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Packages/com.singularitygroup.hotreload/Runtime/MonoMethod.cs
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196
Packages/com.singularitygroup.hotreload/Runtime/MonoMethod.cs
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#if ENABLE_MONO && (DEVELOPMENT_BUILD || UNITY_EDITOR)
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using System;
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using System.Runtime.InteropServices;
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namespace SingularityGroup.HotReload.Interop {
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//see _MonoMethod struct in class-internals.h
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[StructLayout(LayoutKind.Explicit, CharSet = CharSet.Auto, Size = 8 + sizeof(long) * 3 + 4)]
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internal unsafe struct MonoMethod64 {
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[FieldOffset(0)]
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public MethodAttributes flags;
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[FieldOffset(2)]
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public MethodImplAttributes iflags;
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[FieldOffset(4)]
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public uint token;
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[FieldOffset(8)]
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public void* klass;
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[FieldOffset(8 + sizeof(long))]
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public void* signature;
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[FieldOffset(8 + sizeof(long) * 2)]
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public char* name;
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/* this is used by the inlining algorithm */
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[FieldOffset(8 + sizeof(long) * 3)]
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public MonoMethodFlags monoMethodFlags;
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[FieldOffset(8 + sizeof(long) * 3 + 2)]
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public short slot;
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}
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[StructLayout(LayoutKind.Explicit, CharSet = CharSet.Auto, Size = 8 + sizeof(int) * 3 + 4)]
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internal unsafe struct MonoMethod32 {
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[FieldOffset(0)]
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public MethodAttributes flags;
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[FieldOffset(2)]
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public MethodImplAttributes iflags;
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[FieldOffset(4)]
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public uint token;
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[FieldOffset(8)]
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public void* klass;
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[FieldOffset(8 + sizeof(int))]
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public void* signature;
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[FieldOffset(8 + sizeof(int) * 2)]
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public char* name;
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/* this is used by the inlining algorithm */
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[FieldOffset(8 + sizeof(int) * 3)]
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public MonoMethodFlags monoMethodFlags;
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[FieldOffset(8 + sizeof(int) * 3 + 2)]
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public short slot;
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}
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//Corresponds to the bitflags of the _MonoMethod struct
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[Flags]
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internal enum MonoMethodFlags : ushort {
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inline_info = 1 << 0, //:1
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inline_failure = 1 << 1, //:1
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wrapper_type = 1 << 2, //:5
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string_ctor = 1 << 7, //:1
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save_lmf = 1 << 8, //:1
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dynamic = 1 << 9, //:1 /* created & destroyed during runtime */
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sre_method = 1 << 10, //:1 /* created at runtime using Reflection.Emit */
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is_generic = 1 << 11, //:1 /* whenever this is a generic method definition */
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is_inflated = 1 << 12, //:1 /* whether we're a MonoMethodInflated */
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skip_visibility = 1 << 13, //:1 /* whenever to skip JIT visibility checks */
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verification_success = 1 << 14, //:1 /* whether this method has been verified successfully.*/
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}
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[Flags]
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internal enum MethodImplAttributes : ushort {
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/// <summary><para>Specifies that the method implementation is in Microsoft intermediate language (MSIL).</para></summary>
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IL = 0,
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/// <summary><para>Specifies that the method is implemented in managed code. </para></summary>
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Managed = 0,
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/// <summary><para>Specifies that the method implementation is native.</para></summary>
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Native = 1,
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/// <summary><para>Specifies that the method implementation is in Optimized Intermediate Language (OPTIL).</para></summary>
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OPTIL = 2,
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/// <summary><para>Specifies flags about code type.</para></summary>
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CodeTypeMask = 3,
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/// <summary><para>Specifies that the method implementation is provided by the runtime.</para></summary>
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Runtime = 3,
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/// <summary><para>Specifies whether the method is implemented in managed or unmanaged code.</para></summary>
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ManagedMask = 4,
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/// <summary><para>Specifies that the method is implemented in unmanaged code.</para></summary>
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Unmanaged = 4,
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/// <summary><para>Specifies that the method cannot be inlined.</para></summary>
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NoInlining = 8,
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/// <summary><para>Specifies that the method is not defined.</para></summary>
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ForwardRef = 16, // 0x00000010
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/// <summary><para>Specifies that the method is single-threaded through the body. Static methods (Shared in Visual Basic) lock on the type, whereas instance methods lock on the instance. You can also use the C# <format type="text/html"><a href="656DA1A4-707E-4EF6-9C6E-6D13B646AF42">lock statement</a></format> or the Visual Basic <format type="text/html"><a href="14501703-298f-4d43-b139-c4b6366af176">SyncLock statement</a></format> for this purpose. </para></summary>
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Synchronized = 32, // 0x00000020
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/// <summary><para>Specifies that the method is not optimized by the just-in-time (JIT) compiler or by native code generation (see <format type="text/html"><a href="44bf97aa-a9a4-4eba-9a0d-cfaa6fc53a66">Ngen.exe</a></format>) when debugging possible code generation problems.</para></summary>
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NoOptimization = 64, // 0x00000040
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/// <summary><para>Specifies that the method signature is exported exactly as declared.</para></summary>
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PreserveSig = 128, // 0x00000080
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/// <summary><para>Specifies that the method should be inlined wherever possible.</para></summary>
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AggressiveInlining = 256, // 0x00000100
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/// <summary><para>Specifies an internal call.</para></summary>
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InternalCall = 4096, // 0x00001000
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/// <summary><para>Specifies a range check value.</para></summary>
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MaxMethodImplVal = 65535, // 0x0000FFFF
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}
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/// <summary><para>Specifies flags for method attributes. These flags are defined in the corhdr.h file.</para></summary>
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[Flags]
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internal enum MethodAttributes : ushort {
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/// <summary><para>Retrieves accessibility information.</para></summary>
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MemberAccessMask = 7,
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/// <summary><para>Indicates that the member cannot be referenced.</para></summary>
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PrivateScope = 0,
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/// <summary><para>Indicates that the method is accessible only to the current class.</para></summary>
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Private = 1,
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/// <summary><para>Indicates that the method is accessible to members of this type and its derived types that are in this assembly only.</para></summary>
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FamANDAssem = 2,
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/// <summary><para>Indicates that the method is accessible to any class of this assembly.</para></summary>
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Assembly = FamANDAssem | Private, // 0x00000003
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/// <summary><para>Indicates that the method is accessible only to members of this class and its derived classes.</para></summary>
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Family = 4,
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/// <summary><para>Indicates that the method is accessible to derived classes anywhere, as well as to any class in the assembly.</para></summary>
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FamORAssem = Family | Private, // 0x00000005
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/// <summary><para>Indicates that the method is accessible to any object for which this object is in scope.</para></summary>
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Public = Family | FamANDAssem, // 0x00000006
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/// <summary><para>Indicates that the method is defined on the type; otherwise, it is defined per instance.</para></summary>
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Static = 16, // 0x00000010
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/// <summary><para>Indicates that the method cannot be overridden.</para></summary>
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Final = 32, // 0x00000020
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/// <summary><para>Indicates that the method is virtual.</para></summary>
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Virtual = 64, // 0x00000040
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/// <summary><para>Indicates that the method hides by name and signature; otherwise, by name only.</para></summary>
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HideBySig = 128, // 0x00000080
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/// <summary><para>Indicates that the method can only be overridden when it is also accessible.</para></summary>
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CheckAccessOnOverride = 512, // 0x00000200
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/// <summary><para>Retrieves vtable attributes.</para></summary>
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VtableLayoutMask = 256, // 0x00000100
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/// <summary><para>Indicates that the method will reuse an existing slot in the vtable. This is the default behavior.</para></summary>
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ReuseSlot = 0,
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/// <summary><para>Indicates that the method always gets a new slot in the vtable.</para></summary>
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NewSlot = VtableLayoutMask, // 0x00000100
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/// <summary><para>Indicates that the class does not provide an implementation of this method.</para></summary>
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Abstract = 1024, // 0x00000400
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/// <summary><para>Indicates that the method is special. The name describes how this method is special.</para></summary>
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SpecialName = 2048, // 0x00000800
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/// <summary><para>Indicates that the method implementation is forwarded through PInvoke (Platform Invocation Services).</para></summary>
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PinvokeImpl = 8192, // 0x00002000
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/// <summary><para>Indicates that the managed method is exported by thunk to unmanaged code.</para></summary>
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UnmanagedExport = 8,
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/// <summary><para>Indicates that the common language runtime checks the name encoding.</para></summary>
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RTSpecialName = 4096, // 0x00001000
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/// <summary><para>Indicates a reserved flag for runtime use only.</para></summary>
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ReservedMask = 53248, // 0x0000D000
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/// <summary><para>Indicates that the method has security associated with it. Reserved flag for runtime use only.</para></summary>
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HasSecurity = 16384, // 0x00004000
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/// <summary><para>Indicates that the method calls another method containing security code. Reserved flag for runtime use only.</para></summary>
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RequireSecObject = 32768, // 0x00008000
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}
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}
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#endif
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