/// <summary>
/// http://www.ecma-international.org/ecma-262/5.1/#sec-12.6.1
/// </summary>
/// <param name="doWhileStatement"></param>
/// <returns></returns>
public Completion ExecuteDoWhileStatement(DoWhileStatement doWhileStatement)
{
JsValue v = Undefined.Instance;
bool iterating;
do
{
var stmt = ExecuteStatement(doWhileStatement.Body);
if (stmt.Value != null)
{
v = stmt.Value;
}
if (stmt.Type != Completion.Continue || stmt.Identifier != doWhileStatement.LabelSet)
{
if (stmt.Type == Completion.Break && (stmt.Identifier == null || stmt.Identifier == doWhileStatement.LabelSet))
{
return new Completion(Completion.Normal, v, null);
}
if (stmt.Type != Completion.Normal)
{
return stmt;
}
}
var exprRef = _engine.EvaluateExpression(doWhileStatement.Test);
iterating = TypeConverter.ToBoolean(_engine.GetValue(exprRef));
} while (iterating);
return new Completion(Completion.Normal, v, null);
}
private void EmitDoWhileStatement(DoWhileStatement s)
{
Write("do ");
Emit(s.Body);
Write("while(");
Emit(s.Test);
Write(");");
}