class TryExpr
	var val as int
	
	def main
		
		x = 0
		x = try int.parse('123') catch get 0
		assert x == 123

		# type inference
		y = try int.parse('x123') catch get 0
		assert y ==  0
	
		# get expr not literal
		x = 666
		y = try int.parse('123') catch get x
		assert y == 123
		
		y = try int.parse('123x') catch get x-6
		assert y == 660

		x = try int.parse(nil to passthrough) catch get 0
		assert x == 0
		
		x = try int.parse(nil to passthrough) catch ArgumentNullException get 0
		assert x == 0
		
		expect ArgumentNullException
			x = try int.parse(nil to passthrough) catch FormatException get 0
			
			
		.val = try int.parse('9909') catch get 0
		assert .val ==  9909
		
		te2  = TryExpr()
		assert te2.val == 0
		te2.val = try int.parse('100') catch get 0
		assert te2.val == 100
		
		
		dflt = '---'
		s0 = try String.format('{0:P}', 0.123) catch get dflt
		assert s0 == '12.30 %'
		s1 = try String.format('{1:P}', 0.123) catch FormatException get dflt
		assert s1 == dflt
		
		s1 = try String.format('{1:XP}', 0.123) catch FormatException get dflt
		assert s1 == dflt