reko/src/Scripts/Python/PythonAPI.cs at master · gitmesam/reko · GitHub

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#region License

* This program is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 2, or (at your option)

* any later version.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program; see the file COPYING. If not, write to

* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

#endregion

using Microsoft.Scripting.Hosting;

using Reko.Core.Configuration;

using Reko.Core.Services;

using System;

using System.Collections.Generic;

using System.IO;

namespace Reko.Scripts.Python

{

/// <summary>

/// Сlass for evaluation of Python API definitions which can be used in

/// user-defined scripts.

/// </summary>

public class PythonAPI

{

public PythonAPI(

IConfigurationService cfgSvc,

IFileSystemService fsSvc,

ScriptEngine engine)

{

this.CreateProgramWrapper = EvaluatePythonDefinitions(

cfgSvc, fsSvc, engine, "_program.py", "Program");

this.CreateRekoWrapper = EvaluatePythonDefinitions(

cfgSvc, fsSvc, engine, "_reko.py", "Reko");

}

public readonly Func<object, object> CreateProgramWrapper;

public readonly Func<object, object> CreateRekoWrapper;

private static Func<object, object> EvaluatePythonDefinitions(

IConfigurationService cfgSvc,

IFileSystemService fsSvc,

ScriptEngine engine,

string fileName,

string className)

{

var scope = engine.CreateScope();

var fileDirectory = "Python";

var absolutePath = cfgSvc.GetInstallationRelativePath(

fileDirectory, fileName);

var src = CreateScriptSource(fsSvc, engine, absolutePath);

src.Execute(scope);

return scope.GetVariable<Func<object, object>>(className);

}

private static ScriptSource CreateScriptSource(

IFileSystemService fsSvc,

ScriptEngine engine,

string path)

{

var bytes = fsSvc.ReadAllBytes(path);

var stream = new MemoryStream(bytes);

using var rdr = new StreamReader(stream);

var script = rdr.ReadToEnd();

return engine.CreateScriptSourceFromString(script, path);

}

reko/src/Scripts/Python/PythonAPI.cs at master · gitmesam/reko · GitHub

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