v/vlib/v/tests/complex_assign_test.v

106 lines
1.8 KiB
V

struct Object {
name string
value int
}
fn multireturner(n int, s string) (int, string) {
return n + 1, s
}
fn test_assign_multireturn_expression() {
a, b := if true {
multireturner(13, 'awesome')
} else {
multireturner(-1, 'notawesome')
}
assert a == 14
assert b == 'awesome'
c, d := if false {
multireturner(-1, 'notawesome')
} else if true {
multireturner(17, 'awesomer')
} else {
multireturner(-1, 'notawesome')
}
assert c == 18
assert d == 'awesomer'
e, f := if false {
multireturner(-1, 'notawesome')
} else if false {
multireturner(-1, 'notawesome')
} else {
multireturner(17, 'awesomer')
}
assert e == 18
assert f == 'awesomer'
g, h := match true {
true { multireturner(0, 'good') }
false { multireturner(100, 'bad') }
else { multireturner(200, 'bad') }
}
assert g == 1
assert h == 'good'
i, j := match true {
false { multireturner(100, 'bad') }
else { multireturner(0, 'good') }
}
assert i == 1
assert j == 'good'
k, l, m := if true {
1, 'awesome', [13]
} else {
0, 'bad', [0]
}
assert k == 1
assert l == 'awesome'
assert m == [13]
n, o, p := if false {
1, 'awesome', [13]
} else {
0, 'bad', [0]
}
assert n == 0
assert o == 'bad'
assert p == [0]
mut var1 := 17
var2 := 'awesome'
q, r, s := if true {
1 + var1, var2, [13]
} else {
0, 'bad', [0]
}
assert q == 18
assert r == 'awesome'
assert s == [13]
val1 := 1
val2 := 0
t, u, v := if true {
val1, 'awesome', [13]
} else {
val2, 'bad', [0]
}
assert t == val1
assert u == 'awesome'
assert v == [13]
val3 := Object { name: 'foo', value: 19 }
x, y, z := if true {
1 + 1, 'awe' + 'some', { val3 | name: 'bar' }
} else {
0, '0', Object {}
}
assert x == 2
assert y == 'awesome'
assert z.name == 'bar'
assert z.value == 19
}