xtc.parser
Class MetaData

java.lang.Object
  xtc.parser.MetaData

public class MetaData
extends java.lang.Object

The meta-data for a production necessary for code generation.

Version:

$Revision: 1.25 $

Author:

Robert Grimm

Field Summary

java.util.List<Type>	boundRepetitions The structure of bound repetitions for this production.
java.util.List<Type>	options The structure of options for this production.
java.util.List<java.lang.Boolean>	repetitions The structure of repetitions for this production.
boolean	requiresBaseIndex Flag for whether the production requires a base index variable.
boolean	requiresChar Flag for whether the production requires a character variable.
boolean	requiresIndex Flag for whether the production requires an index variable.
boolean	requiresPredIndex Flag for whether the production requires a predicate index variable.
boolean	requiresPredMatch Flag for whether the production requires a predicate matched variable.
boolean	requiresPredResult Flag for whether the production requires a predicate result variable.
boolean	requiresResult Flag for whether the production requires a result variable.
int	selfCount The number of times this production references itself.
int	usageCount The number of times this production is referenced within the grammar.

Constructor Summary

MetaData()
Create a new meta-data record.

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

requiresChar

public boolean requiresChar

Flag for whether the production requires a character variable.

requiresIndex

public boolean requiresIndex

Flag for whether the production requires an index variable.

requiresResult

public boolean requiresResult

Flag for whether the production requires a result variable.

requiresPredIndex

public boolean requiresPredIndex

Flag for whether the production requires a predicate index variable.

requiresPredResult

public boolean requiresPredResult

Flag for whether the production requires a predicate result variable.

requiresPredMatch

public boolean requiresPredMatch

Flag for whether the production requires a predicate matched variable.

requiresBaseIndex

public boolean requiresBaseIndex

Flag for whether the production requires a base index variable.

usageCount

public int usageCount

The number of times this production is referenced within the grammar.

selfCount

public int selfCount

The number of times this production references itself.

repetitions

public java.util.List<java.lang.Boolean> repetitions

The structure of repetitions for this production. The length of the list indicates the maximum depth of nested repetitions. Each list element is a Boolean, which is true if any of the repetitions at that level has its Repetition.once flag set.

boundRepetitions

public java.util.List<Type> boundRepetitions

The structure of bound repetitions for this production. The length of the list indicates the maximum depth of nested repetitions. Each list element is the (unified) type of all lists at that level; it is null if none of the repetitions has a bound semantic value.

options

public java.util.List<Type> options

The structure of options for this production. The length of the list indicates the maximum depth of nested options. Each list element is the (unified) type of all bound options at that level; it is null if none of the options has a bound semantic value.

Constructor Detail

MetaData

public MetaData()

Create a new meta-data record.

Note that the constructor allocates a new list for the repetitions, boundRepetitions and options fields.