feat: 🚀add locations validating in static method

Author: TyrealHu

README.md

@@ -54,6 +54,17 @@ export {
 })
 ```
 
+## Notice
+- You have to enable options.locations while using acorn-typescript
+```ts
+acorn.parse(input, {
+    sourceType: 'module',
+    ecmaVersion: 'latest',
+    // here
+    locations: true
+  })
+```
+
 ## SUPPORTED
 - Typescript normal syntax
 - Support to parse TypeScript [Decorators](https://www.typescriptlang.org/docs/handbook/decorators.html)

src/index.ts

@@ -5058,6 +5058,12 @@ function tsPlugin(options?: {
       }
 
       static parse(input: string, options: Options) {
+        if (options.locations === false) {
+          throw new Error(`You have to enable options.locations while using acorn-typescript`)
+        } else {
+          options.locations = true
+        }
+
         const parser = new this(options, input)
         if (dts) {
           parser.isAmbientContext = true
@@ -5066,6 +5072,12 @@ function tsPlugin(options?: {
       }
 
       static parseExpressionAt(input: string, pos: number, options: Options) {
+        if (options.locations === false) {
+          throw new Error(`You have to enable options.locations while using acorn-typescript`)
+        } else {
+          options.locations = true
+        }
+
         const parser = new this(options, input, pos)
         if (dts) {
           parser.isAmbientContext = true