Examples with DebugException com.oracle.truffle.api.debug.DebugException used on opensource projects

Example 1 with DebugException

use of com.oracle.truffle.api.debug.DebugException in project graal by oracle.

the class InspectorRuntime method evaluate.

@Override
public Params evaluate(String expression, String objectGroup, boolean includeCommandLineAPI, boolean silent, int contextId, boolean returnByValue, boolean generatePreview, boolean awaitPromise) throws CommandProcessException {
    if (expression == null) {
        throw new CommandProcessException("An expression required.");
    }
    JSONObject json = new JSONObject();
    DebuggerSuspendedInfo suspendedInfo = context.getSuspendedInfo();
    if (suspendedInfo != null) {
        try {
            context.executeInSuspendThread(new SuspendThreadExecutable<Void>() {

                @Override
                public Void executeCommand() throws CommandProcessException {
                    suspendedInfo.lastEvaluatedValue.set(null);
                    LanguageInfo languageInfo = context.getSuspendedInfo().getSuspendedEvent().getTopStackFrame().getLanguage();
                    if (languageInfo == null || !languageInfo.isInteractive()) {
                        fillExceptionDetails(json, InspectorDebugger.getEvalNonInteractiveMessage());
                        return null;
                    }
                    JSONObject result;
                    DebugValue value = null;
                    if (suspendedInfo.getCallFrames().length > 0) {
                        value = InspectorDebugger.getVarValue(expression, suspendedInfo.getCallFrames()[0]);
                    }
                    if (value == null) {
                        value = suspendedInfo.getSuspendedEvent().getTopStackFrame().eval(expression);
                        suspendedInfo.refreshFrames();
                    }
                    if (returnByValue) {
                        result = RemoteObject.createJSONResultValue(value, context.areToStringSideEffectsAllowed(), context.getErr());
                    } else {
                        RemoteObject ro = new RemoteObject(value, generatePreview, context);
                        context.getRemoteObjectsHandler().register(ro, objectGroup);
                        result = ro.toJSON();
                        if (!ro.isReplicable()) {
                            suspendedInfo.lastEvaluatedValue.set(Pair.create(value, ro.getRawValue()));
                        }
                    }
                    json.put("result", result);
                    return null;
                }

                @Override
                public Void processException(DebugException ex) {
                    fillExceptionDetails(json, ex);
                    return null;
                }
            });
        } catch (NoSuspendedThreadException ex) {
            fillExceptionDetails(json, ex.getLocalizedMessage());
        }
    } else {
        fillExceptionDetails(json, "<Not suspended>");
    }
    return new Params(json);
}

Example 2 with DebugException

use of com.oracle.truffle.api.debug.DebugException in project graal by oracle.

the class InspectorRuntime method callFunctionOn.

@Override
public Params callFunctionOn(String objectId, String functionDeclaration, JSONArray arguments, boolean silent, boolean returnByValue, boolean generatePreview, boolean awaitPromise, int executionContextId, String objectGroup) throws CommandProcessException {
    if (objectId == null) {
        throw new CommandProcessException("An objectId required.");
    }
    RemoteObject object = context.getRemoteObjectsHandler().getRemote(objectId);
    JSONObject json = new JSONObject();
    if (object != null) {
        DebugValue value = object.getDebugValue();
        DebugScope scope = object.getScope();
        RemoteObject.IndexRange indexRange = object.getIndexRange();
        DebuggerSuspendedInfo suspendedInfo = context.getSuspendedInfo();
        if (suspendedInfo != null) {
            try {
                String functionTrimmed = functionDeclaration.trim();
                String functionNoWS = eliminateWhiteSpaces(functionDeclaration);
                context.executeInSuspendThread(new SuspendThreadExecutable<Void>() {

                    @Override
                    public Void executeCommand() throws CommandProcessException {
                        JSONObject result;
                        if (functionNoWS.startsWith(FUNCTION_COMPLETION)) {
                            result = createCodecompletion(value, scope, context, true);
                        } else if (functionNoWS.equals(FUNCTION_SET_PROPERTY)) {
                            // Set of an array element, or object property
                            if (arguments == null || arguments.length() < 2) {
                                throw new CommandProcessException("Insufficient number of arguments: " + (arguments != null ? arguments.length() : 0) + ", expecting: 2");
                            }
                            Object property = ((JSONObject) arguments.get(0)).get("value");
                            CallArgument newValue = CallArgument.get((JSONObject) arguments.get(1));
                            setPropertyValue(value, scope, property, object.getTypeMark(), newValue, suspendedInfo.lastEvaluatedValue.getAndSet(null));
                            result = new JSONObject();
                        } else if (functionNoWS.equals(FUNCTION_GET_ARRAY_NUM_PROPS)) {
                            if (!value.isArray()) {
                                throw new CommandProcessException("Expecting an Array the function is called on.");
                            }
                            JSONArray arr = new JSONArray();
                            if (indexRange != null && !indexRange.isNamed()) {
                                List<DebugValue> array = value.getArray();
                                if (indexRange.start() < 0 || indexRange.end() > array.size()) {
                                    throw new CommandProcessException("Array range out of bounds.");
                                }
                                arr.put(indexRange.end() - indexRange.start());
                            } else {
                                arr.put(value.getArray().size());
                            }
                            Collection<DebugValue> props = value.getProperties();
                            if (props == null) {
                                arr.put(0);
                            } else if (indexRange != null && indexRange.isNamed()) {
                                ArrayList<DebugValue> list = new ArrayList<>(props);
                                if (indexRange.start() < 0 || indexRange.end() > list.size()) {
                                    throw new CommandProcessException("Named range out of bounds.");
                                }
                                arr.put(indexRange.end() - indexRange.start());
                            } else if (LanguageChecks.isJS(value.getOriginalLanguage())) {
                                // +1 for __proto__
                                arr.put(props.size() + 1);
                            } else {
                                arr.put(props.size());
                            }
                            result = new JSONObject();
                            result.put("value", arr);
                        } else if (functionNoWS.equals(FUNCTION_GET_BUFFER_NUM_PROPS)) {
                            if (!value.isArray()) {
                                throw new CommandProcessException("Expecting a Buffer the function is called on.");
                            }
                            JSONArray arr = new JSONArray();
                            if (indexRange != null && !indexRange.isNamed()) {
                                List<DebugValue> array = value.getArray();
                                if (indexRange.start() < 0 || indexRange.end() > array.size()) {
                                    throw new CommandProcessException("Array range out of bounds.");
                                }
                                arr.put(indexRange.end() - indexRange.start());
                            } else {
                                arr.put(value.getArray().size());
                            }
                            if (LanguageChecks.isJS(value.getOriginalLanguage())) {
                                // +1 for __proto__
                                arr.put(1);
                            } else {
                                arr.put(0);
                            }
                            result = new JSONObject();
                            result.put("value", arr);
                        } else if (functionNoWS.equals(FUNCTION_GET_COLLECTION_NUM_PROPS)) {
                            Collection<DebugValue> props = value.getProperties();
                            if (props == null) {
                                throw new CommandProcessException("Expecting an Object the function is called on.");
                            }
                            JSONArray arr = new JSONArray();
                            arr.put(0);
                            if (indexRange != null && indexRange.isNamed()) {
                                ArrayList<DebugValue> list = new ArrayList<>(props);
                                if (indexRange.start() < 0 || indexRange.end() > list.size()) {
                                    throw new CommandProcessException("Named range out of bounds.");
                                }
                                arr.put(indexRange.end() - indexRange.start());
                            } else if (LanguageChecks.isJS(value.getOriginalLanguage())) {
                                // +1 for __proto__
                                arr.put(props.size() + 1);
                            } else {
                                arr.put(props.size());
                            }
                            result = new JSONObject();
                            result.put("value", arr);
                        } else if (FUNCTION_GETTER_PATTERN1.matcher(functionTrimmed).matches()) {
                            if (arguments == null || arguments.length() < 1) {
                                throw new CommandProcessException("Expecting an argument to invokeGetter function.");
                            }
                            String propertyNames = ((JSONObject) arguments.get(0)).getString("value");
                            JSONArray properties = new JSONArray(propertyNames);
                            DebugValue v = value;
                            for (int i = 0; i < properties.length() && (i == 0 || v != null); i++) {
                                String propertyName = properties.getString(i);
                                if (v != null) {
                                    v = v.getProperty(propertyName);
                                } else {
                                    v = scope.getDeclaredValue(propertyName);
                                }
                            }
                            result = asResult(v);
                        } else if (FUNCTION_GETTER_PATTERN2.matcher(functionTrimmed).matches()) {
                            if (arguments == null || arguments.length() < 1) {
                                throw new CommandProcessException("Expecting an argument to invokeGetter function.");
                            }
                            String propertyName = ((JSONObject) arguments.get(0)).getString("value");
                            DebugValue p;
                            if (value != null) {
                                p = value.getProperty(propertyName);
                            } else {
                                p = scope.getDeclaredValue(propertyName);
                            }
                            result = asResult(p);
                        } else if (FUNCTION_GET_INDEXED_VARS_PATTERN.matcher(functionTrimmed).matches()) {
                            if (!value.isArray()) {
                                throw new CommandProcessException("Expecting an Array the function is called on.");
                            }
                            if (arguments == null || arguments.length() < 2) {
                                throw new CommandProcessException("Insufficient number of arguments: " + (arguments != null ? arguments.length() : 0) + ", expecting: 2");
                            }
                            int start = ((JSONObject) arguments.get(0)).getInt("value");
                            int count = ((JSONObject) arguments.get(1)).getInt("value");
                            RemoteObject ro = new RemoteObject(value, true, generatePreview, context, new RemoteObject.IndexRange(start, start + count, false));
                            context.getRemoteObjectsHandler().register(ro, objectGroup);
                            result = ro.toJSON();
                        } else if (FUNCTION_GET_NAMED_VARS_PATTERN.matcher(functionTrimmed).matches()) {
                            Collection<DebugValue> props = value.getProperties();
                            if (props == null) {
                                throw new CommandProcessException("Expecting an Object the function is called on.");
                            }
                            if (arguments == null || arguments.length() < 2) {
                                throw new CommandProcessException("Insufficient number of arguments: " + (arguments != null ? arguments.length() : 0) + ", expecting: 2");
                            }
                            int start = ((JSONObject) arguments.get(0)).getInt("value");
                            int count = ((JSONObject) arguments.get(1)).getInt("value");
                            RemoteObject ro = new RemoteObject(value, true, generatePreview, context, new RemoteObject.IndexRange(start, start + count, true));
                            context.getRemoteObjectsHandler().register(ro, objectGroup);
                            result = ro.toJSON();
                        } else {
                            // Process CustomPreview body:
                            if (arguments != null && arguments.length() > 0) {
                                Object arg0 = arguments.get(0);
                                if (arg0 instanceof JSONObject) {
                                    JSONObject argObj = (JSONObject) arg0;
                                    Object id = argObj.opt("objectId");
                                    if (id instanceof String) {
                                        DebugValue body = context.getRemoteObjectsHandler().getCustomPreviewBody((String) id);
                                        if (body != null) {
                                            // The config is not provided as an argument.
                                            // Get the cached config:
                                            DebugValue config = context.getRemoteObjectsHandler().getCustomPreviewConfig(objectId);
                                            DebugValue bodyML = (config != null) ? body.execute(object.getDebugValue(), config) : body.execute(object.getDebugValue());
                                            Object bodyjson = CustomPreview.value2JSON(bodyML, context);
                                            result = new JSONObject();
                                            result.put("type", "object");
                                            result.put("value", bodyjson);
                                            json.put("result", result);
                                            return null;
                                        }
                                    }
                                }
                            }
                            StringBuilder code = new StringBuilder();
                            code.append("(").append(functionTrimmed).append(").apply(").append(value != null ? value.getName() : "null");
                            if (arguments != null) {
                                code.append(",[");
                                for (int i = 0; i < arguments.length(); i++) {
                                    JSONObject arg = arguments.getJSONObject(i);
                                    if (i > 0) {
                                        code.append(",");
                                    }
                                    Object id = arg.opt("objectId");
                                    if (id instanceof String) {
                                        RemoteObject remoteArg = context.getRemoteObjectsHandler().getRemote((String) id);
                                        if (remoteArg == null) {
                                            throw new CommandProcessException("Cannot resolve argument by its objectId: " + id);
                                        }
                                        code.append(remoteArg.getDebugValue().getName());
                                    } else {
                                        code.append(JSONObject.valueToString(arg.get("value")));
                                    }
                                }
                                code.append("]");
                            }
                            code.append(")");
                            DebugValue eval = suspendedInfo.getSuspendedEvent().getTopStackFrame().eval(code.toString());
                            suspendedInfo.refreshFrames();
                            result = asResult(eval);
                        }
                        json.put("result", result);
                        return null;
                    }

                    @Override
                    public Void processException(DebugException ex) {
                        fillExceptionDetails(json, ex);
                        return null;
                    }

                    private JSONObject asResult(DebugValue v) {
                        JSONObject result;
                        if (v == null) {
                            LanguageInfo language = suspendedInfo.getSuspendedEvent().getTopStackFrame().getLanguage();
                            result = RemoteObject.createNullObject(context.getEnv(), language).toJSON();
                        } else {
                            if (!returnByValue) {
                                RemoteObject ro = new RemoteObject(v, true, generatePreview, context);
                                context.getRemoteObjectsHandler().register(ro, objectGroup);
                                result = ro.toJSON();
                            } else {
                                result = RemoteObject.createJSONResultValue(v, context.areToStringSideEffectsAllowed(), context.getErr());
                            }
                        }
                        return result;
                    }
                });
            } catch (NoSuspendedThreadException ex) {
                json.put("result", new JSONObject());
            }
        }
    }
    return new Params(json);
}

Example 3 with DebugException

use of com.oracle.truffle.api.debug.DebugException in project graal by oracle.

the class InspectorDebugger method createCallFrames.

private CallFrame[] createCallFrames(Iterable<DebugStackFrame> frames, SuspendAnchor topAnchor, DebugValue returnValue, CallFrame[] oldFrames) {
    List<CallFrame> cfs = new ArrayList<>();
    int depth = 0;
    int depthAll = -1;
    if (scriptsHandler == null || debuggerSession == null) {
        return new CallFrame[0];
    }
    for (DebugStackFrame frame : frames) {
        depthAll++;
        SourceSection sourceSection = frame.getSourceSection();
        if (sourceSection == null || !sourceSection.isAvailable()) {
            continue;
        }
        if (!context.isInspectInternal() && frame.isInternal()) {
            continue;
        }
        Source source = sourceSection.getSource();
        if (!context.isInspectInternal() && source.isInternal()) {
            // should not be, double-check
            continue;
        }
        Script script = scriptsHandler.assureLoaded(source);
        List<Scope> scopes = new ArrayList<>();
        DebugScope dscope;
        try {
            dscope = frame.getScope();
        } catch (DebugException ex) {
            PrintWriter err = context.getErr();
            if (err != null) {
                err.println("getScope() has caused " + ex);
                ex.printStackTrace(err);
            }
            dscope = null;
        }
        String scopeType = "block";
        boolean wasFunction = false;
        SourceSection functionSourceSection = null;
        if (dscope == null) {
            functionSourceSection = sourceSection;
        }
        Scope[] oldScopes;
        if (oldFrames != null && oldFrames.length > depth) {
            oldScopes = oldFrames[depth].getScopeChain();
        } else {
            oldScopes = null;
        }
        List<DebugValue> receivers = new ArrayList<>();
        // index of "this" receiver in `receivers` array
        int thisIndex = -1;
        // index of language implementation scope
        int scopeIndex = 0;
        TriState isJS = TriState.UNDEFINED;
        while (dscope != null) {
            if (wasFunction) {
                scopeType = "closure";
            } else if (dscope.isFunctionScope()) {
                scopeType = "local";
                functionSourceSection = dscope.getSourceSection();
                wasFunction = true;
            }
            boolean scopeAdded = addScope(scopes, dscope, scopeType, scopeIndex, oldScopes);
            if (scopeAdded) {
                DebugValue receiver = dscope.getReceiver();
                receivers.add(receiver);
                if (receiver != null) {
                    if (thisIndex == -1 && "this".equals(receiver.getName())) {
                        // There is one receiver named "this".
                        thisIndex = scopes.size() - 1;
                    } else {
                        // we'll add the receiver(s) to scope variables instead.
                        if (TriState.UNDEFINED == isJS) {
                            isJS = TriState.valueOf(LanguageChecks.isJS(receiver.getOriginalLanguage()));
                        }
                        // therefore we need to keep the index for JS.
                        if (TriState.FALSE == isJS) {
                            thisIndex = -2;
                        }
                    }
                }
            }
            dscope = getParent(dscope);
            scopeIndex++;
        }
        try {
            dscope = debuggerSession.getTopScope(source.getLanguage());
        } catch (DebugException ex) {
            PrintWriter err = context.getErr();
            if (err != null) {
                err.println("getTopScope() has caused " + ex);
                ex.printStackTrace(err);
            }
        }
        while (dscope != null) {
            addScope(scopes, dscope, "global", scopeIndex, oldScopes);
            dscope = getParent(dscope);
            scopeIndex++;
        }
        RemoteObject returnObj = null;
        if (depthAll == 0 && returnValue != null) {
            returnObj = context.getRemoteObjectsHandler().getRemote(returnValue);
        }
        RemoteObject thisObj;
        if (thisIndex < -1) {
            for (int i = 0; i < receivers.size(); i++) {
                DebugValue receiver = receivers.get(i);
                if (receiver != null) {
                    scopes.get(i).getObject().setScopeReceiver(receiver);
                }
            }
            thisObj = null;
        } else if (thisIndex == -1) {
            // no added scope, no receiver
            thisObj = null;
        } else {
            thisObj = context.getRemoteObjectsHandler().getRemote(receivers.get(thisIndex));
        }
        SuspendAnchor anchor = (depthAll == 0) ? topAnchor : SuspendAnchor.BEFORE;
        CallFrame cf = new CallFrame(frame, depth++, script, sourceSection, anchor, functionSourceSection, thisObj, returnObj, scopes.toArray(new Scope[scopes.size()]));
        cfs.add(cf);
    }
    return cfs.toArray(new CallFrame[cfs.size()]);
}

Example 4 with DebugException

use of com.oracle.truffle.api.debug.DebugException in project graal by oracle.

the class InspectorDebugger method setVariableValue.

@Override
public void setVariableValue(int scopeNumber, String variableName, CallArgument newValue, String callFrameId) throws CommandProcessException {
    if (variableName == null) {
        throw new CommandProcessException("A variableName required.");
    }
    if (newValue == null) {
        throw new CommandProcessException("A newValue required.");
    }
    if (callFrameId == null) {
        throw new CommandProcessException("A callFrameId required.");
    }
    int frameId;
    try {
        frameId = Integer.parseInt(callFrameId);
    } catch (NumberFormatException ex) {
        throw new CommandProcessException(ex.getLocalizedMessage());
    }
    try {
        context.executeInSuspendThread(new SuspendThreadExecutable<Void>() {

            @Override
            public Void executeCommand() throws CommandProcessException {
                DebuggerSuspendedInfo susp = suspendedInfo;
                if (susp != null) {
                    if (frameId >= susp.getCallFrames().length) {
                        throw new CommandProcessException("Too big callFrameId: " + frameId);
                    }
                    CallFrame cf = susp.getCallFrames()[frameId];
                    Scope[] scopeChain = cf.getScopeChain();
                    if (scopeNumber < 0 || scopeNumber >= scopeChain.length) {
                        throw new CommandProcessException("Wrong scopeNumber: " + scopeNumber + ", there are " + scopeChain.length + " scopes.");
                    }
                    Scope scope = scopeChain[scopeNumber];
                    DebugScope debugScope = scope.getObject().getScope();
                    DebugValue debugValue = debugScope.getDeclaredValue(variableName);
                    Pair<DebugValue, Object> evaluatedValue = susp.lastEvaluatedValue.getAndSet(null);
                    try {
                        if (evaluatedValue != null && Objects.equals(evaluatedValue.getRight(), newValue.getPrimitiveValue())) {
                            debugValue.set(evaluatedValue.getLeft());
                        } else {
                            context.setValue(debugValue, newValue);
                        }
                    } catch (DebugException ex) {
                        PrintWriter err = context.getErr();
                        if (err != null) {
                            err.println("set of " + debugValue.getName() + " has caused " + ex);
                            ex.printStackTrace(err);
                        }
                        throw ex;
                    }
                }
                return null;
            }

            @Override
            public Void processException(DebugException dex) {
                return null;
            }
        });
    } catch (NoSuspendedThreadException ex) {
        throw new CommandProcessException(ex.getLocalizedMessage());
    }
}

Example 5 with DebugException

use of com.oracle.truffle.api.debug.DebugException in project graal by oracle.

the class InspectorExecutionContext method executeInSuspendThread.

<T> T executeInSuspendThread(SuspendThreadExecutable<T> executable) throws NoSuspendedThreadException, CommandProcessException {
    if (synchronous) {
        try {
            return executable.executeCommand();
        } catch (ThreadDeath td) {
            throw td;
        } catch (DebugException dex) {
            return executable.processException(dex);
        }
    }
    CompletableFuture<T> cf = new CompletableFuture<>();
    suspendThreadExecutor.execute(new CancellableRunnable() {

        @Override
        public void run() {
            T params = null;
            try {
                params = executable.executeCommand();
                cf.complete(params);
            } catch (ThreadDeath td) {
                cf.completeExceptionally(td);
                throw td;
            } catch (DebugException dex) {
                cf.complete(executable.processException(dex));
            } catch (Throwable t) {
                cf.completeExceptionally(t);
            }
        }

        @Override
        public void cancel() {
            cf.completeExceptionally(new NoSuspendedThreadException("Resuming..."));
        }
    });
    T params;
    try {
        params = cf.get();
    } catch (ExecutionException ex) {
        Throwable cause = ex.getCause();
        if (cause instanceof CommandProcessException) {
            throw (CommandProcessException) cause;
        }
        if (cause instanceof NoSuspendedThreadException) {
            throw (NoSuspendedThreadException) cause;
        }
        if (err != null) {
            cause.printStackTrace(err);
        }
        throw new CommandProcessException(ex.getLocalizedMessage());
    } catch (InterruptedException ex) {
        throw new CommandProcessException(ex.getLocalizedMessage());
    }
    return params;
}