Add m-esr52 at 52.6.0

1 files changed, 56 insertions, 0 deletions

diff --git a/js/src/tests/ecma_5/strict/primitive-this-getter.js b/js/src/tests/ecma_5/strict/primitive-this-getter.js
new file mode 100644
index 000000000..55fd79d9d
--- /dev/null
+++ b/js/src/tests/ecma_5/strict/primitive-this-getter.js
@@ -0,0 +1,56 @@
+let primitives = [
+    10,
+    false,
+    "test",
+    Symbol()
+]
+
+let getter = "getter";
+let getter2 = "getter2";
+let key = "key";
+
+for (let value of primitives) {
+    let prototype = Object.getPrototypeOf(value);
+
+    // Strict getters receive a primitive this value.
+    Object.defineProperty(prototype, "getter", {get: function() {
+        "use strict";
+        assertEq(this, value);
+        return "getter";
+    }})
+
+    assertEq(value.getter, "getter");
+    assertEq(value[getter], "getter");
+
+    // The proxy's [[Get]] trap is also invoked with primitive receiver values.
+    let proxy = new Proxy({}, {
+        get(target, property, receiver) {
+            assertEq(property, "key");
+            assertEq(receiver, value);
+            return "get";
+        }
+    });
+
+    Object.setPrototypeOf(prototype, proxy);
+    assertEq(value.key, "get");
+    assertEq(value[key], "get");
+    assertEq(value.getter, "getter");
+    assertEq(value[getter], "getter");
+
+    // A getter still gets a primitive this value even after going through a proxy.
+    proxy = new Proxy({
+        get getter2() {
+            "use strict";
+            assertEq(this, value);
+            return "getter2";
+        }
+    }, {});
+
+    Object.setPrototypeOf(prototype, proxy);
+    assertEq(value.getter2, "getter2");
+    assertEq(value[getter2], "getter2");
+    assertEq(value.getter, "getter");
+    assertEq(value[getter], "getter");
+}
+
+reportCompare(true, true);