private String[] getParameterNamesForMethod() {
if (collector == null) {
return Paranamer.EMPTY_NAMES;
}
if (!collector.isDebugInfoPresent()) {
if (throwExceptionIfMissing) {
throw new ParameterNamesNotFoundException("Parameter names not found for " + methodName);
} else {
return Paranamer.EMPTY_NAMES;
}
}
return collector.getResult().split(COMMA);
}
private int readMethod(TypeCollector classVisitor, char[] c, int u) {
int v;
int w;
int j;
String attrName;
int k;
int access = readUnsignedShort(u);
String name = readUTF8(u + 2, c);
String desc = readUTF8(u + 4, c);
v = 0;
w = 0;
// looks for Code and Exceptions attributes
j = readUnsignedShort(u + 6);
u += 8;
for (; j > 0; --j) {
attrName = readUTF8(u, c);
int attrSize = readInt(u + 2);
u += 6;
// tests are sorted in decreasing frequency order
// (based on frequencies observed on typical classes)
if (attrName.equals("Code")) {
v = u;
}
u += attrSize;
}
// reads declared exceptions
if (w == 0) {
} else {
w += 2;
for (j = 0; j < readUnsignedShort(w); ++j) {
w += 2;
}
}
// visits the method's code, if any
MethodCollector mv = classVisitor.visitMethod(access, name, desc);
if (mv != null && v != 0) {
int codeLength = readInt(v + 4);
v += 8;
int codeStart = v;
int codeEnd = v + codeLength;
v = codeEnd;
j = readUnsignedShort(v);
v += 2;
for (; j > 0; --j) {
v += 8;
}
// parses the local variable, line number tables, and code
// attributes
int varTable = 0;
int varTypeTable = 0;
j = readUnsignedShort(v);
v += 2;
for (; j > 0; --j) {
attrName = readUTF8(v, c);
if (attrName.equals("LocalVariableTable")) {
varTable = v + 6;
} else if (attrName.equals("LocalVariableTypeTable")) {
varTypeTable = v + 6;
}
v += 6 + readInt(v + 2);
}
v = codeStart;
// visits the local variable tables
if (varTable != 0) {
if (varTypeTable != 0) {
k = readUnsignedShort(varTypeTable) * 3;
w = varTypeTable + 2;
int[] typeTable = new int[k];
while (k > 0) {
typeTable[--k] = w + 6; // signature
typeTable[--k] = readUnsignedShort(w + 8); // index
typeTable[--k] = readUnsignedShort(w); // start
w += 10;
}
}
k = readUnsignedShort(varTable);
w = varTable + 2;
for (; k > 0; --k) {
int index = readUnsignedShort(w + 8);
mv.visitLocalVariable(readUTF8(w + 4, c), index);
w += 10;
}
}
}
return u;
}
