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Add #+feature dynamic-literals

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This commit is contained in:
gingerBill
2025-01-05 13:19:10 +00:00
parent acbb14d87e
commit 2efe4c2d68
4 changed files with 88 additions and 2 deletions
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66
src/parser.cpp
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@@ -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));
}