Improve module typedefs and loader generation (#265)

Docs/dynamic-invoke.md

@@ -11,11 +11,10 @@ For examples of this scenario, see
      <PropertyGroup>
        <TargetFramework>net6.0</TargetFramework>
        <OutDir>bin</OutDir>
-       <NodeApiAssemblyJSModuleType>commonjs</NodeApiAssemblyJSModuleType>
        <GenerateNodeApiTypeDefinitionsForReferences>true</GenerateNodeApiTypeDefinitionsForReferences>
      </PropertyGroup>
      <ItemGroup>
-       <PackageReference Include="Microsoft.JavaScript.NodeApi.Generator" Version="0.5.*" />
+       <PackageReference Include="Microsoft.JavaScript.NodeApi.Generator" Version="0.7.*" />
        <PackageReference Include="Example.Package" Version="1.2.3" />
        <PackageReference Include="Example.Package.Two" Version="2.3.4" />
      </ItemGroup>
@@ -27,15 +26,15 @@ For examples of this scenario, see
      will be placed there.
    - The `Microsoft.JavaScript.NodeApi.Generator` package reference enables automatic generation
      of TS type-definitions for the referenced assemblies.
-   - Change `NodeApiAssemblyJSModuleType` to `esm` if using ES modules.
 
    Build the project to restore the packages, place assemblies in the `bin` directory, and generate
    type definitions:
    ```
    dotnet build
    ```
 
-2. Add a dependency on the `node-api-dotnet` npm package to your JavaScript project:
+2. Create a `package.json` file for the project, if you haven't already. Then add a dependency on
+the `node-api-dotnet` npm package to your JavaScript project:
     ```
     npm install node-api-dotnet
     ```

Docs/node-module.md

@@ -23,8 +23,8 @@ For a minimal example of this scenario, see
     Afterward you should have the two references in your project file:
     ```xml
     <ItemGroup>
-      <PackageReference Include="Microsoft.JavaScript.NodeApi" Version="0.4.*-*" />
-      <PackageReference Include="Microsoft.JavaScript.NodeApi.Generator" Version="0.4.*-*" />
+      <PackageReference Include="Microsoft.JavaScript.NodeApi" Version="0.7.*-*" />
+      <PackageReference Include="Microsoft.JavaScript.NodeApi.Generator" Version="0.7.*-*" />
     </ItemGroup>
     ```
 

examples/aot-module/example.js

@@ -1,10 +1,10 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-const Example = require('./bin/aot-module').Example;
+import { Example } from './bin/aot-module.js';
 
 // Call a method exported by the .NET module.
 const result = Example.hello('.NET AOT');
 
-const assert = require('assert');
+import assert from 'assert';
 assert.strictEqual(result, 'Hello .NET AOT!');

examples/aot-module/package.json

@@ -0,0 +1,4 @@
+{
+  "name": "node-api-dotnet-examples-aot-module",
+  "type": "module"
+}

examples/aot-npm-package/app/example.js

@@ -1,10 +1,10 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-const Example = require('aot-npm-package').Example;
+import { Example } from 'aot-npm-package';
 
 // Call a method exported by the .NET module.
 const result = Example.hello('.NET AOT');
 
-const assert = require('assert');
+import assert from 'node:assert';
 assert.strictEqual(result, 'Hello .NET AOT!');

examples/aot-npm-package/app/package.json

@@ -7,9 +7,10 @@
   "author": "Microsoft",
   "repository": "github:microsoft/node-api-dotnet",
   "main": "./example.js",
+  "type": "module",
   "scripts": {
   },
   "dependencies": {
-    "aot-npm-package": "file:../lib/pkg/aot-npm-package-0.1.6.tgz"
+    "aot-npm-package": "file:../lib"
   }
 }

examples/aot-npm-package/lib/aot-npm-package.csproj

@@ -6,11 +6,14 @@
     <!-- The C# xmldoc file is converted to comments in the generated TS type definitions. -->
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
 
-    <!-- `dotnet publish` will produce node module files in $(PublishDir), with
-      .node native AOT binary files under $(RuntimeIdentifier) subdirectories. -->
+    <!-- `dotnet publish` will produce node module files in $(PublishDir) -->
     <PublishAot>true</PublishAot>
     <PublishNodeModule>true</PublishNodeModule>
     <PublishDir>bin</PublishDir>
+
+    <!-- Place .node native AOT binary files under $(RuntimeIdentifier) subdirectories.
+         This could support packaging multiple platform-specific binaries in a single npm package
+         (though that would require building them each separately then merging the results). -->
     <PublishMultiPlatformNodeModule>true</PublishMultiPlatformNodeModule>
 
     <!-- `dotnet publish` will produce an npm package in the $(PackageOutputPath) directory. -->

examples/aot-npm-package/lib/package.json

@@ -1,12 +1,13 @@
 {
   "name": "aot-npm-package",
   "private": true,
-  "version": "0.1.6",
+  "version": "0.2",
   "description": "Example npm-packaged C# Native AOT node module",
   "license": "MIT",
   "author": "Microsoft",
   "repository": "github:microsoft/node-api-dotnet",
-  "main": "./bin/aot-npm-package",
+  "type": "module",
+  "main": "./bin/aot-npm-package.js",
   "scripts": {
   }
 }

examples/dotnet-module/example.js

@@ -1,10 +1,7 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-const dotnet = require('node-api-dotnet');
-
-/** @type {import('./bin/dotnet-module').Example} */
-const Example = dotnet.require('./bin/dotnet-module').Example;
+const Example = require('./bin/dotnet-module').Example;
 
 // Call a method exported by the .NET module.
 const result = Example.hello('.NET');

examples/dotnet-module/package.json

@@ -1,5 +1,6 @@
 {
   "name": "node-api-dotnet-examples-dotnet-module",
+  "type": "commonjs",
   "dependencies": {
     "node-api-dotnet": "file:../../out/pkg/node-api-dotnet"
   }

examples/semantic-kernel/semantic-kernel.csproj

@@ -4,7 +4,6 @@
     <TargetFramework>net6.0</TargetFramework>
     <RestorePackagesPath>$(MSBuildThisFileDirectory)/pkg</RestorePackagesPath>
     <OutDir>bin</OutDir>
-    <NodeApiAssemblyJSModuleType>esm</NodeApiAssemblyJSModuleType>
   </PropertyGroup>
 
   <ItemGroup>

examples/wpf/WpfExample.csproj

@@ -4,7 +4,6 @@
     <TargetFramework>net6.0-windows</TargetFramework>
     <RestorePackagesPath>$(MSBuildThisFileDirectory)/pkg</RestorePackagesPath>
     <OutDir>bin</OutDir>
-    <NodeApiAssemblyJSModuleType>esm</NodeApiAssemblyJSModuleType>
     <UseWPF>true</UseWPF>
     <GenerateNodeApiTypeDefinitionsForReferences>true</GenerateNodeApiTypeDefinitionsForReferences>
   </PropertyGroup>

src/NodeApi.Generator/ModuleGenerator.cs

@@ -316,10 +316,9 @@ private SourceBuilder GenerateModuleInitializer(
                     "[JSExport] attributes cannot be used with custom init method.");
             }
 
-            string ns = GetNamespace(moduleInitializerMethod);
-            string className = moduleInitializerMethod.ContainingType.Name;
+            string classFullName = GetFullName(moduleInitializerMethod.ContainingType);
             string methodName = moduleInitializerMethod.Name;
-            s += $"return (napi_value){ns}.{className}.{methodName}(";
+            s += $"return (napi_value){classFullName}.{methodName}(";
             s += "context, (JSObject)exportsValue);";
         }
         else
@@ -364,8 +363,8 @@ private void ExportModule(
     {
         if (moduleType != null)
         {
-            string ns = GetNamespace(moduleType);
-            s += $"exportsValue = new JSModuleBuilder<{ns}.{moduleType.Name}>()";
+            string typeFullName = GetFullName(moduleType);
+            s += $"exportsValue = new JSModuleBuilder<{typeFullName}>()";
             s.IncreaseIndent();
 
             // Export public non-static members of the module class.
@@ -421,8 +420,8 @@ private void ExportModule(
         {
             // Construct an instance of the custom module class when the module is initialized.
             // If a no-args constructor is not present then the generated code will not compile.
-            string ns = GetNamespace(moduleType);
-            s += $".ExportModule(new {ns}.{moduleType.Name}(), (JSObject)exportsValue);";
+            string typeFullName = GetFullName(moduleType);
+            s += $".ExportModule(new {typeFullName}(), (JSObject)exportsValue);";
         }
         else
         {
@@ -453,7 +452,7 @@ private void ExportType(
             s += $".AddProperty(\"{exportName}\",";
             s.IncreaseIndent();
 
-            string ns = GetNamespace(type);
+            string typeFullName = GetFullName(type);
             if (type.TypeKind == TypeKind.Interface)
             {
                 // Interfaces do not have constructors.
@@ -483,12 +482,12 @@ private void ExportType(
                 }
                 else if (constructors.Length == 1 && constructors[0].GetParameters().Length == 0)
                 {
-                    s += $"\t() => new {ns}.{type.Name}())";
+                    s += $"\t() => new {typeFullName}())";
                 }
                 else if (constructors.Length == 1 &&
                     constructors[0].GetParameters()[0].ParameterType == typeof(JSCallbackArgs))
                 {
-                    s += $"\t(args) => new {ns}.{type.Name}(args))";
+                    s += $"\t(args) => new {typeFullName}(args))";
                 }
                 else
                 {
@@ -607,10 +606,9 @@ private void ExportMethod(
         if (methods.Count() == 1 && !IsMethodCallbackAdapterRequired(method))
         {
             // No adapter is needed for a method with a JSCallback signature.
-            string ns = GetNamespace(method);
-            string className = method.ContainingType.Name;
+            string typeFullName = GetFullName(method.ContainingType);
             s += $".AddMethod(\"{exportName}\", " +
-                $"{ns}.{className}.{method.Name},\n\t{attributes})";
+                $"{typeFullName}.{method.Name},\n\t{attributes})";
         }
         else if (methods.Count() == 1)
         {
@@ -656,8 +654,7 @@ private void ExportProperty(
         s += $".AddProperty(\"{exportName}\",";
         s.IncreaseIndent();
 
-        string ns = GetNamespace(property);
-        string className = property.ContainingType.Name;
+        string typeFullName = GetFullName(property.ContainingType);
 
         if (property.GetMethod?.DeclaredAccessibility != Accessibility.Public)
         {
@@ -672,7 +669,7 @@ private void ExportProperty(
         }
         else if (property.IsStatic)
         {
-            s += $"getter: () => {ns}.{className}.{property.Name},";
+            s += $"getter: () => {typeFullName}.{property.Name},";
         }
         else
         {
@@ -692,7 +689,7 @@ private void ExportProperty(
         }
         else if (property.IsStatic)
         {
-            s += $"setter: (value) => {ns}.{className}.{property.Name} = value,";
+            s += $"setter: (value) => {typeFullName}.{property.Name} = value,";
         }
         else
         {

src/NodeApi.Generator/NodeApi.Generator.targets

@@ -5,8 +5,13 @@
 
     <NodeApiGeneratorAssemblyName>Microsoft.JavaScript.NodeApi.Generator</NodeApiGeneratorAssemblyName>
     <NodeApiGeneratorAssemblyPath>$(MSBuildThisFileDirectory)../analyzers/dotnet/cs/$(NodeApiGeneratorAssemblyName).dll</NodeApiGeneratorAssemblyPath>
-    <NodeApiAssemblyJSModuleType Condition=" '$(NodeApiAssemblyJSModuleType)' == '' ">commonjs</NodeApiAssemblyJSModuleType>
-    <NodeApiTypeDefinitionsGeneratorOptions>--module $(NodeApiAssemblyJSModuleType) $(NodeApiTypedefsGeneratorOptions) --framework $(TargetFramework)</NodeApiTypeDefinitionsGeneratorOptions>
+
+    <!-- Try to infer the module type from package.json in the project directory. Otherwise default to generating both module types.-->
+    <NodeApiPackageJson Condition=" '$(NodeApiPackageJson)' == '' ">$(ProjectDir)package.json</NodeApiPackageJson>
+    <NodeApiJSModuleType Condition=" '$(NodeApiJSModuleType)' == '' AND Exists('$(NodeApiPackageJson)') ">&quot;$(NodeApiPackageJson)&quot;</NodeApiJSModuleType>
+    <NodeApiJSModuleType Condition=" '$(NodeApiJSModuleType)' == '' ">commonjs,esm</NodeApiJSModuleType>
+
+    <NodeApiTypeDefinitionsGeneratorOptions>--module $(NodeApiJSModuleType) --framework $(TargetFramework) $(NodeApiTypedefsGeneratorOptions)</NodeApiTypeDefinitionsGeneratorOptions>
   </PropertyGroup>
 
   <Target Name="ConfigureNodeApiTypeDefinitions"
@@ -58,6 +63,9 @@
     Condition=" '$(GenerateNodeApiTypeDefinitions)' == 'true' AND Exists('$(TargetDir)$(NodeApiTypeDefinitionsFileName)') "
   >
     <Copy SourceFiles="$(TargetDir)$(NodeApiTypeDefinitionsFileName)" DestinationFolder="$(PublishDir)" />
+    <Copy SourceFiles="$(TargetDir)$(TargetName).js" DestinationFolder="$(PublishDir)" Condition="Exists('$(TargetDir)$(TargetName).js')" />
+    <Copy SourceFiles="$(TargetDir)$(TargetName).cjs" DestinationFolder="$(PublishDir)" Condition="Exists('$(TargetDir)$(TargetName).cjs')" />
+    <Copy SourceFiles="$(TargetDir)$(TargetName).mjs" DestinationFolder="$(PublishDir)" Condition="Exists('$(TargetDir)$(TargetName).mjs')" />
   </Target>
 
   <Target Name="CleanNodeApiTypeDefinitions" AfterTargets="CoreClean">