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Fixes for literal overflow detection

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This commit is contained in:
Brian Fiete 2021-12-15 12:17:20 -05:00
parent 6a95cbb3b8
commit a3b761ab26
6 changed files with 68 additions and 39 deletions
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35
IDEHelper/Compiler/BfSystem.cpp
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@ -2282,6 +2282,41 @@ bool BfSystem::DoesLiteralFit(BfTypeCode typeCode, int64 value)
return false;
}
bool BfSystem::DoesLiteralFit(BfTypeCode typeCode, uint64 value)
{
if (typeCode == BfTypeCode_IntPtr)
typeCode = (mPtrSize == 4) ? BfTypeCode_Int32 : BfTypeCode_Int64;
if (typeCode == BfTypeCode_UIntPtr)
typeCode = (mPtrSize == 4) ? BfTypeCode_UInt32 : BfTypeCode_UInt64;
if (value >= 0x8000000000000000)
return typeCode == BfTypeCode_UInt64;
switch (typeCode)
{
case BfTypeCode_Int8:
return (value < 0x80);
case BfTypeCode_Int16:
return (value < 0x8000);
case BfTypeCode_Int32:
return (value < 0x80000000LL);
case BfTypeCode_Int64:
return true;
case BfTypeCode_UInt8:
return (value < 0x100);
case BfTypeCode_UInt16:
return (value < 0x10000);
case BfTypeCode_UInt32:
return (value < 0x100000000LL);
case BfTypeCode_UInt64:
return true;
default: break;
}
return false;
}
BfParser* BfSystem::CreateParser(BfProject* bfProject)
{
AutoCrit crit(mDataLock);