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- ast.FilterExports: strips all non-exported nodes from an AST

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- use FilterExports instead of the various predicates in printer.go and doc.go
  which simplifies a lot of code and makes it easier to deal with complex cases

R=rsc
DELTA=445  (197 added, 190 deleted, 58 changed)
OCL=31110
CL=31196
This commit is contained in:
Robert Griesemer 2009-07-06 10:37:33 -07:00
parent cd4aab62e3
commit deb954772d
6 changed files with 246 additions and 238 deletions
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13
src/cmd/godoc/godoc.go
View file

@ -198,9 +198,13 @@ func parse(path string, mode uint) (*ast.Program, *parseErrors) {
// Templates
// Return text for an AST node.
func nodeText(node interface{}, mode uint) []byte {
func nodeText(node interface{}) []byte {
var buf bytes.Buffer;
tw := makeTabwriter(&buf);
mode := uint(0);
if _, isProgram := node.(*ast.Program); isProgram {
mode = printer.DocComments;
}
printer.Fprint(tw, node, mode);
tw.Flush();
return buf.Data();
@ -219,9 +223,9 @@ func toText(x interface{}) []byte {
case String:
return strings.Bytes(v.String());
case ast.Decl:
return nodeText(v, printer.ExportsOnly);
return nodeText(v);
case ast.Expr:
return nodeText(v, printer.ExportsOnly);
return nodeText(v);
}
var buf bytes.Buffer;
fmt.Fprint(&buf, x);
@ -331,7 +335,7 @@ func serveGoSource(c *http.Conn, name string) {
var buf bytes.Buffer;
fmt.Fprintln(&buf, "<pre>");
template.HtmlEscape(&buf, nodeText(prog, printer.DocComments));
template.HtmlEscape(&buf, nodeText(prog));
fmt.Fprintln(&buf, "</pre>");
servePage(c, name + " - Go source", buf.Data());
@ -491,6 +495,7 @@ func (p *pakDesc) Doc() (*doc.PackageDoc, *parseErrors) {
r.Init(prog.Name.Value, p.importpath);
}
i++;
ast.FilterExports(prog); // we only care about exports
r.AddProgram(prog);
}