module Noir::TreeSitterKotlinRouteExtractor

Overview

Tree-sitter-backed Kotlin route extractor.

Scope for this first cut: Spring-style annotation routing — class-level @RequestMapping-family annotations composing with method-level mapping annotations. Mirrors TreeSitterJavaRouteExtractor but for Kotlin's distinct AST shape (annotations live in modifiers, functions use function_declaration, primary constructors carry DTO fields, etc.).

Covered:

• @GetMapping, @PostMapping, @PutMapping, @DeleteMapping, @PatchMapping — each fixes the HTTP verb
• @RequestMapping — generic; verb from method = RequestMethod.X (single or array form), or GET when absent
• Class-level mapping annotations contribute a prefix joined onto the per-method path with exactly one / separator
• Path supplied positionally (@GetMapping("/x")) or via value = "/x" / path = "/x" keyword arguments, including string arrays (value = ["/a", "/b"])
• Multi-line annotations — the grammar eats whitespace for us

Not covered yet (follow-ups):

• Ktor's DSL routing { get("/x") { ... } }. That's a different authoring style and lives in a separate walker.
• Meta-annotations (custom annotations composing @RequestMapping).

Extended Modules

• Noir::TreeSitterKotlinRouteExtractor

Defined in:

miniparsers/kotlin_route_extractor_ts.cr

Constant Summary

ANNOTATION_VERBS = {"GetMapping" => "GET", "PostMapping" => "POST", "PutMapping" => "PUT", "DeleteMapping" => "DELETE", "PatchMapping" => "PATCH", "RequestMapping" => nil}

Spring mapping annotation names → HTTP verb. nil means look at the annotation's method = argument. Same table as the Java extractor for consistency.

Instance Method Summary

• #extract_routes(source : String, string_constants = Hash(String, String).new) : Array(Route)
• #extract_routes_from(root : LibTreeSitter::TSNode, source : String, string_constants = Hash(String, String).new) : Array(Route)

  _from(root, source) — accept a pre-parsed root so the Kotlin Spring analyzer can amortise the parse across multiple extractions on the same file.

• #extract_string_constants(source : String) : Hash(String, String)

Instance Method Detail