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// RUN: %dafny /compile:0 /print:"%t.print" /dprint:"%t.dprint" "%s" > "%t"
// RUN: %diff "%s.expect" "%t"
module OldSyntax {
datatype MyDataType = MyConstructor(myint:int, mybool:bool)
| MyOtherConstructor(otherbool:bool)
| MyNumericConstructor(42:int)
method test(foo:MyDataType, x:int) returns (abc:MyDataType, def:MyDataType, ghi:MyDataType, jkl:MyDataType)
requires foo.MyConstructor?;
ensures abc == foo[myint := x + 2];
ensures def == foo[otherbool := !foo.mybool];
ensures ghi == foo[myint := 2][mybool := false];
//ensures jkl == foo[non_destructor := 5]; // Resolution error: no non_destructor in MyDataType
ensures jkl == foo[42 := 7];
{
abc := MyConstructor(x + 2, foo.mybool);
abc := foo[myint := x + 2];
def := MyOtherConstructor(!foo.mybool);
ghi := MyConstructor(2, false);
jkl := foo[42 := 7];
assert abc[myint := abc.myint - 2] == foo[myint := x];
}
// regression test (for a previous bug in the Translator.Substituter):
datatype Dt = Ctor(x: int, y: bool)
function F(d: Dt): Dt
{
d[x := 5]
}
datatype NumericNames = NumNam(010: int)
method UpdateNumNam(nn: NumericNames, y: int) returns (pp: NumericNames)
{
pp := nn[010 := y]; // not to be confused with a field name 10
}
}
module NewSyntax {
datatype MyDataType = MyConstructor(myint:int, mybool:bool)
| MyOtherConstructor(otherbool:bool)
| MyNumericConstructor(42:int)
method test(foo:MyDataType, x:int) returns (abc:MyDataType, def:MyDataType, ghi:MyDataType, jkl:MyDataType)
requires foo.MyConstructor?;
ensures abc == foo.(myint := x + 2);
ensures def == foo.(otherbool := !foo.mybool);
ensures ghi == foo.(myint := 2).(mybool := false);
//ensures jkl == foo.(non_destructor := 5); // Resolution error: no non_destructor in MyDataType
ensures jkl == foo.(42 := 7);
{
abc := MyConstructor(x + 2, foo.mybool);
abc := foo.(myint := x + 2);
def := MyOtherConstructor(!foo.mybool);
ghi := MyConstructor(2, false);
jkl := foo.(42 := 7);
assert abc.(myint := abc.myint - 2) == foo.(myint := x);
}
// regression test (for a previous bug in the Translator.Substituter):
datatype Dt = Ctor(x: int, y: bool)
function F(d: Dt): Dt
{
d.(x := 5)
}
datatype NumericNames = NumNam(010: int, 10: real, f: bool)
method UpdateNumNam(nn: NumericNames, y: int) returns (pp: NumericNames)
{
pp := nn.(010 := y); // not to be confused with a field name 10
}
method MultipleUpdates(nn: NumericNames, y: int) returns (pp: NumericNames)
ensures pp.010 == y
{
if * {
pp := nn.(10 := 0.10, 010 := y);
} else {
pp := nn.(010 := y, f := true, 10 := 0.10);
}
}
}
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