public JsValue EvaluateFunctionExpression(FunctionExpression functionExpression)
{
var funcEnv = LexicalEnvironment.NewDeclarativeEnvironment(_engine, _engine.ExecutionContext.LexicalEnvironment);
var envRec = (DeclarativeEnvironmentRecord)funcEnv.Record;
if (functionExpression.Id != null && !String.IsNullOrEmpty(functionExpression.Id.Name))
{
envRec.CreateMutableBinding(functionExpression.Id.Name);
}
var closure = new ScriptFunctionInstance(
_engine,
functionExpression,
funcEnv,
functionExpression.Strict
);
if (functionExpression.Id != null && !String.IsNullOrEmpty(functionExpression.Id.Name))
{
envRec.InitializeImmutableBinding(functionExpression.Id.Name, closure);
}
return closure;
}
private void EmitFunctionExpression(FunctionExpression e)
{
if (null == e.Body)
{
Emit(e.Expression);
}
else
{
TranslateFunctionHeader(null, e.Parameters);
Emit(e.Body);
}
}
