Fix a couple of bugs, add some new cool stuff.
1. Fix a todo in Parser::ParseTag, to recover better. On code like
that in test/Sema/decl-invalid.c it causes us to return a single
error instead of multiple.
2. Fix an error in Sema::ParseDeclarator, where it would crash if the
declarator didn't have an identifier. Instead, diagnose the problem.
3. Start adding infrastructure to track the range of locations covered
by a declspec or declarator. This is mostly implemented for declspec,
but could be improved, it is missing for declarator.
Thanks to Neil for pointing out this crash.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40482 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Parse/ParseObjc.cpp b/Parse/ParseObjc.cpp
new file mode 100644
index 0000000..00b606a
--- /dev/null
+++ b/Parse/ParseObjc.cpp
@@ -0,0 +1,105 @@
+//===--- ParseObjc.cpp - Objective C Parsing ------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Steve Naroff and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Objective-C portions of the Parser interface.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Parse/Parser.h"
+#include "clang/Basic/Diagnostic.h"
+#include "llvm/ADT/SmallVector.h"
+using namespace clang;
+
+
+/// ParseExternalDeclaration:
+/// external-declaration: [C99 6.9]
+/// [OBJC] objc-class-definition
+/// [OBJC] objc-class-declaration [TODO]
+/// [OBJC] objc-alias-declaration [TODO]
+/// [OBJC] objc-protocol-definition [TODO]
+/// [OBJC] objc-method-definition [TODO]
+/// [OBJC] '@' 'end' [TODO]
+void Parser::ParseObjCAtDirectives() {
+ SourceLocation AtLoc = ConsumeToken(); // the "@"
+
+ IdentifierInfo *II = Tok.getIdentifierInfo();
+ switch (II ? II->getObjCKeywordID() : tok::objc_not_keyword) {
+ case tok::objc_class:
+ return ParseObjCAtClassDeclaration(AtLoc);
+ case tok::objc_interface:
+ return ParseObjCAtInterfaceDeclaration();
+ case tok::objc_protocol:
+ return ParseObjCAtProtocolDeclaration();
+ case tok::objc_implementation:
+ return ParseObjCAtImplementationDeclaration();
+ case tok::objc_end:
+ return ParseObjCAtEndDeclaration();
+ case tok::objc_compatibility_alias:
+ return ParseObjCAtAliasDeclaration();
+ default:
+ Diag(AtLoc, diag::err_unexpected_at);
+ SkipUntil(tok::semi);
+ }
+}
+
+///
+/// objc-class-declaration:
+/// '@' 'class' identifier-list ';'
+///
+void Parser::ParseObjCAtClassDeclaration(SourceLocation atLoc) {
+ ConsumeToken(); // the identifier "class"
+ llvm::SmallVector<IdentifierInfo *, 8> ClassNames;
+
+ while (1) {
+ if (Tok.getKind() != tok::identifier) {
+ Diag(Tok, diag::err_expected_ident);
+ SkipUntil(tok::semi);
+ return;
+ }
+
+ ClassNames.push_back(Tok.getIdentifierInfo());
+ ConsumeToken();
+
+ if (Tok.getKind() != tok::comma)
+ break;
+
+ ConsumeToken();
+ }
+
+ // Consume the ';'.
+ if (ExpectAndConsume(tok::semi, diag::err_expected_semi_after, "@class"))
+ return;
+
+ Actions.ParsedObjcClassDeclaration(CurScope,
+ &ClassNames[0], ClassNames.size());
+}
+
+void Parser::ParseObjCAtInterfaceDeclaration() {
+ assert(0 && "Unimp");
+}
+void Parser::ParseObjCAtProtocolDeclaration() {
+ assert(0 && "Unimp");
+}
+void Parser::ParseObjCAtImplementationDeclaration() {
+ assert(0 && "Unimp");
+}
+void Parser::ParseObjCAtEndDeclaration() {
+ assert(0 && "Unimp");
+}
+void Parser::ParseObjCAtAliasDeclaration() {
+ assert(0 && "Unimp");
+}
+
+void Parser::ParseObjCInstanceMethodDeclaration() {
+ assert(0 && "Unimp");
+}
+
+void Parser::ParseObjCClassMethodDeclaration() {
+ assert(0 && "Unimp");
+}