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support optional chaining operator (#4899)

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This commit is contained in:
Alex Lam S.L
2021-05-03 03:08:29 +01:00
committed by GitHub
parent 203f4b7ad9
commit f0de9a8b5d
12 changed files with 353 additions and 71 deletions
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24
test/mocha/cli.js
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@@ -427,16 +427,30 @@ describe("bin/uglifyjs", function() {
done();
});
});
it("Should throw syntax error (++null)", function(done) {
it("Should throw syntax error (null = 4)", function(done) {
var command = uglifyjscmd + " test/input/invalid/assign_4.js";
exec(command, function(err, stdout, stderr) {
assert.ok(err);
assert.strictEqual(stdout, "");
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
"Parse error at test/input/invalid/assign_4.js:1,0",
"++null",
"^",
"ERROR: Invalid use of ++ operator",
"Parse error at test/input/invalid/assign_4.js:1,23",
"console.log(4 || (null = 4));",
" ^",
"ERROR: Invalid assignment",
].join("\n"));
done();
});
});
it("Should throw syntax error ([]?.length ^= 5)", function(done) {
var command = uglifyjscmd + " test/input/invalid/assign_5.js";
exec(command, function(err, stdout, stderr) {
assert.ok(err);
assert.strictEqual(stdout, "");
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
"Parse error at test/input/invalid/assign_5.js:1,29",
"console.log(5 || ([]?.length ^= 5));",
" ^",
"ERROR: Invalid assignment",
].join("\n"));
done();
});