mirror of
https://github.com/golang/go
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115 lines
2.1 KiB
Go
115 lines
2.1 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package Compilation
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import Globals "globals"
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import Object "object"
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import Type "type"
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import Universe "universe"
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import Package "package"
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import Scanner "scanner"
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import Parser "parser"
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import Export "export"
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export Compilation
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type Compilation struct {
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src_name string;
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pkg *Globals.Object;
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imports [256] *Package.Package; // TODO need open arrays
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nimports int;
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}
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func (C *Compilation) Lookup(file_name string) *Package.Package {
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for i := 0; i < C.nimports; i++ {
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pkg := C.imports[i];
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if pkg.file_name == file_name {
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return pkg;
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}
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}
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return nil;
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}
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func (C *Compilation) Insert(pkg *Package.Package) {
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if C.Lookup(pkg.file_name) != nil {
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panic "package already inserted";
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}
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pkg.pno = C.nimports;
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C.imports[C.nimports] = pkg;
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C.nimports++;
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}
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func (C *Compilation) InsertImport(pkg *Package.Package) *Package.Package {
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p := C.Lookup(pkg.file_name);
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if (p == nil) {
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// no primary package found
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C.Insert(pkg);
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p = pkg;
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}
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return p;
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}
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func BaseName(s string) string {
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// TODO this is not correct for non-ASCII strings!
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i := len(s);
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for i >= 0 && s[i] != '/' {
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if s[i] > 128 {
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panic "non-ASCII string"
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}
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i--;
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}
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return s[i + 1 : len(s)];
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}
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func FixExt(s string) string {
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i := len(s) - 3; // 3 == len(".go");
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if s[i : len(s)] == ".go" {
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s = s[0 : i];
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}
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return s + ".7"
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}
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func (C *Compilation) Import(pkg_name string) (pno int) {
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panic "UNIMPLEMENTED";
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}
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func (C *Compilation) Export() {
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file_name := FixExt(BaseName(C.src_name)); // strip src dir
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Export.Export(file_name/*, C */);
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}
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export Compile
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func Compile(src_name string, verbose int) {
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comp := new(Compilation);
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comp.src_name = src_name;
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comp.pkg = nil;
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comp.nimports = 0;
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src, ok := sys.readfile(src_name);
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if !ok {
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print "cannot open ", src_name, "\n"
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return;
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}
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Universe.Init();
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S := new(Scanner.Scanner);
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S.Open(src_name, src);
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P := new(Parser.Parser);
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P.Open(S, verbose);
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print "parsing ", src_name, "\n";
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P.ParseProgram();
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}
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