diff options
Diffstat (limited to 'src/parser.cpp')
| -rw-r--r-- | src/parser.cpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/parser.cpp b/src/parser.cpp index aa90651d3..01ed46ebc 100644 --- a/src/parser.cpp +++ b/src/parser.cpp @@ -6265,10 +6265,16 @@ gb_internal u64 parse_vet_tag(Token token_for_pos, String s) { syntax_error(token_for_pos, "Invalid vet flag name: %.*s", LIT(p)); error_line("\tExpected one of the following\n"); error_line("\tunused\n"); + error_line("\tunused-variables\n"); + error_line("\tunused-imports\n"); + error_line("\tunused-procedures\n"); error_line("\tshadowing\n"); error_line("\tusing-stmt\n"); error_line("\tusing-param\n"); + error_line("\tstyle\n"); error_line("\textra\n"); + error_line("\tcast\n"); + error_line("\ttabs\n"); return build_context.vet_flags; } } @@ -6286,6 +6292,63 @@ gb_internal u64 parse_vet_tag(Token token_for_pos, String s) { return vet_flags &~ vet_not_flags; } +gb_internal u64 parse_feature_tag(Token token_for_pos, String s) { + String const prefix = str_lit("feature"); + GB_ASSERT(string_starts_with(s, prefix)); + s = string_trim_whitespace(substring(s, prefix.len, s.len)); + + if (s.len == 0) { + return OptInFeatureFlag_NONE; + } + + u64 feature_flags = 0; + u64 feature_not_flags = 0; + + while (s.len > 0) { + String p = string_trim_whitespace(vet_tag_get_token(s, &s)); + if (p.len == 0) { + break; + } + + bool is_notted = false; + if (p[0] == '!') { + is_notted = true; + p = substring(p, 1, p.len); + if (p.len == 0) { + syntax_error(token_for_pos, "Expected a feature flag name after '!'"); + return OptInFeatureFlag_NONE; + } + } + + u64 flag = get_vet_flag_from_name(p); + if (flag != OptInFeatureFlag_NONE) { + if (is_notted) { + feature_not_flags |= flag; + } else { + feature_flags |= flag; + } + } else { + ERROR_BLOCK(); + syntax_error(token_for_pos, "Invalid feature flag name: %.*s", LIT(p)); + error_line("\tExpected one of the following\n"); + error_line("\tdynamic-literals\n"); + return OptInFeatureFlag_NONE; + } + } + + if (feature_flags == 0 && feature_not_flags == 0) { + return OptInFeatureFlag_NONE; + } + if (feature_flags == 0 && feature_not_flags != 0) { + return OptInFeatureFlag_NONE &~ feature_not_flags; + } + if (feature_flags != 0 && feature_not_flags == 0) { + return feature_flags; + } + GB_ASSERT(feature_flags != 0 && feature_not_flags != 0); + return feature_flags &~ feature_not_flags; +} + gb_internal String dir_from_path(String path) { String base_dir = path; for (isize i = path.len-1; i >= 0; i--) { @@ -6409,6 +6472,9 @@ gb_internal bool parse_file_tag(const String &lc, const Token &tok, AstFile *f) } } else if (lc == "no-instrumentation") { f->flags |= AstFile_NoInstrumentation; + } else if (string_starts_with(lc, str_lit("feature"))) { + f->feature_flags = parse_feature_tag(tok, lc); + f->feature_flags_set = true; } else { error(tok, "Unknown tag '%.*s'", LIT(lc)); } |