https://github.com/jruby/jruby/jruby-core: JRuby is the effort to recreate the Ruby (https://www.ruby-lang.org) interpreter in Java. (JRuby)
  • headius
  • enebo
  • wmeissner
  • BanzaiMan
  • mkristian 
class org.jruby.util.SafeDecimalParser
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.jruby.util.SafeDecimalParser
  super_class: java.lang.Object
{
  protected static final java.math.BigDecimal TWO;
    descriptor: Ljava/math/BigDecimal;
    flags: (0x001c) ACC_PROTECTED, ACC_STATIC, ACC_FINAL

  protected static final java.math.BigDecimal LOWER;
    descriptor: Ljava/math/BigDecimal;
    flags: (0x001c) ACC_PROTECTED, ACC_STATIC, ACC_FINAL

  protected static final java.math.BigDecimal UPPER;
    descriptor: Ljava/math/BigDecimal;
    flags: (0x001c) ACC_PROTECTED, ACC_STATIC, ACC_FINAL

  protected static final java.math.BigDecimal MIDDLE;
    descriptor: Ljava/math/BigDecimal;
    flags: (0x001c) ACC_PROTECTED, ACC_STATIC, ACC_FINAL

  private static final java.lang.Double UPPER_DOUBLE;
    descriptor: Ljava/lang/Double;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.lang.Double LOWER_DOUBLE;
    descriptor: Ljava/lang/Double;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.lang.String SUSPICIOUS_DIGITS;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: "22250738585072"

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 8
            new java.math.BigDecimal
            dup
            iconst_2
            invokespecial java.math.BigDecimal.<init>:(I)V
            putstatic org.jruby.util.SafeDecimalParser.TWO:Ljava/math/BigDecimal;
         1: .line 11
            new java.math.BigDecimal
            dup
            ldc "2.22507385850720113605e-308"
            invokespecial java.math.BigDecimal.<init>:(Ljava/lang/String;)V
            putstatic org.jruby.util.SafeDecimalParser.LOWER:Ljava/math/BigDecimal;
         2: .line 14
            new java.math.BigDecimal
            dup
            ldc "2.22507385850720125958e-308"
            invokespecial java.math.BigDecimal.<init>:(Ljava/lang/String;)V
            putstatic org.jruby.util.SafeDecimalParser.UPPER:Ljava/math/BigDecimal;
         3: .line 17
            getstatic org.jruby.util.SafeDecimalParser.LOWER:Ljava/math/BigDecimal;
            getstatic org.jruby.util.SafeDecimalParser.UPPER:Ljava/math/BigDecimal;
            invokevirtual java.math.BigDecimal.add:(Ljava/math/BigDecimal;)Ljava/math/BigDecimal;
            getstatic org.jruby.util.SafeDecimalParser.TWO:Ljava/math/BigDecimal;
            invokevirtual java.math.BigDecimal.divide:(Ljava/math/BigDecimal;)Ljava/math/BigDecimal;
            putstatic org.jruby.util.SafeDecimalParser.MIDDLE:Ljava/math/BigDecimal;
         4: .line 20
            getstatic org.jruby.util.SafeDecimalParser.UPPER:Ljava/math/BigDecimal;
            invokevirtual java.math.BigDecimal.doubleValue:()D
            invokestatic java.lang.Double.valueOf:(D)Ljava/lang/Double;
            putstatic org.jruby.util.SafeDecimalParser.UPPER_DOUBLE:Ljava/lang/Double;
         5: .line 23
            getstatic org.jruby.util.SafeDecimalParser.LOWER:Ljava/math/BigDecimal;
            invokevirtual java.math.BigDecimal.doubleValue:()D
            invokestatic java.lang.Double.valueOf:(D)Ljava/lang/Double;
            putstatic org.jruby.util.SafeDecimalParser.LOWER_DOUBLE:Ljava/lang/Double;
         6: .line 26
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.jruby.util.SafeDecimalParser this
         0: .line 5
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.jruby.util.SafeDecimalParser this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/util/SafeDecimalParser;

  protected static final boolean isSuspicious(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x001c) ACC_PROTECTED, ACC_STATIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.String s
         0: .line 36
            aload 0 /* s */
            invokestatic org.jruby.util.SafeDecimalParser.digits:(Ljava/lang/String;)Ljava/lang/String;
            ldc "22250738585072"
            invokevirtual java.lang.String.indexOf:(Ljava/lang/String;)I
            iflt 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // java.lang.String s
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0     s  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      s     

  protected static final java.lang.Double decimalValueOf(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/Double;
    flags: (0x001c) ACC_PROTECTED, ACC_STATIC, ACC_FINAL
    Code:
      stack=1, locals=2, args_size=1
        start local 0 // java.lang.String s
         0: .line 47
            aconst_null
            astore 1 /* result */
        start local 1 // java.lang.Double result
         1: .line 48
            aload 0 /* s */
            ifnull 6
         2: .line 49
            aload 0 /* s */
            invokestatic org.jruby.util.SafeDecimalParser.isSuspicious:(Ljava/lang/String;)Z
            ifeq 5
         3: .line 51
            aload 0 /* s */
            invokestatic org.jruby.util.SafeDecimalParser.parseSafely:(Ljava/lang/String;)Ljava/lang/Double;
            astore 1 /* result */
         4: .line 52
            goto 6
         5: .line 53
      StackMap locals: java.lang.Double
      StackMap stack:
            aload 0 /* s */
            invokestatic java.lang.Double.valueOf:(Ljava/lang/String;)Ljava/lang/Double;
            astore 1 /* result */
         6: .line 56
      StackMap locals:
      StackMap stack:
            aload 1 /* result */
            areturn
        end local 1 // java.lang.Double result
        end local 0 // java.lang.String s
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    7     0       s  Ljava/lang/String;
            1    7     1  result  Ljava/lang/Double;
    MethodParameters:
      Name  Flags
      s     

  protected static final double decimalValue(java.lang.Number);
    descriptor: (Ljava/lang/Number;)D
    flags: (0x001c) ACC_PROTECTED, ACC_STATIC, ACC_FINAL
    Code:
      stack=2, locals=3, args_size=1
        start local 0 // java.lang.Number number
         0: .line 67
            dconst_0
            dstore 1 /* result */
        start local 1 // double result
         1: .line 68
            aload 0 /* number */
            ifnull 6
         2: .line 69
            aload 0 /* number */
            instanceof java.math.BigDecimal
            ifeq 5
         3: .line 70
            aload 0 /* number */
            checkcast java.math.BigDecimal
            invokestatic org.jruby.util.SafeDecimalParser.decimalValue:(Ljava/math/BigDecimal;)D
            dstore 1 /* result */
         4: .line 71
            goto 6
         5: .line 72
      StackMap locals: double
      StackMap stack:
            aload 0 /* number */
            invokevirtual java.lang.Number.doubleValue:()D
            dstore 1 /* result */
         6: .line 75
      StackMap locals:
      StackMap stack:
            dload 1 /* result */
            dreturn
        end local 1 // double result
        end local 0 // java.lang.Number number
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    7     0  number  Ljava/lang/Number;
            1    7     1  result  D
    MethodParameters:
        Name  Flags
      number  

  protected static final double decimalValue(java.math.BigDecimal);
    descriptor: (Ljava/math/BigDecimal;)D
    flags: (0x001c) ACC_PROTECTED, ACC_STATIC, ACC_FINAL
    Code:
      stack=2, locals=3, args_size=1
        start local 0 // java.math.BigDecimal bigDecimal
         0: .line 86
            dconst_0
            dstore 1 /* result */
        start local 1 // double result
         1: .line 87
            aload 0 /* bigDecimal */
            ifnull 6
         2: .line 88
            aload 0 /* bigDecimal */
            invokestatic org.jruby.util.SafeDecimalParser.isDangerous:(Ljava/math/BigDecimal;)Z
            ifeq 5
         3: .line 89
            aload 0 /* bigDecimal */
            invokevirtual java.math.BigDecimal.toString:()Ljava/lang/String;
            invokestatic org.jruby.util.SafeDecimalParser.decimalValueOf:(Ljava/lang/String;)Ljava/lang/Double;
            invokevirtual java.lang.Double.doubleValue:()D
            dstore 1 /* result */
         4: .line 90
            goto 6
         5: .line 91
      StackMap locals: double
      StackMap stack:
            aload 0 /* bigDecimal */
            invokevirtual java.math.BigDecimal.doubleValue:()D
            dstore 1 /* result */
         6: .line 94
      StackMap locals:
      StackMap stack:
            dload 1 /* result */
            dreturn
        end local 1 // double result
        end local 0 // java.math.BigDecimal bigDecimal
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    7     0  bigDecimal  Ljava/math/BigDecimal;
            1    7     1      result  D
    MethodParameters:
            Name  Flags
      bigDecimal  

  private static final java.lang.Double parseSafely(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/Double;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // java.lang.String s
         0: .line 108
            new java.math.BigDecimal
            dup
            aload 0 /* s */
            invokespecial java.math.BigDecimal.<init>:(Ljava/lang/String;)V
            astore 2 /* bd */
        start local 2 // java.math.BigDecimal bd
         1: .line 109
            aload 2 /* bd */
            invokestatic org.jruby.util.SafeDecimalParser.isDangerous:(Ljava/math/BigDecimal;)Z
            ifeq 7
         2: .line 110
            aload 2 /* bd */
            getstatic org.jruby.util.SafeDecimalParser.MIDDLE:Ljava/math/BigDecimal;
            invokevirtual java.math.BigDecimal.compareTo:(Ljava/math/BigDecimal;)I
            iflt 5
         3: .line 111
            getstatic org.jruby.util.SafeDecimalParser.UPPER_DOUBLE:Ljava/lang/Double;
            astore 1 /* result */
        start local 1 // java.lang.Double result
         4: .line 112
            goto 8
        end local 1 // java.lang.Double result
         5: .line 113
      StackMap locals: java.lang.String top java.math.BigDecimal
      StackMap stack:
            getstatic org.jruby.util.SafeDecimalParser.LOWER_DOUBLE:Ljava/lang/Double;
            astore 1 /* result */
        start local 1 // java.lang.Double result
         6: .line 115
            goto 8
        end local 1 // java.lang.Double result
         7: .line 116
      StackMap locals:
      StackMap stack:
            aload 0 /* s */
            invokestatic java.lang.Double.valueOf:(Ljava/lang/String;)Ljava/lang/Double;
            astore 1 /* result */
        start local 1 // java.lang.Double result
         8: .line 118
      StackMap locals: java.lang.String java.lang.Double java.math.BigDecimal
      StackMap stack:
            aload 1 /* result */
            areturn
        end local 2 // java.math.BigDecimal bd
        end local 1 // java.lang.Double result
        end local 0 // java.lang.String s
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    9     0       s  Ljava/lang/String;
            4    5     1  result  Ljava/lang/Double;
            6    7     1  result  Ljava/lang/Double;
            8    9     1  result  Ljava/lang/Double;
            1    9     2      bd  Ljava/math/BigDecimal;
    MethodParameters:
      Name  Flags
      s     

  private static final java.lang.String digits(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Code:
      stack=3, locals=6, args_size=1
        start local 0 // java.lang.String s
         0: .line 129
            aload 0 /* s */
            invokevirtual java.lang.String.toCharArray:()[C
            astore 1 /* ca */
        start local 1 // char[] ca
         1: .line 130
            aload 1 /* ca */
            arraylength
            istore 2 /* len */
        start local 2 // int len
         2: .line 131
            new java.lang.StringBuilder
            dup
            iload 2 /* len */
            invokespecial java.lang.StringBuilder.<init>:(I)V
            astore 3 /* b */
        start local 3 // java.lang.StringBuilder b
         3: .line 132
            iconst_0
            istore 4 /* i */
        start local 4 // int i
         4: goto 9
         5: .line 133
      StackMap locals: java.lang.String char[] int java.lang.StringBuilder int
      StackMap stack:
            aload 1 /* ca */
            iload 4 /* i */
            caload
            istore 5 /* c */
        start local 5 // char c
         6: .line 134
            iload 5 /* c */
            bipush 48
            if_icmplt 8
            iload 5 /* c */
            bipush 57
            if_icmpgt 8
         7: .line 135
            aload 3 /* b */
            iload 5 /* c */
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
        end local 5 // char c
         8: .line 132
      StackMap locals:
      StackMap stack:
            iinc 4 /* i */ 1
      StackMap locals:
      StackMap stack:
         9: iload 4 /* i */
            iload 2 /* len */
            if_icmplt 5
        end local 4 // int i
        10: .line 138
            aload 3 /* b */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 3 // java.lang.StringBuilder b
        end local 2 // int len
        end local 1 // char[] ca
        end local 0 // java.lang.String s
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   11     0     s  Ljava/lang/String;
            1   11     1    ca  [C
            2   11     2   len  I
            3   11     3     b  Ljava/lang/StringBuilder;
            4   10     4     i  I
            6    8     5     c  C
    MethodParameters:
      Name  Flags
      s     

  private static final boolean isDangerous(java.math.BigDecimal);
    descriptor: (Ljava/math/BigDecimal;)Z
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.math.BigDecimal bd
         0: .line 149
            aload 0 /* bd */
            getstatic org.jruby.util.SafeDecimalParser.UPPER:Ljava/math/BigDecimal;
            invokevirtual java.math.BigDecimal.compareTo:(Ljava/math/BigDecimal;)I
            ifge 1
            aload 0 /* bd */
            getstatic org.jruby.util.SafeDecimalParser.LOWER:Ljava/math/BigDecimal;
            invokevirtual java.math.BigDecimal.compareTo:(Ljava/math/BigDecimal;)I
            ifle 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // java.math.BigDecimal bd
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0    bd  Ljava/math/BigDecimal;
    MethodParameters:
      Name  Flags
      bd    
}
SourceFile: "SafeDecimalParser.java"