babel-generator: Add TypeScript support (#5896)

* babel-generator: Add TypeScript support

* Remove type declarations; not published from babylon

* Remove TODOs

* Consistently use `this.word` for tokens that are words

packages/babel-generator/src/generators/classes.js

@@ -8,6 +8,16 @@ export function ClassDeclaration(node: Object, parent: Object) {
     this.printJoin(node.decorators, node);
   }
 
+  if (node.declare) {
+    this.word("declare");
+    this.space();
+  }
+
+  if (node.abstract) {
+    this.word("abstract");
+    this.space();
+  }
+
   this.word("class");
 
   if (node.id) {
@@ -59,10 +69,22 @@ export function ClassBody(node: Object) {
 export function ClassProperty(node: Object) {
   this.printJoin(node.decorators, node);
 
+  if (node.accessibility) {
+    this.word(node.accessibility);
+    this.space();
+  }
   if (node.static) {
     this.word("static");
     this.space();
   }
+  if (node.abstract) {
+    this.word("abstract");
+    this.space();
+  }
+  if (node.readonly) {
+    this.word("readonly");
+    this.space();
+  }
   if (node.computed) {
     this.token("[");
     this.print(node.key, node);
@@ -71,6 +93,11 @@ export function ClassProperty(node: Object) {
     this._variance(node);
     this.print(node.key, node);
   }
+
+  if (node.optional) {
+    this.token("?");
+  }
+
   this.print(node.typeAnnotation, node);
   if (node.value) {
     this.space();
@@ -82,12 +109,28 @@ export function ClassProperty(node: Object) {
 }
 
 export function ClassMethod(node: Object) {
+  this._classMethodHead(node);
+  this.space();
+  this.print(node.body, node);
+}
+
+export function _classMethodHead(node) {
   this.printJoin(node.decorators, node);
 
+  if (node.accessibility) {
+    this.word(node.accessibility);
+    this.space();
+  }
+
+  if (node.abstract) {
+    this.word("abstract");
+    this.space();
+  }
+
   if (node.static) {
     this.word("static");
     this.space();
   }
 
-  this._method(node);
+  this._methodHead(node);
 }

packages/babel-generator/src/generators/expressions.js

@@ -65,6 +65,8 @@ export function NewExpression(node: Object, parent: Object) {
     return;
   }
 
+  this.print(node.typeParameters, node);
+
   if (node.optional) {
     this.token("?.");
   }
@@ -94,6 +96,8 @@ export function Decorator(node: Object) {
 export function CallExpression(node: Object) {
   this.print(node.callee, node);
 
+  this.print(node.typeParameters, node);
+
   if (node.optional) {
     this.token("?.");
   }

packages/babel-generator/src/generators/flow.js

@@ -303,38 +303,6 @@ export function TypeAlias(node: Object) {
   this.semicolon();
 }
 
-export function TypeAnnotation(node: Object) {
-  this.token(":");
-  this.space();
-  if (node.optional) this.token("?");
-  this.print(node.typeAnnotation, node);
-}
-
-export function TypeParameter(node: Object) {
-  this._variance(node);
-
-  this.word(node.name);
-
-  if (node.bound) {
-    this.print(node.bound, node);
-  }
-
-  if (node.default) {
-    this.space();
-    this.token("=");
-    this.space();
-    this.print(node.default, node);
-  }
-}
-
-export function TypeParameterInstantiation(node: Object) {
-  this.token("<");
-  this.printList(node.params, node, {});
-  this.token(">");
-}
-
-export { TypeParameterInstantiation as TypeParameterDeclaration };
-
 export function ObjectTypeAnnotation(node: Object) {
   if (node.exact) {
     this.token("{|");

packages/babel-generator/src/generators/index.js

@@ -8,3 +8,5 @@ export * from "./types";
 export * from "./flow";
 export * from "./base";
 export * from "./jsx";
+export * from "./tsFlowCommon";
+export * from "./typescript";

packages/babel-generator/src/generators/methods.js

@@ -3,20 +3,31 @@ import * as t from "babel-types";
 export function _params(node: Object) {
   this.print(node.typeParameters, node);
   this.token("(");
-  this.printList(node.params, node, {
-    iterator: node => {
-      if (node.optional) this.token("?");
-      this.print(node.typeAnnotation, node);
-    },
-  });
+  this._parameters(node.params, node);
   this.token(")");
 
-  if (node.returnType) {
-    this.print(node.returnType, node);
+  this.print(node.returnType, node);
+}
+
+export function _parameters(parameters, parent) {
+  for (let i = 0; i < parameters.length; i++) {
+    this._param(parameters[i], parent);
+
+    if (i < parameters.length - 1) {
+      this.token(",");
+      this.space();
+    }
   }
 }
 
-export function _method(node: Object) {
+export function _param(parameter, parent) {
+  this.printJoin(parameter.decorators, parameter);
+  this.print(parameter, parent);
+  if (parameter.optional) this.token("?");
+  this.print(parameter.typeAnnotation, parameter);
+}
+
+export function _methodHead(node: Object) {
   const kind = node.kind;
   const key = node.key;
 
@@ -44,9 +55,11 @@ export function _method(node: Object) {
     this.print(key, node);
   }
 
+  if (node.optional) {
+    this.token("?");
+  }
+
   this._params(node);
-  this.space();
-  this.print(node.body, node);
 }
 
 export function _predicate(node: Object) {
@@ -59,7 +72,7 @@ export function _predicate(node: Object) {
   }
 }
 
-export function FunctionExpression(node: Object) {
+export function _functionHead(node: Object) {
   if (node.async) {
     this.word("async");
     this.space();
@@ -67,16 +80,17 @@ export function FunctionExpression(node: Object) {
   this.word("function");
   if (node.generator) this.token("*");
 
+  this.space();
   if (node.id) {
-    this.space();
     this.print(node.id, node);
-  } else {
-    this.space();
   }
 
   this._params(node);
   this._predicate(node);
+}
 
+export function FunctionExpression(node: Object) {
+  this._functionHead(node);
   this.space();
   this.print(node.body, node);
 }

packages/babel-generator/src/generators/statements.js

@@ -236,6 +236,11 @@ function constDeclarationIndent() {
 }
 
 export function VariableDeclaration(node: Object, parent: Object) {
+  if (node.declare) {
+    this.word("declare");
+    this.space();
+  }
+
   this.word(node.kind);
   this.space();
 

packages/babel-generator/src/generators/tsFlowCommon.js

@@ -0,0 +1,38 @@
+export function TypeAnnotation(node) {
+  this.token(":");
+  this.space();
+  if (node.optional) this.token("?");
+  this.print(node.typeAnnotation, node);
+}
+
+export function TypeParameterInstantiation(node): void {
+  this.token("<");
+  this.printList(node.params, node, {});
+  this.token(">");
+}
+
+export { TypeParameterInstantiation as TypeParameterDeclaration };
+
+export function TypeParameter(node) {
+  this._variance(node);
+
+  this.word(node.name);
+
+  if (node.bound) {
+    this.print(node.bound, node);
+  }
+
+  if (node.constraint) {
+    this.space();
+    this.word("extends");
+    this.space();
+    this.print(node.constraint, node);
+  }
+
+  if (node.default) {
+    this.space();
+    this.token("=");
+    this.space();
+    this.print(node.default, node);
+  }
+}

packages/babel-generator/src/generators/types.js

@@ -31,7 +31,9 @@ export { ObjectExpression as ObjectPattern };
 
 export function ObjectMethod(node: Object) {
   this.printJoin(node.decorators, node);
-  this._method(node);
+  this._methodHead(node);
+  this.space();
+  this.print(node.body, node);
 }
 
 export function ObjectProperty(node: Object) {

packages/babel-generator/src/generators/typescript.js

@@ -0,0 +1,456 @@
+export function TSParameterProperty(node) {
+  if (node.accessibility) {
+    this.word(node.accessibility);
+    this.space();
+  }
+
+  if (node.readonly) {
+    this.word("readonly");
+    this.space();
+  }
+
+  this._param(node.parameter);
+}
+
+export function TSDeclareFunction(node) {
+  if (node.declare) {
+    this.word("declare");
+    this.space();
+  }
+  this._functionHead(node);
+  this.token(";");
+}
+
+export function TSDeclareMethod(node) {
+  this._classMethodHead(node);
+  this.token(";");
+}
+
+export function TSQualifiedName(node) {
+  this.print(node.left, node);
+  this.token(".");
+  this.print(node.right, node);
+}
+
+export function TSCallSignatureDeclaration(node) {
+  this.tsPrintSignatureDeclarationBase(node);
+}
+
+export function TSConstructSignatureDeclaration(node) {
+  this.word("new");
+  this.space();
+  this.tsPrintSignatureDeclarationBase(node);
+}
+
+export function TSPropertySignature(node) {
+  const { readonly, initializer } = 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(";");
+}
+
+export function tsPrintPropertyOrMethodName(node) {
+  if (node.computed) {
+    this.token("[");
+  }
+  this.print(node.key, node);
+  if (node.computed) {
+    this.token("]");
+  }
+  if (node.optional) {
+    this.token("?");
+  }
+}
+
+export function TSMethodSignature(node) {
+  this.tsPrintPropertyOrMethodName(node);
+  this.tsPrintSignatureDeclarationBase(node);
+  this.token(";");
+}
+
+export function TSIndexSignature(node) {
+  const { readonly } = node;
+  if (readonly) {
+    this.word("readonly");
+    this.space();
+  }
+  this.token("[");
+  this._parameters(node.parameters, node);
+  this.token("]");
+  this.print(node.typeAnnotation, node);
+  this.token(";");
+}
+
+export function TSAnyKeyword() {
+  this.word("any");
+}
+export function TSNumberKeyword() {
+  this.word("number");
+}
+export function TSObjectKeyword() {
+  this.word("object");
+}
+export function TSBooleanKeyword() {
+  this.word("boolean");
+}
+export function TSStringKeyword() {
+  this.word("string");
+}
+export function TSSymbolKeyword() {
+  this.word("symbol");
+}
+export function TSVoidKeyword() {
+  this.word("void");
+}
+export function TSUndefinedKeyword() {
+  this.word("undefined");
+}
+export function TSNullKeyword() {
+  this.word("null");
+}
+export function TSNeverKeyword() {
+  this.word("never");
+}
+
+export function TSThisType() {
+  this.word("this");
+}
+
+export function TSFunctionType(node) {
+  this.tsPrintFunctionOrConstructorType(node);
+}
+
+export function TSConstructorType(node) {
+  this.word("new");
+  this.space();
+  this.tsPrintFunctionOrConstructorType(node);
+}
+
+export function tsPrintFunctionOrConstructorType(
+  node: FunctionOrConstructorType,
+) {
+  const { typeParameters, parameters } = node;
+  this.print(typeParameters, node);
+  this.token("(");
+  this._parameters(parameters, node);
+  this.token(")");
+  this.space();
+  this.token("=>");
+  this.space();
+  this.print(node.typeAnnotation.typeAnnotation, node);
+}
+
+export function TSTypeReference(node) {
+  this.print(node.typeName, node);
+  this.print(node.typeParameters, node);
+}
+
+export function TSTypePredicate(node) {
+  this.print(node.parameterName);
+  this.space();
+  this.word("is");
+  this.space();
+  this.print(node.typeAnnotation.typeAnnotation);
+}
+
+export function TSTypeQuery(node) {
+  this.word("typeof");
+  this.space();
+  this.print(node.exprName);
+}
+
+export function TSTypeLiteral(node) {
+  this.tsPrintTypeLiteralOrInterfaceBody(node.members, node);
+}
+
+export function tsPrintTypeLiteralOrInterfaceBody(members, node) {
+  this.tsPrintBraced(members, node);
+}
+
+export function tsPrintBraced(members, node) {
+  this.token("{");
+  if (members.length) {
+    this.indent();
+    this.newline();
+    for (const member of members) {
+      this.print(member, node);
+      //this.token(sep);
+      this.newline();
+    }
+    this.dedent();
+    this.rightBrace();
+  } else {
+    this.token("}");
+  }
+}
+
+export function TSArrayType(node) {
+  this.print(node.elementType);
+  this.token("[]");
+}
+
+export function TSTupleType(node) {
+  this.token("[");
+  this.printList(node.elementTypes, node);
+  this.token("]");
+}
+
+export function TSUnionType(node) {
+  this.tsPrintUnionOrIntersectionType(node, "|");
+}
+
+export function TSIntersectionType(node) {
+  this.tsPrintUnionOrIntersectionType(node, "&");
+}
+
+export function tsPrintUnionOrIntersectionType(node, sep) {
+  this.printJoin(node.types, node, {
+    separator() {
+      this.space();
+      this.token(sep);
+      this.space();
+    },
+  });
+}
+
+export function TSParenthesizedType(node) {
+  this.token("(");
+  this.print(node.typeAnnotation, node);
+  this.token(")");
+}
+
+export function TSTypeOperator(node) {
+  this.token(node.operator);
+  this.space();
+  this.print(node.typeAnnotation, node);
+}
+
+export function TSIndexedAccessType(node) {
+  this.print(node.objectType, node);
+  this.token("[");
+  this.print(node.indexType, node);
+  this.token("]");
+}
+
+export function TSMappedType(node) {
+  const { readonly, typeParameter, optional } = node;
+  this.token("{");
+  this.space();
+  if (readonly) {
+    this.word("readonly");
+    this.space();
+  }
+
+  this.token("[");
+  this.word(typeParameter.name);
+  this.space();
+  this.word("in");
+  this.space();
+  this.print(typeParameter.constraint, typeParameter);
+  this.token("]");
+
+  if (optional) {
+    this.token("?");
+  }
+  this.token(":");
+  this.space();
+  this.print(node.typeAnnotation, node);
+  this.space();
+  this.token("}");
+}
+
+export function TSLiteralType(node) {
+  this.print(node.literal, node);
+}
+
+export function TSExpressionWithTypeArguments(node) {
+  this.print(node.expression, node);
+  this.print(node.typeParameters, node);
+}
+
+export function TSInterfaceDeclaration(node) {
+  const { declare, id, typeParameters, extends: extendz, body } = node;
+  if (declare) {
+    this.word("declare");
+    this.space();
+  }
+  this.word("interface");
+  this.space();
+  this.print(id, node);
+  this.print(typeParameters, node);
+  if (extendz) {
+    this.space();
+    this.word("extends");
+    this.space();
+    this.printList(extendz, node);
+  }
+  this.space();
+  this.print(body, node);
+}
+
+export function TSInterfaceBody(node) {
+  this.tsPrintTypeLiteralOrInterfaceBody(node.body, node);
+}
+
+export function TSTypeAliasDeclaration(node) {
+  const { declare, id, typeParameters, typeAnnotation } = node;
+  if (declare) {
+    this.word("declare");
+    this.space();
+  }
+  this.word("type");
+  this.space();
+  this.print(id, node);
+  this.print(typeParameters, node);
+  this.space();
+  this.token("=");
+  this.space();
+  this.print(typeAnnotation, node);
+  this.token(";");
+}
+
+export function TSAsExpression(node) {
+  const { expression, typeAnnotation } = node;
+  this.print(expression, node);
+  this.space();
+  this.word("as");
+  this.space();
+  this.print(typeAnnotation, node);
+}
+
+export function TSTypeAssertion(node) {
+  const { typeAnnotation, expression } = node;
+  this.token("<");
+  this.print(typeAnnotation, node);
+  this.token(">");
+  this.space();
+  this.print(expression, node);
+}
+
+export function TSEnumDeclaration(node) {
+  const { declare, const: isConst, id, members } = node;
+  if (declare) {
+    this.word("declare");
+    this.space();
+  }
+  if (isConst) {
+    this.word("const");
+    this.space();
+  }
+  this.word("enum");
+  this.space();
+  this.print(id, node);
+  this.space();
+  this.tsPrintBraced(members, node);
+}
+
+export function TSEnumMember(node) {
+  const { id, initializer } = node;
+  this.print(id, node);
+  if (initializer) {
+    this.space();
+    this.token("=");
+    this.space();
+    this.print(initializer, node);
+  }
+  this.token(",");
+}
+
+export function TSModuleDeclaration(node) {
+  const { declare, id } = node;
+
+  if (declare) {
+    this.word("declare");
+    this.space();
+  }
+
+  if (!node.global) {
+    this.word(id.type === "Identifier" ? "namespace" : "module");
+    this.space();
+  }
+  this.print(id, node);
+
+  if (!node.body) {
+    this.token(";");
+    return;
+  }
+
+  let body = node.body;
+  while (body.type === "TSModuleDeclaration") {
+    this.token(".");
+    this.print(body.id, body);
+    body = body.body;
+  }
+
+  this.space();
+  this.print(body, node);
+}
+
+export function TSModuleBlock(node) {
+  this.tsPrintBraced(node.body, node);
+}
+
+export function TSImportEqualsDeclaration(node) {
+  const { isExport, id, moduleReference } = node;
+  if (isExport) {
+    this.word("export");
+    this.space();
+  }
+  this.word("import");
+  this.space();
+  this.print(id, node);
+  this.space();
+  this.token("=");
+  this.space();
+  this.print(moduleReference, node);
+  this.token(";");
+}
+
+export function TSExternalModuleReference(node) {
+  this.token("require(");
+  this.print(node.expression, node);
+  this.token(")");
+}
+
+export function TSNonNullExpression(node) {
+  this.print(node.expression, node);
+  this.token("!");
+}
+
+export function TSExportAssignment(node) {
+  this.word("export");
+  this.space();
+  this.token("=");
+  this.space();
+  this.print(node.expression, node);
+  this.token(";");
+}
+
+export function TSNamespaceExportDeclaration(node) {
+  this.word("export");
+  this.space();
+  this.word("as");
+  this.space();
+  this.word("namespace");
+  this.space();
+  this.print(node.id, node);
+}
+
+export function tsPrintSignatureDeclarationBase(node) {
+  const { typeParameters, parameters } = node;
+  this.print(typeParameters, node);
+  this.token("(");
+  this._parameters(parameters, node);
+  this.token(")");
+  this.print(node.typeAnnotation, node);
+}

packages/babel-generator/src/node/parentheses.js

@@ -93,6 +93,14 @@ export function Binary(node: Object, parent: Object): boolean {
   return false;
 }
 
+export function TSAsExpression() {
+  return true;
+}
+
+export function TSTypeAssertion() {
+  return true;
+}
+
 export function BinaryExpression(node: Object, parent: Object): boolean {
   // let i = (1 in []);
   // for ((1 in []);;);
@@ -173,7 +181,9 @@ export function ConditionalExpression(node: Object, parent: Object): boolean {
     t.isBinary(parent) ||
     t.isConditionalExpression(parent, { test: node }) ||
     t.isAwaitExpression(parent) ||
-    t.isTaggedTemplateExpression(parent)
+    t.isTaggedTemplateExpression(parent) ||
+    t.isTSTypeAssertion(parent) ||
+    t.isTSAsExpression(parent)
   ) {
     return true;
   }

packages/babel-generator/test/fixtures/typescript/arrow-function-annotated/actual.js

@@ -0,0 +1 @@
+(x: number): number => x;

packages/babel-generator/test/fixtures/typescript/arrow-function-annotated/expected.js

@@ -0,0 +1 @@
+(x: number): number => x;

packages/babel-generator/test/fixtures/typescript/arrow-function-async-generic-false-positive/actual.js

@@ -0,0 +1,2 @@
+async < 1;
+async<T>() == 0;

packages/babel-generator/test/fixtures/typescript/arrow-function-async-generic-false-positive/expected.js

@@ -0,0 +1,2 @@
+async < 1;
+async<T>() == 0;

packages/babel-generator/test/fixtures/typescript/arrow-function-async-generic/actual.js

@@ -0,0 +1 @@
+async <T>(a: T): T => a;

packages/babel-generator/test/fixtures/typescript/arrow-function-async-generic/expected.js

@@ -0,0 +1 @@
+async <T>(a: T): T => a;

packages/babel-generator/test/fixtures/typescript/arrow-function-async/actual.js

@@ -0,0 +1 @@
+async (x?: number): any => x;

packages/babel-generator/test/fixtures/typescript/arrow-function-async/expected.js

@@ -0,0 +1 @@
+async (x?: number): any => x;

packages/babel-generator/test/fixtures/typescript/arrow-function-default-parameter-values/actual.js

@@ -0,0 +1 @@
+(x: number = 0) => 0;

packages/babel-generator/test/fixtures/typescript/arrow-function-default-parameter-values/expected.js

@@ -0,0 +1 @@
+(x: number = 0) => 0;

packages/babel-generator/test/fixtures/typescript/arrow-function-destructuring/actual.js

@@ -0,0 +1 @@
+({ a = 0 }) => 0;

packages/babel-generator/test/fixtures/typescript/arrow-function-destructuring/expected.js

@@ -0,0 +1,3 @@
+({
+  a = 0
+}) => 0;

packages/babel-generator/test/fixtures/typescript/arrow-function-generic-tsx/actual.js

@@ -0,0 +1,2 @@
+// Same as `generic`. Verify that JSX doesn't change things.
+<T>(a: T): T => a;

packages/babel-generator/test/fixtures/typescript/arrow-function-generic-tsx/expected.js

@@ -0,0 +1,2 @@
+// Same as `generic`. Verify that JSX doesn't change things.
+<T>(a: T): T => a;

packages/babel-generator/test/fixtures/typescript/arrow-function-generic-tsx/options.json

@@ -0,0 +1,3 @@
+{
+    "plugins": ["jsx", "typescript"]
+}

packages/babel-generator/test/fixtures/typescript/arrow-function-generic/actual.js

@@ -0,0 +1 @@
+<T>(a: T): T => a;

packages/babel-generator/test/fixtures/typescript/arrow-function-generic/expected.js

@@ -0,0 +1 @@
+<T>(a: T): T => a;

packages/babel-generator/test/fixtures/typescript/arrow-function-optional-parameter/actual.js

@@ -0,0 +1 @@
+(x?: number): any => x;

packages/babel-generator/test/fixtures/typescript/arrow-function-optional-parameter/expected.js

@@ -0,0 +1 @@
+(x?: number): any => x;

packages/babel-generator/test/fixtures/typescript/arrow-function-predicate-types/actual.js

@@ -0,0 +1 @@
+(x: any): x is string => true;

packages/babel-generator/test/fixtures/typescript/arrow-function-predicate-types/expected.js

@@ -0,0 +1 @@
+(x: any): x is string => true;

packages/babel-generator/test/fixtures/typescript/cast-as/actual.js

@@ -0,0 +1,4 @@
+x as T;
+x < y as boolean; // (x < y) as boolean;
+x === 1 as number; // x === (1 as number);
+x as any as T;

packages/babel-generator/test/fixtures/typescript/cast-as/expected.js

@@ -0,0 +1,6 @@
+(x as T);
+(x < y as boolean); // (x < y) as boolean;
+
+x === (1 as number); // x === (1 as number);
+
+((x as any) as T);

packages/babel-generator/test/fixtures/typescript/cast-false-positive/actual.js

@@ -0,0 +1 @@
+f(x < 0, /a/);

packages/babel-generator/test/fixtures/typescript/cast-false-positive/expected.js

@@ -0,0 +1 @@
+f(x < 0, /a/);

packages/babel-generator/test/fixtures/typescript/cast-need-parentheses/actual.js

@@ -0,0 +1,3 @@
+(<T> x).y;
+(x as T).y;
+x!.y;

packages/babel-generator/test/fixtures/typescript/cast-need-parentheses/expected.js

@@ -0,0 +1,3 @@
+(<T> x).y;
+(x as T).y;
+x!.y;

packages/babel-generator/test/fixtures/typescript/cast-null-assertion-then-property-access/actual.js

@@ -0,0 +1 @@
+x!.y;

packages/babel-generator/test/fixtures/typescript/cast-null-assertion-then-property-access/expected.js

@@ -0,0 +1 @@
+x!.y;

packages/babel-generator/test/fixtures/typescript/cast-null-assertion/actual.js

@@ -0,0 +1 @@
+x!;

packages/babel-generator/test/fixtures/typescript/cast-null-assertion/expected.js

@@ -0,0 +1 @@
+x!;

packages/babel-generator/test/fixtures/typescript/cast-type-assertion-after-operator/actual.js

@@ -0,0 +1 @@
+1 + <number> 1;

packages/babel-generator/test/fixtures/typescript/cast-type-assertion-after-operator/expected.js

@@ -0,0 +1 @@
+1 + (<number> 1);

packages/babel-generator/test/fixtures/typescript/cast-type-assertion-before-operator/actual.js

@@ -0,0 +1 @@
+<number> 1 + 1;

packages/babel-generator/test/fixtures/typescript/cast-type-assertion-before-operator/expected.js

@@ -0,0 +1 @@
+(<number> 1) + 1;

packages/babel-generator/test/fixtures/typescript/cast-type-assertion/actual.js

@@ -0,0 +1 @@
+<number> 1;

packages/babel-generator/test/fixtures/typescript/cast-type-assertion/expected.js

@@ -0,0 +1 @@
+(<number> 1);

packages/babel-generator/test/fixtures/typescript/class-abstract/actual.js

@@ -0,0 +1,6 @@
+abstract class C {}
+declare abstract class C {}
+export abstract class C {}
+// `export abstract class { }` is not valid.
+// `export default abstract class C { }` is not valid.
+// `abstract class` is not valid as an expression.

packages/babel-generator/test/fixtures/typescript/class-abstract/expected.js

@@ -0,0 +1,7 @@
+abstract class C {}
+
+declare abstract class C {}
+
+export abstract class C {} // `export abstract class { }` is not valid.
+// `export default abstract class C { }` is not valid.
+// `abstract class` is not valid as an expression.

packages/babel-generator/test/fixtures/typescript/class-constructor/actual.js

@@ -0,0 +1,5 @@
+class C {
+    constructor(x: number, y: number);
+    constructor(x: string, y: string);
+    constructor(x: any, y: any) {}
+}

packages/babel-generator/test/fixtures/typescript/class-constructor/expected.js

@@ -0,0 +1,7 @@
+class C {
+  constructor(x: number, y: number);
+  constructor(x: string, y: string);
+
+  constructor(x: any, y: any) {}
+
+}

packages/babel-generator/test/fixtures/typescript/class-declare/actual.js

@@ -0,0 +1,7 @@
+declare class C {
+    [x: string]: any;
+    x;
+    x: number;
+    f();
+    f(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-declare/expected.js

@@ -0,0 +1,7 @@
+declare class C {
+  [x: string]: any;
+  x;
+  x: number;
+  f();
+  f(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-expression-extends-implements/actual.js

@@ -0,0 +1,2 @@
+(class extends f()<T> implements X.Y<T> {});
+(class C extends f()<T> implements X.Y<T> {});

packages/babel-generator/test/fixtures/typescript/class-expression-extends-implements/expected.js

@@ -0,0 +1,3 @@
+(class extends f()<T> implements X.Y<T> {});
+
+(class C extends f()<T> implements X.Y<T> {});

packages/babel-generator/test/fixtures/typescript/class-expression-extends/actual.js

@@ -0,0 +1,2 @@
+(class extends f()<T> {});
+(class C extends f()<T> {});

packages/babel-generator/test/fixtures/typescript/class-expression-extends/expected.js

@@ -0,0 +1,3 @@
+(class extends f()<T> {});
+
+(class C extends f()<T> {});

packages/babel-generator/test/fixtures/typescript/class-expression-generic/actual.js

@@ -0,0 +1,2 @@
+(class<T> {});
+(class C<T> {});

packages/babel-generator/test/fixtures/typescript/class-expression-generic/expected.js

@@ -0,0 +1,3 @@
+(class<T> {});
+
+(class C<T> {});

packages/babel-generator/test/fixtures/typescript/class-expression-implements/actual.js

@@ -0,0 +1,2 @@
+(class implements X.Y<T> {});
+(class C implements X.Y<T> {});

packages/babel-generator/test/fixtures/typescript/class-expression-implements/expected.js

@@ -0,0 +1,3 @@
+(class implements X.Y<T> {});
+
+(class C implements X.Y<T> {});

packages/babel-generator/test/fixtures/typescript/class-extends-implements/actual.js

@@ -0,0 +1 @@
+class C extends f()<T> implements X.Y<T> {}

packages/babel-generator/test/fixtures/typescript/class-extends-implements/expected.js

@@ -0,0 +1 @@
+class C extends f()<T> implements X.Y<T> {}

packages/babel-generator/test/fixtures/typescript/class-extends/actual.js

@@ -0,0 +1 @@
+class C extends f()<T> {}

packages/babel-generator/test/fixtures/typescript/class-extends/expected.js

@@ -0,0 +1 @@
+class C extends f()<T> {}

packages/babel-generator/test/fixtures/typescript/class-generic/actual.js

@@ -0,0 +1 @@
+class C<T extends object = { x: number }> {}

packages/babel-generator/test/fixtures/typescript/class-generic/expected.js

@@ -0,0 +1,3 @@
+class C<T extends object = {
+  x: number;
+}> {}

packages/babel-generator/test/fixtures/typescript/class-get-generic/actual.js

@@ -0,0 +1,3 @@
+declare class C {
+    get<T>(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-get-generic/expected.js

@@ -0,0 +1,3 @@
+declare class C {
+  get<T>(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-implements/actual.js

@@ -0,0 +1 @@
+class C implements X.Y<T> {}

packages/babel-generator/test/fixtures/typescript/class-implements/expected.js

@@ -0,0 +1 @@
+class C implements X.Y<T> {}

packages/babel-generator/test/fixtures/typescript/class-index-signature/actual.js

@@ -0,0 +1,4 @@
+class C {
+    [x: string]: any;
+    readonly [x: string]: any;
+}

packages/babel-generator/test/fixtures/typescript/class-index-signature/expected.js

@@ -0,0 +1,4 @@
+class C {
+  [x: string]: any;
+  readonly [x: string]: any;
+}

packages/babel-generator/test/fixtures/typescript/class-members-with-modifier-names/actual.js

@@ -0,0 +1,6 @@
+class C {
+    public(): void;
+    public static(): void;
+    readonly = 0;
+    async<T>(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-members-with-modifier-names/expected.js

@@ -0,0 +1,6 @@
+class C {
+  public(): void;
+  public static(): void;
+  readonly = 0;
+  async<T>(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-members-with-reserved-names/actual.js

@@ -0,0 +1,3 @@
+class C {
+    public delete(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-members-with-reserved-names/expected.js

@@ -0,0 +1,3 @@
+class C {
+  public delete(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-method-computed/actual.js

@@ -0,0 +1,4 @@
+class C {
+    [Symbol.iterator](): void;
+    [Symbol.iterator]?(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-method-computed/expected.js

@@ -0,0 +1,4 @@
+class C {
+  [Symbol.iterator](): void;
+  [Symbol.iterator]?(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-method-generic/actual.js

@@ -0,0 +1,4 @@
+class C {
+    f<T>(a: T, b?: T, ...c: T[]): T {}
+    [Symbol.iterator]<T>(): T {}
+}

packages/babel-generator/test/fixtures/typescript/class-method-generic/expected.js

@@ -0,0 +1,6 @@
+class C {
+  f<T>(a: T, b?: T, ...c: T[]): T {}
+
+  [Symbol.iterator]<T>(): T {}
+
+}

packages/babel-generator/test/fixtures/typescript/class-method-no-body/actual.js

@@ -0,0 +1,4 @@
+class C {
+    f();
+    f(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-method-no-body/expected.js

@@ -0,0 +1,4 @@
+class C {
+  f();
+  f(): void;
+}

packages/babel-generator/test/fixtures/typescript/class-method-optional/actual.js

@@ -0,0 +1,3 @@
+class C {
+    m?(): void {}
+}

packages/babel-generator/test/fixtures/typescript/class-method-optional/expected.js

@@ -0,0 +1,4 @@
+class C {
+  m?(): void {}
+
+}

packages/babel-generator/test/fixtures/typescript/class-method-return-type/actual.js

@@ -0,0 +1,3 @@
+class C {
+    f(): void {}
+}

packages/babel-generator/test/fixtures/typescript/class-method-return-type/expected.js

@@ -0,0 +1,4 @@
+class C {
+  f(): void {}
+
+}

packages/babel-generator/test/fixtures/typescript/class-method-with-newline-with-body/actual.js

@@ -0,0 +1,6 @@
+class C
+{
+    m()
+    {
+    }
+}

packages/babel-generator/test/fixtures/typescript/class-method-with-newline-with-body/expected.js

@@ -0,0 +1,4 @@
+class C {
+  m() {}
+
+}

packages/babel-generator/test/fixtures/typescript/class-method-with-newline-without-body/actual.js

@@ -0,0 +1,5 @@
+class C
+{
+    m()
+    n()
+}

packages/babel-generator/test/fixtures/typescript/class-method-with-newline-without-body/expected.js

@@ -0,0 +1,4 @@
+class C {
+  m();
+  n();
+}

packages/babel-generator/test/fixtures/typescript/class-modifiers-accessors/actual.js

@@ -0,0 +1,11 @@
+// Copy of modifiers-methods with 'get'
+abstract class C {
+    abstract get a();
+    static get s() { return 0; }
+    public abstract get pua();
+    public static get pus() { return 0; }
+
+    public get pu() { return 0; }
+    protected get po() { return 0; }
+    private get pi() { return 0; }
+}

packages/babel-generator/test/fixtures/typescript/class-modifiers-accessors/expected.js

@@ -0,0 +1,27 @@
+// Copy of modifiers-methods with 'get'
+abstract class C {
+  abstract get a();
+
+  static get s() {
+    return 0;
+  }
+
+  public abstract get pua();
+
+  public static get pus() {
+    return 0;
+  }
+
+  public get pu() {
+    return 0;
+  }
+
+  protected get po() {
+    return 0;
+  }
+
+  private get pi() {
+    return 0;
+  }
+
+}

packages/babel-generator/test/fixtures/typescript/class-modifiers-methods-async/actual.js

@@ -0,0 +1,11 @@
+// Copy of modifiers-methods with 'async'
+abstract class C {
+    abstract async a();
+    static async s() {}
+    public abstract async pua();
+    public static async pus() {}
+
+    public async pu() {}
+    protected async po() {}
+    private async pi() {}
+}

packages/babel-generator/test/fixtures/typescript/class-modifiers-methods-async/expected.js

@@ -0,0 +1,17 @@
+// Copy of modifiers-methods with 'async'
+abstract class C {
+  abstract async a();
+
+  static async s() {}
+
+  public abstract async pua();
+
+  public static async pus() {}
+
+  public async pu() {}
+
+  protected async po() {}
+
+  private async pi() {}
+
+}

packages/babel-generator/test/fixtures/typescript/class-modifiers-properties/actual.js

@@ -0,0 +1,21 @@
+abstract class C {
+    readonly r;
+    readonly r2?: number;
+    abstract a;
+    static s;
+
+    public pu;
+    protected po;
+    private pi;
+
+    readonly abstract ra;
+    abstract readonly ar;
+    static readonly sr;
+
+    public readonly pur;
+    public abstract pua;
+    public static pus;
+    public readonly abstract pura;
+    public abstract readonly puar;
+    public static readonly pusr;
+}

packages/babel-generator/test/fixtures/typescript/class-modifiers-properties/expected.js

@@ -0,0 +1,18 @@
+abstract class C {
+  readonly r;
+  readonly r2?: number;
+  abstract a;
+  static s;
+  public pu;
+  protected po;
+  private pi;
+  abstract readonly ra;
+  abstract readonly ar;
+  static readonly sr;
+  public readonly pur;
+  public abstract pua;
+  public static pus;
+  public abstract readonly pura;
+  public abstract readonly puar;
+  public static readonly pusr;
+}

packages/babel-generator/test/fixtures/typescript/class-parameter-properties-with-decorators/actual.js

@@ -0,0 +1,3 @@
+class C {
+    constructor(@foo readonly x: number) {}
+}

packages/babel-generator/test/fixtures/typescript/class-parameter-properties-with-decorators/expected.js

@@ -0,0 +1,5 @@
+class C {
+  constructor(@foo
+  readonly x: number) {}
+
+}

packages/babel-generator/test/fixtures/typescript/class-parameter-properties-with-decorators/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["typescript", "decorators"]
+}