public DirectedGraph<KRunState, Transition> step_all(int steps, KRunState v)
throws KRunExecutionException {
if (steps < 1) steps = 1;
debugger.setCurrentState(v.getStateId());
debugger.stepAll(steps);
return debugger.getGraph();
}
public DirectedGraph<KRunState, Transition> step(KRunState v, int steps)
throws KRunExecutionException {
if (steps > 0) {
debugger.setCurrentState(v.getStateId());
debugger.step(steps);
}
return debugger.getGraph();
}
public DirectedGraph<KRunState, Transition> getCurrentGraph() {
return debugger.getGraph();
}
public DirectedGraph<KRunState, Transition> firstStep() {
return debugger.getGraph();
}
// execute krun in debug mode (i.e. step by step execution)
// isSwitch variable is true if we enter in debug execution from normal
// execution (we use the search command with --graph option)
@SuppressWarnings("unchecked")
public static void debugExecution(
Term kast,
String lang,
KRunResult<SearchResults> state,
org.kframework.kil.loader.Context context) {
try {
// adding autocompletion and history feature to the stepper internal
// commandline by using the JLine library
ConsoleReader reader = new ConsoleReader();
reader.setBellEnabled(false);
List<Completor> argCompletor = new LinkedList<Completor>();
argCompletor.add(
new SimpleCompletor(
new String[] {
"help",
"abort",
"resume",
"step",
"step-all",
"select",
"show-search-graph",
"show-node",
"show-edge",
"save",
"load",
"read"
}));
argCompletor.add(new FileNameCompletor());
List<Completor> completors = new LinkedList<Completor>();
completors.add(new ArgumentCompletor(argCompletor));
reader.addCompletor(new MultiCompletor(completors));
new File(K.compiled_def + K.fileSeparator + "main.maude").getCanonicalPath();
RunProcess rp = new RunProcess();
KRun krun = obtainKRun(context);
krun.setBackendOption("io", false);
KRunDebugger debugger;
try {
if (state == null) {
Term t = makeConfiguration(kast, "", rp, (K.term != null), context);
debugger = krun.debug(t);
System.out.println("After running one step of execution the result is:");
AnsiConsole.out.println(debugger.printState(debugger.getCurrentState()));
} else {
debugger = krun.debug(state.getResult().getGraph());
}
} catch (UnsupportedBackendOptionException e) {
Error.report("Backend \"" + K.backend + "\" does not support option " + e.getMessage());
throw e; // unreachable
}
while (true) {
System.out.println();
String input = reader.readLine("Command > ");
if (input == null) {
// probably pressed ^D
System.out.println();
System.exit(0);
}
// construct the right command line input when we specify the
// "step" option with an argument (i.e. step=3)
input = input.trim();
String[] tokens = input.split(" ");
// store the tokens that are not a blank space
List<String> items = new ArrayList<String>();
for (int i = 0; i < tokens.length; i++) {
if ((!(tokens[i].equals(" ")) && (!tokens[i].equals("")))) {
items.add(tokens[i]);
}
}
StringBuilder aux = new StringBuilder();
// excepting the case of a command like: help
if (items.size() > 1) {
for (int i = 0; i < items.size(); i++) {
if (i > 0) {
aux.append("=");
aux.append(items.get(i));
} else if (i == 0) {
aux.append(items.get(i));
}
}
input = aux.toString();
}
// apply trim to remove possible blank spaces from the inserted
// command
String[] cmds = new String[] {"--" + input};
CommandlineOptions cmd_options = new CommandlineOptions();
CommandLine cmd = cmd_options.parse(cmds);
// when an error occurred during parsing the commandline
// continue the execution of the stepper
if (cmd == null) {
continue;
} else {
if (cmd.hasOption("help")) {
printDebugUsage(cmd_options);
}
if (cmd.hasOption("abort")) {
System.exit(0);
}
if (cmd.hasOption("resume")) {
try {
debugger.resume();
AnsiConsole.out.println(debugger.printState(debugger.getCurrentState()));
} catch (IllegalStateException e) {
Error.silentReport(
"Wrong command: If you previously used the step-all command you must"
+ K.lineSeparator
+ "seletc first a solution with step command before executing steps of rewrites!");
}
}
// one step execution (by default) or more if you specify an
// argument
if (cmd.hasOption("step")) {
// by default execute only one step at a time
String arg = new String("1");
String[] remainingArguments = null;
remainingArguments = cmd.getArgs();
if (remainingArguments.length > 0) {
arg = remainingArguments[0];
}
try {
int steps = Integer.parseInt(arg);
debugger.step(steps);
AnsiConsole.out.println(debugger.printState(debugger.getCurrentState()));
} catch (NumberFormatException e) {
Error.silentReport("Argument to step must be an integer.");
} catch (IllegalStateException e) {
Error.silentReport(
"Wrong command: If you previously used the step-all command you must"
+ K.lineSeparator
+ "select first a solution with step command before executing steps of rewrites!");
}
}
if (cmd.hasOption("step-all")) {
// by default compute all successors in one transition
String arg = new String("1");
String[] remainingArguments = null;
remainingArguments = cmd.getArgs();
if (remainingArguments.length > 0) {
arg = remainingArguments[0];
}
try {
int steps = Integer.parseInt(arg);
SearchResults states = debugger.stepAll(steps);
AnsiConsole.out.println(states);
} catch (NumberFormatException e) {
Error.silentReport("Argument to step-all must be an integer.");
} catch (IllegalStateException e) {
Error.silentReport(
"Wrong command: If you previously used the step-all command you must"
+ K.lineSeparator
+ "select first a solution with step command before executing steps of rewrites!");
}
}
// "select n7" or "select 3" are both valid commands
if (cmd.hasOption("select")) {
String arg = new String();
arg = cmd.getOptionValue("select").trim();
try {
int stateNum = Integer.parseInt(arg);
debugger.setCurrentState(stateNum);
AnsiConsole.out.println(debugger.printState(debugger.getCurrentState()));
} catch (NumberFormatException e) {
Error.silentReport("Argument to select must bean integer.");
} catch (IllegalArgumentException e) {
System.out.println(
"A node with the specified state number could not be found in the"
+ K.lineSeparator
+ "search graph");
}
}
if (cmd.hasOption("show-search-graph")) {
System.out.println(K.lineSeparator + "The search graph is:" + K.lineSeparator);
System.out.println(debugger.getGraph());
}
if (cmd.hasOption("show-node")) {
String nodeId = cmd.getOptionValue("show-node").trim();
try {
int stateNum = Integer.parseInt(nodeId);
AnsiConsole.out.println(debugger.printState(stateNum));
} catch (NumberFormatException e) {
Error.silentReport("Argument to select node to show must be an integer.");
} catch (IllegalArgumentException e) {
System.out.println(
"A node with the specified state number could not be found in the"
+ K.lineSeparator
+ "search graph");
}
}
if (cmd.hasOption("show-edge")) {
String[] vals = cmd.getOptionValues("show-edge");
vals = vals[0].split("=", 2);
try {
int state1 = Integer.parseInt(vals[0].trim());
int state2 = Integer.parseInt(vals[1].trim());
AnsiConsole.out.println(debugger.printEdge(state1, state2));
} catch (ArrayIndexOutOfBoundsException e) {
Error.silentReport("Must specify two nodes with an edge between them.");
} catch (NumberFormatException e) {
Error.silentReport("Arguments to select edge to show must be integers.");
} catch (IllegalArgumentException e) {
System.out.println(
"An edge with the specified endpoints could not be found in the"
+ K.lineSeparator
+ "search graph");
}
}
DirectedGraph<KRunState, Transition> savedGraph = null;
if (cmd.hasOption("save")) {
BinaryLoader.save(
new File(cmd.getOptionValue("save")).getCanonicalPath(), debugger.getGraph());
System.out.println("File successfully saved.");
}
if (cmd.hasOption("load")) {
savedGraph =
(DirectedGraph<KRunState, Transition>)
BinaryLoader.load(cmd.getOptionValue("load"));
krun = new MaudeKRun(context);
debugger = krun.debug(savedGraph);
debugger.setCurrentState(1);
System.out.println("File successfully loaded.");
}
if (cmd.hasOption("read")) {
try {
debugger.readFromStdin(
StringBuiltin.valueOf("\"" + cmd.getOptionValue("read") + "\"").stringValue());
AnsiConsole.out.println(debugger.printState(debugger.getCurrentState()));
} catch (IllegalStateException e) {
Error.silentReport(e.getMessage());
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
}
