collect and show docs of defineables

src/check_builtin.cpp

@@ -1759,6 +1759,7 @@ gb_internal bool check_builtin_procedure_directive(CheckerContext *c, Operand *o
 		// If the arg is a selector expression we don't add it, `-define` only allows identifiers.
 		if (arg->kind == Ast_Ident) {
 			Defineable defineable    = {};
+			defineable.docs          = nullptr;
 			defineable.name          = arg->Ident.token.string;
 			defineable.default_value = exact_value_bool(false);
 			defineable.pos           = arg->Ident.token.pos;
@@ -1769,7 +1770,7 @@ gb_internal bool check_builtin_procedure_directive(CheckerContext *c, Operand *o
 
 	} else if (name == "config") {
 		if (ce->args.count != 2) {
-			error(call, "'#config' expects 2 argument, got %td", ce->args.count);
+			error(call, "'#config' expects 2 arguments, got %td", ce->args.count);
 			return false;
 		}
 		Ast *arg = unparen_expr(ce->args[0]);
@@ -1806,10 +1807,15 @@ gb_internal bool check_builtin_procedure_directive(CheckerContext *c, Operand *o
 		}
 
 		Defineable defineable    = {};
+		defineable.docs          = nullptr;
 		defineable.name          = name;
 		defineable.default_value = def.value;
 		defineable.pos           = arg->Ident.token.pos;
 
+		if (c->decl) {
+			defineable.docs = c->decl->docs;
+		}
+
 		MUTEX_GUARD(&c->info->defineables_mutex);
 		array_add(&c->info->defineables, defineable);
 

src/checker.hpp

@@ -377,9 +377,10 @@ struct GenTypesData {
 };
 
 struct Defineable {
-	String     name;
-	ExactValue default_value;
-	TokenPos   pos;
+	String        name;
+	ExactValue    default_value;
+	TokenPos      pos;
+	CommentGroup *docs;
 
 	// These strings are only computed from previous fields when defineables are being shown or exported.
 	String default_value_str;

src/main.cpp

@@ -1593,7 +1593,8 @@ gb_internal void check_defines(BuildContext *bc, Checker *c) {
 		}
 
 		if (!found) {
-			warning(nullptr, "given -define:%s is unused in the project", name);
+			ERROR_BLOCK();
+			warning(nullptr, "given -define:%.*s is unused in the project", LIT(name));
 			error_line("\tSuggestion: use the -show-defineables flag for an overview of the possible defines\n");
 		}
 	}
@@ -1639,44 +1640,49 @@ gb_internal void export_defineables(Checker *c, String path) {
 	}
 	defer (gb_file_close(&f));
 
-	gb_fprintf(&f, "Defineable,Default Value,Location\n");
+	gbString docs = gb_string_make(heap_allocator(), "");
+	defer (gb_string_free(docs));
+
+	gb_fprintf(&f, "Defineable,Default Value,Docs,Location\n");
 	for_array(i, c->info.defineables) {
 		Defineable *def = &c->info.defineables[i];
-		gb_fprintf(&f,"%.*s,%.*s,%.*s\n", LIT(def->name), LIT(def->default_value_str), LIT(def->pos_str));
+
+		gb_string_clear(docs);
+		if (def->docs) {
+			docs = gb_string_appendc(docs, "\"");
+			for (Token const &token : def->docs->list) {
+				for (isize i = 0; i < token.string.len; i++) {
+					u8 c = token.string.text[i];
+				   	if (c == '"') {
+				   		docs = gb_string_appendc(docs, "\"\"");
+				   	} else {
+						docs = gb_string_append_length(docs, &c, 1);
+					}
+				}
+			}
+			docs = gb_string_appendc(docs, "\"");
+		}
+
+		gb_fprintf(&f,"%.*s,%.*s,%s,%.*s\n", LIT(def->name), LIT(def->default_value_str), docs, LIT(def->pos_str));
 	}
 }
 
 gb_internal void show_defineables(Checker *c) {
-	isize max_name_len    = gb_strlen("Defineable");
-	isize max_default_len = gb_strlen("Default Value");
-	isize max_pos_len     = gb_strlen("Location");
-
 	for_array(i, c->info.defineables) {
 		Defineable *def = &c->info.defineables[i];
-		if (def->name.len > max_name_len) {
-			max_name_len = def->name.len;
+		if (has_ansi_terminal_colours()) {
+			gb_printf("\x1b[0;90m");
 		}
-
-		if (def->default_value_str.len > max_default_len) {
-			max_default_len = def->default_value_str.len;
+		printf("%.*s\n", LIT(def->pos_str));
+		if (def->docs) {
+			for (Token const &token : def->docs->list) {
+				gb_printf("%.*s\n", LIT(token.string));
+			}
 		}
-
-		if (def->pos_str.len > max_pos_len) {
-			max_pos_len = def->pos_str.len;
+		if (has_ansi_terminal_colours()) {
+			gb_printf("\x1b[0m");
 		}
-	}
-
-	printf("%-*s - %-*s - %-*s\n",
-		cast(int)max_name_len,    "Defineable",
-		cast(int)max_default_len, "Default Value",
-		cast(int)max_pos_len,     "Location");
-
-	for_array(i, c->info.defineables) {
-		Defineable *def = &c->info.defineables[i];
-		printf("%-*.*s - %-*.*s - %-*.*s\n",
-			cast(int)max_name_len,    LIT(def->name),
-			cast(int)max_default_len, LIT(def->default_value_str),
-			cast(int)max_pos_len,     LIT(def->pos_str));
+		gb_printf("%.*s :: %.*s\n\n", LIT(def->name), LIT(def->default_value_str));
 	}
 }