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-rw-r--r--AST.h124
1 files changed, 80 insertions, 44 deletions
diff --git a/AST.h b/AST.h
index 10616022..0faea3fb 100644
--- a/AST.h
+++ b/AST.h
@@ -39,6 +39,7 @@ namespace solidity
{
class ASTVisitor;
+class ASTConstVisitor;
/**
@@ -54,12 +55,19 @@ public:
virtual ~ASTNode() {}
virtual void accept(ASTVisitor& _visitor) = 0;
+ virtual void accept(ASTConstVisitor& _visitor) const = 0;
template <class T>
static void listAccept(std::vector<ASTPointer<T>>& _list, ASTVisitor& _visitor)
{
for (ASTPointer<T>& element: _list)
element->accept(_visitor);
}
+ template <class T>
+ static void listAccept(std::vector<ASTPointer<T>> const& _list, ASTConstVisitor& _visitor)
+ {
+ for (ASTPointer<T> const& element: _list)
+ element->accept(_visitor);
+ }
/// Returns the source code location of this node.
Location const& getLocation() const { return m_location; }
@@ -89,6 +97,7 @@ public:
ASTNode(_location), m_nodes(_nodes) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
std::vector<ASTPointer<ASTNode>> getNodes() const { return m_nodes; }
@@ -108,6 +117,7 @@ public:
ASTNode(_location), m_identifier(_identifier) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
ASTString const& getIdentifier() const { return *m_identifier; }
@@ -122,18 +132,18 @@ class Declaration: public ASTNode
{
public:
Declaration(Location const& _location, ASTPointer<ASTString> const& _name):
- ASTNode(_location), m_name(_name) {}
+ ASTNode(_location), m_name(_name), m_scope(nullptr) {}
/// @returns the declared name.
ASTString const& getName() const { return *m_name; }
/// @returns the scope this declaration resides in. Can be nullptr if it is the global scope.
/// Available only after name and type resolution step.
- Declaration* getScope() const { return m_scope; }
- void setScope(Declaration* const& _scope) { m_scope = _scope; }
+ Declaration const* getScope() const { return m_scope; }
+ void setScope(Declaration const* _scope) { m_scope = _scope; }
private:
ASTPointer<ASTString> m_name;
- Declaration* m_scope;
+ Declaration const* m_scope;
};
/**
@@ -156,6 +166,7 @@ public:
{}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
std::vector<ASTPointer<StructDefinition>> const& getDefinedStructs() const { return m_definedStructs; }
std::vector<ASTPointer<VariableDeclaration>> const& getStateVariables() const { return m_stateVariables; }
@@ -178,16 +189,17 @@ public:
std::vector<ASTPointer<VariableDeclaration>> const& _members):
Declaration(_location, _name), m_members(_members) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
std::vector<ASTPointer<VariableDeclaration>> const& getMembers() const { return m_members; }
/// Checks that the members do not include any recursive structs and have valid types
/// (e.g. no functions).
- void checkValidityOfMembers();
+ void checkValidityOfMembers() const;
private:
- void checkMemberTypes();
- void checkRecursion();
+ void checkMemberTypes() const;
+ void checkRecursion() const;
std::vector<ASTPointer<VariableDeclaration>> m_members;
};
@@ -204,6 +216,7 @@ public:
std::vector<ASTPointer<VariableDeclaration>> const& _parameters):
ASTNode(_location), m_parameters(_parameters) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
std::vector<ASTPointer<VariableDeclaration>> const& getParameters() const { return m_parameters; }
@@ -230,14 +243,15 @@ public:
{}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
bool isPublic() const { return m_isPublic; }
bool isDeclaredConst() const { return m_isDeclaredConst; }
std::vector<ASTPointer<VariableDeclaration>> const& getParameters() const { return m_parameters->getParameters(); }
- ParameterList& getParameterList() { return *m_parameters; }
+ ParameterList const& getParameterList() const { return *m_parameters; }
std::vector<ASTPointer<VariableDeclaration>> const& getReturnParameters() const { return m_returnParameters->getParameters(); }
ASTPointer<ParameterList> const& getReturnParameterList() const { return m_returnParameters; }
- Block& getBody() { return *m_body; }
+ Block const& getBody() const { return *m_body; }
/// @return A shared pointer of an ASTString.
/// Can contain a nullptr in which case indicates absence of documentation
ASTPointer<ASTString> const& getDocumentation() const { return m_documentation; }
@@ -270,15 +284,16 @@ public:
ASTPointer<ASTString> const& _name):
Declaration(_location, _name), m_typeName(_type) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
- TypeName* getTypeName() const { return m_typeName.get(); }
+ TypeName const* getTypeName() const { return m_typeName.get(); }
/// Returns the declared or inferred type. Can be an empty pointer if no type was explicitly
/// declared and there is no assignment to the variable that fixes the type.
std::shared_ptr<Type const> const& getType() const { return m_type; }
void setType(std::shared_ptr<Type const> const& _type) { m_type = _type; }
- bool isLocalVariable() const { return !!dynamic_cast<FunctionDefinition*>(getScope()); }
+ bool isLocalVariable() const { return !!dynamic_cast<FunctionDefinition const*>(getScope()); }
private:
ASTPointer<TypeName> m_typeName; ///< can be empty ("var")
@@ -297,6 +312,8 @@ public:
Declaration(Location(), std::make_shared<ASTString>(_name)), m_type(_type) {}
virtual void accept(ASTVisitor&) override { BOOST_THROW_EXCEPTION(InternalCompilerError()
<< errinfo_comment("MagicVariableDeclaration used inside real AST.")); }
+ virtual void accept(ASTConstVisitor&) const override { BOOST_THROW_EXCEPTION(InternalCompilerError()
+ << errinfo_comment("MagicVariableDeclaration used inside real AST.")); }
std::shared_ptr<Type const> const& getType() const { return m_type; }
@@ -315,11 +332,12 @@ class TypeName: public ASTNode
public:
explicit TypeName(Location const& _location): ASTNode(_location) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
/// Retrieve the element of the type hierarchy this node refers to. Can return an empty shared
/// pointer until the types have been resolved using the @ref NameAndTypeResolver.
/// If it returns an empty shared pointer after that, this indicates that the type was not found.
- virtual std::shared_ptr<Type> toType() const = 0;
+ virtual std::shared_ptr<Type const> toType() const = 0;
};
/**
@@ -335,7 +353,8 @@ public:
if (asserts(Token::isElementaryTypeName(_type))) BOOST_THROW_EXCEPTION(InternalCompilerError());
}
virtual void accept(ASTVisitor& _visitor) override;
- virtual std::shared_ptr<Type> toType() const override { return Type::fromElementaryTypeName(m_type); }
+ virtual void accept(ASTConstVisitor& _visitor) const override;
+ virtual std::shared_ptr<Type const> toType() const override { return Type::fromElementaryTypeName(m_type); }
Token::Value getTypeName() const { return m_type; }
@@ -350,18 +369,19 @@ class UserDefinedTypeName: public TypeName
{
public:
UserDefinedTypeName(Location const& _location, ASTPointer<ASTString> const& _name):
- TypeName(_location), m_name(_name) {}
+ TypeName(_location), m_name(_name), m_referencedDeclaration(nullptr) {}
virtual void accept(ASTVisitor& _visitor) override;
- virtual std::shared_ptr<Type> toType() const override { return Type::fromUserDefinedTypeName(*this); }
+ virtual void accept(ASTConstVisitor& _visitor) const override;
+ virtual std::shared_ptr<Type const> toType() const override { return Type::fromUserDefinedTypeName(*this); }
ASTString const& getName() const { return *m_name; }
- void setReferencedDeclaration(Declaration& _referencedDeclaration) { m_referencedDeclaration = &_referencedDeclaration; }
+ void setReferencedDeclaration(Declaration const& _referencedDeclaration) { m_referencedDeclaration = &_referencedDeclaration; }
Declaration const* getReferencedDeclaration() const { return m_referencedDeclaration; }
private:
ASTPointer<ASTString> m_name;
- Declaration* m_referencedDeclaration;
+ Declaration const* m_referencedDeclaration;
};
/**
@@ -374,7 +394,8 @@ public:
ASTPointer<TypeName> const& _valueType):
TypeName(_location), m_keyType(_keyType), m_valueType(_valueType) {}
virtual void accept(ASTVisitor& _visitor) override;
- virtual std::shared_ptr<Type> toType() const override { return Type::fromMapping(*this); }
+ virtual void accept(ASTConstVisitor& _visitor) const override;
+ virtual std::shared_ptr<Type const> toType() const override { return Type::fromMapping(*this); }
ElementaryTypeName const& getKeyType() const { return *m_keyType; }
TypeName const& getValueType() const { return *m_valueType; }
@@ -397,7 +418,6 @@ class Statement: public ASTNode
{
public:
explicit Statement(Location const& _location): ASTNode(_location) {}
- virtual void accept(ASTVisitor& _visitor) override;
/// Check all type requirements, throws exception if some requirement is not met.
/// This includes checking that operators are applicable to their arguments but also that
@@ -414,6 +434,7 @@ public:
Block(Location const& _location, std::vector<ASTPointer<Statement>> const& _statements):
Statement(_location), m_statements(_statements) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
@@ -433,12 +454,13 @@ public:
Statement(_location),
m_condition(_condition), m_trueBody(_trueBody), m_falseBody(_falseBody) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
- Expression& getCondition() const { return *m_condition; }
- Statement& getTrueStatement() const { return *m_trueBody; }
+ Expression const& getCondition() const { return *m_condition; }
+ Statement const& getTrueStatement() const { return *m_trueBody; }
/// @returns the "else" part of the if statement or nullptr if there is no "else" part.
- Statement* getFalseStatement() const { return m_falseBody.get(); }
+ Statement const* getFalseStatement() const { return m_falseBody.get(); }
private:
ASTPointer<Expression> m_condition;
@@ -447,13 +469,12 @@ private:
};
/**
- * Statement in which a break statement is legal.
+ * Statement in which a break statement is legal (abstract class).
*/
class BreakableStatement: public Statement
{
public:
BreakableStatement(Location const& _location): Statement(_location) {}
- virtual void accept(ASTVisitor& _visitor) override;
};
class WhileStatement: public BreakableStatement
@@ -463,10 +484,11 @@ public:
ASTPointer<Statement> const& _body):
BreakableStatement(_location), m_condition(_condition), m_body(_body) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
- Expression& getCondition() const { return *m_condition; }
- Statement& getBody() const { return *m_body; }
+ Expression const& getCondition() const { return *m_condition; }
+ Statement const& getBody() const { return *m_body; }
private:
ASTPointer<Expression> m_condition;
@@ -478,6 +500,7 @@ class Continue: public Statement
public:
Continue(Location const& _location): Statement(_location) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override {}
};
@@ -486,6 +509,7 @@ class Break: public Statement
public:
Break(Location const& _location): Statement(_location) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override {}
};
@@ -493,8 +517,9 @@ class Return: public Statement
{
public:
Return(Location const& _location, ASTPointer<Expression> _expression):
- Statement(_location), m_expression(_expression) {}
+ Statement(_location), m_expression(_expression), m_returnParameters(nullptr) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
void setFunctionReturnParameters(ParameterList& _parameters) { m_returnParameters = &_parameters; }
@@ -504,7 +529,7 @@ public:
BOOST_THROW_EXCEPTION(InternalCompilerError());
return *m_returnParameters;
}
- Expression* getExpression() const { return m_expression.get(); }
+ Expression const* getExpression() const { return m_expression.get(); }
private:
ASTPointer<Expression> m_expression; ///< value to return, optional
@@ -525,10 +550,11 @@ public:
ASTPointer<Expression> _value):
Statement(_location), m_variable(_variable), m_value(_value) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
VariableDeclaration const& getDeclaration() const { return *m_variable; }
- Expression* getExpression() const { return m_value.get(); }
+ Expression const* getExpression() const { return m_value.get(); }
private:
ASTPointer<VariableDeclaration> m_variable;
@@ -544,9 +570,10 @@ public:
ExpressionStatement(Location const& _location, ASTPointer<Expression> _expression):
Statement(_location), m_expression(_expression) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
- Expression& getExpression() const { return *m_expression; }
+ Expression const& getExpression() const { return *m_expression; }
private:
ASTPointer<Expression> m_expression;
@@ -608,11 +635,12 @@ public:
if (asserts(Token::isAssignmentOp(_assignmentOperator))) BOOST_THROW_EXCEPTION(InternalCompilerError());
}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
- Expression& getLeftHandSide() const { return *m_leftHandSide; }
+ Expression const& getLeftHandSide() const { return *m_leftHandSide; }
Token::Value getAssignmentOperator() const { return m_assigmentOperator; }
- Expression& getRightHandSide() const { return *m_rightHandSide; }
+ Expression const& getRightHandSide() const { return *m_rightHandSide; }
private:
ASTPointer<Expression> m_leftHandSide;
@@ -635,11 +663,12 @@ public:
if (asserts(Token::isUnaryOp(_operator))) BOOST_THROW_EXCEPTION(InternalCompilerError());
}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
Token::Value getOperator() const { return m_operator; }
bool isPrefixOperation() const { return m_isPrefix; }
- Expression& getSubExpression() const { return *m_subExpression; }
+ Expression const& getSubExpression() const { return *m_subExpression; }
private:
Token::Value m_operator;
@@ -661,10 +690,11 @@ public:
if (asserts(Token::isBinaryOp(_operator) || Token::isCompareOp(_operator))) BOOST_THROW_EXCEPTION(InternalCompilerError());
}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
- Expression& getLeftExpression() const { return *m_left; }
- Expression& getRightExpression() const { return *m_right; }
+ Expression const& getLeftExpression() const { return *m_left; }
+ Expression const& getRightExpression() const { return *m_right; }
Token::Value getOperator() const { return m_operator; }
Type const& getCommonType() const { return *m_commonType; }
@@ -688,10 +718,11 @@ public:
std::vector<ASTPointer<Expression>> const& _arguments):
Expression(_location), m_expression(_expression), m_arguments(_arguments) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
- Expression& getExpression() const { return *m_expression; }
- std::vector<ASTPointer<Expression>> const& getArguments() const { return m_arguments; }
+ Expression const& getExpression() const { return *m_expression; }
+ std::vector<ASTPointer<Expression const>> getArguments() const { return {m_arguments.begin(), m_arguments.end()}; }
/// Returns true if this is not an actual function call, but an explicit type conversion
/// or constructor call.
@@ -712,7 +743,8 @@ public:
ASTPointer<ASTString> const& _memberName):
Expression(_location), m_expression(_expression), m_memberName(_memberName) {}
virtual void accept(ASTVisitor& _visitor) override;
- Expression& getExpression() const { return *m_expression; }
+ virtual void accept(ASTConstVisitor& _visitor) const override;
+ Expression const& getExpression() const { return *m_expression; }
ASTString const& getMemberName() const { return *m_memberName; }
virtual void checkTypeRequirements() override;
@@ -731,10 +763,11 @@ public:
ASTPointer<Expression> const& _index):
Expression(_location), m_base(_base), m_index(_index) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
- Expression& getBaseExpression() const { return *m_base; }
- Expression& getIndexExpression() const { return *m_index; }
+ Expression const& getBaseExpression() const { return *m_base; }
+ Expression const& getIndexExpression() const { return *m_index; }
private:
ASTPointer<Expression> m_base;
@@ -758,20 +791,21 @@ class Identifier: public PrimaryExpression
{
public:
Identifier(Location const& _location, ASTPointer<ASTString> const& _name):
- PrimaryExpression(_location), m_name(_name) {}
+ PrimaryExpression(_location), m_name(_name), m_referencedDeclaration(nullptr) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
ASTString const& getName() const { return *m_name; }
- void setReferencedDeclaration(Declaration& _referencedDeclaration) { m_referencedDeclaration = &_referencedDeclaration; }
- Declaration* getReferencedDeclaration() { return m_referencedDeclaration; }
+ void setReferencedDeclaration(Declaration const& _referencedDeclaration) { m_referencedDeclaration = &_referencedDeclaration; }
+ Declaration const* getReferencedDeclaration() const { return m_referencedDeclaration; }
private:
ASTPointer<ASTString> m_name;
/// Declaration the name refers to.
- Declaration* m_referencedDeclaration;
+ Declaration const* m_referencedDeclaration;
};
/**
@@ -788,6 +822,7 @@ public:
if (asserts(Token::isElementaryTypeName(_typeToken))) BOOST_THROW_EXCEPTION(InternalCompilerError());
}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
Token::Value getTypeToken() const { return m_typeToken; }
@@ -805,6 +840,7 @@ public:
Literal(Location const& _location, Token::Value _token, ASTPointer<ASTString> const& _value):
PrimaryExpression(_location), m_token(_token), m_value(_value) {}
virtual void accept(ASTVisitor& _visitor) override;
+ virtual void accept(ASTConstVisitor& _visitor) const override;
virtual void checkTypeRequirements() override;
Token::Value getToken() const { return m_token; }
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-26 05:17:35 +0800