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go/usr/gri/gosrc/go.go
Robert Griesemer af065a0c77 - make code in gosrc compile again, check in all pending changes
(this code doesn't match the existing language at this point,
  but it's a large code base which compiles - will eventually go
  away)
- enable compilation of it again in run.bash

R=r
DELTA=1147  (534 added, 311 deleted, 302 changed)
OCL=22176
CL=22176
2009-01-06 16:26:45 -08:00

92 lines
2.0 KiB
Go

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import Build "build"
import Globals "globals"
import Compilation "compilation"
func PrintHelp() {
print(
"go (" + Build.time + ")\n" +
"usage:\n" +
" go { flag } { file }\n" +
" -d debug mode, additional self tests and prints\n" +
" -o file explicit object file\n" +
" -r recursively update imported packages in current directory\n" +
" -p print package interface\n" +
" -v [0 .. 3] verbosity level\n" +
" -6g 6g compatibility mode\n" +
" -token_chan use token channel to scan and parse in parallel\n"
);
}
var argno int = 1;
func Next() string {
arg := "";
if argno < sys.argc() {
arg = sys.argv(argno);
argno++;
}
return arg;
}
func main() {
arg := Next();
if arg == "" {
PrintHelp();
return;
}
// collect flags and files
flags := new(Globals.Flags);
files := Globals.NewList();
for arg != "" {
switch arg {
case "-d": flags.debug = true;
case "-o": flags.object_file = Next();
print("note: -o flag ignored at the moment\n");
case "-r": flags.update_packages = true;
case "-p": flags.print_interface = true;
case "-v":
arg = Next();
switch arg {
case "0", "1", "2", "3":
flags.verbosity = uint(arg[0] - '0');
default:
// anything else is considered the next argument
flags.verbosity = 1;
continue;
}
case "-6g": flags.sixg = true;
case "-token_chan": flags.token_chan = true;
default: files.AddStr(arg);
}
arg = Next();
}
// setup environment
env := new(Globals.Environment);
env.Error = &Compilation.Error;
env.Import = &Compilation.Import;
env.Export = &Compilation.Export;
env.Compile = &Compilation.Compile;
// compile files
for p := files.first; p != nil; p = p.next {
// setup compilation
comp := new(Globals.Compilation);
comp.flags = flags;
comp.env = env;
// compile
Compilation.Compile(comp, p.str);
}
}