# This file is part of NIT ( http://www.nitlanguage.org ).
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import core::kernel

class A
	fun foo(a, b: nullable Int, c, d: Int, e,f: nullable Int)
	do
		if a == null then '\n'.output else a.output
		if b == null then '\n'.output else b.output
		c.output
		d.output
		if e == null then '\n'.output else e.output
		if f == null then '\n'.output else f.output
		'-'.output
		'\n'.output

	end

	fun bar(a,b,c: nullable Int)
	do
		if a == null then '\n'.output else a.output
		if b == null then '\n'.output else b.output
		if c == null then '\n'.output else c.output
		'-'.output
		'\n'.output
	end

	fun bar=(a,b,c: nullable Int)
	do
		if a == null then '\n'.output else a.output
		if b == null then '\n'.output else b.output
		if c == null then '\n'.output else c.output
		'-'.output
		'\n'.output
	end

	fun [](a,b,c: nullable Int): Int
	do
		if a == null then '\n'.output else a.output
		if b == null then '\n'.output else b.output
		if c == null then '\n'.output else c.output
		'-'.output
		'\n'.output
		return 0
	end

	fun []=(a,b,c: nullable Int): Int
	do
		if a == null then '\n'.output else a.output
		if b == null then '\n'.output else b.output
		if c == null then '\n'.output else c.output
		'-'.output
		'\n'.output
		return 0
	end

	fun +(a: nullable Int): Int
	do
		if a == null then '\n'.output else a.output
		'-'.output
		'\n'.output
		return 0
	end
end

var a = new A
var x

#alt1#a.foo
#alt1#a.foo(2)
#alt1#a.foo(1,2)
#alt1#a.foo(1,2,3)
a.foo(1,2,3,4)
a.foo(1,2,3,4,5)
a.foo(1,2,3,4,5,6)
#alt1#a.foo(1,2,3,4,5,6,7)

a.bar
a.bar(1)
a.bar(1,2)
a.bar(1,2,3)
#alt1#a.bar(1,2,3,4)

a.bar= 10
a.bar(1) = 20
a.bar(1,2) = 30
#alt1#a.bar(1,2,3) = 40

#alt2# x = a[]
x = a[1]
x = a[1,2]
x = a[1,2,3]
#alt2#x = a[1,2,3,4]

#alt2#a[] = 10
a[1] = 20
a[1,2] = 30
#alt1#a[1,2,3] = 40