grumpc cannot compile grumpc

[omeid]

Grumpy doesn't seem to be able to generate a working grumpyc in go.

$ git clone https://github.com/google/grumpy && cd grumpy
$ make
$ export GOPATH=$PWD/build
$ export PYTHONPATH=$PWD/build/lib/python2.7/site-packages
$ tools/grumpyc tools/grumypc > grumpyc.go && go build -o gorumpyc grumpyc.go 
grumpc.go:4:2: cannot find package "grumpy/lib/argparse" in any of:
	/usr/lib/go/src/grumpy/lib/argparse (from $GOROOT)
	/home/omeid/go/src/github.com/google/grumpy/build/src/grumpy/lib/argparse (from $GOPATH)
grumpc.go:5:2: cannot find package "grumpy/lib/ast" in any of:
	/usr/lib/go/src/grumpy/lib/ast (from $GOROOT)
	/home/omeid/go/src/github.com/google/grumpy/build/src/grumpy/lib/ast (from $GOPATH)
grumpc.go:6:2: cannot find package "grumpy/lib/grumpy" in any of:
	/usr/lib/go/src/grumpy/lib/grumpy (from $GOROOT)
	/home/omeid/go/src/github.com/google/grumpy/build/src/grumpy/lib/grumpy (from $GOPATH)
grumpc.go:7:2: cannot find package "grumpy/lib/grumpy/compiler" in any of:
	/usr/lib/go/src/grumpy/lib/grumpy/compiler (from $GOROOT)
	/home/omeid/go/src/github.com/google/grumpy/build/src/grumpy/lib/grumpy/compiler (from $GOPATH)
grumpc.go:8:2: cannot find package "grumpy/lib/grumpy/compiler/block" in any of:
	/usr/lib/go/src/grumpy/lib/grumpy/compiler/block (from $GOROOT)
	/home/omeid/go/src/github.com/google/grumpy/build/src/grumpy/lib/grumpy/compiler/block (from $GOPATH)
grumpc.go:9:2: cannot find package "grumpy/lib/grumpy/compiler/stmt" in any of:
	/usr/lib/go/src/grumpy/lib/grumpy/compiler/stmt (from $GOROOT)
	/home/omeid/go/src/github.com/google/grumpy/build/src/grumpy/lib/grumpy/compiler/stmt (from $GOPATH)
grumpc.go:10:2: cannot find package "grumpy/lib/grumpy/compiler/util" in any of:
	/usr/lib/go/src/grumpy/lib/grumpy/compiler/util (from $GOROOT)
	/home/omeid/go/src/github.com/google/grumpy/build/src/grumpy/lib/grumpy/compiler/util (from $GOPATH)
grumpc.go:12:2: cannot find package "grumpy/lib/textwrap" in any of:
	/usr/lib/go/src/grumpy/lib/textwrap (from $GOROOT)
	/home/omeid/go/src/github.com/google/grumpy/build/src/grumpy/lib/textwrap (from $GOPATH)

is this because third_party/stdlib uses exec and eval? If that is the case, it would be nice if tools/grumpyc actually give error or at least warnings when generating the go file.

[aniljava]

tools/grumpc is a transpiler and only does code to code translation without resolving any dependencies. You can put import something_that_doesnot_exist and it still translates to a go code. Syntax are checked by python runtime automatically as (tool/grumpc) is using python for parsing.

go build is the one that is checking the dependencies.

i dont think ast, argparse,textwrap is implemented yet for Grumpy std libs.

[S-YOU]

tools/grumpyc tools/grumypc

there is no such file as tools/grumypc, and you can't compile compiler itself to go even if that was a typo.

[omeid]

@aniljava Thank you, that makes sense. I thought grumpy went all the way down the rabbit hole.