Add m-esr52 at 52.6.0

6 files changed, 447 insertions, 0 deletions

diff --git a/js/src/tests/ecma_2017/Expressions/browser.js b/js/src/tests/ecma_2017/Expressions/browser.js
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/js/src/tests/ecma_2017/Expressions/browser.js
diff --git a/js/src/tests/ecma_2017/Expressions/shell.js b/js/src/tests/ecma_2017/Expressions/shell.js
new file mode 100644
index 000000000..8b1378917
--- /dev/null
+++ b/js/src/tests/ecma_2017/Expressions/shell.js
@@ -0,0 +1 @@
+
diff --git a/js/src/tests/ecma_2017/Expressions/trailing_comma_arguments.js b/js/src/tests/ecma_2017/Expressions/trailing_comma_arguments.js
new file mode 100644
index 000000000..612fd46a1
--- /dev/null
+++ b/js/src/tests/ecma_2017/Expressions/trailing_comma_arguments.js
@@ -0,0 +1,85 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Trailing comma in Arguments production.
+
+// 12.3 Left-Hand-Side Expressions
+// Arguments[Yield]:
+//   ()
+//   ( ArgumentList[?Yield] )
+//   ( ArgumentList[?Yield] , )
+
+
+function argsLength() {
+    return {value: arguments.length};
+}
+function sum(...rest) {
+    return {value: rest.reduce((a, c) => a + c, 0)};
+}
+
+function call(f, argList) {
+    return eval(`(${f}(${argList})).value`);
+}
+
+function newCall(F, argList) {
+    return eval(`(new ${F}(${argList})).value`);
+}
+
+function superCall(superClass, argList) {
+    return eval(`(new class extends ${superClass} {
+        constructor() {
+            super(${argList});
+        }
+    }).value`);
+}
+
+// Ensure the correct number of arguments is passed.
+for (let type of [call, newCall, superCall]) {
+    let test = type.bind(null, "argsLength");
+
+    assertEq(test("10, "), 1);
+    assertEq(test("10, 20, "), 2);
+    assertEq(test("10, 20, 30, "), 3);
+    assertEq(test("10, 20, 30, 40, "), 4);
+
+    assertEq(test("...[10, 20], "), 2);
+    assertEq(test("...[10, 20], 30, "), 3);
+    assertEq(test("...[10, 20], ...[30], "), 3);
+}
+
+// Ensure the arguments themselves are passed correctly.
+for (let type of [call, newCall, superCall]) {
+    let test = type.bind(null, "sum");
+
+    assertEq(test("10, "), 10);
+    assertEq(test("10, 20, "), 30);
+    assertEq(test("10, 20, 30, "), 60);
+    assertEq(test("10, 20, 30, 40, "), 100);
+
+    assertEq(test("...[10, 20], "), 30);
+    assertEq(test("...[10, 20], 30, "), 60);
+    assertEq(test("...[10, 20], ...[30], "), 60);
+}
+
+// Error cases.
+for (let type of [call, newCall, superCall]) {
+    let test = type.bind(null, "f");
+
+    // Trailing comma in empty arguments list.
+    assertThrowsInstanceOf(() => test(","), SyntaxError);
+
+    // Leading comma.
+    assertThrowsInstanceOf(() => test(", a"), SyntaxError);
+    assertThrowsInstanceOf(() => test(", ...a"), SyntaxError);
+
+    // Multiple trailing comma.
+    assertThrowsInstanceOf(() => test("a, , "), SyntaxError);
+    assertThrowsInstanceOf(() => test("...a, , "), SyntaxError);
+
+    // Elision.
+    assertThrowsInstanceOf(() => test("a, , b"), SyntaxError);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);
diff --git a/js/src/tests/ecma_2017/Expressions/trailing_comma_arrow.js b/js/src/tests/ecma_2017/Expressions/trailing_comma_arrow.js
new file mode 100644
index 000000000..f36b476ef
--- /dev/null
+++ b/js/src/tests/ecma_2017/Expressions/trailing_comma_arrow.js
@@ -0,0 +1,108 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Trailing comma in CoverParenthesizedExpressionAndArrowParameterList production.
+
+// 12.2 Primary Expression
+// CoverParenthesizedExpressionAndArrowParameterList[Yield]:
+//   ( Expression[In, ?Yield] )
+//   ( Expression[In, ?Yield] , )
+//   ()
+//   ( ...BindingIdentifier[?Yield] )
+//   ( Expression[In, ?Yield] , ...BindingIdentifier[?Yield] )
+
+
+function arrow(argList, parameters = "", returnExpr = "") {
+    return eval(`
+        let fun = (${argList}) => {
+            return ${returnExpr};
+        }
+        fun(${parameters});
+    `);
+}
+
+function arrowConcise(argList, parameters = "", returnExpr = "null") {
+    return eval(`
+        let fun = (${argList}) => ${returnExpr};
+        fun(${parameters});
+    `);
+}
+
+const tests = [
+    arrow,
+    arrowConcise,
+];
+
+// Ensure parameters are passed correctly.
+for (let test of tests) {
+    assertEq(test("a, ", "10", "a"), 10);
+    assertEq(test("a, b, ", "10, 20", "a + b"), 30);
+    assertEq(test("a = 30, ", "", "a"), 30);
+    assertEq(test("a = 30, b = 40, ", "", "a + b"), 70);
+
+    assertEq(test("[a], ", "[10]", "a"), 10);
+    assertEq(test("[a], [b], ", "[10], [20]", "a + b"), 30);
+    assertEq(test("[a] = [30], ", "", "a"), 30);
+    assertEq(test("[a] = [30], [b] = [40], ", "", "a + b"), 70);
+
+    assertEq(test("{a}, ", "{a: 10}", "a"), 10);
+    assertEq(test("{a}, {b}, ", "{a: 10}, {b: 20}", "a + b"), 30);
+    assertEq(test("{a} = {a: 30}, ", "", "a"), 30);
+    assertEq(test("{a} = {a: 30}, {b} = {b: 40}, ", "", "a + b"), 70);
+}
+
+// Ensure function length doesn't change.
+for (let test of tests) {
+    assertEq(test("a, ", "", "fun.length"), 1);
+    assertEq(test("a, b, ", "", "fun.length"), 2);
+
+    assertEq(test("[a], ", "[]", "fun.length"), 1);
+    assertEq(test("[a], [b], ", "[], []", "fun.length"), 2);
+
+    assertEq(test("{a}, ", "{}", "fun.length"), 1);
+    assertEq(test("{a}, {b}, ", "{}, {}", "fun.length"), 2);
+}
+
+for (let test of tests) {
+    // Trailing comma in empty parameters list.
+    assertThrowsInstanceOf(() => test(","), SyntaxError);
+
+    // Leading comma.
+    assertThrowsInstanceOf(() => test(", a"), SyntaxError);
+    assertThrowsInstanceOf(() => test(", ...a"), SyntaxError);
+
+    // Multiple trailing comma.
+    assertThrowsInstanceOf(() => test("a, , "), SyntaxError);
+    assertThrowsInstanceOf(() => test("a..., , "), SyntaxError);
+
+    // Trailing comma after rest parameter.
+    assertThrowsInstanceOf(() => test("...a, "), SyntaxError);
+    assertThrowsInstanceOf(() => test("a, ...b, "), SyntaxError);
+
+    // Elision.
+    assertThrowsInstanceOf(() => test("a, , b"), SyntaxError);
+}
+
+// Trailing comma in non-parenthesized arrow head.
+assertThrowsInstanceOf(() => eval("a, => {}"), SyntaxError);
+assertThrowsInstanceOf(() => eval("a, => null"), SyntaxError);
+
+// Parenthesized expression is not an arrow function expression.
+for (let trail of ["", ";", "\n => {}"]) {
+    assertThrowsInstanceOf(() => eval("(a,)" + trail), SyntaxError);
+    assertThrowsInstanceOf(() => eval("(a, b,)" + trail), SyntaxError);
+    assertThrowsInstanceOf(() => eval("(...a, )" + trail), SyntaxError);
+    assertThrowsInstanceOf(() => eval("(a, ...b, )" + trail), SyntaxError);
+    assertThrowsInstanceOf(() => eval("(a, , b)" + trail), SyntaxError);
+
+    assertThrowsInstanceOf(() => eval("(,)" + trail), SyntaxError);
+    assertThrowsInstanceOf(() => eval("(, a)" + trail), SyntaxError);
+    assertThrowsInstanceOf(() => eval("(, ...a)" + trail), SyntaxError);
+    assertThrowsInstanceOf(() => eval("(a, , )" + trail), SyntaxError);
+    assertThrowsInstanceOf(() => eval("(...a, , )" + trail), SyntaxError);
+}
+
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);
diff --git a/js/src/tests/ecma_2017/Expressions/trailing_comma_getter_setter.js b/js/src/tests/ecma_2017/Expressions/trailing_comma_getter_setter.js
new file mode 100644
index 000000000..258dd8df6
--- /dev/null
+++ b/js/src/tests/ecma_2017/Expressions/trailing_comma_getter_setter.js
@@ -0,0 +1,88 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Trailing comma is not allowed in getter and setter methods
+
+// 14.3 Method Definitions
+// MethodDefinition[Yield]:
+//   get PropertyName[?Yield] () { FunctionBody[~Yield] }
+//   set PropertyName[?Yield] ( PropertySetParameterList ) { FunctionBody[~Yield] }
+// PropertySetParameterList:
+//   FormalParameter[~Yield]
+
+function objectGetter(argList) {
+    return eval(`({
+        get m(${argList}) {}
+    })`);
+}
+
+function objectSetter(argList) {
+    return eval(`({
+        set m(${argList}) {}
+    })`);
+}
+
+function classGetter(argList) {
+    return eval(`(class {
+        get m(${argList}) {}
+    })`);
+}
+
+function classStaticGetter(argList) {
+    return eval(`(class {
+        static get m(${argList}) {}
+    })`);
+}
+
+function classSetter(argList) {
+    return eval(`(class {
+        set m(${argList}) {}
+    })`);
+}
+
+function classStaticSetter(argList) {
+    return eval(`(class {
+        static set m(${argList}) {}
+    })`);
+}
+
+const tests = [
+    objectGetter,
+    objectSetter,
+    classGetter,
+    classStaticGetter,
+    classSetter,
+    classStaticSetter,
+];
+
+for (let test of tests) {
+    // Trailing comma.
+    assertThrowsInstanceOf(() => test("a, "), SyntaxError);
+    assertThrowsInstanceOf(() => test("[], "), SyntaxError);
+    assertThrowsInstanceOf(() => test("{}, "), SyntaxError);
+    assertThrowsInstanceOf(() => test("a = 0, "), SyntaxError);
+    assertThrowsInstanceOf(() => test("[] = [], "), SyntaxError);
+    assertThrowsInstanceOf(() => test("{} = {}, "), SyntaxError);
+
+    // Trailing comma in empty parameters list.
+    assertThrowsInstanceOf(() => test(","), SyntaxError);
+
+    // Leading comma.
+    assertThrowsInstanceOf(() => test(", a"), SyntaxError);
+    assertThrowsInstanceOf(() => test(", ...a"), SyntaxError);
+
+    // Multiple trailing comma.
+    assertThrowsInstanceOf(() => test("a, ,"), SyntaxError);
+    assertThrowsInstanceOf(() => test("a..., ,"), SyntaxError);
+
+    // Trailing comma after rest parameter.
+    assertThrowsInstanceOf(() => test("...a ,"), SyntaxError);
+    assertThrowsInstanceOf(() => test("a, ...b, "), SyntaxError);
+
+    // Elision.
+    assertThrowsInstanceOf(() => test("a, , b"), SyntaxError);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);
diff --git a/js/src/tests/ecma_2017/Expressions/trailing_comma_parameters.js b/js/src/tests/ecma_2017/Expressions/trailing_comma_parameters.js
new file mode 100644
index 000000000..d0e756b86
--- /dev/null
+++ b/js/src/tests/ecma_2017/Expressions/trailing_comma_parameters.js
@@ -0,0 +1,165 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Trailing comma in functions and methods.
+
+// 14.1 Function Definitions
+// FunctionExpression:
+//   function BindingIdentifier[~Yield]opt ( FormalParameters[~Yield] ) { FunctionBody[~Yield] }
+
+// 14.3 Method Definitions
+// MethodDefinition[Yield]:
+//   PropertyName[?Yield] ( UniqueFormalParameters[~Yield] ) { FunctionBody[~Yield] }
+//   GeneratorMethod[?Yield]
+// PropertySetParameterList:
+//   FormalParameter[~Yield]
+
+// 14.4 Generator Function Definitions
+// GeneratorExpression:
+//   function * BindingIdentifier[+Yield]opt ( FormalParameters[+Yield] ) { GeneratorBody }
+// GeneratorMethod[Yield]:
+//   * PropertyName[?Yield] ( UniqueFormalParameters[+Yield] ) { GeneratorBody }
+
+
+function functionExpression(argList, parameters = "", returnExpr = "") {
+    return eval(`(function f(${argList}) {
+        var fun = f;
+        return ${returnExpr};
+    })(${parameters})`);
+}
+
+function generatorExpression(argList, parameters = "", returnExpr = "") {
+    return eval(`(function* f(${argList}) {
+        var fun = f;
+        return ${returnExpr};
+    })(${parameters}).next().value`);
+}
+
+function objectMethod(argList, parameters = "", returnExpr = "") {
+    return eval(`({
+        m(${argList}) {
+            var fun = this.m;
+            return ${returnExpr};
+        }
+    }).m(${parameters})`);
+}
+
+function objectGeneratorMethod(argList, parameters = "", returnExpr = "") {
+    return eval(`({
+        * m(${argList}) {
+            var fun = this.m;
+            return ${returnExpr};
+        }
+    }).m(${parameters}).next().value`);
+}
+
+function classMethod(argList, parameters = "", returnExpr = "") {
+    return eval(`(new class {
+        m(${argList}) {
+            var fun = this.m;
+            return ${returnExpr};
+        }
+    }).m(${parameters})`);
+}
+
+function classStaticMethod(argList, parameters = "", returnExpr = "") {
+    return eval(`(class {
+        static m(${argList}) {
+            var fun = this.m;
+            return ${returnExpr};
+        }
+    }).m(${parameters})`);
+}
+
+function classGeneratorMethod(argList, parameters = "", returnExpr = "") {
+    return eval(`(new class {
+        * m(${argList}) {
+            var fun = this.m;
+            return ${returnExpr};
+        }
+    }).m(${parameters}).next().value`);
+}
+
+function classStaticGeneratorMethod(argList, parameters = "", returnExpr = "") {
+    return eval(`(class {
+        static * m(${argList}) {
+            var fun = this.m;
+            return ${returnExpr};
+        }
+    }).m(${parameters}).next().value`);
+}
+
+function classConstructorMethod(argList, parameters = "", returnExpr = "null") {
+    return eval(`new (class {
+        constructor(${argList}) {
+            var fun = this.constructor;
+            return { value: ${returnExpr} };
+        }
+    })(${parameters}).value`);
+}
+
+const tests = [
+    functionExpression,
+    generatorExpression,
+    objectMethod,
+    objectGeneratorMethod,
+    classMethod,
+    classStaticMethod,
+    classGeneratorMethod,
+    classStaticGeneratorMethod,
+    classConstructorMethod,
+];
+
+// Ensure parameters are passed correctly.
+for (let test of tests) {
+    assertEq(test("a, ", "10", "a"), 10);
+    assertEq(test("a, b, ", "10, 20", "a + b"), 30);
+    assertEq(test("a = 30, ", "", "a"), 30);
+    assertEq(test("a = 30, b = 40, ", "", "a + b"), 70);
+
+    assertEq(test("[a], ", "[10]", "a"), 10);
+    assertEq(test("[a], [b], ", "[10], [20]", "a + b"), 30);
+    assertEq(test("[a] = [30], ", "", "a"), 30);
+    assertEq(test("[a] = [30], [b] = [40], ", "", "a + b"), 70);
+
+    assertEq(test("{a}, ", "{a: 10}", "a"), 10);
+    assertEq(test("{a}, {b}, ", "{a: 10}, {b: 20}", "a + b"), 30);
+    assertEq(test("{a} = {a: 30}, ", "", "a"), 30);
+    assertEq(test("{a} = {a: 30}, {b} = {b: 40}, ", "", "a + b"), 70);
+}
+
+// Ensure function length doesn't change.
+for (let test of tests) {
+    assertEq(test("a, ", "", "fun.length"), 1);
+    assertEq(test("a, b, ", "", "fun.length"), 2);
+
+    assertEq(test("[a], ", "[]", "fun.length"), 1);
+    assertEq(test("[a], [b], ", "[], []", "fun.length"), 2);
+
+    assertEq(test("{a}, ", "{}", "fun.length"), 1);
+    assertEq(test("{a}, {b}, ", "{}, {}", "fun.length"), 2);
+}
+
+for (let test of tests) {
+    // Trailing comma in empty parameters list.
+    assertThrowsInstanceOf(() => test(","), SyntaxError);
+
+    // Leading comma.
+    assertThrowsInstanceOf(() => test(", a"), SyntaxError);
+    assertThrowsInstanceOf(() => test(", ...a"), SyntaxError);
+
+    // Multiple trailing comma.
+    assertThrowsInstanceOf(() => test("a, , "), SyntaxError);
+    assertThrowsInstanceOf(() => test("a..., , "), SyntaxError);
+
+    // Trailing comma after rest parameter.
+    assertThrowsInstanceOf(() => test("...a, "), SyntaxError);
+    assertThrowsInstanceOf(() => test("a, ...b, "), SyntaxError);
+
+    // Elision.
+    assertThrowsInstanceOf(() => test("a, , b"), SyntaxError);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);