public EmitContext(CompilationContext context, EmitContext parent, LambdaExpression lambda)
{
this.context = context;
this.parent = parent;
this.lambda = lambda;
this.hoisted = context.GetHoistedLocals(lambda);
this.method = new DynamicMethod("lambda_method", lambda.GetReturnType(), EmitContext.CreateParameterTypes(lambda.Parameters), typeof(ExecutionScope), true);
this.ig = this.method.GetILGenerator();
}