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author | marha <marha@users.sourceforge.net> | 2011-10-05 17:37:34 +0200 |
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committer | marha <marha@users.sourceforge.net> | 2011-10-05 17:37:34 +0200 |
commit | f7025b4baa1ba35ee796785641f04eac5bedb0a6 (patch) | |
tree | 3df62b7b501a478e212397883657a8a8be4db7a3 /mesalib/src/glsl/glcpp/glcpp-parse.y | |
parent | 60adbfdea1ee754341d64454274e7aa83bae8971 (diff) | |
download | vcxsrv-f7025b4baa1ba35ee796785641f04eac5bedb0a6.tar.gz vcxsrv-f7025b4baa1ba35ee796785641f04eac5bedb0a6.tar.bz2 vcxsrv-f7025b4baa1ba35ee796785641f04eac5bedb0a6.zip |
mkfontscale pixman xserver xtrans libX11 libXdmcp libxcb libXmu mesa git update 5 oct 2011
Diffstat (limited to 'mesalib/src/glsl/glcpp/glcpp-parse.y')
-rw-r--r-- | mesalib/src/glsl/glcpp/glcpp-parse.y | 89 |
1 files changed, 49 insertions, 40 deletions
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.y b/mesalib/src/glsl/glcpp/glcpp-parse.y index 940830416..17941a9be 100644 --- a/mesalib/src/glsl/glcpp/glcpp-parse.y +++ b/mesalib/src/glsl/glcpp/glcpp-parse.y @@ -1275,6 +1275,48 @@ _glcpp_parser_expand_if (glcpp_parser_t *parser, int type, token_list_t *list) glcpp_parser_lex_from (parser, expanded); } +static void +_glcpp_parser_apply_pastes (glcpp_parser_t *parser, token_list_t *list) +{ + token_node_t *node; + + node = list->head; + while (node) + { + token_node_t *next_non_space; + + /* Look ahead for a PASTE token, skipping space. */ + next_non_space = node->next; + while (next_non_space && next_non_space->token->type == SPACE) + next_non_space = next_non_space->next; + + if (next_non_space == NULL) + break; + + if (next_non_space->token->type != PASTE) { + node = next_non_space; + continue; + } + + /* Now find the next non-space token after the PASTE. */ + next_non_space = next_non_space->next; + while (next_non_space && next_non_space->token->type == SPACE) + next_non_space = next_non_space->next; + + if (next_non_space == NULL) { + yyerror (&node->token->location, parser, "'##' cannot appear at either end of a macro expansion\n"); + return; + } + + node->token = _token_paste (parser, node->token, next_non_space->token); + node->next = next_non_space->next; + if (next_non_space == list->tail) + list->tail = node; + } + + list->non_space_tail = list->tail; +} + /* This is a helper function that's essentially part of the * implementation of _glcpp_parser_expand_node. It shouldn't be called * except for by that function. @@ -1386,43 +1428,7 @@ _glcpp_parser_expand_function (glcpp_parser_t *parser, _token_list_trim_trailing_space (substituted); - node = substituted->head; - while (node) - { - token_node_t *next_non_space; - - /* Look ahead for a PASTE token, skipping space. */ - next_non_space = node->next; - while (next_non_space && next_non_space->token->type == SPACE) - next_non_space = next_non_space->next; - - if (next_non_space == NULL) - break; - - if (next_non_space->token->type != PASTE) { - node = next_non_space; - continue; - } - - /* Now find the next non-space token after the PASTE. */ - next_non_space = next_non_space->next; - while (next_non_space && next_non_space->token->type == SPACE) - next_non_space = next_non_space->next; - - if (next_non_space == NULL) { - yyerror (&node->token->location, parser, "'##' cannot appear at either end of a macro expansion\n"); - return NULL; - } - - node->token = _token_paste (parser, node->token, next_non_space->token); - node->next = next_non_space->next; - if (next_non_space == substituted->tail) - substituted->tail = node; - - node = node->next; - } - - substituted->non_space_tail = substituted->tail; + _glcpp_parser_apply_pastes (parser, substituted); return substituted; } @@ -1492,13 +1498,16 @@ _glcpp_parser_expand_node (glcpp_parser_t *parser, if (! macro->is_function) { + token_list_t *replacement; *last = node; /* Replace a macro defined as empty with a SPACE token. */ if (macro->replacements == NULL) return _token_list_create_with_one_space (parser); - return _token_list_copy (parser, macro->replacements); + replacement = _token_list_copy (parser, macro->replacements); + _glcpp_parser_apply_pastes (parser, replacement); + return replacement; } return _glcpp_parser_expand_function (parser, node, last); @@ -1654,8 +1663,8 @@ _check_for_reserved_macro_name (glcpp_parser_t *parser, YYLTYPE *loc, /* According to the GLSL specification, macro names starting with "__" * or "GL_" are reserved for future use. So, don't allow them. */ - if (strncmp(identifier, "__", 2) == 0) { - glcpp_error (loc, parser, "Macro names starting with \"__\" are reserved.\n"); + if (strstr(identifier, "__")) { + glcpp_error (loc, parser, "Macro names containing \"__\" are reserved.\n"); } if (strncmp(identifier, "GL_", 3) == 0) { glcpp_error (loc, parser, "Macro names starting with \"GL_\" are reserved.\n"); |