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CppCodeGenerator.cs
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using System;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
using System.Linq;
using System.Text;
using ReClassNET.Logger;
using ReClassNET.Nodes;
namespace ReClassNET.CodeGenerator
{
class CppCodeGenerator : ICodeGenerator
{
private readonly Dictionary<Type, string> typeToTypedefMap = new Dictionary<Type, string>
{
[typeof(BoolNode)] = Program.Settings.TypeBool,
[typeof(DoubleNode)] = Program.Settings.TypeDouble,
[typeof(FloatNode)] = Program.Settings.TypeFloat,
[typeof(FunctionPtrNode)] = Program.Settings.TypeFunctionPtr,
[typeof(Int8Node)] = Program.Settings.TypeInt8,
[typeof(Int16Node)] = Program.Settings.TypeInt16,
[typeof(Int32Node)] = Program.Settings.TypeInt32,
[typeof(Int64Node)] = Program.Settings.TypeInt64,
[typeof(Matrix3x3Node)] = Program.Settings.TypeMatrix3x3,
[typeof(Matrix3x4Node)] = Program.Settings.TypeMatrix3x4,
[typeof(Matrix4x4Node)] = Program.Settings.TypeMatrix4x4,
[typeof(UInt8Node)] = Program.Settings.TypeUInt8,
[typeof(UInt16Node)] = Program.Settings.TypeUInt16,
[typeof(UInt32Node)] = Program.Settings.TypeUInt32,
[typeof(UInt64Node)] = Program.Settings.TypeUInt64,
[typeof(UTF8TextNode)] = Program.Settings.TypeUTF8Text,
[typeof(UTF8TextPtrNode)] = Program.Settings.TypeUTF8TextPtr,
[typeof(UTF16TextNode)] = Program.Settings.TypeUTF16Text,
[typeof(UTF16TextPtrNode)] = Program.Settings.TypeUTF16TextPtr,
[typeof(UTF32TextNode)] = Program.Settings.TypeUTF32Text,
[typeof(UTF32TextPtrNode)] = Program.Settings.TypeUTF32PtrText,
[typeof(Vector2Node)] = Program.Settings.TypeVector2,
[typeof(Vector3Node)] = Program.Settings.TypeVector3,
[typeof(Vector4Node)] = Program.Settings.TypeVector4
};
public Language Language => Language.Cpp;
public string GenerateCode(IEnumerable<ClassNode> classes, ILogger logger)
{
var sb = new StringBuilder();
sb.AppendLine($"// Created with {Constants.ApplicationName} by {Constants.Author}");
sb.AppendLine();
sb.AppendLine(
string.Join(
"\n\n",
OrderByInheritance(classes).Select(c =>
{
var csb = new StringBuilder();
csb.Append($"class {c.Name}");
bool skipFirstMember = false;
var inheritedFromNode = c.Nodes.FirstOrDefault() as ClassInstanceNode;
if (inheritedFromNode != null)
{
skipFirstMember = true;
csb.Append(" : public ");
csb.Append(inheritedFromNode.InnerNode.Name);
}
if (!string.IsNullOrEmpty(c.Comment))
{
csb.Append($" // {c.Comment}");
}
csb.AppendLine();
csb.AppendLine("{");
csb.AppendLine("public:");
csb.AppendLine(
string.Join(
"\n",
YieldMemberDefinitions(c.Nodes.Skip(skipFirstMember ? 1 : 0), logger)
.Select(m => MemberDefinitionToString(m))
.Select(s => "\t" + s)
)
);
var vtables = c.Nodes.OfType<VTableNode>();
if (vtables.Any())
{
csb.AppendLine();
csb.AppendLine(
string.Join(
"\n",
vtables.SelectMany(vt => vt.Nodes).OfType<VMethodNode>().Select(m => $"\tvirtual void {m.MethodName}();")
)
);
}
csb.Append($"}}; //Size: 0x{c.MemorySize:X04}");
return csb.ToString();
})
)
);
return sb.ToString();
}
private IEnumerable<ClassNode> OrderByInheritance(IEnumerable<ClassNode> classes)
{
Contract.Requires(classes != null);
Contract.Requires(Contract.ForAll(classes, c => c != null));
Contract.Ensures(Contract.Result<IEnumerable<ClassNode>>() != null);
var alreadySeen = new HashSet<ClassNode>();
return classes.SelectMany(c => YieldReversedHierarchy(c, alreadySeen)).Distinct();
}
private IEnumerable<ClassNode> YieldReversedHierarchy(ClassNode node, HashSet<ClassNode> alreadySeen)
{
Contract.Requires(node != null);
Contract.Requires(alreadySeen != null);
Contract.Requires(Contract.ForAll(alreadySeen, c => c != null));
Contract.Ensures(Contract.Result<IEnumerable<ClassNode>>() != null);
if (!alreadySeen.Add(node))
{
yield break;
}
foreach (var referenceNode in node.Nodes.OfType<BaseReferenceNode>())
{
foreach (var referencedNode in YieldReversedHierarchy(referenceNode.InnerNode as ClassNode, alreadySeen))
{
yield return referencedNode;
}
}
yield return node;
}
private IEnumerable<MemberDefinition> YieldMemberDefinitions(IEnumerable<BaseNode> members, ILogger logger)
{
Contract.Requires(members != null);
Contract.Requires(Contract.ForAll(members, m => m != null));
Contract.Ensures(Contract.Result<IEnumerable<MemberDefinition>>() != null);
Contract.Ensures(Contract.ForAll(Contract.Result<IEnumerable<MemberDefinition>>(), d => d != null));
int fill = 0;
int fillStart = 0;
foreach (var member in members.Where(m => !(m is VTableNode)))
{
if (member is BaseHexNode)
{
if (fill == 0)
{
fillStart = member.Offset.ToInt32();
}
fill += member.MemorySize;
continue;
}
if (fill != 0)
{
yield return new MemberDefinition(Program.Settings.TypePadding, fill, $"pad_{fillStart:X04}", fillStart, string.Empty);
fill = 0;
}
string type;
if (typeToTypedefMap.TryGetValue(member.GetType(), out type))
{
int count = 0;
if (member is BaseTextNode)
{
count = ((BaseTextNode)member).Length;
}
yield return new MemberDefinition(member, type, count);
}
else if (member is BitFieldNode)
{
switch (((BitFieldNode)member).Bits)
{
case 8:
type = Program.Settings.TypeUInt8;
break;
case 16:
type = Program.Settings.TypeUInt16;
break;
case 32:
type = Program.Settings.TypeUInt32;
break;
case 64:
type = Program.Settings.TypeUInt64;
break;
}
yield return new MemberDefinition(member, type);
}
else if (member is ClassInstanceArrayNode)
{
var instanceArray = (ClassInstanceArrayNode)member;
yield return new MemberDefinition(member, instanceArray.InnerNode.Name, instanceArray.Count);
}
else if (member is ClassInstanceNode)
{
yield return new MemberDefinition(member, ((ClassInstanceNode)member).InnerNode.Name);
}
else if (member is ClassPtrArrayNode)
{
var ptrArray = (ClassPtrArrayNode)member;
yield return new MemberDefinition(member, $"class {ptrArray.InnerNode.Name}*", ptrArray.Count);
}
else if (member is ClassPtrNode)
{
yield return new MemberDefinition(member, $"class {((ClassPtrNode)member).InnerNode.Name}*");
}
else
{
var generator = CustomCodeGenerator.GetGenerator(member, Language);
if (generator != null)
{
yield return generator.GetMemberDefinition(member, Language, logger);
}
else
{
logger.Log(LogLevel.Error, $"Skipping node with unhandled type: {member.GetType()}");
}
}
}
if (fill != 0)
{
yield return new MemberDefinition(Program.Settings.TypePadding, fill, $"pad_{fillStart:X04}", fillStart, string.Empty);
}
}
private string MemberDefinitionToString(MemberDefinition member)
{
Contract.Requires(member != null);
if (member.IsArray)
{
return $"{member.Type} {member.Name}[{member.ArrayCount}]; //0x{member.Offset:X04} {member.Comment}".Trim();
}
else
{
return $"{member.Type} {member.Name}; //0x{member.Offset:X04} {member.Comment}".Trim();
}
}
}
}