Re: bison and gccgo go language

[Akim Demaille]

Le 12 mars 2010 à 01:02, tys lefering a écrit :

> Hello Akim,

Hi Tys,

> The google go language gcc frontend is
> now in gcc svn called gccgo.
> 
> Soon it will be in main gcc source tree
> and distributed with gcc installations.

Wow.  I didn't know they were there already.

> Are there plans to make bison generate
> output for the go language already ?

Not that I know of :)  Do you?

> a yacc based parser generator tool written in go
> http://golang.org/src/cmd/goyacc/goyacc.go

Well, if they already have their own tool, it is unlikely that there is a real 
need for Bison here.  Unless *they* feel there is something to win with Bison.

> go language project on googlecode:
> http://code.google.com/p/go/
> 
> the go language grammar for bison
> http://code.google.com/p/go/source/browse/src/cmd/gc/go.y
> 
> go grammar parser error handling is using a awk script:
> http://code.google.com/p/go/source/browse/src/cmd/gc/bisonerrors
> http://code.google.com/p/go/source/browse/src/cmd/gc/go.errors
> 
> # It reads Bison's summary of a grammar followed by a file
> # like go.errors, replacing lines beginning with % by the
> # yystate and yychar that will be active when an error happens
> # while parsing that line.

That might be something we should look at.  There are probably features we 
should provide natively.