org.omegahat.Environment.Parser.Parse
Class NumberExpression

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

All Implemented Interfaces:

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

Direct Known Subclasses:

BinaryExpression, UnaryExpression

public class NumberExpression

extends BasicExpression

Class from which others are derived to provide capabilities for handling objects as numbers and converting them to appropriate types and back for computations.

See Also:

Serialized Form

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

NumberExpression()

Method Summary

boolean	asBoolean(java.lang.Object o)
int	asInt(java.lang.Object val)
java.lang.Integer	asInteger(java.lang.Object val)
static double	asNumber(java.lang.Object o)
boolean	isNumber(java.lang.Object o)
java.lang.Integer	toInteger(double num)
java.lang.Integer	toInteger(int num)
java.lang.Object	toNumber(double val, java.lang.Object[] src)

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

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

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, getFirstChild, getNextSibling, removeChildren, setFirstChild, setNextSibling, setVerboseStringConversion, toStringList, toStringTree

Methods inherited from class java.lang.Object

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

Constructor Detail

NumberExpression

public NumberExpression()

Method Detail

asNumber

public static double asNumber(java.lang.Object o)

isNumber

public boolean isNumber(java.lang.Object o)

toNumber

public java.lang.Object toNumber(double val,
                                 java.lang.Object[] src)

toInteger

public java.lang.Integer toInteger(double num)

toInteger

public java.lang.Integer toInteger(int num)

asInteger

public java.lang.Integer asInteger(java.lang.Object val)

asInt

public int asInt(java.lang.Object val)

asBoolean

public boolean asBoolean(java.lang.Object o)