+++ /dev/null
-package org.simantics.scl.compiler.compilation;
-
-import static org.simantics.scl.compiler.elaboration.expressions.Expressions.apply;
-import static org.simantics.scl.compiler.elaboration.expressions.Expressions.applyTypes;
-import static org.simantics.scl.compiler.elaboration.expressions.Expressions.lambda;
-import static org.simantics.scl.compiler.elaboration.expressions.Expressions.loc;
-import static org.simantics.scl.compiler.elaboration.expressions.Expressions.vars;
-import gnu.trove.map.hash.THashMap;
-import gnu.trove.map.hash.TObjectIntHashMap;
-import gnu.trove.set.hash.THashSet;
-import gnu.trove.set.hash.TIntHashSet;
-
-import java.util.ArrayList;
-
-import org.simantics.scl.compiler.elaboration.contexts.TypingContext;
-import org.simantics.scl.compiler.elaboration.expressions.EPlaceholder;
-import org.simantics.scl.compiler.elaboration.expressions.EVariable;
-import org.simantics.scl.compiler.elaboration.expressions.Expression;
-import org.simantics.scl.compiler.elaboration.expressions.Variable;
-import org.simantics.scl.compiler.elaboration.modules.SCLValue;
-import org.simantics.scl.compiler.elaboration.rules.MappingRelation;
-import org.simantics.scl.compiler.elaboration.rules.TransformationRule;
-import org.simantics.scl.compiler.environment.Environment;
-import org.simantics.scl.compiler.errors.ErrorLog;
-import org.simantics.scl.compiler.errors.Locations;
-import org.simantics.scl.compiler.internal.elaboration.constraints.Constraint;
-import org.simantics.scl.compiler.internal.elaboration.constraints.ConstraintEnvironment;
-import org.simantics.scl.compiler.internal.elaboration.constraints.ConstraintSolver;
-import org.simantics.scl.compiler.internal.elaboration.constraints.ExpressionAugmentation;
-import org.simantics.scl.compiler.internal.elaboration.constraints.ReducedConstraints;
-import org.simantics.scl.compiler.internal.elaboration.utils.StronglyConnectedComponents;
-import org.simantics.scl.compiler.module.ConcreteModule;
-import org.simantics.scl.compiler.types.TPred;
-import org.simantics.scl.compiler.types.TVar;
-import org.simantics.scl.compiler.types.Type;
-import org.simantics.scl.compiler.types.Types;
-import org.simantics.scl.compiler.types.kinds.Kinds;
-import org.simantics.scl.compiler.types.util.Polarity;
-
-public class TypeCheckingOld {
- public static final boolean PRINT_VALUES = false;
-
- ErrorLog errorLog;
- Environment environment;
- ConcreteModule module;
-
- ConstraintEnvironment ce;
- ArrayList<SCLValue[]> valuesWithoutTypeAnnotation = new ArrayList<SCLValue[]>();
- ArrayList<SCLValue> valuesWithTypeAnnotation = new ArrayList<SCLValue>();
-
- public TypeCheckingOld(ErrorLog errorLog, Environment environment,
- ConcreteModule module) {
- this.errorLog = errorLog;
- this.environment = environment;
- this.module = module;
- }
-
- public void typeCheck() {
- ce = new ConstraintEnvironment(environment);
- groupValueDefinitionsByDependency();
- typeCheckValuesWithoutTypeAnnotations();
- typeCheckValuesWithTypeAnnotations();
- typeCheckRules();
- }
-
- private void groupValueDefinitionsByDependency() {
- // Collect all untyped names
- final ArrayList<SCLValue> values = new ArrayList<SCLValue>();
- for(SCLValue value : module.getValues()) {
- if(value.getExpression() != null) {
- if(value.getType() == null)
- values.add(value);
- else
- valuesWithTypeAnnotation.add(value);
- }
- }
-
- // Create inverse
- final TObjectIntHashMap<Object> allRefs =
- new TObjectIntHashMap<Object>(values.size()*2, 0.5f, -1);
- for(int i=0;i<values.size();++i)
- allRefs.put(values.get(i), i);
-
- // Create groups
- new StronglyConnectedComponents(values.size()) {
-
- TIntHashSet set = new TIntHashSet();
-
- @Override
- protected void reportComponent(int[] component) {
- SCLValue[] valueComponent = new SCLValue[component.length];
- for(int i=0;i<component.length;++i)
- valueComponent[i] = values.get(component[i]);
- valuesWithoutTypeAnnotation.add(valueComponent);
- }
-
- @Override
- protected int[] findDependencies(int u) {
- Expression expression = values.get(u).getExpression();
- expression.collectRefs(allRefs, set);
-
- int[] result = set.toArray();
- set.clear();
-
- return result;
- }
-
- }.findComponents();
- }
-
- private void typeCheckValuesWithoutTypeAnnotations() {
- for(SCLValue[] group : valuesWithoutTypeAnnotation) {
- if(PRINT_VALUES) {
- System.out.println("---------------------------------------------");
- System.out.print("---");
- for(SCLValue value : group)
- System.out.print(" " + value.getName());
- System.out.println();
- }
-
- for(int i=0;i<group.length;++i)
- group[i].setType(Types.metaVar(Kinds.STAR));
-
- TypingContext context = new TypingContext(errorLog, environment);
- context.recursiveValues = new THashSet<SCLValue>();
- for(SCLValue value : group)
- context.recursiveValues.add(value);
-
- @SuppressWarnings("unchecked")
- ArrayList<EVariable>[] constraintDemands = new ArrayList[group.length];
-
- @SuppressWarnings("unchecked")
- ArrayList<EPlaceholder>[] recursiveReferences = new ArrayList[group.length];
- for(int i=0;i<group.length;++i) {
- context.recursiveReferences = new ArrayList<EPlaceholder>();
-
- SCLValue value = group[i];
- Expression expression = value.getExpression();
- expression = expression.checkType(context, value.getType());
- value.setExpression(expression);
-
- ArrayList<EVariable> constraintDemand = context.getConstraintDemand();
- if(!constraintDemand.isEmpty()) {
- constraintDemands[i] = constraintDemand;
- context.resetConstraintDemand();
- }
-
- recursiveReferences[i] = context.recursiveReferences;
- }
-
- for(Type type : Types.getTypes(group))
- type.addPolarity(Polarity.POSITIVE);
- context.solveSubsumptions(group[0].getExpression().getLocation());
- ArrayList<Constraint> allUnsolvedConstraints = new ArrayList<Constraint>();
-
- @SuppressWarnings("unchecked")
- ArrayList<Variable>[] freeEvidence = new ArrayList[group.length];
- for(int i=0;i<group.length;++i) {
- if(constraintDemands[i] != null) {
- SCLValue value = group[i];
- Expression expression = value.getExpression();
-
- ReducedConstraints red = ConstraintSolver.solve(
- ce, new ArrayList<TPred>(0), constraintDemands[i],
- true /*!Types.isFunction(expression.getType())*/);
-
- expression = ExpressionAugmentation.augmentSolved(
- red.solvedConstraints,
- expression);
- value.setExpression(expression);
- value.setType(expression.getType());
-
- for(Constraint c : red.unsolvedConstraints)
- if(c.constraint.isGround()) {
- errorLog.log(c.getDemandLocation(), "There is no instance for <"+c.constraint+">.");
- }
-
- ArrayList<Variable> fe = new ArrayList<Variable>(red.unsolvedConstraints.size());
- for(Constraint c : red.unsolvedConstraints) {
- allUnsolvedConstraints.add(c);
- fe.add(c.evidence);
- }
- freeEvidence[i] = fe;
- }
- else {
- group[i].setExpression(group[i].getExpression().decomposeMatching());
- freeEvidence[i] = new ArrayList<Variable>(0);
- }
- }
-
- THashSet<TVar> varSet = new THashSet<TVar>();
- for(int i=0;i<group.length;++i) {
- SCLValue value = group[i];
- Type type = value.getType();
- type = type.convertMetaVarsToVars();
- value.setType(type);
- varSet.addAll(Types.freeVars(type));
- }
-
- TVar[] vars = varSet.toArray(new TVar[varSet.size()]);
-
- // Collect all constraints needed in the group
- THashSet<TPred> constraintSet = new THashSet<TPred>();
- for(int i=0;i<group.length;++i) {
- for(Variable evidence : freeEvidence[i]) {
- constraintSet.add((TPred)evidence.getType());
- }
- }
- TPred[] constraints = constraintSet.toArray(new TPred[constraintSet.size()]);
- for(TPred constraint : constraints)
- if(constraint.containsMetaVars()) {
- for(Constraint c : allUnsolvedConstraints) {
- if(Types.equals(c.constraint, constraint)) {
- errorLog.log(c.getDemandLocation(),
- "Constrain " + constraint +
- " contains free variables not mentioned in the type of the value.");
- break;
- }
- }
- }
-
-
- // TODO copy to TypeChecking2 from this onwards
- for(int i=0;i<group.length;++i) {
- // Create evidence array of every value in the group that has the variables
- // in the same array as in the shared array
- ArrayList<Variable> fe = freeEvidence[i];
- THashMap<TPred, Variable> indexedEvidence = new THashMap<TPred, Variable>(fe.size());
- for(Variable v : fe)
- indexedEvidence.put((TPred)v.getType(), v);
- fe.clear();
- for(TPred c : constraints) {
- Variable var = indexedEvidence.get(c);
- if(var == null) {
- // These are variables that are not directly needed in
- // this definition but in the definitions that are
- // recursively called
- var = new Variable("evX");
- var.setType(c);
- fe.add(var);
- }
- fe.add(var);
- }
-
- // Add evidence parameters to the functions
- SCLValue value = group[i];
- value.setExpression(lambda(Types.NO_EFFECTS, fe, value.getExpression())
- .closure(vars));
- value.setType(Types.forAll(vars,
- Types.constrained(constraints, value.getType())));
-
- // Add evidence parameters to recursive calls
- for(EPlaceholder ref : recursiveReferences[i]) {
- ref.expression = loc(ref.expression.location, apply(
- Types.NO_EFFECTS,
- applyTypes(ref.expression, vars),
- vars(fe)));
- }
- }
- }
- }
-
- private void typeCheckValuesWithTypeAnnotations() {
- ArrayList<TPred> givenConstraints = new ArrayList<TPred>();
- for(SCLValue value : valuesWithTypeAnnotation) {
- Type type = value.getType();
- if(type != null) {
- if(PRINT_VALUES) {
- System.out.println("---------------------------------------------");
- System.out.println("--- " + value.getName() + " :: " + type);
- }
- Expression expression = value.getExpression();
- ArrayList<TVar> vars = new ArrayList<TVar>();
- type = Types.removeForAll(type, vars);
- type = Types.removePred(type, givenConstraints);
-
- /*System.out.println("---------------------------------------------");
- TypeUnparsingContext tuc = new TypeUnparsingContext();
- System.out.println("--- " + value.getName() + " :: " + type.toString(tuc));
- for(TPred t : givenConstraints)
- System.out.println(">>> " + t.toString(tuc));
- */
- TypingContext context = new TypingContext(errorLog, environment);
- //System.out.println(expression);
- expression = expression.checkType(context, type);
- //System.out.println(expression);
- expression.getType().addPolarity(Polarity.POSITIVE);
- context.solveSubsumptions(expression.getLocation());
- ArrayList<EVariable> demands = context.getConstraintDemand();
- if(!demands.isEmpty() || !givenConstraints.isEmpty()) {
- ReducedConstraints red =
- ConstraintSolver.solve(ce, givenConstraints, demands, true);
- givenConstraints.clear();
- for(Constraint c : red.unsolvedConstraints) {
- errorLog.log(c.getDemandLocation(),
- "Constraint <"+c.constraint+"> is not given and cannot be derived.");
- }
- if(errorLog.isEmpty()) { // To prevent exceptions
- expression = ExpressionAugmentation.augmentSolved(
- red.solvedConstraints,
- expression);
- expression = ExpressionAugmentation.augmentUnsolved(
- red.givenConstraints,
- expression);
- }
- }
- else {
- if(errorLog.isEmpty()) // To prevent exceptions
- expression = expression.decomposeMatching();
- }
- expression = expression.closure(vars.toArray(new TVar[vars.size()]));
- value.setExpression(expression);
- }
- }
- }
-
- public void typeCheckRules() {
- TypingContext context = new TypingContext(errorLog, environment);
- for(TransformationRule rule : module.getRules()) {
- context.pushEffectUpperBound(rule.location, Types.metaVar(Kinds.EFFECT));
- rule.checkType(context);
- rule.setEffect(Types.canonical(context.popEffectUpperBound()));
- }
- context.solveSubsumptions(Locations.NO_LOCATION);
-
- ArrayList<EVariable> demands = context.getConstraintDemand();
- if(!demands.isEmpty()) {
- ReducedConstraints red =
- ConstraintSolver.solve(ce, new ArrayList<TPred>(), demands, true);
- for(Constraint c : red.unsolvedConstraints) {
- errorLog.log(c.getDemandLocation(),
- "Constraint <"+c.constraint+"> is not given and cannot be derived.");
- }
- }
-
- for(MappingRelation mappingRelation : module.getMappingRelations())
- for(Type parameterType : mappingRelation.parameterTypes)
- if(!parameterType.isGround()) {
- errorLog.log(mappingRelation.location, "Parameter types of the mapping relation are not completely determined.");
- break;
- }
-
- /*for(Rule rule : module.getRules()) {
- System.out.println(rule.name);
- for(Variable variable : rule.variables)
- System.out.println(" " + variable.getName() + " :: " + variable.getType());
- }*/
- }
-}
Code Review / simantics / platform.git / blobdiff