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proposal: cmd/compile: refactor compiler and linker to be libraries #26384

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dave opened this issue Jul 14, 2018 · 2 comments

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commented Jul 14, 2018

The Go compiler and linker are currently built as command line tools. This issue proposes refactoring so they can be used as libraries.

Benefits:

  • External applications could compile code in a server (or even browser) environment. For example a wasm mode for https://compile.jsgo.io/ and https://play.jsgo.io/. Currently this is impossible.
  • The go command line tool currently uses os/exec to spawn sub processes when it needs to compile and link. If the compiler and linker were built as libraries, this could be accomplished in-process, without the overhead of os/exec.

Problems:

  • The current code directly accesses the filesystem with the os package for reading the input code and writing the output binaries. A solution would need an abstraction layer, similar to build.Config.
  • The current codebase makes extensive use of package level variables to store state - this would need to be refactored.
  • This will increase the public surface area of the compiler API.

@agnivade agnivade changed the title cmd/compile: refactor compiler and linker to be libraries proposal: cmd/compile: refactor compiler and linker to be libraries Jul 14, 2018

@gopherbot gopherbot added this to the Proposal milestone Jul 14, 2018

@gopherbot gopherbot added the Proposal label Jul 14, 2018

@ALTree

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commented Jul 14, 2018

This is #15108

@dave

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commented Jul 14, 2018

Yes you're absolutely right. I'll close this.

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