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56 lines
1.8 KiB
56 lines
1.8 KiB
/**
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Copyright 2018 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#import "FBLPromise+Validate.h"
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#import "FBLPromisePrivate.h"
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@implementation FBLPromise (ValidateAdditions)
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- (FBLPromise*)validate:(FBLPromiseValidateWorkBlock)predicate {
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return [self onQueue:FBLPromise.defaultDispatchQueue validate:predicate];
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}
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- (FBLPromise*)onQueue:(dispatch_queue_t)queue validate:(FBLPromiseValidateWorkBlock)predicate {
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NSParameterAssert(queue);
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NSParameterAssert(predicate);
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FBLPromiseChainedFulfillBlock chainedFulfill = ^id(id value) {
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return predicate(value) ? value :
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[[NSError alloc] initWithDomain:FBLPromiseErrorDomain
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code:FBLPromiseErrorCodeValidationFailure
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userInfo:nil];
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};
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return [self chainOnQueue:queue chainedFulfill:chainedFulfill chainedReject:nil];
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}
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@end
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@implementation FBLPromise (DotSyntax_ValidateAdditions)
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- (FBLPromise* (^)(FBLPromiseValidateWorkBlock))validate {
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return ^(FBLPromiseValidateWorkBlock predicate) {
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return [self validate:predicate];
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};
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}
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- (FBLPromise* (^)(dispatch_queue_t, FBLPromiseValidateWorkBlock))validateOn {
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return ^(dispatch_queue_t queue, FBLPromiseValidateWorkBlock predicate) {
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return [self onQueue:queue validate:predicate];
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};
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}
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@end
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