parse real file

Author: rochdev

acorn.js

@@ -1,27 +1,31 @@
 'use strict'
 
 const acorn = require('acorn')
+const file = require('fs').readFileSync('./node_modules/express/lib/request.js', 'utf8')
 
-const code = `async function test () {
-  const foo = globalThis.query()
+// console.log('hello')
+acorn.parse(file)
 
-  return await foo
-}
+// const code = `async function test () {
+//   const foo = globalThis.query()
 
-foo()`
+//   return await foo
+// }
 
-const ast = acorn.parse(code, { ecmaVersion: 2020 })
+// foo()`
 
-console.log(ast.body)
+// const ast = acorn.parse(code, { ecmaVersion: 2020 })
 
-const before = code.slice(0, 24)
-const body = code.slice(24, 78)
-const after = code.slice(78)
+// console.log(ast.body)
 
-const prefix = 'const ctx = {};return tracingChannel(\'test\').tracePromise(ctx, async () => {'
-const suffix = '})'
+// const before = code.slice(0, 24)
+// const body = code.slice(24, 78)
+// const after = code.slice(78)
 
-const patched = before + prefix + body + suffix + after
+// const prefix = 'const ctx = {};return tracingChannel(\'test\').tracePromise(ctx, async () => {'
+// const suffix = '})'
 
-console.log(patched)
-console.log(acorn.parse(patched))
+// const patched = before + prefix + body + suffix + after
+
+// console.log(patched)
+// console.log(acorn.parse(patched))

oxc.js

@@ -1,40 +1,41 @@
 'use strict'
 
 const { parseSync, Visitor } = require('oxc-parser')
+const code = require('fs').readFileSync('./node_modules/express/lib/request.js', 'utf8')
 
-const code = 'const url: String = /* 🤨 */ import.meta.url;'
+// const code = 'const url: String = /* 🤨 */ import.meta.url;'
 
 // File extension is used to determine which dialect to parse source as.
-const filename = 'test.tsx'
+const filename = 'request.js'
 
 const result = parseSync(filename, code)
 // or `await parseAsync(filename, code)`
 
 // An array of errors, if any.
 console.log(result.errors)
 
-// AST and comments.
-console.log(result.program, result.comments)
+// // AST and comments.
+// console.log(result.program, result.comments)
 
-// ESM information - imports, exports, `import.meta`s.
-console.log(result.module)
+// // ESM information - imports, exports, `import.meta`s.
+// console.log(result.module)
 
 // Visit the AST
-const visitations = []
-
-const visitor = new Visitor({
-  VariableDeclaration (decl) {
-    visitations.push(`enter ${decl.kind}`)
-  },
-  'VariableDeclaration:exit' (decl) {
-    visitations.push(`exit ${decl.kind}`)
-  },
-  Identifier (ident) {
-    visitations.push(ident.name)
-  },
-})
-
-visitor.visit(result.program)
+// const visitations = []
+
+// const visitor = new Visitor({
+//   VariableDeclaration (decl) {
+//     visitations.push(`enter ${decl.kind}`)
+//   },
+//   'VariableDeclaration:exit' (decl) {
+//     visitations.push(`exit ${decl.kind}`)
+//   },
+//   Identifier (ident) {
+//     visitations.push(ident.name)
+//   },
+// })
+
+// visitor.visit(result.program)
 
 // Logs: [ 'enter const', 'url', 'String', 'import', 'meta', 'url', 'exit const' ]
-console.log(visitations)
+// console.log(visitations)

swc.js

@@ -3,28 +3,29 @@
 const swc = require('@swc/core')
 
 async function parseCode () {
-  const code = `
-    import { useState } from 'react';
+  const code = require('fs').readFileSync('./node_modules/express/lib/request.js', 'utf8')
+  // const code = `
+  //   import { useState } from 'react';
 
-    function MyComponent() {
-      const [count, setCount] = useState(0);
+  //   function MyComponent() {
+  //     const [count, setCount] = useState(0);
 
-      const increment = () => {
-        setCount(count + 1);
-      };
+  //     const increment = () => {
+  //       setCount(count + 1);
+  //     };
 
-      return 'test';
-    }
-  `
+  //     return 'test';
+  //   }
+  // `
 
   try {
     const ast = await swc.parse(code, {
       syntax: 'ecmascript',
-      isModule: true,
+      isModule: false,
       comments: false,
     })
 
-    console.log(JSON.stringify(ast, null, 2))
+    // console.log(JSON.stringify(ast, null, 2))
   } catch (error) {
     console.error('Error parsing code:', error)
   }