public override void VisitForeachVar(ForeachVar x)
{
if (x != null)
{
_foreachVarCount++;
}
base.VisitForeachVar(x);
}
public override void VisitForeachVar(ForeachVar x)
{
if (x.Alias)
{
ConsumeToken(Tokens.T_AMP, "&", x.Span.Start);
}
VisitElement(x.Target);
}
public PhpTypeCode Emit(ForeachVar /*!*/ node, CodeGenerator codeGenerator)
{
var varuse = node.Variable;
if (varuse != null)
{
return(varuse.Emit(codeGenerator));
}
else
{
// other epxressions are handled in EmitAssign only
return(PhpTypeCode.Unknown); // ignored
}
}
public void Analyze(ForeachVar /*!*/ node, Analyzer analyzer)
{
ExInfoFromParent info = new ExInfoFromParent(node);
if (node.Alias)
{
info.Access = AccessType.WriteRef;
}
else
{
info.Access = AccessType.Write;
}
// retval not needed
node.Expression.Analyze(analyzer, info);
}
public PhpTypeCode EmitAssign(ForeachVar /*!*/ node, CodeGenerator codeGenerator)
{
// Object (or PhpReference) is on top of evaluation stack
var varuse = node.Variable;
if (varuse != null)
{
return(VariableUseHelper.EmitAssign(varuse, codeGenerator));
}
else
{
var listex = node.List;
if (listex != null)
{
return(listex.NodeCompiler <ListExCompiler>().EmitAssign(listex, codeGenerator));
}
else
{
throw new InvalidOperationException();
}
}
}
private ForeachStmt /*!*/ CreateForeachStmt(Position pos, Expression /*!*/ enumeree, ForeachVar /*!*/ var1,
Position pos1, ForeachVar var2, Statement /*!*/ body)
{
ForeachVar key, value;
if (var2 != null)
{
key = var1;
value = var2;
if (key.Alias)
{
errors.Add(Errors.KeyAlias, SourceUnit, pos1);
key.Alias = false;
}
}
else
{
key = null;
value = var1;
}
return(new ForeachStmt(pos, enumeree, key, value, body));
}
/// <summary>
/// Visit foreach variable used for value and key.
/// </summary>
/// <param name="x"></param>
virtual public void VisitForeachVar(ForeachVar x)
{
VisitElement(x?.Target);
}
public override LangElement Foreach(Span span, LangElement enumeree, ForeachVar keyOpt, ForeachVar value, LangElement body) => CountLE(base.Foreach(span, enumeree, keyOpt, value, body));
ForeachVar CountFV(ForeachVar i)
{
_foreachVarCount++;
return(i);
}
public static PhpTypeCode EmitAssign(this ForeachVar /*!*/ node, CodeGenerator codeGenerator)
{
return(node.NodeCompiler <IForeachVarCompiler>().EmitAssign(node, codeGenerator));
}
public static void Analyze(this ForeachVar /*!*/ node, Analyzer analyzer)
{
node.NodeCompiler <IForeachVarCompiler>().Analyze(node, analyzer);
}
