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

Example 26 with IStrategoTerm

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

the class JSGLRCompletionService method get.

@Override
public Iterable<ICompletion> get(int position, ISpoofaxParseUnit parseInput, boolean nested) throws MetaborgException {
    ISpoofaxParseUnit completionParseResult = null;
    if (!nested && !parseInput.success()) {
        final JSGLRParserConfiguration config = new JSGLRParserConfiguration(true, true, true, 3000, position);
        final ISpoofaxInputUnit input = parseInput.input();
        final ISpoofaxInputUnit modifiedInput = unitService.inputUnit(input.source(), input.text(), input.langImpl(), input.dialect(), config);
        completionParseResult = syntaxService.parse(modifiedInput);
    }
    Collection<ICompletion> completions = Lists.newLinkedList();
    // Completion in case of empty input
    String inputText = parseInput.input().text();
    if (inputText.trim().isEmpty()) {
        final ILanguageImpl language = parseInput.input().langImpl();
        final FileObject location = parseInput.source();
        final Iterable<String> startSymbols = language.facet(SyntaxFacet.class).startSymbols;
        completions.addAll(completionEmptyProgram(startSymbols, inputText.length(), language, location));
        return completions;
    }
    if (completionParseResult != null && completionParseResult.ast() == null) {
        return completions;
    }
    Collection<IStrategoTerm> nestedCompletionTerms = getNestedCompletionTermsFromAST(completionParseResult);
    Collection<IStrategoTerm> completionTerms = getCompletionTermsFromAST(completionParseResult);
    boolean blankLineCompletion = isCompletionBlankLine(position, parseInput.input().text());
    if (!completionTerms.isEmpty()) {
        completions.addAll(completionErroneousPrograms(position, completionTerms, completionParseResult));
    }
    if (!nestedCompletionTerms.isEmpty()) {
        completions.addAll(completionErroneousProgramsNested(position, nestedCompletionTerms, completionParseResult));
    }
    if (completionTerms.isEmpty() && nestedCompletionTerms.isEmpty()) {
        completions.addAll(completionCorrectPrograms(position, blankLineCompletion, parseInput));
    }
    return completions;
}

Example 27 with IStrategoTerm

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

the class JSGLRCompletionService method recursiveCompletions.

private Collection<? extends ICompletion> recursiveCompletions(Iterable<IStrategoTerm> leftRecursive, Iterable<IStrategoTerm> rightRecursive, 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);
    for (IStrategoTerm term : leftRecursive) {
        IStrategoTerm sort = termFactory.makeString(ImploderAttachment.getSort(term));
        final IStrategoTerm strategoInput = termFactory.makeTuple(sort, term);
        IStrategoTerm proposals = null;
        try {
            proposals = strategoCommon.invoke(runtime, strategoInput, "get-proposals-left-recursive-" + languageName);
        } catch (Exception e) {
            logger.error("Getting proposals for {} failed", term);
            continue;
        }
        if (proposals == null) {
            logger.error("Getting proposals for {} failed", term);
            continue;
        }
        for (IStrategoTerm proposalTerm : proposals) {
            final IStrategoTuple tuple = (IStrategoTuple) proposalTerm;
            if (tuple.getSubtermCount() != 5 || !(tuple.getSubterm(0) instanceof IStrategoString) || !(tuple.getSubterm(1) instanceof IStrategoString) || !(tuple.getSubterm(2) instanceof IStrategoString) || !(tuple.getSubterm(3) instanceof IStrategoAppl) || !(tuple.getSubterm(4) instanceof IStrategoString)) {
                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);
            final String prefix = Tools.asJavaString(tuple.getSubterm(4));
            if (change.getConstructor().getName().contains("REPLACE_TERM")) {
                final ICompletion completion = createCompletionReplaceTerm(name, text, additionalInfo, change, false, prefix, "");
                if (completion == null) {
                    logger.error("Unexpected proposal term {}, skipping", proposalTerm);
                    continue;
                }
                completions.add(completion);
            }
        }
    }
    for (IStrategoTerm term : rightRecursive) {
        IStrategoTerm sort = termFactory.makeString(ImploderAttachment.getSort(term));
        final IStrategoTerm strategoInput = termFactory.makeTuple(sort, term);
        IStrategoTerm proposals = null;
        try {
            proposals = strategoCommon.invoke(runtime, strategoInput, "get-proposals-right-recursive-" + languageName);
        } catch (Exception e) {
            logger.error("Getting proposals for {} failed", term);
            continue;
        }
        if (proposals == null) {
            logger.error("Getting proposals for {} failed", term);
            continue;
        }
        for (IStrategoTerm proposalTerm : proposals) {
            final IStrategoTuple tuple = (IStrategoTuple) proposalTerm;
            if (tuple.getSubtermCount() != 5 || !(tuple.getSubterm(0) instanceof IStrategoString) || !(tuple.getSubterm(1) instanceof IStrategoString) || !(tuple.getSubterm(2) instanceof IStrategoString) || !(tuple.getSubterm(3) instanceof IStrategoAppl) || !(tuple.getSubterm(4) instanceof IStrategoString)) {
                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);
            final String suffix = Tools.asJavaString(tuple.getSubterm(4));
            if (change.getConstructor().getName().contains("REPLACE_TERM")) {
                final ICompletion completion = createCompletionReplaceTerm(name, text, additionalInfo, change, false, "", suffix);
                if (completion == null) {
                    logger.error("Unexpected proposal term {}, skipping", proposalTerm);
                    continue;
                }
                completions.add(completion);
            }
        }
    }
    return completions;
}

Example 28 with IStrategoTerm

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

the class JSGLRCompletionService method getNestedCompletionTermsFromAST.

private Collection<IStrategoTerm> getNestedCompletionTermsFromAST(ISpoofaxParseUnit completionParseResult) {
    if (completionParseResult == null) {
        return Lists.newLinkedList();
    }
    StrategoAppl ast = (StrategoAppl) completionParseResult.ast();
    if (ast == null) {
        return Lists.newLinkedList();
    }
    Collection<IStrategoTerm> completionTerm = findNestedCompletionTerm(ast, false);
    return completionTerm;
}

Example 29 with IStrategoTerm

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

the class JSGLRCompletionService method listsCompletions.

public Collection<ICompletion> listsCompletions(int position, boolean blankLineCompletion, Iterable<IStrategoList> lists, String languageName, ILanguageComponent component, FileObject location) throws MetaborgException {
    Collection<ICompletion> completions = Lists.newLinkedList();
    final ITermFactory termFactory = termFactoryService.get(component, null, false);
    for (IStrategoList list : lists) {
        ListImploderAttachment attachment = list.getAttachment(null);
        String sort = attachment.getSort().substring(0, attachment.getSort().length() - 1);
        String placeholderName = sort + "-Plhdr";
        IStrategoAppl listPlaceholder = termFactory.makeAppl(termFactory.makeConstructor(placeholderName, 0));
        final IStrategoTerm strategoInput = termFactory.makeTuple(termFactory.makeString(sort), list, listPlaceholder, termFactory.makeInt(position));
        final HybridInterpreter runtime = strategoRuntimeService.runtime(component, location, false);
        final IStrategoTerm proposalsLists = strategoCommon.invoke(runtime, strategoInput, "get-proposals-list-" + languageName);
        if (proposalsLists == null) {
            logger.error("Getting proposals for {} failed", strategoInput);
            continue;
        }
        for (IStrategoTerm proposalTerm : proposalsLists) {
            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 the change is inserting at the end of a list
            if (change.getConstructor().getName().contains("INSERT_AT_END")) {
                final ICompletion completion = createCompletionInsertAtEnd(name, text, additionalInfo, change, blankLineCompletion);
                if (completion == null) {
                    logger.error("Unexpected proposal term {}, skipping", proposalTerm);
                    continue;
                }
                completions.add(completion);
            } else if (change.getConstructor().getName().contains("INSERT_BEFORE")) {
                final ICompletion completion = createCompletionInsertBefore(name, text, additionalInfo, change);
                if (completion == null) {
                    logger.error("Unexpected proposal term {}, skipping", proposalTerm);
                    continue;
                }
                completions.add(completion);
            }
        }
    }
    return completions;
}

Example 30 with IStrategoTerm

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

the class JSGLRCompletionService method findPlaceholderTerms.

private Collection<IStrategoTerm> findPlaceholderTerms(IStrategoTerm ast) {
    final Collection<IStrategoTerm> placeholderTerms = Lists.newLinkedList();
    final IStrategoTermVisitor visitor = new AStrategoTermVisitor() {

        @Override
        public boolean visit(IStrategoTerm term) {
            if (term instanceof IStrategoAppl) {
                IStrategoAppl appl = (IStrategoAppl) term;
                if (appl.getConstructor().getName().contains("-Plhdr") && appl.getSubtermCount() > 0) {
                    placeholderTerms.add(appl);
                    return false;
                }
            }
            return true;
        }
    };
    StrategoTermVisitee.topdown(visitor, ast);
    return placeholderTerms;
}