=====================================
simple literal
=====================================

[a_b@12?: 1, A_B@12!: 2]

---

(source
  (list
    (keywords
      (pair
        (keyword
          (atom_literal))
        (integer))
      (pair
        (keyword
          (atom_literal))
        (integer)))))

=====================================
trailing separator
=====================================

[a: 1,]

---

(source
  (list
    (keywords
      (pair
        (keyword
          (atom_literal))
        (integer)))))

=====================================
with leading items
=====================================

[1, {:c, 1}, a: 1, b: 2]

---

(source
  (list
    (integer)
    (tuple
      (atom
        (atom_literal))
      (integer))
    (keywords
      (pair
        (keyword
          (atom_literal))
        (integer))
      (pair
        (keyword
          (atom_literal))
        (integer)))))

=====================================
operator key
=====================================

[~~~: 1, ==: 2, >: 3]

---

(source
  (list
    (keywords
      (pair
        (keyword
          (atom_literal))
        (integer))
      (pair
        (keyword
          (atom_literal))
        (integer))
      (pair
        (keyword
          (atom_literal))
        (integer)))))

=====================================
quoted key
=====================================

[
  "key1 ?? !! ' \n": 1,
  'key2 ?? !! " \n': 2
]

---

(source
  (list
    (keywords
      (pair
        (keyword
          (string_content)
          (escape_sequence))
        (integer))
      (pair
        (keyword
          (string_content)
          (escape_sequence))
        (integer)))))

=====================================
key interpolation
=====================================

[
  "hey #{name}!": 1,
  'hey #{name}!': 2
]

---

(source
  (list
    (keywords
      (pair
        (keyword
          (string_content)
          (interpolation
            (identifier))
          (string_content))
        (integer))
      (pair
        (keyword
          (string_content)
          (interpolation
            (identifier))
          (string_content))
        (integer)))))

=====================================
[error] with trailing items
=====================================

[a: 1, b: 2, 1]

---

(source
  (list
    (ERROR
      (keywords
        (pair
          (keyword
            (atom_literal)))
        (pair
          (keyword
            (atom_literal)))))
    (integer)))