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Go lang Support for Visual Studio for Windows and Mac

Build Status

Hackathon project proof-of-concept for a x plat Go language service. Now abandoned.

image

image

Done

Planned Supported platforms:

  • Visual Studio 2019 16.1 for Windows
  • Visual Studio 2019 8.2.0 Preview for Mac

How it does/will work

  • Language service smarts are written in Go, using the token, parser, and types libraries from the Go standard library to lex, parse, and type check the code.
  • Editor features talk to this language service through a thin inteop layer built using a a combination of PInvoke and a cgo c-shared library with C language bindings for Go.

Historical Context

Screenshots are from an earlier build which was a full, from-scratch language service for Go in C#. Since then, I have changed strategies to enable reuse of existing Go libraries.

We're starting at square one. The code seen here is a series of hacks meant to set the context.

Editor Features

  • Currently using TextMate for colorization and outlining and structure. Ideally we'll move this to using the Go AST or tokens.
  • Error squiggles are directly output by the go/parser and go/types libraries as a result of parsing and type checking the code.

Getting started

  • Install the Go development SDK.
  • Install gofmt and gogetdoc.
  • Build in Visual Studio 2019 16.1+.
  • Copy src/test-fodder to your GOPATH directory.
  • Open the file in the experimental VS instance.

Windows

  • Install Visual Studio 2019 16.1
  • Install Go SDK (expects C:\Go)
  • Install MinGW32 GCC C/C++ compiler for Windows (expects C:\MinGW)
  • Open Go.Windows.sln, rebuild and start 'Visual Studio Extension'

Mac

  • Install VS for Mac 8.2 Preview
  • Install Go SDK
  • Install XCode/Apple developer tools (needed for gcc).

Debugging

  • C# code is best debugged from Visual Studio.
  • It's recommended that you debug Go Code by:
    • Open the root of the repo in VS Code as a folder view
    • Install the Go Extension for VS Code
    • Test changes using the debugger in VS Code against the 'testapp.go' file.
  • Native Go interop layer can only be debugged via GCC, so it's recommended that you minimize additions to this layer.

Contributions and discussion are absolutely welcome :)

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