Add to AnyNode and AnyNodeRef conversion methods to AstNode

[MichaReiser]

Summary

Adds the new as_any_node_ref and into_node_ref helpers to AstNode.
These methods can be useful to avoid monomorphization when working with generics constraint to AstNode.

/// Formats the leading comments of a node.
pub(crate) fn leading_comments<T>(node: &T) -> FormatLeadingComments
where
    T: AstNode,
{
    FormatLeadingComments {
        node: node.as_any_node_ref(),
    }
}

#[derive(Copy, Clone, Debug)]
pub(crate) struct FormatLeadingComments<'a> {
    node: AnyNodeRef<'a>,
}

You can see how FormatLeadingComments doesn't require a T: AstNode constraint.

Test Plan

I'm using this in my comment formatting branch.

[MichaReiser]

Current dependencies on/for this PR:

• main
  • PR Add to AnyNode and AnyNodeRef conversion methods to AstNode #4783 👈
    • PR Leading, Dangling, and Trailing comments formatting #4785
      • PR Format the comment content #4786
        • PR Format StmtExpr #4788
          • PR Format ExprName #4803

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[github-actions]

PR Check Results

Ecosystem

✅ ecosystem check detected no changes.

Benchmark

Linux

group                                      main                                   pr
-----                                      ----                                   --
linter/all-rules/large/dataset.py          1.01     16.7±0.49ms     2.4 MB/sec    1.00     16.5±0.40ms     2.5 MB/sec
linter/all-rules/numpy/ctypeslib.py        1.00      3.9±0.13ms     4.2 MB/sec    1.00      3.9±0.11ms     4.3 MB/sec
linter/all-rules/numpy/globals.py          1.01   499.7±23.45µs     5.9 MB/sec    1.00   496.2±19.13µs     5.9 MB/sec
linter/all-rules/pydantic/types.py         1.02      6.8±0.23ms     3.7 MB/sec    1.00      6.7±0.18ms     3.8 MB/sec
linter/default-rules/large/dataset.py      1.01      7.8±0.37ms     5.2 MB/sec    1.00      7.7±0.21ms     5.3 MB/sec
linter/default-rules/numpy/ctypeslib.py    1.00  1711.9±48.40µs     9.7 MB/sec    1.06  1809.2±122.94µs     9.2 MB/sec
linter/default-rules/numpy/globals.py      1.00    203.8±7.40µs    14.5 MB/sec    1.02   208.5±10.73µs    14.2 MB/sec
linter/default-rules/pydantic/types.py     1.01      3.6±0.10ms     7.1 MB/sec    1.00      3.5±0.13ms     7.2 MB/sec
parser/large/dataset.py                    1.00      6.0±0.19ms     6.8 MB/sec    1.00      6.0±0.16ms     6.8 MB/sec
parser/numpy/ctypeslib.py                  1.00  1169.4±46.95µs    14.2 MB/sec    1.02  1189.7±45.92µs    14.0 MB/sec
parser/numpy/globals.py                    1.00   120.0±10.27µs    24.6 MB/sec    1.02    122.7±6.77µs    24.0 MB/sec
parser/pydantic/types.py                   1.00      2.6±0.10ms     9.8 MB/sec    1.01      2.6±0.09ms     9.7 MB/sec

Windows

group                                      main                                   pr
-----                                      ----                                   --
linter/all-rules/large/dataset.py          1.06     19.4±0.47ms     2.1 MB/sec    1.00     18.4±0.64ms     2.2 MB/sec
linter/all-rules/numpy/ctypeslib.py        1.05      4.9±0.16ms     3.4 MB/sec    1.00      4.7±0.17ms     3.5 MB/sec
linter/all-rules/numpy/globals.py          1.03   572.2±18.59µs     5.2 MB/sec    1.00   556.3±16.55µs     5.3 MB/sec
linter/all-rules/pydantic/types.py         1.04      8.2±0.26ms     3.1 MB/sec    1.00      7.8±0.27ms     3.3 MB/sec
linter/default-rules/large/dataset.py      1.14     10.2±0.29ms     4.0 MB/sec    1.00      8.9±0.25ms     4.6 MB/sec
linter/default-rules/numpy/ctypeslib.py    1.11      2.1±0.07ms     7.9 MB/sec    1.00  1884.7±53.96µs     8.8 MB/sec
linter/default-rules/numpy/globals.py      1.03    243.7±9.19µs    12.1 MB/sec    1.00   235.7±13.27µs    12.5 MB/sec
linter/default-rules/pydantic/types.py     1.08      4.5±0.12ms     5.7 MB/sec    1.00      4.1±0.22ms     6.2 MB/sec
parser/large/dataset.py                    1.00      7.1±0.17ms     5.7 MB/sec    1.29      9.2±0.39ms     4.4 MB/sec
parser/numpy/ctypeslib.py                  1.00  1358.2±33.61µs    12.3 MB/sec    1.24  1683.3±55.23µs     9.9 MB/sec
parser/numpy/globals.py                    1.00    139.7±6.20µs    21.1 MB/sec    1.19    166.0±9.82µs    17.8 MB/sec
parser/pydantic/types.py                   1.00      3.1±0.13ms     8.2 MB/sec    1.25      3.9±0.22ms     6.6 MB/sec