Files
LuaCsForBarotraumaEP/Barotrauma/BarotraumaShared/SharedSource/LuaCs/Cs/CsScriptRunner.cs

122 lines
5.2 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using Microsoft.CodeAnalysis.Scripting;
using System.Reflection;
using Microsoft.CodeAnalysis.CSharp;
using System.Linq;
using Microsoft.CodeAnalysis;
using System.Runtime.Loader;
using System.Reflection.PortableExecutable;
using System.Reflection.Metadata;
using MoonSharp.Interpreter;
namespace Barotrauma
{
class CsScriptRunner : CsScriptBase
{
public LuaCsSetup setup;
private List<MetadataReference> defaultReferences;
private CSharpCompilationOptions compileOptions;
private static readonly string[] usings = {
"System",
"Barotrauma",
"System.Collections.Generic",
"System.Linq"
};
public CsScriptRunner(LuaCsSetup setup)
{
this.setup = setup;
defaultReferences = AppDomain.CurrentDomain.GetAssemblies()
.Where(a => !(a.IsDynamic || string.IsNullOrEmpty(a.Location) || a.Location.Contains("xunit")))
.Select(a => MetadataReference.CreateFromFile(a.Location) as MetadataReference)
.ToList();
compileOptions = new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary)
.WithMetadataImportOptions(MetadataImportOptions.All)
.WithOptimizationLevel(OptimizationLevel.Release)
.WithAllowUnsafe(false);
}
private static string ToOneTimeScript(string code)
{
var prefix = "";
foreach (var u in usings) prefix += $"using {u}; ";
prefix += "namespace NetOneTimeScript { public class NetOneTimeScriptRunner { public NetOneTimeScriptRunner() { } public object Run() {\n";
var postfix = "\nreturn null; } } }";
return prefix + code + postfix;
}
public object Run(string code)
{
object scriptResilt = null;
try
{
code = ToOneTimeScript(code);
var syntaxTree = SyntaxFactory.ParseSyntaxTree(code, ParseOptions);
var compilation = CSharpCompilation.Create(CsOneTimeScriptAssembly, new[] { AssemblyInfoSyntaxTree(CsOneTimeScriptAssembly), syntaxTree }, defaultReferences, compileOptions);
Assembly assembly = null;
using (var mem = new MemoryStream())
{
var result = compilation.Emit(mem);
if (!result.Success)
{
IEnumerable<Diagnostic> failures = result.Diagnostics.Where(d => d.IsWarningAsError || d.Severity == DiagnosticSeverity.Error);
string errStr = "Script compilation errors:";
var lineErr = new SortedDictionary<int, (string, string)>();
foreach (Diagnostic diagnostic in failures)
{
var line = syntaxTree.GetLineSpan(diagnostic.Location.SourceSpan).StartLinePosition.Line;
lineErr[line] = (diagnostic.Id, diagnostic.ToString());
}
var lines = code.Split('\n');
for (var i = 1; i < lines.Length - 1; i++)
{
errStr += $"\n{i} >> {lines[i]}";
if (lineErr.ContainsKey(i)) errStr += $" <=== {lineErr[i].Item1}";
}
errStr += "\n";
foreach ((var idx, (var id, var err)) in lineErr)
{
errStr += $"\n{idx}: {err}";
}
LuaCsLogger.LogError(errStr, LuaCsMessageOrigin.CSharpMod);
}
else
{
mem.Seek(0, SeekOrigin.Begin);
assembly = LoadFromStream(mem);
var runner = assembly.CreateInstance("NetOneTimeScript.NetOneTimeScriptRunner");
if (runner != null)
{
var method = runner.GetType().GetMethod("Run", BindingFlags.Public | BindingFlags.Instance);
if (method != null)
{
scriptResilt = method.Invoke(runner, null);
foreach (var type in assembly.GetTypes())
{
UserData.UnregisterType(type, true);
}
}
else { LuaCsLogger.LogError("Script Error - no run method detected", LuaCsMessageOrigin.CSharpMod); }
}
else { LuaCsLogger.LogError("Script Error - no runner class detected", LuaCsMessageOrigin.CSharpMod); }
}
}
Unload();
}
catch (Exception ex)
{
LuaCsLogger.LogError("Error running script:\n" + ex.Message + "\n" + ex.StackTrace, LuaCsMessageOrigin.CSharpMod);
}
return scriptResilt;
}
}
}