diff options
Diffstat (limited to 'chapter15/src/main/java')
| -rw-r--r-- | chapter15/src/main/java/com/seaofnodes/simple/node/Node.java | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/chapter15/src/main/java/com/seaofnodes/simple/node/Node.java b/chapter15/src/main/java/com/seaofnodes/simple/node/Node.java index 461f153d..7c22a50e 100644 --- a/chapter15/src/main/java/com/seaofnodes/simple/node/Node.java +++ b/chapter15/src/main/java/com/seaofnodes/simple/node/Node.java @@ -204,7 +204,7 @@ public abstract class Node implements OutNode { } // 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. @@ -252,12 +252,9 @@ public abstract class Node implements OutNode { // 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 Utils.find(_outputs,null) != -1; } |