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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package compiler.lib.ir_framework.driver.irmatching.mapping;

import compiler.lib.ir_framework.CompilePhase;

/**
 * This class represents a mapping entry for an IR node that maps to a single regex for multiple continuous compile
 * phases (i.e. follow each other immediately in the order defined in {@link CompilePhase}). This is done by providing
 * a start and an end compile phase which is put into a {@link PhaseInterval}. An IR node mapping to different regexes
 * for different intervals should use {@link MultiPhaseRangeEntry}.
 *
 * @see CompilePhase
 * @see PhaseInterval
 * @see MultiPhaseRangeEntry
 */
public class SinglePhaseRangeEntry implements IRNodeMapEntry {
    private final SingleRegexEntry singleRegexEntry;
    private final PhaseInterval interval;

    public SinglePhaseRangeEntry(CompilePhase defaultCompilePhase, String regex, CompilePhase start, CompilePhase end) {
        this.interval = new PhaseInterval(start, end);
        this.singleRegexEntry = new SingleRegexEntry(defaultCompilePhase, regex);
    }

    @Override
    public String regexForCompilePhase(CompilePhase compilePhase) {
        if (interval.includes(compilePhase)) {
            // start <= phase <= end
            return singleRegexEntry.regex();
        }
        return null;
    }

    @Override
    public CompilePhase defaultCompilePhase() {
        return singleRegexEntry.defaultCompilePhase();
    }
}