protected override void visitUseClause(UseClause useClause)
{
writer.Append(KeywordEnum.USE.ToString()).Append(' ');
writer.AppendStrings(useClause.getDeclarations(), ", ");
writer.Append(';').NewLine();
}
/// <summary>
/// Проверка оператора use (поиск соответствующего пакета или элемента пакета)
/// </summary>
/// <param name="tree"></param>
/// <param name="useClause"></param>
public bool CheckUseClause(ParserRuleContext tree, UseClause useClause)
{
List <string> declarations = useClause.getDeclarations();
foreach (string declaration in declarations)
{
string[] elems = declaration.Split(new char[] { '.' }, StringSplitOptions.RemoveEmptyEntries);
if ((elems != null) && (elems.Length == 3))
{
//Ищем библиотеку
string libraryName = elems[0];
IList <LibraryDeclarativeRegion> libraries = rootScope.Libraries;
foreach (LibraryDeclarativeRegion library in libraries)
{
if ((library != null) && (library.Identifier.EqualsIdentifier(libraryName)))
{
//Нашли необходимую библиотеку
//Ищем пакет
string packageName = elems[1];
foreach (VhdlFile file in library.Files)
{
foreach (LibraryUnit unit in file.Elements)
{
if (unit is PackageDeclaration)
{
PackageDeclaration packege = unit as PackageDeclaration;
if (packege.Identifier.EqualsIdentifier(packageName))
{
//Нашли необходимый пакет
//Ищем нужный элемент
string elemName = elems[2];
if (elemName.EqualsIdentifier("all"))
{
if (useClause.LinkedElements.Contains(packege) == false)
{
useClause.LinkedElements.Add(packege);
}
return(true);
}
object o = packege.Scope.resolveLocal(elemName);
if ((o != null) && (o is INamedEntity))
{
INamedEntity el = o as INamedEntity;
if (useClause.LinkedElements.Contains(el) == false)
{
useClause.LinkedElements.Add(el);
}
return(true);
}
else
{
throw new VHDL.ParseError.vhdlUnknownUseClauseItemException(tree, FileName, elemName);
return(false);
}
}
}
}
}
throw new VHDL.ParseError.vhdlUnknownUseClausePrimaryUnitException(tree, FileName, packageName);
return(false);
}
}
throw new VHDL.ParseError.vhdlUnknownLibraryException(tree, FileName, libraryName);
return(false);
}
else
{
throw new VHDL.ParseError.vhdlIllegalUseClauseException(tree, FileName);
}
}
return(true);
}