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feat(change_detection): add support for pipes

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This commit is contained in:
vsavkin
2015-02-12 14:56:41 -08:00
parent fa25965939
commit 695b4ebbc7
20 changed files with 436 additions and 257 deletions
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37
modules/angular2/src/change_detection/change_detection_util.js vendored
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@ -1,10 +1,9 @@
import {isPresent, isBlank, BaseException, Type} from 'angular2/src/facade/lang';
import {List, ListWrapper, MapWrapper, StringMapWrapper} from 'angular2/src/facade/collection';
import {ContextWithVariableBindings} from './parser/context_with_variable_bindings';
import {ArrayChanges} from './array_changes';
import {KeyValueChanges} from './keyvalue_changes';
import {ProtoRecord} from './proto_change_detector';
import {ExpressionChangedAfterItHasBeenChecked} from './exceptions';
import {NO_CHANGE} from './pipes/pipe';
import {ChangeRecord, ChangeDetector, CHECK_ALWAYS, CHECK_ONCE, CHECKED, DETACHED} from './interfaces';
export var uninitialized = new Object();
@ -85,10 +84,6 @@ function _changeRecord(bindingMemento, change) {
var _singleElementList = [null];
function _isBlank(val):boolean {
return isBlank(val) || val === uninitialized;
}
export class ChangeDetectionUtil {
static unitialized() {
return uninitialized;
@ -149,32 +144,6 @@ export class ChangeDetectionUtil {
return obj[args[0]];
}
static structuralCheck(self, context) {
if (_isBlank(self) && _isBlank(context)) {
return null;
} else if (_isBlank(context)) {
return new SimpleChange(null, null);
}
if (_isBlank(self)) {
if (ArrayChanges.supports(context)) {
self = new ArrayChanges();
} else if (KeyValueChanges.supports(context)) {
self = new KeyValueChanges();
}
}
if (isBlank(self) || !self.supportsObj(context)) {
throw new BaseException(`Unsupported type (${context})`);
}
if (self.check(context)) {
return new SimpleChange(null, self); // TODO: don't wrap and return self instead
} else {
return null;
}
}
static findContext(name:string, c){
while (c instanceof ContextWithVariableBindings) {
if (c.hasBinding(name)) {
@ -185,6 +154,10 @@ export class ChangeDetectionUtil {
return c;
}
static noChangeMarker(value):boolean {
return value === NO_CHANGE;
}
static throwOnChange(proto:ProtoRecord, change) {
throw new ExpressionChangedAfterItHasBeenChecked(proto, change);
}