Refine tcgc logic for spread

.chronus/changes/refine_tcgc_logic-2024-3-2-16-27-30.md

@@ -0,0 +1,7 @@
+---
+changeKind: fix
+packages:
+  - "@azure-tools/typespec-client-generator-core"
+---
+
+Set spread model with none usage

.chronus/changes/refine_tcgc_logic-2024-3-2-16-27-52.md

@@ -0,0 +1,7 @@
+---
+changeKind: feature
+packages:
+  - "@azure-tools/typespec-client-generator-core"
+---
+
+Workaround for arm provider method parameter

packages/typespec-client-generator-core/package.json

@@ -57,6 +57,7 @@
     "pluralize": "^8.0.0"
   },
   "peerDependencies": {
+    "@azure-tools/typespec-azure-core": "workspace:~",
     "@typespec/compiler": "workspace:~",
     "@typespec/http": "workspace:~",
     "@typespec/rest": "workspace:~",

packages/typespec-client-generator-core/src/internal-utils.ts

@@ -205,9 +205,7 @@ export function isAzureCoreModel(t: Type): boolean {
   return (
     t.kind === "Model" &&
     t.namespace !== undefined &&
-    ["Azure.Core", "Azure.Core.Foundations", "Azure.ResourceManager"].includes(
-      getNamespaceFullName(t.namespace)
-    )
+    ["Azure.Core", "Azure.Core.Foundations"].includes(getNamespaceFullName(t.namespace))
   );
 }
 

packages/typespec-client-generator-core/src/package.ts

@@ -234,9 +234,9 @@ function getSdkBasicServiceMethod<
         );
       }
     } else {
-      const methodParameter = diagnostics.pipe(getSdkMethodParameter(context, prop));
-      if (methodParameter.kind === "method") {
-        methodParameters.push(methodParameter);
+      // workaround for the provider parameter in arm, need to refine method design in tcgc later
+      if (!context.arm || prop.name !== "provider") {
+        methodParameters.push(diagnostics.pipe(getSdkMethodParameter(context, prop)));
       }
     }
   }

packages/typespec-client-generator-core/src/public-utils.ts

@@ -1,5 +1,6 @@
 import {
   Diagnostic,
+  Enum,
   Interface,
   Model,
   ModelProperty,
@@ -175,7 +176,7 @@ export function getLibraryName(
       type.name +
       type.templateMapper.args
         .filter(
-          (arg): arg is Model =>
+          (arg): arg is Model | Enum =>
             (arg.kind === "Model" || arg.kind === "Enum") && arg.name.length > 0
         )
         .map((arg) => pascalCase(arg.name))

packages/typespec-client-generator-core/src/types.ts

@@ -1127,7 +1127,7 @@ function checkAndGetClientType(
 
 interface ModelUsageOptions {
   seenModelNames?: Set<SdkType>;
-  recurseThroughProperties?: boolean;
+  propagation?: boolean;
 }
 
 function updateUsageOfModel(
@@ -1137,7 +1137,7 @@ function updateUsageOfModel(
   options?: ModelUsageOptions
 ): void {
   options = options ?? {};
-  options.recurseThroughProperties = options?.recurseThroughProperties ?? true;
+  options.propagation = options?.propagation ?? true;
   if (!type || !["model", "enum", "array", "dict", "union", "enumvalue"].includes(type.kind))
     return;
   if (options?.seenModelNames === undefined) {
@@ -1168,10 +1168,7 @@ function updateUsageOfModel(
   }
 
   if (type.kind === "enum") return;
-  if (type.baseModel && (type.baseModel.usage & usage) === 0) {
-    // if it has a base model and the base model doesn't currently have that usage
-    type.baseModel.usage |= usage;
-  }
+  if (!options.propagation) return;
   if (type.baseModel) {
     updateUsageOfModel(context, usage, type.baseModel, options);
   }
@@ -1180,13 +1177,11 @@ function updateUsageOfModel(
       updateUsageOfModel(context, usage, discriminatedSubtype, options);
     }
   }
-  if (type.additionalProperties && options.recurseThroughProperties) {
+  if (type.additionalProperties) {
     updateUsageOfModel(context, usage, type.additionalProperties, options);
   }
-  if (options.recurseThroughProperties) {
-    for (const property of type.properties) {
-      updateUsageOfModel(context, usage, property.type, options);
-    }
+  for (const property of type.properties) {
+    updateUsageOfModel(context, usage, property.type, options);
   }
 }
 
@@ -1221,6 +1216,8 @@ function updateTypesFromOperation(
     const bodies = diagnostics.pipe(checkAndGetClientType(context, httpBody.type, operation));
     if (generateConvenient) {
       bodies.forEach((body) => {
+        // spread body model should be none usage
+        if (body.kind === "model" && body.isGeneratedName) return;
         updateUsageOfModel(context, UsageFlags.Input, body);
       });
       if (httpBody.contentTypes.includes("application/merge-patch+json")) {
@@ -1232,7 +1229,7 @@ function updateTypesFromOperation(
     if (isMultipartFormData(context, httpBody.type, operation)) {
       bodies.forEach((body) => {
         updateUsageOfModel(context, UsageFlags.MultipartFormData, body, {
-          recurseThroughProperties: false,
+          propagation: false,
         });
       });
     }

packages/typespec-client-generator-core/test/package.test.ts

@@ -2757,7 +2757,7 @@ describe("typespec-client-generator-core: package", () => {
         `);
       const sdkPackage = runner.context.experimental_sdkPackage;
       const method = getServiceMethodOfClient(sdkPackage);
-      strictEqual(sdkPackage.models.length, 1);
+      strictEqual(sdkPackage.models.length, 0);
       strictEqual(method.name, "myOp");
       strictEqual(method.kind, "basic");
       strictEqual(method.parameters.length, 2);

packages/typespec-client-generator-core/test/public-utils.test.ts

@@ -1284,8 +1284,7 @@ describe("typespec-client-generator-core: public-utils", () => {
         `
         );
         const models = runner.context.experimental_sdkPackage.models;
-        strictEqual(models.length, 1);
-        ok(models.find((x) => x.name === "TestRequest" && x.isGeneratedName));
+        strictEqual(models.length, 0);
       });
 
       it("anonymous model for body parameter", async () => {
@@ -1295,8 +1294,7 @@ describe("typespec-client-generator-core: public-utils", () => {
         `
         );
         const models = runner.context.experimental_sdkPackage.models;
-        strictEqual(models.length, 1);
-        ok(models.find((x) => x.name === "TestRequest" && x.isGeneratedName));
+        strictEqual(models.length, 0);
       });
 
       it("anonymous union in response header", async () => {

packages/typespec-client-generator-core/test/types.test.ts

@@ -2025,17 +2025,14 @@ describe("typespec-client-generator-core: types", () => {
       interface StringExtensible extends GetAndSend<string | "b" | "c"> {}
       `);
       const sdkPackage = runner.context.experimental_sdkPackage;
-      strictEqual(sdkPackage.models.length, 2);
+      strictEqual(sdkPackage.models.length, 1);
       strictEqual(sdkPackage.enums.length, 1);
       const prop = sdkPackage.enums.find((x) => x.name === "GetResponseProp" && x.isGeneratedName);
       ok(prop);
       strictEqual(prop.isFixed, false);
       strictEqual(prop.valueType.kind, "string");
-      const req = sdkPackage.models.find((x) => x.name === "SendRequest" && x.isGeneratedName);
       const resp = sdkPackage.models.find((x) => x.name === "GetResponse" && x.isGeneratedName);
-      ok(req);
       ok(resp);
-      strictEqual(req.properties[0].type, prop);
       strictEqual(resp.properties[0].type, prop);
     });