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Only capture function type to address conversion

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This commit is contained in:
Alex Beregszaszi 2017-02-01 12:22:14 +00:00
parent 0b61f13c7f
commit 4361797ddc
1 changed files with 10 additions and 8 deletions
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18
libsolidity/codegen/CompilerUtils.cpp
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@ -789,15 +789,17 @@ void CompilerUtils::convertType(Type const& _typeOnStack, Type const& _targetTyp
break; break;
case Type::Category::Function: case Type::Category::Function:
{ {
solAssert(targetTypeCategory == Type::Category::Integer, "Invalid conversion for function type."); if (targetTypeCategory == Type::Category::Integer)
IntegerType const& targetType = dynamic_cast<IntegerType const&>(_targetType); {
solAssert(targetType.isAddress(), "Function type can only be converted to address."); IntegerType const& targetType = dynamic_cast<IntegerType const&>(_targetType);
FunctionType const& typeOnStack = dynamic_cast<FunctionType const&>(_typeOnStack); solAssert(targetType.isAddress(), "Function type can only be converted to address.");
solAssert(typeOnStack.location() == FunctionType::Location::External, "Only external function type can be converted."); FunctionType const& typeOnStack = dynamic_cast<FunctionType const&>(_typeOnStack);
solAssert(typeOnStack.location() == FunctionType::Location::External, "Only external function type can be converted.");
// stack: <address> <function_id> // stack: <address> <function_id>
m_context << Instruction::POP; m_context << Instruction::POP;
break; break;
}
} }
default: default:
// All other types should not be convertible to non-equal types. // All other types should not be convertible to non-equal types.