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| author | Timothy Hoffman <4001421+tim-hoffman@users.noreply.github.com> | 2021-07-16 13:29:45 -0500 |
|---|---|---|
| committer | Timothy Hoffman <4001421+tim-hoffman@users.noreply.github.com> | 2021-07-16 13:29:45 -0500 |
| commit | aeee909ea7a5c12c591301e346a1da12c6e356f6 (patch) | |
| tree | aff464d194dddfff23564b795ca9ed59bb9facc9 | |
| parent | 047f7c71be30d1fce5773c8e9c014052acac14df (diff) | |
| download | javassist-aeee909ea7a5c12c591301e346a1da12c6e356f6.tar.gz javassist-aeee909ea7a5c12c591301e346a1da12c6e356f6.zip | |
Replace array copy loop with System.arraycopy
| -rw-r--r-- | src/main/javassist/bytecode/StackMapTable.java | 12 | ||||
| -rw-r--r-- | src/main/javassist/bytecode/stackmap/MapMaker.java | 3 |
2 files changed, 10 insertions, 5 deletions
diff --git a/src/main/javassist/bytecode/StackMapTable.java b/src/main/javassist/bytecode/StackMapTable.java index 62a6aca0..4fed2010 100644 --- a/src/main/javassist/bytecode/StackMapTable.java +++ b/src/main/javassist/bytecode/StackMapTable.java @@ -912,9 +912,15 @@ public class StackMapTable extends AttributeInfo { static byte[] insertGap(byte[] info, int where, int gap) { int len = info.length; byte[] newinfo = new byte[len + gap]; - for (int i = 0; i < len; i++) - newinfo[i + (i < where ? 0 : gap)] = info[i]; - + if (where <= 0) { + System.arraycopy(info, 0, newinfo, gap, len); + } else if (where >= len) { + System.arraycopy(info, 0, newinfo, 0, len); + } else { + assert (where > 0 && where < len); + System.arraycopy(info, 0, newinfo, 0, where); + System.arraycopy(info, where, newinfo, where + gap, len - where); + } return newinfo; } diff --git a/src/main/javassist/bytecode/stackmap/MapMaker.java b/src/main/javassist/bytecode/stackmap/MapMaker.java index bd79377f..d016a3be 100644 --- a/src/main/javassist/bytecode/stackmap/MapMaker.java +++ b/src/main/javassist/bytecode/stackmap/MapMaker.java @@ -309,8 +309,7 @@ public class MapMaker extends Tracer { } protected static void copyTypeData(int n, TypeData[] srcTypes, TypeData[] destTypes) { - for (int i = 0; i < n; i++) - destTypes[i] = srcTypes[i]; + System.arraycopy(srcTypes, 0, destTypes, 0, n); } private static TypeData validateTypeData(TypeData[] data, int length, int index) { |