08f68102f8
Declare Variables with a name and position, rather than by passing through a VariableProxy. This allows us to not create dummy proxies for things like function declarations, and allows us to consider those declarations unused. As a side-effect, we also have to check if a variable is unused in the bytecode generator (as it will no longer be allocated), and we end up skip generating code/SFIs for dead variables/functions. Change-Id: I4c2c872473f23e124f9456b4b92f87159658f8e0 Reviewed-on: https://chromium-review.googlesource.com/c/1414916 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#59088}
237 lines
14 KiB
JavaScript
237 lines
14 KiB
JavaScript
// 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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let {session, contextGroup, Protocol} = InspectorTest.start('Test for Debugger.getPossibleBreakpoints');
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Protocol.Runtime.enable();
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Protocol.Debugger.enable();
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InspectorTest.runTestSuite([
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function getPossibleBreakpointsInRange(next) {
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var source = 'function foo(){ return Promise.resolve(); }\nfunction boo(){ return Promise.resolve().then(() => 42); }\n\n';
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var scriptId;
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compileScript(source)
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.then(id => scriptId = id)
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.then(() => InspectorTest.log('Test start.scriptId != end.scriptId.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 0, scriptId: scriptId }, end: { lineNumber: 0, columnNumber: 0, scriptId: scriptId + '0' }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test not existing scriptId.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 0, scriptId: '-1' }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test end < start.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 1, columnNumber: 0, scriptId: scriptId }, end: { lineNumber: 0, columnNumber: 0, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test empty range in first line.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 16, scriptId: scriptId }, end: { lineNumber: 0, columnNumber: 16, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test one character range in first line.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 16, scriptId: scriptId }, end: { lineNumber: 0, columnNumber: 17, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test empty range in not first line.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 1, columnNumber: 16, scriptId: scriptId }, end: { lineNumber: 1, columnNumber: 16, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test one character range in not first line.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 1, columnNumber: 16, scriptId: scriptId }, end: { lineNumber: 1, columnNumber: 17, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test end is undefined'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 0, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test end.lineNumber > scripts.lineCount()'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 0, scriptId: scriptId }, end: { lineNumber: 5, columnNumber: 0, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test one string'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 0, scriptId: scriptId }, end: { lineNumber: 1, columnNumber: 0, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(() => InspectorTest.log('Test end.columnNumber > end.line.length(), should be the same as previous.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 0, scriptId: scriptId }, end: { lineNumber: 0, columnNumber: 256, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(next);
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},
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function getPossibleBreakpointsInArrow(next) {
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var source = 'function foo() { return Promise.resolve().then(() => 239).then(() => 42).then(() => () => 42) }';
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var scriptId;
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compileScript(source)
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.then(id => scriptId = id)
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 0, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source))
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.then(next);
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},
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function arrowFunctionFirstLine(next) {
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Protocol.Debugger.onPaused(message => dumpBreakLocationInSourceAndResume(message, source));
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var source = `function foo1() { Promise.resolve().then(() => 42) }
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function foo2() { Promise.resolve().then(() => 42) }`;
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waitForPossibleBreakpoints(source, { lineNumber: 0, columnNumber: 0 }, { lineNumber: 1, columnNumber: 0 })
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.then(message => dumpAllLocations(message, source))
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.then(setAllBreakpoints)
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.then(() => Protocol.Runtime.evaluate({ expression: 'foo1(); foo2()'}))
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.then(next);
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},
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function arrowFunctionOnPause(next) {
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var source = `debugger; function foo3() { Promise.resolve().then(() => 42) }
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function foo4() { Promise.resolve().then(() => 42) };\nfoo3();\nfoo4();`;
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waitForPossibleBreakpointsOnPause(source, { lineNumber: 0, columnNumber: 0 }, undefined, next)
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.then(message => dumpAllLocations(message, source))
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.then(setAllBreakpoints)
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.then(() => Protocol.Debugger.onPaused(message => dumpBreakLocationInSourceAndResume(message, source)))
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.then(() => Protocol.Debugger.resume());
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},
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function getPossibleBreakpointsInRangeWithOffset(next) {
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var source = 'function foo(){ return Promise.resolve(); }\nfunction boo(){ return Promise.resolve().then(() => 42); }\n\n';
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var scriptId;
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compileScript(source, { name: 'with-offset.js', line_offset: 1, column_offset: 1 })
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.then(id => scriptId = id)
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.then(() => InspectorTest.log('Test empty range in first line.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 1, columnNumber: 17, scriptId: scriptId }, end: { lineNumber: 1, columnNumber: 17, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source, 1, 1))
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.then(() => InspectorTest.log('Test one character range in first line.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 1, columnNumber: 17, scriptId: scriptId }, end: { lineNumber: 1, columnNumber: 18, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source, 1, 1))
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.then(() => InspectorTest.log('Test empty range in not first line.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 2, columnNumber: 16, scriptId: scriptId }, end: { lineNumber: 2, columnNumber: 16, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source, 1, 1))
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.then(() => InspectorTest.log('Test one character range in not first line.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 2, columnNumber: 16, scriptId: scriptId }, end: { lineNumber: 2, columnNumber: 17, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source, 1, 1))
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.then(() => InspectorTest.log('Test end is undefined'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 0, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source, 1, 1))
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.then(() => InspectorTest.log('Test end.lineNumber > scripts.lineCount()'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber: 0, scriptId: scriptId }, end: { lineNumber: 5, columnNumber: 0, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source, 1, 1))
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.then(() => InspectorTest.log('Test one string'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 1, columnNumber: 1, scriptId: scriptId }, end: { lineNumber: 2, columnNumber: 0, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source, 1, 1))
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.then(() => InspectorTest.log('Test end.columnNumber > end.line.length(), should be the same as previous.'))
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 1, columnNumber: 1, scriptId: scriptId }, end: { lineNumber: 1, columnNumber: 256, scriptId: scriptId }}))
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.then(message => dumpAllLocations(message, source, 1, 1))
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.then(next);
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},
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function withOffset(next) {
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Protocol.Debugger.onPaused(message => dumpBreakLocationInSourceAndResume(message, source, 3, 18));
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var source = `function foo5() { Promise.resolve().then(() => 42) }
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function foo6() { Promise.resolve().then(() => 42) }
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`;
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waitForPossibleBreakpoints(source, { lineNumber: 0, columnNumber: 0 }, undefined, { name: 'with-offset.js', line_offset: 3, column_offset: 18 })
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.then(message => dumpAllLocations(message, source, 3, 18))
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.then(setAllBreakpoints)
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.then(() => Protocol.Runtime.evaluate({ expression: 'foo5(); foo6()'}))
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.then(next);
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},
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function arrowFunctionReturn(next) {
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function checkSource(source, location) {
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return waitForPossibleBreakpoints(source, location)
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.then(message => dumpAllLocations(message, source));
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}
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checkSource('() => 239\n', { lineNumber: 0, columnNumber: 0 })
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.then(() => checkSource('function foo() { function boo() { return 239 } }\n', { lineNumber: 0, columnNumber: 0 }))
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.then(() => checkSource('function foo() { function boo() { return 239 }; boo }\n', { lineNumber: 0, columnNumber: 0 }))
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.then(() => checkSource('function foo() { let boo = function() { return 239 }; }\n', { lineNumber: 0, columnNumber: 0 }))
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.then(() => checkSource('() => { 239 }\n', { lineNumber: 0, columnNumber: 0 }))
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.then(() => checkSource('function foo() { 239 }\n', { lineNumber: 0, columnNumber: 0 }))
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// TODO(kozyatinskiy): lineNumber for return position should be only 9, not 8.
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.then(() => checkSource('() => 239', { lineNumber: 0, columnNumber: 0 }))
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.then(() => checkSource('() => { return 239 }', { lineNumber: 0, columnNumber: 0 }))
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.then(next);
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},
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function argumentsAsCalls(next) {
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var source = 'function foo(){}\nfunction boo(){}\nfunction main(f1,f2){}\nmain(foo(), boo());\n';
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waitForPossibleBreakpoints(source, { lineNumber: 0, columnNumber: 0 })
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.then(message => dumpAllLocations(message, source))
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.then(next);
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}
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]);
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function compileScript(source, origin) {
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var promise = Protocol.Debugger.onceScriptParsed().then(message => message.params.scriptId);
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if (!origin) origin = { name: '', line_offset: 0, column_offset: 0 };
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contextGroup.addScript(source, origin.line_offset, origin.column_offset, origin.name);
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return promise;
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}
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function waitForPossibleBreakpoints(source, start, end, origin) {
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return compileScript(source, origin)
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.then(scriptId => { (start || {}).scriptId = scriptId; (end || {}).scriptId = scriptId })
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: start, end: end }));
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}
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function waitForPossibleBreakpointsOnPause(source, start, end, next) {
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var promise = Protocol.Debugger.oncePaused()
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.then(msg => { (start || {}).scriptId = msg.params.callFrames[0].location.scriptId; (end || {}).scriptId = msg.params.callFrames[0].location.scriptId })
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.then(() => Protocol.Debugger.getPossibleBreakpoints({ start: start, end: end }));
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Protocol.Runtime.evaluate({ expression: source }).then(next);
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return promise;
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}
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function setAllBreakpoints(message) {
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var promises = [];
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for (var location of message.result.locations)
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promises.push(Protocol.Debugger.setBreakpoint({ location: location }).then(checkBreakpoint));
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return Promise.all(promises);
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}
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function checkBreakpoint(message) {
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if (message.error) {
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InspectorTest.log('FAIL: error in setBreakpoint');
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InspectorTest.logMessage(message);
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return;
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}
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var id_data = message.result.breakpointId.split(':');
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if (parseInt(id_data[1]) !== message.result.actualLocation.lineNumber || parseInt(id_data[2]) !== message.result.actualLocation.columnNumber) {
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InspectorTest.log('FAIL: possible breakpoint was resolved in another location');
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}
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}
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function dumpAllLocations(message, source, lineOffset, columnOffset) {
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if (message.error) {
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InspectorTest.logMessage(message);
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return;
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}
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lineOffset = lineOffset || 0;
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columnOffset = columnOffset || 0;
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var sourceLines = source.split('\n')
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var lineOffsets = Array(sourceLines.length).fill(0);
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for (var location of message.result.locations) {
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var lineNumber = location.lineNumber - lineOffset;
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var columnNumber = lineNumber !== 0 ? location.columnNumber : location.columnNumber - columnOffset;
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var line = sourceLines[lineNumber] || '';
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var offset = lineOffsets[lineNumber];
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line = line.slice(0, columnNumber + offset) + '#' + line.slice(columnNumber + offset);
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++lineOffsets[lineNumber];
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sourceLines[lineNumber] = line;
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}
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InspectorTest.log(sourceLines.join('\n'));
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return message;
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}
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function dumpBreakLocationInSourceAndResume(message, source, lineOffset, columnOffset) {
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lineOffset = lineOffset || 0;
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columnOffset = columnOffset || 0;
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InspectorTest.log('paused in ' + message.params.callFrames[0].functionName);
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var location = message.params.callFrames[0].location;
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var sourceLines = source.split('\n')
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var lineNumber = location.lineNumber - lineOffset;
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var columnNumber = lineNumber !== 0 ? location.columnNumber : location.columnNumber - columnOffset;
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var line = sourceLines[lineNumber];
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line = line.slice(0, columnNumber) + '^' + line.slice(columnNumber);
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sourceLines[lineNumber] = line;
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InspectorTest.log(sourceLines.join('\n'));
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Protocol.Debugger.resume();
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}
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