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-rw-r--r--Changelog.md1
-rw-r--r--libsolidity/analysis/TypeChecker.cpp62
-rw-r--r--libsolidity/ast/AST.h11
-rw-r--r--libsolidity/ast/ASTJsonConverter.cpp2
-rw-r--r--libsolidity/ast/AST_accept.h6
-rw-r--r--libsolidity/codegen/ContractCompiler.cpp4
-rw-r--r--libsolidity/parsing/Parser.cpp6
-rw-r--r--test/libsolidity/syntaxTests/inheritance/base_arguments_empty_parentheses.sol3
-rw-r--r--test/libsolidity/syntaxTests/inheritance/base_arguments_empty_parentheses_V050.sol9
-rw-r--r--test/libsolidity/syntaxTests/inheritance/base_arguments_no_parentheses.sol5
10 files changed, 73 insertions, 36 deletions
diff --git a/Changelog.md b/Changelog.md
index 7e653ebf..d6860bdf 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -11,6 +11,7 @@ Features:
* Optimizer: Optimize across ``mload`` if ``msize()`` is not used.
* Syntax Checker: Issue warning for empty structs (or error as experimental 0.5.0 feature).
* General: Introduce new constructor syntax using the ``constructor`` keyword as experimental 0.5.0 feature.
+ * Inheritance: Error when using empty parenthesis for base class constructors that require arguments as experimental 0.5.0 feature.
Bugfixes:
* Code Generator: Allow ``block.blockhash`` without being called.
diff --git a/libsolidity/analysis/TypeChecker.cpp b/libsolidity/analysis/TypeChecker.cpp
index 620dfca4..a252742d 100644
--- a/libsolidity/analysis/TypeChecker.cpp
+++ b/libsolidity/analysis/TypeChecker.cpp
@@ -320,7 +320,7 @@ void TypeChecker::checkContractAbstractConstructors(ContractDefinition const& _c
{
auto baseContract = dynamic_cast<ContractDefinition const*>(&dereference(base->name()));
solAssert(baseContract, "");
- if (!base->arguments().empty())
+ if (base->arguments() && !base->arguments()->empty())
argumentsNeeded.erase(baseContract);
}
}
@@ -506,30 +506,46 @@ void TypeChecker::endVisit(InheritanceSpecifier const& _inheritance)
// Interfaces do not have constructors, so there are zero parameters.
parameterTypes = ContractType(*base).newExpressionType()->parameterTypes();
- if (!arguments.empty() && parameterTypes.size() != arguments.size())
+ if (arguments)
{
- m_errorReporter.typeError(
- _inheritance.location(),
- "Wrong argument count for constructor call: " +
- toString(arguments.size()) +
- " arguments given but expected " +
- toString(parameterTypes.size()) +
- "."
- );
- return;
- }
+ bool v050 = m_scope->sourceUnit().annotation().experimentalFeatures.count(ExperimentalFeature::V050);
- for (size_t i = 0; i < arguments.size(); ++i)
- if (!type(*arguments[i])->isImplicitlyConvertibleTo(*parameterTypes[i]))
- m_errorReporter.typeError(
- arguments[i]->location(),
- "Invalid type for argument in constructor call. "
- "Invalid implicit conversion from " +
- type(*arguments[i])->toString() +
- " to " +
- parameterTypes[i]->toString() +
- " requested."
- );
+ if (parameterTypes.size() != arguments->size())
+ {
+ if (arguments->size() == 0 && !v050)
+ m_errorReporter.warning(
+ _inheritance.location(),
+ "Wrong argument count for constructor call: " +
+ toString(arguments->size()) +
+ " arguments given but expected " +
+ toString(parameterTypes.size()) +
+ "."
+ );
+ else
+ {
+ m_errorReporter.typeError(
+ _inheritance.location(),
+ "Wrong argument count for constructor call: " +
+ toString(arguments->size()) +
+ " arguments given but expected " +
+ toString(parameterTypes.size()) +
+ "."
+ );
+ return;
+ }
+ }
+ for (size_t i = 0; i < arguments->size(); ++i)
+ if (!type(*(*arguments)[i])->isImplicitlyConvertibleTo(*parameterTypes[i]))
+ m_errorReporter.typeError(
+ (*arguments)[i]->location(),
+ "Invalid type for argument in constructor call. "
+ "Invalid implicit conversion from " +
+ type(*(*arguments)[i])->toString() +
+ " to " +
+ parameterTypes[i]->toString() +
+ " requested."
+ );
+ }
}
void TypeChecker::endVisit(UsingForDirective const& _usingFor)
diff --git a/libsolidity/ast/AST.h b/libsolidity/ast/AST.h
index 56bb412c..bc85349b 100644
--- a/libsolidity/ast/AST.h
+++ b/libsolidity/ast/AST.h
@@ -425,19 +425,22 @@ public:
InheritanceSpecifier(
SourceLocation const& _location,
ASTPointer<UserDefinedTypeName> const& _baseName,
- std::vector<ASTPointer<Expression>> _arguments
+ std::unique_ptr<std::vector<ASTPointer<Expression>>> _arguments
):
- ASTNode(_location), m_baseName(_baseName), m_arguments(_arguments) {}
+ ASTNode(_location), m_baseName(_baseName), m_arguments(std::move(_arguments)) {}
virtual void accept(ASTVisitor& _visitor) override;
virtual void accept(ASTConstVisitor& _visitor) const override;
UserDefinedTypeName const& name() const { return *m_baseName; }
- std::vector<ASTPointer<Expression>> const& arguments() const { return m_arguments; }
+ // Returns nullptr if no argument list was given (``C``).
+ // If an argument list is given (``C(...)``), the arguments are returned
+ // as a vector of expressions. Note that this vector can be empty (``C()``).
+ std::vector<ASTPointer<Expression>> const* arguments() const { return m_arguments.get(); }
private:
ASTPointer<UserDefinedTypeName> m_baseName;
- std::vector<ASTPointer<Expression>> m_arguments;
+ std::unique_ptr<std::vector<ASTPointer<Expression>>> m_arguments;
};
/**
diff --git a/libsolidity/ast/ASTJsonConverter.cpp b/libsolidity/ast/ASTJsonConverter.cpp
index 4fef67c3..94932eca 100644
--- a/libsolidity/ast/ASTJsonConverter.cpp
+++ b/libsolidity/ast/ASTJsonConverter.cpp
@@ -268,7 +268,7 @@ bool ASTJsonConverter::visit(InheritanceSpecifier const& _node)
{
setJsonNode(_node, "InheritanceSpecifier", {
make_pair("baseName", toJson(_node.name())),
- make_pair("arguments", toJson(_node.arguments()))
+ make_pair("arguments", _node.arguments() ? toJson(*_node.arguments()) : Json::Value(Json::arrayValue))
});
return false;
}
diff --git a/libsolidity/ast/AST_accept.h b/libsolidity/ast/AST_accept.h
index 70ee997e..dac414fc 100644
--- a/libsolidity/ast/AST_accept.h
+++ b/libsolidity/ast/AST_accept.h
@@ -94,7 +94,8 @@ void InheritanceSpecifier::accept(ASTVisitor& _visitor)
if (_visitor.visit(*this))
{
m_baseName->accept(_visitor);
- listAccept(m_arguments, _visitor);
+ if (m_arguments)
+ listAccept(*m_arguments, _visitor);
}
_visitor.endVisit(*this);
}
@@ -104,7 +105,8 @@ void InheritanceSpecifier::accept(ASTConstVisitor& _visitor) const
if (_visitor.visit(*this))
{
m_baseName->accept(_visitor);
- listAccept(m_arguments, _visitor);
+ if (m_arguments)
+ listAccept(*m_arguments, _visitor);
}
_visitor.endVisit(*this);
}
diff --git a/libsolidity/codegen/ContractCompiler.cpp b/libsolidity/codegen/ContractCompiler.cpp
index ebd9139a..d3a7e4ea 100644
--- a/libsolidity/codegen/ContractCompiler.cpp
+++ b/libsolidity/codegen/ContractCompiler.cpp
@@ -157,8 +157,8 @@ void ContractCompiler::appendInitAndConstructorCode(ContractDefinition const& _c
);
solAssert(baseContract, "");
- if (!m_baseArguments.count(baseContract->constructor()) && !base->arguments().empty())
- m_baseArguments[baseContract->constructor()] = &base->arguments();
+ if (!m_baseArguments.count(baseContract->constructor()) && base->arguments() && !base->arguments()->empty())
+ m_baseArguments[baseContract->constructor()] = base->arguments();
}
}
// Initialization of state variables in base-to-derived order.
diff --git a/libsolidity/parsing/Parser.cpp b/libsolidity/parsing/Parser.cpp
index 3dbd4c8f..9a7731d8 100644
--- a/libsolidity/parsing/Parser.cpp
+++ b/libsolidity/parsing/Parser.cpp
@@ -286,17 +286,17 @@ ASTPointer<InheritanceSpecifier> Parser::parseInheritanceSpecifier()
RecursionGuard recursionGuard(*this);
ASTNodeFactory nodeFactory(*this);
ASTPointer<UserDefinedTypeName> name(parseUserDefinedTypeName());
- vector<ASTPointer<Expression>> arguments;
+ unique_ptr<vector<ASTPointer<Expression>>> arguments;
if (m_scanner->currentToken() == Token::LParen)
{
m_scanner->next();
- arguments = parseFunctionCallListArguments();
+ arguments.reset(new vector<ASTPointer<Expression>>(parseFunctionCallListArguments()));
nodeFactory.markEndPosition();
expectToken(Token::RParen);
}
else
nodeFactory.setEndPositionFromNode(name);
- return nodeFactory.createNode<InheritanceSpecifier>(name, arguments);
+ return nodeFactory.createNode<InheritanceSpecifier>(name, std::move(arguments));
}
Declaration::Visibility Parser::parseVisibilitySpecifier(Token::Value _token)
diff --git a/test/libsolidity/syntaxTests/inheritance/base_arguments_empty_parentheses.sol b/test/libsolidity/syntaxTests/inheritance/base_arguments_empty_parentheses.sol
index 9607ed60..b3fbd04a 100644
--- a/test/libsolidity/syntaxTests/inheritance/base_arguments_empty_parentheses.sol
+++ b/test/libsolidity/syntaxTests/inheritance/base_arguments_empty_parentheses.sol
@@ -3,4 +3,5 @@ contract Base {
}
contract Derived is Base(2) { }
contract Derived2 is Base(), Derived() { }
-contract Derived3 is Base, Derived {}
+// ----
+// Warning: Wrong argument count for constructor call: 0 arguments given but expected 1.
diff --git a/test/libsolidity/syntaxTests/inheritance/base_arguments_empty_parentheses_V050.sol b/test/libsolidity/syntaxTests/inheritance/base_arguments_empty_parentheses_V050.sol
new file mode 100644
index 00000000..b3728634
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/base_arguments_empty_parentheses_V050.sol
@@ -0,0 +1,9 @@
+pragma experimental "v0.5.0";
+
+contract Base {
+ constructor(uint) public {}
+}
+contract Derived is Base(2) { }
+contract Derived2 is Base(), Derived() { }
+// ----
+// TypeError: Wrong argument count for constructor call: 0 arguments given but expected 1.
diff --git a/test/libsolidity/syntaxTests/inheritance/base_arguments_no_parentheses.sol b/test/libsolidity/syntaxTests/inheritance/base_arguments_no_parentheses.sol
new file mode 100644
index 00000000..24cca8f0
--- /dev/null
+++ b/test/libsolidity/syntaxTests/inheritance/base_arguments_no_parentheses.sol
@@ -0,0 +1,5 @@
+contract Base {
+ constructor(uint) public {}
+}
+contract Derived is Base(2) { }
+contract Derived2 is Base, Derived {}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 17:31:20 +0800