pmd / pmd / 519

Committed 14 May 2026 03:18PM UTC coverage: 79.09% (+0.01%) from 79.076%

Build # 519

Build Type

push

github

Committed by

adangel

Commit Message

[java] New rule: VariableDeclarationUsageDistance (#6640)

Coverage Stats

18848 of 24763 branches covered (76.11%)

Branch coverage included in aggregate %.

38 of 38 new or added lines in 3 files covered. (100.0%)

2 existing lines in 1 file now uncovered.

41000 of 50908 relevant lines covered (80.54%)

0.81 hits per line

Source File
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29.17

/pmd-core/src/main/java/net/sourceforge/pmd/lang/metrics/LanguageMetricsProvider.java

/*
 * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
 */

package net.sourceforge.pmd.lang.metrics;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import org.checkerframework.checker.nullness.qual.Nullable;

import net.sourceforge.pmd.lang.LanguageVersionHandler;
import net.sourceforge.pmd.lang.ast.Node;


/**
 * Language-specific provider for metrics. Knows about all the metrics
 * defined for a language. Can be used e.g. to build GUI applications
 * like the designer, in a language independent way. Accessible through
 * {@link LanguageVersionHandler#getLanguageMetricsProvider()}.
 *
 *
 * @author Clément Fournier
 * @since 6.11.0
 */
public interface LanguageMetricsProvider {

    /** Returns the set of all metrics supported by the language. */
    Set<Metric<?, ?>> getMetrics();


    /** Fetch a metric using its name. */
    default @Nullable Metric<?, ?> getMetricWithName(String nameIgnoringCase) {
        for (Metric<?, ?> metric : getMetrics()) {
            for (String nameAlias : metric.nameAliases()) {
                if (nameAlias.equalsIgnoreCase(nameIgnoringCase)) {
                    return metric;
                }
            }
        }
        return null;
    }

    /**
     * Computes all metrics available on the given node.
     * The returned results may contain Double.NaN as a value.
     *
     * @param node Node to inspect
     *
     * @return A map of metric key to their result, possibly empty, but with no null value
     */
    default Map<Metric<?, ?>, Number> computeAllMetricsFor(Node node) {
        Map<Metric<?, ?>, Number> results = new HashMap<>();
        for (Metric<?, ?> metric : getMetrics()) {
            @Nullable Number result = Metric.compute(metric, node, MetricOptions.emptyOptions());
            if (result != null) {
                results.put(metric, result);
            }
        }
        return results;
    }
}

1	/*
2	* BSD-style license; for more info see http://pmd.sourceforge.net/license.html
3	*/
4
5	package net.sourceforge.pmd.lang.metrics;
6
7	import java.util.HashMap;
8	import java.util.Map;
9	import java.util.Set;
10
11	import org.checkerframework.checker.nullness.qual.Nullable;
12
13	import net.sourceforge.pmd.lang.LanguageVersionHandler;
14	import net.sourceforge.pmd.lang.ast.Node;
15
16
17	/**
18	* Language-specific provider for metrics. Knows about all the metrics
19	* defined for a language. Can be used e.g. to build GUI applications
20	* like the designer, in a language independent way. Accessible through
21	* {@link LanguageVersionHandler#getLanguageMetricsProvider()}.
22	*
23	*
24	* @author Clément Fournier
25	* @since 6.11.0
26	*/
27	public interface LanguageMetricsProvider {
28
29	/** Returns the set of all metrics supported by the language. */
30	Set<Metric<?, ?>> getMetrics();
31
32
33	/** Fetch a metric using its name. */
34	default @Nullable Metric<?, ?> getMetricWithName(String nameIgnoringCase) {
35	for (Metric<?, ?> metric : getMetrics()) {	1!
36	for (String nameAlias : metric.nameAliases()) {	1!
37	if (nameAlias.equalsIgnoreCase(nameIgnoringCase)) {	1!
38	return metric;	1✔
39	}
UNCOV 40	}	×
UNCOV 41	}	×
42	return null;	×
43	}
44
45	/**
46	* Computes all metrics available on the given node.
47	* The returned results may contain Double.NaN as a value.
48	*
49	* @param node Node to inspect
50	*
51	* @return A map of metric key to their result, possibly empty, but with no null value
52	*/
53	default Map<Metric<?, ?>, Number> computeAllMetricsFor(Node node) {
54	Map<Metric<?, ?>, Number> results = new HashMap<>();	×
55	for (Metric<?, ?> metric : getMetrics()) {	×
56	@Nullable Number result = Metric.compute(metric, node, MetricOptions.emptyOptions());	×
57	if (result != null) {	×
58	results.put(metric, result);	×
59	}
60	}	×
61	return results;	×
62	}
63	}

pmd / pmd / 519

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