Classes
class	Location

struct	Position

Typedefs
template<typename N >
using	Path = std::vector< std::reference_wrapper< N > >

template<typename Result = void, typename Dispatcher = detail::visitor::NoDispatcher, typename Erased = Node>
using	PreOrder = detail::visitor::Visitor< Result, Dispatcher, Erased, detail::visitor::Order::Pre >

template<typename Result = void, typename Dispatcher = detail::visitor::NoDispatcher, typename Erased = Node>
using	PostOrder = detail::visitor::Visitor< Result, Dispatcher, Erased, detail::visitor::Order::Post >

Functions
template<typename N >
N &	current (const Path< N > &path)

const Node &	parent (const Path< const Node > &path, int parent_nr=1)

Node &	parent (const Path< Node > &path, int parent_nr=1)

template<typename T , IF_NOT_SAME(T, Node) >
std::optional< const T >	findParent (const Path< Node > &path)

template<typename T , IF_NOT_SAME(T, Node) >
std::optional< const T >	findParent (const Path< const Node > &path)

Detailed Description

Visitor performing a pre-order iteration over an AST.

Typedef Documentation

◆ Path

template<typename N >

using hilti::visitor::Path = typedef std::vector<std::reference_wrapper<N> >

Represents a path inside an AST from the root node to a node reached during iteration.

◆ PostOrder

template<typename Result = void, typename Dispatcher = detail::visitor::NoDispatcher, typename Erased = Node>

using hilti::visitor::PostOrder = typedef detail::visitor::Visitor<Result, Dispatcher, Erased, detail::visitor::Order::Post>

Visitor performing a post-order iteration over an AST.

Function Documentation

◆ current()

template<typename N >

N& hilti::visitor::current ( const Path< N > & path )

Given an AST path, returns the current node.

◆ findParent() [1/2]

template<typename T , IF_NOT_SAME(T, Node) >

std::optional<const T> hilti::visitor::findParent ( const Path< Node > & path )

Given an AST path, return the first parent of the current node that has a given type.

◆ findParent() [2/2]

template<typename T , IF_NOT_SAME(T, Node) >

std::optional<const T> hilti::visitor::findParent ( const Path< const Node > & path )

Given an AST path, return the first parent of the current node that has a given type.

◆ parent() [1/2]

const Node& hilti::visitor::parent	(	const Path< const Node > &	path,
		int	parent_nr = `1`
	)

inline

Given an AST path, returns a parent to the current node.

Parameters

path	AST path
parent_nr	number of the parent to return; 1 returns immediate parent, 2 the 2nd, etc.

Exceptions

<tt>std::out_of_range</tt> if the requested parent does not exist

◆ parent() [2/2]

Node& hilti::visitor::parent	(	const Path< Node > &	path,
		int	parent_nr = `1`
	)