README
¶
astinfo
Package astinfo records useful AST information like node parents and such.
Installation:
Go version 1.16+
go get github.com/go-toolsmith/astinfo
Example
package main
import (
"fmt"
"go/ast"
"github.com/go-toolsmith/astinfo"
)
func main() {
innermost := &ast.Ident{}
root := &ast.ExprStmt{
X: &ast.BinaryExpr{
X: &ast.BasicLit{},
Y: &ast.UnaryExpr{X: innermost},
},
}
info := astinfo.Info{Parents: make(map[ast.Node]ast.Node)}
info.Origin = root
info.Resolve()
for p := info.Parents[innermost]; p != nil; p = info.Parents[p] {
fmt.Printf("%T\n", p)
}
// Output:
// *ast.UnaryExpr
// *ast.BinaryExpr
// *ast.ExprStmt
}
License
Documentation
¶
Overview ¶
Package astinfo records useful AST information like node parents and such.
Example ¶
package main
import (
"fmt"
"go/ast"
"github.com/go-toolsmith/astinfo"
)
func main() {
innermost := &ast.Ident{}
root := &ast.ExprStmt{
X: &ast.BinaryExpr{
X: &ast.BasicLit{},
Y: &ast.UnaryExpr{X: innermost},
},
}
info := astinfo.Info{Parents: make(map[ast.Node]ast.Node)}
info.Origin = root
info.Resolve()
for p := info.Parents[innermost]; p != nil; p = info.Parents[p] {
fmt.Printf("%T\n", p)
}
}
Output: *ast.UnaryExpr *ast.BinaryExpr *ast.ExprStmt
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Info ¶
type Info struct {
// Origin is a node that was used to collect all the
// information stored inside this object.
Origin ast.Node
// Parents maps child AST not to its parent.
//
// Does not contain top-level nodes, so the lookup will
// return nil for those.
Parents map[ast.Node]ast.Node
}
Info holds AST metadata collected during Origin field traversal.
Source Files
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