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mirror of https://github.com/golang/go synced 2024-11-23 00:40:08 -07:00
go/usr/gri/gosrc/verifier.go
Robert Griesemer 9761a6d069 - backward link from objs to containing scope
(first step towards cleaner package handling)
- check that map, function, and channel vars are pointers

R=r
OCL=13690
CL=13690
2008-07-31 13:35:30 -07:00

113 lines
1.9 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.
// Verifies compiler-internal data structures.
package Verifier
import Utils "utils"
import Scanner "scanner"
import Globals "globals"
import Object "object"
import Type "type"
import Universe "universe"
import Import "import"
import AST "ast"
func Error(msg string) {
panic "internal compiler error: ", msg, "\n";
}
func VerifyObject(obj *Globals.Object, pnolev int);
func VerifyType(typ *Globals.Type) {
if typ.obj != nil {
VerifyObject(typ.obj, 0);
}
switch typ.form {
case Type.UNDEF: // for now - remove eventually
break;
case Type.NIL:
break;
case Type.BOOL:
break;
case Type.UINT:
break;
case Type.INT:
break;
case Type.FLOAT:
break;
case Type.STRING:
break;
case Type.ANY:
break;
case Type.ALIAS:
break;
case Type.ARRAY:
break;
case Type.STRUCT:
break;
case Type.INTERFACE:
break;
case Type.MAP:
break;
case Type.CHANNEL:
break;
case Type.FUNCTION:
break;
case Type.POINTER:
break;
case Type.REFERENCE:
break;
default:
Error("illegal type form " + Type.FormStr(typ.form));
}
}
func VerifyObject(obj *Globals.Object, pnolev int) {
VerifyType(obj.typ);
switch obj.kind {
case Object.CONST:
break;
case Object.TYPE:
break;
case Object.VAR:
break;
case Object.FUNC:
break;
case Object.PACKAGE:
break;
case Object.LABEL:
break;
default:
Error("illegal object kind " + Object.KindStr(obj.kind));
}
}
func VerifyScope(scope *Globals.Scope) {
for p := scope.entries.first; p != nil; p = p.next {
VerifyObject(p.obj, 0);
}
}
func VerifyPackage(pkg *Globals.Package, pno int) {
VerifyObject(pkg.obj, 0);
}
export Verify
func Verify(comp *Globals.Compilation) {
for i := 0; i < comp.npkgs; i++ {
VerifyPackage(comp.pkgs[i], i);
}
}