diff options
Diffstat (limited to 'compiler/semmagic.nim')
| -rw-r--r-- | compiler/semmagic.nim | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/compiler/semmagic.nim b/compiler/semmagic.nim index 8c07d7d18..783846650 100644 --- a/compiler/semmagic.nim +++ b/compiler/semmagic.nim @@ -530,4 +530,19 @@ proc magicsAfterOverloadResolution(c: PContext, n: PNode, result = semQuantifier(c, n) of mOld: result = semOld(c, n) - else: result = n + of mSetLengthSeq: + result = n + let seqType = result[1].typ.skipTypes({tyPtr, tyRef, # in case we had auto-dereferencing + tyVar, tyGenericInst, tyOwned, tySink, + tyAlias, tyUserTypeClassInst}) + if seqType.kind == tySequence and seqType.base.requiresInit: + message(c.config, n.info, warnUnsafeSetLen, typeToString(seqType.base)) + of mDefault: + result = n + c.config.internalAssert result[1].typ.kind == tyTypeDesc + let constructed = result[1].typ.base + if constructed.requiresInit: + message(c.config, n.info, warnUnsafeDefault, typeToString(constructed)) + else: + result = n + |