Adding tests to verify private fields on Proxy Objects (#2099)

test/language/statements/class/elements/privatefield-on-proxy.js

@@ -0,0 +1,53 @@
+// Copyright (C) 2019 Caio Lima. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Sucessyfully get private reference without using [[Get]]
+esid: sec-getvalue
+info: |
+  GetValue(V)
+    ...
+    5. If IsPropertyReference(V), then
+      ...
+      b. If IsPrivateReference(V), then
+        i. Let env be the running execution context's PrivateNameEnvironment.
+        ii. Let field be ? ResolveBinding(GetReferencedName(V), env).
+        iii. Assert: field is a Private Name.
+        iv. Return ? PrivateFieldGet(field, base).
+      c. Return ? base.[[Get]](GetReferencedName(V), GetThisValue(V)).
+  PrivateFieldGet(P, O)
+    1. Assert: P is a Private Name value.
+    2. If O is not an object, throw a TypeError exception.
+    3. Let entry be PrivateFieldFind(P, O).
+    4. If entry is empty, throw a TypeError exception.
+    5. Return entry.[[PrivateFieldValue]].
+includes: [compareArray.js]
+features: [class, class-fields-private, Proxy]
+---*/
+
+let arr = [];
+
+class ProxyBase {
+  constructor() {
+    return new Proxy(this, {
+      get: function (obj, prop) {
+        arr.push(prop);
+        return obj[prop];
+      }
+    });
+  }
+}
+
+class Test extends ProxyBase {
+  #f = 3;
+  method() {
+    return this.#f;
+  }
+}
+
+let t = new Test();
+let r = t.method();
+assert.sameValue(r, 3);
+
+assert.compareArray(arr, ['method']);
+

test/language/statements/class/elements/privategetter-on-proxy.js

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+// Copyright (C) 2019 Caio Lima. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Successfully access private getter on Proxy objects without using [[Get]]
+esid: sec-getvalue
+info: |
+  GetValue(V)
+    ...
+    5. If IsPropertyReference(V), then
+      ...
+      b. If IsPrivateReference(V), then
+        i. Let env be the running execution context's PrivateNameEnvironment.
+        ii. Let field be ? ResolveBinding(GetReferencedName(V), env).
+        iii. Assert: field is a Private Name.
+        iv. Return ? PrivateFieldGet(field, base).
+      c. Return ? base.[[Get]](GetReferencedName(V), GetThisValue(V)).
+  PrivateFieldGet(P, O)
+    ...
+    4. Perform ? PrivateBrandCheck(O, P).
+    5. If P.[[Kind]] is "method",
+      ...
+    6. Else,
+      a. Assert: P.[[Kind]] is "accessor".
+      b. If P does not have a [[Get]] field, throw a TypeError exception.
+      c. Let getter be P.[[Get]].
+      d. Return ? Call(getter, O).
+includes: [compareArray.js]
+features: [class, class-methods-private, Proxy]
+---*/
+
+let arr = [];
+
+class ProxyBase {
+  constructor() {
+    return new Proxy(this, {
+      get: function (obj, prop) {
+        arr.push(prop);
+        return obj[prop];
+      }
+    });
+  }
+}
+
+class Test extends ProxyBase {
+  get #f() {
+    return 3;
+  }
+  method() {
+    return this.#f;
+  }
+}
+
+let t = new Test();
+let r = t.method();
+assert.sameValue(r, 3);
+
+assert.compareArray(arr, ['method']);
+

test/language/statements/class/elements/privatemethods-on-proxy.js

@@ -0,0 +1,55 @@
+// Copyright (C) 2019 Caio Lima. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Successfully access private method on Proxy objects without using [[Get]]
+esid: sec-getvalue
+info: |
+  GetValue(V)
+    ...
+    5. If IsPropertyReference(V), then
+      ...
+      b. If IsPrivateReference(V), then
+        i. Let env be the running execution context's PrivateNameEnvironment.
+        ii. Let field be ? ResolveBinding(GetReferencedName(V), env).
+        iii. Assert: field is a Private Name.
+        iv. Return ? PrivateFieldGet(field, base).
+      c. Return ? base.[[Get]](GetReferencedName(V), GetThisValue(V)).
+  PrivateFieldGet(P, O)
+    ...
+    4. Perform ? PrivateBrandCheck(O, P).
+    5. If P.[[Kind]] is "method",
+      a. Return P.[[Value]].
+      ...
+includes: [compareArray.js]
+features: [class, class-methods-private, Proxy]
+---*/
+
+let arr = [];
+
+class ProxyBase {
+  constructor() {
+    return new Proxy(this, {
+      get: function (obj, prop) {
+        arr.push(prop);
+        return obj[prop];
+      }
+    });
+  }
+}
+
+class Test extends ProxyBase {
+  #f() {
+    return 3;
+  }
+  method() {
+    return this.#f();
+  }
+}
+
+let t = new Test();
+let r = t.method();
+assert.sameValue(r, 3);
+
+assert.compareArray(arr, ['method']);
+