angular-docs-cn/modules/benchpress/test/trace_event_factory.js

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import { isPresent } from 'angular2/src/facade/lang';
export class TraceEventFactory {
_cat:string;
_pid;
constructor(cat, pid) {
this._cat = cat;
this._pid = pid;
}
create(ph, name, time, args = null) {
var res = {
'name': name,
'cat': this._cat,
'ph': ph,
'ts': time,
'pid': this._pid
};
if (isPresent(args)) {
res['args'] = args;
}
return res;
}
markStart(name, time) {
return this.create('b', name, time);
}
markEnd(name, time) {
return this.create('e', name, time);
}
start(name, time, args = null) {
return this.create('B', name, time, args);
}
end(name, time, args = null) {
return this.create('E', name, time, args);
}
complete(name, time, duration, args = null) {
var res = this.create('X', name, time, args);
res['dur'] = duration;
return res;
}
}