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

Example 36 with Err

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

the class CUP$CompParser$actions method alloy_parseStream.

static CompModule alloy_parseStream(List<Object> seenDollar, Map<String, String> loaded, Map<String, String> fc, CompModule root, int lineOffset, String filename, String prefix, int initialResolutionMode) throws Err, FileNotFoundException, IOException {
    Reader isr = null;
    try {
        if (root == null && prefix.length() != 0)
            throw new ErrorFatal("Internal error (parse subfile with root==null)");
        if (root != null && prefix.length() == 0)
            throw new ErrorFatal("Internal error (parse topfile with root!=null)");
        CompModule u = new CompModule(root, filename, prefix);
        if (!filename.endsWith(INT_LIB_NAME + ".als"))
            u.addOpen(null, null, ExprVar.make(null, INT_LIB_NAME), null, ExprVar.make(null, "integer"));
        u.resolution = initialResolutionMode;
        String content = fc != null ? fc.get(filename) : null;
        if (content == null && loaded != null)
            content = loaded.get(filename);
        if (content == null)
            content = Util.readAll(filename);
        if (loaded != null)
            loaded.put(filename, content);
        content = MarkdownHandler.strip(content);
        content = Util.convertLineBreak(content);
        isr = new StringReader(content);
        CompFilter s = new CompFilter(u, seenDollar, filename, lineOffset, new BufferedReader(isr));
        CompParser p = new CompParser(s);
        p.alloymodule = u;
        try {
            p.parse();
        } catch (Throwable ex) {
            if (ex instanceof Err)
                throw (Err) ex;
            throw new ErrorFatal("Parser Exception", ex);
        }
        return u;
    } finally {
        Util.close(isr);
    }
}

Example 37 with Err

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

the class CompUtil method parseOneModule.

public static CompModule parseOneModule(String content) throws Err {
    try {
        Map<String, String> fc = new LinkedHashMap<String, String>();
        fc.put("", content);
        return CompUtil.parse(new ArrayList<Object>(), null, fc, null, 0, "", "", 1);
    } catch (IOException ex) {
        throw new ErrorFatal("IOException occurred: " + ex.getMessage(), ex);
    } catch (Throwable ex) {
        if (ex instanceof Err)
            throw (Err) ex;
        else
            throw new ErrorFatal("Unknown exception occurred: " + ex, ex);
    }
}

Example 38 with Err

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

the class CompUtil method parseEverything_fromFile.

/**
 * Read everything from "file" and parse it; if it mentions submodules, open
 * them and parse them too.
 *
 * @param rep - if nonnull, we will report compilation progress messages to it
 * @param loaded - a cache of files that have been pre-fetched (can be null if
 *            there were no prefetching)
 * @param filename - the main module we are parsing
 * @param initialResolutionMode - use 1 for the historical behavior, and 2 for
 *            Alloy 4.2's new "universal implicit this" name resolution behavior
 * @return the root CompModule which contains pointers to all submodules
 * @throws Err if an error occurred
 *             <p>
 *             And if loaded!=null, it will contain all the files needed for
 *             this parse, and furthermore, other entries will be deleted.
 */
public static CompModule parseEverything_fromFile(A4Reporter rep, Map<String, String> loaded, String filename, int initialResolutionMode) throws Err {
    try {
        filename = Util.canon(filename);
        Set<String> thispath = new LinkedHashSet<String>();
        if (loaded == null)
            loaded = new LinkedHashMap<String, String>();
        Map<String, String> fc = new LinkedHashMap<String, String>(loaded);
        loaded.clear();
        List<Object> seenDollar = new ArrayList<Object>();
        CompModule root = parseRecursively(seenDollar, loaded, fc, new Pos(filename, 1, 1), filename, null, "", thispath, initialResolutionMode);
        // if no sigs are defined by the user, add one
        if (root.getAllReachableUserDefinedSigs().isEmpty()) {
            root.addGhostSig();
        }
        root.seenDollar = seenDollar.size() > 0;
        return CompModule.resolveAll(rep == null ? A4Reporter.NOP : rep, root);
    } catch (FileNotFoundException ex) {
        throw new ErrorSyntax("File cannot be found.\n" + ex.getMessage(), ex);
    } catch (IOException ex) {
        throw new ErrorFatal("IOException occurred: " + ex.getMessage(), ex);
    } catch (Throwable ex) {
        if (ex instanceof Err)
            throw (Err) ex;
        else
            throw new ErrorFatal("Unknown exception occurred: " + ex, ex);
    }
}

Example 39 with Err

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

the class CompUtil method parseRecursively.

// =============================================================================================================//
/**
 * Helper method that recursively parse a file and all its included subfiles
 *
 * @param loaded - this stores the text files we've loaded while parsing; cannot
 *            be null
 * @param fc - if a file cannot be found, we consult this cache first before
 *            attempting to load it from disk/jar; cannot be null
 * @param pos - the position of the "open" statement
 * @param filename - the filename to open
 * @param root - the root module (this field is ignored if prefix=="")
 * @param prefix - the prefix for the file we are about to parse
 * @param thispath - the set of filenames involved in the current
 *            chain_of_file_opening
 */
private static CompModule parseRecursively(List<Object> seenDollar, Map<String, String> loaded, Map<String, String> fc, Pos pos, String filename, CompModule root, String prefix, Set<String> thispath, int initialResolution) throws Err, FileNotFoundException, IOException {
    // repeated.
    if (thispath.contains(filename))
        throw new ErrorSyntax(pos, "Circular dependency in module import. The file \"" + (new File(filename)).getName() + "\" is imported infinitely often.");
    thispath.add(filename);
    // No cycle detected so far. So now we parse the file.
    CompModule u = CompUtil.parse(seenDollar, loaded, fc, root, 0, filename, prefix, initialResolution);
    if (prefix.length() == 0)
        root = u;
    // Here, we recursively open the included files
    for (Open x : u.getOpens()) {
        String cp = Util.canon(computeModulePath(u.getModelName(), filename, x.filename)), content = fc.get(cp);
        try {
            if (content == null) {
                content = loaded.get(cp);
            }
            if (content == null) {
                content = fc.get(x.filename);
                if (content != null)
                    cp = x.filename;
            }
            if (content == null) {
                content = loaded.get(x.filename);
                if (content != null)
                    cp = x.filename;
            }
            if (content == null) {
                content = Util.readAll(cp);
            }
        } catch (IOException ex1) {
            try {
                String newCp = (Util.jarPrefix() + "models/" + x.filename + ".als").replace('/', File.separatorChar);
                content = Util.readAll(newCp);
                cp = newCp;
            } catch (IOException ex) {
                throw new ErrorSyntax(x.pos, "This module cannot be found.\nIt is not a built-in library module, and it cannot be found at \"" + cp + "\".\n");
            }
        }
        loaded.put(cp, content);
        x.setResolvedFilePath(cp);
        CompModule y = parseRecursively(seenDollar, loaded, fc, x.pos, cp, root, (prefix.length() == 0 ? x.alias : prefix + "/" + x.alias), thispath, initialResolution);
        x.connect(y);
    }
    // Remove this file from the CYCLE DETECTION
    thispath.remove(filename);
    // LIST.
    return u;
}

Example 40 with Err

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

the class A4SolutionReader method parseType.

/**
 * Parse type.
 */
private Expr parseType(XMLNode node) throws IOException, Err {
    Expr expr = null;
    if (!node.is("types"))
        throw new IOException("<types>...</type> expected");
    for (XMLNode n : node) if (n.is("type")) {
        Sig sig = parseSig(n.getAttribute("ID"), 0);
        if (expr == null)
            expr = sig;
        else
            expr = expr.product(sig);
    }
    if (expr == null)
        throw new IOException("<type ID=../> expected");
    return expr;
}