50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
#import "NSCompoundPredicate+MGLAdditions.h"
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#import "MGLStyleValue_Private.h"
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#import "NSPredicate+MGLPrivateAdditions.h"
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#import "NSExpression+MGLPrivateAdditions.h"
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#include <mbgl/style/conversion/property_value.hpp>
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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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@end
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@implementation NSCompoundPredicate (MGLExpressionAdditions)
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- (id)mgl_jsonExpressionObject {
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switch (self.compoundPredicateType) {
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case NSNotPredicateType: {
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NSAssert(self.subpredicates.count <= 1, @"NOT predicate cannot have multiple subpredicates.");
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NSPredicate *subpredicate = self.subpredicates.firstObject;
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return @[@"!", subpredicate.mgl_jsonExpressionObject];
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}
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case NSAndPredicateType: {
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NSArray *subarrays = [self.subpredicates valueForKeyPath:@"mgl_jsonExpressionObject"];
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return [@[@"all"] arrayByAddingObjectsFromArray:subarrays];
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}
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case NSOrPredicateType: {
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NSArray *subarrays = [self.subpredicates valueForKeyPath:@"mgl_jsonExpressionObject"];
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return [@[@"any"] arrayByAddingObjectsFromArray:subarrays];
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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 nil;
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}
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@end
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