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ast: string literals that are not valid UTF are not convertible to strings

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This commit is contained in:
Yoichi Hirai
2016-11-25 13:36:06 +01:00
parent aaf58a8c4e
commit e136ec8704
4 changed files with 12 additions and 3 deletions
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libsolidity/ast/Types.cpp
+8 -1
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@@ -879,7 +879,8 @@ bool StringLiteralType::isImplicitlyConvertibleTo(Type const& _convertTo) const
else if (auto arrayType = dynamic_cast<ArrayType const*>(&_convertTo))
return
arrayType->isByteArray() &&
!(arrayType->dataStoredIn(DataLocation::Storage) && arrayType->isPointer());
!(arrayType->dataStoredIn(DataLocation::Storage) && arrayType->isPointer()) &&
!(arrayType->isString() && !isValidUTF8());
else
return false;
}
@@ -906,6 +907,12 @@ TypePointer StringLiteralType::mobileType() const
return make_shared<ArrayType>(DataLocation::Memory, true);
}
bool StringLiteralType::isValidUTF8() const
{
size_t dontCare {};
return dev::validate(m_value, dontCare);
}
shared_ptr<FixedBytesType> FixedBytesType::smallestTypeForLiteral(string const& _literal)
{
if (_literal.length() <= 32)
libsolidity/ast/Types.h
+2
View File
@@ -425,6 +425,8 @@ public:
virtual std::string toString(bool) const override;
virtual TypePointer mobileType() const override;
bool isValidUTF8() const;
std::string const& value() const { return m_value; }
private: