Add support for private identifiers (#209)

* Reproduce issue #208 related to private identifiers

* Fix bug

Author: olafurpg

snapshots/input/syntax/src/ClassWithPrivate.ts

@@ -0,0 +1,24 @@
+export class ClassWithPrivate {
+  #privateField
+  #privateFieldWithInitializer = 42
+
+  #privateMethod() {
+    this.#privateField = 'private field'
+    return this.#privateField
+  }
+
+  static #privateStaticField
+  static #privateStaticFieldWithInitializer = 42
+
+  static #privateStaticMethod() {}
+  public publicMethod(): any[] {
+    return [
+      this.#privateField,
+      this.#privateFieldWithInitializer,
+      this.#privateMethod(),
+      ClassWithPrivate.#privateStaticMethod(),
+      ClassWithPrivate.#privateStaticField,
+      ClassWithPrivate.#privateStaticFieldWithInitializer,
+    ]
+  }
+}

snapshots/input/syntax/tsconfig.json

@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
     "outDir": "dist",
-    "target": "ES5"
+    "target": "ES2015"
   }
 }

snapshots/output/syntax/src/ClassWithPrivate.ts

@@ -0,0 +1,54 @@
+  export class ClassWithPrivate {
+// definition syntax 1.0.0 src/`ClassWithPrivate.ts`/
+//documentation ```ts\nmodule "ClassWithPrivate.ts"\n```
+//             ^^^^^^^^^^^^^^^^ definition syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#
+//             documentation ```ts\nclass ClassWithPrivate\n```
+    #privateField
+//  ^^^^^^^^^^^^^ definition syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateField`.
+//  documentation ```ts\n(property) #privateField: any\n```
+    #privateFieldWithInitializer = 42
+//  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ definition syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateFieldWithInitializer`.
+//  documentation ```ts\n(property) #privateFieldWithInitializer: number\n```
+  
+    #privateMethod() {
+//  ^^^^^^^^^^^^^^ definition syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateMethod`().
+//  documentation ```ts\n(method) #privateMethod(): any\n```
+      this.#privateField = 'private field'
+//         ^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateField`.
+      return this.#privateField
+//                ^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateField`.
+    }
+  
+    static #privateStaticField
+//         ^^^^^^^^^^^^^^^^^^^ definition syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateStaticField`.
+//         documentation ```ts\n(property) #privateStaticField: any\n```
+    static #privateStaticFieldWithInitializer = 42
+//         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ definition syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateStaticFieldWithInitializer`.
+//         documentation ```ts\n(property) #privateStaticFieldWithInitializer: number\n```
+  
+    static #privateStaticMethod() {}
+//         ^^^^^^^^^^^^^^^^^^^^ definition syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateStaticMethod`().
+//         documentation ```ts\n(method) #privateStaticMethod(): void\n```
+    public publicMethod(): any[] {
+//         ^^^^^^^^^^^^ definition syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#publicMethod().
+//         documentation ```ts\n(method) publicMethod(): any[]\n```
+      return [
+        this.#privateField,
+//           ^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateField`.
+        this.#privateFieldWithInitializer,
+//           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateFieldWithInitializer`.
+        this.#privateMethod(),
+//           ^^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateMethod`().
+        ClassWithPrivate.#privateStaticMethod(),
+//      ^^^^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#
+//                       ^^^^^^^^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateStaticMethod`().
+        ClassWithPrivate.#privateStaticField,
+//      ^^^^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#
+//                       ^^^^^^^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateStaticField`.
+        ClassWithPrivate.#privateStaticFieldWithInitializer,
+//      ^^^^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#
+//                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ reference syntax 1.0.0 src/`ClassWithPrivate.ts`/ClassWithPrivate#`#privateStaticFieldWithInitializer`.
+      ]
+    }
+  }
+  

src/FileIndexer.ts

@@ -38,7 +38,7 @@ export class FileIndexer {
   }
   public index(): void {
     // Uncomment below if you want to skip certain files for local development.
-    // if (!this.sourceFile.fileName.includes('conflicting-const')) {
+    // if (!this.sourceFile.fileName.includes('ClassWithPrivate')) {
     //   return
     // }
     this.emitSourceFileOccurrence()
@@ -66,7 +66,11 @@ export class FileIndexer {
     )
   }
   private visit(node: ts.Node): void {
-    if (ts.isIdentifier(node) || ts.isStringLiteralLike(node)) {
+    if (
+      ts.isIdentifier(node) ||
+      ts.isPrivateIdentifier(node) ||
+      ts.isStringLiteralLike(node)
+    ) {
       const sym = this.getTSSymbolAtLocation(node)
       if (sym) {
         this.visitSymbolOccurrence(node, sym)