Add support for delete operator on UDVT

ethereum · Oct 31, 2023 · 21438dc · 21438dc
1 parent ad3caa7
commit 21438dc
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Showing 3 changed files with 11 additions and 0 deletions.
diff --git a/libsolidity/ast/Types.cpp b/libsolidity/ast/Types.cpp
@@ -2677,6  2677,11 @@ bool UserDefinedValueType::operator==(Type const& _other) const
 	return other.definition() == definition();
 }
 
 TypeResult UserDefinedValueType::unaryOperatorResult(Token _operator) const
 {
 	return _operator == Token::Delete ? TypeProvider::emptyTuple() : nullptr;
 }
 
 std::string UserDefinedValueType::toString(bool /* _withoutDataLocation */) const
 {
 	return *definition().annotation().canonicalName;

diff --git a/libsolidity/ast/Types.h b/libsolidity/ast/Types.h
@@ -1138,6  1138,7 @@ class UserDefinedValueType: public Type
 	{}
 
 	Category category() const override { return Category::UserDefinedValueType; }
 	TypeResult unaryOperatorResult(Token _operator) const override;
 	Type const& underlyingType() const;
 	UserDefinedValueTypeDefinition const& definition() const { return m_definition; }
 

diff --git a/test/libsolidity/syntaxTests/userDefinedValueType/delete.sol b/test/libsolidity/syntaxTests/userDefinedValueType/delete.sol
@@ -0,0  1,5 @@
 type MyInt is int;
 function f() pure {
     MyInt i = MyInt.wrap(1);
     delete i;
 }