From 907a10378e4c63686abe0739634b30615018ccd1 Mon Sep 17 00:00:00 2001 From: Carl Worth Date: Wed, 28 Nov 2012 11:52:05 -0800 Subject: [PATCH] glcpp: Add support for __LINE__ and __FILE__ macros These tokens are easy to expand by just looking at the current, tracked location values, (and no need to look anything up in the hash table). Add a test which verifies __LINE__ with several values, (and verifies __FILE__ for the single value of 0). Our testing framework isn't sophisticated enough here to have a test with multiple file inputs. This commit fixes part of es3conform's preprocess16_frag test. Reviewed-by: Matt Turner --- src/glsl/glcpp/glcpp-parse.y | 31 +++++++++++++++++++++- src/glsl/glcpp/tests/113-line-and-file-macros.c | 7 +++++ .../tests/113-line-and-file-macros.c.expected | 8 ++++++ 3 files changed, 45 insertions(+), 1 deletion(-) create mode 100644 src/glsl/glcpp/tests/113-line-and-file-macros.c create mode 100644 src/glsl/glcpp/tests/113-line-and-file-macros.c.expected diff --git a/src/glsl/glcpp/glcpp-parse.y b/src/glsl/glcpp/glcpp-parse.y index b0537c3..d928044 100644 --- a/src/glsl/glcpp/glcpp-parse.y +++ b/src/glsl/glcpp/glcpp-parse.y @@ -1528,8 +1528,37 @@ _glcpp_parser_expand_node (glcpp_parser_t *parser, return NULL; } - /* Look up this identifier in the hash table. */ identifier = token->value.str; + + /* Special handling for __LINE__ and __FILE__, (not through + * the hash table). */ + if (strcmp(identifier, "__LINE__") == 0) { + token_list_t *replacement; + token_t *value; + + replacement = _token_list_create (parser); + value = _token_create_ival (parser, INTEGER, + node->token->location.first_line); + _token_list_append (replacement, value); + + *last = node; + return replacement; + } + + if (strcmp(identifier, "__FILE__") == 0) { + token_list_t *replacement; + token_t *value; + + replacement = _token_list_create (parser); + value = _token_create_ival (parser, INTEGER, + node->token->location.source); + _token_list_append (replacement, value); + + *last = node; + return replacement; + } + + /* Look up this identifier in the hash table. */ macro = hash_table_find (parser->defines, identifier); /* Not a macro, so no expansion needed. */ diff --git a/src/glsl/glcpp/tests/113-line-and-file-macros.c b/src/glsl/glcpp/tests/113-line-and-file-macros.c new file mode 100644 index 0000000..369c487 --- /dev/null +++ b/src/glsl/glcpp/tests/113-line-and-file-macros.c @@ -0,0 +1,7 @@ +1. Number of dalmations: __LINE__ __FILE__ __LINE__ +2. Nominal visual acuity: __LINE__ __FILE__ / __LINE__ __FILE__ +3. Battle of Thermopylae, as film: __LINE__ __FILE__ __FILE__ +4. HTTP code for "Not Found": __LINE__ __FILE__ __LINE__ +5. Hexadecimal for 20560: __LINE__ __FILE__ __LINE__ __FILE__ +6: Zip code for Nortonville, KS: __LINE__ __LINE__ __FILE__ __LINE__ __FILE__ +7. James Bond, as a number: __FILE__ __FILE__ __LINE__ diff --git a/src/glsl/glcpp/tests/113-line-and-file-macros.c.expected b/src/glsl/glcpp/tests/113-line-and-file-macros.c.expected new file mode 100644 index 0000000..3562fb9 --- /dev/null +++ b/src/glsl/glcpp/tests/113-line-and-file-macros.c.expected @@ -0,0 +1,8 @@ +1. Number of dalmations: 1 0 1 +2. Nominal visual acuity: 2 0 / 2 0 +3. Battle of Thermopylae, as film: 3 0 0 +4. HTTP code for "Not Found": 4 0 4 +5. Hexadecimal for 20560: 5 0 5 0 +6: Zip code for Nortonville, KS: 6 6 0 6 0 +7. James Bond, as a number: 0 0 7 + -- 2.7.4