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Fix #1076

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This commit is contained in:
gingerBill
2021-08-13 10:45:29 +01:00
parent 7afc367275
commit 367bf0c7ae
2 changed files with 14 additions and 3 deletions
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15
src/check_expr.cpp
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@@ -2571,6 +2571,14 @@ bool is_ise_expr(Ast *node) {
return node->kind == Ast_ImplicitSelectorExpr;
}
bool can_use_other_type_as_type_hint(bool use_lhs_as_type_hint, Type *other_type) {
if (use_lhs_as_type_hint) { // RHS in this case
return other_type != nullptr && other_type != t_invalid && is_type_typed(other_type);
}
return false;
}
void check_binary_expr(CheckerContext *c, Operand *x, Ast *node, Type *type_hint, bool use_lhs_as_type_hint=false) {
GB_ASSERT(node->kind == Ast_BinaryExpr);
Operand y_ = {}, *y = &y_;
@@ -2707,14 +2715,14 @@ void check_binary_expr(CheckerContext *c, Operand *x, Ast *node, Type *type_hint
// Evalute the right before the left for an '.X' expression
check_expr_or_type(c, y, be->right, type_hint);
if (use_lhs_as_type_hint) { // RHS in this case
if (can_use_other_type_as_type_hint(use_lhs_as_type_hint, y->type)) { // RHS in this case
check_expr_or_type(c, x, be->left, y->type);
} else {
check_expr_with_type_hint(c, x, be->left, type_hint);
}
} else {
check_expr_with_type_hint(c, x, be->left, type_hint);
if (use_lhs_as_type_hint) {
if (can_use_other_type_as_type_hint(use_lhs_as_type_hint, x->type)) {
check_expr_with_type_hint(c, y, be->right, x->type);
} else {
check_expr_with_type_hint(c, y, be->right, type_hint);
@@ -6598,6 +6606,9 @@ ExprKind check_expr_base_internal(CheckerContext *c, Operand *o, Ast *node, Type
case_ast_node(cl, CompoundLit, node);
Type *type = type_hint;
if (type != nullptr && is_type_untyped(type)) {
type = nullptr;
}
bool is_to_be_determined_array_count = false;
bool is_constant = true;
if (cl->type != nullptr) {