vtcode 0.123.7

A Rust-based terminal coding agent with modular architecture supporting multiple LLM providers
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55

id: let-chain-candidate
language: Rust
severity: hint
message: Nested `if`/`if let` can be collapsed into a Rust 2024 let-chain.
note: |
  Rust 2024 supports let-chains, allowing `if let Some(x) = a && let Some(y) = b`
  instead of nested `if let` blocks. This rule detects candidates for
  simplification. Only refactor when the project's MSRV is Rust 2024 edition
  or later.
utils:
  sole-child:
    all:
      - nthChild: 1
      - nthChild:
          position: 1
          reverse: true
  if-no-else:
    kind: if_expression
    not:
      has:
        field: alternative
        kind: else_clause
  if-let-no-else:
    matches: if-no-else
    has:
      field: condition
      kind: let_condition
  sole-inner-if-stmt:
    kind: expression_statement
    matches: sole-child
    has:
      matches: if-no-else
  sole-inner-if-let-stmt:
    kind: expression_statement
    matches: sole-child
    has:
      matches: if-let-no-else
rule:
  matches: if-no-else
  has:
    field: consequence
    kind: block
    has:
      matches: sole-inner-if-stmt
  any:
    - matches: if-let-no-else
    - has:
        field: consequence
        kind: block
        has:
          matches: sole-inner-if-let-stmt
metadata:
  url: https://doc.rust-lang.org/nightly/edition-guide/rust-2024/let-chains.html
files:
  - "**/*.rs"