--- /dev/null
+package org.simantics.scl.compiler.internal.codegen.chr;\r
+\r
+import java.util.ArrayList;\r
+\r
+import org.cojen.classfile.TypeDesc;\r
+import org.objectweb.asm.Label;\r
+import org.objectweb.asm.Opcodes;\r
+import org.simantics.scl.compiler.elaboration.chr.CHRRuleset;\r
+import org.simantics.scl.compiler.elaboration.chr.plan.PrioritizedPlan;\r
+import org.simantics.scl.compiler.elaboration.chr.relations.CHRConstraint;\r
+import org.simantics.scl.compiler.elaboration.chr.relations.CHRConstraint.IndexInfo;\r
+import org.simantics.scl.compiler.internal.codegen.references.BoundVar;\r
+import org.simantics.scl.compiler.internal.codegen.types.JavaTypeTranslator;\r
+import org.simantics.scl.compiler.internal.codegen.utils.ClassBuilder;\r
+import org.simantics.scl.compiler.internal.codegen.utils.CodeBuilderUtils;\r
+import org.simantics.scl.compiler.internal.codegen.utils.Constants;\r
+import org.simantics.scl.compiler.internal.codegen.utils.LocalVariable;\r
+import org.simantics.scl.compiler.internal.codegen.utils.MethodBuilder;\r
+import org.simantics.scl.compiler.internal.codegen.utils.MethodBuilderBase;\r
+import org.simantics.scl.compiler.internal.codegen.utils.ModuleBuilder;\r
+\r
+import gnu.trove.list.array.TIntArrayList;\r
+import gnu.trove.set.hash.THashSet;\r
+\r
+public class CHRCodeGenerator {\r
+ \r
+ public static final TypeDesc FACT_ID_TYPE = TypeDesc.INT;\r
+ public static final String CHRHashIndex_name = "org/simantics/scl/runtime/chr/CHRHashIndex";\r
+ public static final TypeDesc CHRHashIndex = TypeDesc.forClass(CHRHashIndex_name);\r
+ public static final String FactActivationQueue_name = "org/simantics/scl/runtime/chr/FactActivationQueue";\r
+ public static final TypeDesc FactActivationQueue = TypeDesc.forClass(FactActivationQueue_name);\r
+ public static final String Fact_name = "org/simantics/scl/runtime/chr/Fact";\r
+ public static final TypeDesc Fact = TypeDesc.forClass(Fact_name);\r
+ public static final String QUEUE = "queue";\r
+ \r
+ private static class StoreInitialization {\r
+ final int access;\r
+ final String fieldName;\r
+ final TypeDesc fieldType;\r
+ final String className;\r
+ public StoreInitialization(int access, String fieldName, TypeDesc fieldType, String className) {\r
+ this.access = access;\r
+ this.fieldName = fieldName;\r
+ this.fieldType = fieldType;\r
+ this.className = className;\r
+ }\r
+ }\r
+ \r
+ public static void generateStore(ModuleBuilder moduleBuilder, CHRRuleset ruleset) {\r
+ ClassBuilder storeClassBuilder = new ClassBuilder(moduleBuilder, Opcodes.ACC_PUBLIC, ruleset.storeClassName, "java/lang/Object");\r
+ if(ruleset.parameters == null)\r
+ ruleset.parameters = new BoundVar[0];\r
+ ruleset.parameterTypeDescs = moduleBuilder.getJavaTypeTranslator().getTypeDescs(ruleset.parameters); \r
+ \r
+ ArrayList<StoreInitialization> hashIndexInitializations = new ArrayList<>();\r
+ for(CHRConstraint constraint : ruleset.constraints)\r
+ generateFact(storeClassBuilder, constraint, hashIndexInitializations);\r
+ \r
+ // Fields\r
+ for(int i=0;i<ruleset.parameterTypeDescs.length;++i)\r
+ storeClassBuilder.addField(Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL, "p" + i, ruleset.parameterTypeDescs[i]);\r
+ storeClassBuilder.addField(Opcodes.ACC_PUBLIC, "currentId", FACT_ID_TYPE);\r
+ for(StoreInitialization ini : hashIndexInitializations)\r
+ storeClassBuilder.addField(ini.access, ini.fieldName, ini.fieldType);\r
+ storeClassBuilder.addField(Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL, QUEUE, FactActivationQueue);\r
+ \r
+ // Constructors\r
+ \r
+ {\r
+ MethodBuilderBase mb = storeClassBuilder.addConstructor(Opcodes.ACC_PUBLIC, ruleset.parameterTypeDescs);\r
+ mb.loadThis();\r
+ mb.invokeConstructor(storeClassBuilder.getSuperClassName(), Constants.EMPTY_TYPEDESC_ARRAY);\r
+ for(int i=0;i<ruleset.parameterTypeDescs.length;++i) {\r
+ mb.loadThis();\r
+ mb.loadLocal(mb.getParameter(i));\r
+ mb.storeField(ruleset.storeClassName, "p" + i, ruleset.parameterTypeDescs[i]);\r
+ }\r
+ mb.loadThis();\r
+ mb.loadConstant(1);\r
+ mb.storeField(storeClassBuilder.getClassName(), "currentId", TypeDesc.INT);\r
+ for(StoreInitialization ini : hashIndexInitializations) {\r
+ mb.loadThis();\r
+ mb.newObject(ini.className);\r
+ mb.dup();\r
+ mb.invokeConstructor(ini.className, Constants.EMPTY_TYPEDESC_ARRAY);\r
+ mb.storeField(ruleset.storeClassName, ini.fieldName, ini.fieldType);\r
+ }\r
+ {\r
+ mb.loadThis();\r
+ mb.newObject(FactActivationQueue_name);\r
+ mb.dup();\r
+ mb.loadConstant(ruleset.priorityCount);\r
+ mb.invokeConstructor(FactActivationQueue_name, new TypeDesc[] {TypeDesc.INT});\r
+ mb.storeField(ruleset.storeClassName, QUEUE, FactActivationQueue);\r
+ }\r
+ mb.returnVoid();\r
+ mb.finish();\r
+ }\r
+ \r
+ // Activate\r
+ \r
+ {\r
+ MethodBuilderBase mb = storeClassBuilder.addMethodBase(Opcodes.ACC_PUBLIC, "activate", TypeDesc.VOID, new TypeDesc[] {TypeDesc.INT});\r
+ mb.loadThis();\r
+ mb.loadField(ruleset.storeClassName, QUEUE, FactActivationQueue);\r
+ mb.loadThis();\r
+ mb.loadLocal(mb.getParameter(0));\r
+ mb.invokeVirtual(FactActivationQueue_name, "activate", TypeDesc.VOID, new TypeDesc[] {TypeDesc.OBJECT, TypeDesc.INT});\r
+ mb.returnVoid();\r
+ mb.finish();\r
+ }\r
+ \r
+ moduleBuilder.addClass(storeClassBuilder);\r
+ }\r
+ \r
+ private static void generateFact(ClassBuilder storeClassBuilder, CHRConstraint constraint, ArrayList<StoreInitialization> hashIndexInitializations) {\r
+ CHRRuleset ruleset = constraint.parentRuleset;\r
+ boolean supportsRemoval = constraint.mayBeRemoved();\r
+ \r
+ ModuleBuilder moduleBuilder = storeClassBuilder.getModuleBuilder();\r
+ JavaTypeTranslator jtt = moduleBuilder.getJavaTypeTranslator();\r
+ TypeDesc storeTypeDesc = storeClassBuilder.getType();\r
+ TypeDesc[] storeTypeDescArray = new TypeDesc[] { storeTypeDesc };\r
+ \r
+ String factClassName = storeClassBuilder.getClassName() + "$" + constraint.name;\r
+ TypeDesc factTypeDesc = TypeDesc.forClass(factClassName);\r
+ ClassBuilder factClassBuilder = new ClassBuilder(moduleBuilder, Opcodes.ACC_PUBLIC, factClassName, "java/lang/Object", Fact_name);\r
+ \r
+ // Fields\r
+ \r
+ /* public int id;\r
+ public int c0; // key\r
+ public int c1;\r
+ public ExampleFact bfPrev;\r
+ public ExampleFact bfNext;\r
+ */\r
+ TypeDesc[] parameterTypeDescs = jtt.toTypeDescs(constraint.parameterTypes);\r
+ factClassBuilder.addField(Opcodes.ACC_PUBLIC, "id", FACT_ID_TYPE);\r
+ for(int i=0;i<constraint.parameterTypes.length;++i)\r
+ factClassBuilder.addField(Opcodes.ACC_PUBLIC, "c" + i, parameterTypeDescs[i]);\r
+ \r
+ for(IndexInfo indexInfo : constraint.getIndices()) {\r
+ if(supportsRemoval)\r
+ factClassBuilder.addField(Opcodes.ACC_PUBLIC, indexInfo.indexName + "Prev", factTypeDesc);\r
+ factClassBuilder.addField(Opcodes.ACC_PUBLIC, indexInfo.indexName + "Next", factTypeDesc);\r
+ \r
+ String hashIndexField = constraint.name + "$" + indexInfo.indexName;\r
+ if(indexInfo.indexMask == 0) {\r
+ // If there are now bound parameters, use just a direct reference to a fact\r
+ storeClassBuilder.addField(Opcodes.ACC_PUBLIC, hashIndexField, factTypeDesc);\r
+ }\r
+ else {\r
+ ClassBuilder hashClass = generateSpecializedHashIndex(storeClassBuilder, constraint, indexInfo, factTypeDesc, factClassName);\r
+ moduleBuilder.addClass(hashClass);\r
+ hashIndexInitializations.add(new StoreInitialization(Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL, hashIndexField, CHRHashIndex, hashClass.getClassName()));\r
+ }\r
+ }\r
+ \r
+ // Method: get\r
+ \r
+ hashIndexInitializations.add(new StoreInitialization(Opcodes.ACC_PRIVATE | Opcodes.ACC_FINAL, constraint.name + "$temp", factTypeDesc, factClassName));\r
+\r
+ \r
+ {\r
+ /*\r
+ public ExampleFact ExampleFact$bf(int c0) {\r
+ ExampleFact$temp.c0 = c0;\r
+ return (ExampleFact)ExampleFact_bfIndex.getEqual(ExampleFact$temp);\r
+ }\r
+ */\r
+ for(IndexInfo indexInfo : constraint.getIndices()) {\r
+ /*if(indexInfo.indexMask == 0) {\r
+ MethodBuilderBase mb = storeClassBuilder.addMethodBase(Opcodes.ACC_PUBLIC, constraint.name + "$" + indexInfo.indexName,\r
+ factTypeDesc, Constants.EMPTY_TYPEDESC_ARRAY);\r
+ mb.loadThis();\r
+ mb.loadField(storeClassBuilder.getClassName(), constraint.name + "$" + indexInfo.indexName, factTypeDesc);\r
+ mb.returnValue(factTypeDesc);\r
+ mb.finish();\r
+ }*/\r
+ if(indexInfo.indexMask != 0) {\r
+ ArrayList<TypeDesc> getParameterTypeDescs = new ArrayList<TypeDesc>(constraint.parameterTypes.length);\r
+ for(int i=0;i<constraint.parameterTypes.length;++i)\r
+ if(((indexInfo.indexMask>>i)&1)==1)\r
+ getParameterTypeDescs.add(parameterTypeDescs[i]);\r
+ MethodBuilderBase mb = storeClassBuilder.addMethodBase(Opcodes.ACC_PUBLIC, constraint.name + "$" + indexInfo.indexName, factTypeDesc,\r
+ getParameterTypeDescs.toArray(new TypeDesc[getParameterTypeDescs.size()]));\r
+ mb.loadThis();\r
+ mb.loadField(storeClassBuilder.getClassName(), constraint.name + "$temp", factTypeDesc);\r
+ LocalVariable tempFactVar = mb.createLocalVariable("temp", factTypeDesc);\r
+ mb.storeLocal(tempFactVar);\r
+ int parameterId=0;\r
+ for(int i=0;i<constraint.parameterTypes.length;++i)\r
+ if(((indexInfo.indexMask>>i)&1)==1) {\r
+ mb.loadLocal(tempFactVar);\r
+ mb.loadLocal(mb.getParameter(parameterId++));\r
+ mb.storeField(factClassName, "c"+i, parameterTypeDescs[i]);\r
+ }\r
+\r
+ mb.loadThis();\r
+ mb.loadField(storeClassBuilder.getClassName(), constraint.name + "$" + indexInfo.indexName, CHRHashIndex);\r
+ mb.loadLocal(tempFactVar);\r
+ mb.invokeVirtual(CHRHashIndex_name, supportsRemoval ? "getEqual" : "getEqualNoRemovals", TypeDesc.OBJECT, Constants.OBJECTS[1]);\r
+ mb.checkCast(factTypeDesc);\r
+ \r
+ mb.returnValue(factTypeDesc);\r
+ mb.finish();\r
+ }\r
+ } \r
+ }\r
+ \r
+ // Method: add\r
+ \r
+ {\r
+ MethodBuilderBase mb = factClassBuilder.addMethodBase(Opcodes.ACC_PUBLIC, "add", TypeDesc.VOID, storeTypeDescArray);\r
+ LocalVariable storeParameter = mb.getParameter(0);\r
+ for(IndexInfo indexInfo : constraint.getIndices()) {\r
+ String linkedListPrev = indexInfo.indexName + "Prev";\r
+ String linkedListNext = indexInfo.indexName + "Next";\r
+ String storeHashIndexName = constraint.name + "$" + indexInfo.indexName;\r
+ \r
+ // public void add(ExampleStore store) {\r
+ // bfNext = (ExampleFact)store.ExampleFact_bfIndex.addFreshAndReturnOld(this);\r
+ // if(bfNext != null)\r
+ // bfNext.bfPrev = this;\r
+ // }\r
+ \r
+ if(indexInfo.indexMask == 0) {\r
+ mb.loadThis();\r
+ mb.loadLocal(storeParameter);\r
+ mb.loadField(storeClassBuilder.getClassName(), storeHashIndexName, factTypeDesc);\r
+ if(supportsRemoval)\r
+ mb.dupX1();\r
+ mb.storeField(factClassName, linkedListNext, factTypeDesc);\r
+ if(supportsRemoval) {\r
+ Label cont = new Label();\r
+ mb.ifNullBranch(cont, true);\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListNext, factTypeDesc);\r
+ mb.loadThis();\r
+ mb.storeField(factClassName, linkedListPrev, factTypeDesc);\r
+ mb.setLocation(cont);\r
+ }\r
+ mb.loadLocal(storeParameter);\r
+ mb.loadThis();\r
+ mb.storeField(storeClassBuilder.getClassName(), storeHashIndexName, factTypeDesc);\r
+ }\r
+ else {\r
+ // bfNext = (ExampleFact)store.ExampleFact_bfIndex.addFreshAndReturnOld(this);\r
+ mb.loadThis();\r
+ mb.loadLocal(storeParameter);\r
+ mb.loadField(storeClassBuilder.getClassName(), storeHashIndexName, CHRHashIndex);\r
+ mb.loadThis();\r
+ mb.invokeVirtual(CHRHashIndex_name, supportsRemoval ? "addFreshAndReturnOld" : "addFreshAndReturnOld", TypeDesc.OBJECT, Constants.OBJECTS[1]);\r
+ mb.checkCast(factTypeDesc);\r
+ if(supportsRemoval)\r
+ mb.dupX1();\r
+ mb.storeField(factClassName, linkedListNext, factTypeDesc);\r
+ // leaves bfNext on the stack\r
+\r
+ //if(bfNext != null)\r
+ // bfNext.bfPrev = this;\r
+ if(supportsRemoval) {\r
+ Label cont = new Label();\r
+ mb.ifNullBranch(cont, true);\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListNext, factTypeDesc);\r
+ mb.loadThis();\r
+ mb.storeField(factClassName, linkedListPrev, factTypeDesc);\r
+ mb.setLocation(cont);\r
+ }\r
+ }\r
+ } \r
+ if(!constraint.isPassive()) {\r
+ mb.loadLocal(storeParameter);\r
+ mb.loadField(storeClassBuilder.getClassName(), QUEUE, FactActivationQueue);\r
+ mb.loadConstant(constraint.getMinimumPriority());\r
+ mb.loadThis();\r
+ mb.invokeVirtual(FactActivationQueue_name, "add", TypeDesc.VOID, new TypeDesc[] {TypeDesc.INT, Fact});\r
+ }\r
+ mb.returnVoid();\r
+ mb.finish();\r
+ }\r
+ \r
+ // Method: remove\r
+\r
+ if(supportsRemoval) {\r
+ // public void remove(ExampleStore store) {\r
+ // if(bfPrev == null) {\r
+ // if(bfNext == null)\r
+ // store.ExampleFact_bfIndex.removeKnownToExistKey(this);\r
+ // else {\r
+ // bfNext.bfPrev = null;\r
+ // store.ExampleFact_bfIndex.replaceKnownToExistKey(this, bfNext);\r
+ // }\r
+ // }\r
+ // else {\r
+ // bfPrev.bfNext = bfNext;\r
+ // if(bfNext != null)\r
+ // bfNext.bfPrev = bfPrev;\r
+ // }\r
+ // }\r
+ \r
+ MethodBuilderBase mb = factClassBuilder.addMethodBase(Opcodes.ACC_PUBLIC, "remove", TypeDesc.VOID, storeTypeDescArray);\r
+ LocalVariable storeParameter = mb.getParameter(0);\r
+ for(IndexInfo indexInfo : constraint.getIndices()) {\r
+ String linkedListPrev = indexInfo.indexName + "Prev";\r
+ String linkedListNext = indexInfo.indexName + "Next";\r
+ String storeHashIndexName = constraint.name + "$" + indexInfo.indexName;\r
+ \r
+ Label nextIndex = mb.createLabel();\r
+ \r
+ // if(bfPrev == null) {\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListPrev, factTypeDesc);\r
+ Label else1 = new Label();\r
+ mb.ifNullBranch(else1, false);\r
+ \r
+ // if(bfNext == null)\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListNext, factTypeDesc);\r
+ Label else2 = new Label();\r
+ mb.ifNullBranch(else2, false);\r
+ \r
+ // store.ExampleFact_bfIndex.removeKnownToExistKey(this);\r
+ if(indexInfo.indexMask == 0) {\r
+ mb.loadLocal(storeParameter);\r
+ mb.loadNull();\r
+ mb.storeField(storeClassBuilder.getClassName(), storeHashIndexName, factTypeDesc);\r
+ }\r
+ else {\r
+ mb.loadLocal(storeParameter);\r
+ mb.loadField(storeClassBuilder.getClassName(), storeHashIndexName, CHRHashIndex);\r
+ mb.loadThis();\r
+ mb.invokeVirtual(CHRHashIndex_name, "removeKnownToExistKey", TypeDesc.VOID, Constants.OBJECTS[1]);\r
+ }\r
+ mb.branch(nextIndex);\r
+ \r
+ // else {\r
+ mb.setLocation(else2);\r
+ // bfNext.bfPrev = null;\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListNext, factTypeDesc);\r
+ mb.loadNull();\r
+ mb.storeField(factClassName, linkedListPrev, factTypeDesc);\r
+ // store.ExampleFact_bfIndex.replaceKnownToExistKey(this, bfNext);\r
+ if(indexInfo.indexMask == 0) {\r
+ mb.loadLocal(storeParameter);\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListNext, factTypeDesc);\r
+ mb.storeField(storeClassBuilder.getClassName(), storeHashIndexName, factTypeDesc);\r
+ }\r
+ else {\r
+ mb.loadLocal(storeParameter);\r
+ mb.loadField(storeClassBuilder.getClassName(), storeHashIndexName, CHRHashIndex);\r
+ mb.loadThis();\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListNext, factTypeDesc);\r
+ mb.invokeVirtual(CHRHashIndex_name, "replaceKnownToExistKey", TypeDesc.VOID, Constants.OBJECTS[2]);\r
+ }\r
+ mb.branch(nextIndex);\r
+ // }\r
+ \r
+ // else {\r
+ mb.setLocation(else1);\r
+ // bfPrev.bfNext = bfNext;\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListPrev, factTypeDesc);\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListNext, factTypeDesc);\r
+ mb.storeField(factClassName, linkedListNext, factTypeDesc);\r
+ // if(bfNext != null)\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListNext, factTypeDesc);\r
+ Label else3 = new Label();\r
+ mb.ifNullBranch(else3, true);\r
+ // bfNext.bfPrev = bfPrev;\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListNext, factTypeDesc);\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, linkedListPrev, factTypeDesc);\r
+ mb.storeField(factClassName, linkedListPrev, factTypeDesc);\r
+ mb.setLocation(else3);\r
+ mb.branch(nextIndex);\r
+ // }\r
+ \r
+ mb.setLocation(nextIndex);\r
+ }\r
+ mb.loadThis();\r
+ mb.loadConstant(-1);\r
+ mb.storeField(factClassName, "id", FACT_ID_TYPE);\r
+ mb.returnVoid();\r
+ mb.finish();\r
+ }\r
+ \r
+ // Method: isAlive\r
+\r
+ {\r
+ // @Override\r
+ // public boolean isAlive() {\r
+ // return id >= 0;\r
+ // }\r
+ \r
+ MethodBuilderBase mb = factClassBuilder.addMethodBase(Opcodes.ACC_PUBLIC, "isAlive", TypeDesc.BOOLEAN, Constants.EMPTY_TYPEDESC_ARRAY);\r
+ if(supportsRemoval) {\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, "id", FACT_ID_TYPE);\r
+\r
+ Label thenBranch = mb.createLabel();\r
+ mb.ifZeroComparisonBranch(thenBranch, "<");\r
+ mb.loadConstant(true);\r
+ mb.returnValue(TypeDesc.BOOLEAN);\r
+\r
+ mb.setLocation(thenBranch);\r
+ mb.loadConstant(false);\r
+ mb.returnValue(TypeDesc.BOOLEAN);\r
+ }\r
+ else {\r
+ mb.loadConstant(true);\r
+ mb.returnValue(TypeDesc.BOOLEAN);\r
+ }\r
+ mb.finish();\r
+ }\r
+ \r
+ // activate parts\r
+ \r
+ THashSet<BoundVar> usedParameters = new THashSet<BoundVar>();\r
+ for(int i=0;i<constraint.plans.size();++i) {\r
+ PrioritizedPlan plan = constraint.plans.get(i);\r
+ MethodBuilder mb = factClassBuilder.addMethod(Opcodes.ACC_PUBLIC, "activate" + i, TypeDesc.BOOLEAN, new TypeDesc[] {storeTypeDesc});\r
+ LocalVariable storeVar = mb.getParameter(0);\r
+ LocalVariable factVar = new LocalVariable(0, factTypeDesc);\r
+ mb.setLocalVariable(ruleset.this_, storeVar);\r
+ mb.setLocalVariable(plan.implementation.getParameters()[0], factVar);\r
+ \r
+ // Set closure parameters\r
+ usedParameters.clear();\r
+ plan.implementation.forValRefs(valRef -> {\r
+ if(valRef.getBinding() instanceof BoundVar)\r
+ usedParameters.add((BoundVar)valRef.getBinding());\r
+ });\r
+ for(int j=0;j<ruleset.parameters.length;++j) {\r
+ BoundVar parameter = ruleset.parameters[j];\r
+ if(!usedParameters.contains(parameter))\r
+ continue;\r
+ mb.loadLocal(storeVar);\r
+ mb.loadField(storeClassBuilder.getClassName(), "p"+j, ruleset.parameterTypeDescs[j]);\r
+ mb.store(parameter);\r
+ }\r
+ \r
+ // Generate code\r
+ //System.out.println("=== activate" + i + " ==========================================================");\r
+ //System.out.println(plan.implementation);\r
+ plan.implementation.markGenerateOnFly();\r
+ plan.implementation.generateCodeWithAlreadyPreparedParameters(mb);\r
+ mb.finish();\r
+ }\r
+ \r
+ // Method: activate\r
+\r
+ {\r
+ // @Override\r
+ // public int activate(Object context, int priority) {\r
+ // return -1;\r
+ // }\r
+ \r
+ MethodBuilderBase mb = factClassBuilder.addMethodBase(Opcodes.ACC_PUBLIC, "activate", TypeDesc.INT, new TypeDesc[] {TypeDesc.OBJECT, TypeDesc.INT});\r
+ Label defaultLabel = mb.createLabel();\r
+ \r
+ if(!constraint.isPassive()) {\r
+ // Check if the fact is alive\r
+ mb.loadThis();\r
+ mb.loadField(factClassName, "id", TypeDesc.INT);\r
+ mb.ifZeroComparisonBranch(defaultLabel, "<");\r
+\r
+ mb.loadLocal(mb.getParameter(0));\r
+ mb.checkCast(storeTypeDesc);\r
+ LocalVariable storeVariable = new LocalVariable(1, storeTypeDesc);\r
+ mb.storeLocal(storeVariable);\r
+\r
+ TIntArrayList priorities = new TIntArrayList(constraint.plans.size());\r
+ ArrayList<Label> labels = new ArrayList<Label>();\r
+ int lastPriority = -1;\r
+ for(PrioritizedPlan plan : constraint.plans)\r
+ if(plan.priority != lastPriority) {\r
+ priorities.add(plan.priority);\r
+ labels.add(mb.createLabel());\r
+ lastPriority = plan.priority;\r
+ }\r
+\r
+ mb.loadLocal(mb.getParameter(1));\r
+ mb.switch_(priorities.toArray(), labels.toArray(new Label[labels.size()]), defaultLabel);\r
+ int labelId = -1;\r
+ for(int i=0;i<constraint.plans.size();++i) {\r
+ PrioritizedPlan plan = constraint.plans.get(i);\r
+ if(labelId == -1 || plan.priority != priorities.get(labelId)) {\r
+ if(labelId >= 0) {\r
+ mb.loadConstant(plan.priority);\r
+ mb.returnValue(TypeDesc.INT);\r
+ }\r
+ ++labelId;\r
+ mb.setLocation(labels.get(labelId));\r
+ }\r
+ mb.loadThis();\r
+ mb.loadLocal(storeVariable);\r
+ mb.invokeVirtual(factClassName, "activate" + i, TypeDesc.BOOLEAN, new TypeDesc[] {storeTypeDesc});\r
+ mb.ifZeroComparisonBranch(defaultLabel, "==");\r
+ }\r
+ mb.setLocation(defaultLabel);\r
+ }\r
+ mb.loadConstant(-1);\r
+ mb.returnValue(TypeDesc.INT);\r
+ mb.finish();\r
+ }\r
+ \r
+ // Constructors\r
+ \r
+ {\r
+ // public ExampleFact(int id, int c0, int c1) {\r
+ // this.id = id; \r
+ // this.c0 = c0;\r
+ // this.c1 = c1;\r
+ // }\r
+ \r
+ TypeDesc[] constructorParameters = new TypeDesc[parameterTypeDescs.length+1];\r
+ constructorParameters[0] = FACT_ID_TYPE;\r
+ for(int i=0;i<parameterTypeDescs.length;++i)\r
+ constructorParameters[i+1] = parameterTypeDescs[i];\r
+ MethodBuilderBase mb = factClassBuilder.addConstructor(Opcodes.ACC_PUBLIC, constructorParameters);\r
+ mb.loadThis();\r
+ mb.invokeConstructor(factClassBuilder.getSuperClassName(), Constants.EMPTY_TYPEDESC_ARRAY);\r
+ mb.loadThis();\r
+ mb.loadLocal(mb.getParameter(0));\r
+ mb.storeField(factClassName, "id", FACT_ID_TYPE);\r
+ for(int i=0;i<constraint.parameterTypes.length;++i) {\r
+ mb.loadThis();\r
+ mb.loadLocal(mb.getParameter(i+1));\r
+ mb.storeField(factClassName, "c" + i, parameterTypeDescs[i]);\r
+ }\r
+ mb.returnVoid();\r
+ mb.finish();\r
+ }\r
+ factClassBuilder.addDefaultConstructor();\r
+ \r
+ moduleBuilder.addClass(factClassBuilder);\r
+ }\r
+\r
+ private static ClassBuilder generateSpecializedHashIndex(ClassBuilder storeClassBuilder, CHRConstraint constraint, IndexInfo indexInfo, TypeDesc factClassTypeDesc, String factClassName) {\r
+ // new CHRHashIndex() {\r
+ // @Override\r
+ // protected boolean keyEquals(Object a, Object b) {\r
+ // return ((ExampleFact)a).c0 == ((ExampleFact)b).c0;\r
+ // }\r
+ // @Override\r
+ // protected int keyHashCode(Object key) {\r
+ // return ((ExampleFact)key).c0;\r
+ // }\r
+ // }\r
+\r
+ ModuleBuilder moduleBuilder = storeClassBuilder.getModuleBuilder();\r
+ JavaTypeTranslator jtt = moduleBuilder.getJavaTypeTranslator();\r
+ \r
+ String hashIndexClassName = factClassName + "$" + indexInfo.indexName; \r
+ ClassBuilder hashIndexClassBuilder = new ClassBuilder(moduleBuilder, Opcodes.ACC_PUBLIC, hashIndexClassName, "org/simantics/scl/runtime/chr/CHRHashIndex");\r
+ \r
+ // Method: keyEquals\r
+\r
+ {\r
+\r
+ // @Override\r
+ // protected boolean keyEquals(Object a, Object b) {\r
+ // return ((ExampleFact)a).c0 == ((ExampleFact)b).c0;\r
+ // }\r
+ \r
+ MethodBuilderBase mb = hashIndexClassBuilder.addMethodBase(Opcodes.ACC_PROTECTED, "keyEquals", TypeDesc.BOOLEAN, Constants.OBJECTS[2]);\r
+ mb.loadLocal(mb.getParameter(0));\r
+ mb.checkCast(factClassTypeDesc);\r
+ LocalVariable aVar = mb.createLocalVariable("a", factClassTypeDesc);\r
+ mb.storeLocal(aVar);\r
+ \r
+ mb.loadLocal(mb.getParameter(1));\r
+ mb.checkCast(factClassTypeDesc);\r
+ LocalVariable bVar = mb.createLocalVariable("b", factClassTypeDesc);\r
+ mb.storeLocal(bVar);\r
+\r
+ Label failure = mb.createLabel();\r
+ \r
+ int curMask = indexInfo.indexMask;\r
+ for(int i=0;i<constraint.parameterTypes.length;++i,curMask>>=1)\r
+ if((curMask&1) == 1) {\r
+ TypeDesc fieldTypeDesc = jtt.toTypeDesc(constraint.parameterTypes[i]);\r
+ if(fieldTypeDesc.equals(TypeDesc.VOID))\r
+ continue;\r
+ mb.loadLocal(aVar);\r
+ mb.loadField(factClassName, "c"+i, fieldTypeDesc);\r
+ \r
+ mb.loadLocal(bVar);\r
+ mb.loadField(factClassName, "c"+i, fieldTypeDesc);\r
+\r
+ CodeBuilderUtils.equals(mb, fieldTypeDesc, failure);\r
+ }\r
+ mb.loadConstant(true);\r
+ mb.returnValue(TypeDesc.BOOLEAN);\r
+ \r
+ mb.setLocation(failure);\r
+ mb.loadConstant(false);\r
+ mb.returnValue(TypeDesc.BOOLEAN);\r
+ mb.finish();\r
+ }\r
+ \r
+ // Method: keyHashCode\r
+\r
+ {\r
+ // @Override\r
+ // protected int keyHashCode(Object key) {\r
+ // return (0x811C9DC5^((ExampleFact)key).c0)*16777619;\r
+ // }\r
+ \r
+ MethodBuilderBase mb = hashIndexClassBuilder.addMethodBase(Opcodes.ACC_PROTECTED, "keyHashCode", TypeDesc.INT, Constants.OBJECTS[1]);\r
+ mb.loadLocal(mb.getParameter(0));\r
+ mb.checkCast(factClassTypeDesc);\r
+ LocalVariable factVar = mb.createLocalVariable("fact", factClassTypeDesc);\r
+ mb.storeLocal(factVar);\r
+\r
+ mb.loadConstant(0x811C9DC5);\r
+\r
+ int curMask = indexInfo.indexMask;\r
+ for(int i=0;i<constraint.parameterTypes.length;++i,curMask>>=1)\r
+ if((curMask&1) == 1) {\r
+ TypeDesc fieldTypeDesc = jtt.toTypeDesc(constraint.parameterTypes[i]);\r
+ if(fieldTypeDesc.equals(TypeDesc.VOID))\r
+ continue;\r
+ mb.loadLocal(factVar);\r
+ mb.loadField(factClassName, "c"+i, fieldTypeDesc);\r
+ CodeBuilderUtils.hashCode(mb, fieldTypeDesc);\r
+ mb.math(Opcodes.IXOR);\r
+ mb.loadConstant(16777619);\r
+ mb.math(Opcodes.IMUL);\r
+\r
+ }\r
+ mb.returnValue(TypeDesc.INT);\r
+ mb.finish();\r
+ }\r
+\r
+ hashIndexClassBuilder.addDefaultConstructor();\r
+ \r
+ return hashIndexClassBuilder;\r
+ }\r
+}\r
Code Review / simantics / platform.git / blobdiff