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-rw-r--r--libsolidity/ast/AST.h11
-rw-r--r--libsolidity/ast/ASTJsonConverter.cpp2
-rw-r--r--libsolidity/ast/AST_accept.h6
3 files changed, 12 insertions, 7 deletions
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);
}