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perf(scope): re-enable statement cacheing

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This commit is contained in:
Misko Hevery 2011-08-12 08:57:21 -07:00
parent 42062dab34
commit 13e7df68a6
3 changed files with 12 additions and 13 deletions
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4
src/Scope.js
View file

@ -433,7 +433,7 @@ Scope.prototype = {
*/
$eval: function(expr) {
var fn = isString(expr)
? parser(expr).statements()
? expressionCompile(expr)
: expr || noop;
return fn(this);
},
@ -495,7 +495,7 @@ Scope.prototype = {
function compileToFn(exp, name) {
var fn = isString(exp)
? parser(exp).statements()
? expressionCompile(exp)
: exp;
assertArgFn(fn, name);
return fn;

3
src/directives.js
View file

@ -205,6 +205,7 @@ angularDirective("ng:controller", function(expression){
*/
angularDirective("ng:bind", function(expression, element){
element.addClass('ng-binding');
var exprFn = parser(expression).statements();
return function(element) {
var lastValue = noop, lastError = noop;
this.$watch(function(scope) {
@ -215,7 +216,7 @@ angularDirective("ng:bind", function(expression, element){
// TODO(misko): get rid of $element https://github.com/angular/angular.js/issues/348
scope.$element = element;
try {
value = scope.$eval(expression);
value = exprFn(scope);
} catch (e) {
scope.$service('$exceptionHandler')(e);
error = formatError(e);

18
src/widgets.js
View file

@ -526,23 +526,21 @@ function inputWidget(events, modelAccessor, viewAccessor, initFn, textBox) {
var scope = this,
model = modelAccessor(scope, element),
view = viewAccessor(scope, element),
action = element.attr('ng:change') || noop,
ngChange = element.attr('ng:change') || noop,
lastValue;
if (model) {
initFn.call(scope, model, view, element);
scope.$eval(element.attr('ng:init') || noop);
element.bind(events, function(event){
function handler(){
scope.$apply(function() {
var value = view.get();
if (!textBox || value != lastValue) {
model.set(value);
lastValue = model.get();
scope.$eval(action);
}
});
var value = view.get();
if (!textBox || value != lastValue) {
model.set(value);
lastValue = model.get();
scope.$eval(ngChange);
}
}
event.type == 'keydown' ? $defer(handler) : handler();
event.type == 'keydown' ? $defer(handler) : scope.$apply(handler);
});
scope.$watch(model.get, function(scope, value) {
if (!equals(lastValue, value)) {