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A more memory efficient directives container#4027
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bbakerman
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Jun 28, 2025
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This was terribly memory inefficient
bbakerman
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Jun 28, 2025
| * @return the directives or empty list if there is not one with that name | ||
| */ | ||
| default List<Directive> getDirectives(String directiveName) { | ||
| return getDirectivesByName().getOrDefault(directiveName, emptyList()); |
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This was terribly memory inefficient
bbakerman
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Jun 28, 2025
| * @return true if the AST node contains one or more directives by the specified name | ||
| */ | ||
| default boolean hasDirective(String directiveName) { | ||
| return !getDirectives(directiveName).isEmpty(); |
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This was terribly memory inefficient
bbakerman
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Jun 28, 2025
| @@ -34,20 +34,16 @@ public interface DirectivesContainer<T extends DirectivesContainer> extends Node | |||
| * | |||
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We no longer have default methods - but rather a memory efficient DirectivesHolder helper
bbakerman
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Jun 28, 2025
| NodeChildrenContainer newChildren = namedChildren.transform(builder -> builder.removeChild(childLocationToRemove.getName(), childLocationToRemove.getIndex())); | ||
| return node.withNewChildren(newChildren); | ||
| } | ||
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Our new helper thats immutable and more memory efficient
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When we wrote the
graphql.language.DirectivesContainerwe put default methods on it to save code in each language element that implemented itBut because interfaces cant have state, then it we doing a per "group by" etc... when each call was made.
This introduces a
DirectivesHolderhelper class (like we do in the runtime viagraphql.DirectivesUtil.DirectivesHolder) that holds the immutable state and helps each implementing class implement theDirectivesContainermethodsSo while there is more code in each, it more efficient than the
defaultinterface methods