Examples of org.codehaus.groovy.runtime.callsite.BooleanClosureWrapper

Package org.codehaus.groovy.runtime.callsite

Examples of org.codehaus.groovy.runtime.callsite.BooleanClosureWrapper

org.codehaus.groovy.runtime.callsite.BooleanClosureWrapper
Helper class for internal use only. This allows to call a {@link Closure} and convert the result to a boolean. It will do this by caching the possible "doCall" as well as the "asBoolean" in CallSiteArray fashion. "asBoolean" will not be called if the result is null or a Boolean. In case of null we return false and in case of a Boolean we simply unbox. This logic is designed after the one present in {@link org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation#castToBoolean(Object)}. The purpose of this class is to avoid the slow "asBoolean" call in that method. {@link BooleanReturningMethodInvoker} is used for caching. @author Jochen "blackdrag" Theodorou

     *         evaluates to true for each element dropped from the front of the array
     * @since 1.8.7
     */
    public static <T> T[] dropWhile(T[] self, @ClosureParams(FirstParam.Component.class) Closure<?> condition) {
        int num = 0;
        BooleanClosureWrapper bcw = new BooleanClosureWrapper(condition);
        while (num < self.length) {
            if (bcw.call(self[num])) {
                num += 1;
            } else {
                break;
            }
        }

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     * @since 1.5.0
     */
    public static int findIndexOf(Object self, int startIndex, Closure closure) {
        int result = -1;
        int i = 0;
        BooleanClosureWrapper bcw = new BooleanClosureWrapper(closure);
        for (Iterator iter = InvokerHelper.asIterator(self); iter.hasNext(); i++) {
            Object value = iter.next();
            if (i < startIndex) {
                continue;
            }
            if (bcw.call(value)) {
                result = i;
                break;
            }
        }
        return result;

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     * @since 1.5.2
     */
    public static int findLastIndexOf(Object self, int startIndex, Closure closure) {
        int result = -1;
        int i = 0;
        BooleanClosureWrapper bcw = new BooleanClosureWrapper(closure);
        for (Iterator iter = InvokerHelper.asIterator(self); iter.hasNext(); i++) {
            Object value = iter.next();
            if (i < startIndex) {
                continue;
            }
            if (bcw.call(value)) {
                result = i;
            }
        }
        return result;
    }

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     */
    public static List<Number> findIndexValues(Object self, Number startIndex, Closure closure) {
        List<Number> result = new ArrayList<Number>();
        long count = 0;
        long startCount = startIndex.longValue();
        BooleanClosureWrapper bcw = new BooleanClosureWrapper(closure);
        for (Iterator iter = InvokerHelper.asIterator(self); iter.hasNext(); count++) {
            Object value = iter.next();
            if (count < startCount) {
                continue;
            }
            if (bcw.call(value)) {
                result.add(count);
            }
        }
        return result;
    }

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