diff --git a/src/parse/cst-stream.ts b/src/parse/cst-stream.ts
deleted file mode 100644
index 60542bcd..00000000
--- a/src/parse/cst-stream.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-import { Transform, TransformOptions } from 'stream'
-import { StringDecoder } from 'string_decoder'
-import { Parser } from './parser.js'
-
-export type ParseStreamOptions = Omit<
-  TransformOptions,
-  'decodeStrings' | 'emitClose' | 'objectMode'
->
-
-export class CSTStream extends Transform {
-  decoder: StringDecoder
-  parser: Parser
-
-  constructor(options: ParseStreamOptions = {}) {
-    super({
-      ...options,
-      decodeStrings: false,
-      emitClose: true,
-      objectMode: true
-    })
-    this.decoder = new StringDecoder(options.defaultEncoding || 'utf8')
-    this.parser = new Parser(token => this.push(token))
-  }
-
-  _flush(done: (error?: Error) => void) {
-    this.parser.parse('', false)
-    done()
-  }
-
-  _transform(chunk: string | Buffer, _: any, done: (error?: Error) => void) {
-    try {
-      const src = Buffer.isBuffer(chunk) ? this.decoder.write(chunk) : chunk
-      this.parser.parse(src, true)
-      done()
-    } catch (error) {
-      done(error) // should never happen
-    }
-  }
-}
diff --git a/src/parse/test.ts b/src/parse/test.ts
deleted file mode 100644
index 3a435a70..00000000
--- a/src/parse/test.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-import { CSTStream } from './cst-stream.js'
-import { Parser } from './parser.js'
-
-export function stream(source: string) {
-  const ps = new CSTStream().on('data', d => console.dir(d, { depth: null }))
-  ps.write(source)
-  ps.end()
-}
-
-export function test(source: string) {
-  const lines: number[] = []
-  const parser = new Parser(
-    t => console.dir(t, { depth: null }),
-    n => lines.push(n)
-  )
-  parser.parse(source)
-  console.log({ lines })
-}