find_nodes: Find Nodes in an RStatic Object

In nick-ulle/ast: Low-level Static Analysis Tools for R Code

Find Nodes in an RStatic Object

Description

This function traverses the given RStatic object and returns a list of all descendants that satisfy the given test function.

Usage

find_nodes(node, test, ..., recursive = TRUE, initial = list())

Arguments

node	(ASTNode) The RStatic object to search.
test	(function) The test function, which should accept an rstatic object to check as its first argument and return a scalar logical.
...	Additional arguments to the test function.
recursive	(logical) Search recursively in matching nodes?
initial	(list) Initial list of matching nodes.

Value

A list of matching nodes.

See Also

find_node_indices(), replace_nodes()

Examples

ast = quote_ast(
  function(x, y) {
    x = x + y
    function() x
  })

find_nodes(ast, is, "Function")

find_nodes(ast, is_symbol, "x")

nick-ulle/ast documentation built on May 14, 2024, 7:40 p.m.