d77a13eb73
[ios, macos] cleaned up filters [ios] added a filter example [ios] utest filters [ios, macos] nested predicates [ios] refactored [ios] filter -> NSPredicate [ios] fixed mbgl::Any/AllFilter -> NSPredicate [ios] translate nested mbgl::NotIn filters [ios] cleanup and added more utests [ios] fixed a bug in the None filter conversion and improved utests [ios, macos] doc [macos] added missing category [ios, macos] additional utests [ios, macos] updated documentation
57 lines
2.2 KiB
Plaintext
57 lines
2.2 KiB
Plaintext
#import "NSCompoundPredicate+MGLAdditions.h"
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#import "NSPredicate+MGLAdditions.h"
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#import "NSExpression+MGLAdditions.h"
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@implementation NSCompoundPredicate (MGLAdditions)
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- (std::vector<mbgl::style::Filter>)mgl_subfilters
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{
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std::vector<mbgl::style::Filter>filters;
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for (NSPredicate *predicate in self.subpredicates) {
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filters.push_back(predicate.mgl_filter);
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}
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return filters;
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}
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- (mbgl::style::Filter)mgl_filter
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{
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switch (self.compoundPredicateType) {
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case NSNotPredicateType: {
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// Translate a nested NSComparisonPredicate with operator type NSInPredicateOperatorType into a flat mbgl::NotIn filter.
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NSArray<NSComparisonPredicate *> *comparisonPredicates = [self.subpredicates filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"class == %@", [NSComparisonPredicate class]]];
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NSArray<NSComparisonPredicate *> *notInPredicates = [comparisonPredicates filteredArrayUsingPredicate:[NSPredicate predicateWithBlock:^BOOL(NSComparisonPredicate *_Nonnull predicate, NSDictionary<NSString *,id> * _Nullable bindings) {
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return predicate.predicateOperatorType == NSInPredicateOperatorType;
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}]];
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if (notInPredicates.count) {
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auto filter = mbgl::style::NotInFilter();
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filter.key = notInPredicates.firstObject.leftExpression.keyPath.UTF8String;
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filter.values = notInPredicates.firstObject.rightExpression.mgl_filterValues;
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return filter;
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} else {
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auto filter = mbgl::style::NoneFilter();
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filter.filters = [self mgl_subfilters];
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return filter;
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}
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}
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case NSAndPredicateType: {
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auto filter = mbgl::style::AllFilter();
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filter.filters = [self mgl_subfilters];
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return filter;
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}
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case NSOrPredicateType: {
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auto filter = mbgl::style::AnyFilter();
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filter.filters = [self mgl_subfilters];
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return filter;
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}
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}
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[NSException raise:@"Compound predicate type not handled"
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format:@""];
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return {};
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}
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@end
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