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| author | Ziemowit Laski <zlaski@apple.com> | 2004-09-10 06:40:15 +0000 |
|---|---|---|
| committer | Ziemowit Laski <zlaski@gcc.gnu.org> | 2004-09-10 06:40:15 +0000 |
| commit | 2e2da46727a4b1414d5f2f8d2a016a8609268abe (patch) | |
| tree | f133ff22c97a48897d90f14ae140438988d45677 /gcc | |
| parent | 236f983261dd0460975b89dc232b8fac6080519d (diff) | |
| download | gcc-2e2da46727a4b1414d5f2f8d2a016a8609268abe.zip gcc-2e2da46727a4b1414d5f2f8d2a016a8609268abe.tar.gz gcc-2e2da46727a4b1414d5f2f8d2a016a8609268abe.tar.bz2 | |
typeck.c (build_c_cast): Preserve the cast if casting to and from an Objective-C type.
[gcc/cp/ChangeLog]
2004-09-09 Ziemowit Laski <zlaski@apple.com>
* typeck.c (build_c_cast): Preserve the cast if casting
to and from an Objective-C type.
From-SVN: r87277
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cp/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cp/typeck.c | 7 |
2 files changed, 12 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 43c58aa..08b32a2 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,5 +1,10 @@ 2004-09-09 Ziemowit Laski <zlaski@apple.com> + * typeck.c (build_c_cast): Preserve the cast if casting + to and from an Objective-C type. + +2004-09-09 Ziemowit Laski <zlaski@apple.com> + * Make-lang.in (cp/typeck.o): Depend on c-common.h. * typeck.c: Include c-common.h. (comptypes): For RECORD_TYPEs, call objc_comptypes() and diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c index 94e903d..f4d1679 100644 --- a/gcc/cp/typeck.c +++ b/gcc/cp/typeck.c @@ -4829,6 +4829,13 @@ build_c_cast (tree type, tree expr) return t; } + /* Casts to a (pointer to a) specific ObjC class (or 'id' or + 'Class') should always be retained, because this information aids + in method lookup. */ + if (objc_is_object_ptr (type) + && objc_is_object_ptr (TREE_TYPE (expr))) + return build_nop (type, expr); + /* build_c_cast puts on a NOP_EXPR to make the result not an lvalue. Strip such NOP_EXPRs if VALUE is being used in non-lvalue context. */ if (TREE_CODE (type) != REFERENCE_TYPE |