walker

Documentation

Index

• type Walker
  • func New(path string) *Walker
  • func Parse(path, src string) *Walker
  • func (w *Walker) Walk(fun func(isLocal bool, node ast.Node))

Examples

• New
• Walker.Walk

Types

type Walker

type Walker struct {
	SrcFile string
	AstFile *ast.File
	FileSet *token.FileSet
}

func New

func New(path string) *Walker

Example

New("walker_test.go")

func Parse

func Parse(path, src string) *Walker

func (*Walker) Walk

func (w *Walker) Walk(fun func(isLocal bool, node ast.Node))

Example

w := Parse("example.go", `
package testdata

import "fmt"

func Hello() {
	fmt.Println("hello")
}
`)
w.Walk(func(isLocal bool, node ast.Node) {
	if isLocal {
		fmt.Printf("local %T\n", node)
	} else {
		fmt.Printf("%T\n", node)
	}
})

Output:

*ast.File
*ast.Ident
*ast.GenDecl
*ast.ImportSpec
*ast.BasicLit
*ast.FuncDecl
*ast.Ident
*ast.FuncType
*ast.FieldList
*ast.BlockStmt
local *ast.ExprStmt
local *ast.CallExpr
local *ast.SelectorExpr
local *ast.Ident
local *ast.Ident
local *ast.BasicLit