Function walk

Tree-traversal utilities modeled on Python's ast module.

walk — iterate over every node in a tree, breadth-first.
NodeVisitor — base class for read-only tree visitors.
NodeTransformer — base class for tree-rewriting visitors.

walk(node: ASTNodeUnion): Generator<ASTNodeUnion>
Recursively walks an AST node and all of its descendants, yielding each node in pre-order (a node is yielded before its children).

Child nodes are discovered generically by inspecting each own property of the current node: array properties are scanned for elements that look like AST nodes (objects with a nodeType property), and object properties are recursed into directly if they look like an AST node. The nodeType property itself is skipped.
Parameters
- node: ASTNodeUnion
  The root AST node to start walking from.
Returns Generator<ASTNodeUnion>
A generator that lazily yields node and every descendant node, in pre-order.
Example
```
for (const node of walk(moduleNode)) {
  console.log(node.nodeType);
}
```
- Defined in visitor.ts:28