public final class com.oracle.graal.python.PythonFileDetector implements com.oracle.truffle.api.TruffleFile$FileTypeDetector
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.oracle.graal.python.PythonFileDetector
  super_class: java.lang.Object
{
  private static final java.lang.String UTF_8_BOM_IN_LATIN_1;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.util.regex.Pattern ENCODING_COMMENT;
    descriptor: Ljava/util/regex/Pattern;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.util.regex.Pattern BLANK_LINE;
    descriptor: Ljava/util/regex/Pattern;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=6, locals=0, args_size=0
         0: .line 59
            new java.lang.String
            dup
            iconst_3
            newarray 8
            dup
            iconst_0
            bipush -17
            bastore
            dup
            iconst_1
            bipush -69
            bastore
            dup
            iconst_2
            bipush -65
            bastore
            getstatic java.nio.charset.StandardCharsets.ISO_8859_1:Ljava/nio/charset/Charset;
            invokespecial java.lang.String.<init>:([BLjava/nio/charset/Charset;)V
            putstatic com.oracle.graal.python.PythonFileDetector.UTF_8_BOM_IN_LATIN_1:Ljava/lang/String;
         1: .line 60
            ldc "^[ \t\f]*#.*?coding[:=][ \t]*([-_.a-zA-Z0-9]+).*"
            invokestatic java.util.regex.Pattern.compile:(Ljava/lang/String;)Ljava/util/regex/Pattern;
            putstatic com.oracle.graal.python.PythonFileDetector.ENCODING_COMMENT:Ljava/util/regex/Pattern;
         2: .line 61
            ldc "^[ \t\f]*(?:#.*)?"
            invokestatic java.util.regex.Pattern.compile:(Ljava/lang/String;)Ljava/util/regex/Pattern;
            putstatic com.oracle.graal.python.PythonFileDetector.BLANK_LINE:Ljava/util/regex/Pattern;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.graal.python.PythonFileDetector this
         0: .line 57
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.oracle.graal.python.PythonFileDetector this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/graal/python/PythonFileDetector;

  public java.lang.String findMimeType(com.oracle.truffle.api.TruffleFile);
    descriptor: (Lcom/oracle/truffle/api/TruffleFile;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // com.oracle.graal.python.PythonFileDetector this
        start local 1 // com.oracle.truffle.api.TruffleFile file
         0: .line 65
            aload 1 /* file */
            invokevirtual com.oracle.truffle.api.TruffleFile.getName:()Ljava/lang/String;
            astore 2 /* fileName */
        start local 2 // java.lang.String fileName
         1: .line 66
            aload 2 /* fileName */
            ifnull 3
            aload 2 /* fileName */
            ldc ".py"
            invokevirtual java.lang.String.endsWith:(Ljava/lang/String;)Z
            ifeq 3
         2: .line 67
            ldc "text/x-python"
            areturn
         3: .line 69
      StackMap locals: java.lang.String
      StackMap stack:
            aconst_null
            areturn
        end local 2 // java.lang.String fileName
        end local 1 // com.oracle.truffle.api.TruffleFile file
        end local 0 // com.oracle.graal.python.PythonFileDetector this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Lcom/oracle/graal/python/PythonFileDetector;
            0    4     1      file  Lcom/oracle/truffle/api/TruffleFile;
            1    4     2  fileName  Ljava/lang/String;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      file  

  private static java.nio.charset.Charset tryGetCharsetFromLine(java.lang.String, boolean);
    descriptor: (Ljava/lang/String;Z)Ljava/nio/charset/Charset;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=5, locals=5, args_size=2
        start local 0 // java.lang.String line
        start local 1 // boolean hasBOM
         0: .line 88
            aload 0 /* line */
            ifnonnull 2
         1: .line 89
            aconst_null
            areturn
         2: .line 91
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.graal.python.PythonFileDetector.ENCODING_COMMENT:Ljava/util/regex/Pattern;
            aload 0 /* line */
            invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
            astore 2 /* matcher */
        start local 2 // java.util.regex.Matcher matcher
         3: .line 92
            aload 2 /* matcher */
            invokevirtual java.util.regex.Matcher.matches:()Z
            ifeq 11
         4: .line 95
            aload 2 /* matcher */
            iconst_1
            invokevirtual java.util.regex.Matcher.group:(I)Ljava/lang/String;
            astore 3 /* encoding */
        start local 3 // java.lang.String encoding
         5: .line 96
            iload 1 /* hasBOM */
            ifeq 7
            aload 3 /* encoding */
            invokestatic com.oracle.graal.python.util.CharsetMapping.normalize:(Ljava/lang/String;)Ljava/lang/String;
            ldc "utf_8"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 7
         6: .line 97
            new com.oracle.graal.python.PythonFileDetector$InvalidEncodingException
            dup
            new java.lang.StringBuilder
            dup
            aload 3 /* encoding */
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc " with BOM"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial com.oracle.graal.python.PythonFileDetector$InvalidEncodingException.<init>:(Ljava/lang/String;)V
            athrow
         7: .line 99
      StackMap locals: java.util.regex.Matcher java.lang.String
      StackMap stack:
            aload 3 /* encoding */
            invokestatic com.oracle.graal.python.util.CharsetMapping.getCharset:(Ljava/lang/String;)Ljava/nio/charset/Charset;
            astore 4 /* charset */
        start local 4 // java.nio.charset.Charset charset
         8: .line 100
            aload 4 /* charset */
            ifnonnull 10
         9: .line 101
            new com.oracle.graal.python.PythonFileDetector$InvalidEncodingException
            dup
            aload 3 /* encoding */
            invokespecial com.oracle.graal.python.PythonFileDetector$InvalidEncodingException.<init>:(Ljava/lang/String;)V
            athrow
        10: .line 103
      StackMap locals: java.nio.charset.Charset
      StackMap stack:
            aload 4 /* charset */
            areturn
        end local 4 // java.nio.charset.Charset charset
        end local 3 // java.lang.String encoding
        11: .line 105
      StackMap locals:
      StackMap stack:
            aconst_null
            areturn
        end local 2 // java.util.regex.Matcher matcher
        end local 1 // boolean hasBOM
        end local 0 // java.lang.String line
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   12     0      line  Ljava/lang/String;
            0   12     1    hasBOM  Z
            3   12     2   matcher  Ljava/util/regex/Matcher;
            5   11     3  encoding  Ljava/lang/String;
            8   11     4   charset  Ljava/nio/charset/Charset;
    MethodParameters:
        Name  Flags
      line    
      hasBOM  

  public static java.nio.charset.Charset findEncodingStrict(java.io.BufferedReader);
    descriptor: (Ljava/io/BufferedReader;)Ljava/nio/charset/Charset;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=4, args_size=1
        start local 0 // java.io.BufferedReader reader
         0: .line 111
            aload 0 /* reader */
            invokevirtual java.io.BufferedReader.readLine:()Ljava/lang/String;
            astore 1 /* firstLine */
        start local 1 // java.lang.String firstLine
         1: .line 112
            aload 1 /* firstLine */
            ifnull 12
         2: .line 113
            iconst_0
            istore 2 /* hasBOM */
        start local 2 // boolean hasBOM
         3: .line 114
            aload 1 /* firstLine */
            getstatic com.oracle.graal.python.PythonFileDetector.UTF_8_BOM_IN_LATIN_1:Ljava/lang/String;
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ifeq 6
         4: .line 115
            iconst_1
            istore 2 /* hasBOM */
         5: .line 116
            aload 1 /* firstLine */
            getstatic com.oracle.graal.python.PythonFileDetector.UTF_8_BOM_IN_LATIN_1:Ljava/lang/String;
            invokevirtual java.lang.String.length:()I
            invokevirtual java.lang.String.substring:(I)Ljava/lang/String;
            astore 1 /* firstLine */
         6: .line 119
      StackMap locals: java.lang.String int
      StackMap stack:
            aload 1 /* firstLine */
            iload 2 /* hasBOM */
            invokestatic com.oracle.graal.python.PythonFileDetector.tryGetCharsetFromLine:(Ljava/lang/String;Z)Ljava/nio/charset/Charset;
            dup
            astore 3 /* charset */
        start local 3 // java.nio.charset.Charset charset
         7: ifnull 9
         8: .line 120
            aload 3 /* charset */
            areturn
         9: .line 122
      StackMap locals: java.nio.charset.Charset
      StackMap stack:
            getstatic com.oracle.graal.python.PythonFileDetector.BLANK_LINE:Ljava/util/regex/Pattern;
            aload 1 /* firstLine */
            invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
            invokevirtual java.util.regex.Matcher.matches:()Z
            ifeq 12
        10: .line 123
            aload 0 /* reader */
            invokevirtual java.io.BufferedReader.readLine:()Ljava/lang/String;
            iload 2 /* hasBOM */
            invokestatic com.oracle.graal.python.PythonFileDetector.tryGetCharsetFromLine:(Ljava/lang/String;Z)Ljava/nio/charset/Charset;
            dup
            astore 3 /* charset */
            ifnull 12
        11: .line 124
            aload 3 /* charset */
            areturn
        end local 3 // java.nio.charset.Charset charset
        end local 2 // boolean hasBOM
        12: .line 128
      StackMap locals:
      StackMap stack:
            getstatic java.nio.charset.StandardCharsets.UTF_8:Ljava/nio/charset/Charset;
            areturn
        end local 1 // java.lang.String firstLine
        end local 0 // java.io.BufferedReader reader
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   13     0     reader  Ljava/io/BufferedReader;
            1   13     1  firstLine  Ljava/lang/String;
            3   12     2     hasBOM  Z
            7   12     3    charset  Ljava/nio/charset/Charset;
    Exceptions:
      throws java.io.IOException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
        Name  Flags
      reader  

  public static java.nio.charset.Charset findEncodingStrict(com.oracle.truffle.api.TruffleFile);
    descriptor: (Lcom/oracle/truffle/api/TruffleFile;)Ljava/nio/charset/Charset;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=4, args_size=1
        start local 0 // com.oracle.truffle.api.TruffleFile file
         0: .line 134
            aconst_null
            astore 1
            aconst_null
            astore 2
         1: aload 0 /* file */
            getstatic java.nio.charset.StandardCharsets.ISO_8859_1:Ljava/nio/charset/Charset;
            invokevirtual com.oracle.truffle.api.TruffleFile.newBufferedReader:(Ljava/nio/charset/Charset;)Ljava/io/BufferedReader;
            astore 3 /* reader */
        start local 3 // java.io.BufferedReader reader
         2: .line 135
            aload 3 /* reader */
            invokestatic com.oracle.graal.python.PythonFileDetector.findEncodingStrict:(Ljava/io/BufferedReader;)Ljava/nio/charset/Charset;
         3: .line 136
            aload 3 /* reader */
            ifnull 4
            aload 3 /* reader */
            invokevirtual java.io.BufferedReader.close:()V
         4: .line 135
      StackMap locals: com.oracle.truffle.api.TruffleFile java.lang.Throwable java.lang.Throwable java.io.BufferedReader
      StackMap stack: java.nio.charset.Charset
            areturn
      StackMap locals:
      StackMap stack: java.lang.Throwable
         5: astore 1
         6: .line 136
            aload 3 /* reader */
            ifnull 7
            aload 3 /* reader */
            invokevirtual java.io.BufferedReader.close:()V
        end local 3 // java.io.BufferedReader reader
      StackMap locals:
      StackMap stack:
         7: aload 1
            athrow
      StackMap locals:
      StackMap stack: java.lang.Throwable
         8: astore 2
            aload 1
            ifnonnull 9
            aload 2
            astore 1
            goto 10
      StackMap locals:
      StackMap stack:
         9: aload 1
            aload 2
            if_acmpeq 10
            aload 1
            aload 2
            invokevirtual java.lang.Throwable.addSuppressed:(Ljava/lang/Throwable;)V
      StackMap locals:
      StackMap stack:
        10: aload 1
            athrow
        end local 0 // com.oracle.truffle.api.TruffleFile file
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   11     0    file  Lcom/oracle/truffle/api/TruffleFile;
            2    7     3  reader  Ljava/io/BufferedReader;
      Exception table:
        from    to  target  type
           2     3       5  any
           1     4       8  any
           5     8       8  any
    Exceptions:
      throws java.io.IOException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
      Name  Flags
      file  

  public static java.nio.charset.Charset findEncodingStrict(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/nio/charset/Charset;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=4, args_size=1
        start local 0 // java.lang.String source
         0: .line 141
            aconst_null
            astore 1
            aconst_null
            astore 2
         1: new java.io.BufferedReader
            dup
            new java.io.StringReader
            dup
            aload 0 /* source */
            invokespecial java.io.StringReader.<init>:(Ljava/lang/String;)V
            invokespecial java.io.BufferedReader.<init>:(Ljava/io/Reader;)V
            astore 3 /* reader */
        start local 3 // java.io.BufferedReader reader
         2: .line 142
            aload 3 /* reader */
            invokestatic com.oracle.graal.python.PythonFileDetector.findEncodingStrict:(Ljava/io/BufferedReader;)Ljava/nio/charset/Charset;
         3: .line 143
            aload 3 /* reader */
            ifnull 4
            aload 3 /* reader */
            invokevirtual java.io.BufferedReader.close:()V
         4: .line 142
      StackMap locals: java.lang.String java.lang.Throwable java.lang.Throwable java.io.BufferedReader
      StackMap stack: java.nio.charset.Charset
            areturn
      StackMap locals:
      StackMap stack: java.lang.Throwable
         5: astore 1
         6: .line 143
            aload 3 /* reader */
            ifnull 7
            aload 3 /* reader */
            invokevirtual java.io.BufferedReader.close:()V
        end local 3 // java.io.BufferedReader reader
      StackMap locals:
      StackMap stack:
         7: aload 1
            athrow
      StackMap locals:
      StackMap stack: java.lang.Throwable
         8: astore 2
            aload 1
            ifnonnull 9
            aload 2
            astore 1
            goto 10
      StackMap locals:
      StackMap stack:
         9: aload 1
            aload 2
            if_acmpeq 10
            aload 1
            aload 2
            invokevirtual java.lang.Throwable.addSuppressed:(Ljava/lang/Throwable;)V
      StackMap locals:
      StackMap stack:
        10: aload 1
            athrow
      StackMap locals: java.lang.String
      StackMap stack: java.io.IOException
        11: astore 1 /* e */
        start local 1 // java.io.IOException e
        12: .line 145
            new java.lang.RuntimeException
            dup
            aload 1 /* e */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.io.IOException e
        end local 0 // java.lang.String source
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   13     0  source  Ljava/lang/String;
            2    7     3  reader  Ljava/io/BufferedReader;
           12   13     1       e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           2     3       5  any
           1     4       8  any
           5     8       8  any
           0     4      11  Class java.io.IOException
           5    11      11  Class java.io.IOException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
        Name  Flags
      source  

  public static java.nio.charset.Charset findEncodingStrict(byte[]);
    descriptor: ([B)Ljava/nio/charset/Charset;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=7, locals=4, args_size=1
        start local 0 // byte[] source
         0: .line 152
            aconst_null
            astore 1
            aconst_null
            astore 2
         1: new java.io.BufferedReader
            dup
            new java.io.InputStreamReader
            dup
            new java.io.ByteArrayInputStream
            dup
            aload 0 /* source */
            invokespecial java.io.ByteArrayInputStream.<init>:([B)V
            getstatic java.nio.charset.StandardCharsets.ISO_8859_1:Ljava/nio/charset/Charset;
            invokespecial java.io.InputStreamReader.<init>:(Ljava/io/InputStream;Ljava/nio/charset/Charset;)V
            invokespecial java.io.BufferedReader.<init>:(Ljava/io/Reader;)V
            astore 3 /* reader */
        start local 3 // java.io.BufferedReader reader
         2: .line 153
            aload 3 /* reader */
            invokestatic com.oracle.graal.python.PythonFileDetector.findEncodingStrict:(Ljava/io/BufferedReader;)Ljava/nio/charset/Charset;
         3: .line 154
            aload 3 /* reader */
            ifnull 4
            aload 3 /* reader */
            invokevirtual java.io.BufferedReader.close:()V
         4: .line 153
      StackMap locals: byte[] java.lang.Throwable java.lang.Throwable java.io.BufferedReader
      StackMap stack: java.nio.charset.Charset
            areturn
      StackMap locals:
      StackMap stack: java.lang.Throwable
         5: astore 1
         6: .line 154
            aload 3 /* reader */
            ifnull 7
            aload 3 /* reader */
            invokevirtual java.io.BufferedReader.close:()V
        end local 3 // java.io.BufferedReader reader
      StackMap locals:
      StackMap stack:
         7: aload 1
            athrow
      StackMap locals:
      StackMap stack: java.lang.Throwable
         8: astore 2
            aload 1
            ifnonnull 9
            aload 2
            astore 1
            goto 10
      StackMap locals:
      StackMap stack:
         9: aload 1
            aload 2
            if_acmpeq 10
            aload 1
            aload 2
            invokevirtual java.lang.Throwable.addSuppressed:(Ljava/lang/Throwable;)V
      StackMap locals:
      StackMap stack:
        10: aload 1
            athrow
      StackMap locals: byte[]
      StackMap stack: java.io.IOException
        11: astore 1 /* e */
        start local 1 // java.io.IOException e
        12: .line 156
            new java.lang.RuntimeException
            dup
            aload 1 /* e */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.io.IOException e
        end local 0 // byte[] source
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   13     0  source  [B
            2    7     3  reader  Ljava/io/BufferedReader;
           12   13     1       e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           2     3       5  any
           1     4       8  any
           5     8       8  any
           0     4      11  Class java.io.IOException
           5    11      11  Class java.io.IOException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
        Name  Flags
      source  

  public java.nio.charset.Charset findEncoding(com.oracle.truffle.api.TruffleFile);
    descriptor: (Lcom/oracle/truffle/api/TruffleFile;)Ljava/nio/charset/Charset;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // com.oracle.graal.python.PythonFileDetector this
        start local 1 // com.oracle.truffle.api.TruffleFile file
         0: .line 163
            aload 1 /* file */
            invokestatic com.oracle.graal.python.PythonFileDetector.findEncodingStrict:(Lcom/oracle/truffle/api/TruffleFile;)Ljava/nio/charset/Charset;
         1: areturn
         2: .line 164
      StackMap locals:
      StackMap stack: com.oracle.graal.python.PythonFileDetector$InvalidEncodingException
            pop
         3: .line 168
            getstatic java.nio.charset.StandardCharsets.ISO_8859_1:Ljava/nio/charset/Charset;
            areturn
        end local 1 // com.oracle.truffle.api.TruffleFile file
        end local 0 // com.oracle.graal.python.PythonFileDetector this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lcom/oracle/graal/python/PythonFileDetector;
            0    4     1  file  Lcom/oracle/truffle/api/TruffleFile;
      Exception table:
        from    to  target  type
           0     1       2  Class com.oracle.graal.python.PythonFileDetector$InvalidEncodingException
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      file  
}
SourceFile: "PythonFileDetector.java"
NestMembers:
  com.oracle.graal.python.PythonFileDetector$InvalidEncodingException
InnerClasses:
  public InvalidEncodingException = com.oracle.graal.python.PythonFileDetector$InvalidEncodingException of com.oracle.graal.python.PythonFileDetector
  public abstract TruffleBoundary = com.oracle.truffle.api.CompilerDirectives$TruffleBoundary of com.oracle.truffle.api.CompilerDirectives
  public abstract FileTypeDetector = com.oracle.truffle.api.TruffleFile$FileTypeDetector of com.oracle.truffle.api.TruffleFile