tmplwalk

Documentation

Index

• func Inspect(node parse.Node, f func(parse.Node) bool)
• func Walk(v Visitor, node parse.Node)
• type Visitor

Functions

func Inspect

func Inspect(node parse.Node, f func(parse.Node) bool)

Inspect traverses a template parse tree in depth-first order: It starts by calling f(node); node must not be nil. If f returns true, Inspect invokes f for all the non-nil children of node, recursively.

func Walk

func Walk(v Visitor, node parse.Node)

Walk traverses a template parse tree in depth-first order: It starts by calling v.Visit(node); node must not be nil. If the visitor w returned by v.Visit(node) is not nil, Walk is invoked recursively with visitor w for each of the non-nil children of node, followed by a call of w.Visit(nil).

Types

type Visitor

type Visitor interface {
	Visit(node parse.Node) (w Visitor)
}

A Visitor's Visit method is invoked for each node encountered by Walk. If the result visitor w is not nil, Walk visits each of the children of node with the visitor w, followed by a call of w.Visit(nil).