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-rw-r--r--js/src/tests/non262/Function/function-name-binding.js54
1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/non262/Function/function-name-binding.js b/js/src/tests/non262/Function/function-name-binding.js
new file mode 100644
index 0000000000..bdd6c131c0
--- /dev/null
+++ b/js/src/tests/non262/Function/function-name-binding.js
@@ -0,0 +1,54 @@
+var BUGNUMBER = 883377;
+var summary = "Anonymous function name should be set based on binding pattern";
+
+print(BUGNUMBER + ": " + summary);
+
+var exprs = [
+ ["function() {}", false],
+ ["function named() {}", true],
+ ["function*() {}", false],
+ ["function* named() {}", true],
+ ["async function() {}", false],
+ ["async function named() {}", true],
+ ["() => {}", false],
+ ["async () => {}", false],
+ ["class {}", false],
+ ["class named {}", true],
+];
+
+function testAssignmentProperty(expr, named) {
+ var f = eval(`(function({ prop1 = ${expr} }) { return prop1; })`);
+ assertEq(f({}).name, named ? "named" : "prop1");
+
+ eval(`
+ var { prop1 = ${expr} } = {};
+ assertEq(prop1.name, named ? "named" : "prop1");
+ `);
+}
+for (var [expr, named] of exprs) {
+ testAssignmentProperty(expr, named);
+}
+
+function testAssignmentElement(expr, named) {
+ var f = eval(`(function([elem1 = ${expr}]) { return elem1; })`);
+ assertEq(f([]).name, named ? "named" : "elem1");
+
+ eval(`
+ var [elem1 = ${expr}] = [];
+ assertEq(elem1.name, named ? "named" : "elem1");
+ `);
+}
+for (var [expr, named] of exprs) {
+ testAssignmentElement(expr, named);
+}
+
+function testSingleNameBinding(expr, named) {
+ var f = eval(`(function(param1 = ${expr}) { return param1; })`);
+ assertEq(f().name, named ? "named" : "param1");
+}
+for (var [expr, named] of exprs) {
+ testSingleNameBinding(expr, named);
+}
+
+if (typeof reportCompare === "function")
+ reportCompare(0, 0);