lldb_private::postfix::Visitor< ResultT > Class Template Reference

A template class implementing a visitor pattern, but with a couple of twists: More...

#include <PostfixExpression.h>

Protected Member Functions
virtual	~Visitor ()=default
virtual ResultT	Visit (BinaryOpNode &binary, Node *&ref)=0
virtual ResultT	Visit (InitialValueNode &val, Node *&ref)=0
virtual ResultT	Visit (IntegerNode &integer, Node *&)=0
virtual ResultT	Visit (RegisterNode &reg, Node *&)=0
virtual ResultT	Visit (SymbolNode &symbol, Node *&ref)=0
virtual ResultT	Visit (UnaryOpNode &unary, Node *&ref)=0
ResultT	Dispatch (Node *&node)
	Invoke the correct Visit function based on the dynamic type of the given node.

Detailed Description

template<typename ResultT = void>
class lldb_private::postfix::Visitor< ResultT >

A template class implementing a visitor pattern, but with a couple of twists:

• It uses type switch instead of virtual double dispatch. This allows the
• The Visit functions get an extra Node *& parameter, which refers to the child pointer of the parent of the node we are currently visiting. This allows mutating algorithms, which replace the currently visited node with a different one.
• The class is templatized on the return type of the Visit functions, which means it's possible to return values from them.

Definition at line 163 of file PostfixExpression.h.

Constructor & Destructor Documentation

~Visitor()

template<typename ResultT = void>

virtual lldb_private::postfix::Visitor< ResultT >::~Visitor ( )

protectedvirtualdefault

Member Function Documentation

Dispatch()

template<typename ResultT = void>

ResultT lldb_private::postfix::Visitor< ResultT >::Dispatch ( Node *& node )

inlineprotected

Invoke the correct Visit function based on the dynamic type of the given node.

Definition at line 176 of file PostfixExpression.h.

References lldb_private::postfix::Node::BinaryOp, lldb_private::postfix::Node::GetKind(), lldb_private::postfix::Node::InitialValue, lldb_private::postfix::Node::Integer, lldb_private::postfix::Node::Register, lldb_private::postfix::Node::Symbol, lldb_private::postfix::Node::UnaryOp, and Visit().

Visit() [1/6]

template<typename ResultT = void>

virtual ResultT lldb_private::postfix::Visitor< ResultT >::Visit ( BinaryOpNode & binary, Node *& ref )

protectedpure virtual

Referenced by Dispatch().

Visit() [2/6]

template<typename ResultT = void>

virtual ResultT lldb_private::postfix::Visitor< ResultT >::Visit ( InitialValueNode & val, Node *& ref )

protectedpure virtual

Visit() [3/6]

template<typename ResultT = void>

virtual ResultT lldb_private::postfix::Visitor< ResultT >::Visit ( IntegerNode & integer, Node *&  )

protectedpure virtual

References integer.

Visit() [4/6]

template<typename ResultT = void>

virtual ResultT lldb_private::postfix::Visitor< ResultT >::Visit ( RegisterNode & reg, Node *&  )

protectedpure virtual

Visit() [5/6]

template<typename ResultT = void>

virtual ResultT lldb_private::postfix::Visitor< ResultT >::Visit ( SymbolNode & symbol, Node *& ref )

protectedpure virtual

Visit() [6/6]

template<typename ResultT = void>

virtual ResultT lldb_private::postfix::Visitor< ResultT >::Visit ( UnaryOpNode & unary, Node *& ref )

protectedpure virtual

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The documentation for this class was generated from the following file:

• PostfixExpression.h