jasder
/
antlr
1
0
Fork 1
Code Issues Pull Requests Releases 1 Wiki Activity

tweak comment to be consistent with code. Fixes #2172

This commit is contained in:
parrt 2017-12-19 12:32:30 -08:00
parent ba47b092e9
commit 74779f334a
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
runtime/Java/src/org/antlr/v4/runtime/atn/PredictionContext.java
View File

@ -316,14 +316,14 @@ public abstract class PredictionContext {
}
else {
if ( a == EMPTY && b == EMPTY ) return EMPTY; // $ + $ = $
if ( a == EMPTY ) { // $ + x = [$,x]
if ( a == EMPTY ) { // $ + x = [x,$]
int[] payloads = {b.returnState, EMPTY_RETURN_STATE};
PredictionContext[] parents = {b.parent, null};
PredictionContext joined =
new ArrayPredictionContext(parents, payloads);
return joined;
}
if ( b == EMPTY ) { // x + $ = [$,x] ($ is always first if present)
if ( b == EMPTY ) { // x + $ = [x,$] ($ is always last if present)
int[] payloads = {a.returnState, EMPTY_RETURN_STATE};
PredictionContext[] parents = {a.parent, null};
PredictionContext joined =