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| author | Zack Weinberg <zack@gcc.gnu.org> | 2000-08-04 01:30:06 +0000 |
|---|---|---|
| committer | Zack Weinberg <zack@gcc.gnu.org> | 2000-08-04 01:30:06 +0000 |
| commit | ba89d661ac573f2402fa4f3b4cb117c8c74968e2 (patch) | |
| tree | 254d84e8b966d54bb05be43ebe0b47a16be7a4ea /gcc/cpplib.c | |
| parent | d31772ca70b9d2a315372456bfdf343c3806a3f8 (diff) | |
| download | gcc-ba89d661ac573f2402fa4f3b4cb117c8c74968e2.zip gcc-ba89d661ac573f2402fa4f3b4cb117c8c74968e2.tar.gz gcc-ba89d661ac573f2402fa4f3b4cb117c8c74968e2.tar.bz2 | |
cpplex.c (parse_name): Might have to glue a CPP_OTHER token before the name.
* cpplex.c (parse_name): Might have to glue a CPP_OTHER token
before the name.
(lex_line): Glue @ onto the beginning of identifiers and
string constants, in Objective-C mode.
(output_token, spell_token): Handle CPP_OSTRING.
(can_paste, maybe_paste_with_next): Handle pasting @ onto the
beginning of a NAME or a STRING, in objc mode.
* cpplib.c (get_define_node): Do not permit identifiers that
begin with @ to be #defined.
* cppmacro.c (CAN_PASTE_AFTER): Add CPP_OTHER.
* cpplib.h (TTYPE_TABLE): Add CPP_OSTRING.
* c-lang.c, objc/objc-act.c (build_objc_string): Delete.
* c-tree.h (build_objc_string): Delete prototype.
* objc/objc-tree.def: Delete OBJC_STRING_CST.
* c-lex.c (yylex): Use build_string for all three kinds of strings.
* gcc.dg/cpp/20000625-2.c: Don't expect a warning on line 4.
From-SVN: r35470
Diffstat (limited to 'gcc/cpplib.c')
| -rw-r--r-- | gcc/cpplib.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/cpplib.c b/gcc/cpplib.c index fe96d4e..1ce9bbf 100644 --- a/gcc/cpplib.c +++ b/gcc/cpplib.c @@ -242,6 +242,16 @@ get_define_node (pfile) return 0; } + /* In Objective C, some keywords begin with '@', but general identifiers + do not, and you're not allowed to #define them. */ + if (token->val.node->name[0] == '@') + { + cpp_error_with_line (pfile, token->line, token->col, + "\"%s\" cannot be used as a macro name", + token->val.node->name); + return 0; + } + /* Check for poisoned identifiers now. */ if (token->val.node->type == T_POISON) { |