Examples with ErrorAPI edu.mit.csail.sdg.alloy4.ErrorAPI used on opensource projects

Example 6 with ErrorAPI

use of edu.mit.csail.sdg.alloy4.ErrorAPI in project org.alloytools.alloy by AlloyTools.

the class ScopeComputer method setMaxSeq.

/**
 * Modifies the maximum sequence length.
 */
private void setMaxSeq(Pos pos, int newMaxSeq) throws ErrorAPI, ErrorSyntax {
    if (newMaxSeq > max())
        throw new ErrorSyntax(pos, "With integer bitwidth of " + bitwidth + ", you cannot have sequence length longer than " + max());
    if (newMaxSeq < 0)
        // throw new ErrorSyntax(pos, "The maximum sequence
        newMaxSeq = 0;
    // length cannot be negative.");
    maxseq = newMaxSeq;
    sig2scope.put(SEQIDX, maxseq);
}

Example 7 with ErrorAPI

use of edu.mit.csail.sdg.alloy4.ErrorAPI in project org.alloytools.alloy by AlloyTools.

the class ScopeComputer method setBitwidth.

/**
 * Modifies the integer bitwidth of this solution's model (and sets the max
 * sequence length to 0)
 */
private void setBitwidth(Pos pos, int newBitwidth) throws ErrorAPI, ErrorSyntax {
    if (newBitwidth < 0)
        throw new ErrorSyntax(pos, "Cannot specify a bitwidth less than 0");
    if (newBitwidth > 30)
        throw new ErrorSyntax(pos, "Cannot specify a bitwidth greater than 30");
    bitwidth = newBitwidth;
    maxseq = 0;
    sig2scope.put(SIGINT, bitwidth < 1 ? 0 : 1 << bitwidth);
    sig2scope.put(SEQIDX, 0);
}

Example 8 with ErrorAPI

use of edu.mit.csail.sdg.alloy4.ErrorAPI in project org.alloytools.alloy by AlloyTools.

the class ExampleUsingTheCompiler method main.

/*
     * Execute every command in every file. This method parses every file, then
     * execute every command. If there are syntax or type errors, it may throw a
     * ErrorSyntax or ErrorType or ErrorAPI or ErrorFatal exception. You should
     * catch them and display them, and they may contain filename/line/column
     * information.
     */
public static void main(String[] args) throws Err {
    // The visualizer (We will initialize it to nonnull when we visualize an
    // Alloy solution)
    VizGUI viz = null;
    // Alloy4 sends diagnostic messages and progress reports to the
    // A4Reporter.
    // By default, the A4Reporter ignores all these events (but you can
    // extend the A4Reporter to display the event for the user)
    A4Reporter rep = new A4Reporter() {

        // For example, here we choose to display each "warning" by printing
        // it to System.out
        @Override
        public void warning(ErrorWarning msg) {
            System.out.print("Relevance Warning:\n" + (msg.toString().trim()) + "\n\n");
            System.out.flush();
        }
    };
    for (String filename : args) {
        // Parse+typecheck the model
        System.out.println("=========== Parsing+Typechecking " + filename + " =============");
        Module world = CompUtil.parseEverything_fromFile(rep, null, filename);
        // Choose some default options for how you want to execute the
        // commands
        A4Options options = new A4Options();
        options.solver = A4Options.SatSolver.SAT4J;
        for (Command command : world.getAllCommands()) {
            // Execute the command
            System.out.println("============ Command " + command + ": ============");
            A4Solution ans = TranslateAlloyToKodkod.execute_command(rep, world.getAllReachableSigs(), command, options);
            // Print the outcome
            System.out.println(ans);
            // If satisfiable...
            if (ans.satisfiable()) {
                // You can query "ans" to find out the values of each set or
                // type.
                // This can be useful for debugging.
                // 
                // You can also write the outcome to an XML file
                ans.writeXML("alloy_example_output.xml");
                // You can then visualize the XML file by calling this:
                if (viz == null) {
                    viz = new VizGUI(false, "alloy_example_output.xml", null);
                } else {
                    viz.loadXML("alloy_example_output.xml", true);
                }
            }
        }
    }
}

Example 9 with ErrorAPI

use of edu.mit.csail.sdg.alloy4.ErrorAPI in project org.alloytools.alloy by AlloyTools.

the class SimInstance method init.

/**
 * Initializes the given field to be associated with the given unary value;
 * should only be called at the beginning.
 * <p>
 * The resulting instance may or may not satisfy all facts, and should be
 * checked for consistency.
 */
public void init(Field field, SimTupleset value) throws Err {
    if (value == null) {
        sfs.remove(field);
        return;
    }
    if (!value.empty() && value.arity() != field.type().arity())
        throw new ErrorType("Evaluator encountered an error: field " + field.label + " arity must not be " + value.arity());
    if (field.defined)
        throw new ErrorAPI("Evaluator cannot prebind the value of a defined field.");
    sfs.put(field, value);
    cacheUNIV = null;
    cacheSTRING = null;
    cacheForConstants.clear();
}

Example 10 with ErrorAPI

use of edu.mit.csail.sdg.alloy4.ErrorAPI in project org.alloytools.alloy by AlloyTools.

the class A4TupleSet method minus.

/**
 * Construct a new tupleset as the subtraction of this and that; this and that
 * must be come from the same solution. Note: if that==null, then the method
 * returns this A4TupleSet as-is.
 */
public A4TupleSet minus(A4TupleSet that) throws ErrorAPI {
    if (that == null)
        return this;
    if (sol != that.sol)
        throw new ErrorAPI("A4TupleSet.minus() requires 2 tuplesets from the same A4Solution.");
    if (arity() != that.arity())
        throw new ErrorAPI("A4TupleSet.minus() requires 2 tuplesets with the same arity.");
    if (tuples.size() == 0 || that.tuples.size() == 0)
        // special short cut
        return this;
    TupleSet ts = tuples.clone();
    ts.removeAll(that.tuples);
    if (tuples.size() != ts.size())
        return new A4TupleSet(ts, sol);
    else
        return this;
}