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Linter: no-else-return failing to detect return in this case

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
68/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
godot, rust
Domain
tooling

Research direction

Start at the linter implementation for the no-else-return rule and reproduce the warning with the provided nested if/else snippet. Done means the rule no longer reports the final else as unnecessary when the preceding branch can continue, with regression coverage for this case.

Written by the indexing model from the issue text.

Description

There is a bug in your linter that causes it to not recognize that the designated block can fail the if statement and skip the return statement:

  1. The incorrect warning is:
    “WARNING on line 75 (no-else-return)
    Unnecessary 'else' after 'if'/'elif' blocks that end with 'return'”

  2. The code that triggered this error is:
    ...
    #Return false if vector_angle falls between start_arc and end_arc.
    #This will ensure that weapons can only fire within their designated arcs.
    if end_arc > start_arc:
    if vector_angle > end_arc or vector_angle < start_arc:
    return false
    else:
    if vector_angle > end_arc and vector_angle < start_arc:
    return false

    #Ensure target is within range
    if vector_to_target.length() > ability_range:
    return false
    else:
    return true

Dominant language
Rust
Stars
458
Forks
40
Avg merge
1d 15h
Merged PRs (30d)
4

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