/*
* Copyright ( c ) 2020 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation . Oracle designates this
* particular file as subject to the " Classpath " exception as provided
* by Oracle in the LICENSE file that accompanied this code .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
#include "util.h"
#include "signature.h"
/*
* JNI signature constants , beyond those defined in JVM_TYPE ( * )
*/
#define SIGNATURE_BEGIN_ARGS '('
#define SIGNATURE_END_ARGS ')'
#define SIGNATURE_END_CLASS ';'
char * componentTypeSignature(const char *signature) {
jbyte typeKey = jdwpTag(signature);
JDI_ASSERT(isArrayTag(typeKey));
JVM_TYPE_ASSERT(signature[1 ]);
return (char *)&signature[1 ];
}
jbyte methodSignature_returnTag(char *signature)
{
char *tagPtr = strchr(signature, SIGNATURE_END_ARGS);
JDI_ASSERT(tagPtr);
tagPtr++; /* 1st character after the end of args */
JVM_TYPE_ASSERT((jbyte)*tagPtr);
return (jbyte)*tagPtr;
}
void methodSignature_init(char *signature, void **cursor)
{
JDI_ASSERT(signature[0 ] == SIGNATURE_BEGIN_ARGS);
*cursor = signature + 1 ; /* skip to the first arg */
}
jboolean methodSignature_nextArgumentExists(void **cursor, jbyte *argumentTag)
{
char *tagPtr = *cursor;
jbyte nextType = (jbyte)*tagPtr;
if (*tagPtr != SIGNATURE_END_ARGS) {
/* Skip any array modifiers */
while (*tagPtr == JDWP_TAG(ARRAY)) {
tagPtr++;
}
/* Skip class name */
if (*tagPtr == JDWP_TAG(OBJECT)) {
tagPtr = strchr(tagPtr, SIGNATURE_END_CLASS) + 1 ;
JDI_ASSERT(tagPtr);
} else {
/* Skip primitive sig */
tagPtr++;
}
}
*cursor = tagPtr;
if (nextType != SIGNATURE_END_ARGS) {
JVM_TYPE_ASSERT(nextType);
*argumentTag = nextType;
return JNI_TRUE;
}
return JNI_FALSE;
}
/*
* Convert the signature " Ljava / lang / Foo ; " to a
* classname " java . lang . Foo " compatible with the pattern .
* Signature is overwritten in - place .
*/
void convertSignatureToClassname(char *convert)
{
char *p;
p = convert + 1 ;
while ((*p != ';' ) && (*p != '\0' )) {
char c = *p;
if (c == '/' ) {
*(p-1 ) = '.' ;
} else if (c == '.' ) {
// class signature of a hidden class is "Ljava/lang/Foo.1234;"
// map to "java.lang.Foo/1234"
*(p-1 ) = '/' ;
} else {
*(p-1 ) = c;
}
p++;
}
*(p-1 ) = '\0' ;
}
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