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Completion and Diagnostic for C/C++/Objective-C using Clang

Project README

C/C++ Clang Command Adapter

Completion and Diagnostic for C/C++/Objective-C using Clang command.

Important Notes

Clang project officialy starts to implement Language Server named clangd. (https://github.com/llvm-mirror/clang-tools-extra/tree/master/clangd)

This extension was renamed to C/C++ Clang Command Adapter to avoid confusion, because this extension is unofficial and only parse output of clang command.

Requirements

  • Install Clang
    • For Max OS X, Clang is installed with Xcode Command Line Tools and PATH is configured automatically.
  • Configure the PATH environment variable so that you can execute clang command.
    • or specify clang.executable configuration (See the next section for detail)

Configuration

You can use configuration interface of Visual Studio Code. (Press F1 and type User Settings or Workspace Settings)

Common

  • clang.executable: Clang command or the path to the Clang executable (default: clang)
  • clang.cflags, clang.cxxflags, clang.objcflags: Compiler Options for C/C++/Objective-C

Completion

  • clang.completion.enable: Enable/disable completion feature (default: true)
  • clang.completion.maxBuffer: Tolerable size of clang output for completion (default: 8 * 1024 * 1024 bytes)
  • clang.completion.triggerChars: Trigger completion when the user types one of the characters (default: [".", ":", ">"])

Diagnostic

  • clang.diagnostic.enable: Enable/disable diagnostic feature (default: true)
  • clang.diagnostic.maxBuffer: Tolerable size of clang output for diagnostic. (default: 256 * 1024 bytes)
  • clang.diagnostic.delay: The delay in millisecond after which diagnostic starts (default: 500)

Variables

Configurations support some variables which are available in tasks.json. They can be used inside of strings (e.g. "-I${workspaceRoot}/include")

  • ${workspaceRoot}
  • ${cwd}
  • ${env.ENVIRONMENT_VARIABLE}

Note

Since version 0.2.0, clang.diagnosticDelay, clang.enableCompletion, clang.enableDiagnostic is deprecated. Please update as follows:

  • clang.enableCompletion -> clang.completion.enable
  • clang.enableDiagnostic -> clang.diagnostic.enable
  • clang.diagnosticDelay -> clang.diagnostic.delay

Command

  • ClangCommandAdapter: Show Executable and Compile Options: Showing Clang executable and compile options for the active editor.
  • ClangCommandAdapter: Trust Workspace: Trust the current workspace. (see #Security)
  • ClangCommandAdapter: Untrust Workspace: Untrust the current workspace. (see #Security)

Security

The following settings may cause security issue, if you are opening a malicious workspece.

  • clang.executable: Arbitrary executables specified in the workspace-level setting will be executed.
  • clang.cflags, clang.cxxflags, clang.objcflags: Clang command is executed with artibrary options specified in the workspace-level setting.

Therefore, these workspace-level settings are disabled by default.

  • To enable these workspace-level settings, please trust the workspace from dialog that appears when you open the file.
  • To change trust/untrust status of the current workspace, please use ClangCommandAdapter: Trust Workspace or ClangCommandAdapter: Untrust Workspace.

Acknowledgements

Resources

Open Source Agenda is not affiliated with "Vscode Clang" Project. README Source: mitaki28/vscode-clang
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