Add tests for class elements continued after a line terminator

src/class-elements/grammar-get-followed-by-name-on-next-line-without-parameters-error.case

@@ -0,0 +1,28 @@
+// Copyright (C) 2026 hexbinoct. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+desc: SyntaxError for a getter whose name is on the next line and that has no parameter list
+info: |
+  ClassElement :
+    MethodDefinition
+    static MethodDefinition
+    FieldDefinition ;
+    ;
+
+  MethodDefinition :
+    get ClassElementName ( ) { FunctionBody }
+
+  FieldDefinition :
+    ClassElementName Initializer _opt
+
+  The name after "get" is allowed by the getter production, so no semicolon is
+  inserted after "get", and the getter is missing its parameter list.
+
+template: syntax/invalid
+features: [class-fields-public]
+---*/
+
+//- elements
+get
+x

test/language/expressions/class/elements/syntax/early-errors/grammar-get-followed-by-name-on-next-line-without-parameters-error.js

@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-get-followed-by-name-on-next-line-without-parameters-error.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: SyntaxError for a getter whose name is on the next line and that has no parameter list (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName ( ) { FunctionBody }
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    The name after "get" is allowed by the getter production, so no semicolon is
+    inserted after "get", and the getter is missing its parameter list.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  get
+  x
+};

test/language/statements/class/elements/syntax/early-errors/grammar-get-followed-by-name-on-next-line-without-parameters-error.js

@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-get-followed-by-name-on-next-line-without-parameters-error.case
+// - src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
+/*---
+description: SyntaxError for a getter whose name is on the next line and that has no parameter list (class declaration)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName ( ) { FunctionBody }
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    The name after "get" is allowed by the getter production, so no semicolon is
+    inserted after "get", and the getter is missing its parameter list.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+class C {
+  get
+  x
+}

test/language/statements/class/elements/syntax/valid/grammar-get-followed-by-name-on-next-line.js

@@ -0,0 +1,62 @@
+// Copyright (C) 2026 hexbinoct. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: A line terminator between "get" and the name does not end a field named "get"
+esid: prod-ClassElement
+features: [class, class-methods-private]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName ( ) { FunctionBody }
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    The getter production has no [no LineTerminator here] restriction, so the
+    name on the next line is allowed and no semicolon is inserted after "get".
+---*/
+
+class A {
+  get
+  a() { return "a"; }
+}
+
+class B {
+  static get
+  b() { return "b"; }
+}
+
+class C {
+  get
+  ["c"]() { return "c"; }
+}
+
+class D {
+  get
+  #d() { return "d"; }
+  read() { return this.#d; }
+}
+
+var a = new A();
+assert.sameValue(typeof Object.getOwnPropertyDescriptor(A.prototype, "a").get, "function", "(A) a is a getter on the prototype");
+assert.sameValue(a.a, "a", "(A) the getter returns its value");
+assert.sameValue(Object.prototype.hasOwnProperty.call(a, "get"), false, "(A) there is no field named get");
+
+assert.sameValue(typeof Object.getOwnPropertyDescriptor(B, "b").get, "function", "(B) b is a static getter");
+assert.sameValue(B.b, "b", "(B) the static getter returns its value");
+assert.sameValue(Object.prototype.hasOwnProperty.call(B, "get"), false, "(B) there is no static field named get");
+
+var c = new C();
+assert.sameValue(typeof Object.getOwnPropertyDescriptor(C.prototype, "c").get, "function", "(C) c is a getter on the prototype");
+assert.sameValue(c.c, "c", "(C) the getter returns its value");
+assert.sameValue(Object.prototype.hasOwnProperty.call(c, "get"), false, "(C) there is no field named get");
+
+var d = new D();
+assert.sameValue(d.read(), "d", "(D) #d is a private getter");
+assert.sameValue(Object.prototype.hasOwnProperty.call(d, "get"), false, "(D) there is no field named get");

test/language/statements/class/elements/syntax/valid/grammar-method-name-followed-by-parameters-on-next-line.js

@@ -0,0 +1,40 @@
+// Copyright (C) 2026 hexbinoct. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: A line terminator between a method name and its parameters does not end a field
+esid: prod-ClassElement
+features: [class]
+info: |
+    ClassElement :
+      MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    A "(" after a ClassElementName is allowed by MethodDefinition, so no
+    semicolon is inserted before it, even after a line terminator.
+---*/
+
+class A {
+  m
+  () { return "m"; }
+
+  get
+  () { return "get"; }
+
+  set
+  (v) { return "set" + v; }
+}
+
+var a = new A();
+assert.sameValue(a.m(), "m", "m is a method on the prototype");
+assert.sameValue(a.get(), "get", "get is a method on the prototype");
+assert.sameValue(a.set(1), "set1", "set is a method on the prototype");
+assert.sameValue(Object.prototype.hasOwnProperty.call(a, "m"), false, "there is no field named m");
+assert.sameValue(Object.prototype.hasOwnProperty.call(a, "get"), false, "there is no field named get");
+assert.sameValue(Object.prototype.hasOwnProperty.call(a, "set"), false, "there is no field named set");

test/language/statements/class/elements/syntax/valid/grammar-method-named-static.js

@@ -0,0 +1,39 @@
+// Copyright (C) 2026 hexbinoct. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: A method can be named "static", with or without the static modifier
+esid: prod-ClassElement
+features: [class]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+
+    "static" is an IdentifierName, so it can be the name of a method. A "("
+    after it, on the same line or the next, continues that method definition.
+---*/
+
+class A {
+  static() { return "prototype"; }
+  static static() { return "constructor"; }
+}
+
+class B {
+  static
+  () { return "next line"; }
+}
+
+assert.sameValue(A.prototype.static(), "prototype", "(A) static is a method on the prototype");
+assert.sameValue(A.static(), "constructor", "(A) static is also a static method");
+assert.sameValue(new B().static(), "next line", "(B) static is a method on the prototype");
+assert.sameValue(Object.prototype.hasOwnProperty.call(B, "static"), false, "(B) static is not a static method");
+assert.sameValue(Object.prototype.hasOwnProperty.call(new B(), "static"), false, "(B) there is no field named static");

test/language/statements/class/elements/syntax/valid/grammar-set-followed-by-name-on-next-line.js

@@ -0,0 +1,68 @@
+// Copyright (C) 2026 hexbinoct. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: A line terminator between "set" and the name does not end a field named "set"
+esid: prod-ClassElement
+features: [class, class-methods-private]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    The setter production has no [no LineTerminator here] restriction, so the
+    name on the next line is allowed and no semicolon is inserted after "set".
+---*/
+
+var stored;
+
+class A {
+  set
+  a(v) { stored = "a" + v; }
+}
+
+class B {
+  static set
+  b(v) { stored = "b" + v; }
+}
+
+class C {
+  set
+  ["c"](v) { stored = "c" + v; }
+}
+
+class D {
+  set
+  #d(v) { stored = "d" + v; }
+  write(v) { this.#d = v; }
+}
+
+var a = new A();
+assert.sameValue(typeof Object.getOwnPropertyDescriptor(A.prototype, "a").set, "function", "(A) a is a setter on the prototype");
+a.a = 1;
+assert.sameValue(stored, "a1", "(A) the setter is called");
+assert.sameValue(Object.prototype.hasOwnProperty.call(a, "set"), false, "(A) there is no field named set");
+
+assert.sameValue(typeof Object.getOwnPropertyDescriptor(B, "b").set, "function", "(B) b is a static setter");
+B.b = 2;
+assert.sameValue(stored, "b2", "(B) the static setter is called");
+assert.sameValue(Object.prototype.hasOwnProperty.call(B, "set"), false, "(B) there is no static field named set");
+
+var c = new C();
+assert.sameValue(typeof Object.getOwnPropertyDescriptor(C.prototype, "c").set, "function", "(C) c is a setter on the prototype");
+c.c = 3;
+assert.sameValue(stored, "c3", "(C) the setter is called");
+assert.sameValue(Object.prototype.hasOwnProperty.call(c, "set"), false, "(C) there is no field named set");
+
+var d = new D();
+d.write(4);
+assert.sameValue(stored, "d4", "(D) #d is a private setter");
+assert.sameValue(Object.prototype.hasOwnProperty.call(d, "set"), false, "(D) there is no field named set");

test/language/statements/class/elements/syntax/valid/grammar-static-followed-by-field-on-next-line.js

@@ -0,0 +1,38 @@
+// Copyright (C) 2026 hexbinoct. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: A line terminator after "static" does not end a field named "static" when a field name follows
+esid: prod-ClassElement
+features: [class, class-static-fields-public]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    The "static" FieldDefinition production has no [no LineTerminator here]
+    restriction, so a field name on the next line is allowed and no semicolon is
+    inserted after "static".
+---*/
+
+class A {
+  static
+  x = 1;
+
+  static
+  y
+}
+
+assert.sameValue(A.x, 1, "x is a static field");
+assert.sameValue(Object.prototype.hasOwnProperty.call(A, "y"), true, "y is a static field");
+assert.sameValue(A.y, undefined, "y has no initializer");
+
+var a = new A();
+assert.sameValue(Object.prototype.hasOwnProperty.call(a, "static"), false, "there is no field named static");
+assert.sameValue(Object.prototype.hasOwnProperty.call(a, "x"), false, "x is not an instance field");
+assert.sameValue(Object.prototype.hasOwnProperty.call(a, "y"), false, "y is not an instance field");