The callback info for #if/#elif is not great -- ideally it would give
us a list of tokens in the #if, or even better, a little parse tree.
But that's a lot more work. Instead, clients can retokenize using
Lexer::LexFromRawLexer().
Reviewed by nlewycky.
llvm-svn: 118318
inclusion directives, keeping track of every #include, #import,
etc. in the translation unit. We keep track of the source location and
kind of the inclusion, how the file name was spelled, and the
underlying file to which the inclusion resolved.
llvm-svn: 116952
Now MICache is a linked list (per the FIXME), where we tradeoff between MacroInfo objects being in MICache
and MIChainHead. MacroInfo objects in the MICache chain are already "Destroy()'ed", so they can be reused. When
inserting into MICache, we need to remove them from the regular linked list so that they aren't destroyed more than
once.
llvm-svn: 116869
The problem was not the management of MacroInfo objects, but that when we recycle them
via the MICache the memory of the underlying SmallVector (within MacroInfo) was not getting
released. This is because objects stashed into MICache simply are reused with a placement
new, and never have their destructor called.
llvm-svn: 116862
list of allocated MacroInfos. This requires only 1 extra pointer per MacroInfo object, and allows us to blow them
away in one place. This fixes an elusive memory leak with MacroInfos (whose exact location I couldn't still figure
out despite substantial digging).
Fixes <rdar://problem/8361834>.
llvm-svn: 116842
spelled (#pragma, _Pragma, __pragma). In -E mode, use that information
to add appropriate newlines when translating _Pragma and __pragma into
#pragma, like GCC does. Fixes <rdar://problem/8412013>.
llvm-svn: 113553
guard macro is already defined for the first occurrence of the
header. If it is, the body will be skipped and not be properly
analyzed for the include guard optimization.
llvm-svn: 95972
in diagnostics when we fail to open a file. This allows us to
report things like:
$ clang test.c -I.
test.c:2:10: fatal error: error opening file './foo.h': Permission denied
#include "foo.h"
^
llvm-svn: 90276
stat a file but where mmaping it fails. In this case, we emit an
error like:
t.c:1:10: fatal error: error opening file '../../foo.h'
instead of "cannot find file".
llvm-svn: 90110
1. When we accept "#garbage" in asm-with-cpp mode, change the token kind
of the # to unknown so that the preprocessor won't try to process it as
a real #. This fixes a crash on the attached example
2. Fix macro definition extents processing to handle #foo at the end of a
macro to say the definition ends with the foo, not the #.
This is a follow-on fix to r72283, and rdar://6916026
llvm-svn: 72388
in a function-like macro body. This has the added bonus of moving some
function-like macro specific code out of the object-like macro codepath.
llvm-svn: 69530
as decimal, even if it starts with 0. Also, since things like 0x1 are
completely illegal, don't even bother using numericliteralparser for them.
llvm-svn: 69454
Craig Silverstein