This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
public enum JSONValue { | |
case string(String) | |
case int(Int) | |
case double(Double) | |
case bool(Bool) | |
case object([String: JSONValue]) | |
case array([JSONValue]) | |
} | |
extension JSONValue: Encodable { |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
func parse(_ json: String) -> Any? { | |
return Bool(json) ?? Int(json) ?? Double(json) ?? parseString(json) | |
} | |
private func parseString(_ text: String) -> String? { | |
switch (text.first, text.last) { | |
case ("\""?, "\""?): return "" | |
default: return nil | |
} | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
func parse(_ json: String) -> Any? { | |
return Bool(json) ?? Int(json) ?? Double(json) ?? "" | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
func testEmptyString() { | |
assert("\"\"", parsesTo: "") | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
func assert<T: Equatable>(_ json: String, parsesTo target: T) { | |
guard let parsed = parser.parse(json) as? T else { XCTFail("Parsed item \(json) is not of type \(T.self)"); return } | |
XCTAssertEqual(parsed, target) | |
} | |
func assertNil(_ json: String) { | |
XCTAssertNil(parser.parse(json)) | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
class JSONParser { | |
func parse(_ json: String) -> Any? { | |
return Bool(json) ?? Int(json) ?? Double(json) | |
} | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
func testDouble() { | |
XCTAssertEqual(parser.parse("0.0") as! Double, 0) | |
} |