[SourceGen] Add MSBuild prop to disable source-generated function metadata (#1200)

Author: satvu

sdk/Sdk.Generators/Constants.cs

@@ -5,35 +5,50 @@ namespace Microsoft.Azure.Functions.Worker.Sdk.Generators
 {
     internal static class Constants
     {
-        // Our types
-        internal const string BindingAttributeType = "Microsoft.Azure.Functions.Worker.Extensions.Abstractions.BindingAttribute";
-        internal const string OutputBindingAttributeType = "Microsoft.Azure.Functions.Worker.Extensions.Abstractions.OutputBindingAttribute";
-        internal const string FunctionNameType = "Microsoft.Azure.Functions.Worker.FunctionAttribute";
-        internal const string HttpResponseType = "Microsoft.Azure.Functions.Worker.Http.HttpResponseData";
-        internal const string EventHubsTriggerType = "Microsoft.Azure.Functions.Worker.EventHubTriggerAttribute";
-        internal const string BindingPropertyNameAttributeType = "Microsoft.Azure.Functions.Worker.Extensions.Abstractions.BindingPropertyNameAttribute";
-        internal const string DefaultValueType = "Microsoft.Azure.Functions.Worker.Extensions.Abstractions.DefaultValueAttribute";
+        public static class BuildProperties
+        {
+            internal const string EnableSourceGenProp = "build_property.FunctionsMetadataSourceGen_Enabled";
+        }
 
-        // System types
-        internal const string IEnumerableType = "System.Collections.IEnumerable";
-        internal const string IEnumerableGenericType = "System.Collections.Generic.IEnumerable`1";
-        internal const string IEnumerableOfStringType = "System.Collections.Generic.IEnumerable`1<System.String>";
-        internal const string IEnumerableOfBinaryType = "System.Collections.Generic.IEnumerable`1<System.Byte[]>";
-        internal const string IEnumerableOfT = "System.Collections.Generic.IEnumerable`1<T>";
-        internal const string IEnumerableOfKeyValuePair = "System.Collections.Generic.IEnumerable`1<System.Collections.Generic.KeyValuePair`2<TKey,TValue>>";
-        internal const string StringType = "System.String";
-        internal const string ByteArrayType = "System.Byte[]";
-        internal const string ByteStructType = "System.Byte";
-        internal const string TaskGenericType = "System.Threading.Tasks.Task`1";
-        internal const string TaskType = "System.Threading.Tasks.Task";
-        internal const string VoidType = "System.Void";
-        internal const string ReadOnlyMemoryOfBytes = "System.ReadOnlyMemory`1<System.Byte>";
-        internal const string LookupGenericType = "System.Linq.Lookup`2";
-        internal const string DictionaryGenericType = "System.Collections.Generic.Dictionary`2";
+        public static class FileNames
+        {
+            internal const string GeneratedFunctionMetadata = "GeneratedFunctionMetadataProvider.g.cs";
+        }
 
-        internal const string ReturnBindingName = "$return";
-        internal const string HttpResponseBindingName = "HttpResponse";
-        internal const string HttpTriggerBindingType = "Microsoft.Azure.Functions.Worker.HttpTriggerAttribute";
-        internal const string IsBatchedKey = "IsBatched";
+        public static class Types
+        {
+            // Our types
+            internal const string BindingAttribute = "Microsoft.Azure.Functions.Worker.Extensions.Abstractions.BindingAttribute";
+            internal const string OutputBindingAttribute = "Microsoft.Azure.Functions.Worker.Extensions.Abstractions.OutputBindingAttribute";
+            internal const string FunctionName = "Microsoft.Azure.Functions.Worker.FunctionAttribute";
+            internal const string HttpResponse = "Microsoft.Azure.Functions.Worker.Http.HttpResponseData";
+            internal const string HttpTriggerBinding = "Microsoft.Azure.Functions.Worker.HttpTriggerAttribute";
+            internal const string EventHubsTrigger = "Microsoft.Azure.Functions.Worker.EventHubTriggerAttribute";
+            internal const string BindingPropertyNameAttribute = "Microsoft.Azure.Functions.Worker.Extensions.Abstractions.BindingPropertyNameAttribute";
+            internal const string DefaultValue = "Microsoft.Azure.Functions.Worker.Extensions.Abstractions.DefaultValueAttribute";
+
+            // System types
+            internal const string IEnumerable = "System.Collections.IEnumerable";
+            internal const string IEnumerableGeneric = "System.Collections.Generic.IEnumerable`1";
+            internal const string IEnumerableOfString = "System.Collections.Generic.IEnumerable`1<System.String>";
+            internal const string IEnumerableOfBinary = "System.Collections.Generic.IEnumerable`1<System.Byte[]>";
+            internal const string IEnumerableOfT = "System.Collections.Generic.IEnumerable`1<T>";
+            internal const string IEnumerableOfKeyValuePair = "System.Collections.Generic.IEnumerable`1<System.Collections.Generic.KeyValuePair`2<TKey,TValue>>";
+            internal const string String = "System.String";
+            internal const string ByteArray = "System.Byte[]";
+            internal const string ByteStruct = "System.Byte";
+            internal const string TaskGeneric = "System.Threading.Tasks.Task`1";
+            internal const string Task = "System.Threading.Tasks.Task";
+            internal const string Void = "System.Void";
+            internal const string ReadOnlyMemoryOfBytes = "System.ReadOnlyMemory`1<System.Byte>";
+            internal const string LookupGeneric = "System.Linq.Lookup`2";
+            internal const string DictionaryGeneric = "System.Collections.Generic.Dictionary`2";
+        }
+        
+        public static class FunctionMetadataBindingProps {
+            internal const string ReturnBindingName = "$return";
+            internal const string HttpResponseBindingName = "HttpResponse";
+            internal const string IsBatchedKey = "IsBatched";
+        }
     }
 }