diff options
Diffstat (limited to 'tests/vm/tcastint.nim')
| -rw-r--r-- | tests/vm/tcastint.nim | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/tests/vm/tcastint.nim b/tests/vm/tcastint.nim index a97c81ed2..c306e4a31 100644 --- a/tests/vm/tcastint.nim +++ b/tests/vm/tcastint.nim @@ -1,5 +1,5 @@ import macros - +from stdtest/testutils import disableVM type Dollar = distinct int XCoord = distinct int32 @@ -11,6 +11,12 @@ proc `==`(x, y: XCoord): bool {.borrow.} proc dummy[T](x: T): T = x +template roundTrip(a, T) = + let a2 = a # sideeffect safe + let b = cast[T](a2) + let c = cast[type(a2)](b) + doAssert c == a2 + proc test() = let U8 = 0b1011_0010'u8 let I8 = 0b1011_0010'i8 @@ -98,17 +104,21 @@ proc test() = doAssert(cast[int](digit) == raw) doAssert(cast[Digit](raw) == digit) - when defined nimvm: - doAssert(not compiles(cast[float](I64A))) - doAssert(not compiles(cast[float32](I64A))) - - doAssert(not compiles(cast[char](I64A))) - doAssert(not compiles(cast[uint16](I64A))) - doAssert(not compiles(cast[uint32](I64A))) + block: + roundTrip(I64A, float) + roundTrip(I8, uint16) + roundTrip(I8, uint32) + roundTrip(I8, uint64) + doAssert cast[uint16](I8) == 65458'u16 + doAssert cast[uint32](I8) == 4294967218'u32 + doAssert cast[uint64](I8) == 18446744073709551538'u64 + doAssert cast[uint32](I64A) == 2571663889'u32 + doAssert cast[uint16](I64A) == 31249 + doAssert cast[char](I64A).ord == 17 + doAssert compiles(cast[float32](I64A)) - doAssert(not compiles(cast[uint16](I8))) - doAssert(not compiles(cast[uint32](I8))) - doAssert(not compiles(cast[uint64](I8))) + disableVM: # xxx Error: VM does not support 'cast' from tyInt64 to tyFloat32 + doAssert cast[uint32](cast[float32](I64A)) == 2571663889'u32 const prerecordedResults = [ # cast to char |