michael@0: // Turn on strict mode and warnings-as-errors mode.
michael@0: if (options().split().indexOf('strict') == -1)
michael@0:     options('strict');
michael@0: if (options().split().indexOf('werror') == -1)
michael@0:     options('werror');
michael@0: 
michael@0: function expectSyntaxError(stmt) {
michael@0:     print(stmt);
michael@0:     var result = 'no error';
michael@0:     try {
michael@0:         Function(stmt);
michael@0:     } catch (exc) {
michael@0:         result = exc.constructor.name;
michael@0:     }
michael@0:     assertEq(result, 'SyntaxError');
michael@0: }
michael@0: 
michael@0: function test(expr) {
michael@0:     // Without extra parentheses, expect an error.
michael@0:     expectSyntaxError('if (' + expr + ') {};');
michael@0: 
michael@0:     // Extra parentheses silence the warning/error.
michael@0:     Function('if ((' + expr + ')) {};');
michael@0: }
michael@0: 
michael@0: // Overparenthesized assignment in a condition should not be a strict error.
michael@0: test('a = 0');
michael@0: test('a = (f(), g)');
michael@0: test('a = b || c > d');
michael@0: expectSyntaxError('if (a == 0);');
michael@0: reportCompare('passed', 'passed', 'Overparenthesized assignment in a condition should not be a strict error.');
michael@0: