forked from antlr/antlr4
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
1 changed file
with
73 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package antlr | ||
|
|
||
| import ( | ||
| "testing" | ||
| ) | ||
|
|
||
| // Test for Issue # 3319 | ||
| // To run, "cd antlr4/runtime/Go/antlr/", then "go test". | ||
| // In the old runtime code, the test would crash because it would try | ||
| // to compare a *LexerActionExecutor with nil, causing a nil pointer dereference. | ||
| // It only happens if there were different states that had equal stateNumber mod 16, | ||
| // and you created that ATNConfig with a nil LexerActionExecutor. (That's why this | ||
| // code has a hardwired constant of 16. | ||
|
|
||
| func TestCompare(t *testing.T) { | ||
| var set = NewOrderedATNConfigSet() | ||
| var s0 = NewBaseATNState() | ||
| var s1 = NewBaseATNState() | ||
| var s2 = NewBaseATNState() | ||
| var s3 = NewBaseATNState() | ||
| var s16 = NewBaseATNState() | ||
| s16.SetStateNumber(16) | ||
| var s17 = NewBaseATNState() | ||
| s17.SetStateNumber(17) | ||
| var s18 = NewBaseATNState() | ||
| s18.SetStateNumber(18) | ||
| var s19 = NewBaseATNState() | ||
| s19.SetStateNumber(19) | ||
| var la0 = NewBaseLexerAction(1) | ||
| var la1 = NewBaseLexerAction(2) | ||
| var laa = make([]LexerAction, 2) | ||
| laa[0] = la0 | ||
| laa[1] = la1 | ||
| var ae = NewLexerActionExecutor(laa) | ||
| set.Add(NewLexerATNConfig5(s0, 0, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s0, 1, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s0, 2, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s1, 0, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s1, 1, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s1, 2, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s2, 0, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s2, 1, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s2, 2, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s3, 0, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s3, 1, BasePredictionContextEMPTY, ae), nil) | ||
| set.Add(NewLexerATNConfig5(s3, 2, BasePredictionContextEMPTY, ae), nil) | ||
|
|
||
| set.Add(NewLexerATNConfig5(s0, 0, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s0, 1, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s0, 2, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s1, 0, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s1, 1, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s1, 2, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s2, 0, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s2, 1, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s2, 2, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s3, 0, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s3, 1, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s3, 2, BasePredictionContextEMPTY, nil), nil) | ||
|
|
||
| set.Add(NewLexerATNConfig5(s16, 0, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s16, 1, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s16, 2, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s17, 0, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s17, 1, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s17, 2, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s18, 0, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s18, 1, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s18, 2, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s19, 0, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s19, 1, BasePredictionContextEMPTY, nil), nil) | ||
| set.Add(NewLexerATNConfig5(s19, 2, BasePredictionContextEMPTY, nil), nil) | ||
| } |