Add yuku-ts to error tests (#19852)

tests/format/typescript/_errors_/abstract-accessor-with-implementation/__snapshots__/format.test.js.snap

@@ -26,6 +26,14 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: An abstract accessor cannot have an implementation."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"An abstract accessor cannot have an implementation (2:25)
+  1 | abstract class Foo  {
+> 2 |   abstract get getter() { }
+    |                         ^^^
+  3 | }"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Method 'setter' cannot have an implementation because it is marked abstract. (2:3)
   1 | abstract class Foo  {
@@ -51,3 +59,11 @@ exports[`snippet: #1 format[typescript] 1`] = `
   3 | }
 Cause: An abstract accessor cannot have an implementation."
 `;
+
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"An abstract accessor cannot have an implementation (2:26)
+  1 | abstract class Foo  {
+> 2 |   abstract set setter(v) { }
+    |                          ^^^
+  3 | }"
+`;

tests/format/typescript/_errors_/abstract-accessor-with-implementation/format.test.js

@@ -16,5 +16,5 @@ runFormatTest(
       `,
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/abstract-method-with-implementation/__snapshots__/format.test.js.snap

@@ -25,3 +25,11 @@ exports[`snippet: #0 format[typescript] 1`] = `
   3 | }
 Cause: Method 'method' cannot have an implementation because it is marked abstract."
 `;
+
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"An abstract method cannot have an implementation (2:21)
+  1 | abstract class Foo  {
+> 2 |   abstract method() { }
+    |                     ^^^
+  3 | }"
+`;

tests/format/typescript/_errors_/abstract-method-with-implementation/format.test.js

@@ -11,5 +11,5 @@ runFormatTest(
       `,
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/arrow/__snapshots__/format.test.js.snap

@@ -25,3 +25,11 @@ exports[`newline-before-arrow.ts format[typescript] 1`] = `
   3 |
 Cause: Unexpected keyword or identifier."
 `;
+
+exports[`newline-before-arrow.ts format[yuku-ts] 1`] = `
+"Expected a semicolon or an implicit semicolon after a statement, but found 'x' (1:7)
+> 1 | async x
+    |       ^
+  2 | => x
+  3 |"
+`;

tests/format/typescript/_errors_/arrow/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);

tests/format/typescript/_errors_/catch-clause-with-initializer/__snapshots__/format.test.js.snap

@@ -31,3 +31,13 @@ exports[`catch-clause-with-initializer.ts format[typescript] 1`] = `
   5 |
 Cause: Catch clause variable cannot have an initializer."
 `;
+
+exports[`catch-clause-with-initializer.ts format[yuku-ts] 1`] = `
+"Expected ')' after catch parameter, but found '=' (3:10)
+  1 | try {
+  2 | }
+> 3 | catch (e = 1) {
+    |          ^
+  4 | }
+  5 |"
+`;

tests/format/typescript/_errors_/catch-clause-with-initializer/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);

tests/format/typescript/_errors_/class-property-named-constructor/__snapshots__/format.test.js.snap

@@ -26,6 +26,14 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: '(' expected."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | abstract class Foo {
+  2 |   constructor
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Classes may not have a field named 'constructor'. (2:3)
   1 | abstract class Foo {
@@ -52,6 +60,14 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: Classes may not have a field named 'constructor'."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | abstract class Foo {
+  2 |   'constructor'
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "Classes may not have a field named 'constructor'. (2:3)
   1 | abstract class Foo {
@@ -78,6 +94,14 @@ exports[`snippet: #2 format[typescript] 1`] = `
 Cause: Classes may not have a field named 'constructor'."
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | abstract class Foo {
+  2 |   'constructor'
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #3 format[babel-ts] 1`] = `
 "Classes may not have a field named 'constructor'. (2:12)
   1 | abstract class Foo {
@@ -104,6 +128,14 @@ exports[`snippet: #3 format[typescript] 1`] = `
 Cause: Classes may not have a field named 'constructor'."
 `;
 
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | abstract class Foo {
+  2 |   accessor 'constructor'
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #4 format[babel-ts] 1`] = `
 "Classes may not have a field named 'constructor'. (2:12)
   1 | abstract class Foo {
@@ -130,6 +162,14 @@ exports[`snippet: #4 format[typescript] 1`] = `
 Cause: Classes may not have a field named 'constructor'."
 `;
 
+exports[`snippet: #4 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | abstract class Foo {
+  2 |   accessor 'constructor'
+> 3 | }
+    | ^"
+`;
+
 exports[`snippet: #5 format[babel-ts] 1`] = `
 "Classes may not have a field named 'constructor'. (2:12)
   1 | abstract class Foo {
@@ -155,3 +195,11 @@ exports[`snippet: #5 format[typescript] 1`] = `
     | ^
 Cause: '(' expected."
 `;
+
+exports[`snippet: #5 format[yuku-ts] 1`] = `
+"Expected '(' for getter/setter definition, but found '}' (3:1)
+  1 | abstract class Foo {
+  2 |   accessor constructor
+> 3 | }
+    | ^"
+`;

tests/format/typescript/_errors_/class-property-named-constructor/format.test.js

@@ -5,5 +5,5 @@ runFormatTest(
     importMeta: import.meta,
     snippets: testCases.map((code) => `abstract ${code}`),
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/declare-accessor/__snapshots__/format.test.js.snap

@@ -29,6 +29,15 @@ exports[`declare-getter.ts format[typescript] 1`] = `
 Cause: 'declare' modifier cannot appear on class elements of this kind."
 `;
 
+exports[`declare-getter.ts format[yuku-ts] 1`] = `
+"A 'declare' modifier cannot appear on a class element of this kind (2:15)
+  1 | class Foo {
+> 2 |   declare get foo()
+    |               ^^^
+  3 | }
+  4 |"
+`;
+
 exports[`declare-setter.ts format[babel-ts] 1`] = `
 "'declare' is not allowed in setters. (2:3)
   1 | class Foo {
@@ -57,3 +66,12 @@ exports[`declare-setter.ts format[typescript] 1`] = `
   4 |
 Cause: 'declare' modifier cannot appear on class elements of this kind."
 `;
+
+exports[`declare-setter.ts format[yuku-ts] 1`] = `
+"A 'declare' modifier cannot appear on a class element of this kind (2:15)
+  1 | class Foo {
+> 2 |   declare set foo(v)
+    |               ^^^
+  3 | }
+  4 |"
+`;

tests/format/typescript/_errors_/declare-accessor/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);

tests/format/typescript/_errors_/declare-function-with-body/__snapshots__/format.test.js.snap

@@ -19,3 +19,9 @@ exports[`snippet: #0 format[typescript] 1`] = `
     | ^^^^^^^^^^^^^^^^^^^^^^^^^
 Cause: An implementation cannot be declared in ambient contexts."
 `;
+
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"An implementation cannot be declared in ambient contexts (1:24)
+> 1 | declare function foo() {}
+    |                        ^"
+`;

tests/format/typescript/_errors_/declare-function-with-body/format.test.js

@@ -3,5 +3,5 @@ runFormatTest(
     importMeta: import.meta,
     snippets: ["declare function foo() {}"],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/decrement-and-increment-operators/__snapshots__/format.test.js.snap

@@ -20,6 +20,12 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | 1 ++
+    | ^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Invalid left-hand side in postfix operation. (1:2)
 > 1 | (1)++
@@ -40,6 +46,12 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | (1)++
+    | ^^^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "Invalid left-hand side in postfix operation. (1:2)
 > 1 | (1)--
@@ -60,6 +72,12 @@ exports[`snippet: #2 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | (1)--
+    | ^^^"
+`;
+
 exports[`snippet: #3 format[babel-ts] 1`] = `
 "Invalid left-hand side in prefix operation. (1:4)
 > 1 | ++(1)
@@ -80,6 +98,12 @@ exports[`snippet: #3 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:3)
+> 1 | ++(1)
+    |   ^^^"
+`;
+
 exports[`snippet: #4 format[babel-ts] 1`] = `
 "Invalid left-hand side in prefix operation. (1:4)
 > 1 | --(1)
@@ -100,6 +124,12 @@ exports[`snippet: #4 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #4 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:3)
+> 1 | --(1)
+    |   ^^^"
+`;
+
 exports[`snippet: #5 format[babel-ts] 1`] = `
 "Invalid left-hand side in postfix operation. (1:2)
 > 1 | (1 + 2)++
@@ -120,6 +150,12 @@ exports[`snippet: #5 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #5 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | (1 + 2)++
+    | ^^^^^^^"
+`;
+
 exports[`snippet: #6 format[babel-ts] 1`] = `
 "Invalid left-hand side in postfix operation. (1:2)
 > 1 | (1 + 2)--
@@ -140,6 +176,12 @@ exports[`snippet: #6 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #6 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | (1 + 2)--
+    | ^^^^^^^"
+`;
+
 exports[`snippet: #7 format[babel-ts] 1`] = `
 "Invalid left-hand side in prefix operation. (1:4)
 > 1 | ++(1 + 2)
@@ -160,6 +202,12 @@ exports[`snippet: #7 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #7 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:3)
+> 1 | ++(1 + 2)
+    |   ^^^^^^^"
+`;
+
 exports[`snippet: #8 format[babel-ts] 1`] = `
 "Invalid left-hand side in prefix operation. (1:4)
 > 1 | --(1 + 2)
@@ -180,6 +228,12 @@ exports[`snippet: #8 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #8 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:3)
+> 1 | --(1 + 2)
+    |   ^^^^^^^"
+`;
+
 exports[`snippet: #9 format[babel-ts] 1`] = `
 "Invalid left-hand side in postfix operation. (1:2)
 > 1 | (x + x)++
@@ -200,6 +254,12 @@ exports[`snippet: #9 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #9 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | (x + x)++
+    | ^^^^^^^"
+`;
+
 exports[`snippet: #10 format[babel-ts] 1`] = `
 "Invalid left-hand side in postfix operation. (1:2)
 > 1 | (x + x)--
@@ -220,6 +280,12 @@ exports[`snippet: #10 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #10 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | (x + x)--
+    | ^^^^^^^"
+`;
+
 exports[`snippet: #11 format[babel-ts] 1`] = `
 "Invalid left-hand side in prefix operation. (1:4)
 > 1 | ++(x + x)
@@ -240,6 +306,12 @@ exports[`snippet: #11 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #11 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:3)
+> 1 | ++(x + x)
+    |   ^^^^^^^"
+`;
+
 exports[`snippet: #12 format[babel-ts] 1`] = `
 "Invalid left-hand side in prefix operation. (1:4)
 > 1 | --(x + x)
@@ -260,6 +332,12 @@ exports[`snippet: #12 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #12 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:3)
+> 1 | --(x + x)
+    |   ^^^^^^^"
+`;
+
 exports[`snippet: #13 format[babel-ts] 1`] = `
 "Invalid left-hand side in postfix operation. (1:1)
 > 1 | a()++
@@ -280,6 +358,12 @@ exports[`snippet: #13 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #13 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | a()++
+    | ^^^"
+`;
+
 exports[`snippet: #14 format[babel-ts] 1`] = `
 "Invalid optional chaining in the left-hand side of postfix operation. (1:1)
 > 1 | x?.y++
@@ -300,6 +384,12 @@ exports[`snippet: #14 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #14 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | x?.y++
+    | ^^^^"
+`;
+
 exports[`snippet: #15 format[babel-ts] 1`] = `
 "Invalid optional chaining in the left-hand side of postfix operation. (1:1)
 > 1 | x?.y.z++
@@ -320,6 +410,12 @@ exports[`snippet: #15 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #15 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | x?.y.z++
+    | ^^^^^^"
+`;
+
 exports[`snippet: #16 format[babel-ts] 1`] = `
 "Invalid optional chaining in the left-hand side of postfix operation. (1:1)
 > 1 | x?.y().z++
@@ -340,6 +436,12 @@ exports[`snippet: #16 format[typescript] 1`] = `
 Cause: Invalid left-hand side expression in unary operation"
 `;
 
+exports[`snippet: #16 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | x?.y().z++
+    | ^^^^^^^^"
+`;
+
 exports[`snippet: #17 format[babel-ts] 1`] = `
 "Invalid left-hand side in postfix operation. (1:2)
 > 1 | (a())++
@@ -359,3 +461,9 @@ exports[`snippet: #17 format[typescript] 1`] = `
     | ^^^^^
 Cause: Invalid left-hand side expression in unary operation"
 `;
+
+exports[`snippet: #17 format[yuku-ts] 1`] = `
+"Invalid operand for increment/decrement operator (1:1)
+> 1 | (a())++
+    | ^^^^^"
+`;

tests/format/typescript/_errors_/decrement-and-increment-operators/format.test.js

@@ -29,5 +29,5 @@ runFormatTest(
       "(a())++",
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/duplicated-accessibility-modifiers/__snapshots__/format.test.js.snap

@@ -20,6 +20,12 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: Accessibility modifier already seen."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected ';' after class field, but found 'method' (1:28)
+> 1 | class A {private protected method(){}}
+    |                            ^^^^^^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Accessibility modifier already seen: 'public'. (1:20)
 > 1 | class A {protected public method(){}}
@@ -40,6 +46,12 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: Accessibility modifier already seen."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Expected ';' after class field, but found 'method' (1:27)
+> 1 | class A {protected public method(){}}
+    |                           ^^^^^^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "Accessibility modifier already seen: 'private'. (1:18)
 > 1 | class A {private private method(){}}
@@ -60,6 +72,12 @@ exports[`snippet: #2 format[typescript] 1`] = `
 Cause: Accessibility modifier already seen."
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"Expected ';' after class field, but found 'method' (1:26)
+> 1 | class A {private private method(){}}
+    |                          ^^^^^^"
+`;
+
 exports[`snippet: #3 format[babel-ts] 1`] = `
 "Accessibility modifier already seen: 'protected'. (1:18)
 > 1 | class A {private protected property}
@@ -80,6 +98,12 @@ exports[`snippet: #3 format[typescript] 1`] = `
 Cause: Accessibility modifier already seen."
 `;
 
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"Expected ';' after class field, but found 'property' (1:28)
+> 1 | class A {private protected property}
+    |                            ^^^^^^^^"
+`;
+
 exports[`snippet: #4 format[babel-ts] 1`] = `
 "Accessibility modifier already seen: 'public'. (1:20)
 > 1 | class A {protected public property}
@@ -100,6 +124,12 @@ exports[`snippet: #4 format[typescript] 1`] = `
 Cause: Accessibility modifier already seen."
 `;
 
+exports[`snippet: #4 format[yuku-ts] 1`] = `
+"Expected ';' after class field, but found 'property' (1:27)
+> 1 | class A {protected public property}
+    |                           ^^^^^^^^"
+`;
+
 exports[`snippet: #5 format[babel-ts] 1`] = `
 "Accessibility modifier already seen: 'private'. (1:18)
 > 1 | class A {private private property}
@@ -119,3 +149,9 @@ exports[`snippet: #5 format[typescript] 1`] = `
     |                  ^^^^^^^
 Cause: Accessibility modifier already seen."
 `;
+
+exports[`snippet: #5 format[yuku-ts] 1`] = `
+"Expected ';' after class field, but found 'property' (1:26)
+> 1 | class A {private private property}
+    |                          ^^^^^^^^"
+`;

tests/format/typescript/_errors_/duplicated-accessibility-modifiers/format.test.js

@@ -10,5 +10,5 @@ runFormatTest(
       "class A {private private property}",
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/empty-type-arguments-parameters/__snapshots__/format.test.js.snap

@@ -20,6 +20,12 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: Type argument list cannot be empty."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"A type argument list cannot be empty (1:5)
+> 1 | foo<>()
+    |     ^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Type argument list cannot be empty. (1:5)
 > 1 | (foo<>())
@@ -40,6 +46,12 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: Type argument list cannot be empty."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"A type argument list cannot be empty (1:6)
+> 1 | (foo<>())
+    |      ^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "Type argument list cannot be empty. (1:8)
 > 1 | new Foo<>()
@@ -60,6 +72,12 @@ exports[`snippet: #2 format[typescript] 1`] = `
 Cause: Type argument list cannot be empty."
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"A type argument list cannot be empty (1:9)
+> 1 | new Foo<>()
+    |         ^"
+`;
+
 exports[`snippet: #3 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:13)
 > 1 | function foo<>(){}
@@ -80,6 +98,12 @@ exports[`snippet: #3 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:14)
+> 1 | function foo<>(){}
+    |              ^"
+`;
+
 exports[`snippet: #4 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:14)
 > 1 | (function foo<>(){})
@@ -100,6 +124,12 @@ exports[`snippet: #4 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #4 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:15)
+> 1 | (function foo<>(){})
+    |               ^"
+`;
+
 exports[`snippet: #5 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:10)
 > 1 | class Foo<> {}
@@ -120,6 +150,12 @@ exports[`snippet: #5 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #5 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:11)
+> 1 | class Foo<> {}
+    |           ^"
+`;
+
 exports[`snippet: #6 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:11)
 > 1 | (class Foo<> {})
@@ -140,6 +176,12 @@ exports[`snippet: #6 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #6 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:12)
+> 1 | (class Foo<> {})
+    |            ^"
+`;
+
 exports[`snippet: #7 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:23)
 > 1 | class Foo {constructor<>()}
@@ -160,6 +202,12 @@ exports[`snippet: #7 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #7 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:24)
+> 1 | class Foo {constructor<>()}
+    |                        ^"
+`;
+
 exports[`snippet: #8 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:24)
 > 1 | (class Foo {constructor<>()})
@@ -180,6 +228,12 @@ exports[`snippet: #8 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #8 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:25)
+> 1 | (class Foo {constructor<>()})
+    |                         ^"
+`;
+
 exports[`snippet: #9 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:18)
 > 1 | class Foo {method<>()}
@@ -200,6 +254,12 @@ exports[`snippet: #9 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #9 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:19)
+> 1 | class Foo {method<>()}
+    |                   ^"
+`;
+
 exports[`snippet: #10 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:19)
 > 1 | (class Foo {method<>()})
@@ -220,6 +280,12 @@ exports[`snippet: #10 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #10 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:20)
+> 1 | (class Foo {method<>()})
+    |                    ^"
+`;
+
 exports[`snippet: #11 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:22)
 > 1 | class Foo {get getter<>()}
@@ -240,6 +306,12 @@ exports[`snippet: #11 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #11 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:23)
+> 1 | class Foo {get getter<>()}
+    |                       ^"
+`;
+
 exports[`snippet: #12 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:23)
 > 1 | (class Foo {get getter<>()})
@@ -260,6 +332,12 @@ exports[`snippet: #12 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #12 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:24)
+> 1 | (class Foo {get getter<>()})
+    |                        ^"
+`;
+
 exports[`snippet: #13 format[babel-ts] 1`] = `
 "Type argument list cannot be empty. (1:25)
 > 1 | class Foo {property: Bar<> = 1}
@@ -280,6 +358,12 @@ exports[`snippet: #13 format[typescript] 1`] = `
 Cause: Type argument list cannot be empty."
 `;
 
+exports[`snippet: #13 format[yuku-ts] 1`] = `
+"A type argument list cannot be empty (1:26)
+> 1 | class Foo {property: Bar<> = 1}
+    |                          ^"
+`;
+
 exports[`snippet: #14 format[babel-ts] 1`] = `
 "Type argument list cannot be empty. (1:26)
 > 1 | (class Foo {property: Bar<> = 1})
@@ -300,6 +384,12 @@ exports[`snippet: #14 format[typescript] 1`] = `
 Cause: Type argument list cannot be empty."
 `;
 
+exports[`snippet: #14 format[yuku-ts] 1`] = `
+"A type argument list cannot be empty (1:27)
+> 1 | (class Foo {property: Bar<> = 1})
+    |                           ^"
+`;
+
 exports[`snippet: #15 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:14)
 > 1 | interface Foo<> {}
@@ -320,6 +410,12 @@ exports[`snippet: #15 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #15 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:15)
+> 1 | interface Foo<> {}
+    |               ^"
+`;
+
 exports[`snippet: #16 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:19)
 > 1 | interface Foo {bar<>()}
@@ -340,6 +436,12 @@ exports[`snippet: #16 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #16 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:20)
+> 1 | interface Foo {bar<>()}
+    |                    ^"
+`;
+
 exports[`snippet: #17 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:16)
 > 1 | interface Foo {<>(): boolean}
@@ -360,6 +462,12 @@ exports[`snippet: #17 format[typescript] 1`] = `
 Cause: Type parameter list cannot be empty."
 `;
 
+exports[`snippet: #17 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:17)
+> 1 | interface Foo {<>(): boolean}
+    |                 ^"
+`;
+
 exports[`snippet: #18 format[babel-ts] 1`] = `
 "Type argument list cannot be empty. (1:15)
 > 1 | const foo: Foo<> = 1
@@ -380,6 +488,12 @@ exports[`snippet: #18 format[typescript] 1`] = `
 Cause: Type argument list cannot be empty."
 `;
 
+exports[`snippet: #18 format[yuku-ts] 1`] = `
+"A type argument list cannot be empty (1:16)
+> 1 | const foo: Foo<> = 1
+    |                ^"
+`;
+
 exports[`snippet: #19 format[babel-ts] 1`] = `
 "Type parameter list cannot be empty. (1:12)
 > 1 | type Foo = <>() => {}
@@ -399,3 +513,9 @@ exports[`snippet: #19 format[typescript] 1`] = `
     |            ^^
 Cause: Type parameter list cannot be empty."
 `;
+
+exports[`snippet: #19 format[yuku-ts] 1`] = `
+"A type parameter list cannot be empty (1:13)
+> 1 | type Foo = <>() => {}
+    |             ^"
+`;

tests/format/typescript/_errors_/empty-type-arguments-parameters/format.test.js

@@ -24,5 +24,5 @@ runFormatTest(
       "type Foo = <>() => {}",
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/enum/__snapshots__/format.test.js.snap

@@ -44,6 +44,22 @@ exports[`snippet: #0 format[typescript] 2`] = `
 Cause: Computed property names are not allowed in enums."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Unexpected token '1' as enum member name (2:3)
+  1 | enum Foo {
+> 2 |   1 = 1
+    |   ^
+  3 | }"
+`;
+
+exports[`snippet: #0 format[yuku-ts] 2`] = `
+"Computed property names are not allowed in enums (2:3)
+  1 | enum Foo {
+> 2 |   ['foo'] = 1
+    |   ^^^^^^^
+  3 | }"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Unexpected token (2:3)
   1 | enum Foo {
@@ -70,6 +86,14 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: An enum member cannot have a numeric name."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Unexpected token '1n' as enum member name (2:3)
+  1 | enum Foo {
+> 2 |   1n = 1
+    |   ^^
+  3 | }"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "Unexpected token (2:3)
   1 | enum Foo {
@@ -96,6 +120,14 @@ exports[`snippet: #2 format[typescript] 1`] = `
 Cause: Computed property names are not allowed in enums."
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"Computed property names are not allowed in enums (2:3)
+  1 | enum Foo {
+> 2 |   [1] = 1
+    |   ^^^
+  3 | }"
+`;
+
 exports[`snippet: #3 format[babel-ts] 1`] = `
 "Unexpected token (2:3)
   1 | enum Foo {
@@ -122,6 +154,14 @@ exports[`snippet: #3 format[typescript] 1`] = `
 Cause: Computed property names are not allowed in enums."
 `;
 
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"Computed property names are not allowed in enums (2:3)
+  1 | enum Foo {
+> 2 |   [1n] = 1
+    |   ^^^^
+  3 | }"
+`;
+
 exports[`snippet: #4 format[babel-ts] 1`] = `
 "Unexpected token (2:3)
   1 | enum Foo {
@@ -147,3 +187,11 @@ exports[`snippet: #4 format[typescript] 1`] = `
   3 | }
 Cause: Computed property names are not allowed in enums."
 `;
+
+exports[`snippet: #4 format[yuku-ts] 1`] = `
+"Computed property names are not allowed in enums (2:3)
+  1 | enum Foo {
+> 2 |   [foo] = 1
+    |   ^^^^^
+  3 | }"
+`;

tests/format/typescript/_errors_/enum/format.test.js

@@ -11,7 +11,7 @@ runFormatTest(
       `,
     ),
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );
 
 runFormatTest(
@@ -32,5 +32,6 @@ runFormatTest(
     // https://github.com/microsoft/TypeScript/issues/61834
     // https://github.com/microsoft/TypeScript/issues/42468
     // "oxc-ts",
+    "yuku-ts",
   ],
 );

tests/format/typescript/_errors_/export-declare/__snapshots__/format.test.js.snap

@@ -22,3 +22,10 @@ exports[`export-declare.ts format[typescript] 1`] = `
   2 |
 Cause: Declaration or statement expected."
 `;
+
+exports[`export-declare.ts format[yuku-ts] 1`] = `
+"Expected declaration after 'export', but found 'declare' (1:8)
+> 1 | export declare foo;
+    |        ^^^^^^^
+  2 |"
+`;

tests/format/typescript/_errors_/export-declare/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);

tests/format/typescript/_errors_/import-attributes/__snapshots__/format.test.js.snap

@@ -22,3 +22,10 @@ exports[`module-attributes-static.ts format[typescript] 1`] = `
   2 |
 Cause: '{' expected."
 `;
+
+exports[`module-attributes-static.ts format[yuku-ts] 1`] = `
+"Expected '{' after 'with' in import attributes, but found 'type' (1:33)
+> 1 | import foo from "foo.json" with type: "json";
+    |                                 ^^^^
+  2 |"
+`;

tests/format/typescript/_errors_/import-attributes/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);

tests/format/typescript/_errors_/import-reflection/__snapshots__/format.test.js.snap

@@ -26,6 +26,14 @@ exports[`valid-flow-default-import.mts format[typescript] 1`] = `
 Cause: '=' expected."
 `;
 
+exports[`valid-flow-default-import.mts format[yuku-ts] 1`] = `
+"Expected 'from' after import clause, but found 'foo' (1:15)
+> 1 | import module foo from "./module.wasm";
+    |               ^^^
+  2 | import bar from "./module.wasm";
+  3 |"
+`;
+
 exports[`valid-ts-default-import.mts format[babel-ts] 1`] = `
 "Unexpected token, expected "from" (1:15)
 > 1 | import module foo from "./module.wasm";
@@ -51,3 +59,11 @@ exports[`valid-ts-default-import.mts format[typescript] 1`] = `
   3 |
 Cause: '=' expected."
 `;
+
+exports[`valid-ts-default-import.mts format[yuku-ts] 1`] = `
+"Expected 'from' after import clause, but found 'foo' (1:15)
+> 1 | import module foo from "./module.wasm";
+    |               ^^^
+  2 | import bar from "./module.wasm";
+  3 |"
+`;

tests/format/typescript/_errors_/import-reflection/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);

tests/format/typescript/_errors_/interface/__snapshots__/format.test.js.snap

@@ -20,6 +20,12 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: A property signature cannot have an initializer."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected ';', ',', or newline between type members, but found '=' (1:25)
+> 1 | interface I { x: number = 1;}
+    |                         ^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Unexpected token, expected "{" (1:13)
 > 1 | interface A mixins B {}
@@ -40,6 +46,12 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: '{' expected."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Expected '{' to start an interface body, but found 'mixins' (1:13)
+> 1 | interface A mixins B {}
+    |             ^^^^^^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "Unexpected token, expected "{" (1:13)
 > 1 | interface A implements B {}
@@ -59,3 +71,9 @@ exports[`snippet: #2 format[typescript] 1`] = `
     |             ^^^^^^^^^^^^
 Cause: Interface declaration cannot have 'implements' clause."
 `;
+
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"Expected '{' to start an interface body, but found 'implements' (1:13)
+> 1 | interface A implements B {}
+    |             ^^^^^^^^^^"
+`;

tests/format/typescript/_errors_/interface/format.test.js

@@ -9,5 +9,5 @@ runFormatTest(
       "interface A implements B {}",
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/invalid-class-implements/__snapshots__/format.test.js.snap

@@ -20,6 +20,12 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: A class can only implement an identifier/qualified-name with optional type arguments."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected '{' to start class body, but found '?.' (1:23)
+> 1 | class Foo implements A?.B {}
+    |                       ^^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "'implements' list can only include identifiers or qualified-names with optional type arguments. (1:23)
 > 1 | (class Foo implements A?.B {})
@@ -40,6 +46,12 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: A class can only implement an identifier/qualified-name with optional type arguments."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Expected '{' to start class body, but found '?.' (1:24)
+> 1 | (class Foo implements A?.B {})
+    |                        ^^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "'implements' list can only include identifiers or qualified-names with optional type arguments. (1:22)
 > 1 | class Foo implements "thing" {}
@@ -60,6 +72,12 @@ exports[`snippet: #2 format[typescript] 1`] = `
 Cause: A class can only implement an identifier/qualified-name with optional type arguments."
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"Expected an identifier, but found '"thing"' (1:22)
+> 1 | class Foo implements "thing" {}
+    |                      ^^^^^^^"
+`;
+
 exports[`snippet: #3 format[babel-ts] 1`] = `
 "'implements' list can only include identifiers or qualified-names with optional type arguments. (1:23)
 > 1 | (class Foo implements "thing" {})
@@ -79,3 +97,9 @@ exports[`snippet: #3 format[typescript] 1`] = `
     |                       ^^^^^^^
 Cause: A class can only implement an identifier/qualified-name with optional type arguments."
 `;
+
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"Expected an identifier, but found '"thing"' (1:23)
+> 1 | (class Foo implements "thing" {})
+    |                       ^^^^^^^"
+`;

tests/format/typescript/_errors_/invalid-class-implements/format.test.js

@@ -6,5 +6,5 @@ runFormatTest(
       'class Foo implements "thing" {}',
     ].flatMap((code) => [code, `(${code})`]),
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/invalid-define/format.test.js

@@ -1,27 +0,0 @@
-runFormatTest(
-  {
-    importMeta: import.meta,
-    snippets: [
-      "let x!",
-      "let x! = 1",
-      "class C {x!}",
-      "class C {x! = 1}",
-      // "class C {accessor x!}",
-      // "class C {accessor x! = 1}",
-    ],
-  },
-  ["typescript", "babel-ts", "oxc-ts"],
-);
-
-runFormatTest(
-  {
-    importMeta: import.meta,
-    snippets: ["class C {accessor x!}", "class C {accessor x! = 1}"],
-  },
-  [
-    "typescript",
-    "babel-ts",
-    // https://github.com/oxc-project/oxc/issues/24503
-    // "oxc-ts",
-  ],
-);

tests/format/typescript/_errors_/invalid-definite/__snapshots__/format.test.js.snap

@@ -7,13 +7,6 @@ exports[`snippet: #0 format[babel-ts] 1`] = `
 Cause: Declarations with definite assignment assertions must also have type annotations. (1:4)"
 `;
 
-exports[`snippet: #0 format[babel-ts] 2`] = `
-"Declarations with definite assignment assertions must also have type annotations. (1:10)
-> 1 | class C {accessor x!}
-    |          ^
-Cause: Declarations with definite assignment assertions must also have type annotations. (1:9)"
-`;
-
 exports[`snippet: #0 format[oxc-ts] 1`] = `
 "Declarations with definite assignment assertions must also have type annotations. (1:6)
 > 1 | let x!
@@ -27,11 +20,10 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: Declarations with definite assignment assertions must also have type annotations."
 `;
 
-exports[`snippet: #0 format[typescript] 2`] = `
+exports[`snippet: #0 format[yuku-ts] 1`] = `
-"Declarations with definite assignment assertions must also have type annotations. (1:10)
+"A declaration with a definite assignment assertion must also have a type annotation (1:5)
-> 1 | class C {accessor x!}
+> 1 | let x!
-    |          ^^^^^^^^^^^
+    |     ^"
-Cause: Declarations with definite assignment assertions must also have type annotations."
 `;
 
 exports[`snippet: #1 format[babel-ts] 1`] = `
@@ -41,13 +33,6 @@ exports[`snippet: #1 format[babel-ts] 1`] = `
 Cause: Declarations with initializers cannot also have definite assignment assertions. (1:4)"
 `;
 
-exports[`snippet: #1 format[babel-ts] 2`] = `
-"Declarations with initializers cannot also have definite assignment assertions. (1:10)
-> 1 | class C {accessor x! = 1}
-    |          ^
-Cause: Declarations with initializers cannot also have definite assignment assertions. (1:9)"
-`;
-
 exports[`snippet: #1 format[oxc-ts] 1`] = `
 "Declarations with initializers cannot also have definite assignment assertions. (1:6)
 > 1 | let x! = 1
@@ -61,11 +46,10 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: Declarations with initializers cannot also have definite assignment assertions."
 `;
 
-exports[`snippet: #1 format[typescript] 2`] = `
+exports[`snippet: #1 format[yuku-ts] 1`] = `
-"Declarations with definite assignment assertions must also have type annotations. (1:10)
+"A declaration with an initializer cannot also have a definite assignment assertion (1:5)
-> 1 | class C {accessor x! = 1}
+> 1 | let x! = 1
-    |          ^^^^^^^^^^^^^^^
+    |     ^"
-Cause: Declarations with definite assignment assertions must also have type annotations."
 `;
 
 exports[`snippet: #2 format[babel-ts] 1`] = `
@@ -88,6 +72,12 @@ exports[`snippet: #2 format[typescript] 1`] = `
 Cause: Declarations with definite assignment assertions must also have type annotations."
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"A declaration with a definite assignment assertion must also have a type annotation (1:10)
+> 1 | class C {x!}
+    |          ^"
+`;
+
 exports[`snippet: #3 format[babel-ts] 1`] = `
 "Declarations with initializers cannot also have definite assignment assertions. (1:10)
 > 1 | class C {x! = 1}
@@ -107,3 +97,61 @@ exports[`snippet: #3 format[typescript] 1`] = `
     |          ^^^^^^
 Cause: Declarations with definite assignment assertions must also have type annotations."
 `;
+
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"A declaration with an initializer cannot also have a definite assignment assertion (1:10)
+> 1 | class C {x! = 1}
+    |          ^"
+`;
+
+exports[`snippet: #4 format[babel-ts] 1`] = `
+"Declarations with definite assignment assertions must also have type annotations. (1:10)
+> 1 | class C {accessor x!}
+    |          ^
+Cause: Declarations with definite assignment assertions must also have type annotations. (1:9)"
+`;
+
+exports[`snippet: #4 format[oxc-ts] 1`] = `
+"Declarations with definite assignment assertions must also have type annotations. (1:20)
+> 1 | class C {accessor x!}
+    |                    ^"
+`;
+
+exports[`snippet: #4 format[typescript] 1`] = `
+"Declarations with definite assignment assertions must also have type annotations. (1:10)
+> 1 | class C {accessor x!}
+    |          ^^^^^^^^^^^
+Cause: Declarations with definite assignment assertions must also have type annotations."
+`;
+
+exports[`snippet: #4 format[yuku-ts] 1`] = `
+"A declaration with a definite assignment assertion must also have a type annotation (1:19)
+> 1 | class C {accessor x!}
+    |                   ^"
+`;
+
+exports[`snippet: #5 format[babel-ts] 1`] = `
+"Declarations with initializers cannot also have definite assignment assertions. (1:10)
+> 1 | class C {accessor x! = 1}
+    |          ^
+Cause: Declarations with initializers cannot also have definite assignment assertions. (1:9)"
+`;
+
+exports[`snippet: #5 format[oxc-ts] 1`] = `
+"Declarations with initializers cannot also have definite assignment assertions. (1:20)
+> 1 | class C {accessor x! = 1}
+    |                    ^"
+`;
+
+exports[`snippet: #5 format[typescript] 1`] = `
+"Declarations with definite assignment assertions must also have type annotations. (1:10)
+> 1 | class C {accessor x! = 1}
+    |          ^^^^^^^^^^^^^^^
+Cause: Declarations with definite assignment assertions must also have type annotations."
+`;
+
+exports[`snippet: #5 format[yuku-ts] 1`] = `
+"A declaration with an initializer cannot also have a definite assignment assertion (1:19)
+> 1 | class C {accessor x! = 1}
+    |                   ^"
+`;

tests/format/typescript/_errors_/invalid-definite/format.test.js

@@ -0,0 +1,14 @@
+runFormatTest(
+  {
+    importMeta: import.meta,
+    snippets: [
+      "let x!",
+      "let x! = 1",
+      "class C {x!}",
+      "class C {x! = 1}",
+      "class C {accessor x!}",
+      "class C {accessor x! = 1}",
+    ],
+  },
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
+);

tests/format/typescript/_errors_/invalid-import-equals/__snapshots__/format.test.js.snap

@@ -7,9 +7,21 @@ exports[`snippet: #0 format[babel-ts] 1`] = `
 Cause: An import alias can not use 'import type'. (1:16)"
 `;
 
+exports[`snippet: #0 format[oxc-ts] 1`] = `
+"An import alias cannot use 'import type' (1:1)
+> 1 | import type F = T;
+    | ^^^^^^^^^^^^^^^^^^"
+`;
+
 exports[`snippet: #0 format[typescript] 1`] = `
 "An import alias cannot use 'import type' (1:1)
 > 1 | import type F = T;
     | ^^^^^^^^^^^^^^^^^^
 Cause: An import alias cannot use 'import type'"
 `;
+
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"An import alias cannot use 'import type' (1:1)
+> 1 | import type F = T;
+    | ^^^^^^^^^^^^^^^^^"
+`;

tests/format/typescript/_errors_/invalid-import-equals/format.test.js

@@ -3,10 +3,5 @@ runFormatTest(
     importMeta: import.meta,
     snippets: ["import type F = T;"],
   },
-  [
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
-    "typescript",
-    "babel-ts",
-    // Didn't reject
-    // "oxc-ts"
-  ],
 );

tests/format/typescript/_errors_/invalid-interface-extends/__snapshots__/format.test.js.snap

@@ -7,6 +7,12 @@ exports[`snippet: #0 format[babel-ts] 1`] = `
 Cause: 'extends' list can only include identifiers or qualified-names with optional type arguments. (1:20)"
 `;
 
+exports[`snippet: #0 format[oxc-ts] 1`] = `
+"An interface can only extend an identifier/qualified-name with optional type arguments. (1:21)
+> 1 | interface A extends (typeof fs) { }
+    |                     ^^^^^^^^^^^"
+`;
+
 exports[`snippet: #0 format[typescript] 1`] = `
 "Interface declaration can only extend an identifier/qualified name with optional type arguments. (1:21)
 > 1 | interface A extends (typeof fs) { }
@@ -14,6 +20,12 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: Interface declaration can only extend an identifier/qualified name with optional type arguments."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected an identifier, but found '(' (1:21)
+> 1 | interface A extends (typeof fs) { }
+    |                     ^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "'extends' list can only include identifiers or qualified-names with optional type arguments. (1:21)
 > 1 | interface B extends C['D'] { }
@@ -21,6 +33,12 @@ exports[`snippet: #1 format[babel-ts] 1`] = `
 Cause: 'extends' list can only include identifiers or qualified-names with optional type arguments. (1:20)"
 `;
 
+exports[`snippet: #1 format[oxc-ts] 1`] = `
+"An interface can only extend an identifier/qualified-name with optional type arguments. (1:21)
+> 1 | interface B extends C['D'] { }
+    |                     ^^^^^^"
+`;
+
 exports[`snippet: #1 format[typescript] 1`] = `
 "Interface declaration can only extend an identifier/qualified name with optional type arguments. (1:21)
 > 1 | interface B extends C['D'] { }
@@ -28,6 +46,12 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: Interface declaration can only extend an identifier/qualified name with optional type arguments."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Expected '{' to start an interface body, but found '[' (1:22)
+> 1 | interface B extends C['D'] { }
+    |                      ^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "'extends' list can only include identifiers or qualified-names with optional type arguments. (1:21)
 > 1 | interface E extends F?.G { }
@@ -35,6 +59,12 @@ exports[`snippet: #2 format[babel-ts] 1`] = `
 Cause: 'extends' list can only include identifiers or qualified-names with optional type arguments. (1:20)"
 `;
 
+exports[`snippet: #2 format[oxc-ts] 1`] = `
+"An interface can only extend an identifier/qualified-name with optional type arguments. (1:21)
+> 1 | interface E extends F?.G { }
+    |                     ^^^^"
+`;
+
 exports[`snippet: #2 format[typescript] 1`] = `
 "Interface declaration can only extend an identifier/qualified name with optional type arguments. (1:21)
 > 1 | interface E extends F?.G { }
@@ -42,6 +72,12 @@ exports[`snippet: #2 format[typescript] 1`] = `
 Cause: Interface declaration can only extend an identifier/qualified name with optional type arguments."
 `;
 
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"Expected '{' to start an interface body, but found '?.' (1:22)
+> 1 | interface E extends F?.G { }
+    |                      ^^"
+`;
+
 exports[`snippet: #3 format[babel-ts] 1`] = `
 "Unexpected token, expected "," (1:23)
 > 1 | interface H extends I extends J { }
@@ -49,6 +85,12 @@ exports[`snippet: #3 format[babel-ts] 1`] = `
 Cause: Unexpected token, expected "," (1:22)"
 `;
 
+exports[`snippet: #3 format[oxc-ts] 1`] = `
+"'extends' clause already seen (1:23)
+> 1 | interface H extends I extends J { }
+    |                       ^^^^^^^"
+`;
+
 exports[`snippet: #3 format[typescript] 1`] = `
 "'extends' clause already seen. (1:23)
 > 1 | interface H extends I extends J { }
@@ -56,6 +98,12 @@ exports[`snippet: #3 format[typescript] 1`] = `
 Cause: 'extends' clause already seen."
 `;
 
+exports[`snippet: #3 format[yuku-ts] 1`] = `
+"Expected '{' to start an interface body, but found 'extends' (1:23)
+> 1 | interface H extends I extends J { }
+    |                       ^^^^^^^"
+`;
+
 exports[`snippet: #4 format[babel-ts] 1`] = `
 "'extends' list can only include identifiers or qualified-names with optional type arguments. (1:21)
 > 1 | interface K extends 2 { }
@@ -63,6 +111,12 @@ exports[`snippet: #4 format[babel-ts] 1`] = `
 Cause: 'extends' list can only include identifiers or qualified-names with optional type arguments. (1:20)"
 `;
 
+exports[`snippet: #4 format[oxc-ts] 1`] = `
+"An interface can only extend an identifier/qualified-name with optional type arguments. (1:21)
+> 1 | interface K extends 2 { }
+    |                     ^"
+`;
+
 exports[`snippet: #4 format[typescript] 1`] = `
 "Interface declaration can only extend an identifier/qualified name with optional type arguments. (1:21)
 > 1 | interface K extends 2 { }
@@ -70,6 +124,12 @@ exports[`snippet: #4 format[typescript] 1`] = `
 Cause: Interface declaration can only extend an identifier/qualified name with optional type arguments."
 `;
 
+exports[`snippet: #4 format[yuku-ts] 1`] = `
+"Expected an identifier, but found '2' (1:21)
+> 1 | interface K extends 2 { }
+    |                     ^"
+`;
+
 exports[`snippet: #5 format[babel-ts] 1`] = `
 "'extends' list can only include identifiers or qualified-names with optional type arguments. (1:21)
 > 1 | interface L extends M().N { }
@@ -77,9 +137,21 @@ exports[`snippet: #5 format[babel-ts] 1`] = `
 Cause: 'extends' list can only include identifiers or qualified-names with optional type arguments. (1:20)"
 `;
 
+exports[`snippet: #5 format[oxc-ts] 1`] = `
+"An interface can only extend an identifier/qualified-name with optional type arguments. (1:21)
+> 1 | interface L extends M().N { }
+    |                     ^^^^^"
+`;
+
 exports[`snippet: #5 format[typescript] 1`] = `
 "Interface declaration can only extend an identifier/qualified name with optional type arguments. (1:21)
 > 1 | interface L extends M().N { }
     |                     ^^^^^
 Cause: Interface declaration can only extend an identifier/qualified name with optional type arguments."
 `;
+
+exports[`snippet: #5 format[yuku-ts] 1`] = `
+"Expected '{' to start an interface body, but found '(' (1:22)
+> 1 | interface L extends M().N { }
+    |                      ^"
+`;

tests/format/typescript/_errors_/invalid-interface-extends/format.test.js

@@ -18,5 +18,5 @@ runFormatTest(
       "interface L extends M().N { }",
     ],
   },
-  ["typescript", "babel-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/invalid-interface-heritage-clause/__snapshots__/format.test.js.snap

@@ -27,6 +27,12 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: 'extends' list cannot be empty."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected an identifier, but found '{' (1:23)
+> 1 | interface Foo extends {}
+    |                       ^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Unexpected token, expected "{" (1:13)
 > 1 | interface F implements {}
@@ -47,6 +53,12 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: Interface declaration cannot have 'implements' clause."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Expected '{' to start an interface body, but found 'implements' (1:13)
+> 1 | interface F implements {}
+    |             ^^^^^^^^^^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "Unexpected token, expected "{" (1:13)
 > 1 | interface F implements A {}
@@ -66,3 +78,9 @@ exports[`snippet: #2 format[typescript] 1`] = `
     |             ^^^^^^^^^^^^
 Cause: Interface declaration cannot have 'implements' clause."
 `;
+
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"Expected '{' to start an interface body, but found 'implements' (1:13)
+> 1 | interface F implements A {}
+    |             ^^^^^^^^^^"
+`;

tests/format/typescript/_errors_/invalid-interface-heritage-clause/format.test.js

@@ -5,14 +5,21 @@ runFormatTest(
       "interface Foo extends {}",
       "interface F implements {}",
       "interface F implements A {}",
+      // "interface F extends implements {}",
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );
+
 runFormatTest(
   {
     importMeta: import.meta,
     snippets: ["interface F extends implements {}"],
   },
-  ["typescript"],
+  [
+    "typescript",
+    // "babel-ts",
+    // "oxc-ts",
+    // "yuku-ts",
+  ],
 );

tests/format/typescript/_errors_/invalid-typescript-decorators/__snapshots__/format.test.js.snap

@@ -10,6 +10,15 @@ exports[`decorator.ts format[babel-ts] 1`] = `
 Cause: Leading decorators must be attached to a class declaration. (4:0)"
 `;
 
+exports[`decorator.ts format[oxc-ts] 1`] = `
+"Unexpected token (4:1)
+  2 |
+  3 | @dec
+> 4 | enum E {}
+    | ^^^^
+  5 |"
+`;
+
 exports[`decorator.ts format[typescript] 1`] = `
 "Decorators are not valid here. (3:1)
   1 | declare function dec<T>(target: T): T;
@@ -21,6 +30,15 @@ exports[`decorator.ts format[typescript] 1`] = `
 Cause: Decorators are not valid here."
 `;
 
+exports[`decorator.ts format[yuku-ts] 1`] = `
+"Expected 'class' keyword, but found 'enum' (4:1)
+  2 |
+  3 | @dec
+> 4 | enum E {}
+    | ^^^^
+  5 |"
+`;
+
 exports[`enums.ts format[babel-ts] 1`] = `
 "Leading decorators must be attached to a class declaration. (4:1)
   2 |
@@ -33,6 +51,17 @@ exports[`enums.ts format[babel-ts] 1`] = `
 Cause: Leading decorators must be attached to a class declaration. (4:0)"
 `;
 
+exports[`enums.ts format[oxc-ts] 1`] = `
+"Unexpected token (4:1)
+  2 |
+  3 | @decorator()
+> 4 | enum Direction {
+    | ^^^^
+  5 |                Up = 1,
+  6 |   Down,
+  7 |   Left,"
+`;
+
 exports[`enums.ts format[typescript] 1`] = `
 "Decorators are not valid here. (3:1)
   1 | // https://github.com/typescript-eslint/typescript-eslint/pull/2375
@@ -45,6 +74,17 @@ exports[`enums.ts format[typescript] 1`] = `
 Cause: Decorators are not valid here."
 `;
 
+exports[`enums.ts format[yuku-ts] 1`] = `
+"Expected 'class' keyword, but found 'enum' (4:1)
+  2 |
+  3 | @decorator()
+> 4 | enum Direction {
+    | ^^^^
+  5 |                Up = 1,
+  6 |   Down,
+  7 |   Left,"
+`;
+
 exports[`function.ts format[babel-ts] 1`] = `
 "Leading decorators must be attached to a class declaration. (4:1)
   2 |
@@ -55,6 +95,15 @@ exports[`function.ts format[babel-ts] 1`] = `
 Cause: Leading decorators must be attached to a class declaration. (4:0)"
 `;
 
+exports[`function.ts format[oxc-ts] 1`] = `
+"Unexpected token (4:1)
+  2 |
+  3 | @decorator()
+> 4 | function foo(      ){}
+    | ^^^^^^^^
+  5 |"
+`;
+
 exports[`function.ts format[typescript] 1`] = `
 "Decorators are not valid here. (3:1)
   1 | // https://github.com/typescript-eslint/typescript-eslint/pull/2375
@@ -66,6 +115,15 @@ exports[`function.ts format[typescript] 1`] = `
 Cause: Decorators are not valid here."
 `;
 
+exports[`function.ts format[yuku-ts] 1`] = `
+"Expected 'class' keyword, but found 'function' (4:1)
+  2 |
+  3 | @decorator()
+> 4 | function foo(      ){}
+    | ^^^^^^^^
+  5 |"
+`;
+
 exports[`interface.ts format[babel-ts] 1`] = `
 "Leading decorators must be attached to a class declaration. (5:1)
   3 |
@@ -77,6 +135,16 @@ exports[`interface.ts format[babel-ts] 1`] = `
 Cause: Leading decorators must be attached to a class declaration. (5:0)"
 `;
 
+exports[`interface.ts format[oxc-ts] 1`] = `
+"Unexpected token (5:1)
+  3 |
+  4 | @hello()
+> 5 | interface MyInterface {id: string;
+    | ^^^^^^^^^
+  6 | }
+  7 |"
+`;
+
 exports[`interface.ts format[typescript] 1`] = `
 "Decorators are not valid here. (4:1)
   2 | // #4632
@@ -89,6 +157,16 @@ exports[`interface.ts format[typescript] 1`] = `
 Cause: Decorators are not valid here."
 `;
 
+exports[`interface.ts format[yuku-ts] 1`] = `
+"Expected 'class' keyword, but found 'interface' (5:1)
+  3 |
+  4 | @hello()
+> 5 | interface MyInterface {id: string;
+    | ^^^^^^^^^
+  6 | }
+  7 |"
+`;
+
 exports[`issue-9102.ts format[babel-ts] 1`] = `
 "Leading decorators must be attached to a class declaration. (2:1)
   1 | @Decorator()
@@ -99,6 +177,15 @@ exports[`issue-9102.ts format[babel-ts] 1`] = `
 Cause: Leading decorators must be attached to a class declaration. (2:0)"
 `;
 
+exports[`issue-9102.ts format[oxc-ts] 1`] = `
+"Unexpected token (2:1)
+  1 | @Decorator()
+> 2 | type T = 1;
+    | ^^^^
+  3 | class C {}
+  4 |"
+`;
+
 exports[`issue-9102.ts format[typescript] 1`] = `
 "Decorators are not valid here. (1:1)
 > 1 | @Decorator()
@@ -108,3 +195,12 @@ exports[`issue-9102.ts format[typescript] 1`] = `
   4 |
 Cause: Decorators are not valid here."
 `;
+
+exports[`issue-9102.ts format[yuku-ts] 1`] = `
+"Expected 'class' keyword, but found 'type' (2:1)
+  1 | @Decorator()
+> 2 | type T = 1;
+    | ^^^^
+  3 | class C {}
+  4 |"
+`;

tests/format/typescript/_errors_/invalid-typescript-decorators/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);

tests/format/typescript/_errors_/jsx/__snapshots__/format.test.js.snap

@@ -28,3 +28,12 @@ exports[`invalid-jsx-1.tsx format[typescript] 1`] = `
   4 |
 Cause: Unexpected token. Did you mean \`{'>'}\` or \`>\`?"
 `;
+
+exports[`invalid-jsx-1.tsx format[yuku-ts] 1`] = `
+"Unexpected '>' in JSX text (3:45)
+  1 | // https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-9.html#-and--are-now-invalid-jsx-text-characters
+  2 |
+> 3 | let directions = <div>Navigate to: Menu Bar > Tools > Options</div>
+    |                                             ^
+  4 |"
+`;

tests/format/typescript/_errors_/jsx/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);

tests/format/typescript/_errors_/loop/__snapshots__/format.test.js.snap

@@ -20,6 +20,12 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: Only a single variable declaration is allowed in a 'for...of' statement."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected ';' after for-loop init, but found 'X' (1:13)
+> 1 | for (var of X);
+    |             ^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Unexpected token (1:15)
 > 1 | for (var of of);
@@ -40,6 +46,12 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: Only a single variable declaration is allowed in a 'for...of' statement."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Unexpected token ')' (1:15)
+> 1 | for (var of of);
+    |               ^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "Unexpected keyword 'in'. (1:10)
 > 1 | for (var in X);
@@ -59,3 +71,9 @@ exports[`snippet: #2 format[typescript] 1`] = `
     |      ^^^
 Cause: Only a single variable declaration is allowed in a 'for...in' statement."
 `;
+
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"'in' is reserved and cannot be used as a binding identifier (1:10)
+> 1 | for (var in X);
+    |          ^^"
+`;

tests/format/typescript/_errors_/loop/format.test.js

@@ -3,5 +3,5 @@ runFormatTest(
     importMeta: import.meta,
     snippets: ["for (var of X);", "for (var of of);", "for (var in X);"],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/mapped-type/__snapshots__/format.test.js.snap

@@ -31,3 +31,13 @@ exports[`mapped-type.ts format[typescript] 1`] = `
   5 |
 Cause: A mapped type may not declare properties or methods."
 `;
+
+exports[`mapped-type.ts format[yuku-ts] 1`] = `
+"Expected '}' to close a mapped type, but found 'extra_member' (3:3)
+  1 | type Mapped = {
+  2 |   [key in keyof O]: number;
+> 3 |   extra_member: should_not_allowed
+    |   ^^^^^^^^^^^^
+  4 | };
+  5 |"
+`;

tests/format/typescript/_errors_/mapped-type/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);

tests/format/typescript/_errors_/modifiers/format.test.js

@@ -152,5 +152,5 @@ runFormatTest(
       ]),
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/module-declaration/__snapshots__/format.test.js.snap

@@ -20,6 +20,12 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: Identifier expected."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected a semicolon or an implicit semicolon after a statement, but found '"a"' (1:11)
+> 1 | namespace "a" {}
+    |           ^^^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Missing semicolon. (1:10)
 > 1 | namespace "a";
@@ -40,6 +46,12 @@ exports[`snippet: #1 format[typescript] 1`] = `
 Cause: Identifier expected."
 `;
 
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Expected a semicolon or an implicit semicolon after a statement, but found '"a"' (1:11)
+> 1 | namespace "a";
+    |           ^^^"
+`;
+
 exports[`snippet: #2 format[babel-ts] 1`] = `
 "Unexpected token, expected "{" (1:12)
 > 1 | namespace a;
@@ -59,3 +71,9 @@ exports[`snippet: #2 format[typescript] 1`] = `
     |            ^
 Cause: '{' expected."
 `;
+
+exports[`snippet: #2 format[yuku-ts] 1`] = `
+"A namespace declaration requires a body (1:1)
+> 1 | namespace a;
+    | ^^^^^^^^^^^"
+`;

tests/format/typescript/_errors_/module-declaration/format.test.js

@@ -3,5 +3,5 @@ runFormatTest(
     importMeta: import.meta,
     snippets: ['namespace "a" {}', 'namespace "a";', "namespace a;"],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/tuple/__snapshots__/format.test.js.snap

@@ -1,12 +1,5 @@
 // Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
-exports[`snippet: #0 format 1`] = `
-"Type parameters cannot appear on a constructor declaration. (1:24)
-> 1 | class A { 'constructor'<a>() {} }
-    |                        ^
-Cause: Type parameters cannot appear on a constructor declaration. (1:23)"
-`;
-
 exports[`snippet: #0 format[babel-ts] 1`] = `
 "Tuple members must be labeled with a simple identifier. (1:11)
 > 1 | type T = [x.y: A];
@@ -21,6 +14,13 @@ exports[`snippet: #0 format[babel-ts] 2`] = `
 Cause: A required element cannot follow an optional element. (1:17)"
 `;
 
+exports[`snippet: #0 format[babel-ts] 3`] = `
+"Type parameters cannot appear on a constructor declaration. (1:24)
+> 1 | class A { 'constructor'<a>() {} }
+    |                        ^
+Cause: Type parameters cannot appear on a constructor declaration. (1:23)"
+`;
+
 exports[`snippet: #0 format[oxc-ts] 1`] = `
 "Expected \`,\` or \`]\` but found \`:\` (1:14)
 > 1 | type T = [x.y: A];
@@ -40,6 +40,24 @@ exports[`snippet: #0 format[typescript] 1`] = `
 Cause: ',' expected."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"Expected ']' to close a tuple type, but found ':' (1:14)
+> 1 | type T = [x.y: A];
+    |              ^"
+`;
+
+exports[`snippet: #0 format[yuku-ts] 2`] = `
+"A required element cannot follow an optional element (1:18)
+> 1 | type T = [x?: A, y: B];
+    |                  ^^^^"
+`;
+
+exports[`snippet: #0 format[yuku-ts] 3`] = `
+"Type parameters cannot appear on a constructor declaration (1:24)
+> 1 | class A { 'constructor'<a>() {} }
+    |                        ^^^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "Tuple members must be labeled with a simple identifier. (1:11)
 > 1 | type T = [x<y>: A];
@@ -72,3 +90,15 @@ exports[`snippet: #1 format[typescript] 1`] = `
     |               ^
 Cause: ',' expected."
 `;
+
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"Expected ']' to close a tuple type, but found ':' (1:15)
+> 1 | type T = [x<y>: A];
+    |               ^"
+`;
+
+exports[`snippet: #1 format[yuku-ts] 2`] = `
+"Type parameters cannot appear on a constructor declaration (1:22)
+> 1 | class A { constructor<a>() {} }
+    |                      ^^^"
+`;

tests/format/typescript/_errors_/tuple/format.test.js

@@ -8,7 +8,7 @@ runFormatTest(
       "type T = [x<y>: A];",
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );
 
 runFormatTest(
@@ -25,6 +25,7 @@ runFormatTest(
     // "typescript",
     "babel-ts",
     "oxc-ts",
+    "yuku-ts",
   ],
 );
 
@@ -40,5 +41,6 @@ runFormatTest(
     // "typescript",
     "babel-ts",
     // "oxc-ts",
+    "yuku-ts",
   ],
 );

tests/format/typescript/_errors_/type-only-import/__snapshots__/format.test.js.snap

@@ -33,6 +33,18 @@ exports[`snippet: #0 format[typescript] 2`] = `
 Cause: A type-only import can specify a default import or named bindings, but not both."
 `;
 
+exports[`snippet: #0 format[yuku-ts] 1`] = `
+"A type-only import can specify a default import or named bindings, but not both (1:13)
+> 1 | import type foo, {} from "foo"
+    |             ^^^^^^^"
+`;
+
+exports[`snippet: #0 format[yuku-ts] 2`] = `
+"A type-only import can specify a default import or named bindings, but not both (1:13)
+> 1 | import type foo, {named} from "foo"
+    |             ^^^^^^^^^^^^"
+`;
+
 exports[`snippet: #1 format[babel-ts] 1`] = `
 "A type-only import can specify a default import or named bindings, but not both. (1:1)
 > 1 | import type foo, * as namespace from "foo"
@@ -52,3 +64,9 @@ exports[`snippet: #1 format[typescript] 1`] = `
     |        ^^^^^^^^^^^^^^^^^^^^^^^^
 Cause: A type-only import can specify a default import or named bindings, but not both."
 `;
+
+exports[`snippet: #1 format[yuku-ts] 1`] = `
+"A type-only import can specify a default import or named bindings, but not both (1:13)
+> 1 | import type foo, * as namespace from "foo"
+    |             ^^^^^^^^^^^^^^^^^^^"
+`;

tests/format/typescript/_errors_/type-only-import/format.test.js

@@ -8,6 +8,7 @@ runFormatTest(
     // `babel-ts` didn't reject
     // "babel-ts",
     "oxc-ts",
+    "yuku-ts",
   ],
 );
 runFormatTest(
@@ -18,5 +19,5 @@ runFormatTest(
       'import type foo, * as namespace from "foo"',
     ],
   },
-  ["typescript", "babel-ts", "oxc-ts"],
+  ["typescript", "babel-ts", "oxc-ts", "yuku-ts"],
 );

tests/format/typescript/_errors_/value-of-abstract-property/__snapshots__/format.test.js.snap

@@ -28,3 +28,12 @@ exports[`value-of-abstract-property.ts format[typescript] 1`] = `
   4 |
 Cause: Abstract property cannot have an initializer."
 `;
+
+exports[`value-of-abstract-property.ts format[yuku-ts] 1`] = `
+"An abstract property cannot have an initializer (2:19)
+  1 | abstract class Foo {
+> 2 |   abstract prop = 3;
+    |                   ^
+  3 | }
+  4 |"
+`;

tests/format/typescript/_errors_/value-of-abstract-property/format.test.js

@@ -1 +1 @@
-runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts"]);
+runFormatTest(import.meta, ["typescript", "babel-ts", "oxc-ts", "yuku-ts"]);