public override void CheckSemantic(MoveInfo treeInfo, ScriptInfo scriptInfo, CheckingInfo checkingInfo)
{
IElement baseVar = this.GetChildren()[0];
string baseVarName = baseVar.ToString();
foreach (string tStr in ScriptManager.GlobalVariables)
{
if (baseVarName.EqualCode(tStr))
{
return;
}
}
if (checkingInfo.CurrentFunc != null) // inside func
{
LocalVarInfo tryVarInfo = checkingInfo.CurrentFunc.LocalVars.Find(a => a.Name.EqualCode(baseVarName));
if (tryVarInfo != null && this.CharIndex >= tryVarInfo.StartIndex)
{
// check "var = var;" | "var[5] = var[5] + 10"; | etc.
if (tryVarInfo.VarNameDef == null) // it is reference
{
tryVarInfo.RefCount++;
return;
}
else if (tryVarInfo.VarNameDef == this) // it is definition
{
return;
}
else if (tryVarInfo.AssignDef == null) // it is reference
{
tryVarInfo.RefCount++;
return;
}
else if (!treeInfo.IsInBlock(tryVarInfo.AssignDef)) // it is reference
{
tryVarInfo.RefCount++;
return;
}
}
}
ConstInfo constInfo = scriptInfo.FindLocalConst(baseVarName);
if (constInfo == null)
{
constInfo = scriptInfo.FindIncludesConst(baseVarName);
if (constInfo == null)
{
constInfo = scriptInfo.FindGlobalsConst(baseVarName);
if (constInfo == null)
{
scriptInfo.SF.Errors.Add(
new SemanticError("Unknown variable/constant '" + baseVarName + "'",
treeInfo.GetErrorInfo(treeInfo.Current)));
return;
}
}
if (constInfo.Access == MemberAccess.Private)
{
scriptInfo.SF.Errors.Add(
new SemanticError("Cannot access member '" + baseVarName + "'",
treeInfo.GetErrorInfo(treeInfo.Current)));
}
}
ToConstant(treeInfo, constInfo);
scriptInfo.References.Add(new ConstRefInfo(scriptInfo.SF, constInfo,
this.CharIndex, this.CharLength, checkingInfo.SC.SourceCode.Substring(this.CharIndex, this.CharLength)));
}