(arg)

argument positions in call sites and function parameters

(arg pos? val?)

Where:

1. pos: position in the list (1-based) *
2. val: value at that position *

Examples

Find calls that pass None as a fallback value.

(call _ (arg 2 (id None)))

Selects in lines { 1 } but not in { 2 }:

cache.get(key, None);
cache.get(key, Some(value));

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Find handlers whose first parameter is ctx.

(fun _ (arg 1 (id ctx)))

Selects in lines { 1 } but not in { 2 }:

fn handle(ctx: &Context, req: Request) {}
fn render(req: Request) {}

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Arguments

pos

• Number • Numeric Range

Does NOT support: Composition — Free-form Selection — Refinement — Replacement

val

• Identifier: shorthand for (id)
• String: shorthand for (str)
• (:kind) • (:ref) • (:text) • (call) • (enum) • (fun) • (id) • (mem) • (num) • (str) • (:into) • (:and) • (:or) • (:not) • (:replace) • (:capture)