程序包 org.antlr.analysis

类 ActionLabel

java.lang.Object

org.antlr.analysis.Label

org.antlr.analysis.ActionLabel

所有已实现的接口:

java.lang.Cloneable, java.lang.Comparable<Label>

public class ActionLabel
extends Label

字段概要

字段

修饰符和类型	字段	说明
GrammarAST	actionAST

从类继承的字段 org.antlr.analysis.Label

ACTION, DOWN, EOF, EOR_TOKEN_TYPE, EOT, EPSILON, EPSILON_STR, INVALID, label, labelSet, MAX_CHAR_VALUE, MIN_ATOM_VALUE, MIN_CHAR_VALUE, MIN_TOKEN_TYPE, NUM_FAUX_LABELS, SEMPRED, SET, UP

构造器概要

构造器

构造器	说明
ActionLabel(GrammarAST actionAST)

方法概要

修饰符和类型	方法	说明
boolean	isAction()
boolean	isEpsilon()
java.lang.String	toString()	Predicates are lists of AST nodes from the NFA created from the grammar, but the same predicate could be cut/paste into multiple places in the grammar.
java.lang.String	toString(Grammar g)

从类继承的方法 org.antlr.analysis.Label

add, clone, compareTo, equals, getAtom, getSemanticContext, getSet, hashCode, intersect, isAtom, isSemanticPredicate, isSet, matches, matches, matches, setSet

从类继承的方法 java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

字段详细资料

actionAST

public GrammarAST actionAST

构造器详细资料

ActionLabel

public ActionLabel(GrammarAST actionAST)

方法详细资料

isEpsilon

public boolean isEpsilon()

覆盖:

isEpsilon 在类中 Label

isAction

public boolean isAction()

覆盖:

isAction 在类中 Label

toString

public java.lang.String toString()

从类复制的说明: Label

Predicates are lists of AST nodes from the NFA created from the grammar, but the same predicate could be cut/paste into multiple places in the grammar. I must compare the text of all the predicates to truly answer whether {p1,p2} .equals {p1,p2}. Unfortunately, I cannot rely on the AST.equals() to work properly so I must do a brute force O(n^2) nested traversal of the Set doing a String compare. At this point, Labels are not compared for equals when they are predicates, but here's the code for future use.

覆盖:

toString 在类中 Label

toString

public java.lang.String toString(Grammar g)

覆盖:

toString 在类中 Label