diff options
Diffstat (limited to 'mesalib/src/glsl/glcpp/glcpp-parse.y')
| -rw-r--r-- | mesalib/src/glsl/glcpp/glcpp-parse.y | 61 |
1 files changed, 55 insertions, 6 deletions
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.y b/mesalib/src/glsl/glcpp/glcpp-parse.y index 9e8f9b2d6..cc4af1689 100644 --- a/mesalib/src/glsl/glcpp/glcpp-parse.y +++ b/mesalib/src/glsl/glcpp/glcpp-parse.y @@ -105,9 +105,15 @@ _parser_active_list_pop (glcpp_parser_t *parser); static int _parser_active_list_contains (glcpp_parser_t *parser, const char *identifier); +/* Expand list, and begin lexing from the result (after first + * prefixing a token of type 'head_token_type'). + */ static void -_glcpp_parser_expand_if (glcpp_parser_t *parser, int type, token_list_t *list); +_glcpp_parser_expand_and_lex_from (glcpp_parser_t *parser, + int head_token_type, + token_list_t *list); +/* Perform macro expansion in-place on the given list. */ static void _glcpp_parser_expand_token_list (glcpp_parser_t *parser, token_list_t *list); @@ -156,7 +162,7 @@ add_builtin_define(glcpp_parser_t *parser, const char *name, int value); %lex-param {glcpp_parser_t *parser} %expect 0 -%token COMMA_FINAL DEFINED ELIF_EXPANDED HASH HASH_DEFINE_FUNC HASH_DEFINE_OBJ HASH_ELIF HASH_ELSE HASH_ENDIF HASH_IF HASH_IFDEF HASH_IFNDEF HASH_UNDEF HASH_VERSION IDENTIFIER IF_EXPANDED INTEGER INTEGER_STRING NEWLINE OTHER PLACEHOLDER SPACE +%token COMMA_FINAL DEFINED ELIF_EXPANDED HASH HASH_DEFINE_FUNC HASH_DEFINE_OBJ HASH_ELIF HASH_ELSE HASH_ENDIF HASH_IF HASH_IFDEF HASH_IFNDEF HASH_LINE HASH_UNDEF HASH_VERSION IDENTIFIER IF_EXPANDED INTEGER INTEGER_STRING LINE_EXPANDED NEWLINE OTHER PLACEHOLDER SPACE %token PASTE %type <ival> expression INTEGER operator SPACE integer_constant %type <str> IDENTIFIER INTEGER_STRING OTHER @@ -202,6 +208,24 @@ expanded_line: | ELIF_EXPANDED expression NEWLINE { _glcpp_parser_skip_stack_change_if (parser, & @1, "elif", $2); } +| LINE_EXPANDED integer_constant NEWLINE { + parser->has_new_line_number = 1; + parser->new_line_number = $2; + ralloc_asprintf_rewrite_tail (&parser->output, + &parser->output_length, + "#line %" PRIiMAX, + $2); + } +| LINE_EXPANDED integer_constant integer_constant NEWLINE { + parser->has_new_line_number = 1; + parser->new_line_number = $2; + parser->has_new_source_number = 1; + parser->new_source_number = $3; + ralloc_asprintf_rewrite_tail (&parser->output, + &parser->output_length, + "#line %" PRIiMAX " %" PRIiMAX, + $2, $3); + } ; control_line: @@ -222,6 +246,14 @@ control_line: } ralloc_free ($2); } +| HASH_LINE pp_tokens NEWLINE { + if (parser->skip_stack == NULL || + parser->skip_stack->type == SKIP_NO_SKIP) + { + _glcpp_parser_expand_and_lex_from (parser, + LINE_EXPANDED, $2); + } + } | HASH_IF conditional_tokens NEWLINE { /* Be careful to only evaluate the 'if' expression if * we are not skipping. When we are skipping, we @@ -233,7 +265,8 @@ control_line: if (parser->skip_stack == NULL || parser->skip_stack->type == SKIP_NO_SKIP) { - _glcpp_parser_expand_if (parser, IF_EXPANDED, $2); + _glcpp_parser_expand_and_lex_from (parser, + IF_EXPANDED, $2); } else { @@ -272,7 +305,8 @@ control_line: if (parser->skip_stack && parser->skip_stack->type == SKIP_TO_ELSE) { - _glcpp_parser_expand_if (parser, ELIF_EXPANDED, $2); + _glcpp_parser_expand_and_lex_from (parser, + ELIF_EXPANDED, $2); } else { @@ -341,6 +375,9 @@ integer_constant: expression: integer_constant +| IDENTIFIER { + $$ = 0; + } | expression OR expression { $$ = $1 || $3; } @@ -1109,6 +1146,11 @@ glcpp_parser_create (const struct gl_extensions *extensions, int api) parser->info_log_length = 0; parser->error = 0; + parser->has_new_line_number = 0; + parser->new_line_number = 1; + parser->has_new_source_number = 0; + parser->new_source_number = 0; + /* Add pre-defined macros. */ add_builtin_define(parser, "GL_ARB_draw_buffers", 1); add_builtin_define(parser, "GL_ARB_texture_rectangle", 1); @@ -1269,14 +1311,21 @@ _token_list_create_with_one_space (void *ctx) return list; } +/* Perform macro expansion on 'list', placing the resulting tokens + * into a new list which is initialized with a first token of type + * 'head_token_type'. Then begin lexing from the resulting list, + * (return to the current lexing source when this list is exhausted). + */ static void -_glcpp_parser_expand_if (glcpp_parser_t *parser, int type, token_list_t *list) +_glcpp_parser_expand_and_lex_from (glcpp_parser_t *parser, + int head_token_type, + token_list_t *list) { token_list_t *expanded; token_t *token; expanded = _token_list_create (parser); - token = _token_create_ival (parser, type, type); + token = _token_create_ival (parser, head_token_type, head_token_type); _token_list_append (expanded, token); _glcpp_parser_expand_token_list (parser, list); _token_list_append_list (expanded, list); |