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Stricter explicit conversions from Literals to Integers.

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Explicit conversions from Literals to Integers will now be as strict as implicit conversions between
the same.
This commit is contained in:
hrkrshnn 2020-10-26 10:59:08 +01:00
parent 5ffee049fa
commit a555556559
1 changed files with 12 additions and 5 deletions
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13
libsolidity/ast/Types.cpp
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@ -129,10 +129,13 @@ BoolResult fitsIntegerType(bigint const& _value, IntegerType const& _type)
/// if _signed is true.
bool fitsIntoBits(bigint const& _value, unsigned _bits, bool _signed)
{
return fitsIntegerType(_value, *TypeProvider::integer(
return fitsIntegerType(
_value,
*TypeProvider::integer(
_bits,
_signed ? IntegerType::Modifier::Signed : IntegerType::Modifier::Unsigned
));
)
);
}
util::Result<TypePointers> transformParametersToExternal(TypePointers const& _parameters, bool _inLibrary)
@ -968,9 +971,13 @@ BoolResult RationalNumberType::isExplicitlyConvertibleTo(Type const& _convertTo)
auto category = _convertTo.category();
if (category == Category::FixedBytes)
return false;
if (category == Category::Address)
else if (category == Category::Address)
{
if (isNegative() || isFractional() || integerType()->numBits() > 160)
return false;
}
else if (category == Category::Integer)
return false;
TypePointer mobType = mobileType();
return (mobType && mobType->isExplicitlyConvertibleTo(_convertTo));