122 lines
4.5 KiB
C#
122 lines
4.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using Mono.Cecil;
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namespace zzzUnity.Burst.CodeGen
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{
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/// <summary>
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/// Provides some Cecil Extensions.
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/// </summary>
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#if BURST_COMPILER_SHARED
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public
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#else
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internal
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#endif
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static class CecilExtensions
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{
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public static void BuildAssemblyQualifiedName(this TypeReference type, StringBuilder builder)
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{
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if (type == null) throw new ArgumentNullException(nameof(type));
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TypeReference elementType;
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type.BuildReflectionFullName(builder, out elementType, assemblyQualified: true);
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if (!(elementType is GenericParameter))
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{
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// Recover assembly reference from scope first (e.g for types imported), otherwise from Module.Assembly
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var assemblyReference = elementType.Scope as AssemblyNameReference ?? elementType.Module.Assembly?.Name;
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builder.Append(", ").Append(assemblyReference);
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}
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}
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public static void BuildReflectionFullName(this TypeReference type, StringBuilder builder, bool assemblyQualified)
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{
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BuildReflectionFullName(type, builder, out _, assemblyQualified);
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}
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public static void BuildReflectionFullName(this TypeReference type, StringBuilder builder, out TypeReference elementType, bool assemblyQualified)
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{
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if (type == null) throw new ArgumentNullException(nameof(type));
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if (type is PointerType pointerType)
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{
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pointerType.ElementType.BuildReflectionFullName(builder, out elementType, assemblyQualified);
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builder.Append("*");
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}
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else if (type is PinnedType pinnedType)
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{
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pinnedType.ElementType.BuildReflectionFullName(builder, out elementType, assemblyQualified);
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builder.Append(" pinned");
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}
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else if (type is ByReferenceType byReferenceType)
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{
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byReferenceType.ElementType.BuildReflectionFullName(builder, out elementType, assemblyQualified);
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builder.Append("&");
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}
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else if (type is ArrayType arrayType)
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{
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arrayType.ElementType.BuildReflectionFullName(builder, out elementType, assemblyQualified);
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builder.Append("[]");
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}
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else if (type is GenericParameter genericParameter)
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{
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elementType = type;
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builder.Append(genericParameter.Type == GenericParameterType.Method ? "!!" : "!");
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builder.Append(genericParameter.Position);
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}
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else
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{
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elementType = type;
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var types = new List<TypeReference>();
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var declaringType = type;
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while (declaringType != null)
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{
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types.Add(declaringType);
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declaringType = declaringType.DeclaringType;
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}
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var baseType = types[types.Count - 1];
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if (!string.IsNullOrEmpty(baseType.Namespace))
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{
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builder.Append(baseType.Namespace);
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builder.Append(".");
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}
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builder.Append(baseType.Name);
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for (int i = types.Count - 2; i >= 0; i--)
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{
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var nestedType = types[i];
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builder.Append("+").Append(nestedType.Name);
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}
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if (elementType is GenericInstanceType genericInstanceType && genericInstanceType.HasGenericArguments)
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{
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builder.Append("[");
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for (var i = 0; i < genericInstanceType.GenericArguments.Count; i++)
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{
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var genericArgument = genericInstanceType.GenericArguments[i];
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if (i > 0)
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{
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builder.Append(",");
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}
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if (assemblyQualified)
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{
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builder.Append("[");
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genericArgument.BuildAssemblyQualifiedName(builder);
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builder.Append("]");
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}
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else
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{
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genericArgument.BuildReflectionFullName(builder, out var _, assemblyQualified: true);
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}
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}
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builder.Append("]");
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}
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}
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}
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}
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}
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