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diff --git a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeMath.java b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeMath.java
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+/* -*- Mode: java; tab-width: 4; indent-tabs-mode: 1; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Rhino code, released
+ * May 6, 1999.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1997-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Norris Boyd
+ * Igor Bukanov
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+package org.mozilla.javascript;
+
+/**
+ * This class implements the Math native object.
+ * See ECMA 15.8.
+ * @author Norris Boyd
+ */
+
+final class NativeMath extends IdScriptableObject
+{
+ static final long serialVersionUID = -8838847185801131569L;
+
+ private static final Object MATH_TAG = new Object();
+
+ static void init(Scriptable scope, boolean sealed)
+ {
+ NativeMath obj = new NativeMath();
+ obj.activatePrototypeMap(MAX_ID);
+ obj.setPrototype(getObjectPrototype(scope));
+ obj.setParentScope(scope);
+ if (sealed) { obj.sealObject(); }
+ ScriptableObject.defineProperty(scope, "Math", obj,
+ ScriptableObject.DONTENUM);
+ }
+
+ private NativeMath()
+ {
+ }
+
+ public String getClassName() { return "Math"; }
+
+ protected void initPrototypeId(int id)
+ {
+ if (id <= LAST_METHOD_ID) {
+ String name;
+ int arity;
+ switch (id) {
+ case Id_toSource: arity = 0; name = "toSource"; break;
+ case Id_abs: arity = 1; name = "abs"; break;
+ case Id_acos: arity = 1; name = "acos"; break;
+ case Id_asin: arity = 1; name = "asin"; break;
+ case Id_atan: arity = 1; name = "atan"; break;
+ case Id_atan2: arity = 2; name = "atan2"; break;
+ case Id_ceil: arity = 1; name = "ceil"; break;
+ case Id_cos: arity = 1; name = "cos"; break;
+ case Id_exp: arity = 1; name = "exp"; break;
+ case Id_floor: arity = 1; name = "floor"; break;
+ case Id_log: arity = 1; name = "log"; break;
+ case Id_max: arity = 2; name = "max"; break;
+ case Id_min: arity = 2; name = "min"; break;
+ case Id_pow: arity = 2; name = "pow"; break;
+ case Id_random: arity = 0; name = "random"; break;
+ case Id_round: arity = 1; name = "round"; break;
+ case Id_sin: arity = 1; name = "sin"; break;
+ case Id_sqrt: arity = 1; name = "sqrt"; break;
+ case Id_tan: arity = 1; name = "tan"; break;
+ default: throw new IllegalStateException(String.valueOf(id));
+ }
+ initPrototypeMethod(MATH_TAG, id, name, arity);
+ } else {
+ String name;
+ double x;
+ switch (id) {
+ case Id_E: x = Math.E; name = "E"; break;
+ case Id_PI: x = Math.PI; name = "PI"; break;
+ case Id_LN10: x = 2.302585092994046; name = "LN10"; break;
+ case Id_LN2: x = 0.6931471805599453; name = "LN2"; break;
+ case Id_LOG2E: x = 1.4426950408889634; name = "LOG2E"; break;
+ case Id_LOG10E: x = 0.4342944819032518; name = "LOG10E"; break;
+ case Id_SQRT1_2: x = 0.7071067811865476; name = "SQRT1_2"; break;
+ case Id_SQRT2: x = 1.4142135623730951; name = "SQRT2"; break;
+ default: throw new IllegalStateException(String.valueOf(id));
+ }
+ initPrototypeValue(id, name, ScriptRuntime.wrapNumber(x),
+ DONTENUM | READONLY | PERMANENT);
+ }
+ }
+
+ public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope,
+ Scriptable thisObj, Object[] args)
+ {
+ if (!f.hasTag(MATH_TAG)) {
+ return super.execIdCall(f, cx, scope, thisObj, args);
+ }
+ double x;
+ int methodId = f.methodId();
+ switch (methodId) {
+ case Id_toSource:
+ return "Math";
+
+ case Id_abs:
+ x = ScriptRuntime.toNumber(args, 0);
+ // abs(-0.0) should be 0.0, but -0.0 < 0.0 == false
+ x = (x == 0.0) ? 0.0 : (x < 0.0) ? -x : x;
+ break;
+
+ case Id_acos:
+ case Id_asin:
+ x = ScriptRuntime.toNumber(args, 0);
+ if (x == x && -1.0 <= x && x <= 1.0) {
+ x = (methodId == Id_acos) ? Math.acos(x) : Math.asin(x);
+ } else {
+ x = Double.NaN;
+ }
+ break;
+
+ case Id_atan:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = Math.atan(x);
+ break;
+
+ case Id_atan2:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = Math.atan2(x, ScriptRuntime.toNumber(args, 1));
+ break;
+
+ case Id_ceil:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = Math.ceil(x);
+ break;
+
+ case Id_cos:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = (x == Double.POSITIVE_INFINITY
+ || x == Double.NEGATIVE_INFINITY)
+ ? Double.NaN : Math.cos(x);
+ break;
+
+ case Id_exp:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = (x == Double.POSITIVE_INFINITY) ? x
+ : (x == Double.NEGATIVE_INFINITY) ? 0.0
+ : Math.exp(x);
+ break;
+
+ case Id_floor:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = Math.floor(x);
+ break;
+
+ case Id_log:
+ x = ScriptRuntime.toNumber(args, 0);
+ // Java's log(<0) = -Infinity; we need NaN
+ x = (x < 0) ? Double.NaN : Math.log(x);
+ break;
+
+ case Id_max:
+ case Id_min:
+ x = (methodId == Id_max)
+ ? Double.NEGATIVE_INFINITY : Double.POSITIVE_INFINITY;
+ for (int i = 0; i != args.length; ++i) {
+ double d = ScriptRuntime.toNumber(args[i]);
+ if (d != d) {
+ x = d; // NaN
+ break;
+ }
+ if (methodId == Id_max) {
+ // if (x < d) x = d; does not work due to -0.0 >= +0.0
+ x = Math.max(x, d);
+ } else {
+ x = Math.min(x, d);
+ }
+ }
+ break;
+
+ case Id_pow:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = js_pow(x, ScriptRuntime.toNumber(args, 1));
+ break;
+
+ case Id_random:
+ x = Math.random();
+ break;
+
+ case Id_round:
+ x = ScriptRuntime.toNumber(args, 0);
+ if (x == x && x != Double.POSITIVE_INFINITY
+ && x != Double.NEGATIVE_INFINITY)
+ {
+ // Round only finite x
+ long l = Math.round(x);
+ if (l != 0) {
+ x = l;
+ } else {
+ // We must propagate the sign of d into the result
+ if (x < 0.0) {
+ x = ScriptRuntime.negativeZero;
+ } else if (x != 0.0) {
+ x = 0.0;
+ }
+ }
+ }
+ break;
+
+ case Id_sin:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = (x == Double.POSITIVE_INFINITY
+ || x == Double.NEGATIVE_INFINITY)
+ ? Double.NaN : Math.sin(x);
+ break;
+
+ case Id_sqrt:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = Math.sqrt(x);
+ break;
+
+ case Id_tan:
+ x = ScriptRuntime.toNumber(args, 0);
+ x = Math.tan(x);
+ break;
+
+ default: throw new IllegalStateException(String.valueOf(methodId));
+ }
+ return ScriptRuntime.wrapNumber(x);
+ }
+
+ // See Ecma 15.8.2.13
+ private double js_pow(double x, double y) {
+ double result;
+ if (y != y) {
+ // y is NaN, result is always NaN
+ result = y;
+ } else if (y == 0) {
+ // Java's pow(NaN, 0) = NaN; we need 1
+ result = 1.0;
+ } else if (x == 0) {
+ // Many dirrerences from Java's Math.pow
+ if (1 / x > 0) {
+ result = (y > 0) ? 0 : Double.POSITIVE_INFINITY;
+ } else {
+ // x is -0, need to check if y is an odd integer
+ long y_long = (long)y;
+ if (y_long == y && (y_long & 0x1) != 0) {
+ result = (y > 0) ? -0.0 : Double.NEGATIVE_INFINITY;
+ } else {
+ result = (y > 0) ? 0.0 : Double.POSITIVE_INFINITY;
+ }
+ }
+ } else {
+ result = Math.pow(x, y);
+ if (result != result) {
+ // Check for broken Java implementations that gives NaN
+ // when they should return something else
+ if (y == Double.POSITIVE_INFINITY) {
+ if (x < -1.0 || 1.0 < x) {
+ result = Double.POSITIVE_INFINITY;
+ } else if (-1.0 < x && x < 1.0) {
+ result = 0;
+ }
+ } else if (y == Double.NEGATIVE_INFINITY) {
+ if (x < -1.0 || 1.0 < x) {
+ result = 0;
+ } else if (-1.0 < x && x < 1.0) {
+ result = Double.POSITIVE_INFINITY;
+ }
+ } else if (x == Double.POSITIVE_INFINITY) {
+ result = (y > 0) ? Double.POSITIVE_INFINITY : 0.0;
+ } else if (x == Double.NEGATIVE_INFINITY) {
+ long y_long = (long)y;
+ if (y_long == y && (y_long & 0x1) != 0) {
+ // y is odd integer
+ result = (y > 0) ? Double.NEGATIVE_INFINITY : -0.0;
+ } else {
+ result = (y > 0) ? Double.POSITIVE_INFINITY : 0.0;
+ }
+ }
+ }
+ }
+ return result;
+ }
+
+// #string_id_map#
+
+ protected int findPrototypeId(String s)
+ {
+ int id;
+// #generated# Last update: 2004-03-17 13:51:32 CET
+ L0: { id = 0; String X = null; int c;
+ L: switch (s.length()) {
+ case 1: if (s.charAt(0)=='E') {id=Id_E; break L0;} break L;
+ case 2: if (s.charAt(0)=='P' && s.charAt(1)=='I') {id=Id_PI; break L0;} break L;
+ case 3: switch (s.charAt(0)) {
+ case 'L': if (s.charAt(2)=='2' && s.charAt(1)=='N') {id=Id_LN2; break L0;} break L;
+ case 'a': if (s.charAt(2)=='s' && s.charAt(1)=='b') {id=Id_abs; break L0;} break L;
+ case 'c': if (s.charAt(2)=='s' && s.charAt(1)=='o') {id=Id_cos; break L0;} break L;
+ case 'e': if (s.charAt(2)=='p' && s.charAt(1)=='x') {id=Id_exp; break L0;} break L;
+ case 'l': if (s.charAt(2)=='g' && s.charAt(1)=='o') {id=Id_log; break L0;} break L;
+ case 'm': c=s.charAt(2);
+ if (c=='n') { if (s.charAt(1)=='i') {id=Id_min; break L0;} }
+ else if (c=='x') { if (s.charAt(1)=='a') {id=Id_max; break L0;} }
+ break L;
+ case 'p': if (s.charAt(2)=='w' && s.charAt(1)=='o') {id=Id_pow; break L0;} break L;
+ case 's': if (s.charAt(2)=='n' && s.charAt(1)=='i') {id=Id_sin; break L0;} break L;
+ case 't': if (s.charAt(2)=='n' && s.charAt(1)=='a') {id=Id_tan; break L0;} break L;
+ } break L;
+ case 4: switch (s.charAt(1)) {
+ case 'N': X="LN10";id=Id_LN10; break L;
+ case 'c': X="acos";id=Id_acos; break L;
+ case 'e': X="ceil";id=Id_ceil; break L;
+ case 'q': X="sqrt";id=Id_sqrt; break L;
+ case 's': X="asin";id=Id_asin; break L;
+ case 't': X="atan";id=Id_atan; break L;
+ } break L;
+ case 5: switch (s.charAt(0)) {
+ case 'L': X="LOG2E";id=Id_LOG2E; break L;
+ case 'S': X="SQRT2";id=Id_SQRT2; break L;
+ case 'a': X="atan2";id=Id_atan2; break L;
+ case 'f': X="floor";id=Id_floor; break L;
+ case 'r': X="round";id=Id_round; break L;
+ } break L;
+ case 6: c=s.charAt(0);
+ if (c=='L') { X="LOG10E";id=Id_LOG10E; }
+ else if (c=='r') { X="random";id=Id_random; }
+ break L;
+ case 7: X="SQRT1_2";id=Id_SQRT1_2; break L;
+ case 8: X="toSource";id=Id_toSource; break L;
+ }
+ if (X!=null && X!=s && !X.equals(s)) id = 0;
+ }
+// #/generated#
+ return id;
+ }
+
+ private static final int
+ Id_toSource = 1,
+ Id_abs = 2,
+ Id_acos = 3,
+ Id_asin = 4,
+ Id_atan = 5,
+ Id_atan2 = 6,
+ Id_ceil = 7,
+ Id_cos = 8,
+ Id_exp = 9,
+ Id_floor = 10,
+ Id_log = 11,
+ Id_max = 12,
+ Id_min = 13,
+ Id_pow = 14,
+ Id_random = 15,
+ Id_round = 16,
+ Id_sin = 17,
+ Id_sqrt = 18,
+ Id_tan = 19,
+
+ LAST_METHOD_ID = 19;
+
+ private static final int
+ Id_E = LAST_METHOD_ID + 1,
+ Id_PI = LAST_METHOD_ID + 2,
+ Id_LN10 = LAST_METHOD_ID + 3,
+ Id_LN2 = LAST_METHOD_ID + 4,
+ Id_LOG2E = LAST_METHOD_ID + 5,
+ Id_LOG10E = LAST_METHOD_ID + 6,
+ Id_SQRT1_2 = LAST_METHOD_ID + 7,
+ Id_SQRT2 = LAST_METHOD_ID + 8,
+
+ MAX_ID = LAST_METHOD_ID + 8;
+
+// #/string_id_map#
+}
generated by cgit v1.2.3-1-g7c22 (git 2.25.1) at 2024-05-17 20:38:33 +0000