/*
* 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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