b8b4a443b8
Now that all backends use the source position builder to record source positions, simplify the code line logging events to take a source position table on code creation. This means that the source position table builder no longer needs to access the isolate until the table is generated. This is required for off-thread bytecode generation. BUG=v8:5203 Review-Url: https://codereview.chromium.org/2248673002 Cr-Commit-Position: refs/heads/master@{#38676}
93 lines
2.8 KiB
C++
93 lines
2.8 KiB
C++
// Copyright 2016 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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#include "src/v8.h"
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#include "src/objects.h"
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#include "src/source-position-table.h"
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#include "test/unittests/test-utils.h"
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namespace v8 {
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namespace internal {
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namespace interpreter {
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class SourcePositionTableTest : public TestWithIsolateAndZone {
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public:
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SourcePositionTableTest() {}
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~SourcePositionTableTest() override {}
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};
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// Some random offsets, mostly at 'suspicious' bit boundaries.
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static int offsets[] = {0, 1, 2, 3, 4, 30, 31, 32,
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33, 62, 63, 64, 65, 126, 127, 128,
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129, 250, 1000, 9999, 12000, 31415926};
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TEST_F(SourcePositionTableTest, EncodeStatement) {
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SourcePositionTableBuilder builder(zone());
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for (int i = 0; i < arraysize(offsets); i++) {
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builder.AddPosition(offsets[i], offsets[i], true);
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}
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// To test correctness, we rely on the assertions in ToSourcePositionTable().
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// (Also below.)
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CHECK(!builder.ToSourcePositionTable(isolate(), Handle<AbstractCode>())
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.is_null());
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}
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TEST_F(SourcePositionTableTest, EncodeStatementDuplicates) {
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SourcePositionTableBuilder builder(zone());
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for (int i = 0; i < arraysize(offsets); i++) {
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builder.AddPosition(offsets[i], offsets[i], true);
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builder.AddPosition(offsets[i], offsets[i] + 1, true);
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}
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// To test correctness, we rely on the assertions in ToSourcePositionTable().
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// (Also below.)
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CHECK(!builder.ToSourcePositionTable(isolate(), Handle<AbstractCode>())
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.is_null());
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}
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TEST_F(SourcePositionTableTest, EncodeExpression) {
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SourcePositionTableBuilder builder(zone());
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for (int i = 0; i < arraysize(offsets); i++) {
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builder.AddPosition(offsets[i], offsets[i], false);
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}
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CHECK(!builder.ToSourcePositionTable(isolate(), Handle<AbstractCode>())
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.is_null());
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}
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TEST_F(SourcePositionTableTest, EncodeAscending) {
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SourcePositionTableBuilder builder(zone());
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int code_offset = 0;
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int source_position = 0;
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for (int i = 0; i < arraysize(offsets); i++) {
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code_offset += offsets[i];
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source_position += offsets[i];
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if (i % 2) {
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builder.AddPosition(code_offset, source_position, true);
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} else {
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builder.AddPosition(code_offset, source_position, false);
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}
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}
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// Also test negative offsets for source positions:
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for (int i = 0; i < arraysize(offsets); i++) {
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code_offset += offsets[i];
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source_position -= offsets[i];
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if (i % 2) {
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builder.AddPosition(code_offset, source_position, true);
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} else {
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builder.AddPosition(code_offset, source_position, false);
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}
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}
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CHECK(!builder.ToSourcePositionTable(isolate(), Handle<AbstractCode>())
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.is_null());
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}
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} // namespace interpreter
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} // namespace internal
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} // namespace v8
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