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80 lines
2.7 KiB
80 lines
2.7 KiB
8 years ago
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// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_CCTEST_SCOPE_TEST_HELPER_H_
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#define V8_CCTEST_SCOPE_TEST_HELPER_H_
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#include "src/ast/scopes.h"
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#include "src/ast/variables.h"
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namespace v8 {
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namespace internal {
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class ScopeTestHelper {
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public:
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static bool MustAllocateInContext(Variable* var) {
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return var->scope()->MustAllocateInContext(var);
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}
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static void CompareScopeToData(Scope* scope, const PreParsedScopeData* data,
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size_t& index, bool precise_maybe_assigned) {
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CHECK(PreParsedScopeData::HasVariablesWhichNeedAllocationData(scope));
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CHECK_GT(data->backing_store_.size(), index + 4);
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CHECK_EQ(data->backing_store_[index++], scope->scope_type());
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CHECK_EQ(data->backing_store_[index++], scope->start_position());
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CHECK_EQ(data->backing_store_[index++], scope->end_position());
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int inner_scope_count = 0;
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for (Scope* inner = scope->inner_scope(); inner != nullptr;
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inner = inner->sibling()) {
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if (PreParsedScopeData::HasVariablesWhichNeedAllocationData(inner)) {
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++inner_scope_count;
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}
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}
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CHECK_EQ(data->backing_store_[index++], inner_scope_count);
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int variable_count = 0;
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for (Variable* local : scope->locals_) {
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if (local->mode() == VAR || local->mode() == LET ||
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local->mode() == CONST) {
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++variable_count;
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}
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}
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CHECK_EQ(data->backing_store_[index++], variable_count);
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for (Variable* local : scope->locals_) {
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if (local->mode() == VAR || local->mode() == LET ||
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local->mode() == CONST) {
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#ifdef DEBUG
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const AstRawString* local_name = local->raw_name();
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int name_length = data->backing_store_[index++];
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CHECK_EQ(name_length, local_name->length());
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for (int i = 0; i < name_length; ++i) {
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CHECK_EQ(data->backing_store_[index++], local_name->raw_data()[i]);
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}
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#endif
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CHECK_EQ(data->backing_store_[index++], local->location());
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if (precise_maybe_assigned) {
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CHECK_EQ(data->backing_store_[index++], local->maybe_assigned());
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} else {
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STATIC_ASSERT(kMaybeAssigned > kNotAssigned);
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CHECK_GE(data->backing_store_[index++], local->maybe_assigned());
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}
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}
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}
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for (Scope* inner = scope->inner_scope(); inner != nullptr;
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inner = inner->sibling()) {
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if (PreParsedScopeData::HasVariablesWhichNeedAllocationData(inner)) {
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CompareScopeToData(inner, data, index, precise_maybe_assigned);
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}
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}
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}
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};
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} // namespace internal
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} // namespace v8
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#endif // V8_CCTEST_SCOPE_TEST_HELPER_H_
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