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try to fetch reduced variables list if failed with the full

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This commit is contained in:
Egor.Ushakov
2015-09-16 15:18:59 +03:00
parent c2f8445867
commit 11a9881258
1 changed files with 28 additions and 20 deletions
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java/debugger/impl/src/com/intellij/debugger/jdi/LocalVariablesUtil.java
+28 -20
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@@ -24,7 +24,6 @@ import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.util.Computable;
import com.intellij.psi.*;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.util.ReflectionUtil;
import com.sun.jdi.*;
import org.jetbrains.annotations.NotNull;
@@ -129,8 +128,26 @@ public class LocalVariablesUtil {
return map;
}
// now try to fetch stack values
List<DecompiledLocalVariable> vars = collectVariablesFromBytecode(frameProxy);
StackFrame frame = frameProxy.getStackFrame();
int size = vars.size();
while (size > 0) {
try {
return fetchSlotValues(map, vars.subList(0, size), frame);
}
catch (Exception e) {
LOG.info(e);
}
size--; // try with the reduced list
}
return map;
}
private static Map<DecompiledLocalVariable, Value> fetchSlotValues(Map<DecompiledLocalVariable, Value> map,
List<DecompiledLocalVariable> vars,
StackFrame frame) throws Exception {
final Field frameIdField = frame.getClass().getDeclaredField("id");
frameIdField.setAccessible(true);
final Object frameId = frameIdField.get(frame);
@@ -147,27 +164,18 @@ public class LocalVariablesUtil {
ps = ourEnqueueMethod.invoke(null, vm, frame.thread(), frameId, slotInfoArray);
}
try {
final Object reply = ourWaitForReplyMethod.invoke(null, vm, ps);
final Field valuesField = reply.getClass().getDeclaredField("values");
valuesField.setAccessible(true);
final Value[] values = (Value[])valuesField.get(reply);
if (vars.size() != values.length) {
throw new InternalException("Wrong number of values returned from target VM");
}
int idx = 0;
for (DecompiledLocalVariable var : vars) {
map.put(var, values[idx++]);
}
return map;
final Object reply = ourWaitForReplyMethod.invoke(null, vm, ps);
final Field valuesField = reply.getClass().getDeclaredField("values");
valuesField.setAccessible(true);
final Value[] values = (Value[])valuesField.get(reply);
if (vars.size() != values.length) {
throw new InternalException("Wrong number of values returned from target VM");
}
catch (InvocationTargetException e) {
final Throwable target = e.getTargetException();
if (target instanceof Exception) {
throw (Exception)target;
}
throw e;
int idx = 0;
for (DecompiledLocalVariable var : vars) {
map.put(var, values[idx++]);
}
return map;
}
private static Object createSlotInfoArray(Collection<DecompiledLocalVariable> vars) throws Exception {