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ref.getClazz and instr.objData are now type sigs instead of class names

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git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@579 379699f6-c40d-0410-875b-85095c16579e
stable
jochen 26 years ago
parent 8bdb47b625
commit 3ca944a9d5
1 changed files with 21 additions and 12 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 33
      jode/jode/jvm/CodeVerifier.java

33
jode/jode/jvm/CodeVerifier.java
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@ -91,7 +91,7 @@ public class CodeVerifier implements Opcodes {
public final void need(int count) throws VerifyException { public final void need(int count) throws VerifyException {
if (stackHeight < count) if (stackHeight < count)
throw new VerifyException("stack overflow"); throw new VerifyException("stack underflow");
} }
public final void push(Type type) throws VerifyException { public final void push(Type type) throws VerifyException {
@ -412,9 +412,12 @@ public class CodeVerifier implements Opcodes {
throw new VerifyException(instr.getDescription()); throw new VerifyException(instr.getDescription());
break; break;
} }
case opc_pop: case opc_pop2: case opc_pop: case opc_pop2: {
result.stackHeight -= instr.opcode - (opc_pop-1); int count = instr.opcode - (opc_pop-1);
result.need(count);
result.stackHeight -= count;
break; break;
}
case opc_dup: case opc_dup_x1: case opc_dup_x2: { case opc_dup: case opc_dup_x1: case opc_dup_x2: {
int depth = instr.opcode - opc_dup; int depth = instr.opcode - opc_dup;
result.reserve(1); result.reserve(1);
@ -672,7 +675,7 @@ public class CodeVerifier implements Opcodes {
} }
case opc_getfield: { case opc_getfield: {
Reference ref = (Reference) instr.objData; Reference ref = (Reference) instr.objData;
Type classType = Type.tClass(ref.getClazz()); Type classType = Type.tType(ref.getClazz());
if (!isOfType(result.pop(), classType)) if (!isOfType(result.pop(), classType))
throw new VerifyException(instr.getDescription()); throw new VerifyException(instr.getDescription());
Type type = Type.tType(ref.getType()); Type type = Type.tType(ref.getType());
@ -699,7 +702,7 @@ public class CodeVerifier implements Opcodes {
throw new VerifyException(instr.getDescription()); throw new VerifyException(instr.getDescription());
if (!isOfType(result.pop(), type)) if (!isOfType(result.pop(), type))
throw new VerifyException(instr.getDescription()); throw new VerifyException(instr.getDescription());
Type classType = Type.tClass(ref.getClazz()); Type classType = Type.tType(ref.getClazz());
if (!isOfType(result.pop(), classType)) if (!isOfType(result.pop(), classType))
throw new VerifyException(instr.getDescription()); throw new VerifyException(instr.getDescription());
break; break;
@ -724,10 +727,14 @@ public class CodeVerifier implements Opcodes {
if (!(clazz instanceof UninitializedClassType)) if (!(clazz instanceof UninitializedClassType))
throw new VerifyException(instr.getDescription()); throw new VerifyException(instr.getDescription());
UninitializedClassType uct = (UninitializedClassType) clazz; UninitializedClassType uct = (UninitializedClassType) clazz;
ClassInfo refCi = ClassInfo.forName(ref.getClazz()); String refClazz = ref.getClazz();
if (refCi != uct.classType if (refClazz.charAt(0) != 'L')
&& (!uct.maySuper throw new VerifyException(instr.getDescription());
|| refCi != uct.classType.getSuperclass())) refClazz = refClazz.substring(1, refClazz.length()-1)
.replace('/','.');
if (!uct.classType.getName().equals(refClazz)
&& (!uct.maySuper || !(uct.classType.getSuperclass()
.getName().equals(refClazz))))
throw new VerifyException(instr.getDescription()); throw new VerifyException(instr.getDescription());
Type newType = Type.tClass(uct.classType); Type newType = Type.tClass(uct.classType);
for (int i=0; i< result.stackHeight; i++) for (int i=0; i< result.stackHeight; i++)
@ -737,7 +744,7 @@ public class CodeVerifier implements Opcodes {
if (result.locals[i] == clazz) if (result.locals[i] == clazz)
result.locals[i] = newType; result.locals[i] = newType;
} else if (instr.opcode != opc_invokestatic) { } else if (instr.opcode != opc_invokestatic) {
Type classType = Type.tClass(ref.getClazz()); Type classType = Type.tType(ref.getClazz());
if (!isOfType(result.pop(), classType)) if (!isOfType(result.pop(), classType))
throw new VerifyException(instr.getDescription()); throw new VerifyException(instr.getDescription());
} }
@ -750,7 +757,9 @@ public class CodeVerifier implements Opcodes {
break; break;
} }
case opc_new: { case opc_new: {
ClassInfo ci = ClassInfo.forName((String) instr.objData); String clName = (String) instr.objData;
ClassInfo ci = ClassInfo.forName
(clName.substring(1, clName.length()-1).replace('/','.'));
result.stack[result.stackHeight++] = result.stack[result.stackHeight++] =
new UninitializedClassType(ci, false); new UninitializedClassType(ci, false);
break; break;
@ -769,7 +778,7 @@ public class CodeVerifier implements Opcodes {
break; break;
} }
case opc_checkcast: { case opc_checkcast: {
Type classType = Type.tClassOrArray((String) instr.objData); Type classType = Type.tType((String) instr.objData);
if (!isOfType(result.pop(), Type.tUObject)) if (!isOfType(result.pop(), Type.tUObject))
throw new VerifyException(instr.getDescription()); throw new VerifyException(instr.getDescription());
result.push(classType); result.push(classType);

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