public LSystemStepper(
IEnumerable <BasicRule> rules,
SystemLevelRuleNativeData nativeRuleData,
CustomRuleSymbols customSymbols,
int expectedGlobalParameters = 0,
ISet <int>[] includedContextualCharactersByRuleIndex = null)
{
GlobalParameters = expectedGlobalParameters;
this.customSymbols = customSymbols;
includedCharacters = includedContextualCharactersByRuleIndex == null ? new HashSet <int> [0] : includedContextualCharactersByRuleIndex;
rulesByTargetSymbol = new Dictionary <int, IList <BasicRule> >();
foreach (var rule in rules)
{
var targetSymbols = rule.TargetSymbol;
if (!rulesByTargetSymbol.TryGetValue(targetSymbols, out var ruleList))
{
rulesByTargetSymbol[targetSymbols] = ruleList = new List <BasicRule>();
}
ruleList.Add(rule);
}
var maxMemoryRequirementsPerSymbol = new NativeHashMap <int, MaxMatchMemoryRequirements>(rulesByTargetSymbol.Keys.Count(), Allocator.Persistent);
foreach (var symbol in rulesByTargetSymbol.Keys.ToList())
{
rulesByTargetSymbol[symbol] = rulesByTargetSymbol[symbol]
.OrderByDescending(x =>
(x.ContextPrefix.IsValid ? x.ContextPrefix.graphNodeMemSpace.length : 0) +
(x.ContextSuffix.IsCreated ? x.ContextSuffix.graphNodeMemSpace.length : 0))
.ToList();
var maxParamCapturedByAnyRule = rulesByTargetSymbol[symbol]
.Select(x => x.CapturedLocalParameterCount)
.DefaultIfEmpty().Max();
// Greedy estimate for maximum possible parameter match.
// there need to be enough space for any rule's parameters to fit, since we don't know which ones will match.
var maximumPossibleParameterMatch = maxParamCapturedByAnyRule;
if (maximumPossibleParameterMatch > ushort.MaxValue)
{
throw new LSystemRuntimeException($"Rules with more than {ushort.MaxValue} captured local parameters over all conditional options");
}
maxMemoryRequirementsPerSymbol[symbol] = new MaxMatchMemoryRequirements
{
maxParameters = maximumPossibleParameterMatch
};
}
nativeRuleData.blittableRulesByTargetSymbol = NativeOrderedMultiDictionary <BasicRule.Blittable> .WithMapFunction(
rulesByTargetSymbol,
rule => rule.AsBlittable(),
Allocator.Persistent);
nativeRuleData.maxParameterMemoryRequirementsPerSymbol = maxMemoryRequirementsPerSymbol;
this.nativeRuleData = new DependencyTracker <SystemLevelRuleNativeData>(nativeRuleData);
}
public SystemLevelRuleNativeData(RuleDataRequirements memReqs)
{
prefixMatcherSymbols = new NativeArray <InputSymbol.Blittable>(memReqs.prefixNodes, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
suffixMatcherGraphNodeData = new NativeArray <SymbolMatcherGraphNode>(memReqs.suffixGraphNodes, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
suffixMatcherChildrenDataArray = new NativeArray <int>(memReqs.suffixChildren, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
ruleOutcomeMemorySpace = new NativeArray <RuleOutcome.Blittable>(memReqs.ruleOutcomes, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
replacementsSymbolMemorySpace = new NativeArray <ReplacementSymbolGenerator.Blittable>(memReqs.replacementSymbolsMemory, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
structExpressionMemorySpace = new NativeArray <StructExpression>(memReqs.structExpressionMemory, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
dynamicOperatorMemory = new NativeArray <OperatorDefinition>(memReqs.operatorMemory, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
blittableRulesByTargetSymbol = default;
maxParameterMemoryRequirementsPerSymbol = default;
immaturityMarkerSymbols = default;
}
public SystemLevelRuleNativeData(IEnumerable <BasicRule> rulesToWrite)
{
var allData = rulesToWrite.ToArray();
var memReqs = allData.Aggregate(new RuleDataRequirements(), (agg, curr) => agg + curr.RequiredMemorySpace);
prefixMatcherSymbols = new NativeArray <InputSymbol.Blittable>(memReqs.prefixNodes, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
suffixMatcherGraphNodeData = new NativeArray <SymbolMatcherGraphNode>(memReqs.suffixGraphNodes, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
suffixMatcherChildrenDataArray = new NativeArray <int>(memReqs.suffixChildren, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
ruleOutcomeMemorySpace = new NativeArray <RuleOutcome.Blittable>(memReqs.ruleOutcomes, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
replacementsSymbolMemorySpace = new NativeArray <ReplacementSymbolGenerator.Blittable>(memReqs.replacementSymbolsMemory, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
structExpressionMemorySpace = new NativeArray <StructExpression>(memReqs.structExpressionMemory, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
dynamicOperatorMemory = new NativeArray <OperatorDefinition>(memReqs.operatorMemory, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
blittableRulesByTargetSymbol = default;
maxParameterMemoryRequirementsPerSymbol = default;
immaturityMarkerSymbols = default;
}
