1 /*
   2  * Copyright (c) 2004, 2008, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 /*
  26  * @test
  27  * @bug 5027675 5048535
  28  * @summary Tests FieldDeclaration.getConstantExpression method
  29  * @library ../../lib
  30  * @compile -source 1.5 ConstExpr.java
  31  * @run main/othervm ConstExpr
  32  */
  33 
  34 
  35 import java.math.RoundingMode;
  36 import java.util.*;
  37 
  38 import com.sun.mirror.declaration.*;
  39 import com.sun.mirror.type.*;
  40 import com.sun.mirror.util.*;
  41 
  42 import static java.math.RoundingMode.UP;
  43 
  44 import static com.sun.mirror.util.DeclarationVisitors.*;
  45 
  46 
  47 public class ConstExpr extends Tester {
  48 
  49     public static void main(String[] args) {
  50         (new ConstExpr()).run();
  51     }
  52 
  53 
  54     // Declarations used by tests
  55 
  56     public static final byte B = (byte) 0xBE;
  57     public static final short S = (short) 32767;
  58     public static final int I = -4;
  59     public static final long l = 4294967296L;
  60     public static final float f = 3.5f;
  61     public static final double PI = Math.PI;
  62     public static final char C = 'C';
  63     public static final String STR = "cheese";
  64 
  65     public static final char SMILEY = '\u263A';
  66     public static final String TWOLINES = "ab\ncd";
  67 
  68     public static final double D1 = Double.POSITIVE_INFINITY;
  69     public static final double D2 = Double.NEGATIVE_INFINITY;
  70     public static final double D3 = Double.NaN;
  71     public static final float  F1 = Float.POSITIVE_INFINITY;
  72     public static final float  F2 = Float.NEGATIVE_INFINITY;
  73     public static final float  F3 = Float.NaN;
  74 
  75     public static final String NOSTR = null;    // not a compile-time constant
  76     public static final RoundingMode R = UP;    // not a compile-time constant
  77 
  78 
  79     @Test(result={
  80               "0xbe",
  81               "32767",
  82               "-4",
  83               "4294967296L",
  84               "3.5f",
  85               "3.141592653589793",
  86               "'C'",
  87               "\"cheese\"",
  88 
  89               "'\\u263a'",
  90               "\"ab\\ncd\"",
  91 
  92               "1.0/0.0",
  93               "-1.0/0.0",
  94               "0.0/0.0",
  95               "1.0f/0.0f",
  96               "-1.0f/0.0f",
  97               "0.0f/0.0f",
  98 
  99               "null",
 100               "null"
 101           },
 102           ordered=true)
 103     Collection<String> getConstantExpression() {
 104         final Collection<String> res = new ArrayList<String>();
 105 
 106         thisClassDecl.accept(
 107             DeclarationVisitors.getSourceOrderDeclarationScanner(
 108                 NO_OP,
 109                 new SimpleDeclarationVisitor() {
 110                     public void visitFieldDeclaration(FieldDeclaration f) {
 111                         res.add(f.getConstantExpression());
 112                     }
 113                 }));
 114         return res;
 115     }
 116 }