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Copy pathAssemblyTranslator.cs
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2209 lines (1770 loc) · 89.8 KB
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using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using ICSharpCode.Decompiler.Ast;
using ICSharpCode.Decompiler.ILAst;
using JSIL.Ast;
using JSIL.Internal;
using JSIL.Transforms;
using JSIL.Translator;
using Mono.Cecil;
using Mono.Cecil.Cil;
using ICSharpCode.Decompiler;
using JSIL.Compiler.Extensibility;
using GenericParameterAttributes = Mono.Cecil.GenericParameterAttributes;
using MethodInfo = JSIL.Internal.MethodInfo;
using TypeInfo = JSIL.Internal.TypeInfo;
namespace JSIL {
public delegate void AssemblyLoadedHandler (string assemblyName, string classification);
public delegate void ProgressHandler (ProgressReporter pr);
public delegate void DecompilingMethodHandler (string methodName, ProgressReporter pr);
public delegate void LoadErrorHandler (string name, Exception error);
public class AssemblyTranslator : IDisposable {
public struct Cachers {
public readonly TypeExpressionCacher Type;
public readonly SignatureCacher Signature;
public readonly BaseMethodCacher BaseMethod;
public Cachers (TypeExpressionCacher type, SignatureCacher signature, BaseMethodCacher baseMethod) {
if (type == null)
throw new ArgumentNullException("type");
else if (signature == null)
throw new ArgumentNullException("signature");
else if (baseMethod == null)
throw new ArgumentNullException("baseMethod");
Type = type;
Signature = signature;
BaseMethod = baseMethod;
}
}
struct MethodToAnalyze {
public readonly MethodDefinition MD;
public readonly MethodInfo MI;
public MethodToAnalyze (MethodDefinition md) {
MD = md;
MI = null;
}
public MethodToAnalyze (MethodInfo mi) {
MD = mi.Member;
MI = mi;
}
}
public const int LargeMethodThreshold = 20 * 1024;
public const int DefaultStreamCapacity = 4 * (1024 * 1024);
public readonly Configuration Configuration;
public readonly SymbolProvider SymbolProvider = new SymbolProvider();
public readonly AssemblyDataResolver AssemblyDataResolver;
public readonly FunctionCache FunctionCache;
public readonly AssemblyManifest Manifest;
public readonly System.Collections.ObjectModel.ReadOnlyCollection<IAnalyzer> Analyzers;
internal readonly IFunctionTransformer[] FunctionTransformers;
public readonly List<Exception> Failures = new List<Exception>();
public event AssemblyLoadedHandler AssemblyLoaded;
public event AssemblyLoadedHandler AssemblyNotLoaded;
public event AssemblyLoadedHandler ProxyAssemblyLoaded;
public event ProgressHandler RunningAnalyzers;
public event ProgressHandler Decompiling;
public event ProgressHandler RunningTransforms;
public event ProgressHandler Writing;
public event DecompilingMethodHandler DecompilingMethod;
public event LoadErrorHandler CouldNotLoadSymbols;
public event LoadErrorHandler CouldNotResolveAssembly;
public event LoadErrorHandler CouldNotDecompileMethod;
public event Action<string> Warning;
public event Action<string, string[]> IgnoredMethod;
public event Action<TypeIdentifier> ProxyNotMatched;
public event Action<QualifiedMemberIdentifier> ProxyMemberNotMatched;
public Func<bool, string, string> ChooseCustomAssemblyName;
public readonly TypeInfoProvider TypeInfoProvider;
public readonly IEmitterFactory EmitterFactory;
protected bool OwnsAssemblyDataResolver;
protected bool OwnsTypeInfoProvider;
public AssemblyTranslator (
Configuration configuration,
TypeInfoProvider typeInfoProvider = null,
AssemblyManifest manifest = null,
AssemblyDataResolver assemblyDataResolver = null,
AssemblyLoadedHandler onProxyAssemblyLoaded = null,
IEmitterFactory emitterFactory = null,
IEnumerable<IAnalyzer> analyzers = null
) {
ProxyAssemblyLoaded = onProxyAssemblyLoaded;
Warning = (s) =>
Console.Error.WriteLine("// {0}", s);
Manifest = manifest ?? new AssemblyManifest();
EmitterFactory = emitterFactory ?? new JavascriptEmitterFactory();
Configuration = EmitterFactory.FilterConfiguration(configuration);
bool useDefaultProxies = configuration.UseDefaultProxies.GetValueOrDefault(true);
OwnsAssemblyDataResolver = (assemblyDataResolver == null);
AssemblyDataResolver = assemblyDataResolver ?? new AssemblyDataResolver(configuration);
AssemblyDataResolver.AssemblyResolver.AddSearchDirectory(Path.GetDirectoryName(Util.GetPathOfAssembly(Assembly.GetExecutingAssembly())));
var analyzerList = new List<IAnalyzer>();
if (analyzers != null)
analyzerList.AddRange(analyzers);
analyzerList.AddRange(EmitterFactory.GetAnalyzers());
if (typeInfoProvider != null) {
TypeInfoProvider = typeInfoProvider;
OwnsTypeInfoProvider = false;
if (configuration.Assemblies.Proxies.Count > 0)
throw new InvalidOperationException("Cannot reuse an existing type provider if explicitly loading proxies");
} else {
TypeInfoProvider = new JSIL.TypeInfoProvider();
OwnsTypeInfoProvider = true;
if (useDefaultProxies) {
var defaultProxyAssembly =
GetDefaultProxyAssembly(configuration.FrameworkVersion.GetValueOrDefault(4.0));
if (defaultProxyAssembly == null)
throw new InvalidOperationException("No default proxy assembly was loaded.");
AddProxyAssembly(defaultProxyAssembly);
}
foreach (var fn in configuration.Assemblies.Proxies.Distinct())
AddProxyAssembly(fn);
}
FunctionCache = new FunctionCache(TypeInfoProvider);
Analyzers = analyzerList.AsReadOnly();
FunctionTransformers = analyzerList.SelectMany(a => a.FunctionTransformers).ToArray();
}
public static Assembly GetDefaultProxyAssembly (double frameworkVersion) {
var myAssemblyPath = Util.GetPathOfAssembly(Assembly.GetExecutingAssembly());
var proxyFolder = Path.GetDirectoryName(myAssemblyPath);
string proxyPath = null;
try {
if (frameworkVersion == 4.0) {
proxyPath = Path.Combine(proxyFolder, "JSIL.Proxies.4.0.dll");
} else {
throw new ArgumentOutOfRangeException(
"frameworkVersion",
String.Format("Framework version '{0}' not supported", frameworkVersion)
);
}
return Assembly.LoadFile(proxyPath);
} catch (FileNotFoundException fnf) {
throw new FileNotFoundException(
String.Format("Could not load the .NET proxies assembly from '{0}'.", proxyPath),
fnf
);
}
}
internal void WarningFormatFunction (string functionName, string format, params object[] args) {
Warning(String.Format("{0}: {1}", functionName, String.Format(format, args)));
}
internal void WarningFormat (string format, params object[] args) {
Warning(String.Format(format, args));
}
protected virtual ReaderParameters GetReaderParameters (bool useSymbols, string mainAssemblyPath = null) {
var readerParameters = new ReaderParameters {
ReadingMode = ReadingMode.Deferred,
ReadSymbols = useSymbols
};
if (mainAssemblyPath != null) {
AssemblyDataResolver.AssemblyResolver.AddSearchDirectory(Path.GetDirectoryName(mainAssemblyPath));
readerParameters.AssemblyResolver = AssemblyDataResolver.AssemblyResolver;
readerParameters.MetadataResolver = AssemblyDataResolver.CachingMetadataResolver;
}
if (useSymbols)
readerParameters.SymbolReaderProvider = SymbolProvider;
return readerParameters;
}
private void OnProxiesFoundHandler (AssemblyDefinition asm) {
if (ProxyAssemblyLoaded != null)
ProxyAssemblyLoaded(asm.Name.Name, "proxy");
}
public void AddProxyAssembly (string path) {
var assemblies = LoadAssembly(path, Configuration.UseSymbols.GetValueOrDefault(true), false);
TypeInfoProvider.AddProxyAssemblies(OnProxiesFoundHandler, assemblies);
}
public void AddProxyAssembly (Assembly assembly) {
var path = Util.GetPathOfAssembly(assembly);
AddProxyAssembly(path);
}
public AssemblyDefinition[] LoadAssembly (string path) {
return LoadAssembly(
path,
Configuration.UseSymbols.GetValueOrDefault(true),
Configuration.IncludeDependencies.GetValueOrDefault(true)
);
}
protected AssemblyDefinition AssemblyLoadErrorWrapper<T> (
Func<T, ReaderParameters, AssemblyDefinition> loader,
T assemblyName, ReaderParameters readerParameters,
bool useSymbols, string mainAssemblyPath
) {
AssemblyDefinition result = null;
try {
result = loader(assemblyName, readerParameters);
} catch (Exception ex) {
if (useSymbols) {
try {
result = loader(assemblyName, GetReaderParameters(false, mainAssemblyPath));
if (CouldNotLoadSymbols != null)
CouldNotLoadSymbols(assemblyName.ToString(), ex);
} catch (Exception ex2) {
if (CouldNotResolveAssembly != null)
CouldNotResolveAssembly(assemblyName.ToString(), ex2);
}
} else {
if (CouldNotResolveAssembly != null)
CouldNotResolveAssembly(assemblyName.ToString(), ex);
}
}
return result;
}
protected ParallelOptions GetParallelOptions () {
return new ParallelOptions {
MaxDegreeOfParallelism = Configuration.UseThreads.GetValueOrDefault(true)
? (Environment.ProcessorCount + 2)
: 1
};
}
protected bool IsIgnored (string assemblyName) {
foreach (var ia in Configuration.Assemblies.Ignored) {
if (Regex.IsMatch(assemblyName, ia, RegexOptions.IgnoreCase))
return true;
}
return false;
}
protected bool IsRedirected (string assemblyName) {
foreach (var ra in Configuration.Assemblies.Redirects.Keys) {
if (Regex.IsMatch(assemblyName, ra, RegexOptions.IgnoreCase))
return true;
}
return false;
}
public string ClassifyAssembly (AssemblyDefinition asm) {
if (IsIgnored(asm.FullName))
return "ignored";
else if (IsStubbed(asm))
return "stubbed";
else
return "translate";
}
protected AssemblyDefinition[] LoadAssembly (string path, bool useSymbols, bool includeDependencies) {
if (String.IsNullOrWhiteSpace(path))
throw new InvalidDataException("Assembly path was empty.");
var readerParameters = GetReaderParameters(useSymbols, path);
var assembly = AssemblyLoadErrorWrapper(
AssemblyDefinition.ReadAssembly,
path, readerParameters,
useSymbols, path
);
if (assembly == null)
throw new FileNotFoundException("Could not load the assembly '" + path + "'");
var result = new List<AssemblyDefinition> {
assembly
};
if (AssemblyLoaded != null)
AssemblyLoaded(path, ClassifyAssembly(assembly));
if (includeDependencies) {
var parallelOptions = GetParallelOptions();
var modulesToVisit = new List<ModuleDefinition>(assembly.Modules);
var assembliesToLoad = new List<AssemblyNameReference>();
var visitedModules = new HashSet<string>();
var assemblyNames = new HashSet<string>();
while ((modulesToVisit.Count > 0) || (assembliesToLoad.Count > 0)) {
foreach (var module in modulesToVisit) {
if (visitedModules.Contains(module.FullyQualifiedName))
continue;
visitedModules.Add(module.FullyQualifiedName);
foreach (var reference in module.AssemblyReferences) {
bool ignored = IsIgnored(reference.FullName);
if (ignored) {
if (AssemblyNotLoaded != null)
AssemblyNotLoaded(reference.FullName, "ignored");
continue;
}
if (assemblyNames.Contains(reference.FullName))
continue;
assemblyNames.Add(reference.FullName);
assembliesToLoad.Add(reference);
}
}
modulesToVisit.Clear();
Parallel.For(
0, assembliesToLoad.Count, parallelOptions, (i) => {
var anr = assembliesToLoad[i];
var refAssembly = AssemblyLoadErrorWrapper(
readerParameters.AssemblyResolver.Resolve,
anr, readerParameters,
useSymbols, path
);
if (refAssembly != null) {
if (AssemblyLoaded != null)
AssemblyLoaded(refAssembly.MainModule.FullyQualifiedName, ClassifyAssembly(refAssembly));
lock (result)
result.Add(refAssembly);
lock (modulesToVisit)
modulesToVisit.AddRange(refAssembly.Modules);
} else {
Warning(String.Format(
"Failed to load assembly '{0}'", anr.FullName
));
}
}
);
assembliesToLoad.Clear();
}
}
// HACK: If an assembly we loaded has indirect references to multiple versions of BCL assemblies,
// Cecil will resolve them all to the same version. As a result, we'll end up with multiple copies
// of the same assembly in result. We need to filter those out so we only return each assembly once.
return result.Distinct(new FullNameAssemblyComparer()).ToArray();
}
protected DecompilerContext MakeDecompilerContext (ModuleDefinition module) {
return new DecompilerContext(module) {
Settings = {
AsyncAwait = false,
YieldReturn = false,
AnonymousMethods = true,
QueryExpressions = false,
LockStatement = false,
FullyQualifyAmbiguousTypeNames = true,
ForEachStatement = false,
ExpressionTrees = false,
ObjectOrCollectionInitializers = false,
// FIXME
MakeCompoundAssignmentExpressions = true
}
};
}
protected virtual string FormatOutputFilename (AssemblyNameDefinition assemblyName) {
var result = assemblyName.ToString();
if (Configuration.FilenameEscapeRegex != null)
return Regex.Replace(result, Configuration.FilenameEscapeRegex, "_");
else
return result;
}
public TranslationResult Translate (
string assemblyPath, bool scanForProxies = true
) {
var originalLatencyMode = System.Runtime.GCSettings.LatencyMode;
try {
#if TARGETTING_FX_4_5
if (Configuration.TuneGarbageCollection.GetValueOrDefault(true))
System.Runtime.GCSettings.LatencyMode = System.Runtime.GCLatencyMode.SustainedLowLatency;
#endif
var sw = Stopwatch.StartNew();
if (Configuration.RunBugChecks.GetValueOrDefault(true))
BugChecks.RunBugChecks();
else
Console.Error.WriteLine("// WARNING: Bug checks have been suppressed. You may be running JSIL on a broken/unsupported .NET runtime.");
var result = TranslateInternal(assemblyPath, scanForProxies);
sw.Stop();
result.Elapsed = sw.Elapsed;
return result;
} finally {
System.Runtime.GCSettings.LatencyMode = originalLatencyMode;
}
}
private TranslationResult TranslateInternal (
string assemblyPath, bool scanForProxies = true
) {
var result = new TranslationResult(this.Configuration, assemblyPath, Manifest);
var assemblies = new [] {assemblyPath}.Union(this.Configuration.Assemblies.TranslateAdditional).Distinct()
.SelectMany(LoadAssembly).Distinct(new FullNameAssemblyComparer()).ToArray();
var parallelOptions = GetParallelOptions();
if (scanForProxies)
TypeInfoProvider.AddProxyAssemblies(OnProxiesFoundHandler, assemblies);
var pr = new ProgressReporter();
if (RunningAnalyzers != null)
RunningAnalyzers(pr);
foreach (var analyzer in Analyzers)
analyzer.Analyze(this, assemblies, TypeInfoProvider);
TriggerAutomaticGC();
pr.OnFinished();
pr = new ProgressReporter();
if (Decompiling != null)
Decompiling(pr);
var methodsToAnalyze = new ConcurrentBag<MethodToAnalyze>();
for (int i = 0; i < assemblies.Length; i++) {
pr.OnProgressChanged(i, assemblies.Length * 2);
GetMethodsToAnalyze(assemblies[i], methodsToAnalyze);
}
AnalyzeFunctions(
parallelOptions, assemblies,
methodsToAnalyze, pr
);
TriggerAutomaticGC();
pr.OnFinished();
pr = new ProgressReporter();
if (RunningTransforms != null)
RunningTransforms(pr);
RunTransformsOnAllFunctions(parallelOptions, pr, result.Log);
pr.OnFinished();
TriggerAutomaticGC();
pr = new ProgressReporter();
if (Writing != null)
Writing(pr);
// Assign a unique identifier for all participating assemblies up front
foreach (var assembly in assemblies) {
if (IsRedirected(assembly.FullName))
continue;
Manifest.GetPrivateToken(assembly);
}
Manifest.AssignIdentifiers();
Action<int> writeAssembly = (i) => {
var assembly = assemblies[i];
string outputPath = null;
if (ChooseCustomAssemblyName != null)
outputPath = ChooseCustomAssemblyName(
i == 0, assembly.Name.ToString()
);
if (outputPath == null)
outputPath = FormatOutputFilename(assembly.Name) + EmitterFactory.FileExtension;
long existingSize;
if (!Manifest.GetExistingSize(assembly, out existingSize)) {
using (var outputStream = new MemoryStream(DefaultStreamCapacity)) {
var sourceMapBuilder = Configuration.BuildSourceMap.GetValueOrDefault() ? new SourceMapBuilder() : null;
var context = MakeDecompilerContext(assembly.MainModule);
try {
TranslateSingleAssemblyInternal(context, assembly, outputStream, sourceMapBuilder);
} catch (Exception exc) {
throw new Exception("Error occurred while generating javascript for assembly '" + assembly.FullName + "'.", exc);
}
var segment = new ArraySegment<byte>(
outputStream.GetBuffer(), 0, (int)outputStream.Length
);
result.AddFile("Script", outputPath, segment, sourceMapBuilder:sourceMapBuilder);
Manifest.SetAlreadyTranslated(assembly, outputStream.Length);
}
lock (result.Assemblies)
result.Assemblies.Add(assembly);
} else {
Console.WriteLine("Skipping '{0}' because it is already translated...", assembly.Name);
result.AddExistingFile("Script", outputPath, existingSize);
}
pr.OnProgressChanged(result.Assemblies.Count, assemblies.Length);
};
if (Configuration.UseThreads.GetValueOrDefault(true)) {
Parallel.For(
0, assemblies.Length, parallelOptions, writeAssembly
);
} else {
for (var i = 0; i < assemblies.Length; i++)
writeAssembly(i);
}
TriggerAutomaticGC();
pr.OnFinished();
DoProxyDiagnostics();
return result;
}
private void DoProxyDiagnostics () {
if ((ProxyNotMatched == null) && (ProxyMemberNotMatched == null))
return;
var methodsToSkip = new HashSet<MemberIdentifier>(new MemberIdentifier.Comparer(TypeInfoProvider));
foreach (var p in TypeInfoProvider.Proxies) {
var ti = new TypeIdentifier(p.Definition);
if ((p.UsageCount == 0) && (ProxyNotMatched != null)) {
ProxyNotMatched(ti);
continue;
}
// If they explicitly disabled replacement for the type, none of the members got replaced
if (p.MemberPolicy == Proxy.JSProxyMemberPolicy.ReplaceNone)
continue;
if (ProxyMemberNotMatched != null) {
methodsToSkip.Clear();
foreach (var kvp in p.Properties) {
if (kvp.Value.CustomAttributes.Any(ca => ca.AttributeType.FullName == "JSIL.Proxy.JSNeverReplace")) {
var mi = kvp.Key;
if (kvp.Value.GetMethod != null)
methodsToSkip.Add(mi.Getter);
if (kvp.Value.SetMethod != null)
methodsToSkip.Add(mi.Setter);
continue;
}
}
foreach (var kvp in p.Methods) {
if (methodsToSkip.Contains(kvp.Key))
continue;
var identifier = kvp.Key;
// Don't log warnings on failed 0-arg default ctor replacement.
// Very often this just means the 0-arg ctor the compiler synthesized for the proxy didn't replace anything.
if (
(identifier.Name == ".ctor") &&
(
(identifier.ParameterTypes == null) || (identifier.ParameterTypes.Length == 0)
)
)
continue;
bool used;
p.MemberReplacedTable.TryGetValue(identifier, out used);
if (!used) {
// Member was explicitly marked as neverreplace, so of course it didn't replace anything
if (kvp.Value.CustomAttributes.Any(ca => ca.AttributeType.FullName == "JSIL.Proxy.JSNeverReplace"))
continue;
ProxyMemberNotMatched(new QualifiedMemberIdentifier(ti, identifier));
}
}
}
}
}
private void TriggerAutomaticGC () {
if (Configuration.TuneGarbageCollection.GetValueOrDefault(true))
#if TARGETTING_FX_4_5
GC.Collect(2, GCCollectionMode.Optimized, false);
#else
GC.Collect(2, GCCollectionMode.Optimized);
#endif
}
public static void GenerateManifest (AssemblyManifest manifest, string assemblyPath, TranslationResult result) {
using (var ms = new MemoryStream())
using (var tw = new StreamWriter(ms, new UTF8Encoding(false))) {
tw.WriteLine("// {0} {1}", GetHeaderText(), Environment.NewLine);
tw.WriteLine("'use strict';");
foreach (var kvp in manifest.Entries) {
tw.WriteLine(
"var {0} = JSIL.GetAssembly({1});",
kvp.Key, Util.EscapeString(kvp.Value, '\"')
);
}
if (result.Configuration.GenerateContentManifest.GetValueOrDefault(true)) {
tw.WriteLine();
tw.WriteLine("if (typeof (contentManifest) !== \"object\") { JSIL.GlobalNamespace.contentManifest = {}; };");
tw.WriteLine("contentManifest[\"" + Path.GetFileName(assemblyPath).Replace("\\", "\\\\") + "\"] = [");
foreach (var fe in result.OrderedFiles) {
var propertiesObject = FormatFileProperties(fe);
tw.WriteLine(String.Format(
" [{0}, {1}, {2}],",
Util.EscapeString(fe.Type),
Util.EscapeString(fe.Filename.Replace("\\", "/")),
propertiesObject
));
}
tw.WriteLine("];");
}
tw.Flush();
result.Manifest = new ArraySegment<byte>(
ms.GetBuffer(), 0, (int)ms.Length
);
}
}
private static string FormatFileProperties (TranslationResult.ResultFile fe) {
var result = "{ ";
result += "\"sizeBytes\": ";
result += fe.Size;
if (fe.Properties != null)
foreach (var kvp in fe.Properties) {
result += ", \"" + kvp.Key + "\": ";
if (kvp.Value is string)
result += Util.EscapeString((string)kvp.Value, forJson: true);
else
throw new NotImplementedException("File property of type '" + kvp.Value.GetType().Name);
}
result += " }";
return result;
}
private void AnalyzeFunctions (
ParallelOptions parallelOptions, AssemblyDefinition[] assemblies,
ConcurrentBag<MethodToAnalyze> methodsToAnalyze, ProgressReporter pr
) {
int i = 0, mc = methodsToAnalyze.Count;
Func<int, ParallelLoopState, DecompilerContext, DecompilerContext> analyzeAMethod = (_, loopState, ctx) => {
MethodToAnalyze m;
if (!methodsToAnalyze.TryTake(out m))
throw new InvalidDataException("Method collection mutated during analysis. Try setting UseThreads=false (and report an issue!)");
ctx.CurrentModule = m.MD.Module;
ctx.CurrentType = m.MD.DeclaringType;
ctx.CurrentMethod = m.MD;
try {
TranslateMethodExpression(ctx, m.MD, m.MD, m.MI);
} catch (Exception exc) {
throw new Exception("Error occurred while translating method '" + m.MD.FullName + "'.", exc);
}
var j = Interlocked.Increment(ref i);
pr.OnProgressChanged(mc + j, mc * 2);
return ctx;
};
if (Configuration.UseThreads.GetValueOrDefault(true)) {
Parallel.For(
0, methodsToAnalyze.Count, parallelOptions,
() => MakeDecompilerContext(assemblies[0].MainModule),
analyzeAMethod,
(ctx) => { }
);
} else {
var ctx = MakeDecompilerContext(assemblies[0].MainModule);
while (methodsToAnalyze.Count > 0)
analyzeAMethod(0, default(ParallelLoopState), ctx);
}
}
protected void RunTransformsOnAllFunctions (ParallelOptions parallelOptions, ProgressReporter pr, StringBuilder log) {
int i = 0;
const int autoGcInterval = 256;
Action<QualifiedMemberIdentifier> itemHandler = (id) => {
var e = FunctionCache.GetCacheEntry(id);
// We can end up with multiple copies of a function in the pipeline, so we should just early out if we hit a duplicate
if (e.TransformPipelineHasCompleted)
return;
var _i = Interlocked.Increment(ref i);
if ((_i % autoGcInterval) == 0)
TriggerAutomaticGC();
if (e.Expression == null)
return;
pr.OnProgressChanged(_i, _i + FunctionCache.PendingTransformsQueue.Count);
if (RunTransformsOnFunction(id, e.Expression, e.SpecialIdentifiers, log)) {
// Release our SpecialIdentifiers instance so it doesn't leak indefinitely.
// e.SpecialIdentifiers = null;
}
};
while (FunctionCache.PendingTransformsQueue.Count > 0) {
// FIXME: Disabled right now because there is a race condition where the optimizer can be
// altering the static analysis information for a function while another function
// that depends on it is being optimized.
if (Configuration.CodeGenerator.EnableThreadedTransforms.GetValueOrDefault(true)) {
Parallel.ForEach(
FunctionCache.PendingTransformsQueue.TryDequeueAll,
parallelOptions, itemHandler
);
} else {
QualifiedMemberIdentifier _id;
while (FunctionCache.PendingTransformsQueue.TryDequeue(out _id))
itemHandler(_id);
}
}
}
// Invoking this function populates the type information graph, and builds a list
// of functions to analyze/optimize/translate (omitting ignored functions, etc).
private void GetMethodsToAnalyze (AssemblyDefinition assembly, ConcurrentBag<MethodToAnalyze> allMethods) {
bool isStubbed = IsStubbed(assembly);
var parallelOptions = GetParallelOptions();
var allTypes = new List<TypeDefinition>();
foreach (var module in assembly.Modules) {
var moduleInfo = TypeInfoProvider.GetModuleInformation(module);
if (moduleInfo.IsIgnored)
continue;
allTypes.AddRange(module.Types);
}
while (allTypes.Count > 0) {
var types = new HashSet<TypeDefinition>(allTypes).ToList();
allTypes.Clear();
Parallel.For(
0, types.Count, parallelOptions,
() => new List<TypeDefinition>(),
(i, loopState, typeList) => {
var type = types[i];
typeList.AddRange(type.NestedTypes);
if (!ShouldTranslateMethods(type)) {
var info = TypeInfoProvider.GetTypeInformation(type);
if (info != null)
{
if (info.IsProxy && info.Metadata.HasAttribute("JSIL.Meta.JSImportType"))
{
typeList.AddRange(TypeInfoProvider.FindTypeProxy(new TypeIdentifier(info.Definition)).ProxiedTypes.Select(item => item.Resolve()));
}
}
return typeList;
}
IEnumerable<MethodDefinition> methods = type.Methods;
var typeInfo = TypeInfoProvider.GetExisting(type);
if (typeInfo != null) {
if (typeInfo.StaticConstructor != null) {
methods = methods.Concat(new[] { typeInfo.StaticConstructor });
}
foreach (var esc in typeInfo.ExtraStaticConstructors) {
allMethods.Add(new MethodToAnalyze(esc));
}
}
foreach (var m in methods) {
var mi = TypeInfoProvider.GetMethod(m);
if ((mi == null) || (mi.IsIgnored))
continue;
// A pinvoke method with no body can be replaced by a proxy method body
if (!m.HasBody && !mi.IsFromProxy)
continue;
if (isStubbed && !mi.IsUnstubbable) {
var isProperty = mi.DeclaringProperty != null;
if (!(isProperty && m.IsCompilerGenerated()))
continue;
}
allMethods.Add(new MethodToAnalyze(m));
}
return typeList;
},
(typeList) => {
lock (allTypes)
allTypes.AddRange(typeList);
}
);
}
}
public bool IsIgnored (AssemblyDefinition assembly) {
foreach (var sa in Configuration.Assemblies.Ignored) {
if (Regex.IsMatch(assembly.FullName, sa, RegexOptions.IgnoreCase)) {
return true;
}
}
return false;
}
public bool IsStubbed (AssemblyDefinition assembly) {
foreach (var sa in Configuration.Assemblies.Stubbed) {
if (Regex.IsMatch(assembly.FullName, sa, RegexOptions.IgnoreCase)) {
return true;
}
}
return false;
}
public static string GetHeaderText () {
var version = Assembly.GetExecutingAssembly().GetName().Version;
return String.Format(
"Generated by JSIL v{0}.{1}.{2} build {3}. See http://jsil.org/ for more information.",
version.Major, version.Minor, version.Build, version.Revision
);
}
protected void TranslateSingleAssemblyInternal (DecompilerContext context, AssemblyDefinition assembly, Stream outputStream, SourceMapBuilder sourceMapBuilder) {
bool stubbed = IsStubbed(assembly);
var tw = new StreamWriter(outputStream, Encoding.ASCII);
string assemblyDeclarationReplacement = null;
var metadata = new MetadataCollection(assembly);
if (metadata.HasAttribute("JSIL.Meta.JSRepaceAssemblyDeclaration"))
{
assemblyDeclarationReplacement = (string) metadata.GetAttributeParameters("JSIL.Meta.JSRepaceAssemblyDeclaration")[0].Value;
}
var overrides =
assembly.CustomAttributes.Where(
item => item.AttributeType.FullName == "JSIL.Meta.JSOverrideAssemblyReference")
.ToDictionary(
item =>
Manifest.GetPrivateToken(
((TypeReference) (item.ConstructorArguments[0].Value)).Resolve().Module.Assembly),
item => (string) (item.ConstructorArguments[1].Value));
var formatter = new JavascriptFormatter(
tw, sourceMapBuilder, this.TypeInfoProvider, Manifest, assembly, Configuration, assemblyDeclarationReplacement, stubbed
);
var assemblyEmitter = EmitterFactory.MakeAssemblyEmitter(this, assembly, formatter, overrides.Count > 0 ? overrides : null);
assemblyEmitter.EmitHeader(stubbed);
if (assembly.EntryPoint != null)
TranslateEntryPoint(assemblyEmitter, assembly);
var sealedTypes = new HashSet<TypeDefinition>();
var declaredTypes = new HashSet<TypeDefinition>();
foreach (var module in assembly.Modules) {
if (module.Assembly != assembly) {
WarningFormat("Warning: Mono.Cecil failed to correctly load the module '{0}'. Skipping it.", module);
continue;
}
TranslateModule(context, assemblyEmitter, module, sealedTypes, declaredTypes, stubbed);
}
TranslateImportedTypes(assembly, assemblyEmitter, declaredTypes, stubbed);
assemblyEmitter.EmitFooter();
tw.Flush();
}
protected void TranslateEntryPoint (
IAssemblyEmitter emitter,
AssemblyDefinition assembly
) {
var entryMethod = assembly.EntryPoint;
var signature = new MethodSignature(
TypeInfoProvider,
entryMethod.ReturnType,
(from p in entryMethod.Parameters select p.ParameterType).ToArray(),
null
);
emitter.EmitAssemblyEntryPoint(
assembly, entryMethod, signature
);
}
protected void TranslateImportedTypes(AssemblyDefinition assembly, IAssemblyEmitter assemblyEmitter,
HashSet<TypeDefinition> declaredTypes, bool stubbed)
{
var typesToImport = assembly
.Modules
.SelectMany(item => item.Types)
.Select(type => TypeInfoProvider.GetTypeInformation(type))
.Where(item => item.IsProxy && item.Metadata.HasAttribute("JSIL.Meta.JSImportType"))
.Select(item => TypeInfoProvider.FindTypeProxy(new TypeIdentifier(item.Definition)))
.SelectMany(item => item.ProxiedTypes)
.Select(item => item.Resolve())
.GroupBy(item => item.Module)
.GroupBy(item => item.Key.Assembly).ToList();
if (typesToImport.Count == 0)
{
return;
}
foreach (var byAssembly in typesToImport)
{
var context = MakeDecompilerContext(byAssembly.Key.MainModule);