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fixes #13095 #13181

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merged 2 commits into from
Jan 17, 2020
Merged

fixes #13095 #13181

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fe2e7ff
fixes #13095
cooldome Jan 16, 2020
c9334f9
fix typo
cooldome Jan 16, 2020
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3 changes: 3 additions & 0 deletions compiler/semmagic.nim
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Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,9 @@ proc evalTypeTrait(c: PContext; traitCall: PNode, operand: PType, context: PSym)
template typeWithSonsResult(kind, sons): PNode =
newTypeWithSons(context, kind, sons).toNode(traitCall.info)

if operand.kind == tyGenericParam or (traitCall.len > 2 and operand2.kind == tyGenericParam):
return traitCall ## tpo early to evaluate

let s = trait.sym.name.s
case s
of "or", "|":
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20 changes: 20 additions & 0 deletions tests/metatype/ttypetraits.nim
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Expand Up @@ -101,3 +101,23 @@ block genericParams:
static: doAssert (int, float).lenTuple == 2
static: doAssert (1, ).lenTuple == 1
static: doAssert ().lenTuple == 0


##############################################
# bug 13095

type
CpuStorage{.shallow.}[T] = ref object
when supportsCopyMem(T):
raw_buffer*: ptr UncheckedArray[T] # 8 bytes
memalloc*: pointer # 8 bytes
isMemOwner*: bool # 1 byte
else: # Tensors of strings, other ref types or non-trivial destructors
raw_buffer*: seq[T] # 8 bytes (16 for seq v2 backed by destructors?)

var x = CpuStorage[string]()

static:
doAssert(not string.supportsCopyMem)
doAssert x.T is string # true
doAssert x.raw_buffer is seq