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Remove constant from switch for strings

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This commit is contained in:
gingerBill
2018-02-17 18:22:43 +00:00
parent c4d2d287fc
commit c341597657
2 changed files with 14 additions and 16 deletions
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src/check_stmt.cpp
+8 -10
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@@ -745,7 +745,8 @@ void check_switch_stmt(Checker *c, AstNode *node, u32 mod_flags) {
} }
if (a1.mode != Addressing_Invalid && if (a1.mode != Addressing_Invalid &&
lhs.mode == Addressing_Constant && rhs.mode == Addressing_Constant) { lhs.mode == Addressing_Constant && rhs.mode == Addressing_Constant &&
!is_type_string(lhs.type) && !is_type_string(rhs.type)) {
ExactValue start = lhs.value; ExactValue start = lhs.value;
ExactValue end = rhs.value; ExactValue end = rhs.value;
ExactValue one = exact_value_i64(1); ExactValue one = exact_value_i64(1);
@@ -950,9 +951,9 @@ void check_type_switch_stmt(Checker *c, AstNode *node, u32 mod_flags) {
return; return;
} }
Map<bool> seen = {}; // Key: Type * PtrSet<Type *> seen = {};
map_init(&seen, heap_allocator()); ptr_set_init(&seen, heap_allocator());
defer (map_destroy(&seen)); defer (ptr_set_destroy(&seen));
for_array(i, bs->stmts) { for_array(i, bs->stmts) {
AstNode *stmt = bs->stmts[i]; AstNode *stmt = bs->stmts[i];
@@ -995,9 +996,7 @@ void check_type_switch_stmt(Checker *c, AstNode *node, u32 mod_flags) {
GB_PANIC("Unknown type to type switch statement"); GB_PANIC("Unknown type to type switch statement");
} }
HashKey key = hash_type(y.type); if (ptr_set_exists(&seen, y.type)) {
bool *found = map_get(&seen, key);
if (found) {
TokenPos pos = cc->token.pos; TokenPos pos = cc->token.pos;
gbString expr_str = expr_to_string(y.expr); gbString expr_str = expr_to_string(y.expr);
error(y.expr, error(y.expr,
@@ -1008,7 +1007,7 @@ void check_type_switch_stmt(Checker *c, AstNode *node, u32 mod_flags) {
gb_string_free(expr_str); gb_string_free(expr_str);
break; break;
} }
map_set(&seen, key, cast(bool)true); ptr_set_add(&seen, y.type);
} }
} }
@@ -1053,8 +1052,7 @@ void check_type_switch_stmt(Checker *c, AstNode *node, u32 mod_flags) {
for_array(i, variants) { for_array(i, variants) {
Type *t = variants[i]; Type *t = variants[i];
auto found = map_get(&seen, hash_type(t)); if (!ptr_set_exists(&seen, t)) {
if (!found) {
array_add(&unhandled, t); array_add(&unhandled, t);
} }
} }