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First working prototype of debugger

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This commit is contained in:
konsoletyper 2014-07-30 17:46:41 +04:00
parent f6853eda80
commit c2eecaefca
8 changed files with 113 additions and 121 deletions
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10
teavm-chrome-rdp/src/main/java/org/teavm/chromerpd/ChromeRDPDebugger.java
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@ -107,7 +107,7 @@ public class ChromeRDPDebugger implements JavaScriptDebugger {
}
@Override
public JavaScriptBreakpoint createBreakpoint(JavaScriptLocation location) {
public synchronized JavaScriptBreakpoint createBreakpoint(JavaScriptLocation location) {
RDPBreakpoint breakpoint = new RDPBreakpoint(this, location);
breakpoints.add(breakpoint);
if (endpoint != null) {
@ -116,7 +116,7 @@ public class ChromeRDPDebugger implements JavaScriptDebugger {
return breakpoint;
}
void destroyBreakpoint(RDPBreakpoint breakpoint) {
synchronized void destroyBreakpoint(RDPBreakpoint breakpoint) {
breakpoints.remove(breakpoint);
if (endpoint != null) {
endpoint.destroyBreakpoint(breakpoint);
@ -140,4 +140,10 @@ public class ChromeRDPDebugger implements JavaScriptDebugger {
listener.scriptAdded(script);
}
}
void fireBreakpointStatusChanged(RDPBreakpoint breakpoint) {
for (JavaScriptDebuggerListener listener : listeners) {
listener.breakpointChanged(breakpoint);
}
}
}

62
teavm-chrome-rdp/src/main/java/org/teavm/chromerpd/ChromeRDPDebuggerEndpoint.java
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@ -18,7 +18,10 @@ package org.teavm.chromerpd;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.websocket.*;
import javax.websocket.OnClose;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;
import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.map.ObjectMapper;
@ -27,7 +30,9 @@ import org.teavm.chromerpd.data.LocationDTO;
import org.teavm.chromerpd.data.Message;
import org.teavm.chromerpd.data.Response;
import org.teavm.chromerpd.messages.*;
import org.teavm.debugging.*;
import org.teavm.debugging.JavaScriptBreakpoint;
import org.teavm.debugging.JavaScriptCallFrame;
import org.teavm.debugging.JavaScriptLocation;
/**
*
@ -39,9 +44,9 @@ public class ChromeRDPDebuggerEndpoint {
private RDPCallFrame[] callStack = new RDPCallFrame[0];
private Map<String, String> scripts = new HashMap<>();
private Map<String, String> scriptIds = new HashMap<>();
private boolean suspended;
private boolean suspended = false;
private ObjectMapper mapper = new ObjectMapper();
private Map<Integer, Deferred> deferredResponses = new HashMap<>();
private Map<Integer, ResponseHandler> responseHandlers = new HashMap<>();
private int messageIdGenerator;
boolean closed;
private ChromeRDPDebugger debugger;
@ -70,7 +75,7 @@ public class ChromeRDPDebuggerEndpoint {
JsonNode jsonMessage = mapper.readTree(messageText);
if (jsonMessage.has("result")) {
Response response = mapper.reader(Response.class).readValue(jsonMessage);
deferredResponses.remove(response.getId()).set(response.getResult());
responseHandlers.remove(response.getId()).received(response.getResult());
} else {
Message message = mapper.reader(Message.class).readValue(messageText);
switch (message.getMethod()) {
@ -91,13 +96,14 @@ public class ChromeRDPDebuggerEndpoint {
return mapper.reader(type).readValue(node);
}
private void firePaused(SuspendedNotification params) {
private synchronized void firePaused(SuspendedNotification params) {
suspended = true;
CallFrameDTO[] callFrameDTOs = params.getCallFrames();
RDPCallFrame[] callFrames = new RDPCallFrame[callFrameDTOs.length];
for (int i = 0; i < callFrames.length; ++i) {
callFrames[i] = map(callFrameDTOs[i]);
RDPCallFrame[] callStack = new RDPCallFrame[callFrameDTOs.length];
for (int i = 0; i < callStack.length; ++i) {
callStack[i] = map(callFrameDTOs[i]);
}
this.callStack = callStack;
debugger.firePaused();
}
@ -117,12 +123,13 @@ public class ChromeRDPDebuggerEndpoint {
return dto;
}
private void fireResumed() {
private synchronized void fireResumed() {
suspended = false;
callStack = null;
debugger.fireResumed();
}
private void scriptParsed(ScriptParsedNotification params) {
private synchronized void scriptParsed(ScriptParsedNotification params) {
if (scripts.containsKey(params.getScriptId())) {
return;
}
@ -188,7 +195,7 @@ public class ChromeRDPDebuggerEndpoint {
sendMessage(message);
}
public void continueToLocation(JavaScriptLocation location) {
public synchronized void continueToLocation(JavaScriptLocation location) {
Message message = new Message();
message.setMethod("Debugger.continueToLocation");
ContinueToLocationCommand params = new ContinueToLocationCommand();
@ -197,35 +204,34 @@ public class ChromeRDPDebuggerEndpoint {
sendMessage(message);
}
public boolean isSuspended() {
public synchronized boolean isSuspended() {
return suspended;
}
public JavaScriptCallFrame[] getCallStack() {
public synchronized JavaScriptCallFrame[] getCallStack() {
return callStack;
}
public JavaScriptBreakpoint getCurrentBreakpoint() {
public synchronized JavaScriptBreakpoint getCurrentBreakpoint() {
return null;
}
public void updateBreakpoint(RDPBreakpoint breakpoint) {
public synchronized void updateBreakpoint(final RDPBreakpoint breakpoint) {
Message message = new Message();
message.setId(messageIdGenerator++);
message.setId(++messageIdGenerator);
message.setMethod("Debugger.setBreakpoint");
SetBreakpointCommand params = new SetBreakpointCommand();
params.setLocation(unmap(breakpoint.getLocation()));
message.setParams(mapper.valueToTree(params));
Deferred deferred = new Deferred();
deferredResponses.put(message.getId(), deferred);
ResponseHandler handler = new ResponseHandler() {
@Override public void received(JsonNode node) throws IOException {
SetBreakpointResponse response = mapper.reader(SetBreakpointResponse.class).readValue(node);
breakpoint.chromeId = response.getBreakpointId();
debugger.fireBreakpointStatusChanged(breakpoint);
}
};
responseHandlers.put(message.getId(), handler);
sendMessage(message);
try {
SetBreakpointResponse response = mapper.reader(SetBreakpointResponse.class)
.readValue((JsonNode)deferred.get());
breakpoint.chromeId = response.getBreakpointId();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
void destroyBreakpoint(RDPBreakpoint breakpoint) {
@ -238,4 +244,8 @@ public class ChromeRDPDebuggerEndpoint {
sendMessage(message);
}
}
interface ResponseHandler {
void received(JsonNode node) throws IOException;
}
}

48
teavm-chrome-rdp/src/main/java/org/teavm/chromerpd/Deferred.java
View File

@ -1,48 +0,0 @@
/*
* Copyright 2014 Alexey Andreev.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.teavm.chromerpd;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicBoolean;
/**
*
* @author Alexey Andreev
*/
public class Deferred {
private volatile Object calculatedValue;
private AtomicBoolean calculated = new AtomicBoolean();
private CountDownLatch latch = new CountDownLatch(1);
public Object get() {
while (latch.getCount() > 0) {
try {
latch.await();
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted while awaiting for value");
}
}
return calculatedValue;
}
public void set(Object value) {
if (!calculated.compareAndSet(false, true)) {
throw new IllegalStateException("Future already calculated");
}
calculatedValue = value;
latch.countDown();
}
}

5
teavm-chrome-rdp/src/main/java/org/teavm/chromerpd/RDPBreakpoint.java
View File

@ -23,7 +23,7 @@ import org.teavm.debugging.JavaScriptLocation;
* @author Alexey Andreev
*/
public class RDPBreakpoint implements JavaScriptBreakpoint {
String chromeId;
volatile String chromeId;
private ChromeRDPDebugger debugger;
private JavaScriptLocation location;
@ -41,12 +41,13 @@ public class RDPBreakpoint implements JavaScriptBreakpoint {
public void destroy() {
if (debugger != null) {
debugger.destroyBreakpoint(this);
chromeId = null;
debugger = null;
}
}
@Override
public boolean isValid() {
return false;
return chromeId != null;
}
}

2
teavm-chrome-rdp/src/main/js/chrome/manifest.json
View File

@ -3,7 +3,7 @@
"name": "TeaVM debugger agent",
"description": "TeaVM debugger agent, that sends RDP commands over WebSocket",
"version": "1.0",
"version": "0.2",
"permissions" : ["debugger", "activeTab", "tabs"],

11
teavm-core/src/main/java/org/teavm/debugging/Breakpoint.java
View File

@ -37,13 +37,8 @@ public class Breakpoint {
return location;
}
public void destroy() {
for (JavaScriptBreakpoint jsBreakpoint : jsBreakpoints) {
jsBreakpoint.destroy();
debugger.breakpointMap.remove(jsBreakpoint);
}
debugger.breakpoints.remove(this);
jsBreakpoints.clear();
public synchronized void destroy() {
debugger.destroyBreakpoint(this);
debugger = null;
}
@ -51,7 +46,7 @@ public class Breakpoint {
return valid;
}
public boolean isDestroyed() {
public synchronized boolean isDestroyed() {
return debugger == null;
}

5
teavm-core/src/main/java/org/teavm/debugging/DebugInformation.java
View File

@ -61,8 +61,9 @@ public class DebugInformation {
int end = description.generatedLocationStart[line + 1];
GeneratedLocation[] resultArray = new GeneratedLocation[(end - start) / 2];
for (int i = 0; i < resultArray.length; ++i) {
resultArray[i] = new GeneratedLocation(description.generatedLocationData[i * 2],
description.generatedLocationData[i * 2 + 1]);
int genLine = description.generatedLocationData[start++];
int genColumn = description.generatedLocationData[start++];
resultArray[i] = new GeneratedLocation(genLine, genColumn);
}
return Arrays.asList(resultArray);
}

91
teavm-core/src/main/java/org/teavm/debugging/Debugger.java
View File

@ -79,7 +79,7 @@ public class Debugger {
continueToLocation(location.getFileName(), location.getLine());
}
public void continueToLocation(String fileName, int line) {
public synchronized void continueToLocation(String fileName, int line) {
if (!javaScriptDebugger.isSuspended()) {
return;
}
@ -105,7 +105,7 @@ public class Debugger {
return createBreakpoint(new SourceLocation(file, line));
}
public Breakpoint createBreakpoint(SourceLocation location) {
public synchronized Breakpoint createBreakpoint(SourceLocation location) {
Breakpoint breakpoint = new Breakpoint(this, location);
breakpoints.add(breakpoint);
updateInternalBreakpoints(breakpoint);
@ -113,8 +113,8 @@ public class Debugger {
return breakpoint;
}
public Set<Breakpoint> getBreakpoints() {
return Collections.unmodifiableSet(breakpoints);
public synchronized Set<Breakpoint> getBreakpoints() {
return new HashSet<>(breakpoints);
}
void updateInternalBreakpoints(Breakpoint breakpoint) {
@ -122,6 +122,7 @@ public class Debugger {
breakpointMap.remove(jsBreakpoint);
jsBreakpoint.destroy();
}
breakpoint.jsBreakpoints.clear();
SourceLocation location = breakpoint.getLocation();
for (DebugInformation debugInformation : debugInformationBySource(location.getFileName())) {
Collection<GeneratedLocation> locations = debugInformation.getGeneratedLocations(location);
@ -130,6 +131,7 @@ public class Debugger {
genLocation.getLine(), genLocation.getColumn());
JavaScriptBreakpoint jsBreakpoint = javaScriptDebugger.createBreakpoint(jsLocation);
breakpoint.jsBreakpoints.add(jsBreakpoint);
breakpointMap.put(jsBreakpoint, breakpoint);
}
}
}
@ -151,8 +153,8 @@ public class Debugger {
}
}
public CallFrame[] getCallStack() {
if (isSuspended()) {
public synchronized CallFrame[] getCallStack() {
if (!isSuspended()) {
return null;
}
if (callStack == null) {
@ -182,7 +184,7 @@ public class Debugger {
return callStack.clone();
}
private void addScript(String name) {
private synchronized void addScript(String name) {
if (debugInformationMap.containsKey(name)) {
return;
}
@ -210,20 +212,60 @@ public class Debugger {
return javaScriptDebugger.isAttached();
}
synchronized void destroyBreakpoint(Breakpoint breakpoint) {
for (JavaScriptBreakpoint jsBreakpoint : breakpoint.jsBreakpoints) {
jsBreakpoint.destroy();
breakpointMap.remove(jsBreakpoint);
}
breakpoint.jsBreakpoints.clear();
breakpoints.remove(this);
}
private synchronized void fireResumed() {
for (JavaScriptBreakpoint jsBreakpoint : temporaryJsBreakpoints) {
jsBreakpoint.destroy();
}
temporaryJsBreakpoints.clear();
for (DebuggerListener listener : listeners) {
listener.resumed();
}
}
private synchronized void fireAttached() {
for (Breakpoint breakpoint : breakpoints) {
updateInternalBreakpoints(breakpoint);
updateBreakpointStatus(breakpoint, false);
}
for (DebuggerListener listener : listeners) {
listener.attached();
}
}
private synchronized void fireDetached() {
for (Breakpoint breakpoint : breakpoints) {
updateBreakpointStatus(breakpoint, false);
}
for (DebuggerListener listener : listeners) {
listener.detached();
}
}
private synchronized void fireBreakpointChanged(JavaScriptBreakpoint jsBreakpoint) {
Breakpoint breakpoint = breakpointMap.get(jsBreakpoint);
if (breakpoint != null) {
updateBreakpointStatus(breakpoint, true);
}
}
private JavaScriptDebuggerListener javaScriptListener = new JavaScriptDebuggerListener() {
@Override
public void resumed() {
for (JavaScriptBreakpoint jsBreakpoint : temporaryJsBreakpoints) {
jsBreakpoint.destroy();
}
temporaryJsBreakpoints.clear();
for (DebuggerListener listener : listeners) {
listener.resumed();
}
fireResumed();
}
@Override
public void paused() {
callStack = null;
for (DebuggerListener listener : listeners) {
listener.paused();
}
@ -236,32 +278,17 @@ public class Debugger {
@Override
public void attached() {
for (Breakpoint breakpoint : breakpoints) {
updateInternalBreakpoints(breakpoint);
updateBreakpointStatus(breakpoint, false);
}
for (DebuggerListener listener : listeners) {
listener.attached();
}
fireAttached();
}
@Override
public void detached() {
for (Breakpoint breakpoint : breakpoints) {
updateBreakpointStatus(breakpoint, true);
}
for (DebuggerListener listener : listeners) {
listener.detached();
}
fireDetached();
}
@Override
public void breakpointChanged(JavaScriptBreakpoint jsBreakpoint) {
Breakpoint breakpoint = breakpointMap.get(jsBreakpoint);
if (breakpoint != null) {
updateInternalBreakpoints(breakpoint);
updateBreakpointStatus(breakpoint, false);
}
fireBreakpointChanged(jsBreakpoint);
}
};
}