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| author | Cliff Click <cliffc@acm.org> | 2024-05-29 12:39:56 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-05-29 20:39:56 +0100 |
| commit | d91dc657cce857d90389eefd9dd62d7c00ee0710 (patch) | |
| tree | 6ef8427aa0535b1b568bf2e357d2909d38fbd334 /chapter10/src/main/java/com | |
| parent | 492786481ed69edb847f5ebfa9a24a95d08aedb8 (diff) | |
| download | Simple-d91dc657cce857d90389eefd9dd62d7c00ee0710.tar.gz Simple-d91dc657cce857d90389eefd9dd62d7c00ee0710.zip | |
Add a minor peep to settle a CCC discussion (#82)
* Add a minor peep to settle a CCC discussion
* remove junk test
Diffstat (limited to 'chapter10/src/main/java/com')
| -rw-r--r-- | chapter10/src/main/java/com/seaofnodes/simple/node/SubNode.java | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/chapter10/src/main/java/com/seaofnodes/simple/node/SubNode.java b/chapter10/src/main/java/com/seaofnodes/simple/node/SubNode.java index 760177d7..7be53b68 100644 --- a/chapter10/src/main/java/com/seaofnodes/simple/node/SubNode.java +++ b/chapter10/src/main/java/com/seaofnodes/simple/node/SubNode.java @@ -39,6 +39,10 @@ public class SubNode extends Node { if( in(2) instanceof MinusNode minus ) return new AddNode(in(1),minus.in(1)); + // (-x) - y is -(x+y) + if( in(1) instanceof MinusNode minus ) + return new MinusNode(new AddNode(minus.in(1),in(2)).peephole()); + return null; } |