Examples with Strategy org.spoofax.interpreter.stratego.Strategy used on opensource projects

Example 1 with Strategy

use of org.spoofax.interpreter.stratego.Strategy in project nabl by metaborg.

the class ScopeGraphContextPrimitive method call.

@Override
public final boolean call(IContext env, Strategy[] svars, IStrategoTerm[] tvars) throws InterpreterException {
    final Object contextObj = env.contextObject();
    if (contextObj == null) {
        logger.warn("Context is null.");
        return false;
    }
    if (!(contextObj instanceof IScopeGraphContext)) {
        throw new InterpreterException("Context does not implement IScopeGraphContext");
    }
    final IScopeGraphContext<?> context = (IScopeGraphContext<?>) env.contextObject();
    List<IStrategoTerm> termArgs = Arrays.asList(tvars);
    Optional<? extends IStrategoTerm> result;
    try (IClosableLock lock = context.guard()) {
        result = call(context, env.current(), termArgs, env.getFactory());
    }
    return result.map(t -> {
        env.setCurrent(t);
        return true;
    }).orElse(false);
}