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/********************************************************************
* Copyright (c) 2006 Contributors. All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v1.0
* which accompanies this distribution and is available at
* http://eclipse.org/legal/epl-v10.html
*
* Contributors: IBM Corporation - initial API and implementation
* Helen Hawkins - initial version
*******************************************************************/
package org.aspectj.asm.internal;
public class NameConvertor {
private static final char BOOLEAN = 'Z';
private static final char BYTE = 'B';
private static final char CHAR = 'C';
private static final char DOUBLE = 'D';
private static final char FLOAT = 'F';
private static final char INT = 'I';
private static final char LONG = 'J';
private static final char SHORT = 'S';
private static final char ARRAY = '[';
private static final char RESOLVED = 'L';
private static final char UNRESOLVED = 'Q';
public static final char PARAMETERIZED = 'P';
private static final char[] BOOLEAN_NAME = new char[] { 'b', 'o', 'o', 'l', 'e', 'a', 'n' };
private static final char[] BYTE_NAME = new char[] { 'b', 'y', 't', 'e' };
private static final char[] CHAR_NAME = new char[] { 'c', 'h', 'a', 'r' };
private static final char[] DOUBLE_NAME = new char[] { 'd', 'o', 'u', 'b', 'l', 'e' };
private static final char[] FLOAT_NAME = new char[] { 'f', 'l', 'o', 'a', 't' };
private static final char[] INT_NAME = new char[] { 'i', 'n', 't' };
private static final char[] LONG_NAME = new char[] { 'l', 'o', 'n', 'g' };
private static final char[] SHORT_NAME = new char[] { 's', 'h', 'o', 'r', 't' };
private static final char[] SQUARE_BRACKETS = new char[] { '[', ']' };
private static final char[] GREATER_THAN = new char[] { '>' };
private static final char[] LESS_THAN = new char[] { '<' };
private static final char[] COMMA = new char[] { ',' };
private static final char[] BACKSLASH_LESSTHAN = new char[] { '\\', '<' };
private static final char[] SEMICOLON = new char[] { ';' };
/**
* Creates a readable name from the given char array, for example, given 'I' returns 'int'. Moreover, given
* 'Ljava/lang/String;' returns 'java.lang.String'
*/
public static char[] convertFromSignature(char[] c) {
int lt = CharOperation.indexOf('<', c);
int sc = CharOperation.indexOf(';', c);
int gt = CharOperation.indexOf('>', c);
int smallest = 0;
if (lt == -1 && sc == -1 && gt == -1) {
// we have something like 'Ljava/lang/String' or 'I'
return getFullyQualifiedTypeName(c);
} else if (lt != -1 && (sc == -1 || lt <= sc) && (gt == -1 || lt <= gt)) {
// we have something like 'Ljava/lang/String;'
smallest = gt;
}
char[] first = CharOperation.subarray(c, 0, smallest);
char[] second = CharOperation.subarray(c, smallest + 1, c.length);
if (smallest == 0 && first.length == 0 && c[0] == '>') {
// c = {'>',';'} therefore we just want to return '>' to
// close the generic signature
return GREATER_THAN;
} else if (first.length == 1 && second.length == 0) {
return first;
} else if (second.length == 0 || (second.length == 1 && second[0] == ';')) {
// we've reached the end of the array, therefore only care about
// the first part
return convertFromSignature(first);
} else if (smallest == lt) {
// if c = 'Ljava/lang/String;'
char[] inclComma = CharOperation.concat(convertFromSignature(first), COMMA);
return CharOperation.concat(inclComma, convertFromSignature(second));
}
return CharOperation.concat(convertFromSignature(first), convertFromSignature(second));
}
/**
* Given a char array, returns the type name for this. For example 'I' returns 'int', 'Ljava/lang/String' returns
* 'java.lang.String' and '[Ljava/lang/String' returns 'java.lang.String[]'
*
* NOTE: Doesn't go any deaper so given 'Ljava/lang/String;' it would return
* 'java.lang.String;', however, only called with something like 'Ljava/lang/String'
*/
private static char[] getFullyQualifiedTypeName(char[] c) {
if (c.length == 0) {
return c;
}
if (c[0] == BOOLEAN) {
return BOOLEAN_NAME;
} else if (c[0] == BYTE) {
return BYTE_NAME;
} else if (c[0] == CHAR) {
return CHAR_NAME;
} else if (c[0] == DOUBLE) {
return DOUBLE_NAME;
} else if (c[0] == FLOAT) {
return FLOAT_NAME;
} else if (c[0] == INT) {
return INT_NAME;
} else if (c[0] == LONG) {
return LONG_NAME;
} else if (c[0] == SHORT) {
return SHORT_NAME;
} else if (c[0] == ARRAY) {
return CharOperation.concat(getFullyQualifiedTypeName(CharOperation.subarray(c, 1, c.length)), SQUARE_BRACKETS);
} else {
char[] type = CharOperation.subarray(c, 1, c.length);
CharOperation.replace(type, '/', '.');
return type;
}
}
// public static char[] createShortName(char[] c) {
// return createShortName(c, false);
// }
/**
* Given 'Ppkg/MyGenericClass;' will return 'QMyGenericClass;'
*/
public static char[] createShortName(char[] c, boolean haveFullyQualifiedAtLeastOneThing, boolean needsFullyQualifiedFirstEntry) {
if (c[0] == '[') {
char[] ret = CharOperation.concat(new char[] { '\\', '[' }, createShortName(CharOperation.subarray(c, 1, c.length),
haveFullyQualifiedAtLeastOneThing, needsFullyQualifiedFirstEntry));
return ret;
} else if (c[0] == '+') {
char[] ret = CharOperation.concat(new char[] { '+' }, createShortName(CharOperation.subarray(c, 1, c.length),
haveFullyQualifiedAtLeastOneThing, needsFullyQualifiedFirstEntry));
return ret;
} else if (c[0] == '*') {
return c; // c is *>;
}
int lt = CharOperation.indexOf('<', c);
int sc = CharOperation.indexOf(';', c);
int gt = CharOperation.indexOf('>', c);
int smallest = 0;
if (lt == -1 && sc == -1 && gt == -1) {
// we have something like 'Ljava/lang/String' or 'I'
if (!needsFullyQualifiedFirstEntry) {
return getTypeName(c, true);
} else {
return getTypeName(c, haveFullyQualifiedAtLeastOneThing);
}
} else if (lt != -1 && (sc == -1 || lt <= sc) && (gt == -1 || lt <= gt)) {
// we have something like 'Ljava/lang/String;'
smallest = gt;
}
char[] first = CharOperation.subarray(c, 0, smallest);
char[] second = CharOperation.subarray(c, smallest + 1, c.length);
if (smallest == 0 && first.length == 0 && c[0] == '>') {
// c = {'>',';'} therefore we just want to return c to
// close the generic signature
return c;
} else if (first.length == 1 && second.length == 0) {
return first;
} else if (second.length == 0 || (second.length == 1 && second[0] == ';')) {
// we've reached the end of the array, therefore only care about
// the first part
return CharOperation.concat(createShortName(first, haveFullyQualifiedAtLeastOneThing, needsFullyQualifiedFirstEntry),
new char[] { ';' });
} else if (smallest == lt) {
// if c = 'Ljava/lang/String;