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Do not set to ref for explicit conversion and add assertion for array

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type conversion. Also, add some test cases for #4901 and #4948.
This commit is contained in:
liangdzou
2018-09-14 08:42:40 +02:00
committed by Daniel Kirchner
parent 5f4a2d2cad
commit f3cbdadec7
8 changed files with 84 additions and 2 deletions
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libsolidity/analysis/TypeChecker.cpp
+17 -2
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@@ -1733,8 +1733,23 @@ bool TypeChecker::visit(FunctionCall const& _functionCall)
DataLocation dataLoc = DataLocation::Memory;
if (auto argRefType = dynamic_cast<ReferenceType const*>(argType.get()))
dataLoc = argRefType->location();
resultType = ReferenceType::copyForLocationIfReference(dataLoc, resultType);
if (!argType->isExplicitlyConvertibleTo(*resultType))
if (auto type = dynamic_cast<ReferenceType const*>(resultType.get()))
resultType = type->copyForLocation(dataLoc, type->isPointer());
if (argType->isExplicitlyConvertibleTo(*resultType))
{
if (auto argArrayType = dynamic_cast<ArrayType const*>(argType.get()))
{
auto resultArrayType = dynamic_cast<ArrayType const*>(resultType.get());
solAssert(!!resultArrayType, "");
solAssert(
argArrayType->location() != DataLocation::Storage ||
((resultArrayType->isPointer() || (argArrayType->isByteArray() && resultArrayType->isByteArray())) &&
resultArrayType->location() == DataLocation::Storage),
"Invalid explicit conversion to storage type."
);
}
}
else
{
if (resultType->category() == Type::Category::Contract && argType->category() == Type::Category::Address)
{