org.omegahat.Environment.Parser.Parse
Class SwitchCase

java.lang.Object
  |
  +--antlr.BaseAST
        |
        +--antlr.CommonAST
              |
              +--org.omegahat.Environment.Parser.Parse.BasicExpression
                    |
                    +--org.omegahat.Environment.Parser.Parse.List
                          |
                          +--org.omegahat.Environment.Parser.Parse.SwitchCase

All Implemented Interfaces:

antlr.collections.AST, java.lang.Cloneable, Evaluable, ExpressionInt, OmegaTokenTypes, java.lang.Runnable, java.io.Serializable, Subsettable, TreeNodeInt

public class SwitchCase

extends List

implements ExpressionInt

This class represents one or more case statements within a switch construct. It collects the expressions (or values) between the between the case keyword and the colon of declaration and stores them as elements of a List. When are two or more \JKeyword{case} elements stored together? When only the last has a non-trivial action statement. In other words, when a case statement has no code and trivially ``falls-through'' to the next \JKeyword{statement}, it is logically grouped with that next \JKeyword{case} element and so on until we arrive at one that has a non-empty action statement list. This object stores these related expressions and the statement list of the final one that is to be evaluated if the value of the expression controlling the \JKeyword{switch} matches any of the expression values in this \OmegaClass{List}.

See Also:

Serialized Form

Field Summary

protected java.lang.Object	body
static java.lang.Integer	DEFAULT_CASE
protected boolean	DefaultCase

Fields inherited from class org.omegahat.Environment.Parser.Parse.List

elements, separator

Fields inherited from class org.omegahat.Environment.Parser.Parse.BasicExpression

children, comments, isActive, parent, POST, PRE

Fields inherited from class antlr.BaseAST

down, right

Fields inherited from interface org.omegahat.Environment.Parser.AntlrParser.OmegaTokenTypes

ABSTRACT, ARG_LIST, ARRAY_DECLARATOR, ARRAY_INIT, ASSIGN, BAND, BAND_ASSIGN, BLOCK, BNOT, BOR, BOR_ASSIGN, BREAK, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN, CHAR_LITERAL, CLASS_DEF, COLON, COMMA, CONTINUE, CTOR_DEF, DEC, DIV, DIV_ASSIGN, DOT, DOTS, EAGER, ELEMENT_OP, EOF, EQUAL, ESC, EXPONENT, EXPONENT_OP, EXPR, EXTENDS_CLAUSE, FINAL, FLOAT_SUFFIX, FUNCTION, GE, GT, HEX_DIGIT, IDENT, IMPLEMENTS_CLAUSE, IMPORT, INC, INDEX_OP, INSTANCE_INIT, INSTANCEOF, INTERFACE_DEF, LABELED_STAT, LAND, LAZY, LBRACK, LCURLY, LE, LITERAL_abstract, LITERAL_boolean, LITERAL_break, LITERAL_byte, LITERAL_case, LITERAL_catch, LITERAL_char, LITERAL_class, LITERAL_const, LITERAL_continue, LITERAL_default, LITERAL_do, LITERAL_double, LITERAL_eager, LITERAL_else, LITERAL_extends, LITERAL_false, LITERAL_final, LITERAL_finally, LITERAL_float, LITERAL_for, LITERAL_function, LITERAL_global, LITERAL_if, LITERAL_implements, LITERAL_import, LITERAL_in, LITERAL_instanceof, LITERAL_int, LITERAL_interface, LITERAL_lazy, LITERAL_long, LITERAL_method, LITERAL_native, LITERAL_new, LITERAL_null, LITERAL_private, LITERAL_protected, LITERAL_public, LITERAL_return, LITERAL_short, LITERAL_static, LITERAL_super, LITERAL_switch, LITERAL_synchronized, LITERAL_this, LITERAL_threadsafe, LITERAL_throw, LITERAL_throws, LITERAL_transient, LITERAL_true, LITERAL_try, LITERAL_void, LITERAL_while, LNOT, LOR, LPAREN, LT, METHOD, METHOD_CALL, METHOD_DEF, MINUS, MINUS_ASSIGN, MISSING_ARG, ML_COMMENT, MOD, MOD_ASSIGN, MODIFIERS, NOT_EQUAL, NULL_TREE_LOOKAHEAD, NUM_FLOAT, NUM_INT, NUM_LONG, OBJBLOCK, PACKAGE_DEF, PARAMETER_DEF, PARAMETERS, PLUS, PLUS_ASSIGN, POST_DEC, POST_INC, QUESTION, RBRACK, RCURLY, RETURN, RPAREN, SEMI, SEQUENCE_OP, SL, SL_ASSIGN, SL_COMMENT, SLIST, SR, SR_ASSIGN, STAR, STAR_ASSIGN, STATIC_INIT, STRING_LITERAL, SYNCHRONIZED, THROW, TRANSIENT, TYPE, TYPECAST, UNARY_MINUS, UNARY_PLUS, VARIABLE_DEF, VOCAB, WS

Constructor Summary

SwitchCase()

SwitchCase(java.lang.Object lab)

Method Summary

void	addElement(java.lang.Object o)
java.lang.String	asString()
java.lang.Object	body()
java.lang.Object	body(java.lang.Object o)
java.lang.Object	evalBody(Evaluator evaluator)
antlr.collections.AST	getFirstChild()
boolean	isDefault()
boolean	isDefault(boolean val)
java.lang.String	separator()
java.lang.String	toString()

Methods inherited from class org.omegahat.Environment.Parser.Parse.List

addElements, addElements, addElements, addResult, asString, asString, clear, clone, contains, copyElements, elementAt, elements, elementToString, eval, eval, evalElement, evalElement, evalResult, getReferencedVariables, lastElement, parent, separator, setElementAt, size, size, subset, subset, subset, toArray, toString

Methods inherited from class org.omegahat.Environment.Parser.Parse.BasicExpression

addChild, addComment, apply, apply, apply, children, children, comment, comment, depth, error, eval, evalInit, evaluationFrame, evaluator, getReferencedVariables, getReferencedVariables, isActive, isActive, parent, postComment, postComment, preComment, preComment, render, replaceChild, resolve, run, setParent, setParent, setParent, setParent, showComments, showComments, substitute, substitute

Methods inherited from class antlr.CommonAST

getText, getType, initialize, initialize, initialize, setText, setType

Methods inherited from class antlr.BaseAST

addChild, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getNextSibling, removeChildren, setFirstChild, setNextSibling, setVerboseStringConversion, toStringList, toStringTree

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.omegahat.Environment.Parser.Parse.ExpressionInt

error, resolve, substitute

Methods inherited from interface org.omegahat.Environment.Parser.Parse.TreeNodeInt

addChild, children, depth, parent, parent, replaceChild

Methods inherited from interface org.omegahat.Environment.Language.Evaluable

eval, eval

Field Detail

DEFAULT_CASE

public static java.lang.Integer DEFAULT_CASE

body

protected java.lang.Object body

DefaultCase

protected boolean DefaultCase

Constructor Detail

SwitchCase

public SwitchCase(java.lang.Object lab)

SwitchCase

public SwitchCase()

Method Detail

body

public java.lang.Object body()

body

public java.lang.Object body(java.lang.Object o)

isDefault

public boolean isDefault()

isDefault

public boolean isDefault(boolean val)

evalBody

public java.lang.Object evalBody(Evaluator evaluator)
                          throws java.lang.Throwable

addElement

public void addElement(java.lang.Object o)

Overrides:

addElement in class List

toString

public java.lang.String toString()

Overrides:

toString in class List

asString

public java.lang.String asString()

Overrides:

asString in class List

separator

public java.lang.String separator()

Overrides:

separator in class List

getFirstChild

public antlr.collections.AST getFirstChild()

Overrides:

getFirstChild in class List