public override IElement CreateCopy()
{
ForEachStatement e = new ForEachStatement();
e.AddChildren(this.CopyChildren());
e._foreachKeyword = (Token)e.children[this.children.IndexOf(_foreachKeyword)];
e._foreachGroup = (ParenthesesGroup)e.children[this.children.IndexOf(_foreachGroup)];
e._currentVar = (VarName)e._foreachGroup.GetChildren()[this._foreachGroup.GetChildren().IndexOf(_currentVar)];
e._array = (Expression)e._foreachGroup.GetChildren()[this._foreachGroup.GetChildren().IndexOf(_array)];
e._statement = (Statement)e.children[this.children.IndexOf(_statement)];
return(e);
}
public static bool Check(MoveInfo parentInfo, ParsingInfo parsingInfo, ScriptInfo scriptInfo)
{
IElement next = parentInfo.Find(SearchDirection.LeftToRight, SearchVisibility.Visible);
if (next == null)
{
return(false);
}
if (DevCode.Check(parentInfo, parsingInfo, scriptInfo) ||
PreProcessorRegion.Check(parentInfo, parsingInfo, scriptInfo))
{
return(true);
}
if (EmptyStatement.Check(parentInfo, parsingInfo, scriptInfo) ||
BlockStatement.Check(parentInfo, parsingInfo, scriptInfo)
)
{
return(true);
}
if (IfElseStatement.Check(parentInfo, parsingInfo, scriptInfo) ||
SwitchStatement.Check(parentInfo, parsingInfo, scriptInfo)
|| WhileStatement.Check(parentInfo, parsingInfo, scriptInfo) ||
DoWhileStatement.Check(parentInfo, parsingInfo, scriptInfo) ||
ForStatement.Check(parentInfo, parsingInfo, scriptInfo) ||
ForEachStatement.Check(parentInfo, parsingInfo, scriptInfo)
|| ReturnStatement.Check(parentInfo, parsingInfo, scriptInfo) ||
BreakStatement.Check(parentInfo, parsingInfo, scriptInfo) ||
ContinueStatement.Check(parentInfo, parsingInfo, scriptInfo)
|| WaitStatement.Check(parentInfo, parsingInfo, scriptInfo) ||
WaittillFrameEndStatement.Check(parentInfo, parsingInfo, scriptInfo)
)
{
return(true);
}
if (ExpressionStatement.Check(parentInfo, parsingInfo, scriptInfo, true)) // nikdy nevráti false?
{
return(true);
}
return(false);
}
private static void Parse(MoveInfo parentInfo, ParsingInfo parsingInfo, ScriptInfo scriptInfo)
{
ForEachStatement foreachStatement = new ForEachStatement();
MoveInfo moveInfo = new MoveInfo(parentInfo);
foreachStatement._foreachKeyword = (Token)moveInfo.Current;
// expression
IElement expGroupTry = moveInfo.FindNextBlack(SearchDirection.LeftToRight);
if (expGroupTry == null || !(expGroupTry is ParenthesesGroup))
{
throw new SyntaxException("Could not find foreach expression", parentInfo.GetErrorInfo());
}
ParenthesesGroup expGroup = (ParenthesesGroup)expGroupTry;
MoveInfo expGroupInfo = new MoveInfo(expGroup, SearchTree.ContentBlock, 0, parentInfo);
foreachStatement._foreachGroup = expGroup;
// var define
IElement tryVar = expGroupInfo.Find(SearchDirection.LeftToRight, SearchVisibility.Visible);
if (tryVar == null || !tryVar.IsTT(TokenType.Word))
{
throw new SyntaxException("Could not parse foreach var", parentInfo.GetErrorInfo());
}
VarName.Parse(expGroupInfo, parsingInfo, scriptInfo);
VarName varName = (VarName)expGroupInfo.Current;
LocalVarInfo localVar = parsingInfo.CurrentFunc.LocalVars.Find(a => a.Name.EqualCode(tryVar.ToString())); // there is already var with this name...
if (localVar == null)
{
parsingInfo.CurrentFunc.LocalVars.Add(new LocalVarInfo(scriptInfo.SF, tryVar.ToString(), tryVar.CharIndex, tryVar.CharLength, null, varName));
}
foreachStatement._currentVar = varName;
// in keyword
IElement tryIn = expGroupInfo.FindNextBlack(SearchDirection.LeftToRight);
if (tryIn == null || !tryIn.IsTT(TokenType.Word) || !tryIn.ToString().EqualCode("in"))
{
throw new SyntaxException("Could not find foreach 'in'", parentInfo.GetErrorInfo());
}
// array
IElement tryArray = expGroupInfo.FindNextBlack(SearchDirection.LeftToRight);
Expression tryArrayExp = Expression.Parse(expGroupInfo, parsingInfo, scriptInfo);
if (tryArrayExp == null || expGroupInfo.FindNextBlack(SearchDirection.LeftToRight) != null)
{
throw new SyntaxException("Could not parse foreach array", parentInfo.GetErrorInfo());
}
foreachStatement._array = tryArrayExp;
// statement
moveInfo.FindNextBlack(SearchDirection.LeftToRight);
if (!Statement.Check(moveInfo, parsingInfo, scriptInfo))
{
throw new SyntaxException("Could not parse foreach statement", parentInfo.GetErrorInfo());
}
foreachStatement._statement = (Statement)moveInfo.Current;
// build
int startIndex = parentInfo.CurrentIndex;
int length = (moveInfo.CurrentIndex + 1) - startIndex;
foreachStatement.AddChildren(parentInfo.CurrentElements.GetRange(startIndex, length));
parentInfo.Replace(length, foreachStatement);
}