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Speed-up generation of debug information

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This commit is contained in:
Alexey Andreev 2015-03-06 13:07:37 +04:00
parent 852589a4dd
commit 8d2e012f79
1 changed files with 28 additions and 2 deletions
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30
teavm-core/src/main/java/org/teavm/debugging/information/DebugInformation.java
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@ -386,7 +386,7 @@ public class DebugInformation {
}
private int indexByKey(RecordArray mapping, GeneratedLocation location) {
int index = Collections.binarySearch(new LocationList(mapping), location);
int index = binarySearchLocation(mapping, location.getLine(), location.getColumn());
return index >= 0 ? index : -index - 2;
}
@ -598,7 +598,33 @@ public class DebugInformation {
return new GeneratedLocation(record.get(0), record.get(1));
}
static class LocationList extends AbstractList<GeneratedLocation> {
private int binarySearchLocation(RecordArray array, int row, int column) {
int l = 0;
int u = array.size() - 1;
while (true) {
int i = (l + u) / 2;
RecordArray.Record e = array.get(i);
int cmp = Integer.compare(row, e.get(0));
if (cmp == 0) {
cmp = Integer.compare(column, e.get(1));
}
if (cmp == 0) {
return i;
} else if (cmp < 0) {
u = i - 1;
if (u < l) {
return -i - 1;
}
} else {
l = i + 1;
if (l > u) {
return -i - 2;
}
}
}
}
static class LocationList extends AbstractList<GeneratedLocation> implements RandomAccess {
private RecordArray recordArray;
public LocationList(RecordArray recordArray) {