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v4: Specify @Nullable 

[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9342]
This commit is contained in:
sharwell 2011-11-17 16:59:19 -08:00
parent 3526198105
commit 36a9af8b29
3 changed files with 7 additions and 3 deletions
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3
runtime/Java/src/org/antlr/v4/runtime/atn/LexerATNSimulator.java
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@ -29,6 +29,7 @@
package org.antlr.v4.runtime.atn; package org.antlr.v4.runtime.atn;
import com.sun.istack.internal.Nullable;
import org.antlr.v4.runtime.*; import org.antlr.v4.runtime.*;
import org.antlr.v4.runtime.dfa.DFA; import org.antlr.v4.runtime.dfa.DFA;
import org.antlr.v4.runtime.dfa.DFAState; import org.antlr.v4.runtime.dfa.DFAState;
@ -104,7 +105,7 @@ public class LexerATNSimulator extends ATNSimulator {
this(null, atn); this(null, atn);
} }
public LexerATNSimulator(Lexer recog, ATN atn) { public LexerATNSimulator(@Nullable Lexer recog, ATN atn) {
super(atn); super(atn);
dfa = new DFA[atn.modeToStartState.size()]; dfa = new DFA[atn.modeToStartState.size()];
for (int i=0; i<atn.modeToStartState.size(); i++) { for (int i=0; i<atn.modeToStartState.size(); i++) {

3
runtime/Java/src/org/antlr/v4/runtime/dfa/DFA.java
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@ -28,6 +28,7 @@
*/ */
package org.antlr.v4.runtime.dfa; package org.antlr.v4.runtime.dfa;
import com.sun.istack.internal.Nullable;
import org.antlr.v4.runtime.atn.ATNState; import org.antlr.v4.runtime.atn.ATNState;
import java.util.*; import java.util.*;
@ -52,7 +53,7 @@ public class DFA {
public String toString() { return toString(null); } public String toString() { return toString(null); }
public String toString(String[] tokenNames) { public String toString(@Nullable String[] tokenNames) {
if ( s0==null ) return ""; if ( s0==null ) return "";
DFASerializer serializer = new DFASerializer(this,tokenNames); DFASerializer serializer = new DFASerializer(this,tokenNames);
return serializer.toString(); return serializer.toString();

4
runtime/Java/src/org/antlr/v4/runtime/dfa/DFASerializer.java
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@ -29,12 +29,14 @@
package org.antlr.v4.runtime.dfa; package org.antlr.v4.runtime.dfa;
import com.sun.istack.internal.Nullable;
/** A DFA walker that knows how to dump them to serialized strings. */ /** A DFA walker that knows how to dump them to serialized strings. */
public class DFASerializer { public class DFASerializer {
String[] tokenNames; String[] tokenNames;
DFA dfa; DFA dfa;
public DFASerializer(DFA dfa, String[] tokenNames) { public DFASerializer(DFA dfa, @Nullable String[] tokenNames) {
this.dfa = dfa; this.dfa = dfa;
this.tokenNames = tokenNames; this.tokenNames = tokenNames;
} }