[import-defer] adding new test cases to validate evaluation trigger

src/import-defer/get-in-prototype.case

@@ -0,0 +1,18 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-module-namespace-exotic-objects-get-p-receiver
+desc: _ [[Get]] when namespace object is in the prototype chain
+info: |
+  [[Get]] ( _P_, _Receiver_ )
+    1. If IsSymbolLikeNamespaceKey(_P_, _O_), return ! OrdinaryGet(_O_, _P_, _Receiver_).
+    1. Let _exports_ be ? GetModuleExportsList(_O_).
+    1. ...
+
+template: trigger-on-possible-export
+---*/
+
+//- body
+const obj = Object.create(ns);
+obj[key];

src/import-defer/hasProperty-in-prototype.case

@@ -0,0 +1,18 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-module-namespace-exotic-objects-hasproperty-p
+desc: _ [[HasProperty]] when namespace object is in the prototype chain
+info: |
+  [[HasProperty]] ( _P_, _Receiver_ )
+    1. If IsSymbolLikeNamespaceKey(_P_, _O_), return ! OrdinaryGet(_O_, _P_, _Receiver_).
+    1. Let _exports_ be ? GetModuleExportsList(_O_).
+    1. ...
+
+template: trigger-on-possible-export
+---*/
+
+//- body
+const obj = Object.create(ns);
+key in obj;

src/import-defer/private-name-access.case

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+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-privateget
+desc: PrivateGet and PrivateSet in a namespace object
+info: |
+    PrivateGet ( O, P )
+      1. Let entry be PrivateElementFind(O, P).
+      1. If entry is EMPTY, throw a TypeError exception.
+      1. If entry.[[Kind]] is either FIELD or METHOD, then
+         a. Return entry.[[Value]].
+      ...
+
+    PrivateSet ( O, P, value )
+      1. Let entry be PrivateElementFind(O, P).
+      1. If entry is EMPTY, throw a TypeError exception.
+      1. If entry.[[Kind]] is FIELD, then
+         a. Set entry.[[Value]] to value.
+      ...
+
+template: ignore
+---*/
+
+//- body
+class Marker extends function (x) { return x } {
+  #mark = "bar";
+
+  static mark(obj) {
+    new Marker(obj);
+  }
+
+  static getMark(obj) {
+    return obj.#mark;
+  }
+}
+
+Marker.mark(ns);
+assert.sameValue(Marker.getMark(ns), "bar");

test/language/import/import-defer/evaluation-triggers/ignore-exported-then-get-in-prototype.js

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+// This file was procedurally generated from the following sources:
+// - src/import-defer/get-in-prototype.case
+// - src/import-defer/trigger-on-possible-export/then-exported.template
+/*---
+description: _ [[Get]] when namespace object is in the prototype chain (of 'then' when it is an exported name, does not trigger execution)
+esid: sec-module-namespace-exotic-objects
+features: [import-defer]
+flags: [generated, module]
+info: |
+    IsSymbolLikeNamespaceKey ( _P_, _O_ )
+      1. If _P_ is a Symbol, return *true*.
+      1. If _ns_.[[Deferred]] is *true* and _P_ is "then", return *true*.
+      1. Return *false*.
+
+    GetModuleExportsList ( _O_ )
+      1. If _O_.[[Deferred]] is *true*, then
+        1. Let _m_ be _O_.[[Module]].
+        1. If _m_ is a Cyclic Module Record, _m_.[[Status]] is not ~evaluated~, and ReadyForSyncExecution(_m_) is *false*, throw a *TypeError* exception.
+        1. Perform ? EvaluateSync(_m_).
+      1. Return _O_.[[Exports]].
+
+
+    [[Get]] ( _P_, _Receiver_ )
+      1. If IsSymbolLikeNamespaceKey(_P_, _O_), return ! OrdinaryGet(_O_, _P_, _Receiver_).
+      1. Let _exports_ be ? GetModuleExportsList(_O_).
+      1. ...
+
+---*/
+
+
+import "./setup_FIXTURE.js";
+
+import defer * as ns from "./dep-then_FIXTURE.js";
+
+assert.sameValue(globalThis.evaluations.length, 0, "import defer does not trigger evaluation");
+
+var key = "then";
+
+const obj = Object.create(ns);
+obj[key];
+
+assert.sameValue(globalThis.evaluations.length, 0, "It does not trigger evaluation");

test/language/import/import-defer/evaluation-triggers/ignore-exported-then-hasProperty-in-prototype.js

@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/import-defer/hasProperty-in-prototype.case
+// - src/import-defer/trigger-on-possible-export/then-exported.template
+/*---
+description: _ [[HasProperty]] when namespace object is in the prototype chain (of 'then' when it is an exported name, does not trigger execution)
+esid: sec-module-namespace-exotic-objects
+features: [import-defer]
+flags: [generated, module]
+info: |
+    IsSymbolLikeNamespaceKey ( _P_, _O_ )
+      1. If _P_ is a Symbol, return *true*.
+      1. If _ns_.[[Deferred]] is *true* and _P_ is "then", return *true*.
+      1. Return *false*.
+
+    GetModuleExportsList ( _O_ )
+      1. If _O_.[[Deferred]] is *true*, then
+        1. Let _m_ be _O_.[[Module]].
+        1. If _m_ is a Cyclic Module Record, _m_.[[Status]] is not ~evaluated~, and ReadyForSyncExecution(_m_) is *false*, throw a *TypeError* exception.
+        1. Perform ? EvaluateSync(_m_).
+      1. Return _O_.[[Exports]].
+
+
+    [[HasProperty]] ( _P_, _Receiver_ )
+      1. If IsSymbolLikeNamespaceKey(_P_, _O_), return ! OrdinaryGet(_O_, _P_, _Receiver_).
+      1. Let _exports_ be ? GetModuleExportsList(_O_).
+      1. ...
+
+---*/
+
+
+import "./setup_FIXTURE.js";
+
+import defer * as ns from "./dep-then_FIXTURE.js";
+
+assert.sameValue(globalThis.evaluations.length, 0, "import defer does not trigger evaluation");
+
+var key = "then";
+
+const obj = Object.create(ns);
+key in obj;
+
+assert.sameValue(globalThis.evaluations.length, 0, "It does not trigger evaluation");

test/language/import/import-defer/evaluation-triggers/ignore-not-exported-then-get-in-prototype.js

@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/import-defer/get-in-prototype.case
+// - src/import-defer/trigger-on-possible-export/then-not-exported.template
+/*---
+description: _ [[Get]] when namespace object is in the prototype chain (of 'then' when it is not an exported name, does not trigger execution)
+esid: sec-module-namespace-exotic-objects
+features: [import-defer]
+flags: [generated, module]
+info: |
+    IsSymbolLikeNamespaceKey ( _P_, _O_ )
+      1. If _P_ is a Symbol, return *true*.
+      1. If _ns_.[[Deferred]] is *true* and _P_ is "then", return *true*.
+      1. Return *false*.
+
+    GetModuleExportsList ( _O_ )
+      1. If _O_.[[Deferred]] is *true*, then
+        1. Let _m_ be _O_.[[Module]].
+        1. If _m_ is a Cyclic Module Record, _m_.[[Status]] is not ~evaluated~, and ReadyForSyncExecution(_m_) is *false*, throw a *TypeError* exception.
+        1. Perform ? EvaluateSync(_m_).
+      1. Return _O_.[[Exports]].
+
+
+    [[Get]] ( _P_, _Receiver_ )
+      1. If IsSymbolLikeNamespaceKey(_P_, _O_), return ! OrdinaryGet(_O_, _P_, _Receiver_).
+      1. Let _exports_ be ? GetModuleExportsList(_O_).
+      1. ...
+
+---*/
+
+
+import "./setup_FIXTURE.js";
+
+import defer * as ns from "./dep_FIXTURE.js";
+
+assert.sameValue(globalThis.evaluations.length, 0, "import defer does not trigger evaluation");
+
+var key = "then";
+
+const obj = Object.create(ns);
+obj[key];
+
+assert.sameValue(globalThis.evaluations.length, 0, "It does not trigger evaluation");

test/language/import/import-defer/evaluation-triggers/ignore-not-exported-then-hasProperty-in-prototype.js

@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/import-defer/hasProperty-in-prototype.case
+// - src/import-defer/trigger-on-possible-export/then-not-exported.template
+/*---
+description: _ [[HasProperty]] when namespace object is in the prototype chain (of 'then' when it is not an exported name, does not trigger execution)
+esid: sec-module-namespace-exotic-objects
+features: [import-defer]
+flags: [generated, module]
+info: |
+    IsSymbolLikeNamespaceKey ( _P_, _O_ )
+      1. If _P_ is a Symbol, return *true*.
+      1. If _ns_.[[Deferred]] is *true* and _P_ is "then", return *true*.
+      1. Return *false*.
+
+    GetModuleExportsList ( _O_ )
+      1. If _O_.[[Deferred]] is *true*, then
+        1. Let _m_ be _O_.[[Module]].
+        1. If _m_ is a Cyclic Module Record, _m_.[[Status]] is not ~evaluated~, and ReadyForSyncExecution(_m_) is *false*, throw a *TypeError* exception.
+        1. Perform ? EvaluateSync(_m_).
+      1. Return _O_.[[Exports]].
+
+
+    [[HasProperty]] ( _P_, _Receiver_ )
+      1. If IsSymbolLikeNamespaceKey(_P_, _O_), return ! OrdinaryGet(_O_, _P_, _Receiver_).
+      1. Let _exports_ be ? GetModuleExportsList(_O_).
+      1. ...
+
+---*/
+
+
+import "./setup_FIXTURE.js";
+
+import defer * as ns from "./dep_FIXTURE.js";
+
+assert.sameValue(globalThis.evaluations.length, 0, "import defer does not trigger evaluation");
+
+var key = "then";
+
+const obj = Object.create(ns);
+key in obj;
+
+assert.sameValue(globalThis.evaluations.length, 0, "It does not trigger evaluation");

test/language/import/import-defer/evaluation-triggers/ignore-private-name-access.js

@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/import-defer/private-name-access.case
+// - src/import-defer/ignore/ignore.template
+/*---
+description: PrivateGet and PrivateSet in a namespace object (does not trigger execution)
+esid: sec-module-namespace-exotic-objects
+features: [import-defer]
+flags: [generated, module]
+info: |
+    PrivateGet ( O, P )
+      1. Let entry be PrivateElementFind(O, P).
+      1. If entry is EMPTY, throw a TypeError exception.
+      1. If entry.[[Kind]] is either FIELD or METHOD, then
+         a. Return entry.[[Value]].
+      ...
+
+    PrivateSet ( O, P, value )
+      1. Let entry be PrivateElementFind(O, P).
+      1. If entry is EMPTY, throw a TypeError exception.
+      1. If entry.[[Kind]] is FIELD, then
+         a. Set entry.[[Value]] to value.
+      ...
+
+---*/
+
+
+import "./setup_FIXTURE.js";
+
+import defer * as ns from "./dep_FIXTURE.js";
+
+assert.sameValue(globalThis.evaluations.length, 0, "import defer does not trigger evaluation");
+
+class Marker extends function (x) { return x } {
+  #mark = "bar";
+
+  static mark(obj) {
+    new Marker(obj);
+  }
+
+  static getMark(obj) {
+    return obj.#mark;
+  }
+}
+
+Marker.mark(ns);
+assert.sameValue(Marker.getMark(ns), "bar");
+
+assert.sameValue(globalThis.evaluations.length, 0, "It does not trigger evaluation");

test/language/import/import-defer/evaluation-triggers/ignore-symbol-other-get-in-prototype.js

@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/import-defer/get-in-prototype.case
+// - src/import-defer/trigger-on-possible-export/symbol-other.template
+/*---
+description: _ [[Get]] when namespace object is in the prototype chain (of a symbol that is not a property of the namespace object, does not trigger execution)
+esid: sec-module-namespace-exotic-objects
+features: [import-defer]
+flags: [generated, module]
+info: |
+    IsSymbolLikeNamespaceKey ( _P_, _O_ )
+      1. If _P_ is a Symbol, return *true*.
+      1. If _ns_.[[Deferred]] is *true* and _P_ is "then", return *true*.
+      1. Return *false*.
+
+    GetModuleExportsList ( _O_ )
+      1. If _O_.[[Deferred]] is *true*, then
+        1. Let _m_ be _O_.[[Module]].
+        1. If _m_ is a Cyclic Module Record, _m_.[[Status]] is not ~evaluated~, and ReadyForSyncExecution(_m_) is *false*, throw a *TypeError* exception.
+        1. Perform ? EvaluateSync(_m_).
+      1. Return _O_.[[Exports]].
+
+
+    [[Get]] ( _P_, _Receiver_ )
+      1. If IsSymbolLikeNamespaceKey(_P_, _O_), return ! OrdinaryGet(_O_, _P_, _Receiver_).
+      1. Let _exports_ be ? GetModuleExportsList(_O_).
+      1. ...
+
+---*/
+
+
+import "./setup_FIXTURE.js";
+
+import defer * as ns from "./dep_FIXTURE.js";
+
+assert.sameValue(globalThis.evaluations.length, 0, "import defer does not trigger evaluation");
+
+var key = Symbol();
+
+const obj = Object.create(ns);
+obj[key];
+
+assert.sameValue(globalThis.evaluations.length, 0, "It does not trigger evaluation");

test/language/import/import-defer/evaluation-triggers/ignore-symbol-other-hasProperty-in-prototype.js

@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/import-defer/hasProperty-in-prototype.case
+// - src/import-defer/trigger-on-possible-export/symbol-other.template
+/*---
+description: _ [[HasProperty]] when namespace object is in the prototype chain (of a symbol that is not a property of the namespace object, does not trigger execution)
+esid: sec-module-namespace-exotic-objects
+features: [import-defer]
+flags: [generated, module]
+info: |
+    IsSymbolLikeNamespaceKey ( _P_, _O_ )
+      1. If _P_ is a Symbol, return *true*.
+      1. If _ns_.[[Deferred]] is *true* and _P_ is "then", return *true*.
+      1. Return *false*.
+
+    GetModuleExportsList ( _O_ )
+      1. If _O_.[[Deferred]] is *true*, then
+        1. Let _m_ be _O_.[[Module]].
+        1. If _m_ is a Cyclic Module Record, _m_.[[Status]] is not ~evaluated~, and ReadyForSyncExecution(_m_) is *false*, throw a *TypeError* exception.
+        1. Perform ? EvaluateSync(_m_).
+      1. Return _O_.[[Exports]].
+
+
+    [[HasProperty]] ( _P_, _Receiver_ )
+      1. If IsSymbolLikeNamespaceKey(_P_, _O_), return ! OrdinaryGet(_O_, _P_, _Receiver_).
+      1. Let _exports_ be ? GetModuleExportsList(_O_).
+      1. ...
+
+---*/
+
+
+import "./setup_FIXTURE.js";
+
+import defer * as ns from "./dep_FIXTURE.js";
+
+assert.sameValue(globalThis.evaluations.length, 0, "import defer does not trigger evaluation");
+
+var key = Symbol();
+
+const obj = Object.create(ns);
+key in obj;
+
+assert.sameValue(globalThis.evaluations.length, 0, "It does not trigger evaluation");