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fix: Improve error message on missing dependency

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This commit is contained in:
Misko Hevery
2015-05-18 17:19:54 -07:00
parent 7501ad11ca
commit 2ccc65d7fd
16 changed files with 85 additions and 48 deletions
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16
modules/angular2/src/di/exceptions.ts
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@ -1,5 +1,5 @@
import {ListWrapper, List} from 'angular2/src/facade/collection';
import {stringify, BaseException} from 'angular2/src/facade/lang';
import {stringify, BaseException, isBlank} from 'angular2/src/facade/lang';
function findFirstClosedCycle(keys: List<any>): List<any> {
var res = [];
@ -179,9 +179,19 @@ export class InvalidBindingError extends BaseException {
export class NoAnnotationError extends BaseException {
name: string;
message: string;
constructor(typeOrFunc) {
constructor(typeOrFunc, params: List<List<any>>) {
super();
this.message = "Cannot resolve all parameters for " + stringify(typeOrFunc) + ". " +
var signature = ListWrapper.create();
for (var i = 0, ii = params.length; i < ii; i++) {
var parameter = params[i];
if (isBlank(parameter) || parameter.length == 0) {
ListWrapper.push(signature, '?');
} else {
ListWrapper.push(signature, ListWrapper.map(parameter, stringify).join(' '));
}
}
this.message = "Cannot resolve all parameters for " + stringify(typeOrFunc) + "(" +
signature.join(', ') + "). " +
'Make sure they all have valid type or annotations.';
}