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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the Apache 2.0 License.
// See the LICENSE file in the project root for more information.
using System;
using System.Collections.Generic;
using Microsoft.Scripting.Utils;
using Microsoft.Scripting.Hosting;
using Microsoft.Scripting.Hosting.Providers;
using Microsoft.Scripting.Runtime;
using IronPython.Modules;
using IronPython.Runtime;
using IronPython.Runtime.Exceptions;
namespace IronPython.Hosting {
/// <summary>
/// Provides helpers for interacting with IronPython.
/// </summary>
public static class Python {
#region Public APIs
/// <summary>
/// Creates a new ScriptRuntime with the IronPython scipting engine pre-configured.
/// </summary>
/// <returns></returns>
public static ScriptRuntime/*!*/ CreateRuntime() {
return new ScriptRuntime(CreateRuntimeSetup(null));
}
/// <summary>
/// Creates a new ScriptRuntime with the IronPython scipting engine pre-configured and
/// additional options.
/// </summary>
public static ScriptRuntime/*!*/ CreateRuntime(IDictionary<string, object> options) {
return new ScriptRuntime(CreateRuntimeSetup(options));
}
#if FEATURE_REMOTING
/// <summary>
/// Creates a new ScriptRuntime with the IronPython scripting engine pre-configured
/// in the specified AppDomain. The remote ScriptRuntime may be manipulated from
/// the local domain but all code will run in the remote domain.
/// </summary>
public static ScriptRuntime/*!*/ CreateRuntime(AppDomain/*!*/ domain) {
ContractUtils.RequiresNotNull(domain, "domain");
return ScriptRuntime.CreateRemote(domain, CreateRuntimeSetup(null));
}
/// <summary>
/// Creates a new ScriptRuntime with the IronPython scripting engine pre-configured
/// in the specified AppDomain with additional options. The remote ScriptRuntime may
/// be manipulated from the local domain but all code will run in the remote domain.
/// </summary>
public static ScriptRuntime/*!*/ CreateRuntime(AppDomain/*!*/ domain, IDictionary<string, object> options) {
ContractUtils.RequiresNotNull(domain, "domain");
return ScriptRuntime.CreateRemote(domain, CreateRuntimeSetup(options));
}
#endif
/// <summary>
/// Creates a new ScriptRuntime and returns the ScriptEngine for IronPython. If
/// the ScriptRuntime is required it can be acquired from the Runtime property
/// on the engine.
/// </summary>
public static ScriptEngine/*!*/ CreateEngine() {
return GetEngine(CreateRuntime());
}
/// <summary>
/// Creates a new ScriptRuntime with the specified options and returns the
/// ScriptEngine for IronPython. If the ScriptRuntime is required it can be
/// acquired from the Runtime property on the engine.
/// </summary>
public static ScriptEngine/*!*/ CreateEngine(IDictionary<string, object> options) {
return GetEngine(CreateRuntime(options));
}
#if FEATURE_REMOTING
/// <summary>
/// Creates a new ScriptRuntime and returns the ScriptEngine for IronPython. If
/// the ScriptRuntime is required it can be acquired from the Runtime property
/// on the engine.
///
/// The remote ScriptRuntime may be manipulated from the local domain but
/// all code will run in the remote domain.
/// </summary>
public static ScriptEngine/*!*/ CreateEngine(AppDomain/*!*/ domain) {
return GetEngine(CreateRuntime(domain));
}
/// <summary>
/// Creates a new ScriptRuntime with the specified options and returns the
/// ScriptEngine for IronPython. If the ScriptRuntime is required it can be
/// acquired from the Runtime property on the engine.
///
/// The remote ScriptRuntime may be manipulated from the local domain but
/// all code will run in the remote domain.
/// </summary>
public static ScriptEngine/*!*/ CreateEngine(AppDomain/*!*/ domain, IDictionary<string, object> options) {
return GetEngine(CreateRuntime(domain, options));
}
#endif
/// <summary>
/// Given a ScriptRuntime gets the ScriptEngine for IronPython.
/// </summary>
public static ScriptEngine/*!*/ GetEngine(ScriptRuntime/*!*/ runtime) {
return runtime.GetEngineByTypeName(typeof(PythonContext).AssemblyQualifiedName);
}
/// <summary>
/// Gets a ScriptScope which is the Python sys module for the provided ScriptRuntime.
/// </summary>
public static ScriptScope/*!*/ GetSysModule(this ScriptRuntime/*!*/ runtime) {
ContractUtils.RequiresNotNull(runtime, "runtime");
return GetSysModule(GetEngine(runtime));
}
/// <summary>
/// Gets a ScriptScope which is the Python sys module for the provided ScriptEngine.
/// </summary>
public static ScriptScope/*!*/ GetSysModule(this ScriptEngine/*!*/ engine) {
ContractUtils.RequiresNotNull(engine, "engine");
return GetPythonService(engine).GetSystemState();
}
/// <summary>
/// Gets a ScriptScope which is the Python __builtin__ module for the provided ScriptRuntime.
/// </summary>
public static ScriptScope/*!*/ GetBuiltinModule(this ScriptRuntime/*!*/ runtime) {
ContractUtils.RequiresNotNull(runtime, "runtime");
return GetBuiltinModule(GetEngine(runtime));
}
/// <summary>
/// Gets a ScriptScope which is the Python __builtin__ module for the provided ScriptEngine.
/// </summary>
public static ScriptScope/*!*/ GetBuiltinModule(this ScriptEngine/*!*/ engine) {
ContractUtils.RequiresNotNull(engine, "engine");
return GetPythonService(engine).GetBuiltins();
}
/// <summary>
/// Gets a ScriptScope which is the Python clr module for the provided ScriptRuntime.
/// </summary>
public static ScriptScope/*!*/ GetClrModule(this ScriptRuntime/*!*/ runtime) {
ContractUtils.RequiresNotNull(runtime, "runtime");
return GetClrModule(GetEngine(runtime));
}
/// <summary>
/// Gets a ScriptScope which is the Python clr module for the provided ScriptEngine.
/// </summary>
public static ScriptScope/*!*/ GetClrModule(this ScriptEngine/*!*/ engine) {
ContractUtils.RequiresNotNull(engine, "engine");
return GetPythonService(engine).GetClr();
}
/// <summary>
/// Imports the Python module by the given name and returns its ScriptSCope. If the
/// module does not exist an exception is raised.
/// </summary>
public static ScriptScope/*!*/ ImportModule(this ScriptRuntime/*!*/ runtime, string/*!*/ moduleName) {
ContractUtils.RequiresNotNull(runtime, "runtime");
ContractUtils.RequiresNotNull(moduleName, "moduleName");
return ImportModule(GetEngine(runtime), moduleName);
}
/// <summary>
/// Imports the Python module by the given name and returns its ScriptSCope. If the
/// module does not exist an exception is raised.
/// </summary>
public static ScriptScope/*!*/ ImportModule(this ScriptEngine/*!*/ engine, string/*!*/ moduleName) {
ContractUtils.RequiresNotNull(engine, "engine");
ContractUtils.RequiresNotNull(moduleName, "moduleName");
return GetPythonService(engine).ImportModule(engine, moduleName);
}
/// <summary>
/// Imports the Python module by the given name and inserts it into the ScriptScope as that name. If the
/// module does not exist an exception is raised.
/// </summary>
/// <param name="scope"></param>
/// <param name="moduleName"></param>
public static void ImportModule (this ScriptScope/*!*/ scope, string/*!*/ moduleName) {
ContractUtils.RequiresNotNull (scope, "scope");
ContractUtils.RequiresNotNull (moduleName, "moduleName");
scope.SetVariable (moduleName, scope.Engine.ImportModule (moduleName));
}
/// <summary>
/// Sets sys.exec_prefix, sys.executable and sys.version and adds the prefix to sys.path
/// </summary>
public static void SetHostVariables(this ScriptRuntime/*!*/ runtime, string/*!*/ prefix, string/*!*/ executable, string/*!*/ version) {
ContractUtils.RequiresNotNull(runtime, "runtime");
ContractUtils.RequiresNotNull(prefix, "prefix");
ContractUtils.RequiresNotNull(executable, "executable");
ContractUtils.RequiresNotNull(version, "version");
GetPythonContext(GetEngine(runtime)).SetHostVariables(prefix, executable, version);
}
/// <summary>
/// Sets sys.exec_prefix, sys.executable and sys.version and adds the prefix to sys.path
/// </summary>
public static void SetHostVariables(this ScriptEngine/*!*/ engine, string/*!*/ prefix, string/*!*/ executable, string/*!*/ version) {
ContractUtils.RequiresNotNull(engine, "engine");
ContractUtils.RequiresNotNull(prefix, "prefix");
ContractUtils.RequiresNotNull(executable, "executable");
ContractUtils.RequiresNotNull(version, "version");
GetPythonContext(engine).SetHostVariables(prefix, executable, version);
}
/// <summary>
/// Enables call tracing for the current thread in this ScriptEngine.
///
/// TracebackDelegate will be called back for each function entry, exit, exception, and line change.
/// </summary>
public static void SetTrace(this ScriptEngine/*!*/ engine, TracebackDelegate traceFunc) {
SysModule.settrace(GetPythonContext(engine).SharedContext, traceFunc);
}
/// <summary>
/// Enables call tracing for the current thread for the Python engine in this ScriptRuntime.
///
/// TracebackDelegate will be called back for each function entry, exit, exception, and line change.
/// </summary>
public static void SetTrace(this ScriptRuntime/*!*/ runtime, TracebackDelegate traceFunc) {
SetTrace(GetEngine(runtime), traceFunc);
}
/// <summary>
/// Provides nested level debugging support when SetTrace or SetProfile are used.
///
/// This saves the current tracing information and then calls the provided object.
/// </summary>
public static void CallTracing(this ScriptRuntime/*!*/ runtime, object traceFunc, params object[] args) {
CallTracing(GetEngine(runtime), traceFunc, args);
}
/// <summary>
/// Provides nested level debugging support when SetTrace or SetProfile are used.
///
/// This saves the current tracing information and then calls the provided object.
/// </summary>
public static void CallTracing(this ScriptEngine/*!*/ engine, object traceFunc, params object[] args) {
SysModule.call_tracing(GetPythonContext(engine).SharedContext, traceFunc, PythonTuple.MakeTuple(args));
}
/// <summary>
/// Creates a ScriptRuntimeSetup object which includes the Python script engine with the specified options.
///
/// The ScriptRuntimeSetup object can then be additional configured and used to create a ScriptRuntime.
/// </summary>
public static ScriptRuntimeSetup/*!*/ CreateRuntimeSetup(IDictionary<string, object> options) {
ScriptRuntimeSetup setup = new ScriptRuntimeSetup();
setup.LanguageSetups.Add(CreateLanguageSetup(options));
if (options != null) {
object value;
if (options.TryGetValue("Debug", out value) &&
value is bool &&
(bool)value) {
setup.DebugMode = true;
}
if (options.TryGetValue("PrivateBinding", out value) &&
value is bool &&
(bool)value) {
setup.PrivateBinding = true;
}
}
return setup;
}
/// <summary>
/// Creates a LanguageSetup object which includes the Python script engine with the specified options.
///
/// The LanguageSetup object can be used with other LanguageSetup objects from other languages to
/// configure a ScriptRuntimeSetup object.
/// </summary>
public static LanguageSetup/*!*/ CreateLanguageSetup(IDictionary<string, object> options) {
var setup = new LanguageSetup(
typeof(PythonContext).AssemblyQualifiedName,
PythonContext.IronPythonDisplayName,
PythonContext.IronPythonNames.Split(';'),
PythonContext.IronPythonFileExtensions.Split(';')
);
if (options != null) {
foreach (var entry in options) {
setup.Options.Add(entry.Key, entry.Value);
}
}
return setup;
}
/// <summary>
/// Creates a new PythonModule with the specified name and published it in sys.modules.
///
/// Returns the ScriptScope associated with the module.
/// </summary>
public static ScriptScope CreateModule(this ScriptEngine engine, string name) {
return GetPythonService(engine).CreateModule(name, String.Empty, String.Empty);
}
/// <summary>
/// Creates a new PythonModule with the specified name and filename published it
/// in sys.modules.
///
/// Returns the ScriptScope associated with the module.
/// </summary>
public static ScriptScope CreateModule(this ScriptEngine engine, string name, string filename) {
return GetPythonService(engine).CreateModule(name, filename, String.Empty);
}
/// <summary>
/// Creates a new PythonModule with the specified name, filename, and doc string and
/// published it in sys.modules.
///
/// Returns the ScriptScope associated with the module.
/// </summary>
public static ScriptScope CreateModule(this ScriptEngine engine, string name, string filename, string docString) {
return GetPythonService(engine).CreateModule(name, filename, docString);
}
/// <summary>
/// Gets the list of loaded Python module files names which are available in the provided ScriptEngine.
/// </summary>
public static string[] GetModuleFilenames(this ScriptEngine engine) {
return GetPythonService(engine).GetModuleFilenames();
}
#endregion
#region Private helpers
private static PythonService/*!*/ GetPythonService(ScriptEngine/*!*/ engine) {
return engine.GetService<PythonService>(engine);
}
private static PythonContext/*!*/ GetPythonContext(ScriptEngine/*!*/ engine) {
return HostingHelpers.GetLanguageContext(engine) as PythonContext;
}
#endregion
}
}