/* ****************************************************************************

*

* Copyright (c) Microsoft Corporation.

*

* This source code is subject to terms and conditions of the Apache License, Version 2.0. A

* copy of the license can be found in the License.html file at the root of this distribution. If

* you cannot locate the Apache License, Version 2.0, please send an email to

* dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound

* by the terms of the Apache License, Version 2.0.

*

* You must not remove this notice, or any other, from this software.

*

*

* ***************************************************************************/

#if FEATURE_REFEMIT

using System.Linq.Expressions;

using System;

using System.Collections.Generic;

using System.Reflection;

using System.Reflection.Emit;

using Microsoft.Scripting;

using Microsoft.Scripting.Generation;

using Microsoft.Scripting.Runtime;

using Microsoft.Scripting.Utils;

using IronPython.Runtime;

using IronPython.Runtime.Operations;

namespace IronPython.Compiler {

/// <summary>

/// A ScriptCode which can be saved to disk. We only create this when called via

/// the clr.CompileModules API. This ScriptCode does not support running.

/// </summary>

class PythonSavableScriptCode : SavableScriptCode, ICustomScriptCodeData {

private readonly Expression<LookupCompilationDelegate> _code;

private readonly string[] _names;

private readonly string _moduleName;

public PythonSavableScriptCode(Expression<LookupCompilationDelegate> code, SourceUnit sourceUnit, string[] names, string moduleName)

: base(sourceUnit) {

_code = code;

_names = names;

_moduleName = moduleName;

}

#if !NETCOREAPP2_0

protected override KeyValuePair<MethodBuilder, Type> CompileForSave(TypeGen typeGen) {

var lambda = RewriteForSave(typeGen, _code);

MethodBuilder mb = typeGen.TypeBuilder.DefineMethod(lambda.Name ?? "lambda_method", CompilerHelpers.PublicStatic | MethodAttributes.SpecialName);

lambda.CompileToMethod(mb);

mb.SetCustomAttribute(new CustomAttributeBuilder(

typeof(CachedOptimizedCodeAttribute).GetConstructor(new Type[] { typeof(string[]) }),

new object[] { _names }

));

return new KeyValuePair<MethodBuilder, Type>(mb, typeof(LookupCompilationDelegate));

}

#endif

public override object Run() {

throw new NotSupportedException();

}

public override object Run(Scope scope) {

throw new NotSupportedException();

}

public override Scope CreateScope() {

throw new NotSupportedException();

}

#region ICustomScriptCodeData Members

string ICustomScriptCodeData.GetCustomScriptCodeData() {

return _moduleName;

}

#endregion

}

}

#endif