Commit Graph

13 Commits

Author SHA1 Message Date
Douglas Gregor 4123a86fae Use Sema::RequireCompleteType to check for the completeness of
Objective-C classes. This has two purposes: to consistently provide
"forward declaration here" notes when we hit an incomplete type, and
to give LLDB a chance to complete the type.

RequireCompleteType bits from Sean Callanan!

llvm-svn: 144573
2011-11-14 22:10:01 +00:00
Argyrios Kyrtzidis 7da04c6367 Emit an error when trying to @encode an incomplete type.
There are APIs, e.g. [NSValue valueWithBytes:objCType:], which use the encoding to find out
the size of an object pointed to by a pointer. Make things safer by making it illegal to @encode
incomplete types.

llvm-svn: 131364
2011-05-14 20:32:39 +00:00
Ted Kremenek 6cd0187718 Remove warning for null characters in CFString literals. Clang handles them just fine, and GCC 4.2 doesn't warn here either.
We added this warning back in 2007 when we were comparing against GCC 4.0.

llvm-svn: 127704
2011-03-15 21:18:52 +00:00
Chris Lattner bb3bcd868a fix rdar://8445858 - __sync_* intrinsics erroneously reject ObjC pointers
llvm-svn: 114209
2010-09-17 21:12:38 +00:00
Douglas Gregor 6cf3f3c75e Statement expressions can be used in global- or namespace-scoped blocks
llvm-svn: 98135
2010-03-10 04:54:39 +00:00
Mike Stump 0978af83b3 Insulate these from changes to the default for -Wunreachable-code.
llvm-svn: 94326
2010-01-23 20:12:18 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
- This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

llvm-svn: 91446
2009-12-15 20:14:24 +00:00
Fariborz Jahanian 0399c1c9c0 Change tests to use clang -cc1...
llvm-svn: 91297
2009-12-14 17:36:25 +00:00
Chris Lattner 01b8ef2ac4 improve the string literal comparison warning to not call @encode's "string literals".
llvm-svn: 68407
2009-04-03 21:11:28 +00:00
Daniel Dunbar a45cf5b6b0 Rename clang to clang-cc.
Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
2009-03-24 02:24:46 +00:00
Chris Lattner a26fb347a0 Start improving diagnostics that relate to subcharacters of string literals.
First step, handle diagnostics in StringLiteral's that are due to token pasting.

For example, we now handle:
  id str2 = @"foo" 
            "bar"
           @"baz"
           " b\0larg";  // expected-warning {{literal contains NUL character}}

Correctly:

test/SemaObjC/exprs.m:17:15: warning: CFString literal contains NUL character
           " b\0larg";  // expected-warning {{literal contains NUL character}}
           ~~~^~~~~~~

There are several other related issues still to be done.

llvm-svn: 64924
2009-02-18 17:49:48 +00:00
Chris Lattner c96e0c4399 pass -verify in exprs.m, merge const-id.m into message.m
llvm-svn: 64886
2009-02-18 04:41:38 +00:00
Chris Lattner 2c4866057d fix rdar://6597252: two exactly identical pointer types are always
compatible, even if they are weird implicit objc pointer types like
Class.

llvm-svn: 64885
2009-02-18 04:38:20 +00:00