(arg) - Ruby

argument positions in method calls

(arg pos? val?)

Where:

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

Examples

Find calls that pass a block name as the first argument.

(call _ (arg 1 (str /block_/)))

Selects in lines { 1, 3 } but not in { 2 }:

render "block_header"
render "header"
render "block_footer"

---

Locate open calls that write to disk.

(call (id open) (arg 2 (str "w")))

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

File.open(path, "w")
File.open(path, "r")
open(path, "w")

---

Find calls that include a second argument.

(call _ (arg 2))

Selects in lines { 2, 3 } but not in { 1 }:

foo(1)
foo(1, 2)
bar(1, 2, 3)

---

Arguments

pos

1. Number
2. Numeric Range

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

val

1. Identifier: shorthand for (id)
   
2. String: shorthand for (str)
   
3. (:into)
4. (:nearest)
5. (:and)
6. (:or)
7. (:not)
8. (:text)
9. (:kind)
10. (:replace)
11. (:replace-in)
12. (:capture)
13. (:ref)
14. (call)
15. (id)
16. (num)
17. (proc)
18. (str)