org.eclipse.jdt.internal.compiler.util
类 Util

java.lang.Object
  org.eclipse.jdt.internal.compiler.util.Util

所有已实现的接口：

SuffixConstants

public class Util
extends Object
implements SuffixConstants

嵌套类摘要

static interface

Util.Displayable

字段摘要

static char	C_ARRAY Character constant indicating an array type in a signature.
static char	C_BOOLEAN Character constant indicating the primitive type boolean in a signature.
static char	C_BYTE Character constant indicating the primitive type byte in a signature.
static char	C_CAPTURE Character constant indicating a capture of a wildcard type in a signature.
static char	C_CHAR Character constant indicating the primitive type char in a signature.
static char	C_COLON Character constant indicating the colon in a signature.
static char	C_DOLLAR Character constant indicating the dollar in a signature.
static char	C_DOT Character constant indicating the dot in a signature.
static char	C_DOUBLE Character constant indicating the primitive type double in a signature.
static char	C_EXCEPTION_START Character constant indicating an exception in a signature.
static char	C_EXTENDS Character constant indicating a bound wildcard type argument in a signature with extends clause.
static char	C_FLOAT Character constant indicating the primitive type float in a signature.
static char	C_GENERIC_END Character constant indicating the end of a generic type list in a signature.
static char	C_GENERIC_START Character constant indicating the start of a formal type parameter (or type argument) list in a signature.
static char	C_INT Character constant indicating the primitive type int in a signature.
static char	C_LONG Character constant indicating the primitive type long in a signature.
static char	C_NAME_END Character constant indicating the end of a named type in a signature.
static char	C_PARAM_END Character constant indicating the end of a parameter type list in a signature.
static char	C_PARAM_START Character constant indicating the start of a parameter type list in a signature.
static char	C_RESOLVED Character constant indicating the start of a resolved, named type in a signature.
static char	C_SEMICOLON Character constant indicating the semicolon in a signature.
static char	C_SHORT Character constant indicating the primitive type short in a signature.
static char	C_STAR Character constant indicating an unbound wildcard type argument in a signature.
static char	C_SUPER Character constant indicating a bound wildcard type argument in a signature with super clause.
static char	C_TYPE_VARIABLE Character constant indicating the start of a resolved type variable in a signature.
static char	C_UNRESOLVED Character constant indicating the start of an unresolved, named type in a signature.
static char	C_VOID Character constant indicating result type void in a signature.
static int[]	EMPTY_INT_ARRAY
static String	EMPTY_STRING
static String	LINE_SEPARATOR
static String	UTF_8

从接口 org.eclipse.jdt.internal.compiler.util.SuffixConstants 继承的字段

EXTENSION_class, EXTENSION_CLASS, EXTENSION_java, EXTENSION_JAVA, SUFFIX_class, SUFFIX_CLASS, SUFFIX_java, SUFFIX_JAVA, SUFFIX_STRING_class, SUFFIX_STRING_CLASS, SUFFIX_STRING_java, SUFFIX_STRING_JAVA

构造方法摘要

Util()

方法摘要

static String	buildAllDirectoriesInto(String outputPath, String relativeFileName) Build all the directories and subdirectories corresponding to the packages names into the directory specified in parameters.
static char[]	bytesToChar(byte[] bytes, String encoding) Returns the given bytes as a char array using a given encoding (null means platform default).
static void	collectRunningVMBootclasspath(List bootclasspaths)
static int	computeOuterMostVisibility(TypeDeclaration typeDeclaration, int visibility) Returns the outer most enclosing type's visibility for the given TypeDeclaration and visibility based on compiler options.
static String	getExceptionSummary(Throwable exception) Returns a one line summary for an exception (extracted from its stacktrace: name + first frame)
static byte[]	getFileByteContent(File file) Returns the contents of the given file as a byte array.
static char[]	getFileCharContent(File file, String encoding) Returns the contents of the given file as a char array.
static byte[]	getInputStreamAsByteArray(InputStream stream, int length) Returns the given input stream's contents as a byte array.
static char[]	getInputStreamAsCharArray(InputStream stream, int length, String encoding) Returns the given input stream's contents as a character array.
static File	getJavaHome()
static int	getLineNumber(int position, int[] lineEnds, int g, int d)
static int	getParameterCount(char[] methodSignature)
static byte[]	getZipEntryByteContent(ZipEntry ze, ZipFile zip) Returns the contents of the given zip entry as a byte array.
static int	hashCode(Object[] array)
static boolean	isClassFileName(char[] name) Returns true iff str.toLowerCase().endsWith(".class") implementation is not creating extra strings.
static boolean	isClassFileName(String name) Returns true iff str.toLowerCase().endsWith(".class") implementation is not creating extra strings.
static boolean	isExcluded(char[] path, char[][] inclusionPatterns, char[][] exclusionPatterns, boolean isFolderPath)
static boolean	isJavaFileName(char[] name) Returns true iff str.toLowerCase().endsWith(".java") implementation is not creating extra strings.
static boolean	isJavaFileName(String name) Returns true iff str.toLowerCase().endsWith(".java") implementation is not creating extra strings.
static boolean	isPotentialZipArchive(String name) Returns whether the given name is potentially a zip archive file name (it has a file extension and it is not ".java" nor ".class")
static void	recordNestedType(ClassFile classFile, TypeBinding typeBinding)
static void	reverseQuickSort(char[][] list, int left, int right)
static void	reverseQuickSort(char[][] list, int left, int right, int[] result)
static int	scanArrayTypeSignature(char[] string, int start) Scans the given string for an array type signature starting at the given index and returns the index of the last character.
static int	scanBaseTypeSignature(char[] string, int start) Scans the given string for a base type signature starting at the given index and returns the index of the last character.
static int	scanCaptureTypeSignature(char[] string, int start) Scans the given string for a capture of a wildcard type signature starting at the given index and returns the index of the last character.
static int	scanClassTypeSignature(char[] string, int start) Scans the given string for a class type signature starting at the given index and returns the index of the last character.
static int	scanIdentifier(char[] string, int start) Scans the given string for an identifier starting at the given index and returns the index of the last character.
static int	scanTypeArgumentSignature(char[] string, int start) Scans the given string for a type argument signature starting at the given index and returns the index of the last character.
static int	scanTypeArgumentSignatures(char[] string, int start) Scans the given string for a list of type argument signatures starting at the given index and returns the index of the last character.
static int	scanTypeBoundSignature(char[] string, int start) Scans the given string for a type bound signature starting at the given index and returns the index of the last character.
static int	scanTypeSignature(char[] string, int start) Scans the given string for a type signature starting at the given index and returns the index of the last character.
static int	scanTypeVariableSignature(char[] string, int start) Scans the given string for a type variable signature starting at the given index and returns the index of the last character.
static int	searchColumnNumber(int[] startLineIndexes, int lineNumber, int position) INTERNAL USE-ONLY Search the column number corresponding to a specific position
static Boolean	toBoolean(boolean bool) Converts a boolean value into Boolean.
static String	toString(Object[] objects) Converts an array of Objects into String.
static String	toString(Object[] objects, Util.Displayable renderer) Converts an array of Objects into String.
static void	writeToDisk(boolean generatePackagesStructure, String outputPath, String relativeFileName, ClassFile classFile) outputPath is formed like: c:\temp\ the last character is a file separator relativeFileName is formed like: java\lang\String.class

从类 java.lang.Object 继承的方法

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细信息

C_BOOLEAN

public static final char C_BOOLEAN

Character constant indicating the primitive type boolean in a signature. Value is 'Z'.

另请参见：

常量字段值

C_BYTE

public static final char C_BYTE

Character constant indicating the primitive type byte in a signature. Value is 'B'.

另请参见：

常量字段值

C_CHAR

public static final char C_CHAR

Character constant indicating the primitive type char in a signature. Value is 'C'.

另请参见：

常量字段值

C_DOUBLE

public static final char C_DOUBLE

Character constant indicating the primitive type double in a signature. Value is 'D'.

另请参见：

常量字段值

C_FLOAT

public static final char C_FLOAT

Character constant indicating the primitive type float in a signature. Value is 'F'.

另请参见：

常量字段值

C_INT

public static final char C_INT

Character constant indicating the primitive type int in a signature. Value is 'I'.

另请参见：

常量字段值

C_SEMICOLON

public static final char C_SEMICOLON

Character constant indicating the semicolon in a signature. Value is ';'.

另请参见：

常量字段值

C_COLON

public static final char C_COLON

Character constant indicating the colon in a signature. Value is ':'.

从以下版本开始：

3.0

另请参见：

常量字段值

C_LONG

public static final char C_LONG

Character constant indicating the primitive type long in a signature. Value is 'J'.

另请参见：

常量字段值

C_SHORT

public static final char C_SHORT

Character constant indicating the primitive type short in a signature. Value is 'S'.

另请参见：

常量字段值

C_VOID

public static final char C_VOID

Character constant indicating result type void in a signature. Value is 'V'.

另请参见：

常量字段值

C_TYPE_VARIABLE

public static final char C_TYPE_VARIABLE

Character constant indicating the start of a resolved type variable in a signature. Value is 'T'.

从以下版本开始：

3.0

另请参见：

常量字段值

C_STAR

public static final char C_STAR

Character constant indicating an unbound wildcard type argument in a signature. Value is '*'.

从以下版本开始：

3.0

另请参见：

常量字段值

C_EXCEPTION_START

public static final char C_EXCEPTION_START

Character constant indicating an exception in a signature. Value is '^'.

从以下版本开始：

3.1

另请参见：

常量字段值

C_EXTENDS

public static final char C_EXTENDS

Character constant indicating a bound wildcard type argument in a signature with extends clause. Value is '+'.

从以下版本开始：

3.1

另请参见：

常量字段值

C_SUPER

public static final char C_SUPER

Character constant indicating a bound wildcard type argument in a signature with super clause. Value is '-'.

从以下版本开始：

3.1

另请参见：

常量字段值

C_DOT

public static final char C_DOT

Character constant indicating the dot in a signature. Value is '.'.

另请参见：

常量字段值

C_DOLLAR

public static final char C_DOLLAR

Character constant indicating the dollar in a signature. Value is '$'.

另请参见：

常量字段值

C_ARRAY

public static final char C_ARRAY

Character constant indicating an array type in a signature. Value is '['.

另请参见：

常量字段值

C_RESOLVED

public static final char C_RESOLVED

Character constant indicating the start of a resolved, named type in a signature. Value is 'L'.

另请参见：

常量字段值

C_UNRESOLVED

public static final char C_UNRESOLVED

Character constant indicating the start of an unresolved, named type in a signature. Value is 'Q'.

另请参见：

常量字段值

C_NAME_END

public static final char C_NAME_END

Character constant indicating the end of a named type in a signature. Value is ';'.

另请参见：

常量字段值

C_PARAM_START

public static final char C_PARAM_START

Character constant indicating the start of a parameter type list in a signature. Value is '('.

另请参见：

常量字段值

C_PARAM_END

public static final char C_PARAM_END

Character constant indicating the end of a parameter type list in a signature. Value is ')'.

另请参见：

常量字段值

C_GENERIC_START

public static final char C_GENERIC_START

Character constant indicating the start of a formal type parameter (or type argument) list in a signature. Value is '<'.

从以下版本开始：

3.0

另请参见：

常量字段值

C_GENERIC_END

public static final char C_GENERIC_END

Character constant indicating the end of a generic type list in a signature. Value is '>'.

从以下版本开始：

3.0

另请参见：

常量字段值

C_CAPTURE

public static final char C_CAPTURE

Character constant indicating a capture of a wildcard type in a signature. Value is '!'.

从以下版本开始：

3.1

另请参见：

常量字段值

UTF_8

public static final String UTF_8

另请参见：

常量字段值

LINE_SEPARATOR

public static final String LINE_SEPARATOR

EMPTY_STRING

public static final String EMPTY_STRING

EMPTY_INT_ARRAY

public static final int[] EMPTY_INT_ARRAY

构造方法详细信息

Util

public Util()

方法详细信息

buildAllDirectoriesInto

public static String buildAllDirectoriesInto(String outputPath,
                                             String relativeFileName)
                                      throws IOException

Build all the directories and subdirectories corresponding to the packages names into the directory specified in parameters. outputPath is formed like: c:\temp\ the last character is a file separator relativeFileName is formed like: java\lang\String.class *

参数：

outputPath - java.lang.String

relativeFileName - java.lang.String

返回：

java.lang.String

抛出：

IOException

bytesToChar

public static char[] bytesToChar(byte[] bytes,
                                 String encoding)
                          throws IOException

Returns the given bytes as a char array using a given encoding (null means platform default).

抛出：

IOException

computeOuterMostVisibility

public static int computeOuterMostVisibility(TypeDeclaration typeDeclaration,
                                             int visibility)

Returns the outer most enclosing type's visibility for the given TypeDeclaration and visibility based on compiler options.

getFileByteContent

public static byte[] getFileByteContent(File file)
                                 throws IOException

Returns the contents of the given file as a byte array.

抛出：

IOException - if a problem occured reading the file.

getFileCharContent

public static char[] getFileCharContent(File file,
                                        String encoding)
                                 throws IOException

Returns the contents of the given file as a char array. When encoding is null, then the platform default one is used

抛出：

IOException - if a problem occured reading the file.

getInputStreamAsByteArray

public static byte[] getInputStreamAsByteArray(InputStream stream,
                                               int length)
                                        throws IOException

Returns the given input stream's contents as a byte array. If a length is specified (i.e. if length != -1), only length bytes are returned. Otherwise all bytes in the stream are returned. Note this doesn't close the stream.

抛出：

IOException - if a problem occured reading the stream.

getInputStreamAsCharArray

public static char[] getInputStreamAsCharArray(InputStream stream,
                                               int length,
                                               String encoding)
                                        throws IOException

Returns the given input stream's contents as a character array. If a length is specified (i.e. if length != -1), this represents the number of bytes in the stream. Note this doesn't close the stream.

抛出：

IOException - if a problem occured reading the stream.

getExceptionSummary

public static String getExceptionSummary(Throwable exception)

Returns a one line summary for an exception (extracted from its stacktrace: name + first frame)

参数：

exception -

返回：

one line summary for an exception

getLineNumber

public static int getLineNumber(int position,
                                int[] lineEnds,
                                int g,
                                int d)

getZipEntryByteContent

public static byte[] getZipEntryByteContent(ZipEntry ze,
                                            ZipFile zip)
                                     throws IOException

Returns the contents of the given zip entry as a byte array.

抛出：

IOException - if a problem occured reading the zip entry.

hashCode

public static int hashCode(Object[] array)

isPotentialZipArchive

public static final boolean isPotentialZipArchive(String name)

Returns whether the given name is potentially a zip archive file name (it has a file extension and it is not ".java" nor ".class")

isClassFileName

public static final boolean isClassFileName(char[] name)

Returns true iff str.toLowerCase().endsWith(".class") implementation is not creating extra strings.

isClassFileName

public static final boolean isClassFileName(String name)

Returns true iff str.toLowerCase().endsWith(".class") implementation is not creating extra strings.

isExcluded

public static final boolean isExcluded(char[] path,
                                       char[][] inclusionPatterns,
                                       char[][] exclusionPatterns,
                                       boolean isFolderPath)

isJavaFileName

public static final boolean isJavaFileName(char[] name)

Returns true iff str.toLowerCase().endsWith(".java") implementation is not creating extra strings.

isJavaFileName

public static final boolean isJavaFileName(String name)

Returns true iff str.toLowerCase().endsWith(".java") implementation is not creating extra strings.

reverseQuickSort

public static void reverseQuickSort(char[][] list,
                                    int left,
                                    int right)

reverseQuickSort

public static void reverseQuickSort(char[][] list,
                                    int left,
                                    int right,
                                    int[] result)

searchColumnNumber

public static final int searchColumnNumber(int[] startLineIndexes,
                                           int lineNumber,
                                           int position)

INTERNAL USE-ONLY Search the column number corresponding to a specific position

toBoolean

public static Boolean toBoolean(boolean bool)

Converts a boolean value into Boolean.

参数：

bool - The boolean to convert

返回：

The corresponding Boolean object (TRUE or FALSE).

toString

public static String toString(Object[] objects)

Converts an array of Objects into String.

toString

public static String toString(Object[] objects,
                              Util.Displayable renderer)

Converts an array of Objects into String.

writeToDisk

public static void writeToDisk(boolean generatePackagesStructure,
                               String outputPath,
                               String relativeFileName,
                               ClassFile classFile)
                        throws IOException

outputPath is formed like: c:\temp\ the last character is a file separator relativeFileName is formed like: java\lang\String.class

参数：

generatePackagesStructure - a flag to know if the packages structure has to be generated.

outputPath - the given output directory

relativeFileName - the given relative file name

classFile - the given classFile to write

抛出：

IOException

recordNestedType

public static void recordNestedType(ClassFile classFile,
                                    TypeBinding typeBinding)

getJavaHome

public static File getJavaHome()

collectRunningVMBootclasspath

public static void collectRunningVMBootclasspath(List bootclasspaths)

getParameterCount

public static int getParameterCount(char[] methodSignature)

scanTypeSignature

public static int scanTypeSignature(char[] string,
                                    int start)

Scans the given string for a type signature starting at the given index and returns the index of the last character.

 TypeSignature:
  |  BaseTypeSignature
  |  ArrayTypeSignature
  |  ClassTypeSignature
  |  TypeVariableSignature
 

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not a type signature

scanBaseTypeSignature

public static int scanBaseTypeSignature(char[] string,
                                        int start)

Scans the given string for a base type signature starting at the given index and returns the index of the last character.

 BaseTypeSignature:
     B | C | D | F | I
   | J | S | V | Z
 

Note that although the base type "V" is only allowed in method return types, there is no syntactic ambiguity. This method will accept them anywhere without complaint.

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not a base type signature

scanArrayTypeSignature

public static int scanArrayTypeSignature(char[] string,
                                         int start)

Scans the given string for an array type signature starting at the given index and returns the index of the last character.

 ArrayTypeSignature:
     [ TypeSignature
 

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not an array type signature

scanCaptureTypeSignature

public static int scanCaptureTypeSignature(char[] string,
                                           int start)

Scans the given string for a capture of a wildcard type signature starting at the given index and returns the index of the last character.

 CaptureTypeSignature:
     ! TypeBoundSignature
 

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not a capture type signature

scanTypeVariableSignature

public static int scanTypeVariableSignature(char[] string,
                                            int start)

Scans the given string for a type variable signature starting at the given index and returns the index of the last character.

 TypeVariableSignature:
     T Identifier ;
 

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not a type variable signature

scanIdentifier

public static int scanIdentifier(char[] string,
                                 int start)

Scans the given string for an identifier starting at the given index and returns the index of the last character. Stop characters are: ";", ":", "<", ">", "/", ".".

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not an identifier

scanClassTypeSignature

public static int scanClassTypeSignature(char[] string,
                                         int start)

Scans the given string for a class type signature starting at the given index and returns the index of the last character.

 ClassTypeSignature:
     { L | Q } Identifier
           { { / | . Identifier [ < TypeArgumentSignature* > ] }
           ;
 

Note that although all "/"-identifiers most come before "."-identifiers, there is no syntactic ambiguity. This method will accept them without complaint.

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not a class type signature

scanTypeBoundSignature

public static int scanTypeBoundSignature(char[] string,
                                         int start)

Scans the given string for a type bound signature starting at the given index and returns the index of the last character.

 TypeBoundSignature:
     [-+] TypeSignature ;
     *
 

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not a type variable signature

scanTypeArgumentSignatures

public static int scanTypeArgumentSignatures(char[] string,
                                             int start)

Scans the given string for a list of type argument signatures starting at the given index and returns the index of the last character.

 TypeArgumentSignatures:
     < TypeArgumentSignature* >
 

Note that although there is supposed to be at least one type argument, there is no syntactic ambiguity if there are none. This method will accept zero type argument signatures without complaint.

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not a list of type arguments signatures

scanTypeArgumentSignature

public static int scanTypeArgumentSignature(char[] string,
                                            int start)

Scans the given string for a type argument signature starting at the given index and returns the index of the last character.

 TypeArgumentSignature:
     *
  |  + TypeSignature
  |  - TypeSignature
  |  TypeSignature
 

Note that although base types are not allowed in type arguments, there is no syntactic ambiguity. This method will accept them without complaint.

参数：

string - the signature string

start - the 0-based character index of the first character

返回：

the 0-based character index of the last character

抛出：

IllegalArgumentException - if this is not a type argument signature