From e9a74bcb807702fad39ee051821286f331a7ac10 Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Mon, 11 Dec 2023 19:00:36 +0800
Subject: [PATCH] Remove `TSPropertySignature.initializer` (#16154)

Co-authored-by: Babel Bot <30521560+liuxingbaoyu@users.noreply.github.com>
---
 packages/babel-generator/src/generators/typescript.ts     | 8 +-------
 packages/babel-parser/src/types.d.ts                      | 1 -
 .../typescript/interface/property-initializer/input.ts    | 1 +
 .../interface/property-initializer/options.json           | 3 +++
 packages/babel-types/src/ast-types/generated/index.ts     | 1 -
 packages/babel-types/src/builders/generated/index.ts      | 2 --
 packages/babel-types/src/definitions/typescript.ts        | 3 +--
 7 files changed, 6 insertions(+), 13 deletions(-)
 create mode 100644 packages/babel-parser/test/fixtures/typescript/interface/property-initializer/input.ts
 create mode 100644 packages/babel-parser/test/fixtures/typescript/interface/property-initializer/options.json

diff --git a/packages/babel-generator/src/generators/typescript.ts b/packages/babel-generator/src/generators/typescript.ts
index 8912fc6bdfa1..34bfc5b914e3 100644
--- a/packages/babel-generator/src/generators/typescript.ts
+++ b/packages/babel-generator/src/generators/typescript.ts
@@ -120,19 +120,13 @@ export function TSPropertySignature(
   this: Printer,
   node: t.TSPropertySignature,
 ) {
-  const { readonly, initializer } = node;
+  const { readonly } = node;
   if (readonly) {
     this.word("readonly");
     this.space();
   }
   this.tsPrintPropertyOrMethodName(node);
   this.print(node.typeAnnotation, node);
-  if (initializer) {
-    this.space();
-    this.token("=");
-    this.space();
-    this.print(initializer, node);
-  }
   this.token(";");
 }
 
diff --git a/packages/babel-parser/src/types.d.ts b/packages/babel-parser/src/types.d.ts
index 723ae3969235..1036be41f32c 100644
--- a/packages/babel-parser/src/types.d.ts
+++ b/packages/babel-parser/src/types.d.ts
@@ -1345,7 +1345,6 @@ export interface TsPropertySignature extends TsNamedTypeElementBase {
   type: "TSPropertySignature";
   readonly?: true;
   typeAnnotation?: TsTypeAnnotation;
-  initializer?: Expression;
 }
 
 export interface TsMethodSignature
diff --git a/packages/babel-parser/test/fixtures/typescript/interface/property-initializer/input.ts b/packages/babel-parser/test/fixtures/typescript/interface/property-initializer/input.ts
new file mode 100644
index 000000000000..2eb4e8289965
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/typescript/interface/property-initializer/input.ts
@@ -0,0 +1 @@
+interface I { x: number = 1;}
diff --git a/packages/babel-parser/test/fixtures/typescript/interface/property-initializer/options.json b/packages/babel-parser/test/fixtures/typescript/interface/property-initializer/options.json
new file mode 100644
index 000000000000..b8eb9b69007d
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/typescript/interface/property-initializer/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Unexpected token, expected \";\" (1:24)"
+}
diff --git a/packages/babel-types/src/ast-types/generated/index.ts b/packages/babel-types/src/ast-types/generated/index.ts
index 700c0f32665c..a5deb85e6474 100644
--- a/packages/babel-types/src/ast-types/generated/index.ts
+++ b/packages/babel-types/src/ast-types/generated/index.ts
@@ -1742,7 +1742,6 @@ export interface TSPropertySignature extends BaseNode {
   type: "TSPropertySignature";
   key: Expression;
   typeAnnotation?: TSTypeAnnotation | null;
-  initializer?: Expression | null;
   computed?: boolean;
   kind: "get" | "set";
   optional?: boolean | null;
diff --git a/packages/babel-types/src/builders/generated/index.ts b/packages/babel-types/src/builders/generated/index.ts
index 77b8957b0c83..05c4f0d6a268 100644
--- a/packages/babel-types/src/builders/generated/index.ts
+++ b/packages/babel-types/src/builders/generated/index.ts
@@ -1968,13 +1968,11 @@ export { tsConstructSignatureDeclaration as tSConstructSignatureDeclaration };
 export function tsPropertySignature(
   key: t.Expression,
   typeAnnotation: t.TSTypeAnnotation | null = null,
-  initializer: t.Expression | null = null,
 ): t.TSPropertySignature {
   return validateNode<t.TSPropertySignature>({
     type: "TSPropertySignature",
     key,
     typeAnnotation,
-    initializer,
     kind: null,
   });
 }
diff --git a/packages/babel-types/src/definitions/typescript.ts b/packages/babel-types/src/definitions/typescript.ts
index 12ba6819719d..913fedb7e2d5 100644
--- a/packages/babel-types/src/definitions/typescript.ts
+++ b/packages/babel-types/src/definitions/typescript.ts
@@ -127,12 +127,11 @@ const namedTypeElementCommon = () => ({
 
 defineType("TSPropertySignature", {
   aliases: ["TSTypeElement"],
-  visitor: ["key", "typeAnnotation", "initializer"],
+  visitor: ["key", "typeAnnotation"],
   fields: {
     ...namedTypeElementCommon(),
     readonly: validateOptional(bool),
     typeAnnotation: validateOptionalType("TSTypeAnnotation"),
-    initializer: validateOptionalType("Expression"),
     kind: {
       validate: assertOneOf("get", "set"),
     },