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Performance fix: added capacity parameter in ArrayLists #648

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merged 1 commit into from
Sep 3, 2019
Merged

Performance fix: added capacity parameter in ArrayLists #648

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Performance fix: added capacity parameter in ArrayLists contructor wh… 
…en adding elements
  • Loading branch information
@widgetii
widgetii committed Sep 3, 2019
commit 44daaf87fab28bbd5e8703a85f4cfbacc8a76666
2 changes: 1 addition & 1 deletion config/src/main/java/com/typesafe/config/impl/ConfigParser.java
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Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,7 @@ private AbstractConfigValue parseConcatenation(ConfigNodeConcatenation n) {
if (flavor == ConfigSyntax.JSON)
throw new ConfigException.BugOrBroken("Found a concatenation node in JSON");

List<AbstractConfigValue> values = new ArrayList<AbstractConfigValue>();
List<AbstractConfigValue> values = new ArrayList<AbstractConfigValue>(n.children().size());

for (AbstractConfigNode node : n.children()) {
AbstractConfigValue v = null;
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2 changes: 1 addition & 1 deletion config/src/main/java/com/typesafe/config/impl/SimpleConfigOrigin.java
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Expand Up @@ -364,7 +364,7 @@ static ConfigOrigin mergeOrigins(Collection<? extends ConfigOrigin> stack) {
Iterator<? extends ConfigOrigin> i = stack.iterator();
return mergeTwo((SimpleConfigOrigin) i.next(), (SimpleConfigOrigin) i.next());
} else {
List<SimpleConfigOrigin> remaining = new ArrayList<SimpleConfigOrigin>();
List<SimpleConfigOrigin> remaining = new ArrayList<SimpleConfigOrigin>(stack.size());
for (ConfigOrigin o : stack) {
remaining.add((SimpleConfigOrigin) o);
}
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