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-rw-r--r--typecheck.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/typecheck.c b/typecheck.c
index be21948c..332f68e1 100644
--- a/typecheck.c
+++ b/typecheck.c
@@ -764,11 +764,18 @@ type_t *get_type(env_t *env, ast_t *ast)
if (streq(call->name, "bump")) return Type(VoidType);
else if (streq(call->name, "clear")) return Type(VoidType);
else if (streq(call->name, "get")) return table->value_type;
- else if (streq(call->name, "has")) return Type(BoolType);
+ else if (streq(call->name, "get_or_null")) {
+ if (table->value_type->tag != PointerType)
+ code_err(ast, "The table method :get_or_null() is only supported for tables whose value type is a pointer, not %T",
+ table->value_type);
+ auto ptr = Match(table->value_type, PointerType);
+ return Type(PointerType, .pointed=ptr->pointed, .is_stack=ptr->is_stack,
+ .is_readonly=ptr->is_readonly, .is_optional=true);
+ } else if (streq(call->name, "has")) return Type(BoolType);
else if (streq(call->name, "remove")) return Type(VoidType);
else if (streq(call->name, "set")) return Type(VoidType);
else if (streq(call->name, "sorted")) return self_value_t;
- else code_err(ast, "There is no '%s' method for tables", call->name);
+ code_err(ast, "There is no '%s' method for %T tables", call->name, self_value_t);
}
default: {
type_t *fn_type_t = get_method_type(env, call->self, call->name);