diff options
Diffstat (limited to 'chapter19/src/main/java')
| -rw-r--r-- | chapter19/src/main/java/com/seaofnodes/simple/node/Node.java | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/chapter19/src/main/java/com/seaofnodes/simple/node/Node.java b/chapter19/src/main/java/com/seaofnodes/simple/node/Node.java index bbf1ebe9..5d099785 100644 --- a/chapter19/src/main/java/com/seaofnodes/simple/node/Node.java +++ b/chapter19/src/main/java/com/seaofnodes/simple/node/Node.java @@ -221,7 +221,7 @@ public abstract class Node { } // Breaks the edge invariants, used temporarily - protected <N extends Node> N addUse(Node n) { _outputs.add(n); return (N)this; } + protected <N extends Node> void addUse(N n) { _outputs.add(n); } // Remove node 'use' from 'def's (i.e. our) output list, by compressing the list in-place. // Return true if the output list is empty afterward. @@ -267,12 +267,9 @@ public abstract class Node { // Shortcuts to stop DCE mid-parse // Add bogus null use to keep node alive - public <N extends Node> N keep() { return addUse(null); } + public <N extends Node> N keep() { addUse(null); return (N)this; } // Remove bogus null. - public <N extends Node> N unkeep() { - delUse(null); - return (N)this; - } + public <N extends Node> N unkeep() { delUse(null); return (N)this; } // Test "keep" status public boolean iskeep() { return _outputs.find(null) != -1; } public void unkill() { |