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gingerBill
2017-11-30 23:09:21 +00:00
parent db632b7e22
commit d75291097e
4 changed files with 119 additions and 29 deletions
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23
src/check_expr.cpp
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@@ -1357,6 +1357,25 @@ void check_is_expressible(Checker *c, Operand *o, Type *type) {
}
bool check_is_not_addressable(Checker *c, Operand *o) {
if (o->mode == Addressing_OptionalOk) {
AstNode *expr = unparen_expr(o->expr);
if (expr->kind != AstNode_TypeAssertion) {
return true;
}
ast_node(ta, TypeAssertion, expr);
TypeAndValue tv = type_and_value_of_expr(&c->info, ta->expr);
if (is_type_pointer(tv.type)) {
return false;
}
if (is_type_union(tv.type) && tv.mode == Addressing_Variable) {
return false;
}
if (is_type_any(tv.type)) {
return false;
}
return true;
}
if (o->mode != Addressing_Variable) {
return true;
}
@@ -1370,10 +1389,6 @@ bool check_is_not_addressable(Checker *c, Operand *o) {
void check_unary_expr(Checker *c, Operand *o, Token op, AstNode *node) {
switch (op.kind) {
case Token_And: { // Pointer address
if (o->mode == Addressing_Type) {
o->type = make_type_pointer(c->allocator, o->type);
return;
}
if (check_is_not_addressable(c, o)) {
if (ast_node_expect(node, AstNode_UnaryExpr)) {
ast_node(ue, UnaryExpr, node);