AppendInLoop.has: def of bend-lint-rules@0.2.0.0
Import: import bend-lint-rules@0.2.0.0/performance/append_in_loop.bend as AppendInLoop
Lines 88-98 of bend-lint-rules@0.2.0.0/performance/append_in_loop.bend: https://jend.leeeet.dev/read.txt?path=bend-lint-rules@0.2.0.0/performance/append_in_loop.bend&start_line=88&end_line=98

import Base
import bend-lint-api@0.2.0.0/linter/lint.bend as Lint

# Whether a variable the file writes, of the binder `b`, is among `nodes` or under them, or `found`.
def has(nodes: List<&2, Lint.Node>, +b: U32, found: Bool) -> Bool:
  match nodes found:
    case _ True{}:
      True{}
    case Nil{} False{}:
      False{}
    case Con{Lint.Node{Lint.Variable{v}, n, Some{s}, k, f}, rest} False{}:
      has(rest, b, U32.is_eq(v, b))
    case Con{Lint.Node{syntax, n, s, kids, f}, rest} False{}:
      has(rest, b, has(kids, b, False{}))

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq
  https://jend.leeeet.dev/definition.txt?path=bend-lint-api@0.2.0.0/linter/lint.bend&name=Node
  https://jend.leeeet.dev/definition.txt?path=bend-lint-api@0.2.0.0/linter/lint.bend&name=Syntax