From be7d01ed62d74d9c4b7b53f96bb82c8f109f859e Mon Sep 17 00:00:00 2001
From: tromey <tromey@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 5 Apr 2005 22:26:26 +0000
Subject: 	* jni.cc (_Jv_JNI_GetAnyFieldID): Throw
 ClassNotFoundException. 	* java/lang/reflect/natMethod.cc
 (_Jv_GetTypesFromSignature): 	Rewrote to use _Jv_FindClassFromSignature. 
 * verify.cc (resolve): throw NoClassDefFoundError. 	* link.cc
 (resolve_field): Throw NoClassDefFoundError. 	(find_field): Likewise. 
 * prims.cc (_Jv_FindClassFromSignature): Removed recursion. 	Handle error
 cases.  Added 'endp' argument. 	* include/jvm.h
 (_Jv_FindClassFromSignature): Updated prototype.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@97660 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libjava/prims.cc | 79 +++++++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 56 insertions(+), 23 deletions(-)

(limited to 'libjava/prims.cc')

diff --git a/libjava/prims.cc b/libjava/prims.cc
index 70601712238..fadc466bc0e 100644
--- a/libjava/prims.cc
+++ b/libjava/prims.cc
@@ -675,46 +675,79 @@ _Jv_InitPrimClass (jclass cl, char *cname, char sig, int len)
 }
 
 jclass
-_Jv_FindClassFromSignature (char *sig, java::lang::ClassLoader *loader)
+_Jv_FindClassFromSignature (char *sig, java::lang::ClassLoader *loader,
+			    char **endp)
 {
+  // First count arrays.
+  int array_count = 0;
+  while (*sig == '[')
+    {
+      ++sig;
+      ++array_count;
+    }
+
+  jclass result = NULL;
   switch (*sig)
     {
     case 'B':
-      return JvPrimClass (byte);
+      result = JvPrimClass (byte);
+      break;
     case 'S':
-      return JvPrimClass (short);
+      result = JvPrimClass (short);
+      break;
     case 'I':
-      return JvPrimClass (int);
+      result = JvPrimClass (int);
+      break;
     case 'J':
-      return JvPrimClass (long);
+      result = JvPrimClass (long);
+      break;
     case 'Z':
-      return JvPrimClass (boolean);
+      result = JvPrimClass (boolean);
+      break;
     case 'C':
-      return JvPrimClass (char);
+      result = JvPrimClass (char);
+      break;
     case 'F':
-      return JvPrimClass (float);
+      result = JvPrimClass (float);
+      break;
     case 'D':
-      return JvPrimClass (double);
+      result = JvPrimClass (double);
+      break;
     case 'V':
-      return JvPrimClass (void);
+      result = JvPrimClass (void);
+      break;
     case 'L':
       {
-	int i;
-	for (i = 1; sig[i] && sig[i] != ';'; ++i)
-	  ;
-	_Jv_Utf8Const *name = _Jv_makeUtf8Const (&sig[1], i - 1);
-	return _Jv_FindClass (name, loader);
-      }
-    case '[':
-      {
-	jclass klass = _Jv_FindClassFromSignature (&sig[1], loader);
-	if (! klass)
-	  return NULL;
-	return _Jv_GetArrayClass (klass, loader);
+	char *save = ++sig;
+	while (*sig && *sig != ';')
+	  ++sig;
+	// Do nothing if signature appears to be malformed.
+	if (*sig == ';')
+	  {
+	    _Jv_Utf8Const *name = _Jv_makeUtf8Const (save, sig - save);
+	    result = _Jv_FindClass (name, loader);
+	  }
+	break;
       }
+    default:
+      // Do nothing -- bad signature.
+      break;
     }
 
-  return NULL;			// Placate compiler.
+  if (endp)
+    {
+      // Not really the "end", but the last valid character that we
+      // looked at.
+      *endp = sig;
+    }
+
+  if (! result)
+    return NULL;
+
+  // Find arrays.
+  while (array_count-- > 0)
+    result = _Jv_GetArrayClass (result, loader);
+  return result;
 }
 
 
-- 
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