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Remove empty union check on array types; Fix overflowing error printing

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This commit is contained in:
Ginger Bill
2017-07-29 13:01:17 +01:00
parent 1df4aa90ce
commit 24c812115e
4 changed files with 59 additions and 61 deletions
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81
src/check_expr.cpp
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@@ -2790,6 +2790,38 @@ Type *make_optional_ok_type(gbAllocator a, Type *value) {
return t;
}
void generate_map_struct_type(gbAllocator a, Type *type) {
GB_ASSERT(type->kind == Type_Map);
if (type->Map.generated_struct_type != NULL) return;
Type *generated_struct_type = make_type_struct(a);
/*
struct {
hashes: [dynamic]int;
entries; [dynamic]EntryType;
}
*/
AstNode *dummy_node = gb_alloc_item(a, AstNode);
dummy_node->kind = AstNode_Invalid;
Scope *s = make_scope(universal_scope, a);
Type *hashes_type = make_type_dynamic_array(a, t_int);
Type *entries_type = make_type_dynamic_array(a, type->Map.entry_type);
Array<Entity *> fields = {};
array_init(&fields, a, 2);
array_add(&fields, make_entity_field(a, s, make_token_ident(str_lit("hashes")), hashes_type, false, 0));
array_add(&fields, make_entity_field(a, s, make_token_ident(str_lit("entries")), entries_type, false, 1));
generated_struct_type->Struct.fields = fields;
generated_struct_type->Struct.fields_in_src_order = fields;
type_set_offsets(a, generated_struct_type);
type->Map.generated_struct_type = generated_struct_type;
}
void check_map_type(Checker *c, Type *type, AstNode *node) {
GB_ASSERT(type->kind == Type_Map);
ast_node(mt, MapType, node);
@@ -2854,35 +2886,7 @@ void check_map_type(Checker *c, Type *type, AstNode *node) {
type->Map.entry_type = entry_type;
}
{
Type *generated_struct_type = make_type_struct(a);
/*
struct {
hashes: [dynamic]int,
entries; [dynamic]Entry_Type,
}
*/
AstNode *dummy_node = gb_alloc_item(a, AstNode);
dummy_node->kind = AstNode_Invalid;
check_open_scope(c, dummy_node);
Type *hashes_type = make_type_dynamic_array(a, t_int);
Type *entries_type = make_type_dynamic_array(a, type->Map.entry_type);
Array<Entity *> fields = {};
array_init(&fields, a, 2);
array_add(&fields, make_entity_field(a, c->context.scope, make_token_ident(str_lit("hashes")), hashes_type, false, 0));
array_add(&fields, make_entity_field(a, c->context.scope, make_token_ident(str_lit("entries")), entries_type, false, 1));
check_close_scope(c);
generated_struct_type->Struct.fields = fields;
generated_struct_type->Struct.fields_in_src_order = fields;
type_set_offsets(a, generated_struct_type);
type->Map.generated_struct_type = generated_struct_type;
}
generate_map_struct_type(a, type);
type->Map.lookup_result_type = make_optional_ok_type(a, value);
@@ -3021,19 +3025,9 @@ bool check_type_internal(Checker *c, AstNode *e, Type **type, Type *named_type)
error(at->count, "... can only be used in conjuction with compound literals");
count = 0;
}
if (is_type_empty_union(elem)) {
gbString str = type_to_string(elem);
error(at->elem, "An empty union `%s` is not allowed as an array element type", str);
gb_string_free(str);
}
*type = make_type_array(c->allocator, elem, count);
} else {
Type *elem = check_type(c, at->elem);
if (is_type_empty_union(elem)) {
gbString str = type_to_string(elem);
error(at->elem, "An empty union `%s` is not allowed as an slice element type", str);
gb_string_free(str);
}
*type = make_type_slice(c->allocator, elem);
}
return true;
@@ -3041,11 +3035,6 @@ bool check_type_internal(Checker *c, AstNode *e, Type **type, Type *named_type)
case_ast_node(dat, DynamicArrayType, e);
Type *elem = check_type(c, dat->elem);
if (is_type_empty_union(elem)) {
gbString str = type_to_string(elem);
error(dat->elem, "An empty union `%s` is not allowed as an dynamic array element type", str);
gb_string_free(str);
}
*type = make_type_dynamic_array(c->allocator, elem);
return true;
case_end;
@@ -3408,7 +3397,7 @@ bool check_representable_as_constant(Checker *c, ExactValue in_value, Type *type
}
return false;
}else if (is_type_pointer(type)) {
} else if (is_type_pointer(type)) {
if (in_value.kind == ExactValue_Pointer) {
return true;
}
@@ -3441,7 +3430,7 @@ void check_is_expressible(Checker *c, Operand *o, Type *type) {
} else {
str = i128_to_string(i, buf, gb_size_of(buf));
}
error(o->expr, "`%s = %.*s` overflows `%s`", a, str, b);
error(o->expr, "`%s = %.*s` overflows `%s`", a, LIT(str), b);
}
} else {
error(o->expr, "Cannot convert `%s` to `%s`", a, b);