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//
// LinkContext.cs
//
// Author:
// Jb Evain (jbevain@gmail.com)
//
// (C) 2006 Jb Evain
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.IO;
using Mono.Cecil;
using Mono.Cecil.Cil;
namespace Mono.Linker {
public class LinkContext : IDisposable {
Pipeline _pipeline;
AssemblyAction _coreAction;
Dictionary<string, AssemblyAction> _actions;
string _outputDirectory;
readonly Dictionary<string, string> _parameters;
bool _linkSymbols;
bool _keepTypeForwarderOnlyAssemblies;
bool _keepMembersForDebuggerAttributes;
AssemblyResolver _resolver;
ReaderParameters _readerParameters;
ISymbolReaderProvider _symbolReaderProvider;
ISymbolWriterProvider _symbolWriterProvider;
AnnotationStore _annotations;
public Pipeline Pipeline {
get { return _pipeline; }
}
public AnnotationStore Annotations {
get { return _annotations; }
}
public string OutputDirectory {
get { return _outputDirectory; }
set { _outputDirectory = value; }
}
public AssemblyAction CoreAction {
get { return _coreAction; }
set { _coreAction = value; }
}
public bool LinkSymbols {
get { return _linkSymbols; }
set { _linkSymbols = value; }
}
public bool KeepTypeForwarderOnlyAssemblies
{
get { return _keepTypeForwarderOnlyAssemblies; }
set { _keepTypeForwarderOnlyAssemblies = value; }
}
public bool KeepMembersForDebuggerAttributes
{
get { return _keepMembersForDebuggerAttributes; }
set { _keepMembersForDebuggerAttributes = value; }
}
public System.Collections.IDictionary Actions {
get { return _actions; }
}
public AssemblyResolver Resolver {
get { return _resolver; }
}
public ReaderParameters ReaderParameters {
get { return _readerParameters; }
}
public ISymbolReaderProvider SymbolReaderProvider {
get { return _symbolReaderProvider; }
set { _symbolReaderProvider = value; }
}
public ISymbolWriterProvider SymbolWriterProvider {
get { return _symbolWriterProvider; }
set { _symbolWriterProvider = value; }
}
public bool LogInternalExceptions { get; set; } = false;
public LinkContext (Pipeline pipeline)
: this (pipeline, new AssemblyResolver ())
{
}
public LinkContext (Pipeline pipeline, AssemblyResolver resolver)
: this(pipeline, resolver, new ReaderParameters
{
AssemblyResolver = resolver
},
new AnnotationStore ())
{
}
public LinkContext (Pipeline pipeline, AssemblyResolver resolver, ReaderParameters readerParameters, AnnotationStore annotations)
{
_pipeline = pipeline;
_resolver = resolver;
_actions = new Dictionary<string, AssemblyAction> ();
_parameters = new Dictionary<string, string> ();
_annotations = annotations;
_readerParameters = readerParameters;
}
public TypeDefinition GetType (string fullName)
{
int pos = fullName.IndexOf (",");
fullName = fullName.Replace ("+", "/");
if (pos == -1) {
foreach (AssemblyDefinition asm in GetAssemblies ()) {
var type = asm.MainModule.GetType (fullName);
if (type != null)
return type;
}
return null;
}
string asmname = fullName.Substring (pos + 1);
fullName = fullName.Substring (0, pos);
AssemblyDefinition assembly = Resolve (AssemblyNameReference.Parse (asmname));
return assembly.MainModule.GetType (fullName);
}
public AssemblyDefinition Resolve (string name)
{
if (File.Exists (name)) {
AssemblyDefinition assembly = AssemblyDefinition.ReadAssembly (name, _readerParameters);
return _resolver.CacheAssembly (assembly);
}
return Resolve (new AssemblyNameReference (name, new Version ()));
}
public AssemblyDefinition Resolve (IMetadataScope scope)
{
AssemblyNameReference reference = GetReference (scope);
try {
AssemblyDefinition assembly = _resolver.Resolve (reference, _readerParameters);
if (SeenFirstTime (assembly)) {
SafeReadSymbols (assembly);
SetAction (assembly);
}
return assembly;
}
catch {
throw new AssemblyResolutionException (reference);
}
}
protected bool SeenFirstTime (AssemblyDefinition assembly)
{
return !_annotations.HasAction (assembly);
}
public virtual void SafeReadSymbols (AssemblyDefinition assembly)
{
if (!_linkSymbols)
return;
if (assembly.MainModule.HasSymbols)
return;
try {
if (_symbolReaderProvider != null) {
var symbolReader = _symbolReaderProvider.GetSymbolReader (
assembly.MainModule,
assembly.MainModule.FileName);
_annotations.AddSymbolReader (assembly, symbolReader);
assembly.MainModule.ReadSymbols (symbolReader);
} else
assembly.MainModule.ReadSymbols ();
} catch {}
}
public virtual ICollection<AssemblyDefinition> ResolveReferences (AssemblyDefinition assembly)
{
List<AssemblyDefinition> references = new List<AssemblyDefinition> ();
foreach (AssemblyNameReference reference in assembly.MainModule.AssemblyReferences) {
try {
references.Add (Resolve (reference));
}
catch (AssemblyResolutionException) {
}
}
return references;
}
static AssemblyNameReference GetReference (IMetadataScope scope)
{
AssemblyNameReference reference;
if (scope is ModuleDefinition) {
AssemblyDefinition asm = ((ModuleDefinition) scope).Assembly;
reference = asm.Name;
} else
reference = (AssemblyNameReference) scope;
return reference;
}
protected void SetAction (AssemblyDefinition assembly)
{
AssemblyAction action;
AssemblyNameDefinition name = assembly.Name;
if (_actions.TryGetValue (name.Name, out action)) {
} else if (IsCore (name)) {
action = _coreAction;
} else {
action = AssemblyAction.Link;
}
_annotations.SetAction (assembly, action);
}
static bool IsCore (AssemblyNameReference name)
{
switch (name.Name) {
case "mscorlib":
case "Accessibility":
case "Mono.Security":
// WPF
case "PresentationFramework":
case "PresentationCore":
case "WindowsBase":
case "UIAutomationProvider":
case "UIAutomationTypes":
case "PresentationUI":
case "ReachFramework":
return true;
default:
return name.Name.StartsWith ("System")
|| name.Name.StartsWith ("Microsoft");
}
}
public AssemblyDefinition [] GetAssemblies ()
{
var cache = _resolver.AssemblyCache;
AssemblyDefinition [] asms = new AssemblyDefinition [cache.Count];
cache.Values.CopyTo (asms, 0);
return asms;
}
public void SetParameter (string key, string value)
{
_parameters [key] = value;
}
public bool HasParameter (string key)
{
return _parameters.ContainsKey (key);
}
public string GetParameter (string key)
{
string val = null;
_parameters.TryGetValue (key, out val);
return val;
}
public void Dispose ()
{
_resolver.Dispose ();
}
}
}
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