@Override
public String visitConstantPoolRef(Instruction instr, int index, Void p) {
StringBuilder sb = new StringBuilder();
sb.append(instr.getMnemonic());
cpRef(sb, instr.getOpcode(), cls.constantPool[index]);
return sb.toString();
}
@Override
public String visitBranch(Instruction instr, int offset, Void p) {
StringBuilder sb = new StringBuilder();
return sb.append(instr.getMnemonic())
.append(' ')
.append(label(instr.getPC(), offset))
.toString();
}
@Override
public String visitLocalAndValue(Instruction instr, int index, int value, Void p) {
StringBuilder sb = new StringBuilder();
return sb.append(instr.getMnemonic())
.append(' ')
.append(index)
.append(' ')
.append(value)
.toString();
}
void verifyBytecode(VarargsMethod selected, JavaSource source, int id) {
bytecodeCheckCount.incrementAndGet();
File compiledTest = new File(String.format("Test%d.class", id));
try {
ClassFile cf = ClassFile.read(compiledTest);
Method testMethod = null;
for (Method m : cf.methods) {
if (m.getName(cf.constant_pool).equals("test")) {
testMethod = m;
break;
}
}
if (testMethod == null) {
throw new Error("Test method not found");
}
Code_attribute ea = (Code_attribute) testMethod.attributes.get(Attribute.Code);
if (testMethod == null) {
throw new Error("Code attribute for test() method not found");
}
for (Instruction i : ea.getInstructions()) {
if (i.getMnemonic().equals("invokevirtual")) {
int cp_entry = i.getUnsignedShort(1);
CONSTANT_Methodref_info methRef =
(CONSTANT_Methodref_info) cf.constant_pool.get(cp_entry);
String type = methRef.getNameAndTypeInfo().getType();
String sig = selected.parameterTypes.bytecodeSigStr;
if (!type.contains(sig)) {
throw new Error(
"Unexpected type method call: "
+ type
+ ""
+ "\nfound: "
+ sig
+ "\n"
+ source.getCharContent(true));
}
break;
}
}
} catch (Exception e) {
e.printStackTrace();
throw new Error("error reading " + compiledTest + ": " + e);
}
}
@Override
public String visitTableSwitch(
Instruction instr, int default_, int low, int high, int[] offsets, Void p) {
StringBuilder sb = new StringBuilder();
sb.append(instr.getMnemonic()) // the opcode
.append(" (tableswitchinfo ")
.append(label(instr.getPC(), default_)) // the default target
.append(" (")
.append(low)
.append(" . ")
.append(high)
.append(") (");
for (int i = 0; i < high - low + 1; i++) {
sb.append(label(instr.getPC(), offsets[i])).append(' ');
}
sb.setCharAt(sb.length() - 1, ')');
return sb.append(")").toString();
}
@Override
public String visitLookupSwitch(
Instruction instr, int default_, int npairs, int[] matches, int[] offsets, Void p) {
StringBuilder sb = new StringBuilder();
sb.append(instr.getMnemonic()) // the opcode
.append(" (lookupswitchinfo ")
.append(label(instr.getPC(), default_)) // the default target
.append(' ')
.append(npairs) // the pair count
.append(" (");
for (int i = 0; i < npairs; i++) {
sb.append('(')
.append(matches[i])
.append(" . ")
.append(label(instr.getPC(), offsets[i]))
.append(") ");
}
sb.setCharAt(sb.length() - 1, ')');
return sb.append(")").toString();
}
void verifyBytecode(VarargsMethod selected) {
bytecodeCheckCount++;
File compiledTest = new File("Test.class");
try {
ClassFile cf = ClassFile.read(compiledTest);
Method testMethod = null;
for (Method m : cf.methods) {
if (m.getName(cf.constant_pool).equals("test")) {
testMethod = m;
break;
}
}
if (testMethod == null) {
throw new Error("Test method not found");
}
Code_attribute ea = (Code_attribute) testMethod.attributes.get(Attribute.Code);
if (testMethod == null) {
throw new Error("Code attribute for test() method not found");
}
for (Instruction i : ea.getInstructions()) {
if (i.getMnemonic().equals("invokevirtual")) {
int cp_entry = i.getUnsignedShort(1);
CONSTANT_Methodref_info methRef =
(CONSTANT_Methodref_info) cf.constant_pool.get(cp_entry);
String type = methRef.getNameAndTypeInfo().getType();
if (!type.contains(selected.varargsElement.bytecodeString)) {
throw new Error("Unexpected type method call: " + type);
}
break;
}
}
} catch (Exception e) {
e.printStackTrace();
throw new Error("error reading " + compiledTest + ": " + e);
}
}
@Override
public String visitArrayType(Instruction instr, Instruction.TypeKind tk, Void p) {
StringBuilder sb = new StringBuilder();
return sb.append(instr.getMnemonic()).append(' ').append(typeKind(tk)).toString();
}
@Override
public String visitNoOperands(Instruction instr, Void p) {
StringBuilder sb = new StringBuilder();
return sb.append(instr.getMnemonic()).toString();
}