/// <summary>Searches for a named MIB symbol. This method may search outside
/// the normal (or strict) scope, thereby allowing a form of
/// relaxed search. Note that the results from the normal and
/// expanded search may not be identical, due to the context
/// chaining and the same symbol name appearing in various
/// contexts.
/// NOTE: This is an internal method that should
/// only be called by the MIB loader.
/// </summary>
/// <param name="name">The symbol name</param>
/// <param name="expanded">The expanded scope flag</param>
/// <returns>The MIB symbol, or null if the symbol is not found</returns>
public MibSymbol FindSymbol(string name, bool expanded)
{
if (this.context is ValueReference valref)
{
this.context = valref.Symbol;
}
if (this.context is MibTypeSymbol mibTpSymb)
{
this.context = mibTpSymb.Type;
}
if (this.context is MibValueSymbol mibValSymb)
{
this.context = mibValSymb.Type;
}
if (this.context is SnmpObjectType snmpObjTp)
{
this.context = snmpObjTp.Syntax;
}
if (this.context is TypeReference tpRef)
{
this.context = tpRef.Symbol;
return(this.FindSymbol(name, expanded));
}
IMibContext ctx = this.context as IMibContext;
return(ctx?.FindSymbol(name, expanded));
}
/// <summary>
/// Initializes a new instance of the <see cref="TypeReference"/> class.
/// </summary>
/// <param name="location">The reference location</param>
/// <param name="context">The reference context</param>
/// <param name="name">The reference name</param>
/// <param name="constraint">The additional type constraint</param>
public TypeReference(
FileLocation location,
IMibContext context,
string name,
IConstraint constraint)
: this(location, context, name)
{
this.constraint = constraint;
}
/// <summary>
/// Initializes a new instance of the <see cref="TypeReference"/> class.
/// </summary>
/// <param name="location">The reference location</param>
/// <param name="context">The reference context</param>
/// <param name="name">The reference name</param>
/// <param name="values">The additional defined symbols</param>
public TypeReference(
FileLocation location,
IMibContext context,
string name,
IList <MibValueSymbol> values)
: this(location, context, name)
{
this.values = values;
}
/// <summary>
/// Initializes a new instance of the <see cref="ValueReference"/> class.
/// </summary>
/// <param name="location">The reference file location</param>
/// <param name="context">The reference context</param>
/// <param name="name">The reference name</param>
public ValueReference(
FileLocation location,
IMibContext context,
string name)
: base("ReferenceToValue(" + name + ")")
{
this.location = location;
this.context = context;
this.name = name;
}
/// <summary>
/// Initializes a new instance of the <see cref="TypeReference"/> class.
/// </summary>
/// <param name="location">The reference location</param>
/// <param name="context">The reference context</param>
/// <param name="name">The reference name</param>
public TypeReference(
FileLocation location,
IMibContext context,
string name)
: base("ReferenceToType(" + name + ")", false)
{
this.location = location;
this.context = context;
this.Name = name;
}
/// <summary>
/// Searches for a named MIB symbol. This method may search outside
/// the normal (or strict) scope, thereby allowing a form of
/// relaxed search. Note that the results from the normal and
/// expanded search may not be identical, due to the context
/// chaining and the same symbol name appearing in various
/// contexts. This method checks the referenced type for a
/// MibContext implementation.
/// NOTE: This is an internal method that should
/// only be called by the MIB loader.
/// </summary>
/// <param name="name">The symbol name</param>
/// <param name="expanded">The expanded scope flag</param>
/// <returns>The MIB symbol, or null if none was found</returns>
public MibSymbol FindSymbol(string name, bool expanded)
{
IMibContext mc = this.type as IMibContext;
if (mc == null)
{
return(null);
}
return(mc.FindSymbol(name, expanded));
}
/// <summary>Searches for a named MIB symbol. This method may search outside
/// the normal (or strict) scope, thereby allowing a form of
/// relaxed search. Note that the results from the normal and
/// expanded search may not be identical, due to the context
/// chaining and the same symbol name appearing in various
/// contexts.
/// NOTE: This is an internal method that should
/// only be called by the MIB loader.
/// </summary>
/// <param name="name">The symbol name</param>
/// <param name="expanded">The expanded scope flag</param>
/// <returns>The MIB symbol, or null if the symbol is not found</returns>
public MibSymbol FindSymbol(string name, bool expanded)
{
IMibContext ctx = null;
if (this.context is ValueReference)
{
this.context = ((ValueReference)this.context).Symbol;
}
if (this.context is MibTypeSymbol)
{
this.context = ((MibTypeSymbol)this.context).Type;
}
if (this.context is MibValueSymbol)
{
this.context = ((MibValueSymbol)this.context).Type;
}
if (this.context is SnmpObjectType)
{
this.context = ((SnmpObjectType)this.context).Syntax;
}
if (this.context is TypeReference)
{
this.context = ((TypeReference)this.context).Symbol;
return(this.FindSymbol(name, expanded));
}
if (this.context is IMibContext)
{
ctx = (IMibContext)this.context;
}
return((ctx == null) ? null : ctx.FindSymbol(name, expanded));
}
/// <summary>Initializes a new instance of the <see cref="CompoundContext"/> class.</summary>
/// <param name="first">The primary MIB context</param>
/// <param name="second">The secondary MIB context</param>
public CompoundContext(IMibContext first, IMibContext second)
{
this.first = first;
this.second = second;
}
