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rearrange more code, this avoids a token lookahead for foo< 

llvm-svn: 74261
This commit is contained in:
Chris Lattner 2009-06-26 03:52:38 +00:00
parent 0eed3a6813
commit e2355f70fa
1 changed files with 51 additions and 44 deletions
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95
clang/lib/Parse/ParseExprCXX.cpp
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@ -90,50 +90,6 @@ bool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS) {
continue;
}
// nested-name-specifier:
// type-name '::'
// namespace-name '::'
// nested-name-specifier identifier '::'
if (Tok.is(tok::identifier) && NextToken().is(tok::coloncolon)) {
// We have an identifier followed by a '::'. Lookup this name
// as the name in a nested-name-specifier.
IdentifierInfo *II = Tok.getIdentifierInfo();
SourceLocation IdLoc = ConsumeToken();
assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!");
SourceLocation CCLoc = ConsumeToken();
if (!HasScopeSpecifier) {
SS.setBeginLoc(IdLoc);
HasScopeSpecifier = true;
}
if (SS.isInvalid())
continue;
SS.setScopeRep(
Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, IdLoc, CCLoc, *II));
SS.setEndLoc(CCLoc);
continue;
}
// nested-name-specifier:
// type-name '::'
if (Tok.is(tok::identifier) && NextToken().is(tok::less)) {
TemplateTy Template;
TemplateNameKind TNK = Actions.isTemplateName(*Tok.getIdentifierInfo(),
CurScope, Template, &SS);
if (TNK) {
// We have found a template name, so annotate this this token
// with a template-id annotation. We do not permit the
// template-id to be translated into a type annotation,
// because some clients (e.g., the parsing of class template
// specializations) still want to see the original template-id
// token.
AnnotateTemplateIdToken(Template, TNK, &SS, SourceLocation(), false);
continue;
}
}
if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) {
// We have
//
@ -177,6 +133,57 @@ bool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS) {
assert(false && "FIXME: Only type template names supported here");
}
// The rest of the nested-name-specifier possibilities start with
// tok::identifier.
if (Tok.isNot(tok::identifier))
break;
IdentifierInfo &II = *Tok.getIdentifierInfo();
// nested-name-specifier:
// type-name '::'
// namespace-name '::'
// nested-name-specifier identifier '::'
Token Next = NextToken();
if (Next.is(tok::coloncolon)) {
// We have an identifier followed by a '::'. Lookup this name
// as the name in a nested-name-specifier.
SourceLocation IdLoc = ConsumeToken();
assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!");
SourceLocation CCLoc = ConsumeToken();
if (!HasScopeSpecifier) {
SS.setBeginLoc(IdLoc);
HasScopeSpecifier = true;
}
if (SS.isInvalid())
continue;
SS.setScopeRep(
Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, IdLoc, CCLoc, II));
SS.setEndLoc(CCLoc);
continue;
}
// nested-name-specifier:
// type-name '<'
if (Next.is(tok::less)) {
TemplateTy Template;
if (TemplateNameKind TNK = Actions.isTemplateName(II, CurScope,
Template, &SS)) {
// We have found a template name, so annotate this this token
// with a template-id annotation. We do not permit the
// template-id to be translated into a type annotation,
// because some clients (e.g., the parsing of class template
// specializations) still want to see the original template-id
// token.
AnnotateTemplateIdToken(Template, TNK, &SS, SourceLocation(), false);
continue;
}
}
// We don't have any tokens that form the beginning of a
// nested-name-specifier, so we're done.
break;