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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/global/cross-global-implicit-this.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/global/cross-global-implicit-this.js | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/js/src/tests/non262/global/cross-global-implicit-this.js b/js/src/tests/non262/global/cross-global-implicit-this.js new file mode 100644 index 0000000000..90c6e8a958 --- /dev/null +++ b/js/src/tests/non262/global/cross-global-implicit-this.js @@ -0,0 +1,84 @@ +// |reftest| skip-if(!xulRuntime.shell) -- needs evaluate() +// Any copyright is dedicated to the Public Domain. +// http://creativecommons.org/licenses/publicdomain/ + +//----------------------------------------------------------------------------- +var BUGNUMBER = 671947; +var summary = "Unqualified function invocation uses the global object of the called property as |this|"; + +print(BUGNUMBER + ": " + summary); + +/************** + * BEGIN TEST * + **************/ + +this.name = "o"; + +function f() { + return this ? this.name : "t"; +} +function g() { + "use strict"; + return this ? this.name : "u"; +} +function h() { + return this ? this.name : "v"; +} + +var sb = newGlobal(); +sb.parent = this; +sb.name = "i"; +sb.f = f; +sb.g = g; + +sb.evaluate( + '\n' + + ' this.a = { name: "a", f: f, g: g };\n' + + ' this.b = { name: "b", f: f, g: g };\n' + + ' Object.defineProperty(this, "h", { get: (function(){ return parent.h; })});\n' + + ' Object.defineProperty(a, "h", { get: (function(){ return parent.h; })});\n' + + ' Object.defineProperty(b, "h", { get: (function(){ return parent.h; })});\n' + + ''); + + +// Three of the first four cases pass undefined (promoted inside the callee to +// the callee's global object). a.f() is the one exception, which passes the +// base, a, as the this object. +assertEq(sb.evaluate('(function(){return f();})();'), "o"); +assertEq(sb.evaluate('(function(){return (1,f)();})();'), "o"); +assertEq(sb.evaluate('(function(){return a.f();})();'), "a"); +assertEq(sb.evaluate('(function(){return eval("f()");})();'), "o"); + +// Same cases as above, but wrapped in a with. The first and last of these cases +// pass b, the object scoped by the with, as the this value. a.f() still passes +// the explicit base, a. (1,f)() is a little tricksier - this passes undefined +// (promoted to the callee global object) since the comma operator calls +// GetValue on the reference (see ES5 11.14.). +assertEq(sb.evaluate('(function(){with(b){ return (function(){ return f();})(); }})();'), "b"); +assertEq(sb.evaluate('(function(){with(b){ return (function(){ return (1,f)();})(); }})();'), "o"); +assertEq(sb.evaluate('(function(){with(b){ return (function(){ return a.f();})(); }})();'), "a"); +assertEq(sb.evaluate('(function(){with(b){ return (function(){ return eval("f()");})(); }})();'), "b"); + +// Same tests as above, but with a strict callee. We expect the same results, +// except undefined this is not replaced with the global object. +assertEq(sb.evaluate('(function(){return g();})();'), "u"); +assertEq(sb.evaluate('(function(){return (1,g)();})();'), "u"); +assertEq(sb.evaluate('(function(){return a.g();})();'), "a"); +assertEq(sb.evaluate('(function(){return eval("g()");})();'), "u"); +assertEq(sb.evaluate('(function(){with(b){ return g(); }})();'), "b"); +assertEq(sb.evaluate('(function(){with(b){ return (1,g)(); }})();'), "u"); +assertEq(sb.evaluate('(function(){with(b){ return a.g(); }})();'), "a"); +assertEq(sb.evaluate('(function(){with(b){ return (function(){ return eval("g()");})(); }})();'), "b"); + +/* Same as the first set, but h is a getter property. */ +assertEq(sb.evaluate('(function(){return h();})();'), "o"); +assertEq(sb.evaluate('(function(){return (1,h)();})();'), "o"); +assertEq(sb.evaluate('(function(){return a.h();})();'), "a"); +assertEq(sb.evaluate('(function(){return eval("h()");})();'), "o"); +assertEq(sb.evaluate('(function(){with(b){ return h(); }})();'), "b"); +assertEq(sb.evaluate('(function(){with(b){ return (1,h)(); }})();'), "o"); +assertEq(sb.evaluate('(function(){with(b){ return a.h(); }})();'), "a"); +assertEq(sb.evaluate('(function(){with(b){ return (function(){ return eval("h()");})(); }})();'), "b"); + +if (typeof reportCompare === "function"); + reportCompare(true, true); |