diff options
Diffstat (limited to 'js/src/jit-test/tests/parser/bug-889628.js')
-rw-r--r-- | js/src/jit-test/tests/parser/bug-889628.js | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/parser/bug-889628.js b/js/src/jit-test/tests/parser/bug-889628.js new file mode 100644 index 0000000000..bb337c35d7 --- /dev/null +++ b/js/src/jit-test/tests/parser/bug-889628.js @@ -0,0 +1,33 @@ +// Destructuring assignment to eval or arguments in destructuring is a SyntaxError +// in strict mode + +load(libdir + "asserts.js"); + +var patterns = [ + "[_]", + "[a, b, _]", + "[[_]]", + "[[], [{}, [_]]]", + "{x:_}", + "{x:y, z:_}", + "{0:_}", + "{_}", + "[..._]" +]; + +for (var pattern of patterns) { + var stmt = pattern + " = obj"; + if (stmt[0] == "{") + stmt = "(" + stmt + ")"; + stmt += ";" + + // stmt is a legal statement... + Function(stmt); + + // ...but not if you replace _ with one of these two names. + for (var name of ["eval", "arguments"]) { + var s = stmt.replace("_", name); + Function(s); + assertThrowsInstanceOf(() => Function("'use strict'; " + s), SyntaxError); + } +} |