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f00727c57e
Co-authored-by: Bjarne Koll <git@lynxplay.dev> Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com> Co-authored-by: Lulu13022002 <41980282+Lulu13022002@users.noreply.github.com> Co-authored-by: MiniDigger | Martin <admin@minidigger.dev> Co-authored-by: Nassim Jahnke <nassim@njahnke.dev> Co-authored-by: Noah van der Aa <ndvdaa@gmail.com> Co-authored-by: Owen1212055 <23108066+Owen1212055@users.noreply.github.com> Co-authored-by: Shane Freeder <theboyetronic@gmail.com> Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com> Co-authored-by: Tamion <70228790+notTamion@users.noreply.github.com> Co-authored-by: Warrior <50800980+Warriorrrr@users.noreply.github.com>
40 lines
1.5 KiB
Diff
40 lines
1.5 KiB
Diff
--- a/net/minecraft/util/parsing/packrat/Scope.java
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+++ b/net/minecraft/util/parsing/packrat/Scope.java
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@@ -281,4 +_,36 @@
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return true;
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}
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+
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+ // Paper start - track depth
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+ private int depth;
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+ @SuppressWarnings({"unchecked","rawtypes"})
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+ public static <S> Term<S> increaseDepth() {
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+ class IncreasingDepthTerm<W> implements Term<W> {
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+ public static final IncreasingDepthTerm INSTANCE = new IncreasingDepthTerm();
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+ @Override
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+ public boolean parse(final ParseState<W> parseState, final Scope scope, final Control control) {
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+ if (++scope.depth > 512) {
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+ parseState.errorCollector().store(parseState.mark(), new IllegalStateException("Too deep"));
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+ return false;
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+ }
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+ return true;
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+ }
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+ }
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+ return (Term<S>) IncreasingDepthTerm.INSTANCE;
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+ }
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+
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+ @SuppressWarnings({"unchecked","rawtypes"})
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+ public static <S> Term<S> decreaseDepth() {
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+ class DecreasingDepthTerm<W> implements Term<W> {
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+ public static final DecreasingDepthTerm INSTANCE = new DecreasingDepthTerm();
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+ @Override
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+ public boolean parse(final ParseState<W> parseState, final Scope scope, final Control control) {
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+ scope.depth--;
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+ return true;
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+ }
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+ }
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+ return (Term<S>) DecreasingDepthTerm.INSTANCE;
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+ }
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+ // Paper end - track depth
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}
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