Examples with Language org.graalvm.polyglot.Language used on opensource projects

Example 6 with Language

use of org.graalvm.polyglot.Language in project graal by oracle.

the class Launcher method printLanguages.

private static void printLanguages(Engine engine, boolean printWhenEmpty) {
    if (engine.getLanguages().isEmpty()) {
        if (printWhenEmpty) {
            System.out.println("  Installed Languages: none");
        }
    } else {
        System.out.println("  Installed Languages:");
        List<Language> languages = new ArrayList<>(engine.getLanguages().size());
        int nameLength = 0;
        for (Language language : engine.getLanguages().values()) {
            languages.add(language);
            nameLength = max(nameLength, language.getName().length());
        }
        languages.sort(Comparator.comparing(Language::getId));
        String langFormat = "    %-" + nameLength + "s%s version %s%n";
        for (Language language : languages) {
            String host;
            host = "";
            String version = language.getVersion();
            if (version == null || version.length() == 0) {
                version = "";
            }
            System.out.printf(langFormat, language.getName().isEmpty() ? "Unnamed" : language.getName(), host, version);
        }
    }
}

Example 7 with Language

use of org.graalvm.polyglot.Language in project graal by oracle.

the class PolyglotLauncher method printHelp.

@Override
protected void printHelp(OptionCategory maxCategory) {
    Engine engine = Engine.create();
    // @formatter:off
    printVersion(engine);
    System.out.println();
    System.out.println("Usage: polyglot [OPTION]... [FILE] [ARGS]...");
    List<Language> languages = sortedLanguages(engine);
    System.out.print("Available languages: ");
    String sep = "";
    for (Language language : languages) {
        System.out.print(sep);
        System.out.print(language.getId());
        sep = ", ";
    }
    System.out.println();
    System.out.println("Basic Options:");
    printOption("--language <lang>", "Specifies the main language.");
    printOption("--file [<lang>:]FILE", "Additional file to execute.");
    printOption("--eval [<lang>:]CODE", "Evaluates code snippets, for example, '--eval js:42'.");
    printOption("--shell", "Start a multi language shell.");
// @formatter:on
}

Example 8 with Language

use of org.graalvm.polyglot.Language in project graal by oracle.

the class EvalLauncher method printHelp.

private static void printHelp(OptionCategory maxCategory) {
    Engine engine = Engine.create();
    System.out.println(BASIC_HELP);
    System.out.println("Engine options: ");
    for (OptionDescriptor descriptor : engine.getOptions()) {
        printOption(maxCategory, descriptor);
    }
    System.out.println("Language options: ");
    for (String languageId : engine.getLanguages().keySet()) {
        Language language = engine.getLanguage(languageId);
        for (OptionDescriptor descriptor : language.getOptions()) {
            printOption(maxCategory, descriptor);
        }
    }
    System.out.println("Tool options: ");
    for (String instrumentId : engine.getInstruments().keySet()) {
        Instrument instrument = engine.getInstrument(instrumentId);
        for (OptionDescriptor descriptor : instrument.getOptions()) {
            printOption(maxCategory, descriptor);
        }
    }
}

Example 9 with Language

use of org.graalvm.polyglot.Language in project graal by oracle.

the class AbstractLanguageLauncher method printVersion.

protected void printVersion(Engine engine) {
    String languageId = getLanguageId();
    Language language = engine.getLanguages().get(languageId);
    if (language == null) {
        throw abort(String.format("Unknown language: '%s'!", languageId));
    }
    String implementationName = language.getImplementationName();
    if (implementationName == null || implementationName.length() == 0) {
        String languageName = language.getName();
        if (languageName == null || languageName.length() == 0) {
            languageName = languageId;
        }
        implementationName = "Graal " + languageName;
    }
    System.out.println(String.format("%s %s (GraalVM %s)", implementationName, language.getVersion(), engine.getVersion()));
}

Example 10 with Language

use of org.graalvm.polyglot.Language in project graal by oracle.

the class PolyglotEngineImpl method requirePublicLanguage.

@Override
public Language requirePublicLanguage(String id) {
    checkState();
    Language language = idToPublicLanguage.get(id);
    if (language == null) {
        String misspelledGuess = matchSpellingError(idToPublicLanguage.keySet(), id);
        String didYouMean = "";
        if (misspelledGuess != null) {
            didYouMean = String.format("Did you mean '%s'? ", misspelledGuess);
        }
        throw new PolyglotIllegalStateException(String.format("A language with id '%s' is not installed. %sInstalled languages are: %s.", id, didYouMean, getLanguages().keySet()));
    }
    return language;
}