Code lost on multi-line ternary expressions with \ continuations

[portlek]

Description:
The formatter incorrectly breaks multi-line ternary expressions (true if condition else false) that use line continuation (\). Instead of preserving the expression on a single logical line, it splits the tokens across multiple lines in a way that produces invalid syntax.

Input:

func _test() -> void:
    var test: bool = true \
        if not false \
        else false

Output (broken):

func _test() -> void:
    var test: bool = true
    \
     if
    not false \

Expected:
The formatter should preserve the ternary expression on a single logical line, either as-is or reformatted in a way that maintains valid GDScript syntax.

[NathanLovato]

Thanks for the reports! Note for self: probably same issue as binary operators, needs looping over anonymous AST nodes + order check + check comments.

var test = true \
    if not false \
    else false

Parse tree:

(source [0, 0] - [3, 0]
  (variable_statement [0, 0] - [2, 14]
    name: (name [0, 4] - [0, 8])
    value: (conditional_expression [0, 11] - [2, 14]
      left: (true [0, 11] - [0, 15])
      (line_continuation [0, 16] - [1, 0])
      condition: (unary_operator [1, 7] - [1, 16]
        (false [1, 11] - [1, 16]))
      (line_continuation [1, 17] - [2, 0])
      right: (false [2, 9] - [2, 14]))))