1 // Copyright 2000-2005 the Contributors, as shown in the revision logs.
2 // Licensed under the Apache Public Source License 2.0 ("the License").
3 // You may not use this file except in compliance with the License.
7 /** The JavaScript Math object */
8 class JSMath extends JS {
9 private static final JS E = JS.N(java.lang.Math.E);
10 private static final JS PI = JS.N(java.lang.Math.PI);
11 private static final JS LN10 = JS.N(java.lang.Math.log(10));
12 private static final JS LN2 = JS.N(java.lang.Math.log(2));
13 private static final JS LOG10E = JS.N(1/java.lang.Math.log(10));
14 private static final JS LOG2E = JS.N(1/java.lang.Math.log(2));
15 private static final JS SQRT1_2 = JS.N(1/java.lang.Math.sqrt(2));
16 private static final JS SQRT2 = JS.N(java.lang.Math.sqrt(2));
18 public JS callMethod(JS method, JS a0, JS a1, JS a2, JS[] rest, int nargs) throws JSExn {
21 //#switch(JS.toString(method))
22 case "random": return JS.N(java.lang.Math.random());
27 //#switch(JS.toString(method))
28 case "ceil": return JS.N((long)java.lang.Math.ceil(toDouble(a0)));
29 case "floor": return JS.N((long)java.lang.Math.floor(toDouble(a0)));
30 case "round": return JS.N((long)java.lang.Math.round(toDouble(a0)));
31 case "abs": return JS.N(java.lang.Math.abs(toDouble(a0)));
32 case "sin": return JS.N(java.lang.Math.sin(toDouble(a0)));
33 case "cos": return JS.N(java.lang.Math.cos(toDouble(a0)));
34 case "tan": return JS.N(java.lang.Math.tan(toDouble(a0)));
35 case "asin": return JS.N(java.lang.Math.asin(toDouble(a0)));
36 case "acos": return JS.N(java.lang.Math.acos(toDouble(a0)));
37 case "atan": return JS.N(java.lang.Math.atan(toDouble(a0)));
38 case "sqrt": return JS.N(java.lang.Math.sqrt(toDouble(a0)));
39 case "exp": return JS.N(java.lang.Math.exp(toDouble(a0)));
40 case "log": return JS.N(java.lang.Math.log(toDouble(a0)));
45 //#switch(JS.toString(method))
46 case "min": return JS.N(java.lang.Math.min(toDouble(a0), toDouble(a1)));
47 case "max": return JS.N(java.lang.Math.max(toDouble(a0), toDouble(a1)));
48 case "pow": return JS.N(java.lang.Math.pow(toDouble(a0), toDouble(a1)));
49 case "atan2": return JS.N(java.lang.Math.atan2(toDouble(a0), toDouble(a1)));
54 return super.callMethod(method, a0, a1, a2, rest, nargs);
57 public JS get(JS key) throws JSExn {
58 //#switch(JS.toString(key))
60 case "LN10": return LN10;
61 case "LN2": return LN2;
62 case "LOG10E": return LOG10E;
63 case "LOG2E": return LOG2E;
65 case "SQRT1_2": return SQRT1_2;
66 case "SQRT2": return SQRT2;
67 case "ceil": return METHOD;
68 case "floor": return METHOD;
69 case "round": return METHOD;
70 case "min": return METHOD;
71 case "max": return METHOD;
72 case "pow": return METHOD;
73 case "atan2": return METHOD;
74 case "abs": return METHOD;
75 case "sin": return METHOD;
76 case "cos": return METHOD;
77 case "tan": return METHOD;
78 case "asin": return METHOD;
79 case "acos": return METHOD;
80 case "atan": return METHOD;
81 case "sqrt": return METHOD;
82 case "exp": return METHOD;
83 case "log": return METHOD;
84 case "random": return METHOD;
86 return super.get(key);