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This test checks that parentheses are preserved when significant, and not added where inappropriate. We need this test because the JavaScriptCore parser removes all parentheses and the serializer then adds them back.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS compileAndSerialize('a * b * c') is 'a * b * c'
PASS compileAndSerialize('(a * b) * c') is '(a * b) * c'
PASS compileAndSerialize('a * (b * c)') is 'a * (b * c)'
PASS compileAndSerialize('a * b + c') is 'a * b + c'
PASS compileAndSerialize('(a * b) + c') is '(a * b) + c'
PASS compileAndSerialize('a * (b + c)') is 'a * (b + c)'
PASS compileAndSerialize('a * b - c') is 'a * b - c'
PASS compileAndSerialize('(a * b) - c') is '(a * b) - c'
PASS compileAndSerialize('a * (b - c)') is 'a * (b - c)'
PASS compileAndSerialize('a / b / c') is 'a / b / c'
PASS compileAndSerialize('(a / b) / c') is '(a / b) / c'
PASS compileAndSerialize('a / (b / c)') is 'a / (b / c)'
PASS compileAndSerialize('a * b / c') is 'a * b / c'
PASS compileAndSerialize('(a * b) / c') is '(a * b) / c'
PASS compileAndSerialize('a * (b / c)') is 'a * (b / c)'
PASS compileAndSerialize('a / b + c') is 'a / b + c'
PASS compileAndSerialize('(a / b) + c') is '(a / b) + c'
PASS compileAndSerialize('a / (b + c)') is 'a / (b + c)'
PASS compileAndSerialize('a % b % c') is 'a % b % c'
PASS compileAndSerialize('(a % b) % c') is '(a % b) % c'
PASS compileAndSerialize('a % (b % c)') is 'a % (b % c)'
PASS compileAndSerialize('a * b % c') is 'a * b % c'
PASS compileAndSerialize('(a * b) % c') is '(a * b) % c'
PASS compileAndSerialize('a * (b % c)') is 'a * (b % c)'
PASS compileAndSerialize('a % b + c') is 'a % b + c'
PASS compileAndSerialize('(a % b) + c') is '(a % b) + c'
PASS compileAndSerialize('a % (b + c)') is 'a % (b + c)'
PASS compileAndSerialize('a + b + c') is 'a + b + c'
PASS compileAndSerialize('(a + b) + c') is '(a + b) + c'
PASS compileAndSerialize('a + (b + c)') is 'a + (b + c)'
PASS compileAndSerialize('a + b << c') is 'a + b << c'
PASS compileAndSerialize('(a + b) << c') is '(a + b) << c'
PASS compileAndSerialize('a + (b << c)') is 'a + (b << c)'
PASS compileAndSerialize('a + b >> c') is 'a + b >> c'
PASS compileAndSerialize('(a + b) >> c') is '(a + b) >> c'
PASS compileAndSerialize('a + (b >> c)') is 'a + (b >> c)'
PASS compileAndSerialize('a + b >>> c') is 'a + b >>> c'
PASS compileAndSerialize('(a + b) >>> c') is '(a + b) >>> c'
PASS compileAndSerialize('a + (b >>> c)') is 'a + (b >>> c)'
PASS compileAndSerialize('a - b - c') is 'a - b - c'
PASS compileAndSerialize('(a - b) - c') is '(a - b) - c'
PASS compileAndSerialize('a - (b - c)') is 'a - (b - c)'
PASS compileAndSerialize('a + b - c') is 'a + b - c'
PASS compileAndSerialize('(a + b) - c') is '(a + b) - c'
PASS compileAndSerialize('a + (b - c)') is 'a + (b - c)'
PASS compileAndSerialize('a - b << c') is 'a - b << c'
PASS compileAndSerialize('(a - b) << c') is '(a - b) << c'
PASS compileAndSerialize('a - (b << c)') is 'a - (b << c)'
PASS compileAndSerialize('a << b << c') is 'a << b << c'
PASS compileAndSerialize('(a << b) << c') is '(a << b) << c'
PASS compileAndSerialize('a << (b << c)') is 'a << (b << c)'
PASS compileAndSerialize('a << b < c') is 'a << b < c'
PASS compileAndSerialize('(a << b) < c') is '(a << b) < c'
PASS compileAndSerialize('a << (b < c)') is 'a << (b < c)'
PASS compileAndSerialize('a << b > c') is 'a << b > c'
PASS compileAndSerialize('(a << b) > c') is '(a << b) > c'
PASS compileAndSerialize('a << (b > c)') is 'a << (b > c)'
PASS compileAndSerialize('a << b <= c') is 'a << b <= c'
PASS compileAndSerialize('(a << b) <= c') is '(a << b) <= c'
PASS compileAndSerialize('a << (b <= c)') is 'a << (b <= c)'
PASS compileAndSerialize('a << b >= c') is 'a << b >= c'
PASS compileAndSerialize('(a << b) >= c') is '(a << b) >= c'
PASS compileAndSerialize('a << (b >= c)') is 'a << (b >= c)'
PASS compileAndSerialize('a << b instanceof c') is 'a << b instanceof c'
PASS compileAndSerialize('(a << b) instanceof c') is '(a << b) instanceof c'
PASS compileAndSerialize('a << (b instanceof c)') is 'a << (b instanceof c)'
PASS compileAndSerialize('a << b in c') is 'a << b in c'
PASS compileAndSerialize('(a << b) in c') is '(a << b) in c'
PASS compileAndSerialize('a << (b in c)') is 'a << (b in c)'
PASS compileAndSerialize('a >> b >> c') is 'a >> b >> c'
PASS compileAndSerialize('(a >> b) >> c') is '(a >> b) >> c'
PASS compileAndSerialize('a >> (b >> c)') is 'a >> (b >> c)'
PASS compileAndSerialize('a << b >> c') is 'a << b >> c'
PASS compileAndSerialize('(a << b) >> c') is '(a << b) >> c'
PASS compileAndSerialize('a << (b >> c)') is 'a << (b >> c)'
PASS compileAndSerialize('a >> b < c') is 'a >> b < c'
PASS compileAndSerialize('(a >> b) < c') is '(a >> b) < c'
PASS compileAndSerialize('a >> (b < c)') is 'a >> (b < c)'
PASS compileAndSerialize('a >>> b >>> c') is 'a >>> b >>> c'
PASS compileAndSerialize('(a >>> b) >>> c') is '(a >>> b) >>> c'
PASS compileAndSerialize('a >>> (b >>> c)') is 'a >>> (b >>> c)'
PASS compileAndSerialize('a << b >>> c') is 'a << b >>> c'
PASS compileAndSerialize('(a << b) >>> c') is '(a << b) >>> c'
PASS compileAndSerialize('a << (b >>> c)') is 'a << (b >>> c)'
PASS compileAndSerialize('a >>> b < c') is 'a >>> b < c'
PASS compileAndSerialize('(a >>> b) < c') is '(a >>> b) < c'
PASS compileAndSerialize('a >>> (b < c)') is 'a >>> (b < c)'
PASS compileAndSerialize('a < b < c') is 'a < b < c'
PASS compileAndSerialize('(a < b) < c') is '(a < b) < c'
PASS compileAndSerialize('a < (b < c)') is 'a < (b < c)'
PASS compileAndSerialize('a < b == c') is 'a < b == c'
PASS compileAndSerialize('(a < b) == c') is '(a < b) == c'
PASS compileAndSerialize('a < (b == c)') is 'a < (b == c)'
PASS compileAndSerialize('a < b != c') is 'a < b != c'
PASS compileAndSerialize('(a < b) != c') is '(a < b) != c'
PASS compileAndSerialize('a < (b != c)') is 'a < (b != c)'
PASS compileAndSerialize('a < b === c') is 'a < b === c'
PASS compileAndSerialize('(a < b) === c') is '(a < b) === c'
PASS compileAndSerialize('a < (b === c)') is 'a < (b === c)'
PASS compileAndSerialize('a < b !== c') is 'a < b !== c'
PASS compileAndSerialize('(a < b) !== c') is '(a < b) !== c'
PASS compileAndSerialize('a < (b !== c)') is 'a < (b !== c)'
PASS compileAndSerialize('a > b > c') is 'a > b > c'
PASS compileAndSerialize('(a > b) > c') is '(a > b) > c'
PASS compileAndSerialize('a > (b > c)') is 'a > (b > c)'
PASS compileAndSerialize('a < b > c') is 'a < b > c'
PASS compileAndSerialize('(a < b) > c') is '(a < b) > c'
PASS compileAndSerialize('a < (b > c)') is 'a < (b > c)'
PASS compileAndSerialize('a > b == c') is 'a > b == c'
PASS compileAndSerialize('(a > b) == c') is '(a > b) == c'
PASS compileAndSerialize('a > (b == c)') is 'a > (b == c)'
PASS compileAndSerialize('a <= b <= c') is 'a <= b <= c'
PASS compileAndSerialize('(a <= b) <= c') is '(a <= b) <= c'
PASS compileAndSerialize('a <= (b <= c)') is 'a <= (b <= c)'
PASS compileAndSerialize('a < b <= c') is 'a < b <= c'
PASS compileAndSerialize('(a < b) <= c') is '(a < b) <= c'
PASS compileAndSerialize('a < (b <= c)') is 'a < (b <= c)'
PASS compileAndSerialize('a <= b == c') is 'a <= b == c'
PASS compileAndSerialize('(a <= b) == c') is '(a <= b) == c'
PASS compileAndSerialize('a <= (b == c)') is 'a <= (b == c)'
PASS compileAndSerialize('a >= b >= c') is 'a >= b >= c'
PASS compileAndSerialize('(a >= b) >= c') is '(a >= b) >= c'
PASS compileAndSerialize('a >= (b >= c)') is 'a >= (b >= c)'
PASS compileAndSerialize('a < b >= c') is 'a < b >= c'
PASS compileAndSerialize('(a < b) >= c') is '(a < b) >= c'
PASS compileAndSerialize('a < (b >= c)') is 'a < (b >= c)'
PASS compileAndSerialize('a >= b == c') is 'a >= b == c'
PASS compileAndSerialize('(a >= b) == c') is '(a >= b) == c'
PASS compileAndSerialize('a >= (b == c)') is 'a >= (b == c)'
PASS compileAndSerialize('a instanceof b instanceof c') is 'a instanceof b instanceof c'
PASS compileAndSerialize('(a instanceof b) instanceof c') is '(a instanceof b) instanceof c'
PASS compileAndSerialize('a instanceof (b instanceof c)') is 'a instanceof (b instanceof c)'
PASS compileAndSerialize('a < b instanceof c') is 'a < b instanceof c'
PASS compileAndSerialize('(a < b) instanceof c') is '(a < b) instanceof c'
PASS compileAndSerialize('a < (b instanceof c)') is 'a < (b instanceof c)'
PASS compileAndSerialize('a instanceof b == c') is 'a instanceof b == c'
PASS compileAndSerialize('(a instanceof b) == c') is '(a instanceof b) == c'
PASS compileAndSerialize('a instanceof (b == c)') is 'a instanceof (b == c)'
PASS compileAndSerialize('a in b in c') is 'a in b in c'
PASS compileAndSerialize('(a in b) in c') is '(a in b) in c'
PASS compileAndSerialize('a in (b in c)') is 'a in (b in c)'
PASS compileAndSerialize('a < b in c') is 'a < b in c'
PASS compileAndSerialize('(a < b) in c') is '(a < b) in c'
PASS compileAndSerialize('a < (b in c)') is 'a < (b in c)'
PASS compileAndSerialize('a in b == c') is 'a in b == c'
PASS compileAndSerialize('(a in b) == c') is '(a in b) == c'
PASS compileAndSerialize('a in (b == c)') is 'a in (b == c)'
PASS compileAndSerialize('a == b == c') is 'a == b == c'
PASS compileAndSerialize('(a == b) == c') is '(a == b) == c'
PASS compileAndSerialize('a == (b == c)') is 'a == (b == c)'
PASS compileAndSerialize('a == b & c') is 'a == b & c'
PASS compileAndSerialize('(a == b) & c') is '(a == b) & c'
PASS compileAndSerialize('a == (b & c)') is 'a == (b & c)'
PASS compileAndSerialize('a != b != c') is 'a != b != c'
PASS compileAndSerialize('(a != b) != c') is '(a != b) != c'
PASS compileAndSerialize('a != (b != c)') is 'a != (b != c)'
PASS compileAndSerialize('a == b != c') is 'a == b != c'
PASS compileAndSerialize('(a == b) != c') is '(a == b) != c'
PASS compileAndSerialize('a == (b != c)') is 'a == (b != c)'
PASS compileAndSerialize('a != b & c') is 'a != b & c'
PASS compileAndSerialize('(a != b) & c') is '(a != b) & c'
PASS compileAndSerialize('a != (b & c)') is 'a != (b & c)'
PASS compileAndSerialize('a === b === c') is 'a === b === c'
PASS compileAndSerialize('(a === b) === c') is '(a === b) === c'
PASS compileAndSerialize('a === (b === c)') is 'a === (b === c)'
PASS compileAndSerialize('a == b === c') is 'a == b === c'
PASS compileAndSerialize('(a == b) === c') is '(a == b) === c'
PASS compileAndSerialize('a == (b === c)') is 'a == (b === c)'
PASS compileAndSerialize('a === b & c') is 'a === b & c'
PASS compileAndSerialize('(a === b) & c') is '(a === b) & c'
PASS compileAndSerialize('a === (b & c)') is 'a === (b & c)'
PASS compileAndSerialize('a !== b !== c') is 'a !== b !== c'
PASS compileAndSerialize('(a !== b) !== c') is '(a !== b) !== c'
PASS compileAndSerialize('a !== (b !== c)') is 'a !== (b !== c)'
PASS compileAndSerialize('a == b !== c') is 'a == b !== c'
PASS compileAndSerialize('(a == b) !== c') is '(a == b) !== c'
PASS compileAndSerialize('a == (b !== c)') is 'a == (b !== c)'
PASS compileAndSerialize('a !== b & c') is 'a !== b & c'
PASS compileAndSerialize('(a !== b) & c') is '(a !== b) & c'
PASS compileAndSerialize('a !== (b & c)') is 'a !== (b & c)'
PASS compileAndSerialize('a & b & c') is 'a & b & c'
PASS compileAndSerialize('(a & b) & c') is '(a & b) & c'
PASS compileAndSerialize('a & (b & c)') is 'a & (b & c)'
PASS compileAndSerialize('a & b ^ c') is 'a & b ^ c'
PASS compileAndSerialize('(a & b) ^ c') is '(a & b) ^ c'
PASS compileAndSerialize('a & (b ^ c)') is 'a & (b ^ c)'
PASS compileAndSerialize('a ^ b ^ c') is 'a ^ b ^ c'
PASS compileAndSerialize('(a ^ b) ^ c') is '(a ^ b) ^ c'
PASS compileAndSerialize('a ^ (b ^ c)') is 'a ^ (b ^ c)'
PASS compileAndSerialize('a ^ b | c') is 'a ^ b | c'
PASS compileAndSerialize('(a ^ b) | c') is '(a ^ b) | c'
PASS compileAndSerialize('a ^ (b | c)') is 'a ^ (b | c)'
PASS compileAndSerialize('a | b | c') is 'a | b | c'
PASS compileAndSerialize('(a | b) | c') is '(a | b) | c'
PASS compileAndSerialize('a | (b | c)') is 'a | (b | c)'
PASS compileAndSerialize('a | b && c') is 'a | b && c'
PASS compileAndSerialize('(a | b) && c') is '(a | b) && c'
PASS compileAndSerialize('a | (b && c)') is 'a | (b && c)'
PASS compileAndSerialize('a && b && c') is 'a && b && c'
PASS compileAndSerialize('(a && b) && c') is '(a && b) && c'
PASS compileAndSerialize('a && (b && c)') is 'a && (b && c)'
PASS compileAndSerialize('a && b || c') is 'a && b || c'
PASS compileAndSerialize('(a && b) || c') is '(a && b) || c'
PASS compileAndSerialize('a && (b || c)') is 'a && (b || c)'
PASS compileAndSerialize('a || b || c') is 'a || b || c'
PASS compileAndSerialize('(a || b) || c') is '(a || b) || c'
PASS compileAndSerialize('a || (b || c)') is 'a || (b || c)'
PASS compileAndSerialize('a = b = c') is 'a = b = c'
FAIL compileAndSerialize('(a = b) = c') should be (a = b) = c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b = c)') is 'a = (b = c)'
PASS compileAndSerialize('a = b + c') is 'a = b + c'
PASS compileAndSerialize('(a = b) + c') is '(a = b) + c'
PASS compileAndSerialize('a = (b + c)') is 'a = (b + c)'
PASS compileAndSerialize('a + b = c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) = c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b = c)') is 'a + (b = c)'
PASS compileAndSerialize('a *= b *= c') is 'a *= b *= c'
FAIL compileAndSerialize('(a *= b) *= c') should be (a *= b) *= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a *= (b *= c)') is 'a *= (b *= c)'
PASS compileAndSerialize('a = b *= c') is 'a = b *= c'
FAIL compileAndSerialize('(a = b) *= c') should be (a = b) *= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b *= c)') is 'a = (b *= c)'
PASS compileAndSerialize('a *= b + c') is 'a *= b + c'
PASS compileAndSerialize('(a *= b) + c') is '(a *= b) + c'
PASS compileAndSerialize('a *= (b + c)') is 'a *= (b + c)'
PASS compileAndSerialize('a + b *= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) *= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b *= c)') is 'a + (b *= c)'
PASS compileAndSerialize('a /= b /= c') is 'a /= b /= c'
FAIL compileAndSerialize('(a /= b) /= c') should be (a /= b) /= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a /= (b /= c)') is 'a /= (b /= c)'
PASS compileAndSerialize('a = b /= c') is 'a = b /= c'
FAIL compileAndSerialize('(a = b) /= c') should be (a = b) /= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b /= c)') is 'a = (b /= c)'
PASS compileAndSerialize('a /= b + c') is 'a /= b + c'
PASS compileAndSerialize('(a /= b) + c') is '(a /= b) + c'
PASS compileAndSerialize('a /= (b + c)') is 'a /= (b + c)'
PASS compileAndSerialize('a + b /= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) /= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b /= c)') is 'a + (b /= c)'
PASS compileAndSerialize('a %= b %= c') is 'a %= b %= c'
FAIL compileAndSerialize('(a %= b) %= c') should be (a %= b) %= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a %= (b %= c)') is 'a %= (b %= c)'
PASS compileAndSerialize('a = b %= c') is 'a = b %= c'
FAIL compileAndSerialize('(a = b) %= c') should be (a = b) %= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b %= c)') is 'a = (b %= c)'
PASS compileAndSerialize('a %= b + c') is 'a %= b + c'
PASS compileAndSerialize('(a %= b) + c') is '(a %= b) + c'
PASS compileAndSerialize('a %= (b + c)') is 'a %= (b + c)'
PASS compileAndSerialize('a + b %= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) %= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b %= c)') is 'a + (b %= c)'
PASS compileAndSerialize('a += b += c') is 'a += b += c'
FAIL compileAndSerialize('(a += b) += c') should be (a += b) += c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a += (b += c)') is 'a += (b += c)'
PASS compileAndSerialize('a = b += c') is 'a = b += c'
FAIL compileAndSerialize('(a = b) += c') should be (a = b) += c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b += c)') is 'a = (b += c)'
PASS compileAndSerialize('a += b + c') is 'a += b + c'
PASS compileAndSerialize('(a += b) + c') is '(a += b) + c'
PASS compileAndSerialize('a += (b + c)') is 'a += (b + c)'
PASS compileAndSerialize('a + b += c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) += c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b += c)') is 'a + (b += c)'
PASS compileAndSerialize('a -= b -= c') is 'a -= b -= c'
FAIL compileAndSerialize('(a -= b) -= c') should be (a -= b) -= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a -= (b -= c)') is 'a -= (b -= c)'
PASS compileAndSerialize('a = b -= c') is 'a = b -= c'
FAIL compileAndSerialize('(a = b) -= c') should be (a = b) -= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b -= c)') is 'a = (b -= c)'
PASS compileAndSerialize('a -= b + c') is 'a -= b + c'
PASS compileAndSerialize('(a -= b) + c') is '(a -= b) + c'
PASS compileAndSerialize('a -= (b + c)') is 'a -= (b + c)'
PASS compileAndSerialize('a + b -= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) -= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b -= c)') is 'a + (b -= c)'
PASS compileAndSerialize('a <<= b <<= c') is 'a <<= b <<= c'
FAIL compileAndSerialize('(a <<= b) <<= c') should be (a <<= b) <<= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a <<= (b <<= c)') is 'a <<= (b <<= c)'
PASS compileAndSerialize('a = b <<= c') is 'a = b <<= c'
FAIL compileAndSerialize('(a = b) <<= c') should be (a = b) <<= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b <<= c)') is 'a = (b <<= c)'
PASS compileAndSerialize('a <<= b + c') is 'a <<= b + c'
PASS compileAndSerialize('(a <<= b) + c') is '(a <<= b) + c'
PASS compileAndSerialize('a <<= (b + c)') is 'a <<= (b + c)'
PASS compileAndSerialize('a + b <<= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) <<= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b <<= c)') is 'a + (b <<= c)'
PASS compileAndSerialize('a >>= b >>= c') is 'a >>= b >>= c'
FAIL compileAndSerialize('(a >>= b) >>= c') should be (a >>= b) >>= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a >>= (b >>= c)') is 'a >>= (b >>= c)'
PASS compileAndSerialize('a = b >>= c') is 'a = b >>= c'
FAIL compileAndSerialize('(a = b) >>= c') should be (a = b) >>= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b >>= c)') is 'a = (b >>= c)'
PASS compileAndSerialize('a >>= b + c') is 'a >>= b + c'
PASS compileAndSerialize('(a >>= b) + c') is '(a >>= b) + c'
PASS compileAndSerialize('a >>= (b + c)') is 'a >>= (b + c)'
PASS compileAndSerialize('a + b >>= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) >>= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b >>= c)') is 'a + (b >>= c)'
PASS compileAndSerialize('a >>>= b >>>= c') is 'a >>>= b >>>= c'
FAIL compileAndSerialize('(a >>>= b) >>>= c') should be (a >>>= b) >>>= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a >>>= (b >>>= c)') is 'a >>>= (b >>>= c)'
PASS compileAndSerialize('a = b >>>= c') is 'a = b >>>= c'
FAIL compileAndSerialize('(a = b) >>>= c') should be (a = b) >>>= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b >>>= c)') is 'a = (b >>>= c)'
PASS compileAndSerialize('a >>>= b + c') is 'a >>>= b + c'
PASS compileAndSerialize('(a >>>= b) + c') is '(a >>>= b) + c'
PASS compileAndSerialize('a >>>= (b + c)') is 'a >>>= (b + c)'
PASS compileAndSerialize('a + b >>>= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) >>>= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b >>>= c)') is 'a + (b >>>= c)'
PASS compileAndSerialize('a &= b &= c') is 'a &= b &= c'
FAIL compileAndSerialize('(a &= b) &= c') should be (a &= b) &= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a &= (b &= c)') is 'a &= (b &= c)'
PASS compileAndSerialize('a = b &= c') is 'a = b &= c'
FAIL compileAndSerialize('(a = b) &= c') should be (a = b) &= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b &= c)') is 'a = (b &= c)'
PASS compileAndSerialize('a &= b + c') is 'a &= b + c'
PASS compileAndSerialize('(a &= b) + c') is '(a &= b) + c'
PASS compileAndSerialize('a &= (b + c)') is 'a &= (b + c)'
PASS compileAndSerialize('a + b &= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) &= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b &= c)') is 'a + (b &= c)'
PASS compileAndSerialize('a ^= b ^= c') is 'a ^= b ^= c'
FAIL compileAndSerialize('(a ^= b) ^= c') should be (a ^= b) ^= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a ^= (b ^= c)') is 'a ^= (b ^= c)'
PASS compileAndSerialize('a = b ^= c') is 'a = b ^= c'
FAIL compileAndSerialize('(a = b) ^= c') should be (a = b) ^= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b ^= c)') is 'a = (b ^= c)'
PASS compileAndSerialize('a ^= b + c') is 'a ^= b + c'
PASS compileAndSerialize('(a ^= b) + c') is '(a ^= b) + c'
PASS compileAndSerialize('a ^= (b + c)') is 'a ^= (b + c)'
PASS compileAndSerialize('a + b ^= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) ^= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b ^= c)') is 'a + (b ^= c)'
PASS compileAndSerialize('a |= b |= c') is 'a |= b |= c'
FAIL compileAndSerialize('(a |= b) |= c') should be (a |= b) |= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a |= (b |= c)') is 'a |= (b |= c)'
PASS compileAndSerialize('a = b |= c') is 'a = b |= c'
FAIL compileAndSerialize('(a = b) |= c') should be (a = b) |= c. Threw exception SyntaxError: Invalid left-hand side in assignment
PASS compileAndSerialize('a = (b |= c)') is 'a = (b |= c)'
PASS compileAndSerialize('a |= b + c') is 'a |= b + c'
PASS compileAndSerialize('(a |= b) + c') is '(a |= b) + c'
PASS compileAndSerialize('a |= (b + c)') is 'a |= (b + c)'
PASS compileAndSerialize('a + b |= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(a + b) |= c') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('a + (b |= c)') is 'a + (b |= c)'
PASS compileAndSerialize('delete a + b') is 'delete a + b'
PASS compileAndSerialize('(delete a) + b') is '(delete a) + b'
PASS compileAndSerialize('delete (a + b)') is 'delete (a + b)'
PASS compileAndSerialize('!delete a') is '!delete a'
PASS compileAndSerialize('!(delete a)') is '!(delete a)'
PASS compileAndSerialize('void a + b') is 'void a + b'
PASS compileAndSerialize('(void a) + b') is '(void a) + b'
PASS compileAndSerialize('void (a + b)') is 'void (a + b)'
PASS compileAndSerialize('!void a') is '!void a'
PASS compileAndSerialize('!(void a)') is '!(void a)'
PASS compileAndSerialize('typeof a + b') is 'typeof a + b'
PASS compileAndSerialize('(typeof a) + b') is '(typeof a) + b'
PASS compileAndSerialize('typeof (a + b)') is 'typeof (a + b)'
PASS compileAndSerialize('!typeof a') is '!typeof a'
PASS compileAndSerialize('!(typeof a)') is '!(typeof a)'
PASS compileAndSerialize('++a + b') is '++a + b'
PASS compileAndSerialize('(++a) + b') is '(++a) + b'
PASS compileAndSerialize('++(a + b)') threw exception SyntaxError: Invalid left-hand side expression in prefix operation.
PASS compileAndSerialize('!++a') is '!++a'
PASS compileAndSerialize('!(++a)') is '!(++a)'
PASS compileAndSerialize('--a + b') is '--a + b'
PASS compileAndSerialize('(--a) + b') is '(--a) + b'
PASS compileAndSerialize('--(a + b)') threw exception SyntaxError: Invalid left-hand side expression in prefix operation.
PASS compileAndSerialize('!--a') is '!--a'
PASS compileAndSerialize('!(--a)') is '!(--a)'
PASS compileAndSerialize('+ a + b') is '+ a + b'
PASS compileAndSerialize('(+ a) + b') is '(+ a) + b'
PASS compileAndSerialize('+ (a + b)') is '+ (a + b)'
PASS compileAndSerialize('!+ a') is '!+ a'
PASS compileAndSerialize('!(+ a)') is '!(+ a)'
PASS compileAndSerialize('- a + b') is '- a + b'
PASS compileAndSerialize('(- a) + b') is '(- a) + b'
PASS compileAndSerialize('- (a + b)') is '- (a + b)'
PASS compileAndSerialize('!- a') is '!- a'
PASS compileAndSerialize('!(- a)') is '!(- a)'
PASS compileAndSerialize('~a + b') is '~a + b'
PASS compileAndSerialize('(~a) + b') is '(~a) + b'
PASS compileAndSerialize('~(a + b)') is '~(a + b)'
PASS compileAndSerialize('!~a') is '!~a'
PASS compileAndSerialize('!(~a)') is '!(~a)'
PASS compileAndSerialize('!a + b') is '!a + b'
PASS compileAndSerialize('(!a) + b') is '(!a) + b'
PASS compileAndSerialize('!(a + b)') is '!(a + b)'
PASS compileAndSerialize('!!a') is '!!a'
PASS compileAndSerialize('!(!a)') is '!(!a)'
PASS compileAndSerialize('!a++') is '!a++'
PASS compileAndSerialize('!(a++)') is '!(a++)'
PASS compileAndSerialize('(!a)++') threw exception SyntaxError: Invalid left-hand side expression in postfix operation.
PASS compileAndSerialize('!a--') is '!a--'
PASS compileAndSerialize('!(a--)') is '!(a--)'
PASS compileAndSerialize('(!a)--') threw exception SyntaxError: Invalid left-hand side expression in postfix operation.
PASS compileAndSerialize('(-1)[a]') is '(-1)[a]'
PASS compileAndSerialize('(-1)[a] = b') is '(-1)[a] = b'
PASS compileAndSerialize('(-1)[a] += b') is '(-1)[a] += b'
PASS compileAndSerialize('(-1)[a]++') is '(-1)[a]++'
PASS compileAndSerialize('++(-1)[a]') is '++(-1)[a]'
PASS compileAndSerialize('(-1)[a]()') is '(-1)[a]()'
PASS compileAndSerialize('new (-1)()') is 'new (-1)()'
PASS compileAndSerialize('(-1).a') is '(-1).a'
PASS compileAndSerialize('(-1).a = b') is '(-1).a = b'
PASS compileAndSerialize('(-1).a += b') is '(-1).a += b'
PASS compileAndSerialize('(-1).a++') is '(-1).a++'
PASS compileAndSerialize('++(-1).a') is '++(-1).a'
PASS compileAndSerialize('(-1).a()') is '(-1).a()'
PASS compileAndSerialize('(- 0)[a]') is '(- 0)[a]'
PASS compileAndSerialize('(- 0)[a] = b') is '(- 0)[a] = b'
PASS compileAndSerialize('(- 0)[a] += b') is '(- 0)[a] += b'
PASS compileAndSerialize('(- 0)[a]++') is '(- 0)[a]++'
PASS compileAndSerialize('++(- 0)[a]') is '++(- 0)[a]'
PASS compileAndSerialize('(- 0)[a]()') is '(- 0)[a]()'
PASS compileAndSerialize('new (- 0)()') is 'new (- 0)()'
PASS compileAndSerialize('(- 0).a') is '(- 0).a'
PASS compileAndSerialize('(- 0).a = b') is '(- 0).a = b'
PASS compileAndSerialize('(- 0).a += b') is '(- 0).a += b'
PASS compileAndSerialize('(- 0).a++') is '(- 0).a++'
PASS compileAndSerialize('++(- 0).a') is '++(- 0).a'
PASS compileAndSerialize('(- 0).a()') is '(- 0).a()'
PASS compileAndSerialize('(1)[a]') is '(1)[a]'
PASS compileAndSerialize('(1)[a] = b') is '(1)[a] = b'
PASS compileAndSerialize('(1)[a] += b') is '(1)[a] += b'
PASS compileAndSerialize('(1)[a]++') is '(1)[a]++'
PASS compileAndSerialize('++(1)[a]') is '++(1)[a]'
PASS compileAndSerialize('(1)[a]()') is '(1)[a]()'
PASS compileAndSerialize('new (1)()') is 'new (1)()'
PASS compileAndSerialize('(1).a') is '(1).a'
PASS compileAndSerialize('(1).a = b') is '(1).a = b'
PASS compileAndSerialize('(1).a += b') is '(1).a += b'
PASS compileAndSerialize('(1).a++') is '(1).a++'
PASS compileAndSerialize('++(1).a') is '++(1).a'
PASS compileAndSerialize('(1).a()') is '(1).a()'
PASS compileAndSerialize('(-1) = a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) = a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 = a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) *= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) *= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 *= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) /= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) /= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 /= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) %= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) %= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 %= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) += a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) += a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 += a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) -= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) -= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 -= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) <<= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) <<= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 <<= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) >>= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) >>= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 >>= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) >>>= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) >>>= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 >>>= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) &= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) &= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 &= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) ^= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) ^= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 ^= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(-1) |= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('(- 0) |= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerialize('1 |= a') threw exception SyntaxError: Invalid left-hand side in assignment.
PASS compileAndSerializeLeftmostTest('({ }).x') is '({ }).x'
PASS compileAndSerializeLeftmostTest('x = { }') is 'x = { }'
PASS compileAndSerializeLeftmostTest('(function () { })()') is '(function () { })()'
PASS compileAndSerializeLeftmostTest('x = function () { }') is 'x = function () { }'
PASS compileAndSerializeLeftmostTest('var a') is 'var a'
PASS compileAndSerializeLeftmostTest('var a = 1') is 'var a = 1'
PASS compileAndSerializeLeftmostTest('var a, b') is 'var a, b'
PASS compileAndSerializeLeftmostTest('var a = 1, b = 2') is 'var a = 1, b = 2'
PASS compileAndSerializeLeftmostTest('var a, b, c') is 'var a, b, c'
PASS compileAndSerializeLeftmostTest('var a = 1, b = 2, c = 3') is 'var a = 1, b = 2, c = 3'
PASS compileAndSerializeLeftmostTest('const a = 1') is 'const a = 1'
PASS compileAndSerializeLeftmostTest('const a = (1, 2)') is 'const a = (1, 2)'
FAIL compileAndSerializeLeftmostTest('const a, b = 1') should be const a, b = 1. Threw exception SyntaxError: Missing initializer in const declaration
FAIL compileAndSerializeLeftmostTest('const a = 1, b') should be const a = 1, b. Threw exception SyntaxError: Missing initializer in const declaration
PASS compileAndSerializeLeftmostTest('const a = 1, b = 1') is 'const a = 1, b = 1'
PASS compileAndSerializeLeftmostTest('const a = (1, 2), b = 1') is 'const a = (1, 2), b = 1'
PASS compileAndSerializeLeftmostTest('const a = 1, b = (1, 2)') is 'const a = 1, b = (1, 2)'
PASS compileAndSerializeLeftmostTest('const a = (1, 2), b = (1, 2)') is 'const a = (1, 2), b = (1, 2)'
PASS compileAndSerialize('(function () { new (a.b()).c })') is '(function () { new (a.b()).c })'
PASS successfullyParsed is true

TEST COMPLETE