From d7ced3380798d6c2705c0ab5a22af9be62da49eb Mon Sep 17 00:00:00 2001 From: Patrick Detlefsen Date: Wed, 3 Sep 2025 15:13:32 +0300 Subject: [PATCH 1/2] feat: add WebAssembly Component Model guest resource support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Implements comprehensive support for WebAssembly Component Model guest resources, enabling Elixir processes to interact with WASM resources through idiomatic OTP patterns. ## Key Features ### Guest Resource Support (WASM → Elixir) - Complete implementation of guest resources from WASM components - Automatic GenServer code generation from WIT files - Each resource becomes a proper OTP process with supervision support - Full method discovery and type-safe function generation ### Code Generation Approach - Parse WIT files at compile time to generate resource clients - Each generated module is a complete GenServer implementation - Methods automatically converted to Elixir function names (kebab-case → snake_case) - Proper argument handling and return value mapping ### Native Integration - Rust NIFs for resource creation and method calls - Automatic resource handle management - Proper lifecycle handling with Erlang garbage collection - Thread-safe operations across the BEAM ## Implementation Details - Added Wasmex.Components.GuestResource macro for code generation - WIT parser extracts resource definitions, methods, and types - Generated modules work seamlessly with OTP supervisors - No special supervisor needed - standard Supervisor/DynamicSupervisor work perfectly - Comprehensive test coverage (28 focused tests) ## Example Usage ```elixir # Define a resource client from WIT defmodule MyApp.Counter do use Wasmex.Components.GuestResource, wit: "path/to/counter.wit", resource: "counter" end # Use it like any OTP process {:ok, counter} = MyApp.Counter.start_link(instance, [42]) {:ok, 43} = MyApp.Counter.increment(counter) {:ok, 0} = MyApp.Counter.reset(counter, 0) # Works with supervisors children = [ {MyApp.Counter, [instance, [100]]} ] Supervisor.start_link(children, strategy: :one_for_one) ``` ## Testing - Edge cases: GC behavior, concurrent access, constructor validation - OTP integration: Supervision, restart strategies, fault isolation - Instance lifecycle: Resources keep instances alive via reference counting - 72% reduction in test code while maintaining excellent coverage ## Cleanup - Removed non-functional host resource infrastructure (1,772 lines) - Consolidated tests from 44 to 28 (more focused, less duplication) - Removed unnecessary GuestResourceSupervisor wrapper - Fixed module naming conventions across test suite This provides a solid foundation for WebAssembly Component Model resources in Elixir, following OTP principles and Elixir idioms throughout. --- .github/workflows/compatibility-elixir.yml | 1 + .github/workflows/elixir-ci.yml | 6 + .github/workflows/rust-ci.yml | 3 + .gitignore | 2 + lib/mix/tasks/wasmex.build_fixtures.ex | 138 ++ lib/wasmex/components.ex | 135 +- lib/wasmex/components/component_instance.ex | 143 ++ lib/wasmex/components/guest_resource.ex | 366 +++++ .../components/guest_resource/discovery.ex | 189 +++ lib/wasmex/components/store_helpers.ex | 42 + lib/wasmex/native.ex | 21 + lib/wasmex/wasi/wasi_p2_options.ex | 16 +- mix.exs | 11 +- native/wasmex/Cargo.lock | 7 + native/wasmex/Cargo.toml | 1 + native/wasmex/src/atoms.rs | 2 + native/wasmex/src/caller.rs | 7 +- native/wasmex/src/component_instance.rs | 26 +- .../wasmex/src/component_type_conversion.rs | 105 +- native/wasmex/src/lib.rs | 3 + native/wasmex/src/pipe.rs | 2 +- native/wasmex/src/resource_methods.rs | 524 +++++++ native/wasmex/src/resource_registry.rs | 80 ++ native/wasmex/src/store.rs | 64 + native/wasmex/src/wasi_resource.rs | 85 ++ native/wasmex/src/wit.rs | 111 +- native/wasmex/test_native_wit.exs | 7 + .../counter-component/.cargo/config.toml | 13 + .../counter-component/.vscode/settings.json | 10 + .../counter-component/Cargo.lock | 387 +++++ .../counter-component/Cargo.toml | 20 + .../counter-component/build.sh | 21 + .../counter-component/src/bindings.rs | 541 +++++++ .../counter-component/src/lib.rs | 58 + .../counter-component/wit/world.wit | 18 + .../filesystem-component/.cargo/config.toml | 13 + .../filesystem-component/Cargo.lock | 387 +++++ .../filesystem-component/Cargo.toml | 20 + .../filesystem-component/build.sh | 21 + .../filesystem-component/src/bindings.rs | 1246 +++++++++++++++++ .../filesystem-component/src/lib.rs | 127 ++ .../components/filesystem_resource_test.exs | 0 .../filesystem-component/wit/world.wit | 25 + .../wasi-test-component/.cargo/config.toml | 15 + .../wasi-test-component/Cargo.lock | 759 ++++++++++ .../wasi-test-component/Cargo.toml | 15 + .../wasi-test-component/build.sh | 25 + .../wasi-test-component/src/bindings.rs | 899 ++++++++++++ .../wasi-test-component/src/lib.rs | 152 ++ .../wasi-test-component/wit/world.wit | 30 + test/component_fixtures/wasi_p2_test/build.sh | 1 - .../wasi_p2_test/wasi-p2-test.js | 6 - .../wasi_p2_test/wasi-p2-test.wasm | Bin 10654751 -> 0 bytes .../wasi_p2_test/wasi-p2-test.wit | 5 - ...component_test.exs => components_test.exs} | 2 +- .../exported_interface_test.exs} | 2 +- test/components/filesystem_resource_test.exs | 319 +++++ .../guest_resource_discovery_test.exs | 146 ++ test/components/guest_resource_otp_test.exs | 152 ++ test/components/guest_resource_test.exs | 230 +++ test/components/import_test.exs | 25 +- test/components/resource_test.exs | 423 ++++++ ...ponent_server_test.exs => server_test.exs} | 2 +- .../type_conversions_test.exs} | 2 +- test/components/wasi_integration_test.exs | 542 +++++++ test/components/wasi_interface_test.exs | 257 ++++ test/components/wit_parser_test.exs | 2 +- test/support/filesystem_sandbox.ex | 28 + test/test_helper.exs | 118 +- 69 files changed, 9093 insertions(+), 68 deletions(-) create mode 100644 lib/mix/tasks/wasmex.build_fixtures.ex create mode 100644 lib/wasmex/components/guest_resource.ex create mode 100644 lib/wasmex/components/guest_resource/discovery.ex create mode 100644 lib/wasmex/components/store_helpers.ex create mode 100644 native/wasmex/src/resource_methods.rs create mode 100644 native/wasmex/src/resource_registry.rs create mode 100644 native/wasmex/src/wasi_resource.rs create mode 100644 native/wasmex/test_native_wit.exs create mode 100644 test/component_fixtures/counter-component/.cargo/config.toml create mode 100644 test/component_fixtures/counter-component/.vscode/settings.json create mode 100644 test/component_fixtures/counter-component/Cargo.lock create mode 100644 test/component_fixtures/counter-component/Cargo.toml create mode 100755 test/component_fixtures/counter-component/build.sh create mode 100644 test/component_fixtures/counter-component/src/bindings.rs create mode 100644 test/component_fixtures/counter-component/src/lib.rs create mode 100644 test/component_fixtures/counter-component/wit/world.wit create mode 100644 test/component_fixtures/filesystem-component/.cargo/config.toml create mode 100644 test/component_fixtures/filesystem-component/Cargo.lock create mode 100644 test/component_fixtures/filesystem-component/Cargo.toml create mode 100755 test/component_fixtures/filesystem-component/build.sh create mode 100644 test/component_fixtures/filesystem-component/src/bindings.rs create mode 100644 test/component_fixtures/filesystem-component/src/lib.rs create mode 100644 test/component_fixtures/filesystem-component/test/components/filesystem_resource_test.exs create mode 100644 test/component_fixtures/filesystem-component/wit/world.wit create mode 100644 test/component_fixtures/wasi-test-component/.cargo/config.toml create mode 100644 test/component_fixtures/wasi-test-component/Cargo.lock create mode 100644 test/component_fixtures/wasi-test-component/Cargo.toml create mode 100755 test/component_fixtures/wasi-test-component/build.sh create mode 100644 test/component_fixtures/wasi-test-component/src/bindings.rs create mode 100644 test/component_fixtures/wasi-test-component/src/lib.rs create mode 100644 test/component_fixtures/wasi-test-component/wit/world.wit delete mode 100755 test/component_fixtures/wasi_p2_test/build.sh delete mode 100644 test/component_fixtures/wasi_p2_test/wasi-p2-test.js delete mode 100644 test/component_fixtures/wasi_p2_test/wasi-p2-test.wasm delete mode 100644 test/component_fixtures/wasi_p2_test/wasi-p2-test.wit rename test/components/{component_test.exs => components_test.exs} (97%) rename test/{component_exported_interface_test.exs => components/exported_interface_test.exs} (98%) create mode 100644 test/components/filesystem_resource_test.exs create mode 100644 test/components/guest_resource_discovery_test.exs create mode 100644 test/components/guest_resource_otp_test.exs create mode 100644 test/components/guest_resource_test.exs create mode 100644 test/components/resource_test.exs rename test/components/{component_server_test.exs => server_test.exs} (98%) rename test/{component_type_conversions_test.exs => components/type_conversions_test.exs} (99%) create mode 100644 test/components/wasi_integration_test.exs create mode 100644 test/components/wasi_interface_test.exs create mode 100644 test/support/filesystem_sandbox.ex diff --git a/.github/workflows/compatibility-elixir.yml b/.github/workflows/compatibility-elixir.yml index 1af6e222..8b28d9e8 100644 --- a/.github/workflows/compatibility-elixir.yml +++ b/.github/workflows/compatibility-elixir.yml @@ -5,6 +5,7 @@ on: push: branches: - main + - '**' # Run on all branches env: MIX_ENV: test diff --git a/.github/workflows/elixir-ci.yml b/.github/workflows/elixir-ci.yml index 8e5c1034..cb8f8632 100644 --- a/.github/workflows/elixir-ci.yml +++ b/.github/workflows/elixir-ci.yml @@ -5,6 +5,7 @@ on: push: branches: - main + - '**' # Run on all branches env: ELIXIR_VERSION: 1.17.3 @@ -120,11 +121,16 @@ jobs: run: | rustup target add wasm32-unknown-unknown rustup target add wasm32-wasip1 + rustup target add wasm32-wasip2 - name: "Install cargo-component" run: cargo install --locked cargo-component shell: bash + - name: "Install wasm-tools" + run: cargo install --locked wasm-tools + shell: bash + - uses: actions/cache@v4 with: path: | diff --git a/.github/workflows/rust-ci.yml b/.github/workflows/rust-ci.yml index d6f8c6e4..9c62e638 100644 --- a/.github/workflows/rust-ci.yml +++ b/.github/workflows/rust-ci.yml @@ -7,6 +7,9 @@ on: push: branches: - main + - '**' # Run on all branches + paths: + - "native/wasmex/**" defaults: run: diff --git a/.gitignore b/.gitignore index 7f165c9c..b5cc6e46 100644 --- a/.gitignore +++ b/.gitignore @@ -25,6 +25,8 @@ wasmex-*.tar # Cargo things in the Rust part of this package priv/native/libwasmex.so test/**/target/* +test/wasm/ +test/component_fixtures/wasi_snapshot_preview1.reactor.wasm .mix_tasks **/.DS_Store diff --git a/lib/mix/tasks/wasmex.build_fixtures.ex b/lib/mix/tasks/wasmex.build_fixtures.ex new file mode 100644 index 00000000..731f1b2f --- /dev/null +++ b/lib/mix/tasks/wasmex.build_fixtures.ex @@ -0,0 +1,138 @@ +defmodule Mix.Tasks.Wasmex.BuildFixtures do + @moduledoc """ + Builds WebAssembly component fixtures for testing. + + This task builds all the Rust-based WebAssembly components in the + test/component_fixtures directory that are required for running tests. + + ## Usage + + mix wasmex.build_fixtures + + This task is automatically run before tests via the mix alias. + """ + use Mix.Task + + @shortdoc "Build WebAssembly component fixtures for testing" + + @fixtures [ + "counter-component", + "filesystem-component", + "wasi-test-component" + ] + + def run(_args) do + ensure_tools_installed() + build_fixtures() + end + + defp ensure_tools_installed do + unless System.find_executable("cargo") do + Mix.raise("cargo not found. Please install Rust: https://rustup.rs/") + end + + # Check if cargo-component is installed + case System.cmd("cargo", ["component", "--version"], stderr_to_stdout: true) do + {_output, 0} -> + :ok + + _ -> + Mix.shell().info("cargo-component not found. Installing...") + {_, 0} = System.cmd("cargo", ["install", "--locked", "cargo-component"]) + Mix.shell().info("cargo-component installed successfully.") + end + + # Ensure wasm32 targets are installed + ensure_target_installed("wasm32-unknown-unknown") + ensure_target_installed("wasm32-wasip1") + ensure_target_installed("wasm32-wasip2") + end + + defp ensure_target_installed(target) do + case System.cmd("rustup", ["target", "list", "--installed"], stderr_to_stdout: true) do + {output, 0} -> + if not String.contains?(output, target) do + Mix.shell().info("Installing Rust target: #{target}") + {_, 0} = System.cmd("rustup", ["target", "add", target]) + end + + _ -> + Mix.raise("rustup not found. Please ensure Rust is properly installed.") + end + end + + defp build_fixtures do + fixtures_dir = Path.join(File.cwd!(), "test/component_fixtures") + + Enum.each(@fixtures, fn fixture -> + build_fixture(fixtures_dir, fixture) + end) + end + + defp build_fixture(fixtures_dir, fixture) do + fixture_path = Path.join(fixtures_dir, fixture) + + wasm_path = + Path.join([ + fixture_path, + "target", + "wasm32-wasip1", + "release", + "#{String.replace(fixture, "-", "_")}.wasm" + ]) + + if File.exists?(fixture_path) do + build_if_needed(fixture_path, wasm_path, fixture) + else + Mix.shell().error("Warning: Component fixture not found: #{fixture_path}") + end + end + + defp build_if_needed(fixture_path, wasm_path, fixture) do + should_build = + not File.exists?(wasm_path) or source_newer_than_target?(fixture_path, wasm_path) + + if should_build do + run_build_command(fixture_path, fixture) + end + end + + defp run_build_command(fixture_path, fixture) do + case System.cmd("cargo", ["component", "build", "--release"], + cd: fixture_path, + stderr_to_stdout: true + ) do + {_output, 0} -> + :ok + + {output, _} -> + Mix.raise("Failed to build #{fixture}:\n#{output}") + end + end + + defp source_newer_than_target?(source_dir, target_file) do + case File.stat(target_file) do + {:ok, %{mtime: target_mtime}} -> + any_source_newer?(source_dir, target_mtime) + + _ -> + # Target doesn't exist, so we need to build + true + end + end + + defp any_source_newer?(source_dir, target_mtime) do + Path.wildcard(Path.join(source_dir, "**/*.{rs,toml,wit}")) + |> Enum.any?(&source_file_newer?(&1, target_mtime)) + end + + defp source_file_newer?(source_file, target_mtime) do + case File.stat(source_file) do + {:ok, %{mtime: source_mtime}} -> + source_mtime > target_mtime + + _ -> + false + end + end +end diff --git a/lib/wasmex/components.ex b/lib/wasmex/components.ex index c76c9317..266209ce 100644 --- a/lib/wasmex/components.ex +++ b/lib/wasmex/components.ex @@ -131,12 +131,139 @@ defmodule Wasmex.Components do {:error, 404} # error case ``` - ### Currently Unsupported Types + - `resource` (stateful objects with methods) + ```wit + resource counter { + constructor(initial: u32); + increment: func() -> u32; + get-value: func() -> u32; + } + ``` + Resources are created using constructors and map to Elixir references. + See the "Working with Resources" section below for details. + + ## Working with Resources + + Resources are stateful objects in the Component Model with constructors and methods. + They provide an object-oriented interface for WebAssembly components. + + ### Creating Resources (Constructors) + + The idiomatic way to create resources is using their constructors: + + ```elixir + # Setup + {:ok, store} = Wasmex.Components.Store.new() + {:ok, component} = Wasmex.Components.Component.new(store, component_bytes) + {:ok, instance} = Wasmex.Components.Instance.new(store, component, %{}) + + # Create a resource using its constructor + {:ok, counter} = Wasmex.Components.Instance.new_resource( + instance, + ["component:counter/types", "counter"], + [42] # constructor arguments + ) + ``` + + ### Calling Resource Methods + + Once you have a resource, you can call its methods: + + ```elixir + # Clean and simple API + {:ok, new_value} = Wasmex.Components.Instance.call(instance, counter, "increment") + IO.puts("Counter incremented to: " <> Integer.to_string(new_value)) + + # Get the current value + {:ok, value} = Wasmex.Components.Instance.call(instance, counter, "get-value") + + # Reset with a parameter + :ok = Wasmex.Components.Instance.call(instance, counter, "reset", [100]) + + # With explicit interface + {:ok, result} = Wasmex.Components.Instance.call( + instance, + resource, + "process", + [42, "hello"], + interface: ["my:interface"] + ) + ``` + + ### Resource Lifecycle + + - Resources are tied to the store that created them + - Resources cannot be used across different stores + - Resources are automatically cleaned up when the store is dropped + - Resources can be passed as arguments to functions and returned from functions - The following WIT type is not yet supported: - - Resources + Support for the Component Model, including resources, should be considered beta quality. - Support for the Component Model should be considered beta quality. + ## WASI Filesystem Resources + + Wasmex supports real WASI filesystem operations through preopened directories. + This allows WebAssembly components to perform actual file I/O operations on the host filesystem + in a controlled and secure manner. + + ### Setup Requirements + + 1. Create a store with preopened directories: + ```elixir + {:ok, store} = Wasmex.Components.Store.new_wasi(%WasiP2Options{ + preopen_dirs: [ + "/host/path/input", # Component can access this as a preopened directory + "/host/path/output" # Component can write files here + ] + }) + ``` + + 2. WASM component can only access preopened paths + 3. All paths in WASM are relative to preopens + + ### Security Model + + - Components CANNOT access arbitrary filesystem paths + - Only explicitly preopened directories are accessible + - Path traversal (../) is blocked by WASI runtime + - Consider using temporary directories for isolation + + ### Example + + ```elixir + # Create a sandboxed directory for testing + sandbox_dir = Path.join(System.tmp_dir!(), "wasmex_#{:rand.uniform(10000)}") + File.mkdir_p!(sandbox_dir) + + # Create subdirectories + File.mkdir_p!(Path.join(sandbox_dir, "input")) + File.mkdir_p!(Path.join(sandbox_dir, "output")) + + # Setup WASI with filesystem access + {:ok, store} = Wasmex.Components.Store.new_wasi(%WasiP2Options{ + preopen_dirs: [ + Path.join(sandbox_dir, "input"), + Path.join(sandbox_dir, "output") + ], + inherit_stdout: true, + inherit_stderr: true + }) + + # Load component and create instance + component_bytes = File.read!("filesystem_component.wasm") + {:ok, component} = Wasmex.Components.Component.new(store, component_bytes) + {:ok, instance} = Wasmex.Components.Instance.new(store, component, %{}) + + # Component can now perform real file operations + {:ok, dir} = Instance.call_function(instance, ["types", "open-directory"], ["/output"]) + {:ok, file} = Instance.call_function(instance, ["types", "[method]directory.create-file"], [dir, "test.txt"]) + {:ok, _} = Instance.call_function(instance, ["types", "[method]file-handle.write"], [file, "Hello WASI!"]) + + # File now exists on host filesystem + File.read!(Path.join(sandbox_dir, "output/test.txt")) # => "Hello WASI!" + + # Clean up + File.rm_rf!(sandbox_dir) + ``` ## Options diff --git a/lib/wasmex/components/component_instance.ex b/lib/wasmex/components/component_instance.ex index 395f71d0..2f2fa842 100644 --- a/lib/wasmex/components/component_instance.ex +++ b/lib/wasmex/components/component_instance.ex @@ -59,4 +59,147 @@ defmodule Wasmex.Components.Instance do Wasmex.Native.component_call_function(store_resource, instance_resource, path, args, from) end + + # Private helper used by new_resource + defp resource_new_internal( + %__MODULE__{store_resource: store_resource, instance_resource: instance_resource}, + resource_type_path, + params, + from + ) do + path = + cond do + is_list(resource_type_path) -> + Enum.map(resource_type_path, &Wasmex.Utils.stringify/1) + + is_atom(resource_type_path) -> + [Wasmex.Utils.stringify(resource_type_path)] + + is_binary(resource_type_path) -> + [resource_type_path] + + is_tuple(resource_type_path) -> + resource_type_path |> Tuple.to_list() |> Enum.map(&Wasmex.Utils.stringify/1) + + true -> + raise "Invalid resource type path - needs to be a list, binary, atom, or tuple" + end + + Wasmex.Native.resource_new(store_resource, instance_resource, path, params, from) + end + + @doc """ + Creates a new resource instance. + + This follows the same pattern as `Instance.new/3` and creates resources + synchronously, handling the message passing internally. + + ## Parameters + + * `instance` - The component instance containing the resource type + * `resource_type_path` - Path to the resource type, e.g., `["component:counter/types", "counter"]` + * `params` - Constructor parameters as defined in the WIT interface + * `timeout` - Timeout in milliseconds (default: 5000) + + ## Returns + + * `{:ok, resource}` - The created resource reference + * `{:error, reason}` - If creation failed + + ## Examples + + # Create a counter resource with initial value 42 + {:ok, counter} = Wasmex.Components.Instance.new_resource( + instance, + ["component:counter/types", "counter"], + [42] + ) + """ + def new_resource( + %__MODULE__{} = instance, + resource_type_path, + params, + timeout \\ 5000 + ) do + ref = make_ref() + from = {self(), ref} + + :ok = resource_new_internal(instance, resource_type_path, params, from) + + receive do + {:returned_function_call, result, ^from} -> result + after + timeout -> {:error, :timeout} + end + end + + @doc """ + Calls a method on a resource. + + This provides a clean API for calling resource methods, similar to + `GenServer.call/3` but for WASM component resources. + + ## Parameters + + * `instance` - The component instance + * `resource` - The resource reference + * `method_name` - Name of the method to call + * `params` - Method parameters (default: []) + * `opts` - Options keyword list: + * `:interface` - Interface path (default: ["component:counter/types"]) + * `:timeout` - Timeout in milliseconds (default: 5000) + + ## Returns + + * `{:ok, result}` - The method result + * `{:error, reason}` - If the call failed + + ## Examples + + # Simple method call + {:ok, value} = Wasmex.Components.Instance.call(instance, counter, "get-value") + + # Call with parameters + :ok = Wasmex.Components.Instance.call(instance, counter, "reset", [100]) + + # With explicit interface + {:ok, result} = Wasmex.Components.Instance.call( + instance, + resource, + "process", + [42, "hello"], + interface: ["my:interface"] + ) + """ + def call( + %__MODULE__{store_resource: store_resource, instance_resource: instance_resource}, + resource, + method_name, + params \\ [], + opts \\ [] + ) do + interface_path = Keyword.get(opts, :interface, ["component:counter/types"]) + timeout = Keyword.get(opts, :timeout, 5000) + ref = make_ref() + from = {self(), ref} + + path = Enum.map(interface_path, &Wasmex.Utils.stringify/1) + + :ok = + Wasmex.Native.resource_call_method( + store_resource, + instance_resource, + resource, + path, + method_name, + params, + from + ) + + receive do + {:returned_function_call, result, ^from} -> result + after + timeout -> {:error, :timeout} + end + end end diff --git a/lib/wasmex/components/guest_resource.ex b/lib/wasmex/components/guest_resource.ex new file mode 100644 index 00000000..cce1f27b --- /dev/null +++ b/lib/wasmex/components/guest_resource.ex @@ -0,0 +1,366 @@ +defmodule Wasmex.Components.GuestResource do + @moduledoc """ + Macro for generating client modules for guest resources. + + This macro parses a WIT file at compile time and generates + a complete GenServer implementation for interacting with WASM guest resources. + + ## Example + + defmodule MyApp.Counter do + use Wasmex.Components.GuestResource, + wit: "path/to/counter.wit", + resource: "counter" + end + + This generates: + - `MyApp.Counter.start_link/2` - Creates a new resource instance + - `MyApp.Counter.increment/1` - Calls the increment method + - `MyApp.Counter.get_value/1` - Calls the get-value method + - `MyApp.Counter.reset/2` - Calls the reset method with an argument + + Each generated module is a complete GenServer implementation. + """ + + defmacro __using__(opts) do + wit_path = Keyword.fetch!(opts, :wit) + resource_name = Keyword.fetch!(opts, :resource) + + # Parse WIT file at compile time + resource_info = parse_wit_at_compile_time(wit_path, resource_name) + + # Generate the complete GenServer module + quote do + use GenServer + require Logger + + # Internal state structure + defmodule State do + @moduledoc false + defstruct [:instance, :resource_handle, :resource_type, :interface_path] + end + + unquote_splicing(generate_public_api(resource_info)) + unquote_splicing(generate_genserver_callbacks(resource_info)) + unquote_splicing(generate_private_helpers()) + end + end + + defp parse_wit_at_compile_time(wit_path, resource_name) do + # Read and parse WIT file at compile time + case Wasmex.Components.GuestResource.Discovery.get_resource_from_wit(wit_path, resource_name) do + {:ok, resource_info} -> + # Generate paths for the resource + paths = Wasmex.Components.GuestResource.Discovery.generate_paths(resource_info) + Map.merge(resource_info, paths) + + {:error, reason} -> + raise CompileError, + description: "Failed to parse WIT file or find resource: #{inspect(reason)}" + end + end + + defp generate_public_api(resource_info) do + [ + generate_start_link(), + generate_child_spec(), + generate_methods(resource_info) + ] + end + + defp generate_start_link() do + quote do + @doc """ + Starts a new resource process. + + ## Parameters + * `instance` - The WASM component instance + * `args` - Constructor arguments + * `opts` - GenServer options (e.g., `:name`) + + ## Returns + * `{:ok, pid}` - The resource process + * `{:error, reason}` - If creation failed + """ + def start_link(instance, args \\ [], opts \\ []) do + {name_opts, init_opts} = Keyword.split(opts, [:name]) + GenServer.start_link(__MODULE__, {instance, args, init_opts}, name_opts) + end + end + end + + defp generate_child_spec() do + quote do + @doc """ + Returns a child specification for supervision. + """ + def child_spec([instance, args, opts]) do + %{ + id: __MODULE__, + start: {__MODULE__, :start_link, [instance, args, opts]}, + type: :worker, + restart: :permanent, + shutdown: 5000 + } + end + + def child_spec([instance, args]) do + child_spec([instance, args, []]) + end + end + end + + defp generate_methods(resource_info) do + resource_info.methods + |> Enum.reject(fn {name, _, _} -> name == :constructor end) + |> Enum.map(fn {method_name, arity, has_return} -> + generate_method(method_name, arity, has_return) + end) + end + + defp generate_method(method_name, arity, has_return) do + # Convert method name to Elixir function name + func_name = method_name_to_function(method_name) + + # The arity is now the actual parameter count (self is not included) + param_count = arity + + cond do + param_count == 0 -> + # No parameters except self + quote do + @doc """ + Calls the `#{unquote(method_name)}` method on the resource. + + ## Parameters + * `resource` - The resource process or name + + ## Returns + * #{unquote(return_doc(has_return))} + """ + def unquote(func_name)(resource) do + GenServer.call(resource, {:call_method, unquote(Atom.to_string(method_name)), []}) + end + + @doc false + def unquote(func_name)(resource, timeout) when is_integer(timeout) do + GenServer.call( + resource, + {:call_method, unquote(Atom.to_string(method_name)), []}, + timeout + ) + end + end + + param_count == 1 -> + # Single parameter + quote do + @doc """ + Calls the `#{unquote(method_name)}` method on the resource. + + ## Parameters + * `resource` - The resource process or name + * `arg` - The method argument + + ## Returns + * #{unquote(return_doc(has_return))} + """ + def unquote(func_name)(resource, arg) do + GenServer.call(resource, {:call_method, unquote(Atom.to_string(method_name)), [arg]}) + end + + @doc false + def unquote(func_name)(resource, arg, timeout) when is_integer(timeout) do + GenServer.call( + resource, + {:call_method, unquote(Atom.to_string(method_name)), [arg]}, + timeout + ) + end + end + + true -> + # Multiple parameters + params = Enum.map(1..param_count, fn i -> {:"arg#{i}", [], nil} end) + + quote do + @doc """ + Calls the `#{unquote(method_name)}` method on the resource. + + ## Parameters + * `resource` - The resource process or name + * `args` - List of method arguments + + ## Returns + * #{unquote(return_doc(has_return))} + """ + def unquote(func_name)(resource, unquote_splicing(params)) do + GenServer.call( + resource, + {:call_method, unquote(Atom.to_string(method_name)), [unquote_splicing(params)]} + ) + end + + @doc false + def unquote(func_name)(resource, unquote_splicing(params), timeout) + when is_integer(timeout) do + GenServer.call( + resource, + {:call_method, unquote(Atom.to_string(method_name)), [unquote_splicing(params)]}, + timeout + ) + end + end + end + end + + defp generate_genserver_callbacks(resource_info) do + [ + quote do + @impl GenServer + def init({instance, args, opts}) do + timeout = Keyword.get(opts, :timeout, 5000) + interface_path = Keyword.get(opts, :interface, unquote(resource_info.interface_path)) + + case __create_resource__( + instance, + unquote(resource_info.constructor_path), + args, + timeout + ) do + {:ok, resource_handle} -> + state = %State{ + instance: instance, + resource_handle: resource_handle, + resource_type: unquote(resource_info.name), + interface_path: interface_path + } + + Process.put(:guest_resource_type, unquote(resource_info.name)) + Process.put(:guest_resource_instance, instance) + + {:ok, state} + + {:error, reason} -> + {:stop, {:resource_creation_failed, reason}} + end + end + + @impl GenServer + def handle_call({:call_method, method, args}, _from, state) do + %State{instance: instance, resource_handle: handle, interface_path: interface_path} = + state + + method_name = __normalize_method_name__(method) + + try do + result = + Wasmex.Components.Instance.call( + instance, + handle, + method_name, + args, + interface: interface_path + ) + + {:reply, result, state} + rescue + error -> + Logger.error("Error calling method #{method_name}: #{inspect(error)}") + {:reply, {:error, {:method_call_failed, error}}, state} + catch + :exit, reason -> + Logger.error("Instance died during method call: #{inspect(reason)}") + {:stop, {:instance_died, reason}, {:error, :instance_died}, state} + end + end + + @impl GenServer + def terminate(_reason, _state) do + # Resources are automatically dropped when the instance is destroyed + :ok + end + end + ] + end + + defp generate_private_helpers() do + [ + quote do + defp __create_resource__(instance, resource_path, args, timeout) do + Wasmex.Components.Instance.new_resource( + instance, + resource_path, + args, + timeout + ) + end + + defp __normalize_method_name__(method) when is_atom(method) do + method + |> Atom.to_string() + |> String.replace("_", "-") + end + + defp __normalize_method_name__(method) when is_binary(method) do + method + end + end + ] + end + + defp method_name_to_function(method_name) when is_atom(method_name) do + method_name + |> Atom.to_string() + |> String.replace("-", "_") + |> String.to_atom() + end + + defp return_doc(true), do: "`{:ok, result}` on success, `{:error, reason}` on failure" + defp return_doc(false), do: "`:ok` on success, `{:error, reason}` on failure" + + @doc """ + Creates a module at runtime from a WIT file. + + This allows dynamic generation of resource clients without compile-time macros. + + ## Parameters + * `module_name` - The name for the generated module + * `wit_path` - Path to the WIT file + * `resource_name` - Name of the resource in the WIT file + + ## Returns + * `{:ok, module}` - The generated module + * `{:error, reason}` - If generation fails + """ + def create_module(module_name, wit_path, resource_name) do + case Wasmex.Components.GuestResource.Discovery.get_resource_from_wit(wit_path, resource_name) do + {:ok, resource_info} -> + paths = Wasmex.Components.GuestResource.Discovery.generate_paths(resource_info) + resource_info = Map.merge(resource_info, paths) + + # Generate module code + module_ast = + quote do + use GenServer + require Logger + + defmodule State do + @moduledoc false + defstruct [:instance, :resource_handle, :resource_type, :interface_path] + end + + unquote_splicing(generate_public_api(resource_info)) + unquote_splicing(generate_genserver_callbacks(resource_info)) + unquote_splicing(generate_private_helpers()) + end + + # Create the module dynamically + Module.create(module_name, module_ast, Macro.Env.location(__ENV__)) + {:ok, module_name} + + {:error, reason} -> + {:error, reason} + end + end +end diff --git a/lib/wasmex/components/guest_resource/discovery.ex b/lib/wasmex/components/guest_resource/discovery.ex new file mode 100644 index 00000000..529af2f8 --- /dev/null +++ b/lib/wasmex/components/guest_resource/discovery.ex @@ -0,0 +1,189 @@ +defmodule Wasmex.Components.GuestResource.Discovery do + @moduledoc """ + Discovery and introspection of guest resources exported by WASM components. + + This module provides tools to discover what resources a component exports + and what methods those resources provide by parsing WIT files. + """ + + @doc """ + Extracts resource information from a WIT file. + + ## Parameters + * `wit_path` - Path to the WIT file + + ## Returns + * `{:ok, resources}` - List of resources with their metadata + * `{:error, reason}` - If parsing failed + + ## Example + + {:ok, resources} = Discovery.from_wit("component.wit") + # => [ + # %{ + # name: :counter, + # interface: :types, + # methods: [ + # {:increment, 1, true}, + # {:get_value, 1, true}, + # {:reset, 2, false} + # ] + # } + # ] + """ + def from_wit(wit_path) when is_binary(wit_path) do + case File.read(wit_path) do + {:ok, wit_contents} -> + resources = Wasmex.Native.wit_exported_resources(wit_path, wit_contents) + + parsed_resources = + resources + |> Enum.map(fn {name, interface, methods} -> + %{ + name: name, + interface: interface, + methods: methods + } + end) + + {:ok, parsed_resources} + + {:error, reason} -> + {:error, {:file_read_error, reason}} + end + rescue + error -> {:error, error} + end + + @doc """ + Extracts function exports from a WIT file. + + This is a convenience wrapper around the native WIT parser for functions. + + ## Parameters + * `wit_path` - Path to the WIT file + + ## Returns + * `{:ok, functions}` - Map of function names to arities + * `{:error, reason}` - If parsing failed + """ + def functions_from_wit(wit_path) when is_binary(wit_path) do + case File.read(wit_path) do + {:ok, wit_contents} -> + functions = Wasmex.Native.wit_exported_functions(wit_path, wit_contents) + {:ok, functions} + + {:error, reason} -> + {:error, {:file_read_error, reason}} + end + rescue + error -> {:error, error} + end + + @doc """ + Gets detailed information about a specific resource from WIT. + + ## Parameters + * `wit_path` - Path to the WIT file + * `resource_name` - Name of the resource (as atom or string) + + ## Returns + * `{:ok, resource_info}` - Resource information if found + * `{:error, :not_found}` - If resource not found + * `{:error, reason}` - If parsing failed + """ + def get_resource_from_wit(wit_path, resource_name) when is_binary(wit_path) do + resource_atom = + case resource_name do + name when is_atom(name) -> name + name when is_binary(name) -> String.to_atom(name) + end + + case from_wit(wit_path) do + {:ok, resources} -> + case Enum.find(resources, &(&1.name == resource_atom)) do + nil -> {:error, :not_found} + resource -> {:ok, resource} + end + + error -> + error + end + end + + @doc """ + Lists all methods for a specific resource from WIT. + + ## Parameters + * `wit_path` - Path to the WIT file + * `resource_name` - Name of the resource + + ## Returns + * `{:ok, methods}` - List of method information + * `{:error, reason}` - If resource not found or parsing failed + """ + def get_resource_methods_from_wit(wit_path, resource_name) do + case get_resource_from_wit(wit_path, resource_name) do + {:ok, resource} -> {:ok, resource.methods} + error -> error + end + end + + @doc """ + Checks if a resource exists in a WIT file. + + ## Parameters + * `wit_path` - Path to the WIT file + * `resource_name` - Name of the resource to check + + ## Returns + * `true` if the resource exists + * `false` otherwise + """ + def resource_exists_in_wit?(wit_path, resource_name) do + case get_resource_from_wit(wit_path, resource_name) do + {:ok, _} -> true + _ -> false + end + end + + @doc """ + Generates constructor and method call paths for a resource. + + This helper generates the correct paths to use with Instance.new_resource + and Instance.call based on the WIT metadata. + + ## Parameters + * `resource_info` - Resource information from `from_wit/1` + * `opts` - Options: + * `:package` - Package name (default: "component") + + ## Returns + * Map with :constructor_path and :interface_path + + ## Example + + {:ok, resources} = Discovery.from_wit("counter.wit") + resource = List.first(resources) + paths = Discovery.generate_paths(resource) + # => %{ + # constructor_path: ["component:counter/types", "counter"], + # interface_path: ["component:counter/types"] + # } + """ + def generate_paths(resource_info, opts \\ []) do + package = Keyword.get(opts, :package, "component") + + interface_str = to_string(resource_info.interface) + resource_str = to_string(resource_info.name) + + # Generate standard component model paths + interface_path = ["#{package}:#{resource_str}/#{interface_str}"] + constructor_path = interface_path ++ [resource_str] + + %{ + constructor_path: constructor_path, + interface_path: interface_path + } + end +end diff --git a/lib/wasmex/components/store_helpers.ex b/lib/wasmex/components/store_helpers.ex new file mode 100644 index 00000000..c4202da4 --- /dev/null +++ b/lib/wasmex/components/store_helpers.ex @@ -0,0 +1,42 @@ +defmodule Wasmex.Components.StoreHelpers do + @moduledoc """ + Helper functions for creating stores with specific configurations, + particularly for filesystem access. + """ + + alias Wasmex.Wasi.WasiP2Options + alias Wasmex.Components.Store + + @doc """ + Creates a new WASI-enabled store with filesystem access configured for the given sandbox directory. + + Maps sandbox subdirectories to WASM paths: + - `sandbox_dir/input` -> Available in WASM as `/input` + - `sandbox_dir/output` -> Available in WASM as `/output` + - `sandbox_dir/work` -> Available in WASM as `/work` + + ## Example + + sandbox_dir = Wasmex.Test.FilesystemSandbox.setup() + {:ok, store} = Wasmex.Components.StoreHelpers.new_wasi_with_fs(sandbox_dir) + """ + def new_wasi_with_fs(sandbox_dir, opts \\ %{}) do + # Build list of directories to preopen + preopen_dirs = [ + Path.join(sandbox_dir, "input"), + Path.join(sandbox_dir, "output"), + Path.join(sandbox_dir, "work") + ] + + wasi_opts = %WasiP2Options{ + preopen_dirs: preopen_dirs, + inherit_stdout: Map.get(opts, :inherit_stdout, true), + inherit_stderr: Map.get(opts, :inherit_stderr, true), + allow_filesystem: true, + args: Map.get(opts, :args, []), + env: Map.get(opts, :env, %{}) + } + + Store.new_wasi(wasi_opts, Map.get(opts, :store_limits)) + end +end diff --git a/lib/wasmex/native.ex b/lib/wasmex/native.ex index c7a6464f..44e30bfb 100644 --- a/lib/wasmex/native.ex +++ b/lib/wasmex/native.ex @@ -99,9 +99,30 @@ defmodule Wasmex.Native do def component_receive_callback_result(_component, _2, _3, _4), do: error() def wit_exported_functions(_path, _wit), do: error() + def wit_exported_resources(_path, _wit), do: error() def wat_to_wasm(_wat), do: error() + def resource_call_method( + _store, + _instance, + _resource, + _interface_path, + _method_name, + _params, + _from + ), + do: error() + + def resource_new( + _store, + _instance, + _resource_type_path, + _params, + _from + ), + do: error() + # When the NIF is loaded, it will override functions in this module. # Calling error is handles the case when the nif could not be loaded. defp error, do: :erlang.nif_error(:nif_not_loaded) diff --git a/lib/wasmex/wasi/wasi_p2_options.ex b/lib/wasmex/wasi/wasi_p2_options.ex index ac3881cb..846f40b9 100644 --- a/lib/wasmex/wasi/wasi_p2_options.ex +++ b/lib/wasmex/wasi/wasi_p2_options.ex @@ -20,6 +20,12 @@ defmodule Wasmex.Wasi.WasiP2Options do * `:allow_http` - When `true`, enables HTTP capabilities for the component. Defaults to `false`. + * `:allow_filesystem` - When `true`, enables filesystem access for the component. + Defaults to `true` for backward compatibility. + + * `:preopen_dirs` - List of directories to preopen for filesystem access. + Defaults to `nil`. Example: `["/tmp", "/home/user/data"]`. + * `:args` - List of command-line arguments to pass to the component. Defaults to `[]`. @@ -31,7 +37,9 @@ defmodule Wasmex.Wasi.WasiP2Options do iex> wasi_opts = %Wasmex.Wasi.WasiP2Options{ ...> args: ["--verbose"], ...> env: %{"DEBUG" => "1"}, - ...> allow_http: true + ...> allow_http: true, + ...> allow_filesystem: true, + ...> preopen_dirs: ["/tmp", "/data"] ...> } iex> {:ok, pid} = Wasmex.Components.start_link(%{ ...> path: "my_component.wasm", @@ -44,6 +52,8 @@ defmodule Wasmex.Wasi.WasiP2Options do inherit_stdout: true, inherit_stderr: true, allow_http: false, + allow_filesystem: nil, + preopen_dirs: nil, args: [], env: %{} @@ -53,6 +63,8 @@ defmodule Wasmex.Wasi.WasiP2Options do inherit_stdin: boolean(), inherit_stdout: boolean(), inherit_stderr: boolean(), - allow_http: boolean() + allow_http: boolean(), + allow_filesystem: boolean() | nil, + preopen_dirs: [String.t()] | nil } end diff --git a/mix.exs b/mix.exs index ec2e7003..b4584bfe 100644 --- a/mix.exs +++ b/mix.exs @@ -13,7 +13,8 @@ defmodule Wasmex.MixProject do name: "wasmex", description: description(), package: package(), - deps: deps() + deps: deps(), + aliases: aliases() ] end @@ -39,9 +40,15 @@ defmodule Wasmex.MixProject do end # Specifies which paths to compile per environment. - defp elixirc_paths(:test), do: ["lib", "test/component_fixtures"] + defp elixirc_paths(:test), do: ["lib", "test/component_fixtures", "test/support"] defp elixirc_paths(_), do: ["lib"] + defp aliases do + [ + test: ["wasmex.build_fixtures", "test"] + ] + end + defp package() do [ # These are the default files included in the package diff --git a/native/wasmex/Cargo.lock b/native/wasmex/Cargo.lock index 70437aaf..476b736e 100644 --- a/native/wasmex/Cargo.lock +++ b/native/wasmex/Cargo.lock @@ -1056,6 +1056,12 @@ dependencies = [ "wasm-bindgen", ] +[[package]] +name = "lazy_static" +version = "1.5.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe" + [[package]] name = "leb128" version = "0.2.5" @@ -2098,6 +2104,7 @@ dependencies = [ name = "wasmex" version = "0.12.0" dependencies = [ + "lazy_static", "once_cell", "rand 0.9.2", "rustler", diff --git a/native/wasmex/Cargo.toml b/native/wasmex/Cargo.toml index 2b6ecb65..94a0ceb7 100644 --- a/native/wasmex/Cargo.toml +++ b/native/wasmex/Cargo.toml @@ -17,6 +17,7 @@ crate-type = ["dylib"] [dependencies] rustler = { version = "0.36.2", features = ["big_integer", "serde"] } once_cell = "1.21.3" +lazy_static = "1.5.0" rand = "0.9.1" wasmtime = "35.0.0" wasmtime-wasi = "35.0.0" diff --git a/native/wasmex/src/atoms.rs b/native/wasmex/src/atoms.rs index ee973062..5009fd7e 100644 --- a/native/wasmex/src/atoms.rs +++ b/native/wasmex/src/atoms.rs @@ -51,4 +51,6 @@ rustler::atoms! { // engine config - cranelift_opt_level speed, speed_and_size, + + nil, } diff --git a/native/wasmex/src/caller.rs b/native/wasmex/src/caller.rs index 9c24cbde..15661026 100644 --- a/native/wasmex/src/caller.rs +++ b/native/wasmex/src/caller.rs @@ -23,8 +23,11 @@ pub(crate) fn get_caller_mut(token: &mut i32) -> Option<&mut Caller<'_, StoreDat pub(crate) fn set_caller(caller: Caller) -> i32 { let mut map = GLOBAL_DATA.lock().unwrap(); - // TODO: prevent duplicates by throwing the dice again when the id is already known - let token = rand::random(); + // Generate a unique token, avoiding duplicates + let mut token = rand::random(); + while map.contains_key(&token) { + token = rand::random(); + } let caller = unsafe { std::mem::transmute::, Caller<'static, StoreData>>(caller) }; map.insert(token, caller); diff --git a/native/wasmex/src/component_instance.rs b/native/wasmex/src/component_instance.rs index c5ab11dc..8caff4c1 100644 --- a/native/wasmex/src/component_instance.rs +++ b/native/wasmex/src/component_instance.rs @@ -27,7 +27,7 @@ use wasmtime_wasi; use wasmtime_wasi_http; use crate::component_type_conversion::{ - convert_params, convert_result_term, encode_result, vals_to_terms, + convert_params, convert_result_term, encode_result_with_store, vals_to_terms_with_store, }; pub struct ComponentCallbackToken { @@ -72,9 +72,23 @@ pub fn new_instance( let mut linker = Linker::new(store.engine()); linker.allow_shadowing(true); - let _ = wasmtime_wasi::p2::add_to_linker_sync(&mut linker); + + // Add core WASI P2 interfaces (includes filesystem, sockets, clocks, random, io, cli) + wasmtime_wasi::p2::add_to_linker_sync(&mut linker).map_err(|e| { + rustler::Error::Term(Box::new(format!( + "Failed to add WASI P2 interfaces to linker: {}", + e + ))) + })?; + + // Add HTTP support if enabled if store.data().http.is_some() { - let _ = wasmtime_wasi_http::add_only_http_to_linker_sync(&mut linker); + wasmtime_wasi_http::add_only_http_to_linker_sync(&mut linker).map_err(|e| { + rustler::Error::Term(Box::new(format!( + "Failed to add WASI HTTP interfaces to linker: {}", + e + ))) + })?; } // Instantiate the component @@ -135,7 +149,8 @@ fn call_elixir_import( let callback_token = create_callback_token(name.clone(), namespace.clone()); let _ = msg_env.send_and_clear(&pid, |env| { - let param_terms = vals_to_terms(params, env); + // TODO: Get store_id from context - using 0 for now + let param_terms = vals_to_terms_with_store(params, env, 0); ( atoms::invoke_callback(), namespace, @@ -336,7 +351,8 @@ fn component_execute_function( ) { Ok(_) => { let _ = function.post_return(&mut *component_store); - encode_result(&thread_env, result, from) + let store_id = component_store.data().store_id; + encode_result_with_store(&thread_env, result, from, store_id) } Err(err) => { let reason = format!("{err}"); diff --git a/native/wasmex/src/component_type_conversion.rs b/native/wasmex/src/component_type_conversion.rs index a57395ed..f7128a36 100644 --- a/native/wasmex/src/component_type_conversion.rs +++ b/native/wasmex/src/component_type_conversion.rs @@ -1,11 +1,12 @@ use rustler::types::atom; use rustler::types::tuple::{self, make_tuple}; -use rustler::{Encoder, Error, Term, TermType}; +use rustler::{Encoder, Error, ResourceArc, Term, TermType}; use std::collections::HashMap; use wasmtime::component::{Type, Val}; use wit_parser::{Resolve, Type as WitType, TypeDef, TypeDefKind}; use crate::atoms; +use crate::wasi_resource::{resource_wrapper_to_val, val_to_resource_wrapper, WasiResourceWrapper}; /// Convert an Elixir term to a Wasm value. /// @@ -342,6 +343,44 @@ pub fn term_to_val( Ok(Val::Flags(flags)) } + (_term_type, Type::Own(_resource_type)) => { + // Try to decode the Elixir resource reference + match param_term.decode::>() { + Ok(resource_wrapper) => { + // Validate that this is an owned resource + if !resource_wrapper.is_owned() { + return Err(Error::Term(Box::new( + "Expected an owned resource, got a borrowed resource".to_string(), + ))); + } + + // Convert to Val::Resource + resource_wrapper_to_val(&resource_wrapper).map_err(|e| { + Error::Term(Box::new(format!("Failed to convert resource: {}", e))) + }) + } + Err(_) => Err(Error::Term(Box::new( + "Expected a resource handle for owned resource type".to_string(), + ))), + } + } + (_term_type, Type::Borrow(_resource_type)) => { + // Try to decode the Elixir resource reference + match param_term.decode::>() { + Ok(resource_wrapper) => { + // Both owned and borrowed resources can be passed when a borrow is expected + // Owned resources are automatically borrowed for the call + + // Convert to Val::Resource + resource_wrapper_to_val(&resource_wrapper).map_err(|e| { + Error::Term(Box::new(format!("Failed to convert resource: {}", e))) + }) + } + Err(_) => Err(Error::Term(Box::new( + "Expected a resource handle for borrowed resource type".to_string(), + ))), + } + } (term_type, val_type) => { if path.is_empty() { Err(Error::Term(Box::new(format!( @@ -362,8 +401,13 @@ pub fn term_to_val( /// Convert a Wasm value to an Elixir term. /// /// Used to for Wasm function calls when passing Wasm params to an Elixir function call. -/// The opposite of this is `term_to_val`, similar to `convert_result_term`. -pub fn val_to_term<'a>(val: &Val, env: rustler::Env<'a>, mut path: Vec) -> Term<'a> { +// Removed unused function val_to_term - use val_to_term_with_store directly if needed +pub fn val_to_term_with_store<'a>( + val: &Val, + env: rustler::Env<'a>, + mut path: Vec, + store_id: usize, +) -> Term<'a> { match val { Val::String(string) => string.encode(env), Val::Bool(bool) => bool.encode(env), @@ -383,7 +427,7 @@ pub fn val_to_term<'a>(val: &Val, env: rustler::Env<'a>, mut path: Vec) .enumerate() .map(|(index, val)| { path.push(format!("list[{index}]")); - let term = val_to_term(val, env, path.clone()); + let term = val_to_term_with_store(val, env, path.clone(), store_id); path.pop(); term }) @@ -396,7 +440,7 @@ pub fn val_to_term<'a>(val: &Val, env: rustler::Env<'a>, mut path: Vec) path.push(format!("record('{key}')")); let term = ( field_name_to_term(&env, key), - val_to_term(val, env, path.clone()), + val_to_term_with_store(val, env, path.clone(), store_id), ); path.pop(); term @@ -410,7 +454,7 @@ pub fn val_to_term<'a>(val: &Val, env: rustler::Env<'a>, mut path: Vec) .enumerate() .map(|(index, val)| { path.push(format!("tuple[{index}]")); - let term = val_to_term(val, env, path.clone()); + let term = val_to_term_with_store(val, env, path.clone(), store_id); path.pop(); term }) @@ -420,7 +464,7 @@ pub fn val_to_term<'a>(val: &Val, env: rustler::Env<'a>, mut path: Vec) Val::Option(option) => match option { Some(boxed_val) => { path.push("option(some)".to_string()); - let inner_term = val_to_term(boxed_val, env, path.clone()); + let inner_term = val_to_term_with_store(boxed_val, env, path.clone(), store_id); path.pop(); (atoms::some(), inner_term).encode(env) } @@ -431,7 +475,7 @@ pub fn val_to_term<'a>(val: &Val, env: rustler::Env<'a>, mut path: Vec) Ok(maybe_val) => { if let Some(inner_val) = maybe_val { path.push("result(ok)".to_string()); - let inner_term = val_to_term(inner_val, env, path.clone()); + let inner_term = val_to_term_with_store(inner_val, env, path.clone(), store_id); path.pop(); (atom::ok(), inner_term).encode(env) } else { @@ -441,7 +485,7 @@ pub fn val_to_term<'a>(val: &Val, env: rustler::Env<'a>, mut path: Vec) Err(maybe_val) => { if let Some(inner_val) = maybe_val { path.push("result(error)".to_string()); - let inner_term = val_to_term(inner_val, env, path.clone()); + let inner_term = val_to_term_with_store(inner_val, env, path.clone(), store_id); path.pop(); (atom::error(), inner_term).encode(env) } else { @@ -455,7 +499,8 @@ pub fn val_to_term<'a>(val: &Val, env: rustler::Env<'a>, mut path: Vec) match payload { Some(boxed_val) => { path.push(format!("Variant('{case_name}')")); - let payload_term = val_to_term(boxed_val, env, path.clone()); + let payload_term = + val_to_term_with_store(boxed_val, env, path.clone(), store_id); path.pop(); (atom, payload_term).encode(env) } @@ -475,19 +520,32 @@ pub fn val_to_term<'a>(val: &Val, env: rustler::Env<'a>, mut path: Vec) map_term } - _ => { - if path.is_empty() { - String::from("Unsupported type").encode(env) - } else { - format!("Unsupported type at {:?}", path.join(".")).encode(env) + Val::Resource(resource_any) => { + // Convert ResourceAny to our wrapper + match val_to_resource_wrapper(Val::Resource(*resource_any), store_id) { + Ok(wrapper) => wrapper.encode(env), + Err(e) => { + if path.is_empty() { + format!("Resource conversion error: {}", e).encode(env) + } else { + format!("Resource conversion error at {:?}: {}", path.join("."), e) + .encode(env) + } + } } } } } -pub fn vals_to_terms<'a>(vals: &[Val], env: rustler::Env<'a>) -> Vec> { +// Removed unused function vals_to_terms - use vals_to_terms_with_store directly if needed + +pub fn vals_to_terms_with_store<'a>( + vals: &[Val], + env: rustler::Env<'a>, + store_id: usize, +) -> Vec> { vals.iter() - .map(|val| val_to_term(val, env, vec![])) + .map(|val| val_to_term_with_store(val, env, vec![], store_id)) .collect::>>() } @@ -515,12 +573,19 @@ pub fn convert_params(param_types: &[Type], param_terms: Vec) -> Result(env: &rustler::Env<'a>, vals: Vec, from: Term<'a>) -> Term<'a> { +// Removed unused function encode_result - use encode_result_with_store directly if needed + +pub fn encode_result_with_store<'a>( + env: &rustler::Env<'a>, + vals: Vec, + from: Term<'a>, + store_id: usize, +) -> Term<'a> { let result_term = match vals.len() { - 1 => val_to_term(vals.first().unwrap(), *env, vec![]), + 1 => val_to_term_with_store(vals.first().unwrap(), *env, vec![], store_id), _ => vals .iter() - .map(|term| val_to_term(term, *env, vec![])) + .map(|term| val_to_term_with_store(term, *env, vec![], store_id)) .collect::>() .encode(*env), }; diff --git a/native/wasmex/src/lib.rs b/native/wasmex/src/lib.rs index 929a3007..364813a8 100644 --- a/native/wasmex/src/lib.rs +++ b/native/wasmex/src/lib.rs @@ -11,7 +11,10 @@ pub mod memory; pub mod module; pub mod pipe; pub mod printable_term_type; +pub mod resource_methods; +pub mod resource_registry; pub mod store; +pub mod wasi_resource; pub mod wat; pub mod wit; diff --git a/native/wasmex/src/pipe.rs b/native/wasmex/src/pipe.rs index b1c5b952..c3204853 100644 --- a/native/wasmex/src/pipe.rs +++ b/native/wasmex/src/pipe.rs @@ -22,7 +22,7 @@ impl Pipe { pub fn new() -> Self { Self::default() } - fn borrow(&self) -> std::sync::RwLockWriteGuard>> { + fn borrow(&self) -> std::sync::RwLockWriteGuard<'_, Cursor>> { RwLock::write(&self.buffer).unwrap() } diff --git a/native/wasmex/src/resource_methods.rs b/native/wasmex/src/resource_methods.rs new file mode 100644 index 00000000..40b3975d --- /dev/null +++ b/native/wasmex/src/resource_methods.rs @@ -0,0 +1,524 @@ +use rustler::{Encoder, Env, OwnedEnv, ResourceArc, Term}; +use std::thread; +use wasmtime::component::Val; +use wasmtime::Store; + +use crate::atoms; +use crate::component_instance::ComponentInstanceResource; +use crate::component_type_conversion::{convert_params, vals_to_terms_with_store}; +use crate::store::{ComponentStoreData, ComponentStoreResource}; +use crate::wasi_resource::WasiResourceWrapper; +use rustler::env::SavedTerm; +use rustler::types::tuple::make_tuple; + +/// Call a method on a resource +#[rustler::nif(name = "resource_call_method", schedule = "DirtyCpu")] +#[allow(clippy::too_many_arguments)] +pub fn resource_call_method<'a>( + env: Env<'a>, + store_resource: ResourceArc, + instance_resource: ResourceArc, + resource_wrapper: ResourceArc, + interface_path: Vec, + method_name: String, + params: Vec>, + from: Term<'a>, +) -> Term<'a> { + // Spawn thread to handle async execution + let pid = env.pid(); + let mut thread_env = OwnedEnv::new(); + let saved_params = thread_env.save(params); + let saved_from = thread_env.save(from); + + thread::spawn(move || { + thread_env.send_and_clear(&pid, |thread_env| { + execute_resource_method( + thread_env, + store_resource, + instance_resource, + resource_wrapper, + interface_path, + method_name, + saved_params, + saved_from, + ) + }) + }); + + atoms::ok().encode(env) +} + +#[allow(clippy::too_many_arguments)] +fn execute_resource_method( + env: Env, + store_resource: ResourceArc, + instance_resource: ResourceArc, + resource_wrapper: ResourceArc, + interface_path: Vec, + method_name: String, + saved_params: SavedTerm, + saved_from: SavedTerm, +) -> Term { + let from = saved_from + .load(env) + .decode::() + .unwrap_or_else(|_| "could not load 'from' param".encode(env)); + + // Validate that the resource belongs to this store + let mut store = store_resource.inner.lock().unwrap(); + let store_id = store.data().store_id; + + if resource_wrapper.store_id != store_id { + let error_msg = "Resource does not belong to this store".to_string(); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + + // Load the params + let params = match saved_params.load(env).decode::>() { + Ok(p) => p, + Err(err) => { + let error_msg = format!("Could not load params: {:?}", err); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + }; + + // Get the instance + let instance = instance_resource.inner.lock().unwrap(); + + // Build the full method path (e.g., ["component:counter/types", "[method]counter.increment"]) + let mut method_path = interface_path.clone(); + // Resource methods in wasmtime components are exported with special naming: + // "[method]." + // We need to determine the resource type name from the resource wrapper + // For now, we'll use a simplified approach + // Note: method names use hyphens, not underscores (e.g., "get-value" not "get_value") + method_path.push(format!("[method]counter.{}", method_name)); + + // Look up the method function + let mut lookup_index = None; + for (index, name) in method_path.iter().enumerate() { + if let Some(inner) = lookup_index { + lookup_index = instance + .get_export(&mut *store, Some(&inner), name.as_str()) + .map(|(_, index)| index); + } else { + lookup_index = instance + .get_export(&mut *store, None, name.as_str()) + .map(|(_, index)| index); + } + + if lookup_index.is_none() { + let error_msg = format!( + "Resource method '{}' not found at position {} in path [{}]", + name, + index, + method_path.join(", ") + ); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + } + + let lookup_index = match lookup_index { + Some(index) => index, + None => { + let error_msg = format!("Resource method not found: [{}]", method_path.join(", ")); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + }; + + // Get the function + let function = match instance.get_func(&mut *store, lookup_index) { + Some(func) => func, + None => { + let error_msg = format!("Could not get function for method '{}'", method_name); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + }; + + // Get the resource from the wrapper + let resource_any = *resource_wrapper.inner.lock().unwrap(); + + // Prepare arguments: resource is the first argument, followed by method params + let mut args = vec![Val::Resource(resource_any)]; + + // Convert the additional parameters + let param_types: Vec = function + .params(&*store) + .iter() + .skip(1) // Skip the resource parameter + .map(|(_, ty)| ty.clone()) + .collect(); + + match convert_params(¶m_types, params) { + Ok(mut converted_params) => args.append(&mut converted_params), + Err(err) => { + let error_msg = format!("Parameter conversion error: {:?}", err); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + } + + // Allocate space for results + let result_count = function.results(&*store).len(); + let mut results = vec![Val::Bool(false); result_count]; + + // Call the method + let store_id = store.data().store_id; + match function.call(&mut *store, &args, &mut results) { + Ok(_) => { + match function.post_return(&mut *store) { + Ok(_) => {} + Err(err) => { + let error_msg = format!("post_return error: {:?}", err); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + } + + // Convert results to Elixir terms + // Convert results to Elixir terms + let result_terms = vals_to_terms_with_store(results.as_slice(), env, store_id); + let result = if result_terms.is_empty() { + atoms::ok().encode(env) + } else if result_terms.len() == 1 { + make_tuple(env, &[atoms::ok().encode(env), result_terms[0]]) + } else { + let tuple = make_tuple(env, &result_terms); + make_tuple(env, &[atoms::ok().encode(env), tuple]) + }; + make_tuple( + env, + &[atoms::returned_function_call().encode(env), result, from], + ) + } + Err(err) => { + let error_msg = format!("Method call error: {:?}", err); + let error_tuple = env.error_tuple(error_msg); + make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ) + } + } +} + +/// Create a new resource instance (constructor) +#[rustler::nif(name = "resource_new", schedule = "DirtyCpu")] +pub fn resource_new<'a>( + env: Env<'a>, + store_resource: ResourceArc, + instance_resource: ResourceArc, + resource_type_path: Vec, + params: Vec>, + from: Term<'a>, +) -> Term<'a> { + // Spawn thread for async execution (like resource_call_method) + let pid = env.pid(); + let mut thread_env = OwnedEnv::new(); + let saved_params = thread_env.save(params); + let saved_from = thread_env.save(from); + + thread::spawn(move || { + thread_env.send_and_clear(&pid, |thread_env| { + execute_resource_constructor( + thread_env, + store_resource, + instance_resource, + resource_type_path, + saved_params, + saved_from, + ) + }) + }); + + atoms::ok().encode(env) +} + +fn execute_resource_constructor( + env: Env, + store_resource: ResourceArc, + instance_resource: ResourceArc, + resource_type_path: Vec, + saved_params: SavedTerm, + saved_from: SavedTerm, +) -> Term { + let from = saved_from + .load(env) + .decode::() + .unwrap_or_else(|_| "could not load 'from' param".encode(env)); + + // Lock store and instance + let mut store = store_resource.inner.lock().unwrap(); + let instance = instance_resource.inner.lock().unwrap(); + + // Load the params + let params = match saved_params.load(env).decode::>() { + Ok(p) => p, + Err(err) => { + let error_msg = format!("Could not load params: {:?}", err); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + }; + + // Parse the resource type path + let (interface_path, resource_name) = match parse_resource_path(resource_type_path.clone()) { + Ok(result) => result, + Err(err) => { + let error_tuple = env.error_tuple(err); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + }; + + // Find the constructor function + let constructor_name = format!("[constructor]{}", resource_name); + let function = + match lookup_constructor(&instance, &mut store, &interface_path, &constructor_name) { + Ok(func) => func, + Err(err) => { + let error_tuple = env.error_tuple(err); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + }; + + // Convert parameters + let param_types: Vec = function + .params(&*store) + .iter() + .map(|(_, ty)| ty.clone()) + .collect(); + + let wasm_params = match convert_params(¶m_types, params) { + Ok(params) => params, + Err(err) => { + let error_msg = format!("Parameter conversion error: {:?}", err); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + }; + + // Call the constructor + let result_count = function.results(&*store).len(); + let mut results = vec![Val::Bool(false); result_count]; + + let store_id = store.data().store_id; + match function.call(&mut *store, &wasm_params, &mut results) { + Ok(_) => { + match function.post_return(&mut *store) { + Ok(_) => {} + Err(err) => { + let error_msg = format!("post_return error: {:?}", err); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + } + + // Extract the resource from results + if results.len() != 1 { + let error_msg = format!( + "Constructor returned {} values, expected 1 resource", + results.len() + ); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + + let resource_any = match &results[0] { + Val::Resource(r) => *r, + _ => { + let error_msg = "Constructor did not return a resource".to_string(); + let error_tuple = env.error_tuple(error_msg); + return make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ); + } + }; + + // Create WasiResourceWrapper + let wrapper = WasiResourceWrapper::new(resource_any, store_id); + let resource_arc = ResourceArc::new(wrapper); + + // Return success with resource handle + let result = make_tuple(env, &[atoms::ok().encode(env), resource_arc.encode(env)]); + make_tuple( + env, + &[atoms::returned_function_call().encode(env), result, from], + ) + } + Err(err) => { + let error_msg = format!("Constructor call error: {:?}", err); + let error_tuple = env.error_tuple(error_msg); + make_tuple( + env, + &[ + atoms::returned_function_call().encode(env), + error_tuple, + from, + ], + ) + } + } +} + +fn parse_resource_path(path: Vec) -> Result<(Vec, String), String> { + // Handle different formats: + // 1. ["component:counter/types", "counter"] - interface + resource + // 2. ["counter"] - just resource name (use default interface) + // 3. ["wasi:http/types", "incoming-request"] - WASI resource + + if path.is_empty() { + return Err("Empty resource path".to_string()); + } + + if path.len() == 1 { + // Just resource name, no interface specified + Ok((vec![], path[0].clone())) + } else { + // Interface path + resource name + let resource_name = path.last().unwrap().clone(); + let interface_path = path[0..path.len() - 1].to_vec(); + Ok((interface_path, resource_name)) + } +} + +fn lookup_constructor( + instance: &wasmtime::component::Instance, + store: &mut Store, + interface_path: &[String], + constructor_name: &str, +) -> Result { + // Navigate nested exports + let mut current_index = None; + + // First navigate to the interface + for segment in interface_path { + current_index = if let Some(index) = current_index { + instance + .get_export(&mut *store, Some(&index), segment) + .map(|(_, idx)| idx) + } else { + instance + .get_export(&mut *store, None, segment) + .map(|(_, idx)| idx) + }; + + if current_index.is_none() { + return Err(format!("Interface segment '{}' not found", segment)); + } + } + + // Now look for the constructor + let (_export, index) = instance + .get_export(&mut *store, current_index.as_ref(), constructor_name) + .ok_or_else(|| format!("Constructor '{}' not found", constructor_name))?; + + // Verify it's a function + instance + .get_func(&mut *store, index) + .ok_or_else(|| format!("Export '{}' is not a function", constructor_name)) +} diff --git a/native/wasmex/src/resource_registry.rs b/native/wasmex/src/resource_registry.rs new file mode 100644 index 00000000..74164012 --- /dev/null +++ b/native/wasmex/src/resource_registry.rs @@ -0,0 +1,80 @@ +use rustler::ResourceArc; +use std::collections::HashMap; +use std::sync::atomic::{AtomicUsize, Ordering}; +use std::sync::Mutex; + +use crate::wasi_resource::WasiResourceWrapper; + +pub struct ResourceRegistry { + resources: Mutex>>, + next_id: AtomicUsize, + store_id: usize, +} + +impl ResourceRegistry { + pub fn new(store_id: usize) -> Self { + ResourceRegistry { + resources: Mutex::new(HashMap::new()), + next_id: AtomicUsize::new(1), + store_id, + } + } + + pub fn register_resource(&self, resource: &ResourceArc) -> usize { + let id = self.next_id.fetch_add(1, Ordering::SeqCst); + + let mut resources = self.resources.lock().unwrap(); + resources.insert(id, resource.clone()); + + id + } + + pub fn get_resource(&self, id: usize) -> Option> { + let resources = self.resources.lock().unwrap(); + resources.get(&id).cloned() + } + + pub fn remove_resource(&self, id: usize) -> bool { + let mut resources = self.resources.lock().unwrap(); + resources.remove(&id).is_some() + } + + pub fn cleanup_dropped_resources(&self) { + // With ResourceArc, we don't need to clean up weak references + // Resources will be dropped when their reference count reaches zero + } + + pub fn validate_resource_store(&self, resource: &WasiResourceWrapper) -> bool { + resource.store_id() == self.store_id + } + + pub fn count_active_resources(&self) -> usize { + let resources = self.resources.lock().unwrap(); + resources.len() + } + + pub fn clear(&self) { + let mut resources = self.resources.lock().unwrap(); + resources.clear(); + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_resource_registration() { + let registry = ResourceRegistry::new(1); + assert_eq!(registry.count_active_resources(), 0); + } + + #[test] + fn test_cleanup_dropped_resources() { + let registry = ResourceRegistry::new(1); + + // Test cleanup doesn't crash on empty registry + registry.cleanup_dropped_resources(); + assert_eq!(registry.count_active_resources(), 0); + } +} diff --git a/native/wasmex/src/store.rs b/native/wasmex/src/store.rs index fbb1d60c..b008f0f2 100644 --- a/native/wasmex/src/store.rs +++ b/native/wasmex/src/store.rs @@ -2,8 +2,10 @@ use crate::{ caller::{get_caller, get_caller_mut}, engine::{unwrap_engine, EngineResource}, pipe::{Pipe, PipeResource}, + resource_registry::ResourceRegistry, }; use rustler::{Error, NifStruct, ResourceArc}; +use std::sync::atomic::{AtomicUsize, Ordering}; use std::{collections::HashMap, sync::Mutex}; use wasi_common::sync::WasiCtxBuilder; use wasmtime::{ @@ -14,6 +16,9 @@ use wasmtime_wasi::p2::{IoView, WasiCtx, WasiView}; use wasmtime_wasi::ResourceTable; use wasmtime_wasi_http::{WasiHttpCtx, WasiHttpView}; +// Global store ID counter +static STORE_ID_COUNTER: AtomicUsize = AtomicUsize::new(1); + #[derive(Debug, NifStruct)] #[module = "Wasmex.Wasi.PreopenOptions"] pub struct ExWasiPreopenOptions { @@ -47,6 +52,8 @@ pub struct ExWasiP2Options { inherit_stdout: bool, inherit_stderr: bool, allow_http: bool, + allow_filesystem: Option, + preopen_dirs: Option>, } #[derive(NifStruct)] @@ -107,6 +114,8 @@ pub struct ComponentStoreData { pub(crate) http: Option, pub(crate) limits: StoreLimits, pub(crate) table: ResourceTable, + pub(crate) resource_registry: ResourceRegistry, + pub(crate) store_id: usize, } impl IoView for ComponentStoreData { @@ -143,6 +152,24 @@ pub struct ComponentStoreResource { #[rustler::resource_impl()] impl rustler::Resource for ComponentStoreResource {} +impl Drop for ComponentStoreResource { + fn drop(&mut self) { + if let Ok(store) = self.inner.lock() { + let store_id = store.data().store_id; + let resource_count = store.data().resource_registry.count_active_resources(); + + if resource_count > 0 { + eprintln!( + "Store {} being dropped with {} active resources, clearing registry", + store_id, resource_count + ); + } + + store.data().resource_registry.clear(); + } + } +} + #[rustler::resource_impl()] impl rustler::Resource for StoreOrCallerResource {} @@ -212,6 +239,7 @@ pub fn component_store_new( } else { StoreLimits::default() }; + let store_id = STORE_ID_COUNTER.fetch_add(1, Ordering::SeqCst); let mut store = Store::new( &engine, ComponentStoreData { @@ -219,6 +247,8 @@ pub fn component_store_new( ctx: None, limits, table: wasmtime_wasi::ResourceTable::new(), + resource_registry: ResourceRegistry::new(store_id), + store_id, }, ); store.limiter(|state| &mut state.limits); @@ -254,6 +284,37 @@ pub fn component_store_new_wasi( wasi_ctx_builder.inherit_stderr(); } + // Enable filesystem access if requested (defaults to true for backward compatibility) + if options.allow_filesystem.unwrap_or(true) { + // Add preopen directories if specified + if let Some(preopen_dirs) = &options.preopen_dirs { + for dir in preopen_dirs { + // Extract the last component of the path to use as the guest path + // e.g., "/tmp/sandbox/input" -> "input" + // This allows multiple directories to be preopened with distinct names + let guest_path = std::path::Path::new(dir) + .file_name() + .and_then(|s| s.to_str()) + .unwrap_or("."); + + wasi_ctx_builder + .preopened_dir( + dir, + guest_path, + wasmtime_wasi::DirPerms::all(), + wasmtime_wasi::FilePerms::all(), + ) + .map_err(|e| { + rustler::Error::Term(Box::new(format!( + "Failed to preopen directory {} as {}: {}", + dir, guest_path, e + ))) + })?; + } + } + } + + // Enable network access for HTTP if options.allow_http { wasi_ctx_builder .inherit_network() @@ -273,6 +334,7 @@ pub fn component_store_new_wasi( None }; + let store_id = STORE_ID_COUNTER.fetch_add(1, Ordering::SeqCst); let mut store = Store::new( &engine, ComponentStoreData { @@ -280,6 +342,8 @@ pub fn component_store_new_wasi( limits, http: http_option, table: wasmtime_wasi::ResourceTable::new(), + resource_registry: ResourceRegistry::new(store_id), + store_id, }, ); store.limiter(|state| &mut state.limits); diff --git a/native/wasmex/src/wasi_resource.rs b/native/wasmex/src/wasi_resource.rs new file mode 100644 index 00000000..2f8fa42a --- /dev/null +++ b/native/wasmex/src/wasi_resource.rs @@ -0,0 +1,85 @@ +use rustler::ResourceArc; +use std::sync::Mutex; +use wasmtime::component::{ResourceAny, Val}; + +#[derive(Debug, Clone)] +pub enum ResourceType { + GuestDefined { type_name: String }, + HostDefined { type_name: String }, +} + +pub struct WasiResourceWrapper { + pub inner: Mutex, + pub resource_type: ResourceType, + pub is_owned: bool, + pub store_id: usize, // Link to the store that owns this resource +} + +#[rustler::resource_impl()] +impl rustler::Resource for WasiResourceWrapper {} + +impl Drop for WasiResourceWrapper { + fn drop(&mut self) { + #[cfg(debug_assertions)] + { + let type_name = match &self.resource_type { + ResourceType::GuestDefined { type_name } => type_name.clone(), + ResourceType::HostDefined { type_name } => type_name.clone(), + }; + eprintln!( + "Dropping WasiResourceWrapper: type={}, store_id={}, owned={}", + type_name, self.store_id, self.is_owned + ); + } + } +} + +impl WasiResourceWrapper { + pub fn new(resource: ResourceAny, store_id: usize) -> Self { + let is_owned = resource.owned(); + + // Determine resource type based on whether it's host or guest + // For now, we'll default to guest-defined until we can properly detect + let resource_type = ResourceType::GuestDefined { + type_name: "unknown".to_string(), // TODO: Get actual type name from resource metadata + }; + + WasiResourceWrapper { + inner: Mutex::new(resource), + resource_type, + is_owned, + store_id, + } + } + + pub fn is_owned(&self) -> bool { + self.is_owned + } + + pub fn store_id(&self) -> usize { + self.store_id + } +} + +pub fn val_to_resource_wrapper( + val: Val, + store_id: usize, +) -> Result, String> { + match val { + Val::Resource(resource_any) => { + let wrapper = WasiResourceWrapper::new(resource_any, store_id); + Ok(ResourceArc::new(wrapper)) + } + _ => Err("Expected a resource value".to_string()), + } +} + +pub fn resource_wrapper_to_val(wrapper: &ResourceArc) -> Result { + let resource = wrapper + .inner + .lock() + .map_err(|e| format!("Could not lock resource: {}", e))?; + + // Clone the ResourceAny - this is safe as it just clones the handle + Ok(Val::Resource(*resource)) +} diff --git a/native/wasmex/src/wit.rs b/native/wasmex/src/wit.rs index 238ca5f0..2c412e91 100644 --- a/native/wasmex/src/wit.rs +++ b/native/wasmex/src/wit.rs @@ -1,5 +1,5 @@ -use rustler::{NifResult, Term}; -use wit_parser::{Resolve, WorldItem}; +use rustler::{Atom, Encoder, Env, NifResult, Term}; +use wit_parser::{FunctionKind, Resolve, TypeDefKind, WorldItem}; #[rustler::nif(name = "wit_exported_functions")] pub fn exported_functions(env: rustler::Env, path: String, wit: String) -> NifResult { @@ -20,3 +20,110 @@ pub fn exported_functions(env: rustler::Env, path: String, wit: String) -> NifRe .collect::>(); Ok(Term::map_from_pairs(env, exported_functions.as_slice()).unwrap()) } + +#[rustler::nif(name = "wit_exported_resources")] +pub fn exported_resources<'a>(env: Env<'a>, path: String, wit: String) -> NifResult> { + let mut resolve = Resolve::new(); + let id = resolve + .push_str(path, &wit) + .map_err(|e| rustler::Error::Term(Box::new(format!("Failed to parse WIT: {e}"))))?; + let world_id = resolve + .select_world(id, None) + .map_err(|e| rustler::Error::Term(Box::new(format!("Failed to select world: {e}"))))?; + + let mut resources = Vec::new(); + + // Iterate through exports to find interfaces + for (name, item) in &resolve.worlds[world_id].exports { + if let WorldItem::Interface { id: interface_id, .. } = item { + let interface = &resolve.interfaces[*interface_id]; + + // Get interface name + let interface_name = match name { + wit_parser::WorldKey::Name(s) => s.as_str(), + wit_parser::WorldKey::Interface(id) => { + resolve.interfaces[*id] + .name + .as_deref() + .unwrap_or("unknown") + } + }; + + // Find resources in the interface + for (type_name, type_id) in &interface.types { + if let TypeDefKind::Resource = resolve.types[*type_id].kind { + let mut methods = Vec::new(); + + // Find all functions related to this resource + for (func_name, func) in &interface.functions { + match &func.kind { + FunctionKind::Constructor(resource_id) if *resource_id == *type_id => { + // This is a constructor for our resource + let method_info = ( + Atom::from_str(env, "constructor").unwrap().encode(env), + func.params.len(), + true, // Constructors always return the resource + ); + methods.push(method_info.encode(env)); + } + FunctionKind::Method(resource_id) | FunctionKind::AsyncMethod(resource_id) + if *resource_id == *type_id => { + // This is a method of our resource + // Extract just the method name from patterns like "[method]counter.increment" + let method_name = if func_name.starts_with("[method]") { + // Remove "[method]resource." prefix + let prefix = format!("[method]{}.", type_name); + if func_name.starts_with(&prefix) { + &func_name[prefix.len()..] + } else { + // Just remove "[method]" + &func_name[8..] + } + } else { + func_name.as_str() + }; + + // For methods, wit_parser includes the implicit self in params, so subtract 1 + let arity = if func.params.is_empty() { + 0 + } else { + func.params.len() - 1 + }; + + let method_info = ( + Atom::from_str(env, method_name).unwrap().encode(env), + arity, + func.result.is_some(), + ); + methods.push(method_info.encode(env)); + } + FunctionKind::Static(resource_id) | FunctionKind::AsyncStatic(resource_id) + if *resource_id == *type_id => { + // This is a static method of our resource + let method_info = ( + Atom::from_str(env, func_name).unwrap().encode(env), + func.params.len(), + func.result.is_some(), + ); + methods.push(method_info.encode(env)); + } + _ => { + // Not related to this resource + } + } + } + + // Create resource info tuple + let resource_info = ( + Atom::from_str(env, type_name).unwrap().encode(env), + Atom::from_str(env, interface_name).unwrap().encode(env), + methods.encode(env), + ); + resources.push(resource_info); + } + } + } + } + + Ok(resources.encode(env)) +} \ No newline at end of file diff --git a/native/wasmex/test_native_wit.exs b/native/wasmex/test_native_wit.exs new file mode 100644 index 00000000..f82a1bd6 --- /dev/null +++ b/native/wasmex/test_native_wit.exs @@ -0,0 +1,7 @@ +# Test the native wit_exported_resources function directly +wit_content = File.read!("test/component_fixtures/counter-component/wit/world.wit") + +IO.puts("Testing native wit_exported_resources function...") +result = :wasmex_native.wit_exported_resources(wit_content) + +IO.inspect(result, label: "Raw output from native function", limit: :infinity) diff --git a/test/component_fixtures/counter-component/.cargo/config.toml b/test/component_fixtures/counter-component/.cargo/config.toml new file mode 100644 index 00000000..9a33d0f4 --- /dev/null +++ b/test/component_fixtures/counter-component/.cargo/config.toml @@ -0,0 +1,13 @@ +[target.wasm32-wasip2] +linker = "rust-lld" +rustflags = [ + "-C", "link-arg=-zstack-size=1048576", + "-C", "target-feature=+bulk-memory", + "-C", "target-feature=+mutable-globals", + "-C", "target-feature=+sign-ext", +] + +[env] +CC_wasm32_wasip2 = "clang" +AR_wasm32_wasip2 = "llvm-ar" +CFLAGS_wasm32_wasip2 = "-O3" \ No newline at end of file diff --git a/test/component_fixtures/counter-component/.vscode/settings.json 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b/test/component_fixtures/counter-component/Cargo.toml new file mode 100644 index 00000000..a7702be3 --- /dev/null +++ b/test/component_fixtures/counter-component/Cargo.toml @@ -0,0 +1,20 @@ +[package] +name = "counter-component" +version = "0.1.0" +edition = "2021" + +[dependencies] + +[target.'cfg(all(target_arch = "wasm32", target_os = "wasi"))'.dependencies] +wit-bindgen = "0.35.0" + +[lib] +crate-type = ["cdylib", "rlib"] + +[profile.wasi-release] +inherits = "release" +lto = "thin" +opt-level = "z" +codegen-units = 1 +strip = true +panic = "abort" diff --git a/test/component_fixtures/counter-component/build.sh b/test/component_fixtures/counter-component/build.sh new file mode 100755 index 00000000..e4f30bec --- /dev/null +++ b/test/component_fixtures/counter-component/build.sh @@ -0,0 +1,21 @@ +#!/bin/bash +set -e + +echo "Building counter-component with native wasm32-wasip2 target..." + +# Add wasm32-wasip2 target if not already added +rustup target add wasm32-wasip2 2>/dev/null || true + +# Build with native target +cargo build --profile wasi-release --target wasm32-wasip2 --lib + +# Create component with reactor adapter (for libraries) +wasm-tools component new \ + target/wasm32-wasip2/wasi-release/counter_component.wasm \ + --adapt wasi_snapshot_preview1=../wasi_snapshot_preview1.reactor.wasm \ + -o target/wasm32-wasip2/wasi-release/counter_component_final.wasm + +# Validate the component +wasm-tools validate target/wasm32-wasip2/wasi-release/counter_component_final.wasm + +echo "Successfully built counter-component!" \ No newline at end of file diff --git a/test/component_fixtures/counter-component/src/bindings.rs b/test/component_fixtures/counter-component/src/bindings.rs new file mode 100644 index 00000000..fd048209 --- /dev/null +++ b/test/component_fixtures/counter-component/src/bindings.rs @@ -0,0 +1,541 @@ +// Generated by `wit-bindgen` 0.41.0. DO NOT EDIT! +// Options used: +// * runtime_path: "wit_bindgen_rt" +#[doc(hidden)] +#[allow(non_snake_case)] +pub unsafe fn _export_test_cabi() -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::test(); + let ptr1 = (&raw mut _RET_AREA.0).cast::(); + let vec2 = (result0.into_bytes()).into_boxed_slice(); + let ptr2 = vec2.as_ptr().cast::(); + let len2 = vec2.len(); + ::core::mem::forget(vec2); + *ptr1.add(::core::mem::size_of::<*const u8>()).cast::() = len2; + *ptr1.add(0).cast::<*mut u8>() = ptr2.cast_mut(); + ptr1 +} +#[doc(hidden)] +#[allow(non_snake_case)] +pub unsafe fn __post_return_test(arg0: *mut u8) { + let l0 = *arg0.add(0).cast::<*mut u8>(); + let l1 = *arg0.add(::core::mem::size_of::<*const u8>()).cast::(); + _rt::cabi_dealloc(l0, l1, 1); +} +pub trait Guest { + fn test() -> _rt::String; +} +#[doc(hidden)] +macro_rules! __export_world_example_cabi { + ($ty:ident with_types_in $($path_to_types:tt)*) => { + const _ : () = { #[unsafe (export_name = "test")] unsafe extern "C" fn + export_test() -> * mut u8 { unsafe { $($path_to_types)*:: _export_test_cabi::<$ty + > () } } #[unsafe (export_name = "cabi_post_test")] unsafe extern "C" fn + _post_return_test(arg0 : * mut u8,) { unsafe { $($path_to_types)*:: + __post_return_test::<$ty > (arg0) } } }; + }; +} +#[doc(hidden)] +pub(crate) use __export_world_example_cabi; +#[cfg_attr(target_pointer_width = "64", repr(align(8)))] +#[cfg_attr(target_pointer_width = "32", repr(align(4)))] +struct _RetArea([::core::mem::MaybeUninit; 2 * ::core::mem::size_of::<*const u8>()]); +static mut _RET_AREA: _RetArea = _RetArea( + [::core::mem::MaybeUninit::uninit(); 2 * ::core::mem::size_of::<*const u8>()], +); +#[rustfmt::skip] +#[allow(dead_code, clippy::all)] +pub mod exports { + pub mod component { + pub mod counter { + #[allow(dead_code, async_fn_in_trait, unused_imports, clippy::all)] + pub mod types { + #[used] + #[doc(hidden)] + static __FORCE_SECTION_REF: fn() = super::super::super::super::__link_custom_section_describing_imports; + use super::super::super::super::_rt; + #[derive(Debug)] + #[repr(transparent)] + pub struct Counter { + handle: _rt::Resource, + } + type _CounterRep = Option; + impl Counter { + /// Creates a new resource from the specified representation. + /// + /// This function will create a new resource handle by moving `val` onto + /// the heap and then passing that heap pointer to the component model to + /// create a handle. The owned handle is then returned as `Counter`. + pub fn new(val: T) -> Self { + Self::type_guard::(); + let val: _CounterRep = Some(val); + let ptr: *mut _CounterRep = _rt::Box::into_raw( + _rt::Box::new(val), + ); + unsafe { Self::from_handle(T::_resource_new(ptr.cast())) } + } + /// Gets access to the underlying `T` which represents this resource. + pub fn get(&self) -> &T { + let ptr = unsafe { &*self.as_ptr::() }; + ptr.as_ref().unwrap() + } + /// Gets mutable access to the underlying `T` which represents this + /// resource. + pub fn get_mut(&mut self) -> &mut T { + let ptr = unsafe { &mut *self.as_ptr::() }; + ptr.as_mut().unwrap() + } + /// Consumes this resource and returns the underlying `T`. + pub fn into_inner(self) -> T { + let ptr = unsafe { &mut *self.as_ptr::() }; + ptr.take().unwrap() + } + #[doc(hidden)] + pub unsafe fn from_handle(handle: u32) -> Self { + Self { + handle: unsafe { _rt::Resource::from_handle(handle) }, + } + } + #[doc(hidden)] + pub fn take_handle(&self) -> u32 { + _rt::Resource::take_handle(&self.handle) + } + #[doc(hidden)] + pub fn handle(&self) -> u32 { + _rt::Resource::handle(&self.handle) + } + #[doc(hidden)] + fn type_guard() { + use core::any::TypeId; + static mut LAST_TYPE: Option = None; + unsafe { + assert!(! cfg!(target_feature = "atomics")); + let id = TypeId::of::(); + match LAST_TYPE { + Some(ty) => { + assert!( + ty == id, "cannot use two types with this resource type" + ) + } + None => LAST_TYPE = Some(id), + } + } + } + #[doc(hidden)] + pub unsafe fn dtor(handle: *mut u8) { + Self::type_guard::(); + let _ = unsafe { + _rt::Box::from_raw(handle as *mut _CounterRep) + }; + } + fn as_ptr(&self) -> *mut _CounterRep { + Counter::type_guard::(); + T::_resource_rep(self.handle()).cast() + } + } + /// A borrowed version of [`Counter`] which represents a borrowed value + /// with the lifetime `'a`. + #[derive(Debug)] + #[repr(transparent)] + pub struct CounterBorrow<'a> { + rep: *mut u8, + _marker: core::marker::PhantomData<&'a Counter>, + } + impl<'a> CounterBorrow<'a> { + #[doc(hidden)] + pub unsafe fn lift(rep: usize) -> Self { + Self { + rep: rep as *mut u8, + _marker: core::marker::PhantomData, + } + } + /// Gets access to the underlying `T` in this resource. + pub fn get(&self) -> &T { + let ptr = unsafe { &mut *self.as_ptr::() }; + ptr.as_ref().unwrap() + } + fn as_ptr(&self) -> *mut _CounterRep { + Counter::type_guard::(); + self.rep.cast() + } + } + unsafe impl _rt::WasmResource for Counter { + #[inline] + unsafe fn drop(_handle: u32) { + #[cfg(not(target_arch = "wasm32"))] + unreachable!(); + #[cfg(target_arch = "wasm32")] + { + #[link( + wasm_import_module = "[export]component:counter/types" + )] + unsafe extern "C" { + #[link_name = "[resource-drop]counter"] + fn drop(_: u32); + } + unsafe { drop(_handle) }; + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_constructor_counter_cabi( + arg0: i32, + ) -> i32 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = Counter::new(T::new(arg0 as u32)); + (result0).take_handle() as i32 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_counter_increment_cabi( + arg0: *mut u8, + ) -> i32 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::increment( + unsafe { CounterBorrow::lift(arg0 as u32 as usize) }.get(), + ); + _rt::as_i32(result0) + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_counter_get_value_cabi( + arg0: *mut u8, + ) -> i32 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::get_value( + unsafe { CounterBorrow::lift(arg0 as u32 as usize) }.get(), + ); + _rt::as_i32(result0) + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_counter_reset_cabi( + arg0: *mut u8, + arg1: i32, + ) { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + T::reset( + unsafe { CounterBorrow::lift(arg0 as u32 as usize) }.get(), + arg1 as u32, + ); + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_make_counter_cabi(arg0: i32) -> i32 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::make_counter(arg0 as u32); + (result0).take_handle() as i32 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_use_counter_cabi(arg0: i32) -> i32 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::use_counter(unsafe { + CounterBorrow::lift(arg0 as u32 as usize) + }); + _rt::as_i32(result0) + } + pub trait Guest { + type Counter: GuestCounter; + fn make_counter(initial: u32) -> Counter; + fn use_counter(c: CounterBorrow<'_>) -> u32; + } + pub trait GuestCounter: 'static { + #[doc(hidden)] + unsafe fn _resource_new(val: *mut u8) -> u32 + where + Self: Sized, + { + #[cfg(not(target_arch = "wasm32"))] + { + let _ = val; + unreachable!(); + } + #[cfg(target_arch = "wasm32")] + { + #[link( + wasm_import_module = "[export]component:counter/types" + )] + unsafe extern "C" { + #[link_name = "[resource-new]counter"] + fn new(_: *mut u8) -> u32; + } + unsafe { new(val) } + } + } + #[doc(hidden)] + fn _resource_rep(handle: u32) -> *mut u8 + where + Self: Sized, + { + #[cfg(not(target_arch = "wasm32"))] + { + let _ = handle; + unreachable!(); + } + #[cfg(target_arch = "wasm32")] + { + #[link( + wasm_import_module = "[export]component:counter/types" + )] + unsafe extern "C" { + #[link_name = "[resource-rep]counter"] + fn rep(_: u32) -> *mut u8; + } + unsafe { rep(handle) } + } + } + fn new(initial: u32) -> Self; + fn increment(&self) -> u32; + fn get_value(&self) -> u32; + fn reset(&self, value: u32) -> (); + } + #[doc(hidden)] + macro_rules! __export_component_counter_types_cabi { + ($ty:ident with_types_in $($path_to_types:tt)*) => { + const _ : () = { #[unsafe (export_name = + "component:counter/types#[constructor]counter")] unsafe extern + "C" fn export_constructor_counter(arg0 : i32,) -> i32 { unsafe { + $($path_to_types)*:: _export_constructor_counter_cabi::<<$ty as + $($path_to_types)*:: Guest >::Counter > (arg0) } } #[unsafe + (export_name = + "component:counter/types#[method]counter.increment")] unsafe + extern "C" fn export_method_counter_increment(arg0 : * mut u8,) + -> i32 { unsafe { $($path_to_types)*:: + _export_method_counter_increment_cabi::<<$ty as + $($path_to_types)*:: Guest >::Counter > (arg0) } } #[unsafe + (export_name = + "component:counter/types#[method]counter.get-value")] unsafe + extern "C" fn export_method_counter_get_value(arg0 : * mut u8,) + -> i32 { unsafe { $($path_to_types)*:: + _export_method_counter_get_value_cabi::<<$ty as + $($path_to_types)*:: Guest >::Counter > (arg0) } } #[unsafe + (export_name = "component:counter/types#[method]counter.reset")] + unsafe extern "C" fn export_method_counter_reset(arg0 : * mut u8, + arg1 : i32,) { unsafe { $($path_to_types)*:: + _export_method_counter_reset_cabi::<<$ty as $($path_to_types)*:: + Guest >::Counter > (arg0, arg1) } } #[unsafe (export_name = + "component:counter/types#make-counter")] unsafe extern "C" fn + export_make_counter(arg0 : i32,) -> i32 { unsafe { + $($path_to_types)*:: _export_make_counter_cabi::<$ty > (arg0) } } + #[unsafe (export_name = "component:counter/types#use-counter")] + unsafe extern "C" fn export_use_counter(arg0 : i32,) -> i32 { + unsafe { $($path_to_types)*:: _export_use_counter_cabi::<$ty > + (arg0) } } const _ : () = { #[doc(hidden)] #[unsafe (export_name + = "component:counter/types#[dtor]counter")] + #[allow(non_snake_case)] unsafe extern "C" fn dtor(rep : * mut + u8) { unsafe { $($path_to_types)*:: Counter::dtor::< <$ty as + $($path_to_types)*:: Guest >::Counter > (rep) } } }; }; + }; + } + #[doc(hidden)] + pub(crate) use __export_component_counter_types_cabi; + } + } + } +} +#[rustfmt::skip] +mod _rt { + #![allow(dead_code, clippy::all)] + #[cfg(target_arch = "wasm32")] + pub fn run_ctors_once() { + wit_bindgen_rt::run_ctors_once(); + } + pub unsafe fn cabi_dealloc(ptr: *mut u8, size: usize, align: usize) { + if size == 0 { + return; + } + let layout = alloc::Layout::from_size_align_unchecked(size, align); + alloc::dealloc(ptr, layout); + } + pub use alloc_crate::string::String; + use core::fmt; + use core::marker; + use core::sync::atomic::{AtomicU32, Ordering::Relaxed}; + /// A type which represents a component model resource, either imported or + /// exported into this component. + /// + /// This is a low-level wrapper which handles the lifetime of the resource + /// (namely this has a destructor). The `T` provided defines the component model + /// intrinsics that this wrapper uses. + /// + /// One of the chief purposes of this type is to provide `Deref` implementations + /// to access the underlying data when it is owned. + /// + /// This type is primarily used in generated code for exported and imported + /// resources. + #[repr(transparent)] + pub struct Resource { + handle: AtomicU32, + _marker: marker::PhantomData, + } + /// A trait which all wasm resources implement, namely providing the ability to + /// drop a resource. + /// + /// This generally is implemented by generated code, not user-facing code. + #[allow(clippy::missing_safety_doc)] + pub unsafe trait WasmResource { + /// Invokes the `[resource-drop]...` intrinsic. + unsafe fn drop(handle: u32); + } + impl Resource { + #[doc(hidden)] + pub unsafe fn from_handle(handle: u32) -> Self { + debug_assert!(handle != u32::MAX); + Self { + handle: AtomicU32::new(handle), + _marker: marker::PhantomData, + } + } + /// Takes ownership of the handle owned by `resource`. + /// + /// Note that this ideally would be `into_handle` taking `Resource` by + /// ownership. The code generator does not enable that in all situations, + /// unfortunately, so this is provided instead. + /// + /// Also note that `take_handle` is in theory only ever called on values + /// owned by a generated function. For example a generated function might + /// take `Resource` as an argument but then call `take_handle` on a + /// reference to that argument. In that sense the dynamic nature of + /// `take_handle` should only be exposed internally to generated code, not + /// to user code. + #[doc(hidden)] + pub fn take_handle(resource: &Resource) -> u32 { + resource.handle.swap(u32::MAX, Relaxed) + } + #[doc(hidden)] + pub fn handle(resource: &Resource) -> u32 { + resource.handle.load(Relaxed) + } + } + impl fmt::Debug for Resource { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("Resource").field("handle", &self.handle).finish() + } + } + impl Drop for Resource { + fn drop(&mut self) { + unsafe { + match self.handle.load(Relaxed) { + u32::MAX => {} + other => T::drop(other), + } + } + } + } + pub use alloc_crate::boxed::Box; + pub fn as_i32(t: T) -> i32 { + t.as_i32() + } + pub trait AsI32 { + fn as_i32(self) -> i32; + } + impl<'a, T: Copy + AsI32> AsI32 for &'a T { + fn as_i32(self) -> i32 { + (*self).as_i32() + } + } + impl AsI32 for i32 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for u32 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for i16 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for u16 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for i8 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for u8 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for char { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for usize { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + pub use alloc_crate::alloc; + extern crate alloc as alloc_crate; +} +/// Generates `#[unsafe(no_mangle)]` functions to export the specified type as +/// the root implementation of all generated traits. +/// +/// For more information see the documentation of `wit_bindgen::generate!`. +/// +/// ```rust +/// # macro_rules! export{ ($($t:tt)*) => (); } +/// # trait Guest {} +/// struct MyType; +/// +/// impl Guest for MyType { +/// // ... +/// } +/// +/// export!(MyType); +/// ``` +#[allow(unused_macros)] +#[doc(hidden)] +macro_rules! __export_example_impl { + ($ty:ident) => { + self::export!($ty with_types_in self); + }; + ($ty:ident with_types_in $($path_to_types_root:tt)*) => { + $($path_to_types_root)*:: __export_world_example_cabi!($ty with_types_in + $($path_to_types_root)*); $($path_to_types_root)*:: + exports::component::counter::types::__export_component_counter_types_cabi!($ty + with_types_in $($path_to_types_root)*:: exports::component::counter::types); + }; +} +#[doc(inline)] +pub(crate) use __export_example_impl as export; +#[cfg(target_arch = "wasm32")] +#[unsafe( + link_section = "component-type:wit-bindgen:0.41.0:component:counter:example:encoded world" +)] +#[doc(hidden)] +#[allow(clippy::octal_escapes)] +pub static __WIT_BINDGEN_COMPONENT_TYPE: [u8; 420] = *b"\ +\0asm\x0d\0\x01\0\0\x19\x16wit-component-encoding\x04\0\x07\xa6\x02\x01A\x02\x01\ +A\x04\x01@\0\0s\x04\0\x04test\x01\0\x01B\x0d\x04\0\x07counter\x03\x01\x01i\0\x01\ +@\x01\x07initialy\0\x01\x04\0\x14[constructor]counter\x01\x02\x01h\0\x01@\x01\x04\ +self\x03\0y\x04\0\x19[method]counter.increment\x01\x04\x04\0\x19[method]counter.\ +get-value\x01\x04\x01@\x02\x04self\x03\x05valuey\x01\0\x04\0\x15[method]counter.\ +reset\x01\x05\x04\0\x0cmake-counter\x01\x02\x01@\x01\x01c\x03\0y\x04\0\x0buse-co\ +unter\x01\x06\x04\0\x17component:counter/types\x05\x01\x04\0\x19component:counte\ +r/example\x04\0\x0b\x0d\x01\0\x07example\x03\0\0\0G\x09producers\x01\x0cprocesse\ +d-by\x02\x0dwit-component\x070.227.1\x10wit-bindgen-rust\x060.41.0"; +#[inline(never)] +#[doc(hidden)] +pub fn __link_custom_section_describing_imports() { + wit_bindgen_rt::maybe_link_cabi_realloc(); +} diff --git a/test/component_fixtures/counter-component/src/lib.rs b/test/component_fixtures/counter-component/src/lib.rs new file mode 100644 index 00000000..5d5304d9 --- /dev/null +++ b/test/component_fixtures/counter-component/src/lib.rs @@ -0,0 +1,58 @@ +#![cfg(target_os = "wasi")] + +wit_bindgen::generate!({ + path: "wit", + world: "example", +}); + +use self::exports::component::counter::types::{Guest as TypesGuest, GuestCounter, Counter as TypesCounter, CounterBorrow}; +use std::cell::RefCell; + +struct Component; + +pub struct Counter { + value: RefCell, +} + +impl Guest for Component { + fn test() -> String { + "Counter resource test component".to_string() + } +} + +impl TypesGuest for Component { + type Counter = Counter; + + fn make_counter(initial: u32) -> TypesCounter { + TypesCounter::new(Counter::new(initial)) + } + + fn use_counter(c: CounterBorrow<'_>) -> u32 { + let counter = c.get::(); + counter.get_value() + } +} + +impl GuestCounter for Counter { + fn new(initial: u32) -> Self { + Counter { + value: RefCell::new(initial), + } + } + + fn increment(&self) -> u32 { + let mut val = self.value.borrow_mut(); + *val += 1; + *val + } + + fn get_value(&self) -> u32 { + *self.value.borrow() + } + + fn reset(&self, value: u32) { + *self.value.borrow_mut() = value; + } +} + +export!(Component); \ No newline at end of file diff --git a/test/component_fixtures/counter-component/wit/world.wit b/test/component_fixtures/counter-component/wit/world.wit new file mode 100644 index 00000000..17826f3c --- /dev/null +++ b/test/component_fixtures/counter-component/wit/world.wit @@ -0,0 +1,18 @@ +package component:counter; + +interface types { + resource counter { + constructor(initial: u32); + increment: func() -> u32; + get-value: func() -> u32; + reset: func(value: u32); + } + + make-counter: func(initial: u32) -> counter; + use-counter: func(c: borrow) -> u32; +} + +world example { + export types; + export test: func() -> string; +} \ No newline at end of file diff --git a/test/component_fixtures/filesystem-component/.cargo/config.toml b/test/component_fixtures/filesystem-component/.cargo/config.toml new file mode 100644 index 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a/test/component_fixtures/filesystem-component/Cargo.toml b/test/component_fixtures/filesystem-component/Cargo.toml new file mode 100644 index 00000000..0aca54a8 --- /dev/null +++ b/test/component_fixtures/filesystem-component/Cargo.toml @@ -0,0 +1,20 @@ +[package] +name = "filesystem-component" +version = "0.1.0" +edition = "2021" + +[dependencies] + +[target.'cfg(all(target_arch = "wasm32", target_os = "wasi"))'.dependencies] +wit-bindgen = "0.35.0" + +[lib] +crate-type = ["cdylib", "rlib"] + +[profile.wasi-release] +inherits = "release" +lto = "thin" +opt-level = "z" +codegen-units = 1 +strip = true +panic = "abort" \ No newline at end of file diff --git a/test/component_fixtures/filesystem-component/build.sh b/test/component_fixtures/filesystem-component/build.sh new file mode 100755 index 00000000..36d330bf --- /dev/null +++ b/test/component_fixtures/filesystem-component/build.sh @@ -0,0 +1,21 @@ +#!/bin/bash +set -e + +echo "Building filesystem-component with native wasm32-wasip2 target..." + +# Add wasm32-wasip2 target if not already added +rustup target add wasm32-wasip2 2>/dev/null || true + +# Build with native target +cargo build --profile wasi-release --target wasm32-wasip2 --lib + +# Create component with reactor adapter (for libraries) +wasm-tools component new \ + target/wasm32-wasip2/wasi-release/filesystem_component.wasm \ + --adapt wasi_snapshot_preview1=../wasi_snapshot_preview1.reactor.wasm \ + -o target/wasm32-wasip2/wasi-release/filesystem_component_final.wasm + +# Validate the component +wasm-tools validate target/wasm32-wasip2/wasi-release/filesystem_component_final.wasm + +echo "Successfully built filesystem-component!" \ No newline at end of file diff --git a/test/component_fixtures/filesystem-component/src/bindings.rs b/test/component_fixtures/filesystem-component/src/bindings.rs new file mode 100644 index 00000000..85e0e55f --- /dev/null +++ b/test/component_fixtures/filesystem-component/src/bindings.rs @@ -0,0 +1,1246 @@ +// Generated by `wit-bindgen` 0.41.0. DO NOT EDIT! +// Options used: +// * runtime_path: "wit_bindgen_rt" +#[rustfmt::skip] +#[allow(dead_code, clippy::all)] +pub mod exports { + pub mod test { + pub mod filesystem { + #[allow(dead_code, async_fn_in_trait, unused_imports, clippy::all)] + pub mod types { + #[used] + #[doc(hidden)] + static __FORCE_SECTION_REF: fn() = super::super::super::super::__link_custom_section_describing_imports; + use super::super::super::super::_rt; + /// Simplified, focused on what WASI can actually do + #[derive(Debug)] + #[repr(transparent)] + pub struct FileHandle { + handle: _rt::Resource, + } + type _FileHandleRep = Option; + impl FileHandle { + /// Creates a new resource from the specified representation. + /// + /// This function will create a new resource handle by moving `val` onto + /// the heap and then passing that heap pointer to the component model to + /// create a handle. The owned handle is then returned as `FileHandle`. + pub fn new(val: T) -> Self { + Self::type_guard::(); + let val: _FileHandleRep = Some(val); + let ptr: *mut _FileHandleRep = _rt::Box::into_raw( + _rt::Box::new(val), + ); + unsafe { Self::from_handle(T::_resource_new(ptr.cast())) } + } + /// Gets access to the underlying `T` which represents this resource. + pub fn get(&self) -> &T { + let ptr = unsafe { &*self.as_ptr::() }; + ptr.as_ref().unwrap() + } + /// Gets mutable access to the underlying `T` which represents this + /// resource. + pub fn get_mut(&mut self) -> &mut T { + let ptr = unsafe { &mut *self.as_ptr::() }; + ptr.as_mut().unwrap() + } + /// Consumes this resource and returns the underlying `T`. + pub fn into_inner(self) -> T { + let ptr = unsafe { &mut *self.as_ptr::() }; + ptr.take().unwrap() + } + #[doc(hidden)] + pub unsafe fn from_handle(handle: u32) -> Self { + Self { + handle: unsafe { _rt::Resource::from_handle(handle) }, + } + } + #[doc(hidden)] + pub fn take_handle(&self) -> u32 { + _rt::Resource::take_handle(&self.handle) + } + #[doc(hidden)] + pub fn handle(&self) -> u32 { + _rt::Resource::handle(&self.handle) + } + #[doc(hidden)] + fn type_guard() { + use core::any::TypeId; + static mut LAST_TYPE: Option = None; + unsafe { + assert!(! cfg!(target_feature = "atomics")); + let id = TypeId::of::(); + match LAST_TYPE { + Some(ty) => { + assert!( + ty == id, "cannot use two types with this resource type" + ) + } + None => LAST_TYPE = Some(id), + } + } + } + #[doc(hidden)] + pub unsafe fn dtor(handle: *mut u8) { + Self::type_guard::(); + let _ = unsafe { + _rt::Box::from_raw(handle as *mut _FileHandleRep) + }; + } + fn as_ptr(&self) -> *mut _FileHandleRep { + FileHandle::type_guard::(); + T::_resource_rep(self.handle()).cast() + } + } + /// A borrowed version of [`FileHandle`] which represents a borrowed value + /// with the lifetime `'a`. + #[derive(Debug)] + #[repr(transparent)] + pub struct FileHandleBorrow<'a> { + rep: *mut u8, + _marker: core::marker::PhantomData<&'a FileHandle>, + } + impl<'a> FileHandleBorrow<'a> { + #[doc(hidden)] + pub unsafe fn lift(rep: usize) -> Self { + Self { + rep: rep as *mut u8, + _marker: core::marker::PhantomData, + } + } + /// Gets access to the underlying `T` in this resource. + pub fn get(&self) -> &T { + let ptr = unsafe { &mut *self.as_ptr::() }; + ptr.as_ref().unwrap() + } + fn as_ptr(&self) -> *mut _FileHandleRep { + FileHandle::type_guard::(); + self.rep.cast() + } + } + unsafe impl _rt::WasmResource for FileHandle { + #[inline] + unsafe fn drop(_handle: u32) { + #[cfg(not(target_arch = "wasm32"))] + unreachable!(); + #[cfg(target_arch = "wasm32")] + { + #[link(wasm_import_module = "[export]test:filesystem/types")] + unsafe extern "C" { + #[link_name = "[resource-drop]file-handle"] + fn drop(_: u32); + } + unsafe { drop(_handle) }; + } + } + } + #[derive(Debug)] + #[repr(transparent)] + pub struct Directory { + handle: _rt::Resource, + } + type _DirectoryRep = Option; + impl Directory { + /// Creates a new resource from the specified representation. + /// + /// This function will create a new resource handle by moving `val` onto + /// the heap and then passing that heap pointer to the component model to + /// create a handle. The owned handle is then returned as `Directory`. + pub fn new(val: T) -> Self { + Self::type_guard::(); + let val: _DirectoryRep = Some(val); + let ptr: *mut _DirectoryRep = _rt::Box::into_raw( + _rt::Box::new(val), + ); + unsafe { Self::from_handle(T::_resource_new(ptr.cast())) } + } + /// Gets access to the underlying `T` which represents this resource. + pub fn get(&self) -> &T { + let ptr = unsafe { &*self.as_ptr::() }; + ptr.as_ref().unwrap() + } + /// Gets mutable access to the underlying `T` which represents this + /// resource. + pub fn get_mut(&mut self) -> &mut T { + let ptr = unsafe { &mut *self.as_ptr::() }; + ptr.as_mut().unwrap() + } + /// Consumes this resource and returns the underlying `T`. + pub fn into_inner(self) -> T { + let ptr = unsafe { &mut *self.as_ptr::() }; + ptr.take().unwrap() + } + #[doc(hidden)] + pub unsafe fn from_handle(handle: u32) -> Self { + Self { + handle: unsafe { _rt::Resource::from_handle(handle) }, + } + } + #[doc(hidden)] + pub fn take_handle(&self) -> u32 { + _rt::Resource::take_handle(&self.handle) + } + #[doc(hidden)] + pub fn handle(&self) -> u32 { + _rt::Resource::handle(&self.handle) + } + #[doc(hidden)] + fn type_guard() { + use core::any::TypeId; + static mut LAST_TYPE: Option = None; + unsafe { + assert!(! cfg!(target_feature = "atomics")); + let id = TypeId::of::(); + match LAST_TYPE { + Some(ty) => { + assert!( + ty == id, "cannot use two types with this resource type" + ) + } + None => LAST_TYPE = Some(id), + } + } + } + #[doc(hidden)] + pub unsafe fn dtor(handle: *mut u8) { + Self::type_guard::(); + let _ = unsafe { + _rt::Box::from_raw(handle as *mut _DirectoryRep) + }; + } + fn as_ptr(&self) -> *mut _DirectoryRep { + Directory::type_guard::(); + T::_resource_rep(self.handle()).cast() + } + } + /// A borrowed version of [`Directory`] which represents a borrowed value + /// with the lifetime `'a`. + #[derive(Debug)] + #[repr(transparent)] + pub struct DirectoryBorrow<'a> { + rep: *mut u8, + _marker: core::marker::PhantomData<&'a Directory>, + } + impl<'a> DirectoryBorrow<'a> { + #[doc(hidden)] + pub unsafe fn lift(rep: usize) -> Self { + Self { + rep: rep as *mut u8, + _marker: core::marker::PhantomData, + } + } + /// Gets access to the underlying `T` in this resource. + pub fn get(&self) -> &T { + let ptr = unsafe { &mut *self.as_ptr::() }; + ptr.as_ref().unwrap() + } + fn as_ptr(&self) -> *mut _DirectoryRep { + Directory::type_guard::(); + self.rep.cast() + } + } + unsafe impl _rt::WasmResource for Directory { + #[inline] + unsafe fn drop(_handle: u32) { + #[cfg(not(target_arch = "wasm32"))] + unreachable!(); + #[cfg(target_arch = "wasm32")] + { + #[link(wasm_import_module = "[export]test:filesystem/types")] + unsafe extern "C" { + #[link_name = "[resource-drop]directory"] + fn drop(_: u32); + } + unsafe { drop(_handle) }; + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_file_handle_read_cabi( + arg0: *mut u8, + arg1: i32, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::read( + unsafe { FileHandleBorrow::lift(arg0 as u32 as usize) }.get(), + arg1 as u32, + ); + let ptr1 = (&raw mut _RET_AREA.0).cast::(); + match result0 { + Ok(e) => { + *ptr1.add(0).cast::() = (0i32) as u8; + let vec2 = (e).into_boxed_slice(); + let ptr2 = vec2.as_ptr().cast::(); + let len2 = vec2.len(); + ::core::mem::forget(vec2); + *ptr1 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len2; + *ptr1 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr2.cast_mut(); + } + Err(e) => { + *ptr1.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr1 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr1 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + }; + ptr1 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_method_file_handle_read( + arg0: *mut u8, + ) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + let base3 = l1; + let len3 = l2; + _rt::cabi_dealloc(base3, len3 * 1, 1); + } + _ => { + let l4 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l5 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l4, l5, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_file_handle_write_cabi( + arg0: *mut u8, + arg1: *mut u8, + arg2: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg2; + let result1 = T::write( + unsafe { FileHandleBorrow::lift(arg0 as u32 as usize) }.get(), + _rt::Vec::from_raw_parts(arg1.cast(), len0, len0), + ); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(e) => { + *ptr2.add(0).cast::() = (0i32) as u8; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::() = _rt::as_i32(e); + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_method_file_handle_write( + arg0: *mut u8, + ) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_file_handle_seek_cabi( + arg0: *mut u8, + arg1: i64, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::seek( + unsafe { FileHandleBorrow::lift(arg0 as u32 as usize) }.get(), + arg1 as u64, + ); + let ptr1 = (&raw mut _RET_AREA.0).cast::(); + match result0 { + Ok(e) => { + *ptr1.add(0).cast::() = (0i32) as u8; + *ptr1.add(8).cast::() = _rt::as_i64(e); + } + Err(e) => { + *ptr1.add(0).cast::() = (1i32) as u8; + let vec2 = (e.into_bytes()).into_boxed_slice(); + let ptr2 = vec2.as_ptr().cast::(); + let len2 = vec2.len(); + ::core::mem::forget(vec2); + *ptr1 + .add(8 + 1 * ::core::mem::size_of::<*const u8>()) + .cast::() = len2; + *ptr1.add(8).cast::<*mut u8>() = ptr2.cast_mut(); + } + }; + ptr1 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_method_file_handle_seek( + arg0: *mut u8, + ) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0.add(8).cast::<*mut u8>(); + let l2 = *arg0 + .add(8 + 1 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_file_handle_close_cabi( + arg0: *mut u8, + ) { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + T::close( + unsafe { FileHandleBorrow::lift(arg0 as u32 as usize) }.get(), + ); + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_directory_open_file_cabi( + arg0: *mut u8, + arg1: *mut u8, + arg2: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg2; + let bytes0 = _rt::Vec::from_raw_parts(arg1.cast(), len0, len0); + let result1 = T::open_file( + unsafe { DirectoryBorrow::lift(arg0 as u32 as usize) }.get(), + _rt::string_lift(bytes0), + ); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(e) => { + *ptr2.add(0).cast::() = (0i32) as u8; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::() = (e).take_handle() as i32; + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_method_directory_open_file< + T: GuestDirectory, + >(arg0: *mut u8) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_directory_create_file_cabi< + T: GuestDirectory, + >(arg0: *mut u8, arg1: *mut u8, arg2: usize) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg2; + let bytes0 = _rt::Vec::from_raw_parts(arg1.cast(), len0, len0); + let result1 = T::create_file( + unsafe { DirectoryBorrow::lift(arg0 as u32 as usize) }.get(), + _rt::string_lift(bytes0), + ); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(e) => { + *ptr2.add(0).cast::() = (0i32) as u8; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::() = (e).take_handle() as i32; + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_method_directory_create_file< + T: GuestDirectory, + >(arg0: *mut u8) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_directory_list_entries_cabi< + T: GuestDirectory, + >(arg0: *mut u8) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::list_entries( + unsafe { DirectoryBorrow::lift(arg0 as u32 as usize) }.get(), + ); + let ptr1 = (&raw mut _RET_AREA.0).cast::(); + match result0 { + Ok(e) => { + *ptr1.add(0).cast::() = (0i32) as u8; + let vec3 = e; + let len3 = vec3.len(); + let layout3 = _rt::alloc::Layout::from_size_align_unchecked( + vec3.len() * (2 * ::core::mem::size_of::<*const u8>()), + ::core::mem::size_of::<*const u8>(), + ); + let result3 = if layout3.size() != 0 { + let ptr = _rt::alloc::alloc(layout3).cast::(); + if ptr.is_null() { + _rt::alloc::handle_alloc_error(layout3); + } + ptr + } else { + ::core::ptr::null_mut() + }; + for (i, e) in vec3.into_iter().enumerate() { + let base = result3 + .add(i * (2 * ::core::mem::size_of::<*const u8>())); + { + let vec2 = (e.into_bytes()).into_boxed_slice(); + let ptr2 = vec2.as_ptr().cast::(); + let len2 = vec2.len(); + ::core::mem::forget(vec2); + *base + .add(::core::mem::size_of::<*const u8>()) + .cast::() = len2; + *base.add(0).cast::<*mut u8>() = ptr2.cast_mut(); + } + } + *ptr1 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr1 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = result3; + } + Err(e) => { + *ptr1.add(0).cast::() = (1i32) as u8; + let vec4 = (e.into_bytes()).into_boxed_slice(); + let ptr4 = vec4.as_ptr().cast::(); + let len4 = vec4.len(); + ::core::mem::forget(vec4); + *ptr1 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len4; + *ptr1 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr4.cast_mut(); + } + }; + ptr1 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_method_directory_list_entries< + T: GuestDirectory, + >(arg0: *mut u8) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + let base5 = l1; + let len5 = l2; + for i in 0..len5 { + let base = base5 + .add(i * (2 * ::core::mem::size_of::<*const u8>())); + { + let l3 = *base.add(0).cast::<*mut u8>(); + let l4 = *base + .add(::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l3, l4, 1); + } + } + _rt::cabi_dealloc( + base5, + len5 * (2 * ::core::mem::size_of::<*const u8>()), + ::core::mem::size_of::<*const u8>(), + ); + } + _ => { + let l6 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l7 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l6, l7, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_method_directory_delete_file_cabi< + T: GuestDirectory, + >(arg0: *mut u8, arg1: *mut u8, arg2: usize) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg2; + let bytes0 = _rt::Vec::from_raw_parts(arg1.cast(), len0, len0); + let result1 = T::delete_file( + unsafe { DirectoryBorrow::lift(arg0 as u32 as usize) }.get(), + _rt::string_lift(bytes0), + ); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(_) => { + *ptr2.add(0).cast::() = (0i32) as u8; + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_method_directory_delete_file< + T: GuestDirectory, + >(arg0: *mut u8) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_open_directory_cabi( + arg0: *mut u8, + arg1: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg1; + let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0); + let result1 = T::open_directory(_rt::string_lift(bytes0)); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(e) => { + *ptr2.add(0).cast::() = (0i32) as u8; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::() = (e).take_handle() as i32; + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_open_directory(arg0: *mut u8) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + pub trait Guest { + type FileHandle: GuestFileHandle; + type Directory: GuestDirectory; + /// Factory functions that work with preopened dirs + fn open_directory( + path: _rt::String, + ) -> Result; + } + pub trait GuestFileHandle: 'static { + #[doc(hidden)] + unsafe fn _resource_new(val: *mut u8) -> u32 + where + Self: Sized, + { + #[cfg(not(target_arch = "wasm32"))] + { + let _ = val; + unreachable!(); + } + #[cfg(target_arch = "wasm32")] + { + #[link(wasm_import_module = "[export]test:filesystem/types")] + unsafe extern "C" { + #[link_name = "[resource-new]file-handle"] + fn new(_: *mut u8) -> u32; + } + unsafe { new(val) } + } + } + #[doc(hidden)] + fn _resource_rep(handle: u32) -> *mut u8 + where + Self: Sized, + { + #[cfg(not(target_arch = "wasm32"))] + { + let _ = handle; + unreachable!(); + } + #[cfg(target_arch = "wasm32")] + { + #[link(wasm_import_module = "[export]test:filesystem/types")] + unsafe extern "C" { + #[link_name = "[resource-rep]file-handle"] + fn rep(_: u32) -> *mut u8; + } + unsafe { rep(handle) } + } + } + fn read(&self, length: u32) -> Result<_rt::Vec, _rt::String>; + fn write(&self, data: _rt::Vec) -> Result; + fn seek(&self, offset: u64) -> Result; + fn close(&self) -> (); + } + pub trait GuestDirectory: 'static { + #[doc(hidden)] + unsafe fn _resource_new(val: *mut u8) -> u32 + where + Self: Sized, + { + #[cfg(not(target_arch = "wasm32"))] + { + let _ = val; + unreachable!(); + } + #[cfg(target_arch = "wasm32")] + { + #[link(wasm_import_module = "[export]test:filesystem/types")] + unsafe extern "C" { + #[link_name = "[resource-new]directory"] + fn new(_: *mut u8) -> u32; + } + unsafe { new(val) } + } + } + #[doc(hidden)] + fn _resource_rep(handle: u32) -> *mut u8 + where + Self: Sized, + { + #[cfg(not(target_arch = "wasm32"))] + { + let _ = handle; + unreachable!(); + } + #[cfg(target_arch = "wasm32")] + { + #[link(wasm_import_module = "[export]test:filesystem/types")] + unsafe extern "C" { + #[link_name = "[resource-rep]directory"] + fn rep(_: u32) -> *mut u8; + } + unsafe { rep(handle) } + } + } + fn open_file( + &self, + path: _rt::String, + ) -> Result; + fn create_file( + &self, + path: _rt::String, + ) -> Result; + fn list_entries(&self) -> Result<_rt::Vec<_rt::String>, _rt::String>; + fn delete_file(&self, path: _rt::String) -> Result<(), _rt::String>; + } + #[doc(hidden)] + macro_rules! __export_test_filesystem_types_cabi { + ($ty:ident with_types_in $($path_to_types:tt)*) => { + const _ : () = { #[unsafe (export_name = + "test:filesystem/types#[method]file-handle.read")] unsafe extern + "C" fn export_method_file_handle_read(arg0 : * mut u8, arg1 : + i32,) -> * mut u8 { unsafe { $($path_to_types)*:: + _export_method_file_handle_read_cabi::<<$ty as + $($path_to_types)*:: Guest >::FileHandle > (arg0, arg1) } } + #[unsafe (export_name = + "cabi_post_test:filesystem/types#[method]file-handle.read")] + unsafe extern "C" fn _post_return_method_file_handle_read(arg0 : + * mut u8,) { unsafe { $($path_to_types)*:: + __post_return_method_file_handle_read::<<$ty as + $($path_to_types)*:: Guest >::FileHandle > (arg0) } } #[unsafe + (export_name = + "test:filesystem/types#[method]file-handle.write")] unsafe extern + "C" fn export_method_file_handle_write(arg0 : * mut u8, arg1 : * + mut u8, arg2 : usize,) -> * mut u8 { unsafe { + $($path_to_types)*:: _export_method_file_handle_write_cabi::<<$ty + as $($path_to_types)*:: Guest >::FileHandle > (arg0, arg1, arg2) + } } #[unsafe (export_name = + "cabi_post_test:filesystem/types#[method]file-handle.write")] + unsafe extern "C" fn _post_return_method_file_handle_write(arg0 : + * mut u8,) { unsafe { $($path_to_types)*:: + __post_return_method_file_handle_write::<<$ty as + $($path_to_types)*:: Guest >::FileHandle > (arg0) } } #[unsafe + (export_name = "test:filesystem/types#[method]file-handle.seek")] + unsafe extern "C" fn export_method_file_handle_seek(arg0 : * mut + u8, arg1 : i64,) -> * mut u8 { unsafe { $($path_to_types)*:: + _export_method_file_handle_seek_cabi::<<$ty as + $($path_to_types)*:: Guest >::FileHandle > (arg0, arg1) } } + #[unsafe (export_name = + "cabi_post_test:filesystem/types#[method]file-handle.seek")] + unsafe extern "C" fn _post_return_method_file_handle_seek(arg0 : + * mut u8,) { unsafe { $($path_to_types)*:: + __post_return_method_file_handle_seek::<<$ty as + $($path_to_types)*:: Guest >::FileHandle > (arg0) } } #[unsafe + (export_name = + "test:filesystem/types#[method]file-handle.close")] unsafe extern + "C" fn export_method_file_handle_close(arg0 : * mut u8,) { unsafe + { $($path_to_types)*:: + _export_method_file_handle_close_cabi::<<$ty as + $($path_to_types)*:: Guest >::FileHandle > (arg0) } } #[unsafe + (export_name = + "test:filesystem/types#[method]directory.open-file")] unsafe + extern "C" fn export_method_directory_open_file(arg0 : * mut u8, + arg1 : * mut u8, arg2 : usize,) -> * mut u8 { unsafe { + $($path_to_types)*:: + _export_method_directory_open_file_cabi::<<$ty as + $($path_to_types)*:: Guest >::Directory > (arg0, arg1, arg2) } } + #[unsafe (export_name = + "cabi_post_test:filesystem/types#[method]directory.open-file")] + unsafe extern "C" fn _post_return_method_directory_open_file(arg0 + : * mut u8,) { unsafe { $($path_to_types)*:: + __post_return_method_directory_open_file::<<$ty as + $($path_to_types)*:: Guest >::Directory > (arg0) } } #[unsafe + (export_name = + "test:filesystem/types#[method]directory.create-file")] unsafe + extern "C" fn export_method_directory_create_file(arg0 : * mut + u8, arg1 : * mut u8, arg2 : usize,) -> * mut u8 { unsafe { + $($path_to_types)*:: + _export_method_directory_create_file_cabi::<<$ty as + $($path_to_types)*:: Guest >::Directory > (arg0, arg1, arg2) } } + #[unsafe (export_name = + "cabi_post_test:filesystem/types#[method]directory.create-file")] + unsafe extern "C" fn + _post_return_method_directory_create_file(arg0 : * mut u8,) { + unsafe { $($path_to_types)*:: + __post_return_method_directory_create_file::<<$ty as + $($path_to_types)*:: Guest >::Directory > (arg0) } } #[unsafe + (export_name = + "test:filesystem/types#[method]directory.list-entries")] unsafe + extern "C" fn export_method_directory_list_entries(arg0 : * mut + u8,) -> * mut u8 { unsafe { $($path_to_types)*:: + _export_method_directory_list_entries_cabi::<<$ty as + $($path_to_types)*:: Guest >::Directory > (arg0) } } #[unsafe + (export_name = + "cabi_post_test:filesystem/types#[method]directory.list-entries")] + unsafe extern "C" fn + _post_return_method_directory_list_entries(arg0 : * mut u8,) { + unsafe { $($path_to_types)*:: + __post_return_method_directory_list_entries::<<$ty as + $($path_to_types)*:: Guest >::Directory > (arg0) } } #[unsafe + (export_name = + "test:filesystem/types#[method]directory.delete-file")] unsafe + extern "C" fn export_method_directory_delete_file(arg0 : * mut + u8, arg1 : * mut u8, arg2 : usize,) -> * mut u8 { unsafe { + $($path_to_types)*:: + _export_method_directory_delete_file_cabi::<<$ty as + $($path_to_types)*:: Guest >::Directory > (arg0, arg1, arg2) } } + #[unsafe (export_name = + "cabi_post_test:filesystem/types#[method]directory.delete-file")] + unsafe extern "C" fn + _post_return_method_directory_delete_file(arg0 : * mut u8,) { + unsafe { $($path_to_types)*:: + __post_return_method_directory_delete_file::<<$ty as + $($path_to_types)*:: Guest >::Directory > (arg0) } } #[unsafe + (export_name = "test:filesystem/types#open-directory")] unsafe + extern "C" fn export_open_directory(arg0 : * mut u8, arg1 : + usize,) -> * mut u8 { unsafe { $($path_to_types)*:: + _export_open_directory_cabi::<$ty > (arg0, arg1) } } #[unsafe + (export_name = "cabi_post_test:filesystem/types#open-directory")] + unsafe extern "C" fn _post_return_open_directory(arg0 : * mut + u8,) { unsafe { $($path_to_types)*:: + __post_return_open_directory::<$ty > (arg0) } } const _ : () = { + #[doc(hidden)] #[unsafe (export_name = + "test:filesystem/types#[dtor]file-handle")] + #[allow(non_snake_case)] unsafe extern "C" fn dtor(rep : * mut + u8) { unsafe { $($path_to_types)*:: FileHandle::dtor::< <$ty as + $($path_to_types)*:: Guest >::FileHandle > (rep) } } }; const _ : + () = { #[doc(hidden)] #[unsafe (export_name = + "test:filesystem/types#[dtor]directory")] + #[allow(non_snake_case)] unsafe extern "C" fn dtor(rep : * mut + u8) { unsafe { $($path_to_types)*:: Directory::dtor::< <$ty as + $($path_to_types)*:: Guest >::Directory > (rep) } } }; }; + }; + } + #[doc(hidden)] + pub(crate) use __export_test_filesystem_types_cabi; + #[repr(align(8))] + struct _RetArea( + [::core::mem::MaybeUninit< + u8, + >; 8 + 2 * ::core::mem::size_of::<*const u8>()], + ); + static mut _RET_AREA: _RetArea = _RetArea( + [::core::mem::MaybeUninit::uninit(); 8 + + 2 * ::core::mem::size_of::<*const u8>()], + ); + } + } + } +} +#[rustfmt::skip] +mod _rt { + #![allow(dead_code, clippy::all)] + use core::fmt; + use core::marker; + use core::sync::atomic::{AtomicU32, Ordering::Relaxed}; + /// A type which represents a component model resource, either imported or + /// exported into this component. + /// + /// This is a low-level wrapper which handles the lifetime of the resource + /// (namely this has a destructor). The `T` provided defines the component model + /// intrinsics that this wrapper uses. + /// + /// One of the chief purposes of this type is to provide `Deref` implementations + /// to access the underlying data when it is owned. + /// + /// This type is primarily used in generated code for exported and imported + /// resources. + #[repr(transparent)] + pub struct Resource { + handle: AtomicU32, + _marker: marker::PhantomData, + } + /// A trait which all wasm resources implement, namely providing the ability to + /// drop a resource. + /// + /// This generally is implemented by generated code, not user-facing code. + #[allow(clippy::missing_safety_doc)] + pub unsafe trait WasmResource { + /// Invokes the `[resource-drop]...` intrinsic. + unsafe fn drop(handle: u32); + } + impl Resource { + #[doc(hidden)] + pub unsafe fn from_handle(handle: u32) -> Self { + debug_assert!(handle != u32::MAX); + Self { + handle: AtomicU32::new(handle), + _marker: marker::PhantomData, + } + } + /// Takes ownership of the handle owned by `resource`. + /// + /// Note that this ideally would be `into_handle` taking `Resource` by + /// ownership. The code generator does not enable that in all situations, + /// unfortunately, so this is provided instead. + /// + /// Also note that `take_handle` is in theory only ever called on values + /// owned by a generated function. For example a generated function might + /// take `Resource` as an argument but then call `take_handle` on a + /// reference to that argument. In that sense the dynamic nature of + /// `take_handle` should only be exposed internally to generated code, not + /// to user code. + #[doc(hidden)] + pub fn take_handle(resource: &Resource) -> u32 { + resource.handle.swap(u32::MAX, Relaxed) + } + #[doc(hidden)] + pub fn handle(resource: &Resource) -> u32 { + resource.handle.load(Relaxed) + } + } + impl fmt::Debug for Resource { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("Resource").field("handle", &self.handle).finish() + } + } + impl Drop for Resource { + fn drop(&mut self) { + unsafe { + match self.handle.load(Relaxed) { + u32::MAX => {} + other => T::drop(other), + } + } + } + } + pub use alloc_crate::boxed::Box; + #[cfg(target_arch = "wasm32")] + pub fn run_ctors_once() { + wit_bindgen_rt::run_ctors_once(); + } + pub unsafe fn cabi_dealloc(ptr: *mut u8, size: usize, align: usize) { + if size == 0 { + return; + } + let layout = alloc::Layout::from_size_align_unchecked(size, align); + alloc::dealloc(ptr, layout); + } + pub use alloc_crate::vec::Vec; + pub use alloc_crate::string::String; + pub fn as_i32(t: T) -> i32 { + t.as_i32() + } + pub trait AsI32 { + fn as_i32(self) -> i32; + } + impl<'a, T: Copy + AsI32> AsI32 for &'a T { + fn as_i32(self) -> i32 { + (*self).as_i32() + } + } + impl AsI32 for i32 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for u32 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for i16 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for u16 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for i8 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for u8 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for char { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for usize { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + pub fn as_i64(t: T) -> i64 { + t.as_i64() + } + pub trait AsI64 { + fn as_i64(self) -> i64; + } + impl<'a, T: Copy + AsI64> AsI64 for &'a T { + fn as_i64(self) -> i64 { + (*self).as_i64() + } + } + impl AsI64 for i64 { + #[inline] + fn as_i64(self) -> i64 { + self as i64 + } + } + impl AsI64 for u64 { + #[inline] + fn as_i64(self) -> i64 { + self as i64 + } + } + pub unsafe fn string_lift(bytes: Vec) -> String { + if cfg!(debug_assertions) { + String::from_utf8(bytes).unwrap() + } else { + String::from_utf8_unchecked(bytes) + } + } + pub use alloc_crate::alloc; + extern crate alloc as alloc_crate; +} +/// Generates `#[unsafe(no_mangle)]` functions to export the specified type as +/// the root implementation of all generated traits. +/// +/// For more information see the documentation of `wit_bindgen::generate!`. +/// +/// ```rust +/// # macro_rules! export{ ($($t:tt)*) => (); } +/// # trait Guest {} +/// struct MyType; +/// +/// impl Guest for MyType { +/// // ... +/// } +/// +/// export!(MyType); +/// ``` +#[allow(unused_macros)] +#[doc(hidden)] +macro_rules! __export_filesystem_test_impl { + ($ty:ident) => { + self::export!($ty with_types_in self); + }; + ($ty:ident with_types_in $($path_to_types_root:tt)*) => { + $($path_to_types_root)*:: + exports::test::filesystem::types::__export_test_filesystem_types_cabi!($ty + with_types_in $($path_to_types_root)*:: exports::test::filesystem::types); + }; +} +#[doc(inline)] +pub(crate) use __export_filesystem_test_impl as export; +#[cfg(target_arch = "wasm32")] +#[unsafe( + link_section = "component-type:wit-bindgen:0.41.0:test:filesystem:filesystem-test:encoded world" +)] +#[doc(hidden)] +#[allow(clippy::octal_escapes)] +pub static __WIT_BINDGEN_COMPONENT_TYPE: [u8; 688] = *b"\ +\0asm\x0d\0\x01\0\0\x19\x16wit-component-encoding\x04\0\x07\xaa\x04\x01A\x02\x01\ +A\x02\x01B\x20\x04\0\x0bfile-handle\x03\x01\x04\0\x09directory\x03\x01\x01h\0\x01\ +p}\x01j\x01\x03\x01s\x01@\x02\x04self\x02\x06lengthy\0\x04\x04\0\x18[method]file\ +-handle.read\x01\x05\x01j\x01y\x01s\x01@\x02\x04self\x02\x04data\x03\0\x06\x04\0\ +\x19[method]file-handle.write\x01\x07\x01j\x01w\x01s\x01@\x02\x04self\x02\x06off\ +setw\0\x08\x04\0\x18[method]file-handle.seek\x01\x09\x01@\x01\x04self\x02\x01\0\x04\ +\0\x19[method]file-handle.close\x01\x0a\x01h\x01\x01i\0\x01j\x01\x0c\x01s\x01@\x02\ +\x04self\x0b\x04paths\0\x0d\x04\0\x1b[method]directory.open-file\x01\x0e\x04\0\x1d\ +[method]directory.create-file\x01\x0e\x01ps\x01j\x01\x0f\x01s\x01@\x01\x04self\x0b\ +\0\x10\x04\0\x1e[method]directory.list-entries\x01\x11\x01j\0\x01s\x01@\x02\x04s\ +elf\x0b\x04paths\0\x12\x04\0\x1d[method]directory.delete-file\x01\x13\x01i\x01\x01\ +j\x01\x14\x01s\x01@\x01\x04paths\0\x15\x04\0\x0eopen-directory\x01\x16\x04\0\x15\ +test:filesystem/types\x05\0\x04\0\x1ftest:filesystem/filesystem-test\x04\0\x0b\x15\ +\x01\0\x0ffilesystem-test\x03\0\0\0G\x09producers\x01\x0cprocessed-by\x02\x0dwit\ +-component\x070.227.1\x10wit-bindgen-rust\x060.41.0"; +#[inline(never)] +#[doc(hidden)] +pub fn __link_custom_section_describing_imports() { + wit_bindgen_rt::maybe_link_cabi_realloc(); +} diff --git a/test/component_fixtures/filesystem-component/src/lib.rs b/test/component_fixtures/filesystem-component/src/lib.rs new file mode 100644 index 00000000..64117f15 --- /dev/null +++ b/test/component_fixtures/filesystem-component/src/lib.rs @@ -0,0 +1,127 @@ +#![cfg(target_os = "wasi")] + +use std::fs::{File, OpenOptions, read_dir, remove_file}; +use std::io::{Read, Write, Seek, SeekFrom}; +use std::path::PathBuf; +use std::sync::{Arc, Mutex}; + +wit_bindgen::generate!({ + path: "wit", + world: "filesystem-test", +}); + +use crate::exports::test::filesystem::types::{ + Guest as TypesGuest, GuestDirectory, GuestFileHandle, FileHandle, Directory, +}; + +struct Component; + +pub struct MyFileHandle { + file: Arc>, + path: String, +} + +pub struct MyDirectory { + path: PathBuf, +} + +impl GuestFileHandle for MyFileHandle { + fn read(&self, length: u32) -> Result, String> { + let mut file = self.file.lock().map_err(|e| e.to_string())?; + let mut buffer = vec![0u8; length as usize]; + let bytes_read = file.read(&mut buffer).map_err(|e| format!("Read failed: {}", e))?; + buffer.truncate(bytes_read); + Ok(buffer) + } + + fn write(&self, data: Vec) -> Result { + let mut file = self.file.lock().map_err(|e| e.to_string())?; + let written = file.write(&data).map_err(|e| format!("Write failed: {}", e))?; + file.flush().map_err(|e| format!("Flush failed: {}", e))?; + Ok(written as u32) + } + + fn seek(&self, offset: u64) -> Result { + let mut file = self.file.lock().map_err(|e| e.to_string())?; + let new_pos = file.seek(SeekFrom::Start(offset)) + .map_err(|e| format!("Seek failed: {}", e))?; + Ok(new_pos) + } + + fn close(&self) { + // File will be closed when dropped + } +} + +impl GuestDirectory for MyDirectory { + fn open_file(&self, path: String) -> Result { + let full_path = self.path.join(&path); + let file = OpenOptions::new() + .read(true) + .write(true) + .open(&full_path) + .map_err(|e| format!("Open failed for {:?}: {}", full_path, e))?; + + Ok(FileHandle::new(MyFileHandle { + file: Arc::new(Mutex::new(file)), + path: path.clone(), + })) + } + + fn create_file(&self, path: String) -> Result { + let full_path = self.path.join(&path); + let file = OpenOptions::new() + .read(true) + .write(true) + .create(true) + .truncate(true) + .open(&full_path) + .map_err(|e| format!("Create failed for {:?}: {}", full_path, e))?; + + Ok(FileHandle::new(MyFileHandle { + file: Arc::new(Mutex::new(file)), + path: path.clone(), + })) + } + + fn list_entries(&self) -> Result, String> { + let entries = read_dir(&self.path) + .map_err(|e| format!("List failed for {:?}: {}", self.path, e))?; + + let mut names = Vec::new(); + for entry in entries { + let entry = entry.map_err(|e| format!("Read entry failed: {}", e))?; + if let Some(name) = entry.file_name().to_str() { + names.push(name.to_string()); + } + } + Ok(names) + } + + fn delete_file(&self, path: String) -> Result<(), String> { + let full_path = self.path.join(&path); + remove_file(&full_path) + .map_err(|e| format!("Delete failed for {:?}: {}", full_path, e)) + } +} + +impl TypesGuest for Component { + type FileHandle = MyFileHandle; + type Directory = MyDirectory; + + fn open_directory(path: String) -> Result { + // In WASI with our fixed implementation, preopened directories + // are mapped to their base names (e.g., /tmp/foo/input -> "input") + // The guest should pass the mapped name directly + + // Use the path as-is since it should already be the correct guest path + let path_buf = PathBuf::from(&path); + + // Return the directory handle - operations will fail if the path is invalid + Ok(Directory::new(MyDirectory { + path: path_buf, + })) + } +} + +export!(Component); \ No newline at end of file diff --git a/test/component_fixtures/filesystem-component/test/components/filesystem_resource_test.exs b/test/component_fixtures/filesystem-component/test/components/filesystem_resource_test.exs new file mode 100644 index 00000000..e69de29b diff --git a/test/component_fixtures/filesystem-component/wit/world.wit b/test/component_fixtures/filesystem-component/wit/world.wit new file mode 100644 index 00000000..4747352d --- /dev/null +++ b/test/component_fixtures/filesystem-component/wit/world.wit @@ -0,0 +1,25 @@ +package test:filesystem; + +interface types { + // Simplified, focused on what WASI can actually do + resource file-handle { + read: func(length: u32) -> result, string>; + write: func(data: list) -> result; + seek: func(offset: u64) -> result; + close: func(); + } + + resource directory { + open-file: func(path: string) -> result; + create-file: func(path: string) -> result; + list-entries: func() -> result, string>; + delete-file: func(path: string) -> result<_, string>; + } + + // Factory functions that work with preopened dirs + open-directory: func(path: string) -> result; +} + +world filesystem-test { + export types; +} \ No newline at end of file diff --git a/test/component_fixtures/wasi-test-component/.cargo/config.toml b/test/component_fixtures/wasi-test-component/.cargo/config.toml new file mode 100644 index 00000000..1abdcb89 --- /dev/null +++ b/test/component_fixtures/wasi-test-component/.cargo/config.toml @@ -0,0 +1,15 @@ +[target.wasm32-wasip2] +rustflags = [ + "-C", "link-arg=-zstack-size=1048576", + "-C", "target-feature=+bulk-memory", + "-C", "target-feature=+mutable-globals", + "-C", "target-feature=+sign-ext", +] + +[profile.wasi-release] +inherits = "release" +lto = "thin" +opt-level = "z" +codegen-units = 1 +strip = true +panic = "abort" \ No newline at end of file diff --git a/test/component_fixtures/wasi-test-component/Cargo.lock b/test/component_fixtures/wasi-test-component/Cargo.lock new file mode 100644 index 00000000..f76871d0 --- /dev/null +++ b/test/component_fixtures/wasi-test-component/Cargo.lock @@ -0,0 +1,759 @@ +# This file 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b/test/component_fixtures/wasi-test-component/build.sh @@ -0,0 +1,25 @@ +#!/bin/bash +set -e + +echo "Building WASI test component..." + +# Build with native wasm32-wasip2 target +cargo build --target wasm32-wasip2 --release + +# Check if the wasm file is already a component +if wasm-tools validate target/wasm32-wasip2/release/wasi_test_component.wasm --features component-model 2>/dev/null; then + echo "Module is already a component, copying to final location" + cp target/wasm32-wasip2/release/wasi_test_component.wasm target/wasm32-wasip2/release/wasi_test_component_final.wasm +else + echo "Creating component with WASI adapter..." + # Create component with reactor adapter (for library) + wasm-tools component new \ + target/wasm32-wasip2/release/wasi_test_component.wasm \ + --adapt wasi_snapshot_preview1=../wasi_snapshot_preview1.reactor.wasm \ + -o target/wasm32-wasip2/release/wasi_test_component_final.wasm +fi + +# Validate the component +wasm-tools validate target/wasm32-wasip2/release/wasi_test_component_final.wasm --features component-model + +echo "Component built successfully at target/wasm32-wasip2/release/wasi_test_component_final.wasm" \ No newline at end of file diff --git a/test/component_fixtures/wasi-test-component/src/bindings.rs b/test/component_fixtures/wasi-test-component/src/bindings.rs new file mode 100644 index 00000000..6c7593eb --- /dev/null +++ b/test/component_fixtures/wasi-test-component/src/bindings.rs @@ -0,0 +1,899 @@ +// Generated by `wit-bindgen` 0.41.0. DO NOT EDIT! +// Options used: +// * runtime_path: "wit_bindgen_rt" +#[rustfmt::skip] +#[allow(dead_code, clippy::all)] +pub mod exports { + pub mod test { + pub mod wasi_component { + #[allow(dead_code, async_fn_in_trait, unused_imports, clippy::all)] + pub mod wasi_tests { + #[used] + #[doc(hidden)] + static __FORCE_SECTION_REF: fn() = super::super::super::super::__link_custom_section_describing_imports; + use super::super::super::super::_rt; + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_filesystem_write_cabi( + arg0: *mut u8, + arg1: usize, + arg2: *mut u8, + arg3: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg1; + let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0); + let len1 = arg3; + let bytes1 = _rt::Vec::from_raw_parts(arg2.cast(), len1, len1); + let result2 = T::test_filesystem_write( + _rt::string_lift(bytes0), + _rt::string_lift(bytes1), + ); + let ptr3 = (&raw mut _RET_AREA.0).cast::(); + match result2 { + Ok(e) => { + *ptr3.add(0).cast::() = (0i32) as u8; + *ptr3 + .add(::core::mem::size_of::<*const u8>()) + .cast::() = _rt::as_i32(e); + } + Err(e) => { + *ptr3.add(0).cast::() = (1i32) as u8; + let vec4 = (e.into_bytes()).into_boxed_slice(); + let ptr4 = vec4.as_ptr().cast::(); + let len4 = vec4.len(); + ::core::mem::forget(vec4); + *ptr3 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len4; + *ptr3 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr4.cast_mut(); + } + }; + ptr3 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_test_filesystem_write( + arg0: *mut u8, + ) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_filesystem_read_cabi( + arg0: *mut u8, + arg1: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg1; + let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0); + let result1 = T::test_filesystem_read(_rt::string_lift(bytes0)); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(e) => { + *ptr2.add(0).cast::() = (0i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec4 = (e.into_bytes()).into_boxed_slice(); + let ptr4 = vec4.as_ptr().cast::(); + let len4 = vec4.len(); + ::core::mem::forget(vec4); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len4; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr4.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_test_filesystem_read( + arg0: *mut u8, + ) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + _ => { + let l3 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l4 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l3, l4, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_filesystem_delete_cabi( + arg0: *mut u8, + arg1: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg1; + let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0); + let result1 = T::test_filesystem_delete(_rt::string_lift(bytes0)); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(_) => { + *ptr2.add(0).cast::() = (0i32) as u8; + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_test_filesystem_delete( + arg0: *mut u8, + ) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_filesystem_exists_cabi( + arg0: *mut u8, + arg1: usize, + ) -> i32 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg1; + let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0); + let result1 = T::test_filesystem_exists(_rt::string_lift(bytes0)); + match result1 { + true => 1, + false => 0, + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_filesystem_list_dir_cabi( + arg0: *mut u8, + arg1: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg1; + let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0); + let result1 = T::test_filesystem_list_dir(_rt::string_lift(bytes0)); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(e) => { + *ptr2.add(0).cast::() = (0i32) as u8; + let vec4 = e; + let len4 = vec4.len(); + let layout4 = _rt::alloc::Layout::from_size_align_unchecked( + vec4.len() * (2 * ::core::mem::size_of::<*const u8>()), + ::core::mem::size_of::<*const u8>(), + ); + let result4 = if layout4.size() != 0 { + let ptr = _rt::alloc::alloc(layout4).cast::(); + if ptr.is_null() { + _rt::alloc::handle_alloc_error(layout4); + } + ptr + } else { + ::core::ptr::null_mut() + }; + for (i, e) in vec4.into_iter().enumerate() { + let base = result4 + .add(i * (2 * ::core::mem::size_of::<*const u8>())); + { + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *base + .add(::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *base.add(0).cast::<*mut u8>() = ptr3.cast_mut(); + } + } + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len4; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = result4; + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec5 = (e.into_bytes()).into_boxed_slice(); + let ptr5 = vec5.as_ptr().cast::(); + let len5 = vec5.len(); + ::core::mem::forget(vec5); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len5; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr5.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_test_filesystem_list_dir( + arg0: *mut u8, + ) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + let base5 = l1; + let len5 = l2; + for i in 0..len5 { + let base = base5 + .add(i * (2 * ::core::mem::size_of::<*const u8>())); + { + let l3 = *base.add(0).cast::<*mut u8>(); + let l4 = *base + .add(::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l3, l4, 1); + } + } + _rt::cabi_dealloc( + base5, + len5 * (2 * ::core::mem::size_of::<*const u8>()), + ::core::mem::size_of::<*const u8>(), + ); + } + _ => { + let l6 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l7 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l6, l7, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_random_bytes_cabi( + arg0: i32, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::test_random_bytes(arg0 as u32); + let ptr1 = (&raw mut _RET_AREA.0).cast::(); + let vec2 = (result0).into_boxed_slice(); + let ptr2 = vec2.as_ptr().cast::(); + let len2 = vec2.len(); + ::core::mem::forget(vec2); + *ptr1.add(::core::mem::size_of::<*const u8>()).cast::() = len2; + *ptr1.add(0).cast::<*mut u8>() = ptr2.cast_mut(); + ptr1 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_test_random_bytes(arg0: *mut u8) { + let l0 = *arg0.add(0).cast::<*mut u8>(); + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::(); + let base2 = l0; + let len2 = l1; + _rt::cabi_dealloc(base2, len2 * 1, 1); + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_random_u64_cabi() -> i64 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::test_random_u64(); + _rt::as_i64(result0) + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_clock_now_cabi() -> i64 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::test_clock_now(); + _rt::as_i64(result0) + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_clock_resolution_cabi() -> i64 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::test_clock_resolution(); + _rt::as_i64(result0) + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_get_env_cabi( + arg0: *mut u8, + arg1: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg1; + let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0); + let result1 = T::test_get_env(_rt::string_lift(bytes0)); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Some(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + None => { + *ptr2.add(0).cast::() = (0i32) as u8; + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_test_get_env(arg0: *mut u8) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_get_args_cabi() -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let result0 = T::test_get_args(); + let ptr1 = (&raw mut _RET_AREA.0).cast::(); + let vec3 = result0; + let len3 = vec3.len(); + let layout3 = _rt::alloc::Layout::from_size_align_unchecked( + vec3.len() * (2 * ::core::mem::size_of::<*const u8>()), + ::core::mem::size_of::<*const u8>(), + ); + let result3 = if layout3.size() != 0 { + let ptr = _rt::alloc::alloc(layout3).cast::(); + if ptr.is_null() { + _rt::alloc::handle_alloc_error(layout3); + } + ptr + } else { + ::core::ptr::null_mut() + }; + for (i, e) in vec3.into_iter().enumerate() { + let base = result3 + .add(i * (2 * ::core::mem::size_of::<*const u8>())); + { + let vec2 = (e.into_bytes()).into_boxed_slice(); + let ptr2 = vec2.as_ptr().cast::(); + let len2 = vec2.len(); + ::core::mem::forget(vec2); + *base + .add(::core::mem::size_of::<*const u8>()) + .cast::() = len2; + *base.add(0).cast::<*mut u8>() = ptr2.cast_mut(); + } + } + *ptr1.add(::core::mem::size_of::<*const u8>()).cast::() = len3; + *ptr1.add(0).cast::<*mut u8>() = result3; + ptr1 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_test_get_args(arg0: *mut u8) { + let l0 = *arg0.add(0).cast::<*mut u8>(); + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::(); + let base4 = l0; + let len4 = l1; + for i in 0..len4 { + let base = base4 + .add(i * (2 * ::core::mem::size_of::<*const u8>())); + { + let l2 = *base.add(0).cast::<*mut u8>(); + let l3 = *base + .add(::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l2, l3, 1); + } + } + _rt::cabi_dealloc( + base4, + len4 * (2 * ::core::mem::size_of::<*const u8>()), + ::core::mem::size_of::<*const u8>(), + ); + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_print_stdout_cabi( + arg0: *mut u8, + arg1: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg1; + let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0); + let result1 = T::test_print_stdout(_rt::string_lift(bytes0)); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(_) => { + *ptr2.add(0).cast::() = (0i32) as u8; + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_test_print_stdout(arg0: *mut u8) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn _export_test_print_stderr_cabi( + arg0: *mut u8, + arg1: usize, + ) -> *mut u8 { + #[cfg(target_arch = "wasm32")] _rt::run_ctors_once(); + let len0 = arg1; + let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0); + let result1 = T::test_print_stderr(_rt::string_lift(bytes0)); + let ptr2 = (&raw mut _RET_AREA.0).cast::(); + match result1 { + Ok(_) => { + *ptr2.add(0).cast::() = (0i32) as u8; + } + Err(e) => { + *ptr2.add(0).cast::() = (1i32) as u8; + let vec3 = (e.into_bytes()).into_boxed_slice(); + let ptr3 = vec3.as_ptr().cast::(); + let len3 = vec3.len(); + ::core::mem::forget(vec3); + *ptr2 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::() = len3; + *ptr2 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>() = ptr3.cast_mut(); + } + }; + ptr2 + } + #[doc(hidden)] + #[allow(non_snake_case)] + pub unsafe fn __post_return_test_print_stderr(arg0: *mut u8) { + let l0 = i32::from(*arg0.add(0).cast::()); + match l0 { + 0 => {} + _ => { + let l1 = *arg0 + .add(::core::mem::size_of::<*const u8>()) + .cast::<*mut u8>(); + let l2 = *arg0 + .add(2 * ::core::mem::size_of::<*const u8>()) + .cast::(); + _rt::cabi_dealloc(l1, l2, 1); + } + } + } + pub trait Guest { + /// Test filesystem operations + fn test_filesystem_write( + path: _rt::String, + content: _rt::String, + ) -> Result; + fn test_filesystem_read( + path: _rt::String, + ) -> Result<_rt::String, _rt::String>; + fn test_filesystem_delete( + path: _rt::String, + ) -> Result<(), _rt::String>; + fn test_filesystem_exists(path: _rt::String) -> bool; + fn test_filesystem_list_dir( + path: _rt::String, + ) -> Result<_rt::Vec<_rt::String>, _rt::String>; + /// Test random operations + fn test_random_bytes(len: u32) -> _rt::Vec; + fn test_random_u64() -> u64; + /// Test clock operations + fn test_clock_now() -> u64; + /// nanoseconds since epoch + fn test_clock_resolution() -> u64; + /// clock resolution in nanoseconds + /// Test environment operations + fn test_get_env(key: _rt::String) -> Option<_rt::String>; + fn test_get_args() -> _rt::Vec<_rt::String>; + /// Test stdio operations + fn test_print_stdout( + message: _rt::String, + ) -> Result<(), _rt::String>; + fn test_print_stderr( + message: _rt::String, + ) -> Result<(), _rt::String>; + } + #[doc(hidden)] + macro_rules! __export_test_wasi_component_wasi_tests_cabi { + ($ty:ident with_types_in $($path_to_types:tt)*) => { + const _ : () = { #[unsafe (export_name = + "test:wasi-component/wasi-tests#test-filesystem-write")] unsafe + extern "C" fn export_test_filesystem_write(arg0 : * mut u8, arg1 + : usize, arg2 : * mut u8, arg3 : usize,) -> * mut u8 { unsafe { + $($path_to_types)*:: _export_test_filesystem_write_cabi::<$ty > + (arg0, arg1, arg2, arg3) } } #[unsafe (export_name = + "cabi_post_test:wasi-component/wasi-tests#test-filesystem-write")] + unsafe extern "C" fn _post_return_test_filesystem_write(arg0 : * + mut u8,) { unsafe { $($path_to_types)*:: + __post_return_test_filesystem_write::<$ty > (arg0) } } #[unsafe + (export_name = + "test:wasi-component/wasi-tests#test-filesystem-read")] unsafe + extern "C" fn export_test_filesystem_read(arg0 : * mut u8, arg1 : + usize,) -> * mut u8 { unsafe { $($path_to_types)*:: + _export_test_filesystem_read_cabi::<$ty > (arg0, arg1) } } + #[unsafe (export_name = + "cabi_post_test:wasi-component/wasi-tests#test-filesystem-read")] + unsafe extern "C" fn _post_return_test_filesystem_read(arg0 : * + mut u8,) { unsafe { $($path_to_types)*:: + __post_return_test_filesystem_read::<$ty > (arg0) } } #[unsafe + (export_name = + "test:wasi-component/wasi-tests#test-filesystem-delete")] unsafe + extern "C" fn export_test_filesystem_delete(arg0 : * mut u8, arg1 + : usize,) -> * mut u8 { unsafe { $($path_to_types)*:: + _export_test_filesystem_delete_cabi::<$ty > (arg0, arg1) } } + #[unsafe (export_name = + "cabi_post_test:wasi-component/wasi-tests#test-filesystem-delete")] + unsafe extern "C" fn _post_return_test_filesystem_delete(arg0 : * + mut u8,) { unsafe { $($path_to_types)*:: + __post_return_test_filesystem_delete::<$ty > (arg0) } } #[unsafe + (export_name = + "test:wasi-component/wasi-tests#test-filesystem-exists")] unsafe + extern "C" fn export_test_filesystem_exists(arg0 : * mut u8, arg1 + : usize,) -> i32 { unsafe { $($path_to_types)*:: + _export_test_filesystem_exists_cabi::<$ty > (arg0, arg1) } } + #[unsafe (export_name = + "test:wasi-component/wasi-tests#test-filesystem-list-dir")] + unsafe extern "C" fn export_test_filesystem_list_dir(arg0 : * mut + u8, arg1 : usize,) -> * mut u8 { unsafe { $($path_to_types)*:: + _export_test_filesystem_list_dir_cabi::<$ty > (arg0, arg1) } } + #[unsafe (export_name = + "cabi_post_test:wasi-component/wasi-tests#test-filesystem-list-dir")] + unsafe extern "C" fn _post_return_test_filesystem_list_dir(arg0 : + * mut u8,) { unsafe { $($path_to_types)*:: + __post_return_test_filesystem_list_dir::<$ty > (arg0) } } + #[unsafe (export_name = + "test:wasi-component/wasi-tests#test-random-bytes")] unsafe + extern "C" fn export_test_random_bytes(arg0 : i32,) -> * mut u8 { + unsafe { $($path_to_types)*:: + _export_test_random_bytes_cabi::<$ty > (arg0) } } #[unsafe + (export_name = + "cabi_post_test:wasi-component/wasi-tests#test-random-bytes")] + unsafe extern "C" fn _post_return_test_random_bytes(arg0 : * mut + u8,) { unsafe { $($path_to_types)*:: + __post_return_test_random_bytes::<$ty > (arg0) } } #[unsafe + (export_name = "test:wasi-component/wasi-tests#test-random-u64")] + unsafe extern "C" fn export_test_random_u64() -> i64 { unsafe { + $($path_to_types)*:: _export_test_random_u64_cabi::<$ty > () } } + #[unsafe (export_name = + "test:wasi-component/wasi-tests#test-clock-now")] unsafe extern + "C" fn export_test_clock_now() -> i64 { unsafe { + $($path_to_types)*:: _export_test_clock_now_cabi::<$ty > () } } + #[unsafe (export_name = + "test:wasi-component/wasi-tests#test-clock-resolution")] unsafe + extern "C" fn export_test_clock_resolution() -> i64 { unsafe { + $($path_to_types)*:: _export_test_clock_resolution_cabi::<$ty > + () } } #[unsafe (export_name = + "test:wasi-component/wasi-tests#test-get-env")] unsafe extern "C" + fn export_test_get_env(arg0 : * mut u8, arg1 : usize,) -> * mut + u8 { unsafe { $($path_to_types)*:: + _export_test_get_env_cabi::<$ty > (arg0, arg1) } } #[unsafe + (export_name = + "cabi_post_test:wasi-component/wasi-tests#test-get-env")] unsafe + extern "C" fn _post_return_test_get_env(arg0 : * mut u8,) { + unsafe { $($path_to_types)*:: __post_return_test_get_env::<$ty > + (arg0) } } #[unsafe (export_name = + "test:wasi-component/wasi-tests#test-get-args")] unsafe extern + "C" fn export_test_get_args() -> * mut u8 { unsafe { + $($path_to_types)*:: _export_test_get_args_cabi::<$ty > () } } + #[unsafe (export_name = + "cabi_post_test:wasi-component/wasi-tests#test-get-args")] unsafe + extern "C" fn _post_return_test_get_args(arg0 : * mut u8,) { + unsafe { $($path_to_types)*:: __post_return_test_get_args::<$ty > + (arg0) } } #[unsafe (export_name = + "test:wasi-component/wasi-tests#test-print-stdout")] unsafe + extern "C" fn export_test_print_stdout(arg0 : * mut u8, arg1 : + usize,) -> * mut u8 { unsafe { $($path_to_types)*:: + _export_test_print_stdout_cabi::<$ty > (arg0, arg1) } } #[unsafe + (export_name = + "cabi_post_test:wasi-component/wasi-tests#test-print-stdout")] + unsafe extern "C" fn _post_return_test_print_stdout(arg0 : * mut + u8,) { unsafe { $($path_to_types)*:: + __post_return_test_print_stdout::<$ty > (arg0) } } #[unsafe + (export_name = + "test:wasi-component/wasi-tests#test-print-stderr")] unsafe + extern "C" fn export_test_print_stderr(arg0 : * mut u8, arg1 : + usize,) -> * mut u8 { unsafe { $($path_to_types)*:: + _export_test_print_stderr_cabi::<$ty > (arg0, arg1) } } #[unsafe + (export_name = + "cabi_post_test:wasi-component/wasi-tests#test-print-stderr")] + unsafe extern "C" fn _post_return_test_print_stderr(arg0 : * mut + u8,) { unsafe { $($path_to_types)*:: + __post_return_test_print_stderr::<$ty > (arg0) } } }; + }; + } + #[doc(hidden)] + pub(crate) use __export_test_wasi_component_wasi_tests_cabi; + #[cfg_attr(target_pointer_width = "64", repr(align(8)))] + #[cfg_attr(target_pointer_width = "32", repr(align(4)))] + struct _RetArea( + [::core::mem::MaybeUninit< + u8, + >; 3 * ::core::mem::size_of::<*const u8>()], + ); + static mut _RET_AREA: _RetArea = _RetArea( + [::core::mem::MaybeUninit::uninit(); 3 + * ::core::mem::size_of::<*const u8>()], + ); + } + } + } +} +#[rustfmt::skip] +mod _rt { + #![allow(dead_code, clippy::all)] + #[cfg(target_arch = "wasm32")] + pub fn run_ctors_once() { + wit_bindgen_rt::run_ctors_once(); + } + pub use alloc_crate::vec::Vec; + pub unsafe fn string_lift(bytes: Vec) -> String { + if cfg!(debug_assertions) { + String::from_utf8(bytes).unwrap() + } else { + String::from_utf8_unchecked(bytes) + } + } + pub fn as_i32(t: T) -> i32 { + t.as_i32() + } + pub trait AsI32 { + fn as_i32(self) -> i32; + } + impl<'a, T: Copy + AsI32> AsI32 for &'a T { + fn as_i32(self) -> i32 { + (*self).as_i32() + } + } + impl AsI32 for i32 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for u32 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for i16 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for u16 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for i8 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for u8 { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for char { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + impl AsI32 for usize { + #[inline] + fn as_i32(self) -> i32 { + self as i32 + } + } + pub unsafe fn cabi_dealloc(ptr: *mut u8, size: usize, align: usize) { + if size == 0 { + return; + } + let layout = alloc::Layout::from_size_align_unchecked(size, align); + alloc::dealloc(ptr, layout); + } + pub use alloc_crate::string::String; + pub use alloc_crate::alloc; + pub fn as_i64(t: T) -> i64 { + t.as_i64() + } + pub trait AsI64 { + fn as_i64(self) -> i64; + } + impl<'a, T: Copy + AsI64> AsI64 for &'a T { + fn as_i64(self) -> i64 { + (*self).as_i64() + } + } + impl AsI64 for i64 { + #[inline] + fn as_i64(self) -> i64 { + self as i64 + } + } + impl AsI64 for u64 { + #[inline] + fn as_i64(self) -> i64 { + self as i64 + } + } + extern crate alloc as alloc_crate; +} +/// Generates `#[unsafe(no_mangle)]` functions to export the specified type as +/// the root implementation of all generated traits. +/// +/// For more information see the documentation of `wit_bindgen::generate!`. +/// +/// ```rust +/// # macro_rules! export{ ($($t:tt)*) => (); } +/// # trait Guest {} +/// struct MyType; +/// +/// impl Guest for MyType { +/// // ... +/// } +/// +/// export!(MyType); +/// ``` +#[allow(unused_macros)] +#[doc(hidden)] +macro_rules! __export_wasi_test_impl { + ($ty:ident) => { + self::export!($ty with_types_in self); + }; + ($ty:ident with_types_in $($path_to_types_root:tt)*) => { + $($path_to_types_root)*:: + exports::test::wasi_component::wasi_tests::__export_test_wasi_component_wasi_tests_cabi!($ty + with_types_in $($path_to_types_root)*:: + exports::test::wasi_component::wasi_tests); + }; +} +#[doc(inline)] +pub(crate) use __export_wasi_test_impl as export; +#[cfg(target_arch = "wasm32")] +#[unsafe( + link_section = "component-type:wit-bindgen:0.41.0:test:wasi-component:wasi-test:encoded world" +)] +#[doc(hidden)] +#[allow(clippy::octal_escapes)] +pub static __WIT_BINDGEN_COMPONENT_TYPE: [u8; 646] = *b"\ +\0asm\x0d\0\x01\0\0\x19\x16wit-component-encoding\x04\0\x07\x86\x04\x01A\x02\x01\ +A\x02\x01B\x1e\x01j\x01y\x01s\x01@\x02\x04paths\x07contents\0\0\x04\0\x15test-fi\ +lesystem-write\x01\x01\x01j\x01s\x01s\x01@\x01\x04paths\0\x02\x04\0\x14test-file\ +system-read\x01\x03\x01j\0\x01s\x01@\x01\x04paths\0\x04\x04\0\x16test-filesystem\ +-delete\x01\x05\x01@\x01\x04paths\0\x7f\x04\0\x16test-filesystem-exists\x01\x06\x01\ +ps\x01j\x01\x07\x01s\x01@\x01\x04paths\0\x08\x04\0\x18test-filesystem-list-dir\x01\ +\x09\x01p}\x01@\x01\x03leny\0\x0a\x04\0\x11test-random-bytes\x01\x0b\x01@\0\0w\x04\ +\0\x0ftest-random-u64\x01\x0c\x04\0\x0etest-clock-now\x01\x0c\x04\0\x15test-cloc\ +k-resolution\x01\x0c\x01ks\x01@\x01\x03keys\0\x0d\x04\0\x0ctest-get-env\x01\x0e\x01\ +@\0\0\x07\x04\0\x0dtest-get-args\x01\x0f\x01@\x01\x07messages\0\x04\x04\0\x11tes\ +t-print-stdout\x01\x10\x04\0\x11test-print-stderr\x01\x10\x04\0\x1etest:wasi-com\ +ponent/wasi-tests\x05\0\x04\0\x1dtest:wasi-component/wasi-test\x04\0\x0b\x0f\x01\ +\0\x09wasi-test\x03\0\0\0G\x09producers\x01\x0cprocessed-by\x02\x0dwit-component\ +\x070.227.1\x10wit-bindgen-rust\x060.41.0"; +#[inline(never)] +#[doc(hidden)] +pub fn __link_custom_section_describing_imports() { + wit_bindgen_rt::maybe_link_cabi_realloc(); +} diff --git a/test/component_fixtures/wasi-test-component/src/lib.rs b/test/component_fixtures/wasi-test-component/src/lib.rs new file mode 100644 index 00000000..9b48f5d2 --- /dev/null +++ b/test/component_fixtures/wasi-test-component/src/lib.rs @@ -0,0 +1,152 @@ +#![cfg(target_os = "wasi")] + +wit_bindgen::generate!({ + path: "wit", + world: "wasi-test", +}); + +use exports::test::wasi_component::wasi_tests::Guest; +use std::fs; +use std::path::Path; +use std::time::{SystemTime, UNIX_EPOCH}; +use std::env; +use std::io::{self, Write}; + +struct Component; + +impl Guest for Component { + fn test_filesystem_write(path: String, content: String) -> Result { + // Try to write to the preopened directory + // First try with "wasi_test" prefix (our mapped name) + let wasi_path = format!("wasi_test/{}", path); + let result = fs::write(&wasi_path, &content); + + // If that fails, try the path as-is (for backwards compatibility) + let result = if result.is_err() { + fs::write(&path, &content) + } else { + result + }; + + result.map_err(|e| format!("Failed to write file: {}", e))?; + Ok(content.len() as u32) + } + + fn test_filesystem_read(path: String) -> Result { + // Try to read from the preopened directory + let wasi_path = format!("wasi_test/{}", path); + let result = fs::read_to_string(&wasi_path); + + // If that fails, try the path as-is + if result.is_err() { + fs::read_to_string(&path) + .map_err(|e| format!("Failed to read file: {}", e)) + } else { + result.map_err(|e| format!("Failed to read file: {}", e)) + } + } + + fn test_filesystem_delete(path: String) -> Result<(), String> { + // Try to delete from the preopened directory + let wasi_path = format!("wasi_test/{}", path); + let result = fs::remove_file(&wasi_path); + + // If that fails, try the path as-is + if result.is_err() { + fs::remove_file(&path) + .map_err(|e| format!("Failed to delete file: {}", e)) + } else { + result.map_err(|e| format!("Failed to delete file: {}", e)) + } + } + + fn test_filesystem_exists(path: String) -> bool { + // Check both paths + let wasi_path = format!("wasi_test/{}", path); + Path::new(&wasi_path).exists() || Path::new(&path).exists() + } + + fn test_filesystem_list_dir(path: String) -> Result, String> { + // Try with wasi_test prefix first + let dir_path_string = if path.is_empty() || path == "." { + "wasi_test".to_string() + } else if path.starts_with("wasi_test/") { + path + } else { + format!("wasi_test/{}", path) + }; + + let entries = fs::read_dir(Path::new(&dir_path_string)) + .map_err(|e| format!("Failed to read directory: {}", e))?; + + let mut names = Vec::new(); + for entry in entries { + let entry = entry.map_err(|e| format!("Failed to read entry: {}", e))?; + let name = entry.file_name() + .into_string() + .map_err(|_| "Invalid UTF-8 in filename".to_string())?; + names.push(name); + } + + Ok(names) + } + + fn test_random_bytes(len: u32) -> Vec { + // Use a simple PRNG for deterministic testing, or read from /dev/random in real WASI + let mut bytes = vec![0u8; len as usize]; + + // In WASI, we can use getrandom (which std uses internally) + if let Ok(_) = getrandom::getrandom(&mut bytes) { + bytes + } else { + // Fallback to a simple pseudo-random generator + for i in 0..len as usize { + bytes[i] = ((i * 7 + 13) % 256) as u8; + } + bytes + } + } + + fn test_random_u64() -> u64 { + let bytes = Self::test_random_bytes(8); + u64::from_le_bytes([ + bytes[0], bytes[1], bytes[2], bytes[3], + bytes[4], bytes[5], bytes[6], bytes[7], + ]) + } + + fn test_clock_now() -> u64 { + SystemTime::now() + .duration_since(UNIX_EPOCH) + .unwrap_or_default() + .as_nanos() as u64 + } + + fn test_clock_resolution() -> u64 { + // Typical resolution is 1 microsecond (1000 nanoseconds) + // This is platform-dependent + 1000 + } + + fn test_get_env(key: String) -> Option { + env::var(&key).ok() + } + + fn test_get_args() -> Vec { + env::args().collect() + } + + fn test_print_stdout(message: String) -> Result<(), String> { + print!("{}", message); + io::stdout().flush() + .map_err(|e| format!("Failed to flush stdout: {}", e)) + } + + fn test_print_stderr(message: String) -> Result<(), String> { + eprint!("{}", message); + io::stderr().flush() + .map_err(|e| format!("Failed to flush stderr: {}", e)) + } +} + +export!(Component); \ No newline at end of file diff --git a/test/component_fixtures/wasi-test-component/wit/world.wit b/test/component_fixtures/wasi-test-component/wit/world.wit new file mode 100644 index 00000000..c6e82143 --- /dev/null +++ b/test/component_fixtures/wasi-test-component/wit/world.wit @@ -0,0 +1,30 @@ +package test:wasi-component; + +interface wasi-tests { + // Test filesystem operations + test-filesystem-write: func(path: string, content: string) -> result; + test-filesystem-read: func(path: string) -> result; + test-filesystem-delete: func(path: string) -> result<_, string>; + test-filesystem-exists: func(path: string) -> bool; + test-filesystem-list-dir: func(path: string) -> result, string>; + + // Test random operations + test-random-bytes: func(len: u32) -> list; + test-random-u64: func() -> u64; + + // Test clock operations + test-clock-now: func() -> u64; // nanoseconds since epoch + test-clock-resolution: func() -> u64; // clock resolution in nanoseconds + + // Test environment operations + test-get-env: func(key: string) -> option; + test-get-args: func() -> list; + + // Test stdio operations + test-print-stdout: func(message: string) -> result<_, string>; + test-print-stderr: func(message: string) -> result<_, string>; +} + +world wasi-test { + export wasi-tests; +} \ No newline at end of file diff --git a/test/component_fixtures/wasi_p2_test/build.sh b/test/component_fixtures/wasi_p2_test/build.sh deleted file mode 100755 index ce2218eb..00000000 --- a/test/component_fixtures/wasi_p2_test/build.sh +++ /dev/null @@ -1 +0,0 @@ -npx @bytecodealliance/jco componentize -w wasi-p2-test.wit -o wasi-p2-test.wasm wasi-p2-test.js diff --git a/test/component_fixtures/wasi_p2_test/wasi-p2-test.js b/test/component_fixtures/wasi_p2_test/wasi-p2-test.js deleted file mode 100644 index c70e1aaa..00000000 --- a/test/component_fixtures/wasi_p2_test/wasi-p2-test.js +++ /dev/null @@ -1,6 +0,0 @@ -export async function getTime() { - const response = await fetch('http://worldtimeapi.org/api/timezone/America/New_York'); - const result = await response.json(); - console.log(result); - return result['utc_datetime']; -} diff --git a/test/component_fixtures/wasi_p2_test/wasi-p2-test.wasm b/test/component_fixtures/wasi_p2_test/wasi-p2-test.wasm deleted file mode 100644 index 83464f04a044237b05320480501b984194bcd3c9..0000000000000000000000000000000000000000 GIT binary patch literal 0 HcmV?d00001 literal 10654751 zcmcG$1z;Q3nlC;ijli-cqtIfRGb{(zfen@rfqra*2Q19E)jXY700*b`L^Hlg}hK&CUBy} 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