641 lines
26 KiB
C#
641 lines
26 KiB
C#
using System;
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using System.CodeDom;
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using System.CodeDom.Compiler;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices.ComTypes;
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using System.Text;
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using Kaitai;
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using Microsoft.CSharp;
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// ReSharper disable BitwiseOperatorOnEnumWithoutFlags
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namespace CodeGenerator {
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using CParamDeclExp = CodeParameterDeclarationExpression;
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using CArgRefExp = CodeArgumentReferenceExpression;
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using CThisRefExp = CodeThisReferenceExpression;
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using CFieldRefExp = CodeFieldReferenceExpression;
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public static class Program {
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private static BlendFile blendfile;
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private static readonly StringBuilder sb = new();
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private const string OutPath = @"GeneratedOutput";
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private const string Namespace = "BlendFile";
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private static HashSet<string> customTypes;
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private static void Log(string message) {
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sb.AppendLine(message);
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Console.WriteLine(message);
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}
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public static void Main(string[] args) {
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Log("Reading blend file");
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ReadBlendFile();
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Log("Generating C# code...");
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Log("Pass 1: Generating types");
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CodeNamespace ns = GenerateTypes(out var rootNs);
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Log("Pass 2: Writing out code");
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OutputCodeFiles(ns);
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OutputCodeFiles(rootNs, false);
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Log("Finished generating C# code!");
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File.AppendAllText("Log.txt", sb.ToString());
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}
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private static void ReadBlendFile() {
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Log("Reading empty.blend file");
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blendfile = BlendFile.FromFile("empty.blend");
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Log($"Header: Blender v{blendfile.Hdr.Version} {blendfile.Hdr.Endian}\n" +
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$"DataBlocks: {blendfile.Blocks.Count}\n" +
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$"DNA1: {blendfile.SdnaStructs.Count} structures\n");
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}
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private static CodeNamespace GenerateTypes(out CodeNamespace additionalNs) {
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CodeNamespace rootNs = new CodeNamespace(Namespace);
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rootNs.Types.Add(GenerateDNAFieldAttributeType());
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rootNs.Types.Add(GenerateDNAClassAttributeType());
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CodeNamespace ns = new CodeNamespace(Namespace+".DNA");
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ns.Imports.Add(new(rootNs.Name));
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customTypes = new();
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foreach (var type in blendfile.SdnaStructs) {
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Log($"Generating struct {type.Type}");
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bool referenceSelf = false;
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bool referencePointer = false;
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//Add the type to the custom types list
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customTypes.Add(type.Type);
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//Create a new type declaration
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var ctd = new CodeTypeDeclaration(type.Type);
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ctd.CustomAttributes.Add(new CodeAttributeDeclaration("DNAClassAttribute",
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new CodeAttributeArgument(new CodePrimitiveExpression(type.IdxType)),
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new CodeAttributeArgument(new CodePrimitiveExpression(type.Type))
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));
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foreach (var field in type.Fields) {
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if (field.Name.Contains("*")) {
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referencePointer = true;
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}
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if (field.Type.Contains(type.Type)) {
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referenceSelf = true;
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}
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}
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if (referenceSelf || referencePointer) {
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Log("Struct contains references");
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ctd.IsClass = true;
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}
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else {
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ctd.IsStruct = true;
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}
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//Add the class to the namespace
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ns.Types.Add(ctd);
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var totalSize = 0;
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//Add the fields to the class
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Log($"Fields: {type.Fields.Count}");
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for (var index = 0; index < type.Fields.Count; index++) {
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var field = type.Fields[index];
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CodeMemberField cmf;
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string name = field.Name;
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if (name.Contains("()")) continue;
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if (name.Contains("[")) {
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Log($"Generating array field {field.Name}");
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cmf = CreateArrayMemberField(field);
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}
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else {
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Log($"Generating field {field.Name}");
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cmf = CreateMemberField(field);
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}
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var size = 0;
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var attributes = GenerateDNAFieldAttribute(index, field, field.M_Parent.M_Parent, totalSize, out size);
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totalSize += size;
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cmf.CustomAttributes.Add(attributes);
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ctd.Members.Add(cmf);
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}
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ctd.CustomAttributes[0].Arguments.Add(new CodeAttributeArgument(new CodePrimitiveExpression(totalSize)));
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Log("Generating Parameterless constructor");
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if(ctd.Members.Count > 0)
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ctd.Members.Add(GenerateParameterlessConstructor(type, ctd));
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Log("Generating Default Constructor");
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ctd.Members.Add(GenerateConstructor(type, ctd));
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Log("Finished generating struct");
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}
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additionalNs = rootNs;
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return ns;
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}
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private static CodeTypeDeclaration GenerateDNAFieldAttributeType() {
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var ctd = new CodeTypeDeclaration("DNAFieldAttribute") {
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IsClass = true,
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Attributes = MemberAttributes.Public
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};
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ctd.BaseTypes.Add(new CodeTypeReference(typeof(Attribute)));
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ctd.CustomAttributes.Add(new("AttributeUsage",
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new CodeAttributeArgument(new CodeSnippetExpression("AttributeTargets.Field"))));
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var cmf = new CodeMemberField(typeof(int), "_size") {
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Attributes = MemberAttributes.Private
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};
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ctd.Members.Add(cmf);
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var cmp = new CodeMemberProperty() {
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Name = "Size",
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Type = new CodeTypeReference(typeof(int)),
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Attributes = MemberAttributes.Public,
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(new CFieldRefExp(new CThisRefExp(), "_size"), new CArgRefExp("value"))
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},
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CFieldRefExp(new CThisRefExp(), "_size"))
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}
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};
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ctd.Members.Add(cmp);
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cmf = new CodeMemberField(typeof(string), "_originalType") {
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Attributes = MemberAttributes.Private
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};
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ctd.Members.Add(cmf);
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cmp = new CodeMemberProperty() {
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Name = "OriginalType",
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Type = new CodeTypeReference(typeof(string)),
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Attributes = MemberAttributes.Public,
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(new CFieldRefExp(new CThisRefExp(), "_originalType"), new CArgRefExp("value"))
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},
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CFieldRefExp(new CThisRefExp(), "_originalType"))
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}
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};
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ctd.Members.Add(cmp);
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cmf = new CodeMemberField(typeof(string), "_originalName") {
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Attributes = MemberAttributes.Private
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};
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ctd.Members.Add(cmf);
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cmp = new CodeMemberProperty() {
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Name = "OriginalName",
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Type = new CodeTypeReference(typeof(string)),
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Attributes = MemberAttributes.Public,
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(
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new CFieldRefExp(new CThisRefExp(), "_originalName"), new CArgRefExp("value"))
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},
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CFieldRefExp(new CThisRefExp(), "_originalName"))
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}
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};
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ctd.Members.Add(cmp);
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cmf = new CodeMemberField(typeof(int), "_originalIndex") {
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Attributes = MemberAttributes.Private
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};
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ctd.Members.Add(cmf);
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cmp = new CodeMemberProperty() {
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Name = "OriginalIndex",
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Type = new CodeTypeReference(typeof(int)),
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Attributes = MemberAttributes.Public,
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(new CFieldRefExp(new CThisRefExp(), "_originalIndex"), new CArgRefExp("value"))
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},
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CFieldRefExp(new CThisRefExp(), "_originalIndex"))
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}
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};
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ctd.Members.Add(cmp);
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cmp = new CodeMemberProperty() {
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Name = "UnderlyingType",
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Type = new CodeTypeReference(typeof(string)),
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Attributes = MemberAttributes.Public,
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CodeSnippetExpression("_originalType"))
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},
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(new CFieldRefExp(new CThisRefExp(), "_originalType"), new CArgRefExp("value"))
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}
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};
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ctd.Members.Add(cmp);
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cmf = new CodeMemberField(typeof(bool), "_isPointer") {
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Attributes = MemberAttributes.Private
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};
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ctd.Members.Add(cmf);
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cmp = new CodeMemberProperty() {
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Name = "IsPointer",
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Type = new CodeTypeReference(typeof(bool)),
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Attributes = MemberAttributes.Public,
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CodeSnippetExpression("_isPointer"))
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},
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(new CFieldRefExp(new CThisRefExp(), "_isPointer"), new CArgRefExp("value"))
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}
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};
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ctd.Members.Add(cmp);
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cmf = new CodeMemberField(typeof(int), "_memoryOffset") {
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Attributes = MemberAttributes.Private
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};
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cmp = new CodeMemberProperty() {
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Name = "MemoryOffset",
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Type = new CodeTypeReference(typeof(int)),
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Attributes = MemberAttributes.Public,
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CodeSnippetExpression("0"))
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},
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(new CFieldRefExp(new CThisRefExp(), "_memoryOffset"), new CArgRefExp("value"))
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}
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};
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ctd.Members.Add(cmp);
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var cc = new CodeConstructor() { Attributes = MemberAttributes.Public };
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cc.Parameters.AddRange(new CParamDeclExp[] {
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new(typeof(int), "originalIndex"),
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new(typeof(string), "originalType"),
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new(typeof(string), "originalName"),
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new(typeof(string), "underlyingType"),
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new(typeof(int), "size"),
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new(typeof(bool), "isPointer"),
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new(typeof(int), "memoryOffset")
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});
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cc.Statements.AddRange(new CodeAssignStatement[] {
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new(new CFieldRefExp(new CThisRefExp(), "OriginalIndex"), new CArgRefExp("originalIndex")),
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new(new CFieldRefExp(new CThisRefExp(), "OriginalType"), new CArgRefExp("originalType")),
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new(new CFieldRefExp(new CThisRefExp(), "OriginalName"), new CArgRefExp("originalName")),
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new(new CFieldRefExp(new CThisRefExp(), "OriginalType"), new CArgRefExp("underlyingType")),
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new(new CFieldRefExp(new CThisRefExp(), "Size"), new CArgRefExp("size")),
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new(new CFieldRefExp(new CThisRefExp(), "IsPointer"), new CArgRefExp("isPointer")),
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new(new CFieldRefExp(new CThisRefExp(), "MemoryOffset"), new CArgRefExp("memoryOffset"))
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});
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ctd.Members.Add(cc);
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return ctd;
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}
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private static CodeTypeDeclaration GenerateDNAClassAttributeType() {
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var ctd = new CodeTypeDeclaration("DNAClassAttribute") {
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IsClass = true,
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Attributes = MemberAttributes.Public
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};
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ctd.BaseTypes.Add(new CodeTypeReference(typeof(Attribute)));
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ctd.CustomAttributes.Add(new("AttributeUsage",
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new CodeAttributeArgument(new CodeSnippetExpression("AttributeTargets.Class | AttributeTargets.Struct"))));
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var cmf = new CodeMemberField(typeof(int), "_originalIndex") {
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Attributes = MemberAttributes.Private
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};
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ctd.Members.Add(cmf);
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var cmp = new CodeMemberProperty() {
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Name = "OriginalIndex",
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Type = new CodeTypeReference(typeof(int)),
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Attributes = MemberAttributes.Public,
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(new CFieldRefExp(new CThisRefExp(), "_originalIndex"), new CArgRefExp("value"))
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},
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CFieldRefExp(new CThisRefExp(), "_originalIndex"))
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}
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};
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ctd.Members.Add(cmp);
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cmf = new CodeMemberField(typeof(string), "_originalName") {
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Attributes = MemberAttributes.Private
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};
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ctd.Members.Add(cmf);
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cmp = new CodeMemberProperty() {
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Name = "OriginalName",
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Type = new CodeTypeReference(typeof(string)),
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Attributes = MemberAttributes.Public,
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(new CFieldRefExp(new CThisRefExp(), "_originalName"), new CArgRefExp("value"))
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},
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CFieldRefExp(new CThisRefExp(), "_originalName"))
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}
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};
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ctd.Members.Add(cmp);
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cmf = new CodeMemberField(typeof(int), "_size") {
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Attributes = MemberAttributes.Private
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};
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ctd.Members.Add(cmf);
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cmp = new CodeMemberProperty() {
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Name = "Size",
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Type = new CodeTypeReference(typeof(int)),
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Attributes = MemberAttributes.Public,
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HasGet = true,
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GetStatements = {
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new CodeMethodReturnStatement(new CodeSnippetExpression("_size"))
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},
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HasSet = true,
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SetStatements = {
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new CodeAssignStatement(new CFieldRefExp(new CThisRefExp(), "_size"), new CArgRefExp("value"))
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}
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};
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ctd.Members.Add(cmp);
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var cc = new CodeConstructor() { Attributes = MemberAttributes.Public };
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cc.Parameters.AddRange(new CParamDeclExp[] {
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new(typeof(int), "originalIndex"),
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new(typeof(string), "originalName"),
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new(typeof(int), "size")
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});
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cc.Statements.AddRange(new CodeAssignStatement[] {
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new(new CFieldRefExp(new CThisRefExp(), "OriginalIndex"), new CArgRefExp("originalIndex")),
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new(new CFieldRefExp(new CThisRefExp(), "OriginalName"), new CArgRefExp("originalName")),
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new(new CFieldRefExp(new CThisRefExp(), "Size"), new CArgRefExp("size"))
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});
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ctd.Members.Add(cc);
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return ctd;
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}
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private static CodeAttributeDeclaration GenerateDNAFieldAttribute(int index, BlendFile.DnaField field,
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BlendFile.Dna1Body body, int offset, out int size) {
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string t;
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size = body.Lengths[field.IdxType];
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bool isPointer = false;
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if (field.Name.StartsWith('*'))
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{
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size = 8;
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isPointer = true;
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}
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if (field.Name.Contains('[')) {
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CodeMemberField amf = CreateArrayMemberField(field);
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var sb = new StringBuilder();
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sb.Append(amf.Type.BaseType);
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sb.Append("[");
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for(int i=1; i<amf.Type.ArrayRank; i++) {
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sb.Append(",");
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}
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sb.Append("]");
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t = sb.ToString();
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var dimensions = GetArrayDimensions(field.Name);
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foreach(var dim in dimensions) {
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size *= dim;
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}
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} else
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{
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t = field.Type;
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}
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CodeAttributeDeclaration cad = new("DNAFieldAttribute");
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cad.Arguments.AddRange(new CodeAttributeArgumentCollection() {
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new(new CodePrimitiveExpression(index)),
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new(new CodePrimitiveExpression(field.Type)),
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new(new CodePrimitiveExpression(field.Name)),
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new(new CodePrimitiveExpression(t)),
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new(new CodePrimitiveExpression(size)),
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new(new CodePrimitiveExpression(isPointer)),
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new(new CodePrimitiveExpression(offset))
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});
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return cad;
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}
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private static CodeMemberField CreateMemberField(BlendFile.DnaField field) {
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Type t = Type.GetType(field.Type.ParseFType());
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CodeMemberField cmf;
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//Check if the type is a built-in type or a custom type
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if (t != null) cmf = new(t, field.Name.ParseFName()); //Built-in type
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else {
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cmf = new(new CodeTypeReference(field.Type), field.Name.ParseFName()); //Custom type
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customTypes.Add(field.Type);
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}
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cmf.Attributes = MemberAttributes.Public;
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return cmf;
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}
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private static CodeMemberField CreateArrayMemberField(BlendFile.DnaField field) {
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Type t = Type.GetType(field.Type.ParseFType());
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CodeMemberField cmf;
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// Parse all array dimensions
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var name = field.Name.ParseFName();
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var dimensions = GetArrayDimensions(name);
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// Get clean field name (without array brackets)
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name = field.Name.ParseFName().Substring(0, field.Name.IndexOf('['));
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//Check if the type is a built-in type or a custom type
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if (t != null) cmf = new(t, name); //Built-in type
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else {
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cmf = new(field.Type, name); //Custom type
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customTypes.Add(field.Type);
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}
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//Set the field attributes
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cmf.Attributes = MemberAttributes.Public;
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//Define the array type
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cmf.Type.ArrayElementType = new(field.Type.ParseFType() ?? field.Type);
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cmf.Type.ArrayRank = dimensions.Count;
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//Define the array initialization expression
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cmf.InitExpression = GenerateArrayInitExpression(cmf.Type, dimensions);
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return cmf;
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}
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private static List<int> GetArrayDimensions(string name)
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{
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var dimensions = new List<int>();
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int startIndex = 0;
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// Get all array dimensions
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while ((startIndex = name.IndexOf('[', startIndex)) != -1) {
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int endIndex = name.IndexOf(']', startIndex);
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string sizeStr = name.Substring(startIndex + 1, endIndex - startIndex - 1);
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if (int.TryParse(sizeStr, out int size)) {
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dimensions.Add(size);
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}
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startIndex = endIndex + 1;
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}
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return dimensions;
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}
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private static CodeExpression GenerateArrayInitExpression(CodeTypeReference type, IEnumerable<int> dimensions) {
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var dimValues = dimensions as int[] ?? dimensions.ToArray();
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string dims = string.Concat(dimValues.Take(dimValues.Count() - 1).Select(d => $"{d},"));
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dims += dimValues.Last();
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return new CodeSnippetExpression($"new {type.BaseType}[{dims}]");
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}
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private static CodeTypeConstructor GenerateStaticConstructor(CodeTypeDeclaration ctd) {
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CodeTypeConstructor ctc = new CodeTypeConstructor {
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Attributes = MemberAttributes.Static
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};
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ctc.Statements.AddRange(ctd.Members
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.OfType<CodeMemberField>()
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.Where(f => f.Type.ArrayRank > 0)
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.Select(f =>
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{
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var dims = new List<int>();
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for (int i = 0; i < f.Type.ArrayRank; i++) {
|
|
dims.Add(0);
|
|
}
|
|
return new CodeAssignStatement(
|
|
new CFieldRefExp(new CThisRefExp(), f.Name),
|
|
GenerateArrayInitExpression(f.Type, dims)
|
|
);
|
|
}).ToArray<CodeStatement>());
|
|
return ctc;
|
|
}
|
|
|
|
private static CodeConstructor GenerateConstructor(BlendFile.DnaStruct type, CodeTypeDeclaration ctd) {
|
|
//Create a normal constructor
|
|
CodeConstructor cc = new CodeConstructor {
|
|
Name = type.Type,
|
|
Attributes = MemberAttributes.Public,
|
|
ReturnType = new(type.Type)
|
|
};
|
|
|
|
//Add the parameters to the constructor
|
|
cc.Parameters.AddRange(ctd.Members
|
|
.OfType<CodeMemberField>()
|
|
.Select(f =>
|
|
{
|
|
var cpde = new CParamDeclExp(f.Type, f.Name) {
|
|
Direction = FieldDirection.In
|
|
};
|
|
return cpde;
|
|
}).ToArray());
|
|
|
|
//Assign the parameters to the respective fields
|
|
cc.Statements.AddRange(ctd.Members
|
|
.OfType<CodeMemberField>()
|
|
.Select(f => new CodeAssignStatement(
|
|
new CFieldRefExp(new CThisRefExp(), f.Name),
|
|
new CArgRefExp(f.Name))
|
|
).ToArray<CodeStatement>());
|
|
|
|
return cc;
|
|
}
|
|
|
|
private static CodeConstructor GenerateParameterlessConstructor(BlendFile.DnaStruct type, CodeTypeDeclaration ctd) {
|
|
//Create a normal constructor
|
|
CodeConstructor cc = new CodeConstructor {
|
|
Name = type.Type,
|
|
Attributes = MemberAttributes.Public,
|
|
ReturnType = new(type.Type)
|
|
};
|
|
|
|
//Assign the parameters to the respective fields
|
|
cc.Statements.AddRange(ctd.Members
|
|
.OfType<CodeMemberField>()
|
|
.Select(f => new CodeAssignStatement(
|
|
new CFieldRefExp(new CThisRefExp(), f.Name),
|
|
new CodeSnippetExpression("default"))
|
|
).ToArray<CodeStatement>());
|
|
|
|
return cc;
|
|
}
|
|
|
|
private static void SetupCCU(out CodeGeneratorOptions genOpts, out CSharpCodeProvider provider,
|
|
out CodeCompileUnit ccu) {
|
|
genOpts = new() {
|
|
BlankLinesBetweenMembers = false,
|
|
BracingStyle = "Block",
|
|
ElseOnClosing = true,
|
|
IndentString = " ",
|
|
VerbatimOrder = true
|
|
};
|
|
provider = new();
|
|
//var date = DateTime.Now.ToString(CultureInfo.InvariantCulture);
|
|
|
|
CodeNamespace globalNs = new CodeNamespace();
|
|
//CodeComment comment = new CodeComment("Automatically generated by BlenderSharp at " + date, false);
|
|
//globalNs.Comments.Add(new(comment));
|
|
|
|
globalNs.Imports.Add(new("System"));
|
|
|
|
ccu = new();
|
|
ccu.Namespaces.Add(globalNs);
|
|
}
|
|
|
|
private static void OutputCodeFiles(CodeNamespace ns, bool outputExtraTypes = true) {
|
|
string rootPath = Path.GetDirectoryName(GetOutputPath(ns, ""));
|
|
if (!Path.Exists(rootPath)) Directory.CreateDirectory(rootPath!);
|
|
SetupCCU(out var codeGeneratorOptions, out var provider, out var ccu);
|
|
CodeNamespace tempNs = new CodeNamespace(ns.Name);
|
|
tempNs.Imports.AddRange(ns.Imports.Cast<CodeNamespaceImport>().ToArray());
|
|
ccu.Namespaces.Add(tempNs);
|
|
foreach (var type in ns.Types.OfType<CodeTypeDeclaration>()) {
|
|
tempNs.Types.Add(type);
|
|
Log($"Writing out {(type.IsStruct ? "struct" : "class")} {type.Name}");
|
|
using var sw = new StreamWriter(GetOutputPath(ns, type.Name));
|
|
provider.GenerateCodeFromCompileUnit(ccu, sw, codeGeneratorOptions);
|
|
tempNs.Types.Remove(type);
|
|
}
|
|
|
|
if (!outputExtraTypes) return;
|
|
customTypes.ExceptWith(ns.Types.OfType<CodeTypeDeclaration>().Select(t => t.Name));
|
|
foreach (var type in customTypes) {
|
|
Log($"Creating empty struct for missing {type}");
|
|
var ctd = new CodeTypeDeclaration(type) {
|
|
IsStruct = true,
|
|
Attributes = MemberAttributes.Public
|
|
};
|
|
tempNs.Types.Add(ctd);
|
|
}
|
|
using var finalsw = new StreamWriter(GetOutputPath(ns, "_ExtraTypes"));
|
|
provider.GenerateCodeFromCompileUnit(ccu, finalsw, codeGeneratorOptions);
|
|
}
|
|
|
|
private static string GetOutputPath(CodeNamespace ns, string typeName) {
|
|
return Path.Combine(OutPath, ns.Name, typeName + ".cs");
|
|
}
|
|
}
|
|
} |