refactor!: extract framework core to cot-core

Cargo.toml

@@ -4,6 +4,7 @@ members = [
     "cot-cli",
     "cot-codegen",
     "cot-macros",
+    "cot-core",
     # Examples
     "examples/admin",
     "examples/custom-error-pages",
@@ -76,6 +77,7 @@ clap-verbosity-flag = { version = "3", default-features = false }
 clap_complete = "4"
 clap_mangen = "0.2.31"
 cot = { version = "0.4.0", path = "cot" }
+cot_core = { version = "0.4.0", path = "cot-core" }
 cot_codegen = { version = "0.4.0", path = "cot-codegen" }
 cot_macros = { version = "0.4.0", path = "cot-macros" }
 criterion = "0.8"

cot-core/Cargo.toml

@@ -0,0 +1,49 @@
+[package]
+name = "cot_core"
+version = "0.4.0"
+description = "The Rust web framework for lazy developers - framework core."
+categories = ["web-programming", "web-programming::http-server", "network-programming"]
+edition.workspace = true
+rust-version.workspace = true
+license.workspace = true
+homepage.workspace = true
+repository.workspace = true
+keywords.workspace = true
+readme.workspace = true
+authors.workspace = true
+
+[lints]
+workspace = true
+
+[dependencies]
+http.workspace = true
+derive_more = { workspace = true, features = ["debug", "deref", "display", "from"] }
+thiserror.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+backtrace.workspace = true
+bytes.workspace = true
+futures-core.workspace = true
+http-body.workspace = true
+http-body-util.workspace = true
+sync_wrapper.workspace = true
+axum.workspace = true
+cot_macros.workspace = true
+askama = { workspace = true, features = ["alloc"] }
+tower-sessions.workspace = true
+serde_path_to_error.workspace = true
+indexmap.workspace = true
+serde_html_form.workspace = true
+form_urlencoded.workspace = true
+tower.workspace = true
+futures-util.workspace = true
+
+[dev-dependencies]
+async-stream.workspace = true
+cot = { workspace = true, features = ["test"] }
+futures.workspace = true
+tokio.workspace = true
+
+[features]
+default = []
+json = []

cot/src/body.rs → cot-core/src/body.rs

@@ -1,3 +1,8 @@
+//! HTTP body type.
+//!
+//! This module provides the [`Body`] type for representing HTTP bodies,
+//! supporting both fixed in-memory buffers and streaming data sources.
+
 use std::error::Error as StdError;
 use std::fmt::{Debug, Formatter};
 use std::pin::Pin;
@@ -9,7 +14,7 @@ use http_body::{Frame, SizeHint};
 use http_body_util::combinators::BoxBody;
 use sync_wrapper::SyncWrapper;
 
-use crate::error::error_impl::impl_into_cot_error;
+use crate::error::impl_into_cot_error;
 use crate::{Error, Result};
 
 /// A type that represents an HTTP request or response body.
@@ -166,7 +171,7 @@ impl Body {
     }
 
     #[must_use]
-    pub(crate) fn axum(inner: axum::body::Body) -> Self {
+    pub fn axum(inner: axum::body::Body) -> Self {
         Self::new(BodyInner::Axum(SyncWrapper::new(inner)))
     }
 
@@ -261,9 +266,6 @@ impl_into_cot_error!(ReadRequestBody, BAD_REQUEST);
 
 #[cfg(test)]
 mod tests {
-    use std::pin::Pin;
-    use std::task::{Context, Poll};
-
     use futures::stream;
     use http_body::Body as HttpBody;
 

cot-core/src/error.rs

@@ -0,0 +1,14 @@
+//! Error handling types and utilities for Cot applications.
+//!
+//! This module provides error types, error handlers, and utilities for
+//! handling various types of errors that can occur in Cot applications,
+//! including 404 Not Found errors, uncaught panics, and custom error pages.
+
+pub mod backtrace;
+pub(crate) mod error_impl;
+mod method_not_allowed;
+mod uncaught_panic;
+
+pub use error_impl::{Error, impl_into_cot_error};
+pub use method_not_allowed::MethodNotAllowed;
+pub use uncaught_panic::UncaughtPanic;

cot/src/error/backtrace.rs → cot-core/src/error/backtrace.rs

@@ -1,7 +1,8 @@
 // inline(never) is added to make sure there is a separate frame for this
 // function so that it can be used to find the start of the backtrace.
 #[inline(never)]
-pub(crate) fn __cot_create_backtrace() -> Backtrace {
+#[must_use]
+pub fn __cot_create_backtrace() -> Backtrace {
     let mut backtrace = Vec::new();
     let mut start = false;
     backtrace::trace(|frame| {
@@ -21,19 +22,19 @@ pub(crate) fn __cot_create_backtrace() -> Backtrace {
 }
 
 #[derive(Debug, Clone)]
-pub(crate) struct Backtrace {
+pub struct Backtrace {
     frames: Vec<StackFrame>,
 }
 
 impl Backtrace {
     #[must_use]
-    pub(crate) fn frames(&self) -> &[StackFrame] {
+    pub fn frames(&self) -> &[StackFrame] {
         &self.frames
     }
 }
 
 #[derive(Debug, Clone)]
-pub(crate) struct StackFrame {
+pub struct StackFrame {
     symbol_name: Option<String>,
     filename: Option<String>,
     lineno: Option<u32>,
@@ -42,15 +43,15 @@ pub(crate) struct StackFrame {
 
 impl StackFrame {
     #[must_use]
-    pub(crate) fn symbol_name(&self) -> String {
+    pub fn symbol_name(&self) -> String {
         self.symbol_name
             .as_deref()
             .unwrap_or("<unknown>")
             .to_string()
     }
 
     #[must_use]
-    pub(crate) fn location(&self) -> String {
+    pub fn location(&self) -> String {
         if let Some(filename) = self.filename.as_deref() {
             let mut s = filename.to_owned();
 

cot/src/error/error_impl.rs → cot-core/src/error/error_impl.rs

@@ -8,7 +8,6 @@ use crate::StatusCode;
 // Need to rename Backtrace to CotBacktrace, because otherwise it triggers special behavior
 // in the thiserror library
 use crate::error::backtrace::{__cot_create_backtrace, Backtrace as CotBacktrace};
-use crate::error::not_found::NotFound;
 
 /// An error that can occur while using Cot.
 pub struct Error {
@@ -151,46 +150,6 @@ impl Error {
         Self::internal(error)
     }
 
-    /// Create a new "404 Not Found" error without a message.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use cot::Error;
-    ///
-    /// let error = Error::not_found();
-    /// ```
-    #[must_use]
-    #[deprecated(
-        note = "Use `cot::Error::from(cot::error::NotFound::new())` instead",
-        since = "0.4.0"
-    )]
-    pub fn not_found() -> Self {
-        Self::from(NotFound::new())
-    }
-
-    /// Create a new "404 Not Found" error with a message.
-    ///
-    /// Note that the message is only displayed when Cot's debug mode is
-    /// enabled. It will not be exposed to the user in production.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use cot::Error;
-    ///
-    /// let id = 123;
-    /// let error = Error::not_found_message(format!("User with id={id} not found"));
-    /// ```
-    #[must_use]
-    #[deprecated(
-        note = "Use `cot::Error::from(cot::error::NotFound::with_message())` instead",
-        since = "0.4.0"
-    )]
-    pub fn not_found_message(message: String) -> Self {
-        Self::from(NotFound::with_message(message))
-    }
-
     /// Returns the HTTP status code associated with this error.
     ///
     /// This method returns the appropriate HTTP status code that should be
@@ -216,7 +175,7 @@ impl Error {
     }
 
     #[must_use]
-    pub(crate) fn backtrace(&self) -> &CotBacktrace {
+    pub fn backtrace(&self) -> &CotBacktrace {
         &self.repr.backtrace
     }
 
@@ -319,6 +278,7 @@ impl From<Error> for askama::Error {
     }
 }
 
+#[macro_export]
 macro_rules! impl_into_cot_error {
     ($error_ty:ty) => {
         impl From<$error_ty> for $crate::Error {
@@ -335,7 +295,7 @@ macro_rules! impl_into_cot_error {
         }
     };
 }
-pub(crate) use impl_into_cot_error;
+pub use impl_into_cot_error;
 
 #[derive(Debug, thiserror::Error)]
 #[error("failed to render template: {0}")]