Add Unity Pipeline package support

This commit is contained in:
ud18010
2026-07-31 17:34:04 +08:00
parent d1a526094e
commit 786b7ffff9
590 changed files with 51995 additions and 2 deletions
@@ -0,0 +1,327 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using Unity.Pipeline.Models;
using UnityEngine;
namespace Unity.Pipeline.Compilation
{
/// <summary>
/// C# code evaluation service using shared Roslyn compilation infrastructure.
/// Wraps user code in Execute() method, compiles, and executes with result serialization.
/// Supports both Editor and Runtime compilation for desktop development builds.
/// </summary>
public static class EvalCodeCompiler
{
#if UNITY_EDITOR || (UNITY_STANDALONE && DEBUG)
// Fixed lines in the generated source before user code begins
private const int BaseCodeLineOffset = 11;
/// <summary>
/// Compile and execute code on Unity's main thread using Roslyn.
/// Eval is a MainThreadRequired command, so the server marshals the caller to the main
/// thread before invoking this; compilation + execution run synchronously here.
/// </summary>
public static EvalResponse CompileAndExecuteOnMainThread(string code, int timeoutMs, System.Diagnostics.Stopwatch stopwatch)
{
if (stopwatch == null)
{
stopwatch = System.Diagnostics.Stopwatch.StartNew();
}
try
{
// Compile on current thread
var compilationResult = CompileCodeToAssembly(code, timeoutMs, stopwatch);
if (!compilationResult.Success)
{
stopwatch.Stop();
return EvalResponse.EvalFailure(
"Compilation Failed",
"Code compilation failed",
stopwatch.ElapsedMilliseconds,
compilationResult.Diagnostics);
}
// Execute on current thread
var executionResult = ExecuteCompiledAssembly(compilationResult.Assembly);
stopwatch.Stop();
if (executionResult.Success)
{
return EvalResponse.EvalSuccess(
executionResult.ReturnValue,
executionResult.Output,
stopwatch.ElapsedMilliseconds);
}
else
{
return EvalResponse.EvalFailure(
executionResult.Error,
executionResult.ErrorDetails,
stopwatch.ElapsedMilliseconds);
}
}
catch (Exception ex)
{
stopwatch.Stop();
return EvalResponse.EvalFailure(
"Execution Failed",
ex.ToString(),
stopwatch.ElapsedMilliseconds);
}
}
/// <summary>
/// Compile C# code to assembly using shared RoslynCompilationService.
/// Thread-safe and can run on background thread.
/// </summary>
private static CompilationResult CompileCodeToAssembly(string userCode, int timeoutMs, System.Diagnostics.Stopwatch stopwatch)
{
var id = Guid.NewGuid().ToString("N").Substring(0, 8);
// Generate wrapper code
var sourceCode = BuildSourceCode(id, userCode, Application.isEditor);
// Use shared compilation service
var request = new CompilationRequest
{
SourceCode = sourceCode,
AssemblyName = $"PipelineEval_{id}",
LineNumberOffset = BaseCodeLineOffset // Adjust diagnostics for wrapper code
};
var result = RoslynCompilationService.Compile(request);
if (result.Success)
{
// Add execution context for eval-specific needs
return new CompilationResult
{
Success = true,
Assembly = result.Assembly,
ExecutionContext = new ExecutionContext
{
AssemblyId = id,
TypeName = $"PipelineEvaluation.PipelineEval_{id}",
MethodName = "Execute"
},
Diagnostics = result.Diagnostics
};
}
else
{
return new CompilationResult
{
Success = false,
Diagnostics = result.Diagnostics
};
}
}
/// <summary>
/// Generate C# source code wrapper for user code with conditional editor support.
/// </summary>
private static string BuildSourceCode(string id, string userCode, bool isEditorContext)
{
var editorUsing = isEditorContext ? "using UnityEditor;" : "";
return $@"using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
{editorUsing}
namespace PipelineEvaluation
{{
public static class PipelineEval_{id}
{{
public static object Execute()
{{
{userCode}
return null;
}}
}}
}}";
}
/// <summary>
/// Execute compiled assembly and return result.
/// Must run on Unity's main thread for safe Unity API access.
/// </summary>
private static ExecutionResult ExecuteCompiledAssembly(Assembly assembly)
{
try
{
var executionContext = GetExecutionContextFromAssembly(assembly);
var type = assembly.GetType(executionContext.TypeName);
var method = type?.GetMethod(executionContext.MethodName, BindingFlags.Public | BindingFlags.Static);
if (type == null)
{
return new ExecutionResult
{
Success = false,
Error = "Assembly Load Error",
ErrorDetails = $"Could not find type {executionContext.TypeName} in compiled assembly"
};
}
if (method == null)
{
return new ExecutionResult
{
Success = false,
Error = "Method Not Found",
ErrorDetails = $"Could not find method {executionContext.MethodName} in compiled type"
};
}
var result = method.Invoke(null, null);
return new ExecutionResult
{
Success = true,
ReturnValue = SerializeResult(result)
};
}
catch (TargetInvocationException tie) when (tie.InnerException != null)
{
return new ExecutionResult
{
Success = false,
Error = "Runtime Error",
ErrorDetails = tie.InnerException.Message,
StackTrace = tie.InnerException.StackTrace
};
}
catch (Exception ex)
{
return new ExecutionResult
{
Success = false,
Error = "Execution Error",
ErrorDetails = ex.Message,
StackTrace = ex.StackTrace
};
}
}
/// <summary>
/// Get execution context from compiled assembly.
/// </summary>
private static ExecutionContext GetExecutionContextFromAssembly(Assembly assembly)
{
// Find PipelineEvaluation types
var evalTypes = assembly.GetTypes()
.Where(t => t.Namespace == "PipelineEvaluation" && t.Name.StartsWith("PipelineEval_"))
.ToList();
if (evalTypes.Any())
{
var evalType = evalTypes.First();
return new ExecutionContext
{
TypeName = evalType.FullName,
MethodName = "Execute"
};
}
// Fallback
return new ExecutionContext
{
TypeName = "PipelineEvaluation.PipelineEval_Unknown",
MethodName = "Execute"
};
}
/// <summary>
/// Serialize result for JSON response.
/// </summary>
private static object SerializeResult(object value)
{
if (value == null) return null;
// Handle primitive types directly
if (value is string || value is bool || value is int || value is long || value is float || value is double)
return value;
// Handle Unity objects
if (value is UnityEngine.Object unityObj)
{
try
{
return Newtonsoft.Json.JsonConvert.DeserializeObject(UnityEngine.JsonUtility.ToJson(unityObj));
}
catch
{
return value.ToString();
}
}
// Handle other objects via JSON serialization
try
{
return Newtonsoft.Json.JsonConvert.DeserializeObject(
Newtonsoft.Json.JsonConvert.SerializeObject(value));
}
catch
{
return value.ToString();
}
}
/// <summary>
/// Result from compilation process.
/// </summary>
private class CompilationResult
{
public bool Success { get; set; }
public Assembly Assembly { get; set; }
public ExecutionContext ExecutionContext { get; set; }
public List<DiagnosticInfo> Diagnostics { get; set; } = new List<DiagnosticInfo>();
}
/// <summary>
/// Result from code execution.
/// </summary>
private class ExecutionResult
{
public bool Success { get; set; }
public object ReturnValue { get; set; }
public string Output { get; set; }
public string Error { get; set; }
public string ErrorDetails { get; set; }
public string StackTrace { get; set; }
}
/// <summary>
/// Execution context for compiled assembly.
/// </summary>
private class ExecutionContext
{
public string AssemblyId { get; set; }
public string TypeName { get; set; }
public string MethodName { get; set; }
}
#else
/// <summary>
/// Runtime compilation not supported on this platform.
/// Desktop development builds only (Windows/Mac/Linux).
/// </summary>
public static EvalResponse CompileAndExecuteOnMainThread(string code, int timeoutMs, System.Diagnostics.Stopwatch stopwatch)
{
return EvalResponse.EvalFailure(
"Platform Not Supported",
"Runtime code compilation only supported on Desktop development builds");
}
#endif
}
}
@@ -0,0 +1,11 @@
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@@ -0,0 +1,804 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using Unity.Pipeline.HotReload;
using Unity.Pipeline.Models;
using Unity.Pipeline.Threading;
using UnityEngine;
namespace Unity.Pipeline.Compilation
{
/// <summary>
/// Compiles hot reload source files using shared RoslynCompilationService.
/// Creates versioned DLLs and manages hot reload assembly lifecycle.
/// Fixed deadlock issue by adding main thread detection like EvalCodeCompiler.
/// </summary>
public static class HotReloadCompiler
{
#if UNITY_EDITOR || (UNITY_STANDALONE && DEBUG)
private static readonly Dictionary<string, int> _versionTracker = new();
private const string HotReloadTempDir = "Temp/HotReload";
/// <summary>
/// Compile a hot reload source file and apply the overrides immediately.
/// Fixed deadlock by detecting main thread and running synchronously when needed.
/// </summary>
/// <param name="filename">Hot reload file to compile</param>
/// <param name="assemblyDir">Optional directory to save compiled assembly to disk. If null, assembly stays in memory only.</param>
public static Task<HotReloadCompileResult> CompileAndApplyAsync(string filename, string assemblyDir = null)
{
// Hot reload commands are MainThreadRequired, so we are already on the main thread.
// Run synchronously (no background thread / dispatcher). Returns a completed Task for
// signature compatibility.
return Task.FromResult(CompileAndApplyOnMainThread(filename, assemblyDir));
}
public static string GetHotReloadPath(string filePath)
{
if (Path.IsPathRooted(filePath))
return filePath;
// Relative paths are resolved against the current working directory (the Unity
// project root). Override files can live in any folder; there is no special
// "HotReload" location.
return Path.GetFullPath(filePath);
}
/// <summary>
/// Compile and apply on main thread synchronously to avoid deadlocks.
/// </summary>
/// <param name="filename">Hot reload file to compile</param>
/// <param name="assemblyDir">Optional directory to save compiled assembly to disk. If null, assembly stays in memory only.</param>
public static HotReloadCompileResult CompileAndApplyOnMainThread(string filename, string assemblyDir = null)
{
var stopwatch = System.Diagnostics.Stopwatch.StartNew();
try
{
// Resolve the override file path (absolute, or relative to the project root).
var hotReloadPath = GetHotReloadPath(filename);
if (!File.Exists(hotReloadPath))
{
return HotReloadCompileResult.Failure(
"File Not Found",
$"Hot reload file not found: {hotReloadPath}",
stopwatch.ElapsedMilliseconds);
}
Debug.Log($"HotReload: Starting synchronous compilation of {filename}");
// Read source code
var sourceCode = File.ReadAllText(hotReloadPath);
if (string.IsNullOrWhiteSpace(sourceCode))
{
return HotReloadCompileResult.Failure(
"Empty File",
$"Hot reload file is empty: {hotReloadPath}",
stopwatch.ElapsedMilliseconds);
}
// Generate versioned assembly name
var baseFilename = Path.GetFileNameWithoutExtension(filename);
var nextVersion = GetNextVersion(baseFilename);
var assemblyName = $"{baseFilename}_{nextVersion:D3}";
// Ensure temp directory exists
Directory.CreateDirectory(HotReloadTempDir);
// Compile using shared RoslynCompilationService
var compilationResult = CompileHotReloadAssembly(sourceCode, assemblyName);
if (!compilationResult.Success)
{
return HotReloadCompileResult.Failure(
"Compilation Failed",
"Hot reload file compilation failed",
stopwatch.ElapsedMilliseconds,
compilationResult.Diagnostics.Select(d => d.Message).ToList());
}
// Register hot reload methods from compiled assembly
var registeredMethods = RegisterHotReloadMethods(compilationResult.Assembly, assemblyName, out var skippedOverrides);
// Save assembly to disk if assemblyDir is specified
string actualAssemblyPath = null;
if (!string.IsNullOrWhiteSpace(assemblyDir))
{
Directory.CreateDirectory(assemblyDir);
actualAssemblyPath = Path.Combine(assemblyDir, $"{assemblyName}.dll");
File.WriteAllBytes(actualAssemblyPath, compilationResult.AssemblyBytes);
Debug.Log($"HotReload: Assembly saved to disk: {actualAssemblyPath}");
}
else
{
actualAssemblyPath = Path.Combine(HotReloadTempDir, $"{assemblyName}.dll"); // For compatibility (in-memory)
}
stopwatch.Stop();
Debug.Log($"HotReload: Successfully compiled {filename} -> {assemblyName}.dll with {registeredMethods.Count} methods in {stopwatch.ElapsedMilliseconds}ms");
var compileResult = HotReloadCompileResult.Success(
assemblyName,
actualAssemblyPath,
registeredMethods,
stopwatch.ElapsedMilliseconds);
compileResult.Diagnostics = skippedOverrides;
return compileResult;
}
catch (Exception ex)
{
stopwatch.Stop();
Debug.LogError($"HotReload: Synchronous compilation failed for {filename}: {ex.Message}");
return HotReloadCompileResult.Failure(
"Exception",
ex.ToString(),
stopwatch.ElapsedMilliseconds);
}
}
/// <summary>
/// Internal async compilation implementation for background threads.
/// </summary>
/// <param name="filename">Hot reload file to compile</param>
/// <param name="assemblyDir">Optional directory to save compiled assembly to disk. If null, assembly stays in memory only.</param>
private static async Task<HotReloadCompileResult> CompileAndApplyInternalAsync(string filename, string assemblyDir = null)
{
var stopwatch = System.Diagnostics.Stopwatch.StartNew();
try
{
// Resolve the override file path (absolute, or relative to the project root).
var hotReloadPath = GetHotReloadPath(filename);
if (!File.Exists(hotReloadPath))
{
return HotReloadCompileResult.Failure(
"File Not Found",
$"Hot reload file not found: {hotReloadPath}",
stopwatch.ElapsedMilliseconds);
}
Debug.Log($"HotReload: Starting async compilation of {filename}");
// Read source code
var sourceCode = File.ReadAllText(hotReloadPath);
if (string.IsNullOrWhiteSpace(sourceCode))
{
return HotReloadCompileResult.Failure(
"Empty File",
$"Hot reload file is empty: {hotReloadPath}",
stopwatch.ElapsedMilliseconds);
}
// Generate versioned assembly name
var baseFilename = Path.GetFileNameWithoutExtension(filename);
var nextVersion = GetNextVersion(baseFilename);
var assemblyName = $"{baseFilename}_{nextVersion:D3}";
// Ensure temp directory exists
Directory.CreateDirectory(HotReloadTempDir);
// Compile using shared RoslynCompilationService async
var compilationResult = await CompileHotReloadAssemblyAsync(sourceCode, assemblyName);
if (!compilationResult.Success)
{
return HotReloadCompileResult.Failure(
"Compilation Failed",
"Hot reload file compilation failed",
stopwatch.ElapsedMilliseconds,
compilationResult.Diagnostics.Select(d => d.Message).ToList());
}
// Register hot reload methods from compiled assembly
var registeredMethods = RegisterHotReloadMethods(compilationResult.Assembly, assemblyName, out var skippedOverrides);
// Save assembly to disk if assemblyDir is specified
string actualAssemblyPath = null;
if (!string.IsNullOrWhiteSpace(assemblyDir))
{
Directory.CreateDirectory(assemblyDir);
actualAssemblyPath = Path.Combine(assemblyDir, $"{assemblyName}.dll");
File.WriteAllBytes(actualAssemblyPath, compilationResult.AssemblyBytes);
Debug.Log($"HotReload: Assembly saved to disk: {actualAssemblyPath}");
}
else
{
actualAssemblyPath = Path.Combine(HotReloadTempDir, $"{assemblyName}.dll"); // For compatibility (in-memory)
}
stopwatch.Stop();
Debug.Log($"HotReload: Successfully compiled {filename} -> {assemblyName}.dll with {registeredMethods.Count} methods in {stopwatch.ElapsedMilliseconds}ms");
var compileResult = HotReloadCompileResult.Success(
assemblyName,
actualAssemblyPath,
registeredMethods,
stopwatch.ElapsedMilliseconds);
compileResult.Diagnostics = skippedOverrides;
return compileResult;
}
catch (Exception ex)
{
stopwatch.Stop();
Debug.LogError($"HotReload: Async compilation failed for {filename}: {ex.Message}");
return HotReloadCompileResult.Failure(
"Exception",
ex.ToString(),
stopwatch.ElapsedMilliseconds);
}
}
/// <summary>
/// Compile hot reload source code directly (for in-place editing workflow).
/// </summary>
/// <param name="sourceCode">Hot reload source code to compile</param>
/// <param name="baseFileName">Base filename for versioned assembly naming</param>
/// <param name="assemblyDir">Optional directory to save compiled assembly to disk</param>
public static Task<HotReloadCompilationResult> CompileSourceCodeAsync(string sourceCode, string baseFileName, string assemblyDir = null, bool emitPdb = false, string documentPath = null)
{
// Runs synchronously on the calling (main) thread; returns a completed Task.
return Task.FromResult(CompileSourceCodeOnMainThread(sourceCode, baseFileName, assemblyDir, emitPdb, documentPath));
}
/// <summary>
/// Compile source code on main thread synchronously to avoid deadlocks.
/// </summary>
/// <param name="emitPdb">Emit a portable PDB and load symbols so breakpoints can bind.</param>
/// <param name="documentPath">Source document path recorded in the PDB (the original .cs file).</param>
public static HotReloadCompilationResult CompileSourceCodeOnMainThread(string sourceCode, string baseFileName, string assemblyDir = null, bool emitPdb = false, string documentPath = null)
{
var stopwatch = System.Diagnostics.Stopwatch.StartNew();
try
{
Debug.Log($"HotReload: Starting synchronous source code compilation for {baseFileName}");
if (string.IsNullOrWhiteSpace(sourceCode))
{
return HotReloadCompilationResult.Failure(
"Empty Source Code",
"Source code cannot be empty",
stopwatch.ElapsedMilliseconds);
}
// Generate versioned assembly name
var nextVersion = GetNextVersion(baseFileName);
var assemblyName = $"{baseFileName}_{nextVersion:D3}";
// Ensure temp directory exists
Directory.CreateDirectory(HotReloadTempDir);
// Compile using shared RoslynCompilationService
var compilationResult = CompileHotReloadAssembly(sourceCode, assemblyName, emitPdb, documentPath);
if (!compilationResult.Success)
{
return HotReloadCompilationResult.Failure(
"Compilation Failed",
"Hot reload source code compilation failed",
stopwatch.ElapsedMilliseconds,
compilationResult.Diagnostics.Select(d => d.Message).ToList());
}
// Register hot reload methods from compiled assembly
var registeredMethods = RegisterHotReloadMethods(compilationResult.Assembly, assemblyName, out var skippedOverrides);
// Save assembly to disk if assemblyDir is specified
string actualAssemblyPath = null;
if (!string.IsNullOrWhiteSpace(assemblyDir))
{
Directory.CreateDirectory(assemblyDir);
actualAssemblyPath = Path.Combine(assemblyDir, $"{assemblyName}.dll");
File.WriteAllBytes(actualAssemblyPath, compilationResult.AssemblyBytes);
Debug.Log($"HotReload: Assembly saved to disk: {actualAssemblyPath}");
// Symbols are loaded in-memory; also write the .pdb next to the .dll for convenience.
if (compilationResult.PdbBytes != null)
{
var pdbPath = Path.Combine(assemblyDir, $"{assemblyName}.pdb");
File.WriteAllBytes(pdbPath, compilationResult.PdbBytes);
Debug.Log($"HotReload: Symbols saved to disk: {pdbPath}");
}
}
else
{
actualAssemblyPath = Path.Combine(HotReloadTempDir, $"{assemblyName}.dll"); // For compatibility (in-memory)
}
stopwatch.Stop();
Debug.Log($"HotReload: Successfully compiled source code -> {assemblyName}.dll with {registeredMethods.Count} methods in {stopwatch.ElapsedMilliseconds}ms");
var sourceCompileResult = HotReloadCompilationResult.Success(
assemblyName,
actualAssemblyPath,
registeredMethods,
stopwatch.ElapsedMilliseconds);
sourceCompileResult.Diagnostics = skippedOverrides;
return sourceCompileResult;
}
catch (Exception ex)
{
stopwatch.Stop();
Debug.LogError($"HotReload: Synchronous source code compilation failed for {baseFileName}: {ex.Message}");
return HotReloadCompilationResult.Failure(
"Exception",
ex.ToString(),
stopwatch.ElapsedMilliseconds);
}
}
/// <summary>
/// Internal async source code compilation implementation for background threads.
/// </summary>
private static async Task<HotReloadCompilationResult> CompileSourceCodeInternalAsync(string sourceCode, string baseFileName, string assemblyDir = null)
{
var stopwatch = System.Diagnostics.Stopwatch.StartNew();
try
{
Debug.Log($"HotReload: Starting async source code compilation for {baseFileName}");
if (string.IsNullOrWhiteSpace(sourceCode))
{
return HotReloadCompilationResult.Failure(
"Empty Source Code",
"Source code cannot be empty",
stopwatch.ElapsedMilliseconds);
}
// Generate versioned assembly name
var nextVersion = GetNextVersion(baseFileName);
var assemblyName = $"{baseFileName}_{nextVersion:D3}";
// Ensure temp directory exists
Directory.CreateDirectory(HotReloadTempDir);
// Compile using shared RoslynCompilationService async
var compilationResult = await CompileHotReloadAssemblyAsync(sourceCode, assemblyName);
if (!compilationResult.Success)
{
return HotReloadCompilationResult.Failure(
"Compilation Failed",
"Hot reload source code compilation failed",
stopwatch.ElapsedMilliseconds,
compilationResult.Diagnostics.Select(d => d.Message).ToList());
}
// Register hot reload methods from compiled assembly
var registeredMethods = RegisterHotReloadMethods(compilationResult.Assembly, assemblyName, out var skippedOverrides);
// Save assembly to disk if assemblyDir is specified
string actualAssemblyPath = null;
if (!string.IsNullOrWhiteSpace(assemblyDir))
{
Directory.CreateDirectory(assemblyDir);
actualAssemblyPath = Path.Combine(assemblyDir, $"{assemblyName}.dll");
File.WriteAllBytes(actualAssemblyPath, compilationResult.AssemblyBytes);
Debug.Log($"HotReload: Assembly saved to disk: {actualAssemblyPath}");
}
else
{
actualAssemblyPath = Path.Combine(HotReloadTempDir, $"{assemblyName}.dll"); // For compatibility (in-memory)
}
stopwatch.Stop();
Debug.Log($"HotReload: Successfully compiled source code -> {assemblyName}.dll with {registeredMethods.Count} methods in {stopwatch.ElapsedMilliseconds}ms");
var sourceCompileResult = HotReloadCompilationResult.Success(
assemblyName,
actualAssemblyPath,
registeredMethods,
stopwatch.ElapsedMilliseconds);
sourceCompileResult.Diagnostics = skippedOverrides;
return sourceCompileResult;
}
catch (Exception ex)
{
stopwatch.Stop();
Debug.LogError($"HotReload: Async source code compilation failed for {baseFileName}: {ex.Message}");
return HotReloadCompilationResult.Failure(
"Exception",
ex.ToString(),
stopwatch.ElapsedMilliseconds);
}
}
/// <summary>
/// Clean up old hot reload DLL versions, keeping only the latest for each base filename.
/// </summary>
public static HotReloadCleanupResult CleanupHotReloadDlls(string assemblyDir = null)
{
var stopwatch = System.Diagnostics.Stopwatch.StartNew();
var deletedFiles = new List<string>();
try
{
// Use specified assemblyDir or default to HotReloadTempDir
var targetDir = !string.IsNullOrWhiteSpace(assemblyDir) ? assemblyDir : HotReloadTempDir;
if (!Directory.Exists(targetDir))
{
return new HotReloadCleanupResult
{
Success = true,
DeletedFiles = deletedFiles,
Message = $"No hot reload directory found: {targetDir}",
ExecutionTimeMs = stopwatch.ElapsedMilliseconds
};
}
var dllFiles = Directory.GetFiles(targetDir, "*.dll");
var groupedFiles = dllFiles
.Select(f => new
{
FilePath = f,
FileName = Path.GetFileNameWithoutExtension(f),
BaseFilename = ExtractBaseFilename(Path.GetFileNameWithoutExtension(f)),
Version = ExtractVersion(Path.GetFileNameWithoutExtension(f))
})
.Where(f => f.Version > 0) // Only versioned hot reload DLLs
.GroupBy(f => f.BaseFilename)
.ToList();
foreach (var group in groupedFiles)
{
var sortedFiles = group.OrderByDescending(f => f.Version).ToList();
// Keep the latest version, delete older ones
for (int i = 1; i < sortedFiles.Count; i++)
{
var fileToDelete = sortedFiles[i];
File.Delete(fileToDelete.FilePath);
deletedFiles.Add(fileToDelete.FileName + ".dll");
Debug.Log($"HotReload: Deleted old version {fileToDelete.FileName}.dll");
}
}
// Clear registry and reset version tracker
HotReloadRegistry.ClearAllOverrides();
_versionTracker.Clear();
stopwatch.Stop();
Debug.Log($"HotReload: Cleanup completed - deleted {deletedFiles.Count} files in {stopwatch.ElapsedMilliseconds}ms");
return new HotReloadCleanupResult
{
Success = true,
DeletedFiles = deletedFiles,
Message = $"Deleted {deletedFiles.Count} old DLL versions",
ExecutionTimeMs = stopwatch.ElapsedMilliseconds
};
}
catch (Exception ex)
{
stopwatch.Stop();
Debug.LogError($"HotReload: Cleanup failed: {ex.Message}");
return new HotReloadCleanupResult
{
Success = false,
DeletedFiles = deletedFiles,
Message = $"Cleanup failed: {ex.Message}",
ExecutionTimeMs = stopwatch.ElapsedMilliseconds
};
}
}
/// <summary>
/// Get the next version number for a base filename.
/// </summary>
private static int GetNextVersion(string baseFilename)
{
if (!_versionTracker.ContainsKey(baseFilename))
{
_versionTracker[baseFilename] = 0;
}
return ++_versionTracker[baseFilename];
}
/// <summary>
/// Wrap hot reload user code with proper using statements and namespace.
/// </summary>
/// <summary>
/// Compile hot reload source code using shared RoslynCompilationService.
/// Synchronous compilation for main thread use.
/// </summary>
private static CompilationResult CompileHotReloadAssembly(string sourceCode, string assemblyName, bool emitPdb = false, string documentPath = null)
{
var request = new CompilationRequest
{
SourceCode = sourceCode,
AssemblyName = assemblyName,
// Ensure Unity.Pipeline assemblies are included (contains HotReloadOverrideMethodAttribute)
// Also include test assemblies for testing scenarios
AdditionalAssemblyPrefixes = new[] { "Unity.Pipeline", "Unity.Pipeline.Tests" },
EmitDebugInformation = emitPdb,
DocumentPath = documentPath
};
return RoslynCompilationService.Compile(request);
}
/// <summary>
/// Compile hot reload source code using shared RoslynCompilationService.
/// Async compilation for background thread use.
/// </summary>
private static async Task<CompilationResult> CompileHotReloadAssemblyAsync(string sourceCode, string assemblyName)
{
var request = new CompilationRequest
{
SourceCode = sourceCode,
AssemblyName = assemblyName,
// Ensure Unity.Pipeline assemblies are included (contains HotReloadOverrideMethodAttribute)
// Also include test assemblies for testing scenarios
AdditionalAssemblyPrefixes = new[] { "Unity.Pipeline", "Unity.Pipeline.Tests" }
};
return await RoslynCompilationService.CompileAsync(request);
}
/// <summary>
/// Register hot reload methods from compiled assembly with the registry.
/// Also registers any [HotReloadWithOverrides] target methods found in the assembly.
/// Only overrides that actually bind are returned; overrides that were skipped (e.g. the
/// target is not currently [HotReloadWithOverrides], or a signature mismatch) are reported via
/// <paramref name="skipped"/> with a user-facing reason.
/// </summary>
private static List<string> RegisterHotReloadMethods(Assembly assembly, string assemblyId, out List<string> skipped)
{
var registeredMethods = new List<string>();
skipped = new List<string>();
try
{
Debug.Log($"HotReload: Registering methods from assembly {assemblyId} with {assembly.GetTypes().Length} types");
// Register assembly types for discovery
foreach (var type in assembly.GetTypes())
{
Debug.Log($"HotReload: Processing type {type.Name} in {type.Namespace}");
HotReloadRegistry.RegisterHotReloadType(type, assemblyId);
// First, scan for [HotReloadWithOverrides] methods to register as targets
var allMethods = type.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static);
foreach (var method in allMethods)
{
var reloadableAttr = method.GetCustomAttribute<HotReloadWithOverridesAttribute>();
if (reloadableAttr != null)
{
Debug.Log($"HotReload: Found reloadable method {method.Name} with ID {reloadableAttr.Id}");
HotReloadRegistry.RegisterReloadableMethod(method, reloadableAttr);
}
}
// Then, find methods with [HotReloadOverrideMethod] attribute for overrides
var staticMethods = type.GetMethods(BindingFlags.Public | BindingFlags.Static);
Debug.Log($"HotReload: Found {staticMethods.Length} static methods in {type.Name}");
foreach (var method in staticMethods)
{
var customAttributes = method.GetCustomAttributes(true);
Debug.Log($"HotReload: Method {method.Name} has {customAttributes.Length} custom attributes: {string.Join(", ", customAttributes.Select(a => a.GetType().Name))}");
// Try multiple ways to find the attribute
var hotReloadAttr = method.GetCustomAttribute<HotReloadOverrideMethodAttribute>();
if (hotReloadAttr == null)
{
// Try by name in case of type loading issues
var attrByName = customAttributes.FirstOrDefault(a => a.GetType().Name == "HotReloadOverrideMethodAttribute");
if (attrByName != null)
{
Debug.Log($"HotReload: Found HotReloadOverrideMethodAttribute by name on {method.Name}");
// Cast to the attribute type
hotReloadAttr = attrByName as HotReloadOverrideMethodAttribute;
}
}
if (hotReloadAttr != null)
{
Debug.Log($"HotReload: Registering method override {method.Name} -> {hotReloadAttr.TargetMethodId}");
if (HotReloadRegistry.RegisterMethodOverride(method, hotReloadAttr, type, out var skipReason))
{
registeredMethods.Add(hotReloadAttr.TargetMethodId);
}
else
{
skipped.Add($"{method.Name} -> {hotReloadAttr.TargetMethodId}: {skipReason}");
}
}
}
}
Debug.Log($"HotReload: Registered {registeredMethods.Count} override methods: {string.Join(", ", registeredMethods)}");
}
catch (Exception ex)
{
Debug.LogError($"HotReload: Error registering methods from assembly {assemblyId}: {ex.Message}");
Debug.LogError($"HotReload: Stack trace: {ex.StackTrace}");
}
return registeredMethods;
}
/// <summary>
/// Extract base filename from versioned filename (e.g., "PlayerMovement_001" -> "PlayerMovement").
/// </summary>
private static string ExtractBaseFilename(string versionedFilename)
{
var lastUnderscoreIndex = versionedFilename.LastIndexOf('_');
if (lastUnderscoreIndex > 0)
{
var potentialVersion = versionedFilename.Substring(lastUnderscoreIndex + 1);
if (int.TryParse(potentialVersion, out _))
{
return versionedFilename.Substring(0, lastUnderscoreIndex);
}
}
return versionedFilename;
}
/// <summary>
/// Extract version number from versioned filename (e.g., "PlayerMovement_001" -> 1).
/// </summary>
private static int ExtractVersion(string versionedFilename)
{
var lastUnderscoreIndex = versionedFilename.LastIndexOf('_');
if (lastUnderscoreIndex > 0)
{
var potentialVersion = versionedFilename.Substring(lastUnderscoreIndex + 1);
if (int.TryParse(potentialVersion, out var version))
{
return version;
}
}
return 0;
}
#else
// Hot reload requires Roslyn compilation, which is only available in the Editor and in
// Desktop development builds. In all other builds the methods below are compiled instead,
// matching the public surface used by callers (HotReloadCommands, InPlaceReloadProcessor)
// so the project still builds, and returning a clear "not supported" failure at runtime.
const string NotSupportedMessage =
"Hot reload compilation is only supported on Desktop development builds (Windows/Mac/Linux).";
/// <summary>
/// Hot reload compilation not supported on this build.
/// </summary>
public static Task<HotReloadCompileResult> CompileAndApplyAsync(string filename, string assemblyDir = null)
{
return Task.FromResult(HotReloadCompileResult.Failure("Platform Not Supported", NotSupportedMessage));
}
/// <summary>
/// Hot reload source compilation (in-place editing) not supported on this build.
/// </summary>
public static HotReloadCompilationResult CompileSourceCodeOnMainThread(string sourceCode, string baseFileName, string assemblyDir = null, bool emitPdb = false, string documentPath = null)
{
return HotReloadCompilationResult.Failure("Platform Not Supported", NotSupportedMessage);
}
/// <summary>
/// Hot reload source compilation (in-place editing) not supported on this build.
/// </summary>
public static Task<HotReloadCompilationResult> CompileSourceCodeAsync(string sourceCode, string baseFileName, string assemblyDir = null, bool emitPdb = false, string documentPath = null)
{
return Task.FromResult(HotReloadCompilationResult.Failure("Platform Not Supported", NotSupportedMessage));
}
/// <summary>
/// Hot reload cleanup not supported on this build.
/// </summary>
public static HotReloadCleanupResult CleanupHotReloadDlls(string assemblyDir = null)
{
return new HotReloadCleanupResult
{
Success = false,
Message = NotSupportedMessage,
ExecutionTimeMs = 0
};
}
#endif
}
/// <summary>
/// Result from hot reload compilation operation.
/// </summary>
public class HotReloadCompileResult
{
public bool IsSuccess { get; set; }
public string AssemblyName { get; set; }
public string OutputPath { get; set; }
public List<string> RegisteredMethods { get; set; } = new List<string>();
public long ExecutionTimeMs { get; set; }
public string Error { get; set; }
public string ErrorDetails { get; set; }
public List<string> Diagnostics { get; set; } = new List<string>();
public static HotReloadCompileResult Success(string assemblyName, string outputPath, List<string> registeredMethods, long executionTimeMs)
{
return new HotReloadCompileResult
{
IsSuccess = true,
AssemblyName = assemblyName,
OutputPath = outputPath,
RegisteredMethods = registeredMethods,
ExecutionTimeMs = executionTimeMs
};
}
public static HotReloadCompileResult Failure(string error, string errorDetails, long executionTimeMs = 0, List<string> diagnostics = null)
{
return new HotReloadCompileResult
{
IsSuccess = false,
Error = error,
ErrorDetails = errorDetails,
ExecutionTimeMs = executionTimeMs,
Diagnostics = diagnostics ?? new List<string>()
};
}
}
/// <summary>
/// Result from hot reload cleanup operation.
/// </summary>
public class HotReloadCleanupResult
{
public bool Success { get; set; }
public List<string> DeletedFiles { get; set; } = new List<string>();
public string Message { get; set; }
public long ExecutionTimeMs { get; set; }
}
/// <summary>
/// Result from hot reload source code compilation operation (for in-place editing).
/// </summary>
public class HotReloadCompilationResult
{
public bool IsSuccess { get; set; }
public string AssemblyName { get; set; }
public string OutputPath { get; set; }
public List<string> RegisteredMethods { get; set; } = new List<string>();
public long ExecutionTimeMs { get; set; }
public string Error { get; set; }
public string ErrorDetails { get; set; }
public List<string> Diagnostics { get; set; } = new List<string>();
public static HotReloadCompilationResult Success(string assemblyName, string outputPath, List<string> registeredMethods, long executionTimeMs)
{
return new HotReloadCompilationResult
{
IsSuccess = true,
AssemblyName = assemblyName,
OutputPath = outputPath,
RegisteredMethods = registeredMethods,
ExecutionTimeMs = executionTimeMs
};
}
public static HotReloadCompilationResult Failure(string error, string errorDetails, long executionTimeMs = 0, List<string> diagnostics = null)
{
return new HotReloadCompilationResult
{
IsSuccess = false,
Error = error,
ErrorDetails = errorDetails,
ExecutionTimeMs = executionTimeMs,
Diagnostics = diagnostics ?? new List<string>()
};
}
}
}
@@ -0,0 +1,11 @@
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@@ -0,0 +1,356 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.Emit;
using Microsoft.CodeAnalysis.Text;
using Unity.Pipeline.Models;
using UnityEngine;
namespace Unity.Pipeline.Compilation
{
/// <summary>
/// Shared Roslyn compilation service for both code evaluation and hot reload systems.
/// Eliminates code duplication by providing common compilation infrastructure.
/// Thread-safe and can be called from any thread.
/// </summary>
public static class RoslynCompilationService
{
#if UNITY_EDITOR || (UNITY_STANDALONE && DEBUG)
/// <summary>
/// Compile source code to assembly with customizable options.
/// Thread-safe compilation that can run on any thread.
/// </summary>
public static CompilationResult Compile(CompilationRequest request)
{
try
{
// Parse syntax tree. When emitting debug info, the tree needs a document path and
// UTF-8 encoding so the portable PDB can reference a source document.
var syntaxTree = request.EmitDebugInformation
? CSharpSyntaxTree.ParseText(
SourceText.From(request.SourceCode, Encoding.UTF8),
path: request.DocumentPath ?? request.AssemblyName + ".cs")
: CSharpSyntaxTree.ParseText(request.SourceCode);
// Get metadata references with optional additional prefixes
var references = GetMetadataReferences(request.AdditionalAssemblyPrefixes);
// Create compilation. Disable optimizations when emitting debug info so the JIT
// keeps full sequence points (otherwise breakpoints can't bind).
var options = new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary);
if (request.EmitDebugInformation)
options = options.WithOptimizationLevel(OptimizationLevel.Debug);
var compilation = CSharpCompilation.Create(
request.AssemblyName,
new[] { syntaxTree },
references,
options);
// Get diagnostics
var diagnostics = compilation.GetDiagnostics();
var diagnosticInfos = ConvertDiagnostics(diagnostics, request.LineNumberOffset);
// Check for compilation errors
var errors = diagnostics.Where(d => d.Severity == DiagnosticSeverity.Error).ToList();
if (errors.Any())
{
return new CompilationResult
{
Success = false,
Diagnostics = diagnosticInfos
};
}
// Compile to memory
using (var peStream = new MemoryStream())
{
byte[] pdbBytes = null;
EmitResult emitResult;
if (request.EmitDebugInformation)
{
using (var pdbStream = new MemoryStream())
{
emitResult = compilation.Emit(
peStream,
pdbStream,
options: new EmitOptions(debugInformationFormat: DebugInformationFormat.PortablePdb));
if (emitResult.Success)
pdbBytes = pdbStream.ToArray();
}
}
else
{
emitResult = compilation.Emit(peStream);
}
if (!emitResult.Success)
{
var emitDiagnostics = ConvertDiagnostics(emitResult.Diagnostics, request.LineNumberOffset);
return new CompilationResult
{
Success = false,
Diagnostics = diagnosticInfos.Concat(emitDiagnostics).ToList()
};
}
// Load assembly from memory. When symbols are present, load them alongside the
// assembly so an attached debugger can bind breakpoints into the emitted code.
var assemblyBytes = peStream.ToArray();
var assembly = pdbBytes != null
? PipelineUtils.LoadFromBytes(assemblyBytes, pdbBytes)
: PipelineUtils.LoadFromBytes(assemblyBytes);
return new CompilationResult
{
Success = true,
Assembly = assembly,
AssemblyBytes = assemblyBytes,
PdbBytes = pdbBytes,
Diagnostics = diagnosticInfos
};
}
}
catch (Exception ex)
{
return new CompilationResult
{
Success = false,
Diagnostics = new List<DiagnosticInfo>
{
new DiagnosticInfo
{
Severity = "error",
Message = $"Compilation exception: {ex.Message}",
Line = 0,
Column = 0,
Id = "ROSLYN001"
}
}
};
}
}
/// <summary>
/// Async wrapper for compilation that runs on background thread.
/// Use when you need to avoid blocking the calling thread.
/// </summary>
public static Task<CompilationResult> CompileAsync(CompilationRequest request)
{
return Task.Run(() => Compile(request));
}
/// <summary>
/// Get metadata references for compilation with optional additional assembly prefixes.
/// Handles both Editor and Runtime scenarios with appropriate filtering.
/// </summary>
public static List<MetadataReference> GetMetadataReferences(string[] additionalPrefixes = null)
{
var references = new List<MetadataReference>();
var assemblies = PipelineUtils.GetLoadedAssemblies()
.Where(a => !a.IsDynamic && !string.IsNullOrEmpty(PipelineUtils.GetLoadedAssemblyPath(a)));
if (Application.isEditor)
{
// Editor: Include all loaded assemblies for maximum compatibility
foreach (var assembly in assemblies)
{
try
{
references.Add(MetadataReference.CreateFromFile(PipelineUtils.GetLoadedAssemblyPath(assembly)));
}
catch
{
// Skip problematic assemblies
}
}
}
else
{
// Runtime: Use curated filtering for Unity + user assemblies
var allowedPrefixes = new List<string>
{
"UnityEngine",
"Assembly-CSharp",
"netstandard",
"mscorlib",
"System.",
"Unity.Pipeline"
};
// Add any additional prefixes (e.g., for hot reload: "Microsoft.CodeAnalysis")
if (additionalPrefixes != null)
{
allowedPrefixes.AddRange(additionalPrefixes);
}
foreach (var assembly in assemblies)
{
try
{
var assemblyName = assembly.GetName().Name;
if (allowedPrefixes.Any(prefix => assemblyName.StartsWith(prefix)))
{
references.Add(MetadataReference.CreateFromFile(PipelineUtils.GetLoadedAssemblyPath(assembly)));
}
}
catch
{
// Skip problematic assemblies
}
}
}
return references;
}
/// <summary>
/// Convert Roslyn diagnostics to DiagnosticInfo list with optional line number adjustment.
/// Handles line number offset for wrapped code scenarios.
/// </summary>
private static List<DiagnosticInfo> ConvertDiagnostics(IEnumerable<Diagnostic> diagnostics, int lineOffset = 0)
{
var result = new List<DiagnosticInfo>();
foreach (var diagnostic in diagnostics.Where(d => d.Severity >= DiagnosticSeverity.Warning))
{
var location = diagnostic.Location.GetLineSpan();
var line = Math.Max(0, location.StartLinePosition.Line - lineOffset);
var column = location.StartLinePosition.Character;
result.Add(new DiagnosticInfo
{
Severity = diagnostic.Severity.ToString().ToLower(),
Message = diagnostic.GetMessage(),
Line = line,
Column = column,
Id = diagnostic.Id
});
}
return result;
}
#else
/// <summary>
/// Runtime compilation not supported on this platform.
/// Desktop development builds only (Windows/Mac/Linux).
/// </summary>
public static CompilationResult Compile(CompilationRequest request)
{
return new CompilationResult
{
Success = false,
Diagnostics = new List<DiagnosticInfo>
{
new DiagnosticInfo
{
Severity = "error",
Message = "Runtime code compilation only supported on Desktop development builds",
Line = 0,
Column = 0,
Id = "PLATFORM001"
}
}
};
}
/// <summary>
/// Runtime compilation not supported on this platform.
/// </summary>
public static Task<CompilationResult> CompileAsync(CompilationRequest request)
{
return Task.FromResult(Compile(request));
}
/// <summary>
/// Runtime compilation not supported on this platform.
/// </summary>
public static List<MetadataReference> GetMetadataReferences(string[] additionalPrefixes = null)
{
return new List<MetadataReference>();
}
#endif
}
/// <summary>
/// Request for Roslyn compilation with customizable options.
/// </summary>
public class CompilationRequest
{
/// <summary>
/// Source code to compile.
/// </summary>
public string SourceCode { get; set; }
/// <summary>
/// Name for the generated assembly (should be unique).
/// </summary>
public string AssemblyName { get; set; }
/// <summary>
/// Additional assembly prefixes to include in metadata references.
/// Useful for hot reload scenarios that need "Microsoft.CodeAnalysis" etc.
/// </summary>
public string[] AdditionalAssemblyPrefixes { get; set; }
/// <summary>
/// Line number offset to subtract from diagnostic line numbers.
/// Used when source code has wrapper code that should be hidden from diagnostics.
/// </summary>
public int LineNumberOffset { get; set; }
/// <summary>
/// When true, emit a portable PDB and load the assembly with its symbols so an attached
/// managed debugger can bind breakpoints. Compiles unoptimized. Default false (no symbols).
/// </summary>
public bool EmitDebugInformation { get; set; }
/// <summary>
/// Document path recorded in the syntax tree when <see cref="EmitDebugInformation"/> is set.
/// Source that is not covered by explicit <c>#line</c> directives maps to this path.
/// </summary>
public string DocumentPath { get; set; }
}
/// <summary>
/// Result from Roslyn compilation.
/// </summary>
public class CompilationResult
{
/// <summary>
/// Whether compilation was successful.
/// </summary>
public bool Success { get; set; }
/// <summary>
/// Compiled assembly (only available if Success = true).
/// </summary>
public Assembly Assembly { get; set; }
/// <summary>
/// Raw assembly bytes (for potential disk saving or caching).
/// </summary>
public byte[] AssemblyBytes { get; set; }
/// <summary>
/// Portable PDB bytes when <see cref="CompilationRequest.EmitDebugInformation"/> was set;
/// null otherwise.
/// </summary>
public byte[] PdbBytes { get; set; }
/// <summary>
/// Compilation diagnostics (errors, warnings, info).
/// </summary>
public List<DiagnosticInfo> Diagnostics { get; set; } = new List<DiagnosticInfo>();
}
}
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