org.stekikun.dolmen.syntax

Enum PGrammars.Sort

java.lang.Object

java.lang.Enum<PGrammars.Sort>

org.stekikun.dolmen.syntax.PGrammars.Sort

All Implemented Interfaces:

Serializable, Comparable<PGrammars.Sort>

Enclosing class:

PGrammars

public static enum PGrammars.Sort
extends Enum<PGrammars.Sort>

This enumeration describes the various sorts which can characterize the kind of terminals or non-terminals (or more generally actual expressions) that can stand for some formal parameter in a parametric grammar.

Author:

Stéphane Lescuyer

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALL Sort which describes formals which can stand for any expression
ARGS Sort which describes formals which only stand for expressions that expect arguments, i.e. applications of non-terminals which were declared with arguments
ARGS_VALUED Sort which describes formals which only stand for valued expressions that expect arguments, i.e. applications of non-terminals which were declared with arguments and do not simply return void
NO_ARGS Sort which describes formals which only stand for expressions that do not expect arguments, i.e. tokens or applications of non-terminals which were declared without arguments
NO_ARGS_VALUED Sort which describes formals which only stand for valued expressions that expect arguments, i.e. applications of non-terminals which do not simply return void and were declared with arguments
VALUED Sort which describes formals which only stand for valued expressions, i.e. valued tokens or applications of non-terminals which do not simply return void and expect no arguments

Field Summary

Fields

Modifier and Type	Field and Description
PGrammars.Args	requiresArgs Whether this sort requires expressions that expect arguments or expressions that expect no arguments, or whether everything is allowed
boolean	requiresValue Whether this sort requires valued expressions

Method Summary

Modifier and Type	Method and Description
static PGrammars.Sort	valueOf(String name) Returns the enum constant of this type with the specified name.
static PGrammars.Sort[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

ALL

public static final PGrammars.Sort ALL

Sort which describes formals which can stand for any expression

NO_ARGS

public static final PGrammars.Sort NO_ARGS

Sort which describes formals which only stand for expressions that do not expect arguments, i.e. tokens or applications of non-terminals which were declared without arguments

VALUED

public static final PGrammars.Sort VALUED

Sort which describes formals which only stand for valued expressions, i.e. valued tokens or applications of non-terminals which do not simply return void and expect no arguments

ARGS

public static final PGrammars.Sort ARGS

Sort which describes formals which only stand for expressions that expect arguments, i.e. applications of non-terminals which were declared with arguments

NO_ARGS_VALUED

public static final PGrammars.Sort NO_ARGS_VALUED

Sort which describes formals which only stand for valued expressions that expect arguments, i.e. applications of non-terminals which do not simply return void and were declared with arguments

ARGS_VALUED

public static final PGrammars.Sort ARGS_VALUED

Sort which describes formals which only stand for valued expressions that expect arguments, i.e. applications of non-terminals which were declared with arguments and do not simply return void

Field Detail

requiresValue

public final boolean requiresValue

Whether this sort requires valued expressions

requiresArgs

public final PGrammars.Args requiresArgs

Whether this sort requires expressions that expect arguments or expressions that expect no arguments, or whether everything is allowed

Method Detail

values

public static PGrammars.Sort[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (PGrammars.Sort c : PGrammars.Sort.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static PGrammars.Sort valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null