public static object Eval(ScriptEngine engine, object code)
{
if (TypeUtilities.IsString(code) == false)
{
return(code);
}
return(engine.Eval(TypeConverter.ToString(code), RuntimeScope.CreateGlobalScope(engine), engine.Global, false));
}
/// <summary>
/// Executes the compiled script.
/// </summary>
/// <param name="engine"> The script engine to use to execute the script. </param>
/// <exception cref="ArgumentNullException"> <paramref name="engine"/> is a <c>null</c> reference. </exception>
public void Execute(ScriptEngine engine)
{
try
{
methodGen.Execute(engine, RuntimeScope.CreateGlobalScope(engine), engine.Global);
// Execute any pending callbacks.
engine.ExecutePostExecuteSteps();
}
finally
{
// Ensure the list of post-execute steps is cleared if there is an exception.
engine.ClearPostExecuteSteps();
}
}
// INITIALIZATION
//_________________________________________________________________________________________
/// <summary>
/// Creates a new instance of a user-defined function.
/// </summary>
/// <param name="prototype"> The next object in the prototype chain. </param>
/// <param name="name"> The name of the function. </param>
/// <param name="argumentsText"> A comma-separated list of arguments. </param>
/// <param name="bodyText"> The source code for the body of the function. </param>
/// <remarks> This is used by <c>new Function()</c>. </remarks>
internal UserDefinedFunction(ObjectInstance prototype, string name, string argumentsText, string bodyText)
: base(prototype)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (argumentsText == null)
{
throw new ArgumentNullException(nameof(argumentsText));
}
if (bodyText == null)
{
throw new ArgumentNullException(nameof(bodyText));
}
// Set up a new function scope.
this.ParentScope = RuntimeScope.CreateGlobalScope(Engine);
// Compile the code.
var context = new FunctionMethodGenerator(name, argumentsText, bodyText, new CompilerOptions()
{
#if ENABLE_DEBUGGING
EnableDebugging = this.Engine.EnableDebugging,
#endif
ForceStrictMode = this.Engine.ForceStrictMode,
EnableILAnalysis = this.Engine.EnableILAnalysis,
CompatibilityMode = this.Engine.CompatibilityMode
});
try
{
context.GenerateCode();
}
catch (SyntaxErrorException ex)
{
throw new JavaScriptException(ErrorType.SyntaxError, ex.Message, ex.LineNumber, ex.SourcePath);
}
this.ArgumentsText = argumentsText;
this.ArgumentNames = context.Arguments.Select(a => a.Name).ToList();
this.BodyText = bodyText;
this.generatedMethod = context.GeneratedMethod;
this.body = (FunctionDelegate)this.generatedMethod.GeneratedDelegate;
this.StrictMode = context.StrictMode;
InitProperties(name, context.Arguments.Count);
}
/// <summary>
/// Executes the compiled eval code.
/// </summary>
/// <param name="engine"> The script engine to use to execute the script. </param>
/// <returns> The result of the eval. </returns>
/// <exception cref="ArgumentNullException"> <paramref name="engine"/> is a <c>null</c> reference. </exception>
public object Evaluate(ScriptEngine engine)
{
try
{
object result = methodGen.Execute(engine, RuntimeScope.CreateGlobalScope(engine), engine.Global);
// Execute any pending callbacks.
engine.ExecutePostExecuteSteps();
return(TypeUtilities.NormalizeValue(result));
}
finally
{
// Ensure the list of post-execute steps is cleared if there is an exception.
engine.ClearPostExecuteSteps();
}
}
