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better support for unsigned integers.

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This commit is contained in:
Zahary Karadjov 2012-06-10 23:33:05 +03:00
commit e2d38a57ec
22 changed files with 643 additions and 586 deletions
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8
compiler/sigmatch.nim
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@ -163,6 +163,9 @@ proc handleRange(f, a: PType, min, max: TTypeKind): TTypeRelation =
var k = skipTypes(a, {tyRange}).kind
if k == f.kind: result = isSubtype
elif f.kind == tyInt and k in {tyInt..tyInt32}: result = isIntConv
elif f.kind == tyUInt and k in {tyUInt..tyUInt32}: result = isIntConv
elif f.kind in {tyUInt..tyUInt64} and k == tyInt and tfLiteral in a.flags:
result = isIntConv
elif k >= min and k <= max: result = isConvertible
else: result = isNone
@ -306,6 +309,11 @@ proc typeRel(mapping: var TIdTable, f, a: PType): TTypeRelation =
of tyInt16: result = handleRange(f, a, tyInt8, tyInt16)
of tyInt32: result = handleRange(f, a, tyInt, tyInt32)
of tyInt64: result = handleRange(f, a, tyInt, tyInt64)
of tyUInt: result = handleRange(f, a, tyUInt8, tyUInt32)
of tyUInt8: result = handleRange(f, a, tyUInt8, tyUInt8)
of tyUInt16: result = handleRange(f, a, tyUInt8, tyUInt16)
of tyUInt32: result = handleRange(f, a, tyUInt, tyUInt32)
of tyUInt64: result = handleRange(f, a, tyUInt, tyUInt64)
of tyFloat: result = handleFloatRange(f, a)
of tyFloat32: result = handleFloatRange(f, a)
of tyFloat64: result = handleFloatRange(f, a)