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

Example 1 with Construct

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

the class Static method AssertType.

/**
 * This verifies that the type required is actually present, and returns the value, cast to the appropriate type,
 * or, if not the correct type, a CRE.
 * <p>
 * Note that this does not do type coersion, and therefore does not work on primitives, and is only meant for
 * arrays, closures, and other complex types.
 *
 * @param <T> The type desired to be cast to
 * @param type The type desired to be cast to
 * @param args The array of arguments.
 * @param argNumber The argument number, used both for grabbing the correct argument from args, and building the
 * error message if the cast cannot occur.
 * @param func The function, in case this errors out, to build the error message.
 * @param t The code target
 * @return The value, cast to the desired type.
 */
public static <T extends Construct> T AssertType(Class<T> type, Construct[] args, int argNumber, Function func, Target t) {
    Construct value = args[argNumber];
    if (!type.isAssignableFrom(value.getClass())) {
        typeof todesired = type.getAnnotation(typeof.class);
        CClassType toactual = value.typeof();
        if (todesired != null) {
            throw new CRECastException("Argument " + (argNumber + 1) + " of " + func.getName() + " was expected to be a " + todesired.value() + ", but " + toactual + " \"" + value.val() + "\" was found.", t);
        } else {
            // If the typeof annotation isn't present, this is a programming error.
            throw new IllegalArgumentException("");
        }
    } else {
        return (T) value;
    }
}

Example 2 with Construct

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

the class Procedure method execute.

/**
 * Executes this procedure, with the arguments that were passed in
 *
 * @param args
 * @param env
 * @param t
 * @return
 */
public Construct execute(List<Construct> args, Environment env, Target t) {
    env.getEnv(GlobalEnv.class).SetVarList(new IVariableList());
    // This is what will become our @arguments var
    CArray arguments = new CArray(Target.UNKNOWN);
    for (String key : originals.keySet()) {
        Construct c = originals.get(key);
        env.getEnv(GlobalEnv.class).GetVarList().set(new IVariable(Auto.TYPE, key, c, Target.UNKNOWN));
        arguments.push(c, t);
    }
    // new Script(null, null);
    Script fakeScript = Script.GenerateScript(tree, env.getEnv(GlobalEnv.class).GetLabel());
    for (int i = 0; i < args.size(); i++) {
        Construct c = args.get(i);
        arguments.set(i, c, t);
        if (varIndex.size() > i) {
            String varname = varIndex.get(i).getVariableName();
            if (c instanceof CNull || InstanceofUtil.isInstanceof(c, varIndex.get(i).getDefinedType()) || varIndex.get(i).getDefinedType().equals(Auto.TYPE)) {
                env.getEnv(GlobalEnv.class).GetVarList().set(new IVariable(varIndex.get(i).getDefinedType(), varname, c, c.getTarget()));
            } else {
                throw new CRECastException("Procedure \"" + name + "\" expects a value of type " + varIndex.get(i).getDefinedType().val() + " in argument " + (i + 1) + ", but" + " a value of type " + c.typeof() + " was found instead.", c.getTarget());
            }
        }
    }
    env.getEnv(GlobalEnv.class).GetVarList().set(new IVariable(CArray.TYPE, "@arguments", arguments, Target.UNKNOWN));
    StackTraceManager stManager = env.getEnv(GlobalEnv.class).GetStackTraceManager();
    stManager.addStackTraceElement(new ConfigRuntimeException.StackTraceElement("proc " + name, getTarget()));
    try {
        if (tree.getData() instanceof CFunction && "sconcat".equals(tree.getData().val())) {
            // compiler proper.
            for (ParseTree child : tree.getChildren()) {
                fakeScript.eval(child, env);
            }
        } else {
            fakeScript.eval(tree, env);
        }
    } catch (FunctionReturnException e) {
        // Normal exit
        stManager.popStackTraceElement();
        Construct ret = e.getReturn();
        if (!InstanceofUtil.isInstanceof(ret, returnType)) {
            throw new CRECastException("Expected procedure \"" + name + "\" to return a value of type " + returnType.val() + " but a value of type " + ret.typeof() + " was returned instead", ret.getTarget());
        }
        return ret;
    } catch (LoopManipulationException ex) {
        // Not exactly normal, but pop anyways
        stManager.popStackTraceElement();
        // a compile error.
        throw ConfigRuntimeException.CreateUncatchableException("Loop manipulation operations (e.g. break() or continue()) cannot" + " bubble up past procedures.", t);
    } catch (ConfigRuntimeException e) {
        if (e instanceof AbstractCREException) {
            ((AbstractCREException) e).freezeStackTraceElements(stManager);
        }
        stManager.popStackTraceElement();
        throw e;
    } catch (Throwable th) {
        // Not sure. Pop, but rethrow
        stManager.popStackTraceElement();
        throw th;
    }
    // Normal exit, but no return.
    stManager.popStackTraceElement();
    // If we got here, then there was no return value. This is fine, but only for returnType void or auto.
    if (!(returnType.equals(Auto.TYPE) || returnType.equals(CVoid.TYPE))) {
        throw new CRECastException("Expecting procedure \"" + name + "\" to return a value of type " + returnType.val() + "," + " but no value was returned.", tree.getTarget());
    }
    return CVoid.VOID;
}

Example 3 with Construct

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

the class Script method run.

public void run(final List<Variable> vars, Environment myEnv, final MethodScriptComplete done) {
    // Some things, such as the label are determined at compile time
    this.CurrentEnv = myEnv;
    this.CurrentEnv.getEnv(GlobalEnv.class).SetLabel(this.label);
    MCCommandSender p = myEnv.getEnv(CommandHelperEnvironment.class).GetCommandSender();
    if (!hasBeenCompiled || compilerError) {
        Target target = Target.UNKNOWN;
        if (left.size() >= 1) {
            try {
                target = new Target(left.get(0).line_num, left.get(0).file, left.get(0).column);
            } catch (NullPointerException e) {
            // Oh well, we tried to get more information
            }
        }
        throw ConfigRuntimeException.CreateUncatchableException("Unable to run command, script not yet compiled," + " or a compiler error occurred for that command. To see the compile error, run /reloadaliases", target);
    }
    enforceLabelPermissions();
    try {
        for (ParseTree rootNode : cright) {
            if (rootNode == null) {
                continue;
            }
            for (Construct tempNode : rootNode.getAllData()) {
                if (tempNode instanceof Variable) {
                    if (left_vars == null) {
                        throw ConfigRuntimeException.CreateUncatchableException("$variables may not be used in this context." + " Only @variables may be.", tempNode.getTarget());
                    }
                    Construct c = Static.resolveDollarVar(left_vars.get(((Variable) tempNode).getVariableName()), vars);
                    ((Variable) tempNode).setVal(new CString(c.toString(), tempNode.getTarget()));
                }
            }
            MethodScriptCompiler.registerAutoIncludes(CurrentEnv, this);
            MethodScriptCompiler.execute(rootNode, CurrentEnv, done, this);
        }
    } catch (ConfigRuntimeException ex) {
        // We don't know how to handle this really, so let's pass it up the chain.
        throw ex;
    } catch (CancelCommandException e) {
    // p.sendMessage(e.getMessage());
    // The message in the exception is actually empty
    } catch (LoopBreakException e) {
        if (p != null) {
            p.sendMessage("The break() function must be used inside a for() or foreach() loop");
        }
        StreamUtils.GetSystemOut().println("The break() function must be used inside a for() or foreach() loop");
    } catch (LoopContinueException e) {
        if (p != null) {
            p.sendMessage("The continue() function must be used inside a for() or foreach() loop");
        }
        StreamUtils.GetSystemOut().println("The continue() function must be used inside a for() or foreach() loop");
    } catch (FunctionReturnException e) {
        if (myEnv.getEnv(GlobalEnv.class).GetEvent() != null) {
            // Oh, we're running in an event handler. Those know how to catch it too.
            throw e;
        }
        if (p != null) {
            p.sendMessage("The return() function must be used inside a procedure.");
        }
        StreamUtils.GetSystemOut().println("The return() function must be used inside a procedure.");
    } catch (Throwable t) {
        StreamUtils.GetSystemOut().println("An unexpected exception occurred during the execution of a script.");
        t.printStackTrace();
        if (p != null) {
            p.sendMessage("An unexpected exception occurred during the execution of your script." + " Please check the console for more information.");
        }
    }
    if (done != null) {
        done.done(null);
    }
}

Example 4 with Construct

use of com.laytonsmith.core.constructs.Construct 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 5 with Construct

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

the class Script method match.

public boolean match(String command) {
    if (cleft == null) {
        // we can't match it, nor can we even tell if it's what they intended for us to run.
        return false;
    }
    boolean case_sensitive = Prefs.CaseSensitive();
    String[] cmds = command.split(" ");
    List<String> args = new ArrayList<>(Arrays.asList(cmds));
    boolean isAMatch = true;
    StringBuilder lastVar = new StringBuilder();
    int lastJ = 0;
    for (int j = 0; j < cleft.size(); j++) {
        if (!isAMatch) {
            break;
        }
        lastJ = j;
        Construct c = cleft.get(j);
        if (args.size() <= j) {
            if (c.getCType() != ConstructType.VARIABLE || !((Variable) c).isOptional()) {
                isAMatch = false;
            }
            break;
        }
        String arg = args.get(j);
        if (c.getCType() != ConstructType.VARIABLE) {
            if (case_sensitive && !c.val().equals(arg) || !case_sensitive && !c.val().equalsIgnoreCase(arg)) {
                isAMatch = false;
                continue;
            }
        } else {
            // args isn't greater than the size of cleft, it's a match
            if (((Variable) c).isOptional()) {
                if (args.size() <= cleft.size()) {
                    return true;
                } else {
                    Construct fin = cleft.get(cleft.size() - 1);
                    if (fin instanceof Variable) {
                        if (((Variable) fin).isFinal()) {
                            return true;
                        }
                    }
                    return false;
                }
            }
        }
        if (j == cleft.size() - 1) {
            if (cleft.get(j).getCType() == ConstructType.VARIABLE) {
                Variable lv = (Variable) cleft.get(j);
                if (lv.isFinal()) {
                    for (int a = j; a < args.size(); a++) {
                        if (lastVar.length() == 0) {
                            lastVar.append(args.get(a));
                        } else {
                            lastVar.append(" ").append(args.get(a));
                        }
                    }
                }
            }
        }
    }
    boolean lastIsFinal = false;
    if (cleft.get(cleft.size() - 1) instanceof Variable) {
        Variable v = (Variable) cleft.get(cleft.size() - 1);
        if (v.isFinal()) {
            lastIsFinal = true;
        }
    }
    if ((cleft.get(lastJ) instanceof Variable && ((Variable) cleft.get(lastJ)).isOptional())) {
        return true;
    }
    if (cleft.size() != cmds.length && !lastIsFinal) {
        isAMatch = false;
    }
    return isAMatch;
}