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java.lang.Objectorg.eclipse.jdt.core.Signature
public final class Signature
Provides methods for encoding and decoding type and method signature strings.
Signatures obtained from parsing source files (i.e. files with one of the
Java-like extensions
) differ subtly
from ones obtained from pre-compiled binary (".class") files in class names are
usually left unresolved in the former. For example, the normal resolved form
of the type "String" embeds the class's package name ("Ljava.lang.String;"
or "Ljava/lang/String;"), whereas the unresolved form contains only what is
written "QString;".
Generic types introduce to the Java language in J2SE 1.5 add three new facets to signatures: type variables, parameterized types with type arguments, and formal type parameters. Rich signatures containing these facets only occur when dealing with code that makes overt use of the new language features. All other code, and certainly all Java code written or compiled with J2SE 1.4 or earlier, involved only simple signatures.
Note that the "Q" and "!" formats are specific to Eclipse; the remainder are specified in the JVM spec.
The syntax for a type signature is:
TypeSignature ::= "B" // byte | "C" // char | "D" // double | "F" // float | "I" // int | "J" // long | "S" // short | "V" // void | "Z" // boolean | "T" + Identifier + ";" // type variable | "[" + TypeSignature // array X[] | "!" + TypeSignature // capture-of ? | ResolvedClassTypeSignature | UnresolvedClassTypeSignature ResolvedClassTypeSignature ::= // resolved named type (in compiled code) "L" + Identifier + OptionalTypeArguments ( ( "." | "/" ) + Identifier + OptionalTypeArguments )* + ";" | OptionalTypeParameters + "L" + Identifier + ( ( "." | "/" ) + Identifier )* + ";" UnresolvedClassTypeSignature ::= // unresolved named type (in source code) "Q" + Identifier + OptionalTypeArguments ( ( "." | "/" ) + Identifier + OptionalTypeArguments )* + ";" | OptionalTypeParameters "Q" + Identifier + ( ( "." | "/" ) + Identifier )* + ";" OptionalTypeArguments ::= "<" + TypeArgument+ + ">" | TypeArgument ::= | TypeSignature | "*" // wildcard ? | "+" TypeSignature // wildcard ? extends X | "-" TypeSignature // wildcard ? super X OptionalTypeParameters ::= "<" + FormalTypeParameterSignature+ + ">" |
Examples:
"[[I"
denotes int[][]
"Ljava.lang.String;"
denotes java.lang.String
in compiled code"QString;"
denotes String
in source code"Qjava.lang.String;"
denotes java.lang.String
in source code"[QString;"
denotes String[]
in source code"QMap<QString;*>;"
denotes Map<String,?>
in source code"Qjava.util.List<TV;>;"
denotes java.util.List<V>
in source code"<E;>Ljava.util.List;"
denotes <E>java.util.List
in source codeThe syntax for a method signature is:
MethodSignature ::= OptionalTypeParameters + "(" + ParamTypeSignature* + ")" + ReturnTypeSignature ParamTypeSignature ::= TypeSignature ReturnTypeSignature ::= TypeSignature
Examples:
"()I"
denotes int foo()
"([Ljava.lang.String;)V"
denotes void foo(java.lang.String[])
in compiled code"(QString;)QObject;"
denotes Object foo(String)
in source codeThe syntax for a formal type parameter signature is:
FormalTypeParameterSignature ::= TypeVariableName + OptionalClassBound + InterfaceBound* TypeVariableName ::= Identifier OptionalClassBound ::= ":" | ":" + TypeSignature InterfaceBound ::= ":" + TypeSignature
Examples:
"X:"
denotes X
"X:QReader;"
denotes X extends Reader
in source code"X:QReader;:QSerializable;"
denotes X extends Reader & Serializable
in source codeThis class provides static methods and constants only.
Field Summary | |
---|---|
static int |
ARRAY_TYPE_SIGNATURE
Kind constant for an array type signature. |
static int |
BASE_TYPE_SIGNATURE
Kind constant for a base (primitive or void) type signature. |
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 |
CAPTURE_TYPE_SIGNATURE
Kind constant for the capture of a wildcard type signature. |
static int |
CLASS_TYPE_SIGNATURE
Kind constant for a class type signature. |
static java.lang.String |
SIG_BOOLEAN
String constant for the signature of the primitive type boolean. |
static java.lang.String |
SIG_BYTE
String constant for the signature of the primitive type byte. |
static java.lang.String |
SIG_CHAR
String constant for the signature of the primitive type char. |
static java.lang.String |
SIG_DOUBLE
String constant for the signature of the primitive type double. |
static java.lang.String |
SIG_FLOAT
String constant for the signature of the primitive type float. |
static java.lang.String |
SIG_INT
String constant for the signature of the primitive type int. |
static java.lang.String |
SIG_LONG
String constant for the signature of the primitive type long. |
static java.lang.String |
SIG_SHORT
String constant for the signature of the primitive type short. |
static java.lang.String |
SIG_VOID
String constant for the signature of result type void. |
static int |
TYPE_VARIABLE_SIGNATURE
Kind constant for a type variable signature. |
static int |
WILDCARD_TYPE_SIGNATURE
Kind constant for a wildcard type signature. |
Method Summary | |
---|---|
static char[] |
createArraySignature(char[] typeSignature,
int arrayCount)
Creates a new type signature with the given amount of array nesting added to the given type signature. |
static java.lang.String |
createArraySignature(java.lang.String typeSignature,
int arrayCount)
Creates a new type signature with the given amount of array nesting added to the given type signature. |
static char[] |
createCharArrayTypeSignature(char[] typeName,
boolean isResolved)
Creates a new type signature from the given type name encoded as a character array. |
static char[] |
createMethodSignature(char[][] parameterTypes,
char[] returnType)
Creates a method signature from the given parameter and return type signatures. |
static java.lang.String |
createMethodSignature(java.lang.String[] parameterTypes,
java.lang.String returnType)
Creates a method signature from the given parameter and return type signatures. |
static char[] |
createTypeParameterSignature(char[] typeParameterName,
char[][] boundSignatures)
Creates a new type parameter signature with the given name and bounds. |
static java.lang.String |
createTypeParameterSignature(java.lang.String typeParameterName,
java.lang.String[] boundSignatures)
Creates a new type parameter signature with the given name and bounds. |
static java.lang.String |
createTypeSignature(char[] typeName,
boolean isResolved)
Creates a new type signature from the given type name encoded as a character array. |
static java.lang.String |
createTypeSignature(java.lang.String typeName,
boolean isResolved)
Creates a new type signature from the given type name. |
static int |
getArrayCount(char[] typeSignature)
Returns the array count (array nesting depth) of the given type signature. |
static int |
getArrayCount(java.lang.String typeSignature)
Returns the array count (array nesting depth) of the given type signature. |
static char[] |
getElementType(char[] typeSignature)
Returns the type signature without any array nesting. |
static java.lang.String |
getElementType(java.lang.String typeSignature)
Returns the type signature without any array nesting. |
static int |
getParameterCount(char[] methodSignature)
Returns the number of parameter types in the given method signature. |
static int |
getParameterCount(java.lang.String methodSignature)
Returns the number of parameter types in the given method signature. |
static char[][] |
getParameterTypes(char[] methodSignature)
Extracts the parameter type signatures from the given method signature. |
static java.lang.String[] |
getParameterTypes(java.lang.String methodSignature)
Extracts the parameter type signatures from the given method signature. |
static char[] |
getQualifier(char[] name)
Returns a char array containing all but the last segment of the given dot-separated qualified name. |
static java.lang.String |
getQualifier(java.lang.String name)
Returns a string containing all but the last segment of the given dot-separated qualified name. |
static char[] |
getReturnType(char[] methodSignature)
Extracts the return type from the given method signature. |
static java.lang.String |
getReturnType(java.lang.String methodSignature)
Extracts the return type from the given method signature. |
static char[] |
getSignatureQualifier(char[] typeSignature)
Returns package fragment of a type signature. |
static java.lang.String |
getSignatureQualifier(java.lang.String typeSignature)
Returns package fragment of a type signature. |
static char[] |
getSignatureSimpleName(char[] typeSignature)
Returns type fragment of a type signature. |
static java.lang.String |
getSignatureSimpleName(java.lang.String typeSignature)
Returns type fragment of a type signature. |
static char[] |
getSimpleName(char[] name)
Returns the last segment of the given dot-separated qualified name. |
static java.lang.String |
getSimpleName(java.lang.String name)
Returns the last segment of the given dot-separated qualified name. |
static char[][] |
getSimpleNames(char[] name)
Returns all segments of the given dot-separated qualified name. |
static java.lang.String[] |
getSimpleNames(java.lang.String name)
Returns all segments of the given dot-separated qualified name. |
static char[][] |
getThrownExceptionTypes(char[] methodSignature)
Extracts the thrown exception type signatures from the given method signature if any The method signature is expected to be dot-based. |
static java.lang.String[] |
getThrownExceptionTypes(java.lang.String methodSignature)
Extracts the thrown exception type signatures from the given method signature if any The method signature is expected to be dot-based. |
static char[][] |
getTypeArguments(char[] parameterizedTypeSignature)
Extracts the type argument signatures from the given type signature. |
static java.lang.String[] |
getTypeArguments(java.lang.String parameterizedTypeSignature)
Extracts the type argument signatures from the given type signature. |
static char[] |
getTypeErasure(char[] parameterizedTypeSignature)
Extracts the type erasure signature from the given parameterized type signature. |
static java.lang.String |
getTypeErasure(java.lang.String parameterizedTypeSignature)
Extracts the type erasure signature from the given parameterized type signature. |
static char[][] |
getTypeParameterBounds(char[] formalTypeParameterSignature)
Extracts the class and interface bounds from the given formal type parameter signature. |
static java.lang.String[] |
getTypeParameterBounds(java.lang.String formalTypeParameterSignature)
Extracts the class and interface bounds from the given formal type parameter signature. |
static char[][] |
getTypeParameters(char[] methodOrTypeSignature)
Extracts the type parameter signatures from the given method or type signature. |
static java.lang.String[] |
getTypeParameters(java.lang.String methodOrTypeSignature)
Extracts the type parameter signatures from the given method or type signature. |
static int |
getTypeSignatureKind(char[] typeSignature)
Returns the kind of type signature encoded by the given string. |
static int |
getTypeSignatureKind(java.lang.String typeSignature)
Returns the kind of type signature encoded by the given string. |
static char[] |
getTypeVariable(char[] formalTypeParameterSignature)
Extracts the type variable name from the given formal type parameter signature. |
static java.lang.String |
getTypeVariable(java.lang.String formalTypeParameterSignature)
Extracts the type variable name from the given formal type parameter signature. |
static char[] |
removeCapture(char[] methodOrTypeSignature)
Removes any capture information from the given type or method signature and returns the resulting signature. |
static java.lang.String |
removeCapture(java.lang.String methodOrTypeSignature)
Removes any capture information from the given type or method signature and returns the resulting signature. |
static char[] |
toCharArray(char[] signature)
Converts the given type signature to a readable string. |
static char[] |
toCharArray(char[] methodSignature,
char[] methodName,
char[][] parameterNames,
boolean fullyQualifyTypeNames,
boolean includeReturnType)
Converts the given method signature to a readable form. |
static char[] |
toCharArray(char[] methodSignature,
char[] methodName,
char[][] parameterNames,
boolean fullyQualifyTypeNames,
boolean includeReturnType,
boolean isVargArgs)
Converts the given method signature to a readable form. |
static char[] |
toQualifiedName(char[][] segments)
Converts the given array of qualified name segments to a qualified name. |
static java.lang.String |
toQualifiedName(java.lang.String[] segments)
Converts the given array of qualified name segments to a qualified name. |
static java.lang.String |
toString(java.lang.String signature)
Converts the given type signature to a readable string. |
static java.lang.String |
toString(java.lang.String methodSignature,
java.lang.String methodName,
java.lang.String[] parameterNames,
boolean fullyQualifyTypeNames,
boolean includeReturnType)
Converts the given method signature to a readable string. |
static java.lang.String |
toString(java.lang.String methodSignature,
java.lang.String methodName,
java.lang.String[] parameterNames,
boolean fullyQualifyTypeNames,
boolean includeReturnType,
boolean isVarArgs)
Converts the given method signature to a readable string. |
Methods inherited from class java.lang.Object |
---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
public static final char C_BOOLEAN
'Z'
.
public static final char C_BYTE
'B'
.
public static final char C_CHAR
'C'
.
public static final char C_DOUBLE
'D'
.
public static final char C_FLOAT
'F'
.
public static final char C_INT
'I'
.
public static final char C_SEMICOLON
';'
.
public static final char C_COLON
':'
.
public static final char C_LONG
'J'
.
public static final char C_SHORT
'S'
.
public static final char C_VOID
'V'
.
public static final char C_TYPE_VARIABLE
'T'
.
public static final char C_STAR
'*'
.
public static final char C_EXCEPTION_START
'^'
.
public static final char C_EXTENDS
'+'
.
public static final char C_SUPER
'-'
.
public static final char C_DOT
'.'
.
public static final char C_DOLLAR
'$'
.
public static final char C_ARRAY
'['
.
public static final char C_RESOLVED
'L'
.
public static final char C_UNRESOLVED
'Q'
.
public static final char C_NAME_END
';'
.
public static final char C_PARAM_START
'('
.
public static final char C_PARAM_END
')'
.
public static final char C_GENERIC_START
'<'
.
public static final char C_GENERIC_END
'>'
.
public static final char C_CAPTURE
'!'
.
public static final java.lang.String SIG_BOOLEAN
"Z"
.
public static final java.lang.String SIG_BYTE
"B"
.
public static final java.lang.String SIG_CHAR
"C"
.
public static final java.lang.String SIG_DOUBLE
"D"
.
public static final java.lang.String SIG_FLOAT
"F"
.
public static final java.lang.String SIG_INT
"I"
.
public static final java.lang.String SIG_LONG
"J"
.
public static final java.lang.String SIG_SHORT
"S"
.
public static final java.lang.String SIG_VOID
"V"
.
public static final int CLASS_TYPE_SIGNATURE
getTypeSignatureKind(String)
,
Constant Field Valuespublic static final int BASE_TYPE_SIGNATURE
getTypeSignatureKind(String)
,
Constant Field Valuespublic static final int TYPE_VARIABLE_SIGNATURE
getTypeSignatureKind(String)
,
Constant Field Valuespublic static final int ARRAY_TYPE_SIGNATURE
getTypeSignatureKind(String)
,
Constant Field Valuespublic static final int WILDCARD_TYPE_SIGNATURE
getTypeSignatureKind(String)
,
Constant Field Valuespublic static final int CAPTURE_TYPE_SIGNATURE
getTypeSignatureKind(String)
,
Constant Field ValuesMethod Detail |
---|
public static char[] createArraySignature(char[] typeSignature, int arrayCount)
typeSignature
- the type signaturearrayCount
- the desired number of levels of array nesting
public static java.lang.String createArraySignature(java.lang.String typeSignature, int arrayCount)
typeSignature
- the type signaturearrayCount
- the desired number of levels of array nesting
public static char[] createMethodSignature(char[][] parameterTypes, char[] returnType)
parameterTypes
- the list of parameter type signaturesreturnType
- the return type signature
public static java.lang.String createMethodSignature(java.lang.String[] parameterTypes, java.lang.String returnType)
createMethodSignature(parameterTypes, returnType)
.
parameterTypes
- the list of parameter type signaturesreturnType
- the return type signature
createMethodSignature(char[][], char[])
public static char[] createTypeParameterSignature(char[] typeParameterName, char[][] boundSignatures)
typeParameterName
- the type parameter nameboundSignatures
- the signatures of associated bounds or empty array if none
public static java.lang.String createTypeParameterSignature(java.lang.String typeParameterName, java.lang.String[] boundSignatures)
typeParameterName
- the type parameter nameboundSignatures
- the signatures of associated bounds or empty array if none
public static java.lang.String createTypeSignature(char[] typeName, boolean isResolved)
createTypeSignature(new String(typeName),isResolved)
, although
more efficient for callers with character arrays rather than strings. If the
type name is qualified, then it is expected to be dot-based.
typeName
- the possibly qualified type nameisResolved
- true
if the type name is to be considered
resolved (for example, a type name from a binary class file), and
false
if the type name is to be considered unresolved
(for example, a type name found in source code)
createTypeSignature(java.lang.String,boolean)
public static char[] createCharArrayTypeSignature(char[] typeName, boolean isResolved)
createTypeSignature(new String(typeName),isResolved).toCharArray()
,
although more efficient for callers with character arrays rather than strings.
If the type name is qualified, then it is expected to be dot-based.
typeName
- the possibly qualified type nameisResolved
- true
if the type name is to be considered
resolved (for example, a type name from a binary class file), and
false
if the type name is to be considered unresolved
(for example, a type name found in source code)
createTypeSignature(java.lang.String,boolean)
public static java.lang.String createTypeSignature(java.lang.String typeName, boolean isResolved)
For example:
createTypeSignature("int", hucairz) -> "I"
createTypeSignature("java.lang.String", true) -> "Ljava.lang.String;"
createTypeSignature("String", false) -> "QString;"
createTypeSignature("java.lang.String", false) -> "Qjava.lang.String;"
createTypeSignature("int []", false) -> "[I"
typeName
- the possibly qualified type nameisResolved
- true
if the type name is to be considered
resolved (for example, a type name from a binary class file), and
false
if the type name is to be considered unresolved
(for example, a type name found in source code)
public static int getArrayCount(char[] typeSignature) throws java.lang.IllegalArgumentException
typeSignature
- the type signature
java.lang.IllegalArgumentException
- if the signature is not syntactically
correctpublic static int getArrayCount(java.lang.String typeSignature) throws java.lang.IllegalArgumentException
typeSignature
- the type signature
java.lang.IllegalArgumentException
- if the signature is not syntactically
correctpublic static char[] getElementType(char[] typeSignature) throws java.lang.IllegalArgumentException
For example:
getElementType({'[', '[', 'I'}) --> {'I'}.
typeSignature
- the type signature
java.lang.IllegalArgumentException
- if the signature is not syntactically
correctpublic static java.lang.String getElementType(java.lang.String typeSignature) throws java.lang.IllegalArgumentException
For example:
getElementType("[[I") --> "I".
typeSignature
- the type signature
java.lang.IllegalArgumentException
- if the signature is not syntactically
correctpublic static int getParameterCount(char[] methodSignature) throws java.lang.IllegalArgumentException
methodSignature
- the method signature
java.lang.IllegalArgumentException
- if the signature is not syntactically
correctpublic static int getTypeSignatureKind(char[] typeSignature)
typeSignature
- the type signature string
ARRAY_TYPE_SIGNATURE
, CLASS_TYPE_SIGNATURE
,
BASE_TYPE_SIGNATURE
, or TYPE_VARIABLE_SIGNATURE
,
or (since 3.1) WILDCARD_TYPE_SIGNATURE
or CAPTURE_TYPE_SIGNATURE
java.lang.IllegalArgumentException
- if this is not a type signaturepublic static int getTypeSignatureKind(java.lang.String typeSignature)
typeSignature
- the type signature string
ARRAY_TYPE_SIGNATURE
, CLASS_TYPE_SIGNATURE
,
BASE_TYPE_SIGNATURE
, or TYPE_VARIABLE_SIGNATURE
,
or (since 3.1) WILDCARD_TYPE_SIGNATURE
or CAPTURE_TYPE_SIGNATURE
java.lang.IllegalArgumentException
- if this is not a type signaturepublic static int getParameterCount(java.lang.String methodSignature) throws java.lang.IllegalArgumentException
methodSignature
- the method signature
java.lang.IllegalArgumentException
- if the signature is not syntactically
correctpublic static char[][] getParameterTypes(char[] methodSignature) throws java.lang.IllegalArgumentException
methodSignature
- the method signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static java.lang.String[] getParameterTypes(java.lang.String methodSignature) throws java.lang.IllegalArgumentException
methodSignature
- the method signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static java.lang.String[] getThrownExceptionTypes(java.lang.String methodSignature) throws java.lang.IllegalArgumentException
methodSignature
- the method signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static char[][] getThrownExceptionTypes(char[] methodSignature) throws java.lang.IllegalArgumentException
methodSignature
- the method signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static char[][] getTypeArguments(char[] parameterizedTypeSignature) throws java.lang.IllegalArgumentException
parameterizedTypeSignature
- the parameterized type signature
java.lang.IllegalArgumentException
- if the signature is syntactically incorrectpublic static java.lang.String[] getTypeArguments(java.lang.String parameterizedTypeSignature) throws java.lang.IllegalArgumentException
parameterizedTypeSignature
- the parameterized type signature
java.lang.IllegalArgumentException
- if the signature is syntactically incorrectpublic static char[] getTypeErasure(char[] parameterizedTypeSignature) throws java.lang.IllegalArgumentException
parameterizedTypeSignature
- the parameterized type signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static java.lang.String getTypeErasure(java.lang.String parameterizedTypeSignature) throws java.lang.IllegalArgumentException
parameterizedTypeSignature
- the parameterized type signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static char[][] getTypeParameters(char[] methodOrTypeSignature) throws java.lang.IllegalArgumentException
methodOrTypeSignature
- the method or type signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static java.lang.String[] getTypeParameters(java.lang.String methodOrTypeSignature) throws java.lang.IllegalArgumentException
methodOrTypeSignature
- the method or type signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static java.lang.String getTypeVariable(java.lang.String formalTypeParameterSignature) throws java.lang.IllegalArgumentException
formalTypeParameterSignature
- the formal type parameter signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static char[] getTypeVariable(char[] formalTypeParameterSignature) throws java.lang.IllegalArgumentException
formalTypeParameterSignature
- the formal type parameter signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static char[][] getTypeParameterBounds(char[] formalTypeParameterSignature) throws java.lang.IllegalArgumentException
formalTypeParameterSignature
- the formal type parameter signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static java.lang.String[] getTypeParameterBounds(java.lang.String formalTypeParameterSignature) throws java.lang.IllegalArgumentException
formalTypeParameterSignature
- the formal type parameter signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static char[] getQualifier(char[] name)
For example:
getQualifier({'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'O', 'b', 'j', 'e', 'c', 't'}) -> {'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g'}
getQualifier({'O', 'u', 't', 'e', 'r', '.', 'I', 'n', 'n', 'e', 'r'}) -> {'O', 'u', 't', 'e', 'r'}
getQualifier({'j', 'a', 'v', 'a', '.', 'u', 't', 'i', 'l', '.', 'L', 'i', 's', 't', '<', 'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'S', 't', 'r', 'i', 'n', 'g', '>'}) -> {'j', 'a', 'v', 'a', '.', 'u', 't', 'i', 'l'}
name
- the name
java.lang.NullPointerException
- if name is nullpublic static java.lang.String getQualifier(java.lang.String name)
For example:
getQualifier("java.lang.Object") -> "java.lang"
getQualifier("Outer.Inner") -> "Outer"
getQualifier("java.util.List<java.lang.String>") -> "java.util"
name
- the name
java.lang.NullPointerException
- if name is nullpublic static char[] getReturnType(char[] methodSignature) throws java.lang.IllegalArgumentException
methodSignature
- the method signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static java.lang.String getReturnType(java.lang.String methodSignature) throws java.lang.IllegalArgumentException
methodSignature
- the method signature
java.lang.IllegalArgumentException
- if the signature is syntactically
incorrectpublic static char[] getSignatureQualifier(char[] typeSignature)
For example:
getSignatureQualifier({'L', 'j', 'a', 'v', 'a', '.', 'u', 't', 'i', 'l', '.', 'M', 'a', 'p', '$', 'E', 'n', 't', 'r', 'y', ';'}) -> {'j', 'a', 'v', 'a', '.', 'u', 't', 'i', 'l'}
typeSignature
- the type signature
public static java.lang.String getSignatureQualifier(java.lang.String typeSignature)
For example:
getSignatureQualifier("Ljava.util.Map$Entry") -> "java.util"
typeSignature
- the type signature
public static char[] getSignatureSimpleName(char[] typeSignature)
For example:
getSignatureSimpleName({'L', 'j', 'a', 'v', 'a', '.', 'u', 't', 'i', 'l', '.', 'M', 'a', 'p', '$', 'E', 'n', 't', 'r', 'y', ';'}) -> {'M', 'a', 'p', '.', 'E', 'n', 't', 'r', 'y'}
typeSignature
- the type signature
public static java.lang.String getSignatureSimpleName(java.lang.String typeSignature)
For example:
getSignatureSimpleName("Ljava.util.Map$Entry") -> "Map.Entry"
typeSignature
- the type signature
public static char[] getSimpleName(char[] name)
For example:
getSimpleName({'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'O', 'b', 'j', 'e', 'c', 't'}) -> {'O', 'b', 'j', 'e', 'c', 't'}
name
- the name
java.lang.NullPointerException
- if name is nullpublic static java.lang.String getSimpleName(java.lang.String name)
For example:
getSimpleName("java.lang.Object") -> "Object"
getSimpleName("java.util.Map<java.lang.String, java.lang.Object>") -> "Map<String,Object>"
name
- the name
java.lang.NullPointerException
- if name is nullpublic static char[][] getSimpleNames(char[] name)
For example:
getSimpleNames({'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'O', 'b', 'j', 'e', 'c', 't'}) -> {{'j', 'a', 'v', 'a'}, {'l', 'a', 'n', 'g'}, {'O', 'b', 'j', 'e', 'c', 't'}}
getSimpleNames({'O', 'b', 'j', 'e', 'c', 't'}) -> {{'O', 'b', 'j', 'e', 'c', 't'}}
getSimpleNames({}) -> {}
getSimpleNames({'j', 'a', 'v', 'a', '.', 'u', 't', 'i', 'l', '.', 'L', 'i', 's', 't', '<', 'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'S', 't', 'r', 'i', 'n', 'g', '>'}) -> {{'j', 'a', 'v', 'a'}, {'l', 'a', 'n', 'g'}, {'L', 'i', 's', 't', '<', 'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'S', 't', 'r', 'i', 'n', 'g'}}
name
- the name
java.lang.NullPointerException
- if name is nullpublic static java.lang.String[] getSimpleNames(java.lang.String name)
For example:
getSimpleNames("java.lang.Object") -> {"java", "lang", "Object"}
getSimpleNames("Object") -> {"Object"}
getSimpleNames("") -> {}
getSimpleNames("java.util.List<java.lang.String>") ->
{"java", "util", "List<java.lang.String>"}
name
- the name
java.lang.NullPointerException
- if name is nullpublic static char[] removeCapture(char[] methodOrTypeSignature)
For example (using equivalent string-based method):
removeCapture("LTest<!+Ljava.lang.Throwable;>;")
will return: "LTest<+Ljava.lang.Throwable;>;"
methodOrTypeSignature
- the signature which may have been captured
java.lang.NullPointerException
- if methodOrTypeSignature
is nullpublic static java.lang.String removeCapture(java.lang.String methodOrTypeSignature)
For example:
removeCapture("LTest<!+Ljava.lang.Throwable;>;")
will return: "LTest<+Ljava.lang.Throwable;>;"
methodOrTypeSignature
- the signature which may have been captured
java.lang.NullPointerException
- if methodOrTypeSignature
is nullpublic static char[] toCharArray(char[] methodSignature, char[] methodName, char[][] parameterNames, boolean fullyQualifyTypeNames, boolean includeReturnType)
For example:
toString("([Ljava.lang.String;)V", "main", new String[] {"args"}, false, true) -> "void main(String[] args)"
methodSignature
- the method signature to convertmethodName
- the name of the method to insert in the result, or
null
if no method name is to be includedparameterNames
- the parameter names to insert in the result, or
null
if no parameter names are to be included; if supplied,
the number of parameter names must match that of the method signaturefullyQualifyTypeNames
- true
if type names should be fully
qualified, and false
to use only simple namesincludeReturnType
- true
if the return type is to be
included
public static char[] toCharArray(char[] methodSignature, char[] methodName, char[][] parameterNames, boolean fullyQualifyTypeNames, boolean includeReturnType, boolean isVargArgs)
For example:
toString("([Ljava.lang.String;)V", "main", new String[] {"args"}, false, true) -> "void main(String[] args)"
methodSignature
- the method signature to convertmethodName
- the name of the method to insert in the result, or
null
if no method name is to be includedparameterNames
- the parameter names to insert in the result, or
null
if no parameter names are to be included; if supplied,
the number of parameter names must match that of the method signaturefullyQualifyTypeNames
- true
if type names should be fully
qualified, and false
to use only simple namesincludeReturnType
- true
if the return type is to be
includedisVargArgs
- true
if the last argument should be displayed as a
variable argument, false
otherwise.
public static char[] toCharArray(char[] signature) throws java.lang.IllegalArgumentException
For example:
toString({'[', 'L', 'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'S', 't', 'r', 'i', 'n', 'g', ';'}) -> {'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'S', 't', 'r', 'i', 'n', 'g', '[', ']'}
toString({'I'}) -> {'i', 'n', 't'}
toString({'+', 'L', 'O', 'b', 'j', 'e', 'c', 't', ';'}) -> {'?', ' ', 'e', 'x', 't', 'e', 'n', 'd', 's', ' ', 'O', 'b', 'j', 'e', 'c', 't'}
Note: This method assumes that a type signature containing a '$'
is an inner type signature. While this is correct in most cases, someone could
define a non-inner type name containing a '$'
. Handling this
correctly in all cases would have required resolving the signature, which
generally not feasible.
signature
- the type signature
java.lang.IllegalArgumentException
- if the signature is not syntactically
correctpublic static char[] toQualifiedName(char[][] segments)
For example:
toQualifiedName({{'j', 'a', 'v', 'a'}, {'l', 'a', 'n', 'g'}, {'O', 'b', 'j', 'e', 'c', 't'}}) -> {'j', 'a', 'v', 'a', '.', 'l', 'a', 'n', 'g', '.', 'O', 'b', 'j', 'e', 'c', 't'}
toQualifiedName({{'O', 'b', 'j', 'e', 'c', 't'}}) -> {'O', 'b', 'j', 'e', 'c', 't'}
toQualifiedName({{}}) -> {}
segments
- the list of name segments, possibly empty
public static java.lang.String toQualifiedName(java.lang.String[] segments)
For example:
toQualifiedName(new String[] {"java", "lang", "Object"}) -> "java.lang.Object"
toQualifiedName(new String[] {"Object"}) -> "Object"
toQualifiedName(new String[0]) -> ""
segments
- the list of name segments, possibly empty
public static java.lang.String toString(java.lang.String signature) throws java.lang.IllegalArgumentException
For example:
toString("[Ljava.lang.String;") -> "java.lang.String[]"
toString("I") -> "int"
toString("+QObject;") -> "? extends Object"
Note: This method assumes that a type signature containing a '$'
is an inner type signature. While this is correct in most cases, someone could
define a non-inner type name containing a '$'
. Handling this
correctly in all cases would have required resolving the signature, which
generally not feasible.
signature
- the type signature
java.lang.IllegalArgumentException
- if the signature is not syntactically
correctpublic static java.lang.String toString(java.lang.String methodSignature, java.lang.String methodName, java.lang.String[] parameterNames, boolean fullyQualifyTypeNames, boolean includeReturnType)
methodSignature
- the method signature to convertmethodName
- the name of the method to insert in the result, or
null
if no method name is to be includedparameterNames
- the parameter names to insert in the result, or
null
if no parameter names are to be included; if supplied,
the number of parameter names must match that of the method signaturefullyQualifyTypeNames
- true
if type names should be fully
qualified, and false
to use only simple namesincludeReturnType
- true
if the return type is to be
included
toCharArray(char[], char[], char[][], boolean, boolean)
public static java.lang.String toString(java.lang.String methodSignature, java.lang.String methodName, java.lang.String[] parameterNames, boolean fullyQualifyTypeNames, boolean includeReturnType, boolean isVarArgs)
methodSignature
- the method signature to convertmethodName
- the name of the method to insert in the result, or
null
if no method name is to be includedparameterNames
- the parameter names to insert in the result, or
null
if no parameter names are to be included; if supplied,
the number of parameter names must match that of the method signaturefullyQualifyTypeNames
- true
if type names should be fully
qualified, and false
to use only simple namesincludeReturnType
- true
if the return type is to be
includedisVarArgs
- true
if the last argument should be displayed as a
variable argument, false
otherwise
toCharArray(char[], char[], char[][], boolean, boolean)
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