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    • smallcheck.generators.ParamGen Maven / Gradle / Ivy

    The newest version!
    package smallcheck.generators;

import java.lang.reflect.Parameter;
import java.util.Arrays;
import java.util.stream.Stream;

/**
 *
 */
public class ParamGen {
    public static Stream generate(GenFactory genFactory, Parameter[] parameters, int depth) {
        return generate(genFactory, parameters, depth, parameters.length-1);
    }

    private static Stream generate(GenFactory genFactory, Parameter[] parameters, int depth, int pos) {
        if (pos < 0) {
            return Stream.of(new Object[0]);
        }
        Parameter p = parameters[pos];

        @SuppressWarnings("unchecked")
        SeriesGen seriesGen = (SeriesGen) genFactory.genForType(p.getAnnotatedType());

        return seriesGen.generate(depth).flatMap(o ->
                generate(genFactory, parameters, depth, pos - 1).map(os -> {
                    Object[] res = Arrays.copyOf(os, os.length + 1);
                    res[pos] = seriesGen.copy(o);
                    return res;
                }));
    }
}
    
    
    
    

    




    
    
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