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-rw-r--r--js/src/tests/non262/reflect-parse/destructuring-function-parameters.js45
1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/non262/reflect-parse/destructuring-function-parameters.js b/js/src/tests/non262/reflect-parse/destructuring-function-parameters.js
new file mode 100644
index 0000000000..6b3a777379
--- /dev/null
+++ b/js/src/tests/non262/reflect-parse/destructuring-function-parameters.js
@@ -0,0 +1,45 @@
+// |reftest| slow skip-if(!xulRuntime.shell)
+function test() {
+
+function testParamPatternCombinations(makePattSrc, makePattPatt) {
+ var pattSrcs = makePatternCombinations(n => ("x" + n), makePattSrc);
+ var pattPatts = makePatternCombinations(n => (ident("x" + n)), makePattPatt);
+
+ for (var i = 0; i < pattSrcs.length; i++) {
+ function makeSrc(body) {
+ return "(function(" + pattSrcs[i].join(",") + ") " + body + ")";
+ }
+ function makePatt(body) {
+ return funExpr(null, pattPatts[i], body);
+ }
+
+ // no upvars, block body
+ assertExpr(makeSrc("{ }"), makePatt(blockStmt([])));
+ // upvars, block body
+ assertExpr(makeSrc("{ return [x1,x2,x3,x4,x5]; }"),
+ makePatt(blockStmt([returnStmt(arrExpr([ident("x1"), ident("x2"), ident("x3"), ident("x4"), ident("x5")]))])));
+ }
+}
+
+testParamPatternCombinations(n => ("{a" + n + ":x" + n + "," + "b" + n + ":y" + n + "," + "c" + n + ":z" + n + "}"),
+ n => (objPatt([assignProp("a" + n, ident("x" + n)),
+ assignProp("b" + n, ident("y" + n)),
+ assignProp("c" + n, ident("z" + n))])));
+
+testParamPatternCombinations(n => ("{a" + n + ":x" + n + " = 10," + "b" + n + ":y" + n + " = 10," + "c" + n + ":z" + n + " = 10}"),
+ n => (objPatt([assignProp("a" + n, ident("x" + n), lit(10)),
+ assignProp("b" + n, ident("y" + n), lit(10)),
+ assignProp("c" + n, ident("z" + n), lit(10))])));
+
+testParamPatternCombinations(n => ("[x" + n + "," + "y" + n + "," + "z" + n + "]"),
+ n => (arrPatt([assignElem("x" + n), assignElem("y" + n), assignElem("z" + n)])));
+
+testParamPatternCombinations(n => ("[a" + n + ", ..." + "b" + n + "]"),
+ n => (arrPatt([assignElem("a" + n), spread(ident("b" + n))])));
+
+testParamPatternCombinations(n => ("[a" + n + ", " + "b" + n + " = 10]"),
+ n => (arrPatt([assignElem("a" + n), assignElem("b" + n, lit(10))])));
+
+}
+
+runtest(test);