From 4340d7df47e504e3d354047d529056b465fd79e8 Mon Sep 17 00:00:00 2001
From: Vladislav Mamon <norskeld@gmail.com>
Date: Sat, 22 Jan 2022 17:07:42 +0500
Subject: [PATCH] refactor: remove `lazy` parser

The `defer` parser is superior to it at every aspect.

BREAKING CHANGE:

This parser can no longer be used.
---
 src/internal/parsers/lazy.ts        |  9 ---------
 src/parsers.ts                      |  1 -
 tests/internal/parsers/lazy.spec.ts | 22 ----------------------
 3 files changed, 32 deletions(-)
 delete mode 100644 src/internal/parsers/lazy.ts
 delete mode 100644 tests/internal/parsers/lazy.spec.ts

diff --git a/src/internal/parsers/lazy.ts b/src/internal/parsers/lazy.ts
deleted file mode 100644
index 53256da..0000000
--- a/src/internal/parsers/lazy.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { State, Parser } from '../state'
-
-export function lazy<T>(thunk: () => Parser<T>): Parser<T> {
-  return {
-    parse(state: State) {
-      return thunk().parse(state)
-    }
-  }
-}
diff --git a/src/parsers.ts b/src/parsers.ts
index f210cfa..0560878 100644
--- a/src/parsers.ts
+++ b/src/parsers.ts
@@ -2,7 +2,6 @@ export * from './internal/parsers/defer'
 export * from './internal/parsers/eof'
 export * from './internal/parsers/float'
 export * from './internal/parsers/integer'
-export * from './internal/parsers/lazy'
 export * from './internal/parsers/letter'
 export * from './internal/parsers/newline'
 export * from './internal/parsers/nothing'
diff --git a/tests/internal/parsers/lazy.spec.ts b/tests/internal/parsers/lazy.spec.ts
deleted file mode 100644
index a9ed213..0000000
--- a/tests/internal/parsers/lazy.spec.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-import { string } from '@lib/internal/parsers/string'
-import { lazy } from '@lib/internal/parsers/lazy'
-
-import { run, result, should } from '@tests/@helpers'
-
-describe(lazy, () => {
-  it(`should succeed with value of the lazily evaluated parser`, () => {
-    const parser = lazy(() => string('lazy-loaded'))
-    const actual = run(parser, 'lazy-loaded')
-    const expected = result('success', 'lazy-loaded')
-
-    should.matchState(actual, expected)
-  })
-
-  it(`should fail with expectation of the lazily evaluated parser`, () => {
-    const parser = lazy(() => string('spok!'))
-    const actual = run(parser, 'speak!')
-    const expected = result('failure', 'spok!')
-
-    should.matchState(actual, expected)
-  })
-})