v8/test/inspector/debugger/get-possible-breakpoints-restrict-to-function.js

// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

InspectorTest.log('Checks Debugger.getPossibleBreakpoints with ignoreNestedFunctions');

var source = `
function test() {
  Array.from([1,2]).map(() => 1).filter(() => true);
  function nested1() {
    Array.from([1,2]).map(() => 1).filter(() => true);
  }
  function nested2() {
    Array.from([1,2]).map(() => 1).filter(() => true);
  }
  nested1();
  nested2();
}
//# sourceURL=test.js`;
InspectorTest.addScript(source);

var scriptId;
Protocol.Debugger.onceScriptParsed().then(message => {
  if (message.params.url === 'test.js')
    scriptId = message.params.scriptId;
}).then(() => InspectorTest.runTestSuite(tests));

InspectorTest.setupScriptMap();
Protocol.Debugger.onPaused(dumpBreakLocationInSourceAndResume);

Protocol.Debugger.enable();
var tests = [
  function testWholeFunction(next) {
    Protocol.Debugger.getPossibleBreakpoints({ start: location(1, 18), ignoreNestedFunctions: false })
      .then(dumpAllLocations)
      .then(next);
  },

  function testWholeFunctionWithoutNested(next) {
    Protocol.Debugger.getPossibleBreakpoints({ start: location(1, 18), ignoreNestedFunctions: true })
      .then(dumpAllLocations)
      .then(next);
  },

  function testPartOfFunctionWithoutNested(next) {
    Protocol.Debugger.getPossibleBreakpoints({ start: location(1, 18), end: location(2, 18), ignoreNestedFunctions: true })
      .then(dumpAllLocations)
      .then(next);
  },

  function testNestedFunction(next) {
    Protocol.Debugger.getPossibleBreakpoints({ start: location(4, 0), ignoreNestedFunctions: true })
      .then(dumpAllLocations)
      .then(setAllBreakpoints)
      .then(() => InspectorTest.log('Run test() to check breakpoints..'))
      .then(() => Protocol.Runtime.evaluate({ expression: 'test()' }))
      .then(next);
  }
];

function location(lineNumber, columnNumber) {
  return { lineNumber: lineNumber, columnNumber: columnNumber, scriptId: scriptId };
}

function setAllBreakpoints(message) {
  var promises = [];
  for (var location of message.result.locations)
    promises.push(Protocol.Debugger.setBreakpoint({ location: location }).then(checkBreakpoint));
  return Promise.all(promises);
}

function checkBreakpoint(message) {
  if (message.error) {
    InspectorTest.log('FAIL: error in setBreakpoint');
    InspectorTest.logMessage(message);
    return;
  }
  var id_data = message.result.breakpointId.split(':');
  if (parseInt(id_data[1]) !== message.result.actualLocation.lineNumber || parseInt(id_data[2]) !== message.result.actualLocation.columnNumber) {
    InspectorTest.log('FAIL: possible breakpoint was resolved in another location');
  }
}

function dumpAllLocations(message) {
  if (message.error) {
    InspectorTest.logMessage(message);
    return;
  }

  var sourceLines = source.split('\n')
  var lineOffsets = Array(sourceLines.length).fill(0);
  for (var location of message.result.locations) {
    var lineNumber = location.lineNumber;
    var columnNumber = location.columnNumber;
    var line = sourceLines[lineNumber] || '';
    var offset = lineOffsets[lineNumber];
    line = line.slice(0, columnNumber + offset) + '#' + line.slice(columnNumber + offset);
    ++lineOffsets[lineNumber];
    sourceLines[lineNumber] = line;
  }
  InspectorTest.log(sourceLines.join('\n'));
  return message;
}

function dumpBreakLocationInSourceAndResume(message) {
  InspectorTest.logCallFrames([ message.params.callFrames[0] ]);

  var location = message.params.callFrames[0].location;
  var sourceLines = source.split('\n')

  var lineNumber = location.lineNumber
  var columnNumber = location.columnNumber;

  var line = sourceLines[lineNumber];
  line = line.slice(0, columnNumber) + '^' + line.slice(columnNumber);
  sourceLines[lineNumber] = line;
  InspectorTest.log(sourceLines.join('\n'));
  InspectorTest.log('');
  Protocol.Debugger.resume();
}