Remove getCharacterLastIndex

Author: fisker

src/source.ts

@@ -2,11 +2,7 @@ import * as angular from '@angular/compiler';
 import type * as babel from '@babel/types';
 
 import type { LocationInformation, NGNode, RawNGSpan } from './types.ts';
-import {
-  getCharacterIndex,
-  getCharacterLastIndex,
-  sourceSpanToLocationInformation,
-} from './utils.ts';
+import { getCharacterIndex, sourceSpanToLocationInformation } from './utils.ts';
 
 export class Source {
   text;
@@ -19,10 +15,6 @@ export class Source {
     return getCharacterIndex(this.text, pattern, index);
   }
 
-  getCharacterLastIndex(pattern: RegExp | string, index: number) {
-    return getCharacterLastIndex(this.text, pattern, index);
-  }
-
   transformSpan(span: RawNGSpan): LocationInformation {
     return sourceSpanToLocationInformation(span);
   }

src/utils.test.ts

@@ -1,15 +1,8 @@
-import { getCharacterIndex, getCharacterLastIndex } from './utils.ts';
+import { getCharacterIndex } from './utils.ts';
 
 test('getCharacterIndex', () => {
   expect(getCharacterIndex('foobar', /o/, 0)).toBe(1);
   expect(getCharacterIndex('foobar', /o/, 1)).toBe(1);
   expect(getCharacterIndex('foobar', 'o', 0)).toBe(1);
   expect(() => getCharacterIndex('foobar', '_', 0)).toThrow();
 });
-
-test('getCharacterLastIndex', () => {
-  expect(getCharacterLastIndex('foobar', /o/, 6)).toBe(2);
-  expect(getCharacterLastIndex('foobar', /o/, 2)).toBe(2);
-  expect(getCharacterLastIndex('foobar', 'o', 6)).toBe(2);
-  expect(() => getCharacterLastIndex('foobar', '_', 6)).toThrow();
-});

src/utils.ts

@@ -8,29 +8,6 @@ function getCharacterSearchTestFunction(pattern: RegExp | string) {
   return (character: string) => pattern.test(character);
 }
 
-export function getCharacterLastIndex(
-  text: string,
-  pattern: RegExp | string,
-  fromIndex: number,
-) {
-  const test = getCharacterSearchTestFunction(pattern);
-
-  for (let index = fromIndex; index >= 0; index--) {
-    const character = text[index];
-
-    if (test(character)) {
-      return index;
-    }
-  }
-
-  /* c8 ignore next 4 @preserve */
-  throw new Error(
-    `Cannot find front char ${pattern} from index ${fromIndex} in ${JSON.stringify(
-      text,
-    )}`,
-  );
-}
-
 export function getCharacterIndex(
   text: string,
   pattern: RegExp | string,