refactor: Created parsers.ts

Author: ijlee2

src/main.ts

@@ -1,14 +1,10 @@
-import type { Parser, Plugin, Printer } from 'prettier';
+import type { Plugin, Printer } from 'prettier';
 
 import { languages } from './languages.js';
 import { options } from './options.js';
-import { parser } from './parse/index.js';
+import { parsers } from './parsers.js';
 import { printer } from './print/index.js';
-import { type NodeType, PARSER_NAME, PRINTER_NAME } from './utils/index.js';
-
-const parsers: Record<string, Parser<NodeType>> = {
-  [PARSER_NAME]: parser,
-};
+import { type NodeType, PRINTER_NAME } from './utils/index.js';
 
 const printers: Record<string, Printer<NodeType>> = {
   [PRINTER_NAME]: printer,

src/parsers.ts

@@ -0,0 +1,27 @@
+import type { File } from '@babel/types';
+import type { Parser, ParserOptions } from 'prettier';
+import { parsers as prettierParsers } from 'prettier/plugins/babel.js';
+
+import { convertAst, preprocess } from './parsers/index.js';
+import { assert } from './utils/assert.js';
+import { type NodeType, PARSER_NAME, PRINTER_NAME } from './utils/index.js';
+
+const parser = prettierParsers['babel-ts'] as Parser<NodeType>;
+
+async function parse(text: string, options: ParserOptions<NodeType>) {
+  const preprocessed = preprocess(text, options.filepath);
+
+  const ast = await parser.parse(preprocessed.code, options);
+  assert('expected ast', ast);
+  convertAst(ast as File, preprocessed.templates);
+
+  return ast;
+}
+
+export const parsers: Record<string, Parser<NodeType>> = {
+  [PARSER_NAME]: {
+    ...parser,
+    astFormat: PRINTER_NAME,
+    parse,
+  },
+};

src/parse/index.ts src/parsers/convert-ast.tssrc/parse/index.ts renamed to src/parsers/convert-ast.ts

@@ -2,19 +2,12 @@ import { traverse } from '@babel/core';
 import type {
   BlockStatement,
   File,
-  Node,
   ObjectExpression,
   StaticBlock,
 } from '@babel/types';
-import type { Parser } from 'prettier';
-import { parsers as babelParsers } from 'prettier/plugins/babel.js';
 
-import type { PluginOptions } from '../options.js';
 import { assert } from '../utils/assert.js';
-import { PRINTER_NAME } from '../utils/index.js';
-import { preprocess, type Template } from './preprocess.js';
-
-const typescript = babelParsers['babel-ts'] as Parser<Node | undefined>;
+import type { Template } from './preprocess.js';
 
 /** Converts a node into a GlimmerTemplate node */
 function convertNode(
@@ -29,7 +22,7 @@ function convertNode(
 }
 
 /** Traverses the AST and replaces the transformed template parts with other AST */
-function convertAst(ast: File, templates: Template[]): void {
+export function convertAst(ast: File, templates: Template[]): void {
   traverse(ast, {
     enter(path) {
       const { node } = path;
@@ -89,18 +82,3 @@ function convertAst(ast: File, templates: Template[]): void {
     );
   }
 }
-
-export const parser: Parser<Node | undefined> = {
-  ...typescript,
-  astFormat: PRINTER_NAME,
-
-  async parse(code: string, options: PluginOptions): Promise<Node> {
-    const preprocessed = preprocess(code, options.filepath);
-
-    const ast = await typescript.parse(preprocessed.code, options);
-    assert('expected ast', ast);
-    convertAst(ast as File, preprocessed.templates);
-
-    return ast;
-  },
-};

src/parsers/index.ts

@@ -0,0 +1,2 @@
+export * from './convert-ast.js';
+export * from './preprocess.js';

src/parse/preprocess.ts src/parsers/preprocess.tssrc/parse/preprocess.ts renamed to src/parsers/preprocess.ts

@@ -3,7 +3,7 @@ import { describe, expect, test } from 'vitest';
 import {
   codeToGlimmerAst,
   preprocessTemplateRange,
-} from '../../src/parse/preprocess.js';
+} from '../../src/parsers/preprocess.js';
 
 const TEST_CASES = [
   {