diff options
Diffstat (limited to 'platform/darwin')
| -rw-r--r-- | platform/darwin/src/NSExpression+MGLAdditions.mm | 16 | ||||
| -rw-r--r-- | platform/darwin/test/MGLExpressionTests.mm | 10 |
2 files changed, 24 insertions, 2 deletions
diff --git a/platform/darwin/src/NSExpression+MGLAdditions.mm b/platform/darwin/src/NSExpression+MGLAdditions.mm index c82a7dc008..8db839c5da 100644 --- a/platform/darwin/src/NSExpression+MGLAdditions.mm +++ b/platform/darwin/src/NSExpression+MGLAdditions.mm @@ -1258,9 +1258,15 @@ NSArray *MGLSubexpressionsWithJSONObjects(NSArray *objects) { NSArray *controlPoints = [self.arguments[curveTypeIndex + 1].collection mgl_jsonExpressionObject]; [interpolationArray addObjectsFromArray:controlPoints]; } + + NSDictionary<NSNumber *, NSExpression *> *stops = self.arguments[curveTypeIndex + 2].constantValue; + + if (stops.count == 0) { + [NSException raise:NSInvalidArgumentException format:@"‘stops‘ dictionary argument to ‘%@’ function must not be empty.", self.function]; + } + NSMutableArray *expressionObject = [NSMutableArray arrayWithObjects:@"interpolate", interpolationArray, nil]; [expressionObject addObject:(isAftermarketFunction ? self.arguments.firstObject : self.operand).mgl_jsonExpressionObject]; - NSDictionary<NSNumber *, NSExpression *> *stops = self.arguments[curveTypeIndex + 2].constantValue; for (NSNumber *key in [stops.allKeys sortedArrayUsingSelector:@selector(compare:)]) { [expressionObject addObject:key]; [expressionObject addObject:[stops[key] mgl_jsonExpressionObject]]; @@ -1272,8 +1278,14 @@ NSArray *MGLSubexpressionsWithJSONObjects(NSArray *objects) { BOOL isAftermarketFunction = [self.function isEqualToString:@"mgl_step:from:stops:"]; NSUInteger minimumIndex = isAftermarketFunction ? 1 : 0; id minimum = self.arguments[minimumIndex].mgl_jsonExpressionObject; - NSMutableArray *expressionObject = [NSMutableArray arrayWithObjects:@"step", (isAftermarketFunction ? self.arguments.firstObject : self.operand).mgl_jsonExpressionObject, minimum, nil]; NSDictionary<NSNumber *, NSExpression *> *stops = self.arguments[minimumIndex + 1].constantValue; + + if (stops.count == 0) { + [NSException raise:NSInvalidArgumentException format:@"‘stops‘ dictionary argument to ‘%@’ function must not be empty.", self.function]; + } + + NSMutableArray *expressionObject = [NSMutableArray arrayWithObjects:@"step", (isAftermarketFunction ? self.arguments.firstObject : self.operand).mgl_jsonExpressionObject, minimum, nil]; + for (NSNumber *key in [stops.allKeys sortedArrayUsingSelector:@selector(compare:)]) { [expressionObject addObject:key]; [expressionObject addObject:[stops[key] mgl_jsonExpressionObject]]; diff --git a/platform/darwin/test/MGLExpressionTests.mm b/platform/darwin/test/MGLExpressionTests.mm index d54e961b00..9c75dedaa3 100644 --- a/platform/darwin/test/MGLExpressionTests.mm +++ b/platform/darwin/test/MGLExpressionTests.mm @@ -710,6 +710,16 @@ using namespace std::string_literals; XCTAssertEqualObjects(expression.mgl_jsonExpressionObject, jsonExpression); XCTAssertEqualObjects([NSExpression expressionWithMGLJSONObject:jsonExpression], expression); } + { + NSDictionary *stops = @{}; + NSExpression *expression = [NSExpression expressionWithFormat:@"mgl_interpolate:withCurveType:parameters:stops:(x, 'cubic-bezier', { 0.42, 0, 0.58, 1 }, %@)", stops]; + XCTAssertThrowsSpecificNamed(expression.mgl_jsonExpressionObject, NSException, NSInvalidArgumentException); + } + { + NSDictionary *stops = @{}; + NSExpression *expression = [NSExpression expressionWithFormat:@"mgl_step:from:stops:($zoomLevel, 11, %@)", stops]; + XCTAssertThrowsSpecificNamed(expression.mgl_jsonExpressionObject, NSException, NSInvalidArgumentException); + } } - (void)testMatchExpressionObject { |