| // This file was procedurally generated from the following sources: |
| // - src/dynamic-import/ns-get-nested-namespace-dflt-direct.case |
| // - src/dynamic-import/namespace/promise.template |
| /*--- |
| description: Direct Default exports are included in an imported module namespace object when a namespace object is created. (value from promise then) |
| esid: sec-finishdynamicimport |
| features: [export-star-as-namespace-from-module, dynamic-import] |
| flags: [generated, async] |
| info: | |
| Runtime Semantics: FinishDynamicImport ( referencingScriptOrModule, specifier, promiseCapability, completion ) |
| |
| 1. If completion is an abrupt completion, ... |
| 2. Otherwise, |
| ... |
| d. Let namespace be GetModuleNamespace(moduleRecord). |
| e. If namespace is an abrupt completion, perform ! Call(promiseCapability.[[Reject]], undefined, « namespace.[[Value]] »). |
| f. Otherwise, perform ! Call(promiseCapability.[[Resolve]], undefined, « namespace.[[Value]] »). |
| |
| Runtime Semantics: GetModuleNamespace ( module ) |
| |
| ... |
| 3. Let namespace be module.[[Namespace]]. |
| 4. If namespace is undefined, then |
| a. Let exportedNames be ? module.GetExportedNames(« »). |
| b. Let unambiguousNames be a new empty List. |
| c. For each name that is an element of exportedNames, do |
| i. Let resolution be ? module.ResolveExport(name, « »). |
| ii. If resolution is a ResolvedBinding Record, append name to unambiguousNames. |
| d. Set namespace to ModuleNamespaceCreate(module, unambiguousNames). |
| 5. Return namespace. |
| |
| ModuleNamespaceCreate ( module, exports ) |
| |
| ... |
| 4. Let M be a newly created object. |
| 5. Set M's essential internal methods to the definitions specified in 9.4.6. |
| 7. Let sortedExports be a new List containing the same values as the list exports where the |
| values are ordered as if an Array of the same values had been sorted using Array.prototype.sort |
| using undefined as comparefn. |
| 8. Set M.[[Exports]] to sortedExports. |
| 9. Create own properties of M corresponding to the definitions in 26.3. |
| 10. Set module.[[Namespace]] to M. |
| 11. Return M. |
| |
| 26.3 Module Namespace Objects |
| |
| A Module Namespace Object is a module namespace exotic object that provides runtime |
| property-based access to a module's exported bindings. There is no constructor function for |
| Module Namespace Objects. Instead, such an object is created for each module that is imported |
| by an ImportDeclaration that includes a NameSpaceImport. |
| |
| In addition to the properties specified in 9.4.6 each Module Namespace Object has the |
| following own property: |
| |
| 26.3.1 @@toStringTag |
| |
| The initial value of the @@toStringTag property is the String value "Module". |
| |
| This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }. |
| |
| Module Namespace Exotic Objects |
| |
| A module namespace object is an exotic object that exposes the bindings exported from an |
| ECMAScript Module (See 15.2.3). There is a one-to-one correspondence between the String-keyed |
| own properties of a module namespace exotic object and the binding names exported by the |
| Module. The exported bindings include any bindings that are indirectly exported using export * |
| export items. Each String-valued own property key is the StringValue of the corresponding |
| exported binding name. These are the only String-keyed properties of a module namespace exotic |
| object. Each such property has the attributes { [[Writable]]: true, [[Enumerable]]: true, |
| [[Configurable]]: false }. Module namespace objects are not extensible. |
| |
| |
| [...] |
| 6. Let binding be ! m.ResolveExport(P, « »). |
| 7. Assert: binding is a ResolvedBinding Record. |
| 8. Let targetModule be binding.[[Module]]. |
| 9. Assert: targetModule is not undefined. |
| 10. If binding.[[BindingName]] is "*namespace*", then |
| 11. Return ? GetModuleNamespace(targetModule). |
| |
| Runtime Semantics: GetModuleNamespace |
| [...] |
| 3. If namespace is undefined, then |
| a. Let exportedNames be ? module.GetExportedNames(« »). |
| b. Let unambiguousNames be a new empty List. |
| c. For each name that is an element of exportedNames, |
| i. Let resolution be ? module.ResolveExport(name, « », « »). |
| ii. If resolution is null, throw a SyntaxError exception. |
| iii. If resolution is not "ambiguous", append name to |
| unambiguousNames. |
| d. Let namespace be ModuleNamespaceCreate(module, unambiguousNames). |
| [...] |
| |
| ---*/ |
| |
| import('./get-nested-namespace-dflt-skip-prod_FIXTURE.js').then(ns => { |
| |
| var desc = Object.getOwnPropertyDescriptor(ns, 'productionNS2'); |
| |
| assert.sameValue(desc.enumerable, true, 'ns.productionNS2: is enumerable'); |
| assert.sameValue(desc.writable, true, 'ns.productionNS2: is writable'); |
| assert.sameValue(desc.configurable, false, 'ns.productionNS2: is non-configurable'); |
| |
| var keys = Object.getOwnPropertyNames(ns.productionNS2); |
| |
| assert.sameValue(keys.length, 2); |
| assert.sameValue(keys[0], 'default'); |
| assert.sameValue(keys[1], 'productionOther'); |
| |
| desc = Object.getOwnPropertyDescriptor(ns.productionNS2, 'productionOther'); |
| |
| assert.sameValue(desc.value, null, 'ns.productionNS2.productionOther: value is null'); |
| assert.sameValue(desc.enumerable, true, 'ns.productionNS2.productionOther: is enumerable'); |
| assert.sameValue(desc.writable, true, 'ns.productionNS2.productionOther: is writable'); |
| assert.sameValue(desc.configurable, false, 'ns.productionNS2.productionOther: is non-configurable'); |
| |
| desc = Object.getOwnPropertyDescriptor(ns.productionNS2, 'default'); |
| |
| assert.sameValue(desc.value, 42, 'ns.productionNS2.default value is 42'); |
| assert.sameValue(desc.enumerable, true, 'ns.productionNS2.default is enumerable'); |
| assert.sameValue(desc.writable, true, 'ns.productionNS2.default is writable'); |
| assert.sameValue(desc.configurable, false, 'ns.productionNS2.default is non-configurable'); |
| |
| }).then($DONE, $DONE).catch($DONE); |