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cache source positions to speedup frame loading when stepping

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This commit is contained in:
Egor.Ushakov
2016-07-20 20:14:03 +03:00
parent d62aee954c
commit b4924c4325
1 changed files with 3 additions and 22 deletions
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java/debugger/impl/src/com/intellij/debugger/engine/CompoundPositionManager.java
+3 -22
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@@ -36,10 +36,7 @@ import com.sun.jdi.request.ClassPrepareRequest;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.*;
public class CompoundPositionManager extends PositionManagerEx implements MultiRequestPositionManager{
private static final Logger LOG = Logger.getInstance(CompoundPositionManager.class);
@@ -57,9 +54,10 @@ public class CompoundPositionManager extends PositionManagerEx implements MultiR
public void appendPositionManager(PositionManager manager) {
myPositionManagers.remove(manager);
myPositionManagers.add(0, manager);
mySourcePositionCache.clear();
}
private final Cache<Location, SourcePosition> mySourcePositionCache = new Cache<>();
private final Map<Location, SourcePosition> mySourcePositionCache = new WeakHashMap<>();
private interface Processor<T> {
T process(PositionManager positionManager) throws NoDataException;
@@ -196,21 +194,4 @@ public class CompoundPositionManager extends PositionManagerEx implements MultiR
}
return ThreeState.UNSURE;
}
private static class Cache<K,V> {
private K myKey;
private V myValue;
public V get(@NotNull K key) {
if (key.equals(myKey)) {
return myValue;
}
return null;
}
public void put(@NotNull K key, V value) {
myKey = key;
myValue = value;
}
}
}