void CheckAmbiguousVariableNames(Method node)
{
if (null == node.DeclaringType || null == node.DeclaringType.Entity)
{
return;
}
InternalClass klass = node.DeclaringType.Entity as InternalClass;
if (null == klass || null == klass.BaseType)
{
return;
}
if (Parameters.DisabledWarnings.Contains("BCW0025"))
{
return;
}
klass = klass.BaseType as InternalClass;
foreach (Local local in node.Locals)
{
if (null == local.Entity || ((InternalLocal)local.Entity).IsExplicit)
{
continue;
}
//check in the cache if variable is safe (the frequent case)
if (_safeVars.Contains(local.Name))
{
return;
}
//navigate down the base types
bool safe = true;
while (null != klass)
{
Field field = klass.TypeDefinition.Members[local.Name] as Field;
if (null != field && field.IsPrivate)
{
safe = false;
Warnings.Add(CompilerWarningFactory.AmbiguousVariableName(local, local.Name, klass.Name));
break; //no need to go further down
}
klass = klass.BaseType as InternalClass;
}
if (safe) //this var is safe for all methods of the current type
{
_safeVars.Add(local.Name);
}
}
}
