.clangd

# https://clangd.llvm.org/config

# Apply a config conditionally to all C files
If:
  PathMatch: .*\.(c|h)$

---

# Apply a config conditionally to all C++ files
If:
  PathMatch: .*\.(c|h)pp

---

# Apply a config conditionally to all CUDA files
If:
  PathMatch: .*\.cuh?
CompileFlags:
  Add:
    # Allow variadic CUDA functions
    - "-Xclang=-fcuda-allow-variadic-functions"

---

# Use clang++ in CUDA mode to provide intellisense for files with `nvexec` in their path
If:
  PathMatch: (include|examples|test)/nvexec.*
CompileFlags:
  Compiler: clang++
  Add:
    - "-x"
    - "cuda"
    - "-std=gnu++20"
    - "-Wno-unknown-cuda-version"

---

# Tweak the clangd parse settings for all files
CompileFlags:
  CompilationDatabase: .
  Add:
    # report all errors
    - "-ferror-limit=0"
    - "-fmacro-backtrace-limit=0"
    - "-ftemplate-backtrace-limit=0"
  Remove:
    - "-stdpar*"
    # strip CUDA fatbin args
    - "-Xfatbin*"
    - "-gpu=*"
    - "--diag_suppress*"
    # strip CUDA arch flags
    - "-gencode*"
    - "--generate-code*"
    # strip gcc's -fcoroutines
    - -fcoroutines
    # strip nvc++ flags unknown to clang
    - "-ftemplate-backtrace-limit"
    # strip CUDA flags unknown to clang
    - "-ccbin*"
    - "--compiler-options*"
    - "--expt-extended-lambda"
    - "--expt-relaxed-constexpr"
    - "-forward-unknown-to-host-compiler"
    - "-Werror=cross-execution-space-call"
Diagnostics:
  Suppress:
    - "variadic_device_fn"
    - "attributes_not_allowed"
    # The NVHPC version of _NVCXX_EXPAND_PACK macro triggers this clang error.
    # Temporarily suppressing it, but should probably fix
    - "template_param_shadow"