Add m-esr52 at 52.6.0

1 files changed, 319 insertions, 0 deletions

diff --git a/js/src/tests/ecma_6/Expressions/destructuring-array-done.js b/js/src/tests/ecma_6/Expressions/destructuring-array-done.js
new file mode 100644
index 000000000..f2c7e9410
--- /dev/null
+++ b/js/src/tests/ecma_6/Expressions/destructuring-array-done.js
@@ -0,0 +1,319 @@
+var BUGNUMBER = 1184922;
+var summary = "iterator.next() should not be called when after iterator completes";
+
+print(BUGNUMBER + ": " + summary);
+
+var log;
+function reset() {
+    log = "";
+}
+var obj = new Proxy({}, {
+    set(that, name, value) {
+        var v;
+        if (value instanceof Function || value instanceof RegExp)
+            v = value.toString();
+        else
+            v = JSON.stringify(value);
+        log += "set:" + name + "=" + v + ",";
+    }
+});
+function createIterable(n) {
+    return {
+        i: 0,
+        [Symbol.iterator]() {
+            return this;
+        },
+        next() {
+            log += "next,";
+            this.i++;
+            if (this.i <= n)
+                return {value: this.i, done: false};
+            return {value: 0, done: true};
+        }
+    };
+}
+
+// Simple pattern.
+
+reset();
+[obj.a, obj.b, obj.c] = createIterable(0);
+assertEq(log,
+         "next," +
+         "set:a=undefined," +
+         "set:b=undefined," +
+         "set:c=undefined,");
+
+reset();
+[obj.a, obj.b, obj.c] = createIterable(1);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=undefined," +
+         "set:c=undefined,");
+
+reset();
+[obj.a, obj.b, obj.c] = createIterable(2);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=2," +
+         "next," +
+         "set:c=undefined,");
+
+reset();
+[obj.a, obj.b, obj.c] = createIterable(3);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=2," +
+         "next," +
+         "set:c=3,");
+
+// Elision.
+
+reset();
+[obj.a, , obj.b, , , obj.c, ,] = createIterable(0);
+assertEq(log,
+         "next," +
+         "set:a=undefined," +
+         "set:b=undefined," +
+         "set:c=undefined,");
+
+reset();
+[obj.a, , obj.b, , , obj.c, ,] = createIterable(1);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=undefined," +
+         "set:c=undefined,");
+
+reset();
+[obj.a, , obj.b, , , obj.c, ,] = createIterable(2);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "next," +
+         "set:b=undefined," +
+         "set:c=undefined,");
+
+reset();
+[obj.a, , obj.b, , , obj.c, ,] = createIterable(3);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "next," +
+         "set:b=3," +
+         "next," +
+         "set:c=undefined,");
+
+reset();
+[obj.a, , obj.b, , , obj.c, ,] = createIterable(4);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "next," +
+         "set:b=3," +
+         "next," +
+         "next," +
+         "set:c=undefined,");
+
+reset();
+[obj.a, , obj.b, , , obj.c, ,] = createIterable(5);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "next," +
+         "set:b=3," +
+         "next," +
+         "next," +
+         "next," +
+         "set:c=undefined,");
+
+reset();
+[obj.a, , obj.b, , , obj.c, ,] = createIterable(6);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "next," +
+         "set:b=3," +
+         "next," +
+         "next," +
+         "next," +
+         "set:c=6," +
+         "next,");
+
+reset();
+[obj.a, , obj.b, , , obj.c, ,] = createIterable(7);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "next," +
+         "set:b=3," +
+         "next," +
+         "next," +
+         "next," +
+         "set:c=6," +
+         "next,");
+
+// Rest.
+
+reset();
+[...obj.r] = createIterable(0);
+assertEq(log,
+         "next," +
+         "set:r=[],");
+
+reset();
+[...obj.r] = createIterable(1);
+assertEq(log,
+         "next," +
+         "next," +
+         "set:r=[1],");
+
+reset();
+[obj.a, ...obj.r] = createIterable(0);
+assertEq(log,
+         "next," +
+         "set:a=undefined," +
+         "set:r=[],");
+
+reset();
+[obj.a, ...obj.r] = createIterable(1);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:r=[],");
+
+reset();
+[obj.a, ...obj.r] = createIterable(2);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "next," +
+         "set:r=[2],");
+
+reset();
+[obj.a, obj.b, ...obj.r] = createIterable(0);
+assertEq(log,
+         "next," +
+         "set:a=undefined," +
+         "set:b=undefined," +
+         "set:r=[],");
+
+reset();
+[obj.a, obj.b, ...obj.r] = createIterable(1);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=undefined," +
+         "set:r=[],");
+
+reset();
+[obj.a, obj.b, ...obj.r] = createIterable(2);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=2," +
+         "next," +
+         "set:r=[],");
+
+reset();
+[obj.a, obj.b, ...obj.r] = createIterable(3);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=2," +
+         "next," +
+         "next," +
+         "set:r=[3],");
+
+// Rest and elision.
+
+reset();
+[, ...obj.r] = createIterable(0);
+assertEq(log,
+         "next," +
+         "set:r=[],");
+
+reset();
+[, ...obj.r] = createIterable(1);
+assertEq(log,
+         "next," +
+         "next," +
+         "set:r=[],");
+
+reset();
+[, ...obj.r] = createIterable(2);
+assertEq(log,
+         "next," +
+         "next," +
+         "next," +
+         "set:r=[2],");
+
+reset();
+[obj.a, obj.b, , ...obj.r] = createIterable(0);
+assertEq(log,
+         "next," +
+         "set:a=undefined," +
+         "set:b=undefined," +
+         "set:r=[],");
+
+reset();
+[obj.a, obj.b, , ...obj.r] = createIterable(1);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=undefined," +
+         "set:r=[],");
+
+reset();
+[obj.a, obj.b, , ...obj.r] = createIterable(2);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=2," +
+         "next," +
+         "set:r=[],");
+
+reset();
+[obj.a, obj.b, , ...obj.r] = createIterable(3);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=2," +
+         "next," +
+         "next," +
+         "set:r=[],");
+
+reset();
+[obj.a, obj.b, , ...obj.r] = createIterable(4);
+assertEq(log,
+         "next," +
+         "set:a=1," +
+         "next," +
+         "set:b=2," +
+         "next," +
+         "next," +
+         "next," +
+         "set:r=[4],");
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);