public virtual Antlr4.Runtime.Atn.ATNConfig AppendContext(int context, PredictionContextCache contextCache)
{
PredictionContext appendedContext = Context.AppendContext(context, contextCache);
Antlr4.Runtime.Atn.ATNConfig result = Transform(State, appendedContext, false);
return(result);
}
public virtual bool Add(ATNConfig e, PredictionContextCache contextCache)
{
EnsureWritable();
System.Diagnostics.Debug.Assert(!outermostConfigSet || !e.ReachesIntoOuterContext);
System.Diagnostics.Debug.Assert(!e.IsHidden);
if (contextCache == null)
{
contextCache = PredictionContextCache.Uncached;
}
bool addKey;
long key = GetKey(e);
ATNConfig mergedConfig;
addKey = !mergedConfigs.TryGetValue(key, out mergedConfig);
if (mergedConfig != null && CanMerge(e, key, mergedConfig))
{
mergedConfig.OuterContextDepth = Math.Max(mergedConfig.OuterContextDepth, e.OuterContextDepth);
PredictionContext joined = PredictionContext.Join(mergedConfig.Context, e.Context, contextCache);
UpdatePropertiesForMergedConfig(e);
if (mergedConfig.Context == joined)
{
return(false);
}
mergedConfig.Context = joined;
return(true);
}
for (int i = 0; i < unmerged.Count; i++)
{
ATNConfig unmergedConfig = unmerged[i];
if (CanMerge(e, key, unmergedConfig))
{
unmergedConfig.OuterContextDepth = Math.Max(unmergedConfig.OuterContextDepth, e.OuterContextDepth);
PredictionContext joined = PredictionContext.Join(unmergedConfig.Context, e.Context, contextCache);
UpdatePropertiesForMergedConfig(e);
if (unmergedConfig.Context == joined)
{
return(false);
}
unmergedConfig.Context = joined;
if (addKey)
{
mergedConfigs[key] = unmergedConfig;
unmerged.RemoveAt(i);
}
return(true);
}
}
configs.Add(e);
if (addKey)
{
mergedConfigs[key] = e;
}
else
{
unmerged.Add(e);
}
UpdatePropertiesForAddedConfig(e);
return(true);
}
public LexerATNSimulator(Lexer recog, ATN atn,
DFA[] decisionToDFA,
PredictionContextCache sharedContextCache)
: base(atn, sharedContextCache)
{
this.decisionToDFA = decisionToDFA;
this.recog = recog;
}
public LexerATNSimulator(Lexer recog, ATN atn,
DFA[] decisionToDFA,
PredictionContextCache sharedContextCache)
: base(atn, sharedContextCache)
{
this.decisionToDFA = decisionToDFA;
this.recog = recog;
}
public virtual bool AddAll(IEnumerable <ATNConfig> c, PredictionContextCache contextCache)
{
EnsureWritable();
bool changed = false;
foreach (ATNConfig group in c)
{
changed |= Add(group, contextCache);
}
return(changed);
}
protected internal override SimulatorState ComputeReachSet(DFA dfa, SimulatorState previous, int t, PredictionContextCache contextCache)
{
SimulatorState reachState = base.ComputeReachSet(dfa, previous, t, contextCache);
if (reachState == null)
{
// no reach on current lookahead symbol. ERROR.
decisions[currentDecision].errors.Add(new ErrorInfo(currentDecision, previous, _input, _startIndex, _input.Index));
}
currentState = reachState;
return(reachState);
}
protected internal override Tuple <DFAState, ParserRuleContext> ComputeTargetState(DFA dfa, DFAState s, ParserRuleContext remainingGlobalContext, int t, bool useContext, PredictionContextCache contextCache)
{
Tuple <DFAState, ParserRuleContext> targetState = base.ComputeTargetState(dfa, s, remainingGlobalContext, t, useContext, contextCache);
if (useContext)
{
decisions[currentDecision].LL_ATNTransitions++;
}
else
{
decisions[currentDecision].SLL_ATNTransitions++;
}
return(targetState);
}
public virtual Antlr4.Runtime.Atn.ATNConfig AppendContext(PredictionContext context, PredictionContextCache contextCache)
{
PredictionContext appendedContext = Context.AppendContext(context, contextCache);
Antlr4.Runtime.Atn.ATNConfig result = Transform(State, appendedContext, false);
return result;
}
public override PredictionContext AppendContext(PredictionContext suffix, PredictionContextCache
contextCache)
{
return contextCache.GetChild(parent.AppendContext(suffix, contextCache), returnState
);
}
public override PredictionContext AppendContext(PredictionContext suffix, PredictionContextCache
contextCache)
{
return(suffix);
}
public LexerATNSimulator(ATN atn, DFA[] decisionToDFA,
PredictionContextCache sharedContextCache)
: this(null, atn, decisionToDFA, sharedContextCache)
{
}
protected internal override Tuple<DFAState, ParserRuleContext> ComputeTargetState(DFA dfa, DFAState s, ParserRuleContext remainingGlobalContext, int t, bool useContext, PredictionContextCache contextCache)
{
Tuple<DFAState, ParserRuleContext> targetState = base.ComputeTargetState(dfa, s, remainingGlobalContext, t, useContext, contextCache);
if (useContext)
{
decisions[currentDecision].LL_ATNTransitions++;
}
else
{
decisions[currentDecision].SLL_ATNTransitions++;
}
return targetState;
}
public abstract Antlr4.Runtime.Atn.PredictionContext AppendContext(Antlr4.Runtime.Atn.PredictionContext
suffix, PredictionContextCache contextCache);
/** Testing only! */
public ParserATNSimulator(ATN atn, DFA[] decisionToDFA,
PredictionContextCache sharedContextCache)
: this(null, atn, decisionToDFA, sharedContextCache)
{
}
public ParserATNSimulator(Parser parser, ATN atn,
DFA[] decisionToDFA,
PredictionContextCache sharedContextCache)
: base(atn, sharedContextCache)
{
this.parser = parser;
this.decisionToDFA = decisionToDFA;
// DOTGenerator dot = new DOTGenerator(null);
// Console.WriteLine(dot.getDOT(atn.rules.get(0), parser.getRuleNames()));
// Console.WriteLine(dot.getDOT(atn.rules.get(1), parser.getRuleNames()));
}
public override PredictionContext AppendContext(PredictionContext suffix, PredictionContextCache
contextCache)
{
return suffix;
}
public override PredictionContext AppendContext(int returnContext, PredictionContextCache
contextCache)
{
return contextCache.GetChild(this, returnContext);
}
public static PredictionContext GetCachedContext(PredictionContext context, PredictionContextCache contextCache, PredictionContext.IdentityHashMap visited)
{
if (context.IsEmpty)
{
return(context);
}
PredictionContext existing = visited.Get(context);
if (existing != null)
{
return(existing);
}
existing = contextCache.Get(context);
if (existing != null)
{
visited.Put(context, existing);
return(existing);
}
bool changed = false;
PredictionContext[] parents = new PredictionContext[context.Size];
for (int i = 0; i < parents.Length; i++)
{
PredictionContext parent = GetCachedContext(context.GetParent(i), contextCache, visited);
if (changed || parent != context.GetParent(i))
{
if (!changed)
{
parents = new PredictionContext[context.Size];
for (int j = 0; j < context.Size; j++)
{
parents[j] = context.GetParent(j);
}
changed = true;
}
parents[i] = parent;
}
}
if (!changed)
{
contextCache.Add(context);
visited.Put(context, context);
return(context);
}
PredictionContext updated;
if (parents.Length == 0)
{
updated = EMPTY;
}
else if (parents.Length == 1)
{
updated = SingletonPredictionContext.Create(parents[0], context.GetReturnState(0));
}
else
{
ArrayPredictionContext arrayPredictionContext = (ArrayPredictionContext)context;
updated = new ArrayPredictionContext(parents, arrayPredictionContext.returnStates);
}
contextCache.Add(updated);
visited.Put(updated, updated);
visited.Put(context, updated);
return(updated);
}
internal static Antlr4.Runtime.Atn.PredictionContext Join(Antlr4.Runtime.Atn.PredictionContext
context0, Antlr4.Runtime.Atn.PredictionContext context1, PredictionContextCache
contextCache)
{
if (context0 == context1)
{
return(context0);
}
if (context0.IsEmpty)
{
return(IsEmptyLocal(context0) ? context0 : AddEmptyContext(context1));
}
else
{
if (context1.IsEmpty)
{
return(IsEmptyLocal(context1) ? context1 : AddEmptyContext(context0));
}
}
int context0size = context0.Size;
int context1size = context1.Size;
if (context0size == 1 && context1size == 1 && context0.GetReturnState(0) == context1
.GetReturnState(0))
{
Antlr4.Runtime.Atn.PredictionContext merged = contextCache.Join(context0.GetParent
(0), context1.GetParent(0));
if (merged == context0.GetParent(0))
{
return(context0);
}
else
{
if (merged == context1.GetParent(0))
{
return(context1);
}
else
{
return(merged.GetChild(context0.GetReturnState(0)));
}
}
}
int count = 0;
Antlr4.Runtime.Atn.PredictionContext[] parentsList = new Antlr4.Runtime.Atn.PredictionContext
[context0size + context1size];
int[] returnStatesList = new int[parentsList.Length];
int leftIndex = 0;
int rightIndex = 0;
bool canReturnLeft = true;
bool canReturnRight = true;
while (leftIndex < context0size && rightIndex < context1size)
{
if (context0.GetReturnState(leftIndex) == context1.GetReturnState(rightIndex))
{
parentsList[count] = contextCache.Join(context0.GetParent(leftIndex), context1.GetParent
(rightIndex));
returnStatesList[count] = context0.GetReturnState(leftIndex);
canReturnLeft = canReturnLeft && parentsList[count] == context0.GetParent(leftIndex
);
canReturnRight = canReturnRight && parentsList[count] == context1.GetParent(rightIndex
);
leftIndex++;
rightIndex++;
}
else
{
if (context0.GetReturnState(leftIndex) < context1.GetReturnState(rightIndex))
{
parentsList[count] = context0.GetParent(leftIndex);
returnStatesList[count] = context0.GetReturnState(leftIndex);
canReturnRight = false;
leftIndex++;
}
else
{
System.Diagnostics.Debug.Assert(context1.GetReturnState(rightIndex) < context0.GetReturnState
(leftIndex));
parentsList[count] = context1.GetParent(rightIndex);
returnStatesList[count] = context1.GetReturnState(rightIndex);
canReturnLeft = false;
rightIndex++;
}
}
count++;
}
while (leftIndex < context0size)
{
parentsList[count] = context0.GetParent(leftIndex);
returnStatesList[count] = context0.GetReturnState(leftIndex);
leftIndex++;
canReturnRight = false;
count++;
}
while (rightIndex < context1size)
{
parentsList[count] = context1.GetParent(rightIndex);
returnStatesList[count] = context1.GetReturnState(rightIndex);
rightIndex++;
canReturnLeft = false;
count++;
}
if (canReturnLeft)
{
return(context0);
}
else
{
if (canReturnRight)
{
return(context1);
}
}
if (count < parentsList.Length)
{
parentsList = Arrays.CopyOf(parentsList, count);
returnStatesList = Arrays.CopyOf(returnStatesList, count);
}
if (parentsList.Length == 0)
{
// if one of them was EMPTY_LOCAL, it would be empty and handled at the beginning of the method
return(EmptyFull);
}
else
{
if (parentsList.Length == 1)
{
return(new SingletonPredictionContext(parentsList[0], returnStatesList[0]));
}
else
{
return(new ArrayPredictionContext(parentsList, returnStatesList));
}
}
}
public override PredictionContext AppendContext(PredictionContext suffix, PredictionContextCache contextCache)
{
return AppendContext(this, suffix, new PredictionContext.IdentityHashMap());
}
public virtual Antlr4.Runtime.Atn.PredictionContext AppendContext(int returnContext
, PredictionContextCache contextCache)
{
return(AppendContext(Antlr4.Runtime.Atn.PredictionContext.EmptyFull.GetChild(returnContext
), contextCache));
}
protected internal override SimulatorState ComputeReachSet(DFA dfa, SimulatorState previous, int t, PredictionContextCache contextCache)
{
SimulatorState reachState = base.ComputeReachSet(dfa, previous, t, contextCache);
if (reachState == null)
{
// no reach on current lookahead symbol. ERROR.
decisions[currentDecision].errors.Add(new ErrorInfo(currentDecision, previous, _input, _startIndex, _input.Index));
}
currentState = reachState;
return reachState;
}
public override PredictionContext AppendContext(PredictionContext suffix, PredictionContextCache contextCache)
{
return(contextCache.GetChild(parent.AppendContext(suffix, contextCache), returnState));
}
public override PredictionContext AppendContext(int returnContext, PredictionContextCache
contextCache)
{
return(contextCache.GetChild(this, returnContext));
}
public override PredictionContext AppendContext(PredictionContext suffix, PredictionContextCache contextCache)
{
return(AppendContext(this, suffix, new PredictionContext.IdentityHashMap()));
}
public void ClosureHelper(ATNConfigSet sourceConfigs, ATNConfigSet configs, bool collectPredicates, bool hasMoreContext, PredictionContextCache contextCache, bool treatEofAsEpsilon)
{
Closure(sourceConfigs, configs, collectPredicates, hasMoreContext, contextCache, treatEofAsEpsilon);
}
public ATNSimulator(ATN atn, PredictionContextCache sharedContextCache)
{
this.atn = atn;
this.sharedContextCache = sharedContextCache;
}
public ATNSimulator(ATN atn, PredictionContextCache sharedContextCache)
{
this.atn = atn;
this.sharedContextCache = sharedContextCache;
}