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package com.fitbur.mockito.bytebuddy.matcher;

/**
 * A list item matcher matches any element of a collection to a given matcher and assures that at least one
 * element matches the supplied iterable condition.
 *
 * @param  The type of the matched entity.
 */
public class CollectionItemMatcher extends ElementMatcher.Junction.AbstractBase> {

    /**
     * The element matcher to apply to each element of a collection.
     */
    private final ElementMatcher matcher;

    /**
     * Creates a new matcher that applies another matcher to each element of a matched iterable collection.
     *
     * @param matcher The element matcher to apply to each element of a iterable collection.
     */
    public CollectionItemMatcher(ElementMatcher matcher) {
        this.matcher = matcher;
    }

    @Override
    public boolean matches(Iterable target) {
        for (T value : target) {
            if (matcher.matches(value)) {
                return true;
            }
        }
        return false;
    }

    @Override
    public boolean equals(Object other) {
        return this == other || !(other == null || getClass() != other.getClass())
                && matcher.equals(((CollectionItemMatcher) other).matcher);
    }

    @Override
    public int hashCode() {
        return matcher.hashCode();
    }

    @Override
    public String toString() {
        return "whereOne(" + matcher + ")";
    }
}