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/**
* Copyright (c) David Miller. All rights reserved.
* The use and distribution terms for this software are covered by the
* Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
* which can be found in the file epl-v10.html at the root of this distribution.
* By using this software in any fashion, you are agreeing to be bound by
* the terms of this license.
* You must not remove this notice, or any other, from this software.
**/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Scripting.Hosting.Shell;
using clojure.lang;
using System.IO;
using Microsoft.Linq.Expressions;
using Microsoft.Scripting.Generation;
using Microsoft.Scripting;
using Microsoft.Scripting.Runtime;
using Microsoft.Scripting.Hosting;
using Microsoft.Scripting.Hosting.Providers;
using System.Diagnostics;
using System.Resources;
using System.Threading;
using clojure.runtime;
using clojure.compiler;
namespace clojure.console
{
class ClojureConsole : ConsoleHost, Compiler.EEHooks
{
#region Data
private bool _isInitialized = false;
#endregion
#region Convenience accessors
private ClojureContext GetLanguageContext()
{
return (ClojureContext)HostingHelpers.GetLanguageContext(Engine);
}
private static SourceUnit GetSourceUnit(ScriptSource scriptSource)
{
return HostingHelpers.GetSourceUnit(scriptSource);
}
#endregion
#region Basic overrides
protected override Type Provider
{
get
{
return typeof(ClojureContext);
}
}
protected override CommandLine CreateCommandLine()
{
return new ClojureCommandLine();
}
#endregion
#region Main routine
[STAThread]
static int Main(string[] args)
{
ClojureConsole cc = new ClojureConsole();
int ret = cc.Run(args);
Console.ReadLine();
return ret;
}
#endregion
#region Execution override
protected override void ExecuteInternal()
{
Debug.Assert(Engine != null);
Var.pushThreadBindings(
RT.map(RT.CURRENT_NS, RT.CURRENT_NS.deref()));
try
{
Snippets.SetSaveAssemblies(true, ".");
MaybeInitialize();
Snippets.SaveAndVerifyAssemblies();
base.ExecuteInternal();
}
catch (Exception e)
{
UnhandledException(Engine, e);
}
finally
{
Snippets.SaveAndVerifyAssemblies();
Var.popThreadBindings();
}
}
#endregion
#region Initialization
private void MaybeInitialize()
{
if (_isInitialized)
return;
_isInitialized = true;
Compiler.SetHooks(this);
Stopwatch sw = new Stopwatch();
sw.Start();
LoadFromStream(new StringReader(clojure.properties.Resources.core));
LoadFromStream(new StringReader(clojure.properties.Resources.core_print));
LoadFromStream(new StringReader(clojure.properties.Resources.test));
sw.Stop();
Console.WriteLine("Loading took {0} milliseconds.", sw.ElapsedMilliseconds);
}
#endregion
#region EEHooks Members
public object Eval(object form)
{
ScriptSource scriptSource = Engine.CreateScriptSourceFromString("<internal>");
Expression expr = Generator.Eval(GetLanguageContext(), form);
LambdaExpression ast = Expression.Lambda(expr);
ast = new GlobalLookupRewriter().RewriteLambda(ast);
ScriptCode code = new ScriptCode(ast, GetSourceUnit(scriptSource));
return code.Run();
}
public object Macroexpand1(object form)
{
return Generator.Macroexpand1(GetLanguageContext(), form);
}
public object LoadFromStream(TextReader rdr)
{
ScriptSource scriptSource = Engine.CreateScriptSourceFromString("<already opened TextReader>");
//PushbackReader pbr = new PushbackReader(rdr);
return LoadFromPushbackReader(scriptSource, rdr, false);
}
public object LoadFile(string filename)
{
ScriptSource scriptSource = Engine.CreateScriptSourceFromFile(filename);
return LoadFromPushbackReader(scriptSource, scriptSource.GetReader(), false);
}
private static object LoadFromPushbackReader(ScriptSource scriptSource, TextReader pbr, bool addPrint)
{
object ret = null;
object eofVal = new object();
object form;
while ((form = LispReader.read(pbr, false, eofVal, false)) != eofVal)
{
LambdaExpression ast = Generator.Generate(form, addPrint);
ast = new GlobalLookupRewriter().RewriteLambda(ast);
ScriptCode code = new ScriptCode(ast, GetSourceUnit(scriptSource));
ret = code.Run();
}
return ret;
}
public Delegate GenerateTypedDelegate(Type delegateType, Symbol optName, IPersistentVector argList, ISeq body)
{
ScriptSource scriptSource = Engine.CreateScriptSourceFromString("<internal>");
LambdaExpression ast = Generator.GenerateTypedDelegateExpression(GetLanguageContext(), delegateType, optName, argList, body);
return ast.Compile();
//ast = new GlobalLookupRewriter().RewriteLambda(ast); -- doesn't work unless no args
//ScriptCode code = new ScriptCode(ast, GetSourceUnit(scriptSource));
//return code;
}
#endregion
protected override ScriptRuntimeSetup CreateRuntimeSetup()
{
ScriptRuntimeSetup setup = base.CreateRuntimeSetup();
setup.DebugMode = true;
return setup;
}
}
}
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