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perf(change_detection): do not check intermediate results

This commit is contained in:
vsavkin 2015-07-28 15:57:05 -07:00
parent f7d7789915
commit c1ee943533
13 changed files with 299 additions and 70 deletions
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40
modules/angular2/src/change_detection/change_detection_jit_generator.ts
View File

@ -71,7 +71,6 @@ export class ChangeDetectorJITGenerator {
return new ${this._typeName}(dispatcher, protos, directiveRecords);
}
`;
return new Function('AbstractChangeDetector', 'ChangeDetectionUtil', 'protos',
'directiveRecords', classDefinition)(
AbstractChangeDetector, ChangeDetectionUtil, this.records, this.directiveRecords);
@ -171,7 +170,6 @@ export class ChangeDetectorJITGenerator {
var oldValue = this._names.getFieldName(r.selfIndex);
var newValue = this._names.getLocalName(r.selfIndex);
var change = this._names.getChangeName(r.selfIndex);
var pipe = this._names.getPipeName(r.selfIndex);
var cdRef = "this.ref";
@ -179,7 +177,7 @@ export class ChangeDetectorJITGenerator {
var protoIndex = r.selfIndex - 1;
var pipeType = r.name;
return `
var read = `
${this._names.getCurrentProtoName()} = ${this._names.getProtosName()}[${protoIndex}];
if (${pipe} === ${UTIL}.uninitialized) {
${pipe} = ${this._names.getPipesAccessorName()}.get('${pipeType}', ${context}, ${cdRef});
@ -187,16 +185,20 @@ export class ChangeDetectorJITGenerator {
${pipe}.onDestroy();
${pipe} = ${this._names.getPipesAccessorName()}.get('${pipeType}', ${context}, ${cdRef});
}
${newValue} = ${pipe}.transform(${context}, [${argString}]);
`;
var check = `
if (${oldValue} !== ${newValue}) {
${newValue} = ${UTIL}.unwrapValue(${newValue});
${change} = true;
${newValue} = ${UTIL}.unwrapValue(${newValue})
${this._genChangeMarker(r)}
${this._genUpdateDirectiveOrElement(r)}
${this._genAddToChanges(r)}
${oldValue} = ${newValue};
}
`;
return r.shouldBeChecked() ? `${read}${check}` : read;
}
_genReferenceCheck(r: ProtoRecord): string {
@ -204,22 +206,32 @@ export class ChangeDetectorJITGenerator {
var newValue = this._names.getLocalName(r.selfIndex);
var protoIndex = r.selfIndex - 1;
var check = `
var read = `
${this._names.getCurrentProtoName()} = ${this._names.getProtosName()}[${protoIndex}];
${this._genUpdateCurrentValue(r)}
`;
var check = `
if (${newValue} !== ${oldValue}) {
${this._names.getChangeName(r.selfIndex)} = true;
${this._genChangeMarker(r)}
${this._genUpdateDirectiveOrElement(r)}
${this._genAddToChanges(r)}
${oldValue} = ${newValue};
}
`;
var genCode = r.shouldBeChecked() ? `${read}${check}` : read;
if (r.isPureFunction()) {
var condition = r.args.map((a) => this._names.getChangeName(a)).join(" || ");
return `if (${condition}) { ${check} } else { ${newValue} = ${oldValue}; }`;
if (r.isUsedByOtherRecord()) {
return `if (${condition}) { ${genCode} } else { ${newValue} = ${oldValue}; }`;
} else {
return check;
return `if (${condition}) { ${genCode} }`;
}
} else {
return genCode;
}
}
@ -267,6 +279,10 @@ export class ChangeDetectorJITGenerator {
rhs = `${UTIL}.${r.name}(${argString})`;
break;
case RecordType.COLLECTION_LITERAL:
rhs = `${UTIL}.${r.name}(${argString})`;
break;
case RecordType.INTERPOLATE:
rhs = this._genInterpolation(r);
break;
@ -293,6 +309,10 @@ export class ChangeDetectorJITGenerator {
return res;
}
_genChangeMarker(r: ProtoRecord): string {
return r.argumentToPureFunction ? `${this._names.getChangeName(r.selfIndex)} = true` : ``;
}
_genUpdateDirectiveOrElement(r: ProtoRecord): string {
if (!r.lastInBinding) return "";

12
modules/angular2/src/change_detection/coalesce.ts
View File

@ -12,7 +12,7 @@ import {RecordType, ProtoRecord} from './proto_record';
* Records that are last in bindings CANNOT be removed, and instead are
* replaced with very cheap SELF records.
*/
export function coalesce(records: List<ProtoRecord>): List<ProtoRecord> {
export function coalesce(records: ProtoRecord[]): ProtoRecord[] {
var res: List<ProtoRecord> = [];
var indexMap: Map<number, number> = new Map<number, number>();
@ -24,8 +24,13 @@ export function coalesce(records: List<ProtoRecord>): List<ProtoRecord> {
if (isPresent(matchingRecord) && record.lastInBinding) {
res.push(_selfRecord(record, matchingRecord.selfIndex, res.length + 1));
indexMap.set(r.selfIndex, matchingRecord.selfIndex);
matchingRecord.referencedBySelf = true;
} else if (isPresent(matchingRecord) && !record.lastInBinding) {
if (record.argumentToPureFunction) {
matchingRecord.argumentToPureFunction = true;
}
indexMap.set(r.selfIndex, matchingRecord.selfIndex);
} else {
@ -40,7 +45,7 @@ export function coalesce(records: List<ProtoRecord>): List<ProtoRecord> {
function _selfRecord(r: ProtoRecord, contextIndex: number, selfIndex: number): ProtoRecord {
return new ProtoRecord(RecordType.SELF, "self", null, [], r.fixedArgs, contextIndex,
r.directiveIndex, selfIndex, r.bindingRecord, r.expressionAsString,
r.lastInBinding, r.lastInDirective);
r.lastInBinding, r.lastInDirective, false, false);
}
function _findMatching(r: ProtoRecord, rs: List<ProtoRecord>) {
@ -66,7 +71,8 @@ function _replaceIndices(r: ProtoRecord, selfIndex: number, indexMap: Map<any, a
var contextIndex = _map(indexMap, r.contextIndex);
return new ProtoRecord(r.mode, r.name, r.funcOrValue, args, r.fixedArgs, contextIndex,
r.directiveIndex, selfIndex, r.bindingRecord, r.expressionAsString,
r.lastInBinding, r.lastInDirective);
r.lastInBinding, r.lastInDirective, r.argumentToPureFunction,
r.referencedBySelf);
}
function _map(indexMap: Map<any, any>, value: number) {

9
modules/angular2/src/change_detection/codegen_name_util.ts
View File

@ -83,9 +83,14 @@ export class CodegenNameUtil {
if (i == CONTEXT_INDEX) {
declarations.push(`${this.getLocalName(i)} = ${this.getFieldName(i)}`);
} else {
var rec = this.records[i - 1];
if (rec.argumentToPureFunction) {
var changeName = this.getChangeName(i);
declarations.push(`${this.getLocalName(i)},${changeName}`);
assignments.push(changeName);
} else {
declarations.push(`${this.getLocalName(i)}`);
}
}
}
var assignmentsCode =
@ -100,14 +105,18 @@ export class CodegenNameUtil {
getAllFieldNames(): List<string> {
var fieldList = [];
for (var k = 0, kLen = this.getFieldCount(); k < kLen; ++k) {
if (k === 0 || this.records[k - 1].shouldBeChecked()) {
fieldList.push(this.getFieldName(k));
}
}
for (var i = 0, iLen = this.records.length; i < iLen; ++i) {
var rec = this.records[i];
if (rec.isPipeRecord()) {
fieldList.push(this.getPipeName(rec.selfIndex));
}
}
for (var j = 0, jLen = this.directiveRecords.length; j < jLen; ++j) {
var dRec = this.directiveRecords[j];
fieldList.push(this.getDirectiveName(dRec.directiveIndex));

25
modules/angular2/src/change_detection/dynamic_change_detector.ts
View File

@ -150,9 +150,9 @@ export class DynamicChangeDetector extends AbstractChangeDetector<any> {
return null;
}
var prevValue = this._readSelf(proto);
var currValue = this._calculateCurrValue(proto);
if (proto.shouldBeChecked()) {
var prevValue = this._readSelf(proto);
if (!isSame(prevValue, currValue)) {
if (proto.lastInBinding) {
var change = ChangeDetectionUtil.simpleChange(prevValue, currValue);
@ -160,9 +160,7 @@ export class DynamicChangeDetector extends AbstractChangeDetector<any> {
this._writeSelf(proto, currValue);
this._setChanged(proto, true);
return change;
} else {
this._writeSelf(proto, currValue);
this._setChanged(proto, true);
@ -172,6 +170,12 @@ export class DynamicChangeDetector extends AbstractChangeDetector<any> {
this._setChanged(proto, false);
return null;
}
} else {
this._writeSelf(proto, currValue);
this._setChanged(proto, true);
return null;
}
}
_calculateCurrValue(proto: ProtoRecord) {
@ -215,6 +219,7 @@ export class DynamicChangeDetector extends AbstractChangeDetector<any> {
case RecordType.INTERPOLATE:
case RecordType.PRIMITIVE_OP:
case RecordType.COLLECTION_LITERAL:
return FunctionWrapper.apply(proto.funcOrValue, this._readArgs(proto));
default:
@ -227,9 +232,10 @@ export class DynamicChangeDetector extends AbstractChangeDetector<any> {
var args = this._readArgs(proto);
var pipe = this._pipeFor(proto, context);
var prevValue = this._readSelf(proto);
var currValue = pipe.transform(context, args);
if (proto.shouldBeChecked()) {
var prevValue = this._readSelf(proto);
if (!isSame(prevValue, currValue)) {
currValue = ChangeDetectionUtil.unwrapValue(currValue);
@ -251,6 +257,11 @@ export class DynamicChangeDetector extends AbstractChangeDetector<any> {
this._setChanged(proto, false);
return null;
}
} else {
this._writeSelf(proto, currValue);
this._setChanged(proto, true);
return null;
}
}
_pipeFor(proto: ProtoRecord, context) {
@ -284,7 +295,9 @@ export class DynamicChangeDetector extends AbstractChangeDetector<any> {
_writePipe(proto: ProtoRecord, value) { this.localPipes[proto.selfIndex] = value; }
_setChanged(proto: ProtoRecord, value: boolean) { this.changes[proto.selfIndex] = value; }
_setChanged(proto: ProtoRecord, value: boolean) {
if (proto.argumentToPureFunction) this.changes[proto.selfIndex] = value;
}
_pureFuncAndArgsDidNotChange(proto: ProtoRecord): boolean {
return proto.isPureFunction() && !this._argsChanged(proto);

25
modules/angular2/src/change_detection/proto_change_detector.ts
View File

@ -65,11 +65,23 @@ export class ProtoRecordBuilder {
if (isPresent(oldLast) && oldLast.bindingRecord.directiveRecord == b.directiveRecord) {
oldLast.lastInDirective = false;
}
var numberOfRecordsBefore = this.records.length;
this._appendRecords(b, variableNames);
var newLast = ListWrapper.last(this.records);
if (isPresent(newLast) && newLast !== oldLast) {
newLast.lastInBinding = true;
newLast.lastInDirective = true;
this._setArgumentToPureFunction(numberOfRecordsBefore);
}
}
_setArgumentToPureFunction(startIndex: number): void {
for (var i = startIndex; i < this.records.length; ++i) {
var rec = this.records[i];
if (rec.isPureFunction()) {
rec.args.forEach(recordIndex => this.records[recordIndex - 1].argumentToPureFunction =
true);
}
}
}
@ -77,7 +89,7 @@ export class ProtoRecordBuilder {
if (b.isDirectiveLifecycle()) {
this.records.push(new ProtoRecord(RecordType.DIRECTIVE_LIFECYCLE, b.lifecycleEvent, null, [],
[], -1, null, this.records.length + 1, b, null, false,
false));
false, false, false));
} else {
_ConvertAstIntoProtoRecords.append(this.records, b, variableNames);
}
@ -145,12 +157,13 @@ class _ConvertAstIntoProtoRecords implements AstVisitor {
visitLiteralArray(ast: LiteralArray): number {
var primitiveName = `arrayFn${ast.expressions.length}`;
return this._addRecord(RecordType.PRIMITIVE_OP, primitiveName, _arrayFn(ast.expressions.length),
this._visitAll(ast.expressions), null, 0);
return this._addRecord(RecordType.COLLECTION_LITERAL, primitiveName,
_arrayFn(ast.expressions.length), this._visitAll(ast.expressions), null,
0);
}
visitLiteralMap(ast: LiteralMap): number {
return this._addRecord(RecordType.PRIMITIVE_OP, _mapPrimitiveName(ast.keys),
return this._addRecord(RecordType.COLLECTION_LITERAL, _mapPrimitiveName(ast.keys),
ChangeDetectionUtil.mapFn(ast.keys), this._visitAll(ast.values), null,
0);
}
@ -208,11 +221,11 @@ class _ConvertAstIntoProtoRecords implements AstVisitor {
if (context instanceof DirectiveIndex) {
this._records.push(new ProtoRecord(type, name, funcOrValue, args, fixedArgs, -1, context,
selfIndex, this._bindingRecord, this._expressionAsString,
false, false));
false, false, false, false));
} else {
this._records.push(new ProtoRecord(type, name, funcOrValue, args, fixedArgs, context, null,
selfIndex, this._bindingRecord, this._expressionAsString,
false, false));
false, false, false, false));
}
return selfIndex;
}

12
modules/angular2/src/change_detection/proto_record.ts
View File

@ -14,6 +14,7 @@ export enum RecordType {
PIPE,
INTERPOLATE,
SAFE_PROPERTY,
COLLECTION_LITERAL,
SAFE_INVOKE_METHOD,
DIRECTIVE_LIFECYCLE
}
@ -23,10 +24,17 @@ export class ProtoRecord {
public args: List<any>, public fixedArgs: List<any>, public contextIndex: number,
public directiveIndex: DirectiveIndex, public selfIndex: number,
public bindingRecord: BindingRecord, public expressionAsString: string,
public lastInBinding: boolean, public lastInDirective: boolean) {}
public lastInBinding: boolean, public lastInDirective: boolean,
public argumentToPureFunction: boolean, public referencedBySelf: boolean) {}
isPureFunction(): boolean {
return this.mode === RecordType.INTERPOLATE || this.mode === RecordType.PRIMITIVE_OP;
return this.mode === RecordType.INTERPOLATE || this.mode === RecordType.COLLECTION_LITERAL;
}
isUsedByOtherRecord(): boolean { return !this.lastInBinding || this.referencedBySelf; }
shouldBeChecked(): boolean {
return this.argumentToPureFunction || this.lastInBinding || this.isPureFunction();
}
isPipeRecord(): boolean { return this.mode === RecordType.PIPE; }

39
modules/angular2/src/transform/template_compiler/change_detector_codegen.dart
View File

@ -246,14 +246,14 @@ class _CodegenState {
var oldValue = _names.getFieldName(r.selfIndex);
var newValue = _names.getLocalName(r.selfIndex);
var change = _names.getChangeName(r.selfIndex);
var pipe = _names.getPipeName(r.selfIndex);
var cdRef = 'this.ref';
var protoIndex = r.selfIndex - 1;
var pipeType = r.name;
return '''
var read = '''
${_names.getCurrentProtoName()} = ${_names.getProtosName()}[$protoIndex];
if ($_IDENTICAL_CHECK_FN($pipe, $_UTIL.uninitialized)) {
$pipe = ${_names.getPipesAccessorName()}.get('$pipeType', $context, $cdRef);
@ -261,16 +261,20 @@ class _CodegenState {
$pipe.onDestroy();
$pipe = ${_names.getPipesAccessorName()}.get('$pipeType', $context, $cdRef);
}
$newValue = $pipe.transform($context, [$argString]);
''';
var check = '''
if ($_NOT_IDENTICAL_CHECK_FN($oldValue, $newValue)) {
$newValue = $_UTIL.unwrapValue($newValue);
$change = true;
${_genChangeMarker(r)}
${_genUpdateDirectiveOrElement(r)}
${_genAddToChanges(r)}
$oldValue = $newValue;
}
''';
return r.shouldBeChecked() ? "${read}${check}" : read;
}
String _genReferenceCheck(ProtoRecord r) {
@ -278,22 +282,33 @@ class _CodegenState {
var newValue = _names.getLocalName(r.selfIndex);
var protoIndex = r.selfIndex - 1;
var check = '''
var read = '''
${_names.getCurrentProtoName()} = ${_names.getProtosName()}[$protoIndex];
${_genUpdateCurrentValue(r)}
''';
var check = '''
if ($_NOT_IDENTICAL_CHECK_FN($newValue, $oldValue)) {
${_names.getChangeName(r.selfIndex)} = true;
${_genChangeMarker(r)}
${_genUpdateDirectiveOrElement(r)}
${_genAddToChanges(r)}
$oldValue = $newValue;
}
''';
var genCode = r.shouldBeChecked() ? "${read}${check}" : read;
if (r.isPureFunction()) {
// Add an "if changed guard"
var condition = r.args.map((a) => _names.getChangeName(a)).join(' || ');
return 'if ($condition) { $check } else { $newValue = $oldValue; }';
if (r.isUsedByOtherRecord()) {
return 'if ($condition) { $genCode } else { $newValue = $oldValue; }';
} else {
return check;
return 'if ($condition) { $genCode }';
}
} else {
return genCode;
}
}
@ -344,6 +359,10 @@ class _CodegenState {
rhs = '$_UTIL.${r.name}($argString)';
break;
case RecordType.COLLECTION_LITERAL:
rhs = '$_UTIL.${r.name}($argString)';
break;
case RecordType.INTERPOLATE:
rhs = _genInterpolation(r);
break;
@ -370,6 +389,10 @@ class _CodegenState {
return '$res';
}
String _genChangeMarker(ProtoRecord r) {
return r.argumentToPureFunction ? "${this._names.getChangeName(r.selfIndex)} = true;" : "";
}
String _genUpdateDirectiveOrElement(ProtoRecord r) {
if (!r.lastInBinding) return '';

1
modules/angular2/test/change_detection/change_detector_config.ts
View File

@ -304,6 +304,7 @@ var _availableDefinitions = [
'{z: 1}',
'{z: a}',
'name | pipe',
'(name | pipe).length',
"name | pipe:'one':address.city",
'value',
'a',

8
modules/angular2/test/change_detection/change_detector_spec.ts
View File

@ -351,6 +351,14 @@ export function main() {
val.changeDetector.detectChanges();
expect(val.dispatcher.loggedValues).toEqual(['value one two default']);
});
it('should support pipes as arguments to pure functions', () => {
var registry = new FakePipes('pipe', () => new IdentityPipe());
var person = new Person('bob');
var val = _createChangeDetector('(name | pipe).length', person, registry);
val.changeDetector.detectChanges();
expect(val.dispatcher.loggedValues).toEqual([3]);
});
});
it('should notify the dispatcher on all changes done', () => {

44
modules/angular2/test/change_detection/coalesce_spec.ts
View File

@ -7,14 +7,22 @@ import {DirectiveIndex} from 'angular2/src/change_detection/directive_record';
export function main() {
function r(funcOrValue, args, contextIndex, selfIndex,
{lastInBinding, mode, name, directiveIndex}:
{lastInBinding?: any, mode?: any, name?: any, directiveIndex?: any} = {}) {
{lastInBinding, mode, name, directiveIndex, argumentToPureFunction}: {
lastInBinding?: any,
mode?: any,
name?: any,
directiveIndex?: any,
argumentToPureFunction?: boolean
} = {}) {
if (isBlank(lastInBinding)) lastInBinding = false;
if (isBlank(mode)) mode = RecordType.PROPERTY;
if (isBlank(name)) name = "name";
if (isBlank(directiveIndex)) directiveIndex = null;
if (isBlank(argumentToPureFunction)) argumentToPureFunction = false;
return new ProtoRecord(mode, name, funcOrValue, args, null, contextIndex, directiveIndex,
selfIndex, null, null, lastInBinding, false);
selfIndex, null, null, lastInBinding, false, argumentToPureFunction,
false);
}
describe("change detection - coalesce", () => {
@ -56,7 +64,14 @@ export function main() {
[r("user", [], 0, 1, {lastInBinding: true}), r("user", [], 0, 2, {lastInBinding: true})]);
expect(rs[1]).toEqual(new ProtoRecord(RecordType.SELF, "self", null, [], null, 1, null, 2,
null, null, true, false));
null, null, true, false, false, false));
});
it("should set referencedBySelf", () => {
var rs = coalesce(
[r("user", [], 0, 1, {lastInBinding: true}), r("user", [], 0, 2, {lastInBinding: true})]);
expect(rs[0].referencedBySelf).toBeTruthy();
});
it("should not coalesce directive lifecycle records", () => {
@ -88,5 +103,26 @@ export function main() {
]);
expect(rs.length).toEqual(4);
});
it('should preserve the argumentToPureFunction property', () => {
var rs = coalesce([
r("user", [], 0, 1),
r("user", [], 0, 2, {argumentToPureFunction: true}),
r("user", [], 0, 3),
r("name", [], 3, 4)
]);
expect(rs)
.toEqual([r("user", [], 0, 1, {argumentToPureFunction: true}), r("name", [], 1, 2)]);
});
it('should preserve the argumentToPureFunction property (the original record)', () => {
var rs = coalesce([
r("user", [], 0, 1, {argumentToPureFunction: true}),
r("user", [], 0, 2),
r("name", [], 2, 3)
]);
expect(rs)
.toEqual([r("user", [], 0, 1, {argumentToPureFunction: true}), r("name", [], 1, 2)]);
});
});
}

38
modules/angular2/test/change_detection/proto_record_builder_spec.ts Normal file
View File

@ -0,0 +1,38 @@
import {
ddescribe,
describe,
it,
iit,
xit,
expect,
beforeEach,
afterEach,
inject
} from 'angular2/test_lib';
import {ProtoRecordBuilder} from 'angular2/src/change_detection/proto_change_detector';
import {BindingRecord} from 'angular2/src/change_detection/binding_record';
import {Parser} from 'angular2/src/change_detection/parser/parser';
export function main() {
describe("ProtoRecordBuilder", () => {
it('should set argumentToPureFunction flag', inject([Parser], (p: Parser) => {
var builder = new ProtoRecordBuilder();
var ast = p.parseBinding("[1,2]", "location"); // collection literal is a pure function
builder.add(BindingRecord.createForElementProperty(ast, 0, "property"), []);
var isPureFunc = builder.records.map(r => r.argumentToPureFunction);
expect(isPureFunc).toEqual([true, true, false]);
}));
it('should not set argumentToPureFunction flag when not needed',
inject([Parser], (p: Parser) => {
var builder = new ProtoRecordBuilder();
var ast = p.parseBinding("f(1,2)", "location");
builder.add(BindingRecord.createForElementProperty(ast, 0, "property"), []);
var isPureFunc = builder.records.map(r => r.argumentToPureFunction);
expect(isPureFunc).toEqual([false, false, false]);
}));
});
}

58
modules/angular2/test/change_detection/proto_record_spec.ts Normal file
View File

@ -0,0 +1,58 @@
import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach} from 'angular2/test_lib';
import {isBlank} from 'angular2/src/facade/lang';
import {RecordType, ProtoRecord} from 'angular2/src/change_detection/proto_record';
export function main() {
function r({lastInBinding, mode, name, directiveIndex, argumentToPureFunction, referencedBySelf}:
{
lastInBinding?: any,
mode?: any,
name?: any,
directiveIndex?: any,
argumentToPureFunction?: boolean,
referencedBySelf?: boolean
} = {}) {
if (isBlank(lastInBinding)) lastInBinding = false;
if (isBlank(mode)) mode = RecordType.PROPERTY;
if (isBlank(name)) name = "name";
if (isBlank(directiveIndex)) directiveIndex = null;
if (isBlank(argumentToPureFunction)) argumentToPureFunction = false;
if (isBlank(referencedBySelf)) referencedBySelf = false;
return new ProtoRecord(mode, name, null, [], null, 0, directiveIndex, 0, null, null,
lastInBinding, false, argumentToPureFunction, referencedBySelf);
}
describe("ProtoRecord", () => {
describe('shouldBeChecked', () => {
it('should be true for pure functions', () => {
expect(r({mode: RecordType.COLLECTION_LITERAL}).shouldBeChecked()).toBeTruthy();
});
it('should be true for args of pure functions', () => {
expect(r({mode: RecordType.CONST, argumentToPureFunction: true}).shouldBeChecked())
.toBeTruthy();
});
it('should be true for last in binding records', () => {
expect(r({mode: RecordType.CONST, lastInBinding: true}).shouldBeChecked()).toBeTruthy();
});
it('should be false otherwise',
() => { expect(r({mode: RecordType.CONST}).shouldBeChecked()).toBeFalsy(); });
});
describe('isUsedByOtherRecord', () => {
it('should be false for lastInBinding records',
() => { expect(r({lastInBinding: true}).isUsedByOtherRecord()).toBeFalsy(); });
it('should be true for lastInBinding records that are referenced by self records', () => {
expect(r({lastInBinding: true, referencedBySelf: true}).isUsedByOtherRecord()).toBeTruthy();
});
it('should be true for non lastInBinding records',
() => { expect(r({lastInBinding: false}).isUsedByOtherRecord()).toBeTruthy(); });
});
});
}

8
modules/angular2/test/transform/integration/two_annotations_files/expected/bar.ng_deps.dart
View File

@ -38,9 +38,8 @@ class _MyComponent_ChangeDetector0
var l_context = this.context,
l_myNum0,
c_myNum0,
l_interpolate1,
c_interpolate1;
c_myNum0 = c_interpolate1 = false;
l_interpolate1;
c_myNum0 = false;
var isChanged = false;
var changes = null;
@ -56,7 +55,6 @@ class _MyComponent_ChangeDetector0
l_interpolate1 =
"Salad: " "${l_myNum0 == null ? "" : l_myNum0}" " is awesome";
if (_gen.looseNotIdentical(l_interpolate1, this.interpolate1)) {
c_interpolate1 = true;
if (throwOnChange) {
_gen.ChangeDetectionUtil.throwOnChange(this.currentProto,
_gen.ChangeDetectionUtil.simpleChange(
@ -68,8 +66,6 @@ class _MyComponent_ChangeDetector0
this.interpolate1 = l_interpolate1;
}
} else {
l_interpolate1 = this.interpolate1;
}
changes = null;