function-name-property.js

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var BUGNUMBER = 883377;

var summary = "Anonymous function name should be set based on property name";

print(BUGNUMBER + ": " + summary);

var fooSymbol = Symbol("foo");

var emptySymbol = Symbol("");

var undefSymbol = Symbol();

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 testPropertyDefinition(expr, named) {

    var obj = eval(`({

        prop: ${expr},

        "literal": ${expr},

        "": ${expr},

        5: ${expr},

        0.4: ${expr},

        [Symbol.iterator]: ${expr},

        [fooSymbol]: ${expr},

        [emptySymbol]: ${expr},

        [undefSymbol]: ${expr},

        [/a/]: ${expr},

    })`);

    assertEq(obj.prop.name, named ? "named" : "prop");

    assertEq(obj["literal"].name, named ? "named" : "literal");

    assertEq(obj[""].name, named ? "named" : "");

    assertEq(obj[5].name, named ? "named" : "5");

    assertEq(obj[0.4].name, named ? "named" : "0.4");

    assertEq(obj[Symbol.iterator].name, named ? "named" : "[Symbol.iterator]");

    assertEq(obj[fooSymbol].name, named ? "named" : "[foo]");

    assertEq(obj[emptySymbol].name, named ? "named" : "[]");

    assertEq(obj[undefSymbol].name, named ? "named" : "");

    assertEq(obj[/a/].name, named ? "named" : "/a/");

    // Not applicable cases: __proto__.

    obj = {

        __proto__: function() {}

};

    assertEq(obj.__proto__.name, "");

for (var [expr, named] of exprs) {

    testPropertyDefinition(expr, named);

if (typeof reportCompare === "function")

    reportCompare(0, 0);