query

local query = require("@std/syntax/query")

query.filter

Retains only the nodes for which pred returns true. Mutates and returns the query.

(self: Query<T>, pred: (T) -> boolean) -> Query<T>

query.findAll

Recursively visits every descendant of each node in the query and collects those for which fn returns a non-nil value. Mutates and returns the query.

(self: Query<T>, fn: (Node) -> U?) -> Query<U>

query.findAllFromRoot

Creates a new Query by visiting every node in ast and collecting those for which fn returns a non-nil value.

(ast: types.ParseResult | Node, fn: (Node) -> T?) -> Query<T>

query.flatMap

Replaces each node with the array of values returned by fn, flattening one level. Mutates and returns the query.

(self: Query<T>, fn: (T) -> { U }) -> Query<U>

query.forEach

Calls callback on each node. Returns the query unchanged for chaining.

(self: Query<T>, callback: (T) -> ()) -> Query<T>

query.map

Replaces the query's nodes with the non-nil values returned by fn for each node. Mutates and returns the query.

(self: Query<T>, fn: (T) -> U?) -> Query<U>

query.mapToArray

Returns a plain array of the non-nil values produced by calling fn on each node. Does not mutate the query.

(self: Query<T>, fn: (T) -> U?) -> { U }

query.replace

Calls repl on each node and collects the non-nil results into a Replacements table for use with the printer.

(self: Query<T>, repl: (T) -> string?) -> types.Replacements