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 ;
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: 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: 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: 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 0: aload 0
invokespecial java.lang.Object.<init>:()V
return
end local 0 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 start local 1 0: aload 1
invokevirtual com.oracle.truffle.api.TruffleFile.getName:()Ljava/lang/String;
astore 2
start local 2 1: aload 2
ifnull 3
aload 2
ldc ".py"
invokevirtual java.lang.String.endsWith:(Ljava/lang/String;)Z
ifeq 3
2: ldc "text/x-python"
areturn
3: StackMap locals: java.lang.String
StackMap stack:
aconst_null
areturn
end local 2 end local 1 end local 0 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 start local 1 0: aload 0
ifnonnull 2
1: aconst_null
areturn
2: StackMap locals:
StackMap stack:
getstatic com.oracle.graal.python.PythonFileDetector.ENCODING_COMMENT:Ljava/util/regex/Pattern;
aload 0
invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
astore 2
start local 2 3: aload 2
invokevirtual java.util.regex.Matcher.matches:()Z
ifeq 11
4: aload 2
iconst_1
invokevirtual java.util.regex.Matcher.group:(I)Ljava/lang/String;
astore 3
start local 3 5: iload 1
ifeq 7
aload 3
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: new com.oracle.graal.python.PythonFileDetector$InvalidEncodingException
dup
new java.lang.StringBuilder
dup
aload 3
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$InvalidEncodingException.<init>:(Ljava/lang/String;)V
athrow
7: StackMap locals: java.util.regex.Matcher java.lang.String
StackMap stack:
aload 3
invokestatic com.oracle.graal.python.util.CharsetMapping.getCharset:(Ljava/lang/String;)Ljava/nio/charset/Charset;
astore 4
start local 4 8: aload 4
ifnonnull 10
9: new com.oracle.graal.python.PythonFileDetector$InvalidEncodingException
dup
aload 3
invokespecial com.oracle.graal.python.PythonFileDetector$InvalidEncodingException.<init>:(Ljava/lang/String;)V
athrow
10: StackMap locals: java.nio.charset.Charset
StackMap stack:
aload 4
areturn
end local 4 end local 3 11: StackMap locals:
StackMap stack:
aconst_null
areturn
end local 2 end local 1 end local 0 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 0: aload 0
invokevirtual java.io.BufferedReader.readLine:()Ljava/lang/String;
astore 1
start local 1 1: aload 1
ifnull 12
2: iconst_0
istore 2
start local 2 3: aload 1
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: iconst_1
istore 2
5: aload 1
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
6: StackMap locals: java.lang.String int
StackMap stack:
aload 1
iload 2
invokestatic com.oracle.graal.python.PythonFileDetector.tryGetCharsetFromLine:(Ljava/lang/String;Z)Ljava/nio/charset/Charset;
dup
astore 3
start local 3 7: ifnull 9
8: aload 3
areturn
9: StackMap locals: java.nio.charset.Charset
StackMap stack:
getstatic com.oracle.graal.python.PythonFileDetector.BLANK_LINE:Ljava/util/regex/Pattern;
aload 1
invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
invokevirtual java.util.regex.Matcher.matches:()Z
ifeq 12
10: aload 0
invokevirtual java.io.BufferedReader.readLine:()Ljava/lang/String;
iload 2
invokestatic com.oracle.graal.python.PythonFileDetector.tryGetCharsetFromLine:(Ljava/lang/String;Z)Ljava/nio/charset/Charset;
dup
astore 3
ifnull 12
11: aload 3
areturn
end local 3 end local 2 12: StackMap locals:
StackMap stack:
getstatic java.nio.charset.StandardCharsets.UTF_8:Ljava/nio/charset/Charset;
areturn
end local 1 end local 0 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 0: aconst_null
astore 1
aconst_null
astore 2
1: aload 0
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
start local 3 2: aload 3
invokestatic com.oracle.graal.python.PythonFileDetector.findEncodingStrict:(Ljava/io/BufferedReader;)Ljava/nio/charset/Charset;
3: aload 3
ifnull 4
aload 3
invokevirtual java.io.BufferedReader.close:()V
4: 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: aload 3
ifnull 7
aload 3
invokevirtual java.io.BufferedReader.close:()V
end local 3 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 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 0: aconst_null
astore 1
aconst_null
astore 2
1: new java.io.BufferedReader
dup
new java.io.StringReader
dup
aload 0
invokespecial java.io.StringReader.<init>:(Ljava/lang/String;)V
invokespecial java.io.BufferedReader.<init>:(Ljava/io/Reader;)V
astore 3
start local 3 2: aload 3
invokestatic com.oracle.graal.python.PythonFileDetector.findEncodingStrict:(Ljava/io/BufferedReader;)Ljava/nio/charset/Charset;
3: aload 3
ifnull 4
aload 3
invokevirtual java.io.BufferedReader.close:()V
4: 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: aload 3
ifnull 7
aload 3
invokevirtual java.io.BufferedReader.close:()V
end local 3 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
start local 1 12: new java.lang.RuntimeException
dup
aload 1
invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
athrow
end local 1 end local 0 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 0: 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
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
start local 3 2: aload 3
invokestatic com.oracle.graal.python.PythonFileDetector.findEncodingStrict:(Ljava/io/BufferedReader;)Ljava/nio/charset/Charset;
3: aload 3
ifnull 4
aload 3
invokevirtual java.io.BufferedReader.close:()V
4: 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: aload 3
ifnull 7
aload 3
invokevirtual java.io.BufferedReader.close:()V
end local 3 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
start local 1 12: new java.lang.RuntimeException
dup
aload 1
invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
athrow
end local 1 end local 0 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$TruffleBoundary()
MethodParameters:
Name Flags
source
public java.nio.charset.Charset findEncoding(com.oracle.truffle.api.TruffleFile);
descriptor: (Lcom/oracle/truffle/api/TruffleFile;)Ljava/nio/charset/Charset;
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=2, args_size=2
start local 0 start local 1 0: aload 1
invokestatic com.oracle.graal.python.PythonFileDetector.findEncodingStrict:(Lcom/oracle/truffle/api/TruffleFile;)Ljava/nio/charset/Charset;
1: areturn
2: StackMap locals:
StackMap stack: com.oracle.graal.python.PythonFileDetector$InvalidEncodingException
pop
3: getstatic java.nio.charset.StandardCharsets.ISO_8859_1:Ljava/nio/charset/Charset;
areturn
end local 1 end local 0 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