README
¶
trav
This package is an extension to the native ast.Walk function. It traverses the Go AST and calls a hander function for each node. It includes the whole path that leads to the current node as a slice.
Installation
This package is go-gettable.
$ go get -u github.com/noxer/trav
Usage
Start by defining your handler function, it is called once for each node in the AST.
func handler(p trav.Path) {
// do stuff
}
trav.Path is a slice of ast.Nodes, you can range over it. Call p.Current() to get the current node (the last one in the slice). If you want to continue using the slice once the handler has returned, you can call p.Copy to create a copy of the slice. The original slice will be reused in the next iteration.
Now you can call one of the trav.Traverse*() functions to traverse the AST.
trav.TraverseFile("code.go", handler)
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func Break ¶
func Break()
Break terminates the traversal of the AST. Must not be called outside a traversal function.
func TraverseFile ¶
TraverseFile traverses the AST of a Go file, calling f with a slice containing the full path of nodes leading to the current node. The last element is the current node.
func TraverseNode ¶
TraverseNode traverses the subtree of a ast.Node, calling f with a slice containing the full path of nodes leading to the current node. The last element is the current node.
func TraverseSource ¶
TraverseSource traverses the AST of a Go source string, calling f with a slice containing the full path of nodes leading to the current node. The last element is the current node.
Source Files