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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/reflect-parse/newTarget.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/reflect-parse/newTarget.js | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/non262/reflect-parse/newTarget.js b/js/src/tests/non262/reflect-parse/newTarget.js new file mode 100644 index 0000000000..3db2c2726d --- /dev/null +++ b/js/src/tests/non262/reflect-parse/newTarget.js @@ -0,0 +1,42 @@ +// |reftest| skip-if(!xulRuntime.shell) +function testNewTarget() { + + // new.target is currently valid inside any non-arrow, non-generator function + assertInFunctionExpr("new.target", newTarget()); + + // even with gratuitous whitespace. + assertInFunctionExpr(`new. + target`, newTarget()); + + // invalid in top-level scripts + assertError("new.target", SyntaxError); + + // valid in arrow functions inside functions + assertInFunctionExpr("()=>new.target", arrowExpr([], newTarget())); + assertError("(() => new.target))", SyntaxError); + + // valid in generators, too! + assertStmt("function *foo() { new.target; }", genFunDecl("es6", ident("foo"), [], + blockStmt([exprStmt(newTarget())]))); + + // new.target is a member expression. You should be able to call, invoke, or + // access properties of it. + assertInFunctionExpr("new.target.foo", dotExpr(newTarget(), ident("foo"))); + assertInFunctionExpr("new.target[\"foo\"]", memExpr(newTarget(), literal("foo"))); + + assertInFunctionExpr("new.target()", callExpr(newTarget(), [])); + assertInFunctionExpr("new new.target()", newExpr(newTarget(), [])); + + // assignment to newTarget is an error + assertError("new.target = 4", SyntaxError); + + // only new.target is a valid production, no shorn names or other names + assertError("new.", SyntaxError); + assertError("new.foo", SyntaxError); + assertError("new.targe", SyntaxError); + + // obj.new.target is still a member expression + assertExpr("obj.new.target", dotExpr(dotExpr(ident("obj"), ident("new")), ident("target"))); +} + +runtest(testNewTarget); |