/interpreter/tags/at2-build060407/src/edu/vub/at/objects/ATNumeric.java

 1/**
 2 * AmbientTalk/2 Project
 3 * ATNumeric.java created on 18-aug-2006 at 11:00:01
 4 * (c) Programming Technology Lab, 2006 - 2007
 5 * Authors: Tom Van Cutsem & Stijn Mostinckx
 6 * 
 7 * Permission is hereby granted, free of charge, to any person
 8 * obtaining a copy of this software and associated documentation
 9 * files (the "Software"), to deal in the Software without
10 * restriction, including without limitation the rights to use,
11 * copy, modify, merge, publish, distribute, sublicense, and/or
12 * sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following
14 * conditions:
15 *
16 * The above copyright notice and this permission notice shall be
17 * included in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
21 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
23 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
24 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
27 */
28package edu.vub.at.objects;
29
30import edu.vub.at.exceptions.InterpreterException;
31import edu.vub.at.objects.grammar.ATExpression;
32
33/**
34 * The common interface to both numbers and fractions.
35 * This interface extends ATExpression as a number or fraction can also be output by the parser as a literal.
36 * 
37 * @author tvc
38 */
39public interface ATNumeric extends ATExpression {
40
41	// base-level interface to both numbers and fractions
42	
43	public ATFraction base_cos() throws InterpreterException;
44	public ATFraction base_sin() throws InterpreterException;
45	public ATFraction base_tan() throws InterpreterException;
46	
47	public ATFraction base_log() throws InterpreterException;
48	public ATFraction base_sqrt() throws InterpreterException;
49	public ATFraction base_expt(ATNumeric pow) throws InterpreterException;	
50	
51	// addition +
52	public ATNumeric base__oppls_(ATNumeric other) throws InterpreterException;
53	public ATNumeric base_addNumber(ATNumber other) throws InterpreterException;
54	public ATNumeric base_addFraction(ATFraction other) throws InterpreterException;
55	
56	// subtraction -
57	public ATNumeric base__opmns_(ATNumeric other) throws InterpreterException;
58	public ATNumeric base_subtractNumber(ATNumber other) throws InterpreterException;
59	public ATNumeric base_subtractFraction(ATFraction other) throws InterpreterException;
60	
61	// multiplication *
62	public ATNumeric base__optms_(ATNumeric other) throws InterpreterException;
63	public ATNumeric base_timesNumber(ATNumber other) throws InterpreterException;
64	public ATNumeric base_timesFraction(ATFraction other) throws InterpreterException;
65	
66	// division /
67	public ATNumeric base__opdiv_(ATNumeric other) throws InterpreterException;
68	public ATNumeric base_divideNumber(ATNumber other) throws InterpreterException;
69	public ATNumeric base_divideFraction(ATFraction other) throws InterpreterException;
70	
71	// comparison: generalized equality <=>
72	public ATNumeric base__opltx__opeql__opgtx_(ATNumeric other) throws InterpreterException;
73	public ATNumeric base_gequalsNumber(ATNumber other) throws InterpreterException;
74	public ATNumeric base_gequalsFraction(ATFraction other) throws InterpreterException;
75	
76	// Comparable mixin based on <=>
77	
78	public ATBoolean base__opltx_(ATNumeric other) throws InterpreterException; // <
79	public ATBoolean base__opgtx_(ATNumeric other) throws InterpreterException; // >
80	public ATBoolean base__opltx__opeql_(ATNumeric other) throws InterpreterException; // <=
81	public ATBoolean base__opgtx__opeql_(ATNumeric other) throws InterpreterException; // >=
82	public ATBoolean base__opeql_(ATNumeric other) throws InterpreterException; // =
83	public ATBoolean base__opnot__opeql_(ATNumeric other) throws InterpreterException; // !=
84}