Intrinsics.cs

// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using ILLink.Shared.TypeSystemProxy;

// This is needed due to NativeAOT which doesn't enable nullable globally yet
#nullable enable

namespace ILLink.Shared.TrimAnalysis
{
    internal static class Intrinsics
    {
        public static IntrinsicId GetIntrinsicIdForMethod(MethodProxy calledMethod)
        {
            return calledMethod.Name switch
            {
                // static System.Reflection.IntrospectionExtensions.GetTypeInfo(Type type)
                "GetTypeInfo" when calledMethod.IsDeclaredOnType("System.Reflection.IntrospectionExtensions") => IntrinsicId.IntrospectionExtensions_GetTypeInfo,

                // System.Reflection.TypeInfo.AsType()
                "AsType" when calledMethod.IsDeclaredOnType("System.Reflection.TypeInfo") => IntrinsicId.TypeInfo_AsType,

                // System.Type.GetTypeInfo(Type type)
                "GetTypeFromHandle" when calledMethod.IsDeclaredOnType("System.Type") => IntrinsicId.Type_GetTypeFromHandle,

                // System.Type.TypeHandle getter
                "get_TypeHandle" when calledMethod.IsDeclaredOnType("System.Type") => IntrinsicId.Type_get_TypeHandle,

                // System.Type.Assembly getter
                "get_Assembly" when calledMethod.IsDeclaredOnType("System.Type") => IntrinsicId.Type_get_Assembly,

                // static System.Reflection.MethodBase.GetMethodFromHandle(RuntimeMethodHandle handle)
                // static System.Reflection.MethodBase.GetMethodFromHandle(RuntimeMethodHandle handle, RuntimeTypeHandle declaringType)
                "GetMethodFromHandle" when calledMethod.IsDeclaredOnType("System.Reflection.MethodBase")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.RuntimeMethodHandle")
                    && (calledMethod.HasMetadataParametersCount(1) || calledMethod.HasMetadataParametersCount(2))
                    => IntrinsicId.MethodBase_GetMethodFromHandle,

                // System.Reflection.MethodBase.MethodHandle getter
                "get_MethodHandle" when calledMethod.IsDeclaredOnType("System.Reflection.MethodBase") => IntrinsicId.MethodBase_get_MethodHandle,

                // static System.Type.MakeGenericType(Type[] typeArguments)
                "MakeGenericType" when calledMethod.IsDeclaredOnType("System.Type") => IntrinsicId.Type_MakeGenericType,

                // static System.Reflection.RuntimeReflectionExtensions.GetMethodInfo(this Delegate del)
                "GetMethodInfo" when calledMethod.IsDeclaredOnType("System.Reflection.RuntimeReflectionExtensions")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Delegate")
                    => IntrinsicId.RuntimeReflectionExtensions_GetMethodInfo,

                // static System.Reflection.RuntimeReflectionExtensions.GetRuntimeEvent(this Type type, string name)
                "GetRuntimeEvent" when calledMethod.IsDeclaredOnType("System.Reflection.RuntimeReflectionExtensions")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.RuntimeReflectionExtensions_GetRuntimeEvent,

                // static System.Reflection.RuntimeReflectionExtensions.GetRuntimeField(this Type type, string name)
                "GetRuntimeField" when calledMethod.IsDeclaredOnType("System.Reflection.RuntimeReflectionExtensions")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.,String")
                    => IntrinsicId.RuntimeReflectionExtensions_GetRuntimeField,

                // static System.Reflection.RuntimeReflectionExtensions.GetRuntimeMethod(this Type type, string name, Type[] parameters)
                "GetRuntimeMethod" when calledMethod.IsDeclaredOnType("System.Reflection.RuntimeReflectionExtensions")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.RuntimeReflectionExtensions_GetRuntimeMethod,

                // static System.Reflection.RuntimeReflectionExtensions.GetRuntimeProperty(this Type type, string name)
                "GetRuntimeProperty" when calledMethod.IsDeclaredOnType("System.Reflection.RuntimeReflectionExtensions")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.RuntimeReflectionExtensions_GetRuntimeProperty,

                // static System.Linq.Expressions.Expression.Call(Type, String, Type[], Expression[])
                "Call" when calledMethod.IsDeclaredOnType("System.Linq.Expressions.Expression")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    && calledMethod.HasMetadataParametersCount(4)
                    => IntrinsicId.Expression_Call,

                // static System.Linq.Expressions.Expression.Field(Expression, Type, String)
                "Field" when calledMethod.IsDeclaredOnType("System.Linq.Expressions.Expression")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Type")
                    && calledMethod.HasMetadataParametersCount(3)
                    => IntrinsicId.Expression_Field,

                // static System.Linq.Expressions.Expression.Property(Expression, Type, String)
                // static System.Linq.Expressions.Expression.Property(Expression, MethodInfo)
                "Property" when calledMethod.IsDeclaredOnType("System.Linq.Expressions.Expression")
                    && ((calledMethod.HasParameterOfType((ParameterIndex)1, "System.Type") && calledMethod.HasMetadataParametersCount(3))
                    || (calledMethod.HasParameterOfType((ParameterIndex)1, "System.Reflection.MethodInfo") && calledMethod.HasMetadataParametersCount(2)))
                    => IntrinsicId.Expression_Property,

                // static System.Linq.Expressions.Expression.New(Type)
                "New" when calledMethod.IsDeclaredOnType("System.Linq.Expressions.Expression")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    && calledMethod.HasMetadataParametersCount(1)
                    => IntrinsicId.Expression_New,

                // static Array System.Enum.GetValues(Type)
                "GetValues" when calledMethod.IsDeclaredOnType("System.Enum")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    && calledMethod.HasMetadataParametersCount(1)
                    => IntrinsicId.Enum_GetValues,

                // static int System.Runtime.InteropServices.Marshal.SizeOf(Type)
                "SizeOf" when calledMethod.IsDeclaredOnType("System.Runtime.InteropServices.Marshal")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    && calledMethod.HasMetadataParametersCount(1)
                    => IntrinsicId.Marshal_SizeOf,

                // static int System.Runtime.InteropServices.Marshal.OffsetOf(Type, string)
                "OffsetOf" when calledMethod.IsDeclaredOnType("System.Runtime.InteropServices.Marshal")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    && calledMethod.HasMetadataParametersCount(2)
                    => IntrinsicId.Marshal_OffsetOf,

                // static object System.Runtime.InteropServices.Marshal.PtrToStructure(IntPtr, Type)
                "PtrToStructure" when calledMethod.IsDeclaredOnType("System.Runtime.InteropServices.Marshal")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Type")
                    && calledMethod.HasMetadataParametersCount(2)
                    => IntrinsicId.Marshal_PtrToStructure,

                // static void System.Runtime.InteropServices.Marshal.DestroyStructure(IntPtr, Type)
                "DestroyStructure" when calledMethod.IsDeclaredOnType("System.Runtime.InteropServices.Marshal")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Type")
                    && calledMethod.HasMetadataParametersCount(2)
                    => IntrinsicId.Marshal_DestroyStructure,

                // static Delegate System.Runtime.InteropServices.Marshal.GetDelegateForFunctionPointer(IntPtr, Type)
                "GetDelegateForFunctionPointer" when calledMethod.IsDeclaredOnType("System.Runtime.InteropServices.Marshal")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Type")
                    && calledMethod.HasMetadataParametersCount(2)
                    => IntrinsicId.Marshal_GetDelegateForFunctionPointer,

                // static System.Type.GetType(string)
                // static System.Type.GetType(string, Boolean)
                // static System.Type.GetType(string, Boolean, Boolean)
                // static System.Type.GetType(string, Func<AssemblyName, Assembly>, Func<Assembly, String, Boolean, Type>)
                // static System.Type.GetType(string, Func<AssemblyName, Assembly>, Func<Assembly, String, Boolean, Type>, Boolean)
                // static System.Type.GetType(string, Func<AssemblyName, Assembly>, Func<Assembly, String, Boolean, Type>, Boolean, Boolean)
                "GetType" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.String")
                    => IntrinsicId.Type_GetType,

                // System.Type.GetConstructor Type[])
                // System.Type.GetConstructor BindingFlags, Type[])
                // System.Type.GetConstructor BindingFlags, Binder, Type[], ParameterModifier [])
                // System.Type.GetConstructor BindingFlags, Binder, CallingConventions, Type[], ParameterModifier [])
                "GetConstructor" when calledMethod.IsDeclaredOnType("System.Type")
                    && !calledMethod.IsStatic()
                    => IntrinsicId.Type_GetConstructor,

                // System.Type.GetConstructors(BindingFlags)
                "GetConstructors" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Reflection.BindingFlags")
                    && calledMethod.HasMetadataParametersCount(1)
                    && !calledMethod.IsStatic()
                    => IntrinsicId.Type_GetConstructors__BindingFlags,

                // System.Type.GetMethod(string)
                // System.Type.GetMethod(string, BindingFlags)
                // System.Type.GetMethod(string, Type[])
                // System.Type.GetMethod(string, Type[], ParameterModifier[])
                // System.Type.GetMethod(string, BindingFlags, Type[])
                // System.Type.GetMethod(string, BindingFlags, Binder, Type[], ParameterModifier[])
                // System.Type.GetMethod(string, BindingFlags, Binder, CallingConventions, Type[], ParameterModifier[])
                // System.Type.GetMethod(string, int, Type[])
                // System.Type.GetMethod(string, int, Type[], ParameterModifier[]?)
                // System.Type.GetMethod(string, int, BindingFlags, Binder?, Type[], ParameterModifier[]?)
                // System.Type.GetMethod(string, int, BindingFlags, Binder?, CallingConventions, Type[], ParameterModifier[]?)
                "GetMethod" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Type_GetMethod,

                // System.Type.GetMethods(BindingFlags)
                "GetMethods" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasMetadataParametersCount(1)
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Reflection.BindingFlags")
                    => IntrinsicId.Type_GetMethods__BindingFlags,

                // System.Type.GetField(string)
                // System.Type.GetField(string, BindingFlags)
                "GetField" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Type_GetField,

                // System.Type.GetFields(BindingFlags)
                "GetFields" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasMetadataParametersCount(1)
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Reflection.BindingFlags")
                    => IntrinsicId.Type_GetFields__BindingFlags,

                // System.Type.GetEvent(string)
                // System.Type.GetEvent(string, BindingFlags)
                "GetEvent" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Type_GetEvent,

                // System.Type.GetEvents(BindingFlags)
                "GetEvents" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasMetadataParametersCount(1)
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Reflection.BindingFlags")
                    => IntrinsicId.Type_GetEvents__BindingFlags,

                // System.Type.GetNestedType(string)
                // System.Type.GetNestedType(string, BindingFlags)
                "GetNestedType" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Type_GetNestedType,

                // System.Type.GetNestedTypes(BindingFlags)
                "GetNestedTypes" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasMetadataParametersCount(1)
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Reflection.BindingFlags")
                    => IntrinsicId.Type_GetNestedTypes__BindingFlags,

                // System.Type.GetMember(string)
                // System.Type.GetMember(string, BindingFlags)
                // System.Type.GetMember(string, MemberTypes, BindingFlags)
                "GetMember" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    && (calledMethod.HasMetadataParametersCount(1) ||
                    (calledMethod.HasMetadataParametersCount(2) && calledMethod.HasParameterOfType((ParameterIndex)2, "System.Reflection.BindingFlags")) ||
                    (calledMethod.HasMetadataParametersCount(3) && calledMethod.HasParameterOfType((ParameterIndex)3, "System.Reflection.BindingFlags")))
                    => IntrinsicId.Type_GetMember,

                // System.Type.GetMembers(BindingFlags)
                "GetMembers" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasMetadataParametersCount(1)
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Reflection.BindingFlags")
                    => IntrinsicId.Type_GetMembers__BindingFlags,

                // System.Type.GetInterface(string)
                // System.Type.GetInterface(string, bool)
                "GetInterface" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    && (calledMethod.HasMetadataParametersCount(1) ||
                    (calledMethod.HasMetadataParametersCount(2) && calledMethod.HasParameterOfType((ParameterIndex)2, "System.Boolean")))
                    => IntrinsicId.Type_GetInterface,

                "GetInterfaces" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasMetadataParametersCount(0)
                    => IntrinsicId.Type_GetInterfaces,

                // System.Type.AssemblyQualifiedName
                "get_AssemblyQualifiedName" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && !calledMethod.HasMetadataParameters()
                    => IntrinsicId.Type_get_AssemblyQualifiedName,

                // System.Type.UnderlyingSystemType
                "get_UnderlyingSystemType" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && !calledMethod.HasMetadataParameters()
                    => IntrinsicId.Type_get_UnderlyingSystemType,

                // System.Type.BaseType
                "get_BaseType" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && !calledMethod.HasMetadataParameters()
                    => IntrinsicId.Type_get_BaseType,

                // System.Type.GetProperty(string)
                // System.Type.GetProperty(string, BindingFlags)
                // System.Type.GetProperty(string, Type)
                // System.Type.GetProperty(string, Type[])
                // System.Type.GetProperty(string, Type, Type[])
                // System.Type.GetProperty(string, Type, Type[], ParameterModifier[])
                // System.Type.GetProperty(string, BindingFlags, Binder, Type, Type[], ParameterModifier[])
                "GetProperty" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Type_GetProperty,

                // System.Type.GetProperties(BindingFlags)
                "GetProperties" when calledMethod.IsDeclaredOnType("System.Type")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Reflection.BindingFlags")
                    && calledMethod.HasMetadataParametersCount(1)
                    => IntrinsicId.Type_GetProperties__BindingFlags,

                // static System.Object.GetType()
                "GetType" when calledMethod.IsDeclaredOnType("System.Object")
                    => IntrinsicId.Object_GetType,

                ".ctor" when calledMethod.IsDeclaredOnType("System.Reflection.TypeDelegator")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Type")
                    => IntrinsicId.TypeDelegator_Ctor,

                "Empty" when calledMethod.IsDeclaredOnType("System.Array")
                    => IntrinsicId.Array_Empty,

                // static System.Array.CreateInstance(System.Type type, int length)
                "CreateInstance" when calledMethod.IsDeclaredOnType("System.Array")
                    && calledMethod.HasMetadataParametersCount(2)
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.Int32")
                    => IntrinsicId.Array_CreateInstance,

                // static System.Activator.CreateInstance(System.Type type)
                // static System.Activator.CreateInstance(System.Type type, bool nonPublic)
                // static System.Activator.CreateInstance(System.Type type, params object?[]? args)
                // static System.Activator.CreateInstance(System.Type type, object?[]? args, object?[]? activationAttributes)
                // static System.Activator.CreateInstance(System.Type type, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder? binder, object?[]? args, System.Globalization.CultureInfo? culture)
                // static System.Activator.CreateInstance(System.Type type, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder? binder, object?[]? args, System.Globalization.CultureInfo? culture, object?[]? activationAttributes) { throw null; }
                "CreateInstance" when calledMethod.IsDeclaredOnType("System.Activator")
                    && !calledMethod.HasGenericParameters()
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    => IntrinsicId.Activator_CreateInstance__Type,

                // static System.Activator.CreateInstance(string assemblyName, string typeName)
                // static System.Activator.CreateInstance(string assemblyName, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder? binder, object?[]? args, System.Globalization.CultureInfo? culture, object?[]? activationAttributes)
                // static System.Activator.CreateInstance(string assemblyName, string typeName, object?[]? activationAttributes)
                "CreateInstance" when calledMethod.IsDeclaredOnType("System.Activator")
                    && !calledMethod.HasGenericParameters()
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.String")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Activator_CreateInstance__AssemblyName_TypeName,

                // static System.Activator.CreateInstanceFrom(string assemblyFile, string typeName)
                // static System.Activator.CreateInstanceFrom(string assemblyFile, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder? binder, object? []? args, System.Globalization.CultureInfo? culture, object? []? activationAttributes)
                // static System.Activator.CreateInstanceFrom(string assemblyFile, string typeName, object? []? activationAttributes)
                "CreateInstanceFrom" when calledMethod.IsDeclaredOnType("System.Activator")
                    && !calledMethod.HasGenericParameters()
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.String")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Activator_CreateInstanceFrom,

                // System.AppDomain.CreateInstance(string assemblyName, string typeName)
                // System.AppDomain.CreateInstance(string assemblyName, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder? binder, object? []? args, System.Globalization.CultureInfo? culture, object? []? activationAttributes)
                // System.AppDomain.CreateInstance(string assemblyName, string typeName, object? []? activationAttributes)
                "CreateInstance" when calledMethod.IsDeclaredOnType("System.AppDomain")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    && calledMethod.HasParameterOfType((ParameterIndex)2, "System.String")
                    => IntrinsicId.AppDomain_CreateInstance,

                // System.AppDomain.CreateInstanceAndUnwrap(string assemblyName, string typeName)
                // System.AppDomain.CreateInstanceAndUnwrap(string assemblyName, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder? binder, object? []? args, System.Globalization.CultureInfo? culture, object? []? activationAttributes)
                // System.AppDomain.CreateInstanceAndUnwrap(string assemblyName, string typeName, object? []? activationAttributes)
                "CreateInstanceAndUnwrap" when calledMethod.IsDeclaredOnType("System.AppDomain")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    && calledMethod.HasParameterOfType((ParameterIndex)2, "System.String")
                    => IntrinsicId.AppDomain_CreateInstanceAndUnwrap,

                // System.AppDomain.CreateInstanceFrom(string assemblyFile, string typeName)
                // System.AppDomain.CreateInstanceFrom(string assemblyFile, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder? binder, object? []? args, System.Globalization.CultureInfo? culture, object? []? activationAttributes)
                // System.AppDomain.CreateInstanceFrom(string assemblyFile, string typeName, object? []? activationAttributes)
                "CreateInstanceFrom" when calledMethod.IsDeclaredOnType("System.AppDomain")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    && calledMethod.HasParameterOfType((ParameterIndex)2, "System.String")
                    => IntrinsicId.AppDomain_CreateInstanceFrom,

                // System.AppDomain.CreateInstanceFromAndUnwrap(string assemblyFile, string typeName)
                // System.AppDomain.CreateInstanceFromAndUnwrap(string assemblyFile, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder? binder, object? []? args, System.Globalization.CultureInfo? culture, object? []? activationAttributes)
                // System.AppDomain.CreateInstanceFromAndUnwrap(string assemblyFile, string typeName, object? []? activationAttributes)
                "CreateInstanceFromAndUnwrap" when calledMethod.IsDeclaredOnType("System.AppDomain")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    && calledMethod.HasParameterOfType((ParameterIndex)2, "System.String")
                    => IntrinsicId.AppDomain_CreateInstanceFromAndUnwrap,

                // System.Reflection.Assembly.CreateInstance(string typeName)
                // System.Reflection.Assembly.CreateInstance(string typeName, bool ignoreCase)
                // System.Reflection.Assembly.CreateInstance(string typeName, bool ignoreCase, BindingFlags bindingAttr, Binder? binder, object []? args, CultureInfo? culture, object []? activationAttributes)
                "CreateInstance" when calledMethod.IsDeclaredOnType("System.Reflection.Assembly")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Assembly_CreateInstance,

                // System.Reflection.Assembly.GetType(string)
                // System.Reflection.Assembly.GetType(string, bool)
                // System.Reflection.Assembly.GetType(string, bool, bool)
                "GetType" when calledMethod.IsDeclaredOnType("System.Reflection.Assembly")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Assembly_GetType,

                // System.Reflection.Assembly.Location getter
                "get_Location" when calledMethod.IsDeclaredOnType("System.Reflection.Assembly")
                    => IntrinsicId.Assembly_get_Location,

                // System.Reflection.Assembly.GetFile(string)
                "GetFile" when calledMethod.IsDeclaredOnType("System.Reflection.Assembly")
                    && calledMethod.HasParameterOfType((ParameterIndex)1, "System.String")
                    => IntrinsicId.Assembly_GetFile,

                // System.Reflection.Assembly.GetFiles()
                // System.Reflection.Assembly.GetFiles(bool)
                "GetFiles" when calledMethod.IsDeclaredOnType("System.Reflection.Assembly")
                    && (calledMethod.HasMetadataParametersCount(0) || calledMethod.HasParameterOfType((ParameterIndex)1, "System.Boolean"))
                    => IntrinsicId.Assembly_GetFiles,

                // System.Reflection.AssemblyName.CodeBase getter
                "get_CodeBase" when calledMethod.IsDeclaredOnType("System.Reflection.AssemblyName")
                    => IntrinsicId.AssemblyName_get_CodeBase,

                // System.Reflection.AssemblyName.EscapedCodeBase getter
                "get_EscapedCodeBase" when calledMethod.IsDeclaredOnType("System.Reflection.AssemblyName")
                    => IntrinsicId.AssemblyName_get_EscapedCodeBase,

                // System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor(RuntimeTypeHandle type)
                "RunClassConstructor" when calledMethod.IsDeclaredOnType("System.Runtime.CompilerServices.RuntimeHelpers")
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.RuntimeTypeHandle")
                    => IntrinsicId.RuntimeHelpers_RunClassConstructor,

                // System.Reflection.MethodInfo.MakeGenericMethod(Type[] typeArguments)
                "MakeGenericMethod" when calledMethod.IsDeclaredOnType("System.Reflection.MethodInfo")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasMetadataParametersCount(1)
                    => IntrinsicId.MethodInfo_MakeGenericMethod,

                // static System.Nullable.GetUnderlyingType
                "GetUnderlyingType" when calledMethod.IsDeclaredOnType("System.Nullable")
                    && calledMethod.IsStatic()
                    && calledMethod.HasParameterOfType((ParameterIndex)0, "System.Type")
                    => IntrinsicId.Nullable_GetUnderlyingType,

                // static System.Delegate.Method getter
                "get_Method" when calledMethod.IsDeclaredOnType("System.Delegate")
                    && calledMethod.HasImplicitThis()
                    && calledMethod.HasMetadataParametersCount(0)
                    => IntrinsicId.Delegate_get_Method,

                // static System.Runtime.InteropServices.TypeMapping.GetOrCreateExternalTypeMapping<T>()
                "GetOrCreateExternalTypeMapping" when calledMethod.IsDeclaredOnType("System.Runtime.InteropServices.TypeMapping")
                    && calledMethod.IsStatic()
                    && calledMethod.HasGenericArgumentsCount(1)
                    => IntrinsicId.TypeMapping_GetOrCreateExternalTypeMapping,

                // static System.Runtime.InteropServices.TypeMapping.GetOrCreateProxyTypeMapping<T>()
                "GetOrCreateProxyTypeMapping" when calledMethod.IsDeclaredOnType("System.Runtime.InteropServices.TypeMapping")
                    && calledMethod.IsStatic()
                    && calledMethod.HasGenericArgumentsCount(1)
                    => IntrinsicId.TypeMapping_GetOrCreateProxyTypeMapping,

                _ => IntrinsicId.None,
            };
        }
    }
}
File: src\runtime\src\tools\illink\src\ILLink.Shared\TrimAnalysis\Intrinsics.cs	Web Access
Project: src\runtime\src\tools\illink\src\ILLink.RoslynAnalyzer\ILLink.RoslynAnalyzer.csproj (ILLink.RoslynAnalyzer)