Add CheckerInfo API functions

src/checker.cpp

@@ -757,7 +757,6 @@ void destroy_checker(Checker *c) {
 }
 
 
-
 Entity *entity_of_ident(CheckerInfo *i, AstNode *identifier) {
 	if (identifier->kind == AstNode_Ident) {
 		Entity **found = map_get(&i->definitions, hash_pointer(identifier));
@@ -772,7 +771,6 @@ Entity *entity_of_ident(CheckerInfo *i, AstNode *identifier) {
 	return NULL;
 }
 
-
 TypeAndValue type_and_value_of_expr(CheckerInfo *i, AstNode *expression) {
 	TypeAndValue result = {};
 	TypeAndValue *found = map_get(&i->types, hash_pointer(expression));
@@ -780,7 +778,6 @@ TypeAndValue type_and_value_of_expr(CheckerInfo *i, AstNode *expression) {
 	return result;
 }
 
-
 Type *type_of_expr(CheckerInfo *i, AstNode *expr) {
 	TypeAndValue tav = type_and_value_of_expr(i, expr);
 	if (tav.mode != Addressing_Invalid) {
@@ -796,6 +793,41 @@ Type *type_of_expr(CheckerInfo *i, AstNode *expr) {
 	return NULL;
 }
 
+Entity *implicit_entity_of_node(CheckerInfo *i, AstNode *clause) {
+	Entity **found = map_get(&i->implicits, hash_pointer(clause));
+	if (found != NULL) {
+		return *found;
+	}
+	return NULL;
+}
+
+DeclInfo *decl_info_of_entity(CheckerInfo *i, Entity *e) {
+	if (e != NULL) {
+		DeclInfo **found = map_get(&i->entities, hash_pointer(e));
+		if (found != NULL) {
+			return *found;
+		}
+	}
+	return NULL;
+}
+
+DeclInfo *decl_info_of_ident(CheckerInfo *i, AstNode *ident) {
+	return decl_info_of_entity(i, entity_of_ident(i, ident));
+}
+
+AstFile *ast_file_of_filename(CheckerInfo *i, String filename) {
+	AstFile **found = map_get(&i->files, hash_string(filename));
+	if (found != NULL) {
+		return *found;
+	}
+	return NULL;
+}
+
+
+
+
+
+
 
 void add_untyped(CheckerInfo *i, AstNode *expression, bool lhs, AddressingMode mode, Type *basic_type, ExactValue value) {
 	map_set(&i->untyped, hash_pointer(expression), make_expr_info(lhs, mode, basic_type, value));
@@ -906,6 +938,9 @@ void add_implicit_entity(Checker *c, AstNode *node, Entity *e) {
 }
 
 
+
+
+
 void add_type_info_type(Checker *c, Type *t) {
 	if (t == NULL) {
 		return;