Examples with CVoid com.laytonsmith.core.constructs.CVoid used on opensource projects

Example 1 with CVoid

use of com.laytonsmith.core.constructs.CVoid in project CommandHelper by EngineHub.

the class Script method eval.

/**
 * Given the parse tree and environment, executes the tree.
 *
 * @param c
 * @param env
 * @return
 * @throws CancelCommandException
 */
public Construct eval(ParseTree c, final Environment env) throws CancelCommandException {
    if (env.getEnv(GlobalEnv.class).IsInterrupted()) {
        // unconditionally.
        throw new CancelCommandException("", Target.UNKNOWN);
    }
    final Construct m = c.getData();
    CurrentEnv = env;
    if (m.getCType() != ConstructType.FUNCTION) {
        if (m.getCType() == ConstructType.VARIABLE) {
            return new CString(m.val(), m.getTarget());
        } else {
            return m;
        }
    }
    StackTraceManager stManager = env.getEnv(GlobalEnv.class).GetStackTraceManager();
    boolean addedRootStackElement = false;
    try {
        // If it's an unknown target, this is not user generated code, and we want to skip adding the element here.
        if (stManager.isStackEmpty() && !m.getTarget().equals(Target.UNKNOWN)) {
            stManager.addStackTraceElement(new ConfigRuntimeException.StackTraceElement("<<main code>>", m.getTarget()));
            addedRootStackElement = true;
        }
        stManager.setCurrentTarget(c.getTarget());
        env.getEnv(GlobalEnv.class).SetScript(this);
        if (m.val().charAt(0) == '_' && m.val().charAt(1) != '_') {
            // Not really a function, so we can't put it in Function.
            Procedure p = getProc(m.val());
            if (p == null) {
                throw new CREInvalidProcedureException("Unknown procedure \"" + m.val() + "\"", m.getTarget());
            }
            Environment newEnv = env;
            try {
                newEnv = env.clone();
            } catch (CloneNotSupportedException e) {
            }
            ProfilePoint pp = env.getEnv(GlobalEnv.class).GetProfiler().start(m.val() + " execution", LogLevel.INFO);
            Construct ret;
            try {
                ret = p.cexecute(c.getChildren(), newEnv, m.getTarget());
            } finally {
                pp.stop();
            }
            return ret;
        }
        final Function f;
        try {
            f = (Function) FunctionList.getFunction(m);
        } catch (ConfigCompileException e) {
            // Turn it into a config runtime exception. This shouldn't ever happen though.
            throw ConfigRuntimeException.CreateUncatchableException("Unable to find function " + m.val(), m.getTarget());
        }
        ArrayList<Construct> args = new ArrayList<>();
        try {
            if (f.isRestricted() && !Static.hasCHPermission(f.getName(), env)) {
                throw new CREInsufficientPermissionException("You do not have permission to use the " + f.getName() + " function.", m.getTarget());
            }
            if (f.useSpecialExec()) {
                ProfilePoint p = null;
                if (f.shouldProfile() && env.getEnv(GlobalEnv.class).GetProfiler() != null && env.getEnv(GlobalEnv.class).GetProfiler().isLoggable(f.profileAt())) {
                    p = env.getEnv(GlobalEnv.class).GetProfiler().start(f.profileMessageS(c.getChildren()), f.profileAt());
                }
                Construct ret;
                try {
                    ret = f.execs(m.getTarget(), env, this, c.getChildren().toArray(new ParseTree[] {}));
                } finally {
                    if (p != null) {
                        p.stop();
                    }
                }
                return ret;
            }
            for (ParseTree c2 : c.getChildren()) {
                args.add(eval(c2, env));
            }
            Object[] a = args.toArray();
            Construct[] ca = new Construct[a.length];
            for (int i = 0; i < a.length; i++) {
                ca[i] = (Construct) a[i];
                // CArray, CBoolean, CDouble, CInt, CNull, CString, CVoid, CEntry, CLabel (only to sconcat).
                if (!(ca[i] instanceof CArray || ca[i] instanceof CBoolean || ca[i] instanceof CDouble || ca[i] instanceof CInt || ca[i] instanceof CNull || ca[i] instanceof CString || ca[i] instanceof CVoid || ca[i] instanceof IVariable || ca[i] instanceof CEntry || ca[i] instanceof CLabel) && (!f.getName().equals("__autoconcat__") && (ca[i] instanceof CLabel))) {
                    throw new CRECastException("Invalid Construct (" + ca[i].getClass() + ") being passed as an argument to a function (" + f.getName() + ")", m.getTarget());
                }
                while (f.preResolveVariables() && ca[i] instanceof IVariable) {
                    IVariable cur = (IVariable) ca[i];
                    ca[i] = env.getEnv(GlobalEnv.class).GetVarList().get(cur.getVariableName(), cur.getTarget()).ival();
                }
            }
            {
                // It takes a moment to generate the toString of some things, so lets not do it
                // if we actually aren't going to profile
                ProfilePoint p = null;
                if (f.shouldProfile() && env.getEnv(GlobalEnv.class).GetProfiler() != null && env.getEnv(GlobalEnv.class).GetProfiler().isLoggable(f.profileAt())) {
                    p = env.getEnv(GlobalEnv.class).GetProfiler().start(f.profileMessage(ca), f.profileAt());
                }
                Construct ret;
                try {
                    ret = f.exec(m.getTarget(), env, ca);
                } finally {
                    if (p != null) {
                        p.stop();
                    }
                }
                return ret;
            }
        // We want to catch and rethrow the ones we know how to catch, and then
        // catch and report anything else.
        } catch (ConfigRuntimeException | ProgramFlowManipulationException e) {
            if (e instanceof AbstractCREException) {
                ((AbstractCREException) e).freezeStackTraceElements(stManager);
            }
            throw e;
        } catch (InvalidEnvironmentException e) {
            if (!e.isDataSet()) {
                e.setData(f.getName());
            }
            throw e;
        } catch (Exception e) {
            String brand = Implementation.GetServerType().getBranding();
            SimpleVersion version = Static.getVersion();
            String culprit = brand;
            outer: for (ExtensionTracker tracker : ExtensionManager.getTrackers().values()) {
                for (FunctionBase b : tracker.getFunctions()) {
                    if (b.getName().equals(f.getName())) {
                        // name instead of the core plugin's name.
                        for (Extension extension : tracker.getExtensions()) {
                            culprit = extension.getName();
                            break outer;
                        }
                    }
                }
            }
            String emsg = TermColors.RED + "Uh oh! You've found an error in " + TermColors.CYAN + culprit + TermColors.RED + ".\n" + "This happened while running your code, so you may be able to find a workaround," + " but is ultimately an issue in " + culprit + ".\n" + "The following code caused the error:\n" + TermColors.WHITE;
            List<String> args2 = new ArrayList<>();
            Map<String, String> vars = new HashMap<>();
            for (Construct cc : args) {
                if (cc instanceof IVariable) {
                    Construct ccc = env.getEnv(GlobalEnv.class).GetVarList().get(((IVariable) cc).getVariableName(), cc.getTarget()).ival();
                    String vval = ccc.val();
                    if (ccc instanceof CString) {
                        vval = ccc.asString().getQuote();
                    }
                    vars.put(((IVariable) cc).getVariableName(), vval);
                }
                if (cc == null) {
                    args2.add("java-null");
                } else if (cc instanceof CString) {
                    args2.add(cc.asString().getQuote());
                } else if (cc instanceof IVariable) {
                    args2.add(((IVariable) cc).getVariableName());
                } else {
                    args2.add(cc.val());
                }
            }
            if (!vars.isEmpty()) {
                emsg += StringUtils.Join(vars, " = ", "\n") + "\n";
            }
            emsg += f.getName() + "(";
            emsg += StringUtils.Join(args2, ", ");
            emsg += ")\n";
            emsg += TermColors.RED + "on or around " + TermColors.YELLOW + m.getTarget().file() + TermColors.WHITE + ":" + TermColors.CYAN + m.getTarget().line() + TermColors.RED + ".\n";
            // Server might not be available in this platform, so let's be sure to ignore those exceptions
            String modVersion;
            try {
                modVersion = StaticLayer.GetConvertor().GetServer().getAPIVersion();
            } catch (Exception ex) {
                modVersion = Implementation.GetServerType().name();
            }
            String extensionData = "";
            for (ExtensionTracker tracker : ExtensionManager.getTrackers().values()) {
                for (Extension extension : tracker.getExtensions()) {
                    try {
                        extensionData += TermColors.CYAN + extension.getName() + TermColors.RED + " (" + TermColors.RESET + extension.getVersion() + TermColors.RED + ")\n";
                    } catch (AbstractMethodError ex) {
                        // This happens with an old style extensions. Just skip it.
                        extensionData += TermColors.CYAN + "Unknown Extension" + TermColors.RED + "\n";
                    }
                }
            }
            if (extensionData.isEmpty()) {
                extensionData = "NONE\n";
            }
            emsg += "Please report this to the developers, and be sure to include the version numbers:\n" + TermColors.CYAN + "Server" + TermColors.RED + " version: " + TermColors.RESET + modVersion + TermColors.RED + ";\n" + TermColors.CYAN + brand + TermColors.RED + " version: " + TermColors.RESET + version + TermColors.RED + ";\n" + "Loaded extensions and versions:\n" + extensionData + "Here's the stacktrace:\n" + TermColors.RESET + Static.GetStacktraceString(e);
            Static.getLogger().log(Level.SEVERE, emsg);
            throw new CancelCommandException(null, Target.UNKNOWN);
        }
    } finally {
        if (addedRootStackElement && stManager.isStackSingle()) {
            stManager.popStackTraceElement();
        }
    }
}

Example 2 with CVoid

use of com.laytonsmith.core.constructs.CVoid in project CommandHelper by EngineHub.

the class MethodScriptExecutionQueue method getExceptionHandler.

private Thread.UncaughtExceptionHandler getExceptionHandler() {
    Thread.UncaughtExceptionHandler uceh = new Thread.UncaughtExceptionHandler() {

        @Override
        public void uncaughtException(Thread t, Throwable e) {
            Environment env = Environment.createEnvironment(MethodScriptExecutionQueue.this.env);
            if (e instanceof ConfigRuntimeException) {
                // This should be handled by the default UEH
                ConfigRuntimeException.HandleUncaughtException(((ConfigRuntimeException) e), env);
            } else if (e instanceof FunctionReturnException) {
                // ignored, so we want to warn them, but not trigger a flat out error.
                if (!(((FunctionReturnException) e).getReturn() instanceof CVoid)) {
                    ConfigRuntimeException.DoWarning("Closure is returning a value in an execution queue task," + " which is unexpected behavior. It may return void however, which will" + " simply stop that one task. " + ((FunctionReturnException) e).getTarget().toString());
                }
            } else if (e instanceof CancelCommandException) {
                // Ok. If there's a message, echo it to console.
                String msg = ((CancelCommandException) e).getMessage().trim();
                if (!"".equals(msg)) {
                    Target tt = ((CancelCommandException) e).getTarget();
                    new Echoes.console().exec(tt, env, new CString(msg, tt));
                }
            } else {
                // handle, so let it bubble up further.
                throw new RuntimeException(e);
            }
        }
    };
    return uceh;
}

Example 3 with CVoid

use of com.laytonsmith.core.constructs.CVoid in project CommandHelper by EngineHub.

the class Static method getJavaObject.

/**
 * Given a MethodScript object, returns a java object.
 *
 * @param construct
 * @return
 */
public static Object getJavaObject(Construct construct) {
    if ((construct == null) || (construct instanceof CNull)) {
        return null;
    } else if (construct instanceof CVoid) {
        return "";
    } else if (construct instanceof CBoolean) {
        return ((CBoolean) construct).getBoolean();
    } else if (construct instanceof CInt) {
        return ((CInt) construct).getInt();
    } else if (construct instanceof CDouble) {
        return ((CDouble) construct).getDouble();
    } else if (construct instanceof CString) {
        return construct.val();
    } else if (construct instanceof CByteArray) {
        return ((CByteArray) construct).asByteArrayCopy();
    } else if (construct instanceof CResource) {
        return ((CResource) construct).getResource();
    } else if (construct instanceof CArray) {
        CArray array = (CArray) construct;
        if (array.isAssociative()) {
            HashMap<String, Object> map = new HashMap<>();
            for (Construct key : array.keySet()) {
                Construct c = array.get(key.val(), Target.UNKNOWN);
                map.put(key.val(), (c == array) ? map : getJavaObject(c));
            }
            return map;
        } else {
            Object[] a = new Object[(int) array.size()];
            boolean nullable = false;
            Class<?> clazz = null;
            for (int i = 0; i < array.size(); i++) {
                Construct c = array.get(i, Target.UNKNOWN);
                if (c == array) {
                    a[i] = a;
                } else {
                    a[i] = getJavaObject(array.get(i, Target.UNKNOWN));
                }
                if (a[i] != null) {
                    if (clazz == null) {
                        clazz = a[i].getClass();
                    } else if (!clazz.equals(Object.class)) {
                        // to test if it is possible to return something more specific than Object[]
                        Class<?> cl = a[i].getClass();
                        while (!clazz.isAssignableFrom(cl)) {
                            clazz = clazz.getSuperclass();
                        }
                    }
                } else {
                    nullable = true;
                }
            }
            if ((clazz != null) && (!clazz.equals(Object.class))) {
                if (clazz.equals(Boolean.class) && !nullable) {
                    boolean[] r = new boolean[a.length];
                    for (int i = 0; i < a.length; i++) {
                        r[i] = (boolean) a[i];
                    }
                    return r;
                }
                if (clazz.equals(Long.class) && !nullable) {
                    long[] r = new long[a.length];
                    for (int i = 0; i < a.length; i++) {
                        r[i] = (long) a[i];
                    }
                    return r;
                } else if (clazz.equals(Double.class) && !nullable) {
                    double[] r = new double[a.length];
                    for (int i = 0; i < a.length; i++) {
                        r[i] = (double) a[i];
                    }
                    return r;
                } else {
                    Object[] r = (Object[]) Array.newInstance(clazz, a.length);
                    System.arraycopy(a, 0, r, 0, a.length);
                    return r;
                }
            } else {
                return a;
            }
        }
    } else {
        return construct;
    }
}