Examples with IStrategoInt org.spoofax.interpreter.terms.IStrategoInt used on opensource projects

Example 1 with IStrategoInt

use of org.spoofax.interpreter.terms.IStrategoInt in project spoofax by metaborg.

the class ParsePrimitive method call.

@Override
protected IStrategoTerm call(IStrategoTerm current, Strategy[] svars, IStrategoTerm[] tvars, ITermFactory factory, org.spoofax.interpreter.core.IContext strategoContext) throws MetaborgException, IOException {
    // Determine what to parse.
    if (!(current instanceof IStrategoString)) {
        throw new MetaborgException("Cannot parse, input string or file " + current + " is not a string");
    }
    final String stringOrFile = ((IStrategoString) current).stringValue();
    final String text;
    @Nullable final FileObject file;
    final IStrategoTerm isFileTerm = tvars[0];
    if (!(isFileTerm instanceof IStrategoInt)) {
        throw new MetaborgException("Cannot parse, input kind " + isFileTerm + " is not an integer");
    }
    if (((IStrategoInt) isFileTerm).intValue() == 1) {
        file = resourceService.resolve(stringOrFile);
        if (!file.exists() || !file.isFile()) {
            throw new MetaborgException("Cannot parse, input file " + file + " does not exist or is not a file");
        }
        text = sourceTextService.text(file);
    } else {
        file = null;
        text = stringOrFile;
    }
    // Determine which language to parse it with.
    final ILanguageImpl langImpl;
    final IStrategoTerm nameOrGroupIdTerm = tvars[1];
    final IStrategoTerm idTerm = tvars[2];
    final IStrategoTerm versionTerm = tvars[3];
    if (nameOrGroupIdTerm instanceof IStrategoTuple) {
        // No name, groupId, id, and version was set, auto detect language to parse with.
        if (file == null) {
            throw new MetaborgException("Cannot parse a string, no language to parse it with was given");
        }
        final IContext context = metaborgContext(strategoContext);
        if (context != null) {
            langImpl = languageIdentifierService.identify(file, context.project());
        } else {
            langImpl = languageIdentifierService.identify(file);
        }
        if (langImpl == null) {
            throw new MetaborgException("Cannot parse, language for " + file + " could not be identified");
        }
    } else if (idTerm instanceof IStrategoTuple) {
        // No id was set, name is set.
        if (!(nameOrGroupIdTerm instanceof IStrategoString)) {
            throw new MetaborgException("Cannot parse, language name " + nameOrGroupIdTerm + " is not a string");
        }
        final String name = ((IStrategoString) nameOrGroupIdTerm).stringValue();
        final ILanguage lang = languageService.getLanguage(name);
        if (lang == null) {
            throw new MetaborgException("Cannot parse, language " + nameOrGroupIdTerm + " does not exist");
        }
        langImpl = lang.activeImpl();
        if (langImpl == null) {
            throw new MetaborgException("Cannot parse, language " + lang + " has no implementation loaded");
        }
    } else {
        // A groupId, id, and version is set.
        if (!(nameOrGroupIdTerm instanceof IStrategoString)) {
            throw new MetaborgException("Cannot parse, language groupId " + nameOrGroupIdTerm + " is not a string");
        }
        final String groupId = ((IStrategoString) nameOrGroupIdTerm).stringValue();
        if (!(idTerm instanceof IStrategoString)) {
            throw new MetaborgException("Cannot parse, language id " + idTerm + " is not a string");
        }
        final String id = ((IStrategoString) idTerm).stringValue();
        if (!(versionTerm instanceof IStrategoString)) {
            throw new MetaborgException("Cannot parse, language version " + versionTerm + " is not a string");
        }
        final String versionStr = ((IStrategoString) versionTerm).stringValue();
        final LanguageVersion version = LanguageVersion.parse(versionStr);
        final LanguageIdentifier langId = new LanguageIdentifier(groupId, id, version);
        langImpl = languageService.getImpl(langId);
        if (langImpl == null) {
            throw new MetaborgException("Cannot parse, language implementation " + langId + " does not exist");
        }
    }
    // Parse the text.
    final ISpoofaxInputUnit input;
    if (file != null) {
        @Nullable ILanguageImpl dialect;
        try {
            final IdentifiedDialect identifierDialect = dialectIdentifier.identify(file);
            if (identifierDialect != null) {
                dialect = identifierDialect.dialect;
            } else {
                dialect = null;
            }
        } catch (MetaborgException | MetaborgRuntimeException e) {
            // Ignore
            dialect = null;
        }
        input = unitService.inputUnit(file, text, langImpl, dialect);
    } else {
        input = unitService.inputUnit(text, langImpl, null);
    }
    final ISpoofaxParseUnit result = syntaxService.parse(input);
    if (result.valid() && result.success()) {
        return result.ast();
    } else {
        return null;
    }
}

Example 2 with IStrategoInt

use of org.spoofax.interpreter.terms.IStrategoInt in project spoofax by metaborg.

the class OutlineFacetFromESV method create.

@Nullable
public static OutlineFacet create(IStrategoAppl esv) {
    final IStrategoAppl outlineTerm = ESVReader.findTerm(esv, "OutlineView");
    if (outlineTerm == null) {
        return null;
    }
    final String strategyName = ESVReader.termContents(outlineTerm.getSubterm(0));
    final int expandTo;
    final IStrategoAppl expandToTerm = ESVReader.findTerm(esv, "ExpandToLevel");
    if (expandToTerm == null) {
        expandTo = 0;
    } else {
        final IStrategoTerm expandToNumberTerm = expandToTerm.getSubterm(0);
        if (expandToNumberTerm instanceof IStrategoInt) {
            final IStrategoInt expandToNumberIntTerm = (IStrategoInt) expandToNumberTerm;
            expandTo = expandToNumberIntTerm.intValue();
        } else if (expandToNumberTerm instanceof IStrategoString) {
            final IStrategoString expandToNumberStringTerm = (IStrategoString) expandToNumberTerm;
            expandTo = Integer.parseInt(expandToNumberStringTerm.stringValue());
        } else {
            expandTo = 0;
        }
    }
    return new OutlineFacet(strategyName, expandTo);
}

Example 3 with IStrategoInt

use of org.spoofax.interpreter.terms.IStrategoInt in project spoofax by metaborg.

the class JSGLRCompletionService method placeholderCompletions.

public Collection<ICompletion> placeholderCompletions(IStrategoAppl placeholder, String languageName, ILanguageComponent component, FileObject location) throws MetaborgException {
    Collection<ICompletion> completions = Lists.newLinkedList();
    // call Stratego part of the framework to compute change
    final HybridInterpreter runtime = strategoRuntimeService.runtime(component, location, false);
    final ITermFactory termFactory = termFactoryService.get(component, null, false);
    IStrategoTerm placeholderParent = ParentAttachment.getParent(placeholder);
    if (placeholderParent == null) {
        placeholderParent = placeholder;
    }
    IStrategoInt placeholderIdx = termFactory.makeInt(-1);
    for (int i = 0; i < placeholderParent.getSubtermCount(); i++) {
        if (placeholderParent.getSubterm(i) == placeholder) {
            placeholderIdx = termFactory.makeInt(i);
        }
    }
    final String sort = ImploderAttachment.getSort(placeholder);
    final IStrategoTerm strategoInput = termFactory.makeTuple(termFactory.makeString(sort), placeholder, placeholderParent, placeholderIdx);
    final IStrategoTerm proposalsPlaceholder = strategoCommon.invoke(runtime, strategoInput, "get-proposals-placeholder-" + languageName);
    if (proposalsPlaceholder == null) {
        logger.error("Getting proposals for {} failed", placeholder);
        return completions;
    }
    for (IStrategoTerm proposalTerm : proposalsPlaceholder) {
        if (!(proposalTerm instanceof IStrategoTuple)) {
            logger.error("Unexpected proposal term {}, skipping", proposalTerm);
            continue;
        }
        final IStrategoTuple tuple = (IStrategoTuple) proposalTerm;
        if (tuple.getSubtermCount() != 4 || !(tuple.getSubterm(0) instanceof IStrategoString) || !(tuple.getSubterm(1) instanceof IStrategoString) || !(tuple.getSubterm(2) instanceof IStrategoString) || !(tuple.getSubterm(3) instanceof IStrategoAppl)) {
            logger.error("Unexpected proposal term {}, skipping", proposalTerm);
            continue;
        }
        final String name = Tools.asJavaString(tuple.getSubterm(0));
        final String text = Tools.asJavaString(tuple.getSubterm(1));
        final String additionalInfo = Tools.asJavaString(tuple.getSubterm(2));
        final StrategoAppl change = (StrategoAppl) tuple.getSubterm(3);
        if (change.getConstructor().getName().contains("REPLACE_TERM")) {
            final ICompletion completion = createCompletionReplaceTerm(name, text, additionalInfo, change, false, "", "");
            if (completion == null) {
                logger.error("Unexpected proposal term {}, skipping", proposalTerm);
                continue;
            }
            completions.add(completion);
        }
    }
    return completions;
}