Examples with TypeParameter com.redhat.ceylon.model.typechecker.model.TypeParameter used on opensource projects

Example 51 with TypeParameter

use of com.redhat.ceylon.model.typechecker.model.TypeParameter in project ceylon-compiler by ceylon.

the class ClassTransformer method concreteMembersFromSuperinterfaces.

/**
     * Generates companion fields ($Foo$impl) and methods
     */
private void concreteMembersFromSuperinterfaces(final Class model, ClassDefinitionBuilder classBuilder, Type satisfiedType, Set<Interface> satisfiedInterfaces) {
    satisfiedType = satisfiedType.resolveAliases();
    Interface iface = (Interface) satisfiedType.getDeclaration();
    if (satisfiedInterfaces.contains(iface) || iface.getType().isExactly(typeFact().getIdentifiableDeclaration().getType())) {
        return;
    }
    // then don't instantiate it...
    if (hasImpl(iface)) {
        // ... otherwise for each satisfied interface, 
        // instantiate an instance of the 
        // companion class in the constructor and assign it to a
        // $Interface$impl field
        transformInstantiateCompanions(classBuilder, model, iface, satisfiedType);
    }
    if (!Decl.isCeylon(iface)) {
        // let's not try to implement CMI for Java interfaces
        return;
    }
    // For each super interface
    for (Declaration member : iface.getMembers()) {
        if (member instanceof Class) {
            Class klass = (Class) member;
            final Type typedMember = satisfiedType.getTypeMember(klass, Collections.<Type>emptyList());
            if (Strategy.generateInstantiator(member) && !klass.hasConstructors() && !model.isFormal() && needsCompanionDelegate(model, typedMember) && model.getDirectMember(member.getName(), null, false) == null) {
                // instantiator method implementation
                generateInstantiatorDelegate(classBuilder, satisfiedType, iface, klass, null, model.getType(), !member.isFormal());
            }
            if (klass.hasConstructors()) {
                for (Declaration m : klass.getMembers()) {
                    if (m instanceof Constructor && Strategy.generateInstantiator(m)) {
                        Constructor ctor = (Constructor) m;
                        generateInstantiatorDelegate(classBuilder, satisfiedType, iface, klass, ctor, model.getType(), true);
                    }
                }
            }
        }
        // type aliases are on the $impl class
        if (member instanceof TypeAlias)
            continue;
        if (Strategy.onlyOnCompanion(member)) {
            // (they're just private methods on the $impl)
            continue;
        }
        if (member instanceof Function) {
            Function method = (Function) member;
            final TypedReference typedMember = satisfiedType.getTypedMember(method, Collections.<Type>emptyList());
            Declaration sub = (Declaration) model.getMember(method.getName(), getSignatureIfRequired(typedMember), false, true);
            if (sub instanceof Function) /* && !sub.isAbstraction()*/
            {
                Function subMethod = (Function) sub;
                if (subMethod.getParameterLists().isEmpty()) {
                    continue;
                }
                java.util.List<java.util.List<Type>> producedTypeParameterBounds = producedTypeParameterBounds(typedMember, subMethod);
                //                    final TypedReference refinedTypedMember = model.getType().getTypedMember(subMethod, Collections.<Type>emptyList());
                final java.util.List<TypeParameter> typeParameters = subMethod.getTypeParameters();
                final java.util.List<Parameter> parameters = subMethod.getFirstParameterList().getParameters();
                boolean hasOverloads = false;
                if (!satisfiedInterfaces.contains((Interface) method.getContainer())) {
                    for (Parameter param : parameters) {
                        if (Strategy.hasDefaultParameterValueMethod(param) && CodegenUtil.getTopmostRefinedDeclaration(param.getModel()).getContainer().equals(member)) {
                            final TypedReference typedParameter = typedMember.getTypedParameter(param);
                            // If that method has a defaulted parameter, 
                            // we need to generate a default value method
                            // which also delegates to the $impl
                            final MethodDefinitionBuilder defaultValueDelegate = makeDelegateToCompanion(iface, typedParameter, model.getType(), PUBLIC | FINAL, typeParameters, producedTypeParameterBounds, typedParameter.getFullType(), Naming.getDefaultedParamMethodName(method, param), parameters.subList(0, parameters.indexOf(param)), param.getModel().getTypeErased(), null, DelegateType.FOR_DEFAULT_VALUE);
                            classBuilder.method(defaultValueDelegate);
                        }
                        if (Strategy.hasDefaultParameterOverload(param)) {
                            if ((method.isDefault() || method.isShared() && !method.isFormal()) && Decl.equal(method, subMethod)) {
                                MethodDefinitionBuilder overload = new DefaultedArgumentMethodTyped(new DaoThis((Tree.AnyMethod) null, null), MethodDefinitionBuilder.method(this, subMethod), typedMember, true).makeOverload(subMethod.getFirstParameterList(), param, typeParameters);
                                classBuilder.method(overload);
                            }
                            hasOverloads = true;
                        }
                    }
                }
                // delegating to the $impl instance
                if (needsCompanionDelegate(model, typedMember)) {
                    final MethodDefinitionBuilder concreteMemberDelegate = makeDelegateToCompanion(iface, typedMember, model.getType(), PUBLIC | (method.isDefault() ? 0 : FINAL), typeParameters, producedTypeParameterBounds, typedMember.getType(), naming.selector(method), method.getFirstParameterList().getParameters(), ((Function) member).getTypeErased(), null, DelegateType.OTHER);
                    classBuilder.method(concreteMemberDelegate);
                }
                if (hasOverloads && (method.isDefault() || method.isShared() && !method.isFormal()) && Decl.equal(method, subMethod)) {
                    final MethodDefinitionBuilder canonicalMethod = makeDelegateToCompanion(iface, typedMember, model.getType(), PRIVATE, subMethod.getTypeParameters(), producedTypeParameterBounds, typedMember.getType(), Naming.selector(method, Naming.NA_CANONICAL_METHOD), method.getFirstParameterList().getParameters(), ((Function) member).getTypeErased(), naming.selector(method), DelegateType.OTHER);
                    classBuilder.method(canonicalMethod);
                }
            }
        } else if (member instanceof Value || member instanceof Setter) {
            TypedDeclaration attr = (TypedDeclaration) member;
            final TypedReference typedMember = satisfiedType.getTypedMember(attr, null);
            if (needsCompanionDelegate(model, typedMember)) {
                Setter setter = (member instanceof Setter) ? (Setter) member : null;
                if (member instanceof Value) {
                    if (member instanceof JavaBeanValue) {
                        setter = ((Value) member).getSetter();
                    }
                    final MethodDefinitionBuilder getterDelegate = makeDelegateToCompanion(iface, typedMember, model.getType(), PUBLIC | (attr.isDefault() ? 0 : FINAL), Collections.<TypeParameter>emptyList(), Collections.<java.util.List<Type>>emptyList(), typedMember.getType(), Naming.getGetterName(attr), Collections.<Parameter>emptyList(), attr.getTypeErased(), null, DelegateType.OTHER);
                    classBuilder.method(getterDelegate);
                }
                if (setter != null) {
                    final MethodDefinitionBuilder setterDelegate = makeDelegateToCompanion(iface, satisfiedType.getTypedMember(setter, null), model.getType(), PUBLIC | (setter.getGetter().isDefault() ? 0 : FINAL), Collections.<TypeParameter>emptyList(), Collections.<java.util.List<Type>>emptyList(), typeFact().getAnythingType(), Naming.getSetterName(attr), Collections.<Parameter>singletonList(setter.getParameter()), setter.getTypeErased(), null, DelegateType.OTHER);
                    classBuilder.method(setterDelegate);
                }
                if (Decl.isValue(member) && ((Value) attr).isVariable()) {
                    // $impl to delegate to
                    throw new BugException("assertion failed: " + member.getQualifiedNameString() + " was unexpectedly a variable value");
                }
            }
        } else {
            Reference typedMember = member instanceof TypeDeclaration ? satisfiedType.getTypeMember((TypeDeclaration) member, Collections.<Type>emptyList()) : satisfiedType.getTypedMember((TypedDeclaration) member, Collections.<Type>emptyList());
            if (needsCompanionDelegate(model, typedMember)) {
                throw new BugException("unhandled concrete interface member " + member.getQualifiedNameString() + " " + member.getClass());
            }
        }
    }
    // Add $impl instances for the whole interface hierarchy
    satisfiedInterfaces.add(iface);
    for (Type sat : iface.getSatisfiedTypes()) {
        sat = model.getType().getSupertype(sat.getDeclaration());
        concreteMembersFromSuperinterfaces(model, classBuilder, sat, satisfiedInterfaces);
    }
}

Example 52 with TypeParameter

use of com.redhat.ceylon.model.typechecker.model.TypeParameter in project ceylon-compiler by ceylon.

the class ClassTransformer method addRefinedThrowerMethod.

private void addRefinedThrowerMethod(ClassDefinitionBuilder classBuilder, String error, ClassOrInterface classModel, Function formalMethod) {
    Function refined = refineMethod(classModel, classModel.getType().getTypedMember(formalMethod, Collections.<Type>emptyList()), classModel, formalMethod, classModel.getUnit());
    // the DPM and javac barfs.
    for (java.util.List<Parameter> parameterList : overloads(refined)) {
        MethodDefinitionBuilder mdb = MethodDefinitionBuilder.method(this, refined);
        mdb.isOverride(true);
        mdb.modifiers(transformMethodDeclFlags(refined));
        for (TypeParameter tp : formalMethod.getTypeParameters()) {
            mdb.typeParameter(tp);
            mdb.reifiedTypeParameter(tp);
        }
        for (Parameter param : parameterList) {
            mdb.parameter(param, null, 0, WideningRules.NONE);
        }
        mdb.resultType(refined, 0);
        mdb.body(makeThrowUnresolvedCompilationError(error));
        classBuilder.method(mdb);
    }
}

Example 53 with TypeParameter

use of com.redhat.ceylon.model.typechecker.model.TypeParameter in project ceylon-compiler by ceylon.

the class ClassTransformer method transformClassAliasInstantiator.

/**
     * Builds the instantiator method for a class aliases. In 1.0 you can't
     * actually invoke these, they exist just so there's somewhere to put the
     * class alias annotations. In 1.2 (when we fix #1295) the
     * instantiators will actually do something.
     */
private MethodDefinitionBuilder transformClassAliasInstantiator(final Tree.AnyClass def, Class model, Type aliasedClass) {
    MethodDefinitionBuilder instantiator = MethodDefinitionBuilder.systemMethod(this, NamingBase.getAliasInstantiatorMethodName(model));
    int f = 0;
    if (Strategy.defaultParameterMethodStatic(def.getDeclarationModel())) {
        f = STATIC;
    }
    instantiator.modifiers((transformClassDeclFlags(model) & ~FINAL) | f);
    for (TypeParameter tp : typeParametersOfAllContainers(model, true)) {
        instantiator.typeParameter(tp);
    }
    instantiator.resultType(null, makeJavaType(aliasedClass));
    instantiator.annotationFlags(Annotations.MODEL_AND_USER | Annotations.IGNORE);
    for (final Tree.Parameter param : def.getParameterList().getParameters()) {
        // Overloaded instantiators
        Parameter paramModel = param.getParameterModel();
        at(param);
        transformParameter(instantiator, param, paramModel, Decl.getMemberDeclaration(def, param));
    }
    instantiator.body(make().Throw(makeNewClass(makeJavaType(typeFact().getExceptionType(), JT_CLASS_NEW))));
    return instantiator;
}

Example 54 with TypeParameter

use of com.redhat.ceylon.model.typechecker.model.TypeParameter in project ceylon-compiler by ceylon.

the class CeylonVisitor method transformConstructor.

private void transformConstructor(Tree.Declaration ctor, Tree.ParameterList parameterList, Tree.DelegatedConstructor delegatedCtor, Tree.Block block, Constructor ctorModel, Map<Constructor, CtorDelegation> delegates) {
    TransformationPlan plan = gen.errors().hasDeclarationAndMarkBrokenness(ctor);
    if (plan instanceof Drop) {
        return;
    }
    if (parameterList != null) {
        for (Parameter param : parameterList.getModel().getParameters()) {
            if (Naming.aliasConstructorParameterName(param.getModel())) {
                gen.naming.addVariableSubst(param.getModel(), gen.naming.suffixName(Suffix.$param$, param.getName()));
            }
        }
    }
    final CtorDelegation delegation = delegates.get(ctorModel);
    ListBuffer<JCStatement> stmts = ListBuffer.lb();
    boolean delegatedTo = CtorDelegation.isDelegatedTo(delegates, ctorModel);
    if (delegatedTo && !ctorModel.isAbstract()) {
        Tree.InvocationExpression chainedCtorInvocation;
        if (delegatedCtor != null) {
            chainedCtorInvocation = delegatedCtor.getInvocationExpression();
        } else {
            chainedCtorInvocation = null;
        }
        // We need to generate $delegation$ delegation constructor
        makeDelegationConstructor(ctor, parameterList, delegatedCtor, block, ctorModel, delegation, chainedCtorInvocation);
        JCStatement delegateExpr;
        if (chainedCtorInvocation != null) {
            delegateExpr = gen.expressionGen().transformConstructorDelegation(chainedCtorInvocation, delegation.isSelfDelegation() ? delegation : new CtorDelegation(ctorModel, ctorModel), chainedCtorInvocation, classBuilder, !delegation.isSelfDelegation());
        } else {
            // In this case there is no extends clause in the source code
            // so we have to construct the argument list "by hand".
            ListBuffer<JCExpression> arguments = ListBuffer.<JCExpression>lb();
            for (TypeParameter tp : ((Class) delegation.getConstructor().getContainer()).getTypeParameters()) {
                arguments.add(gen.makeReifiedTypeArgument(tp.getType()));
            }
            arguments.add(gen.naming.makeNamedConstructorName(delegation.getConstructor(), true));
            for (Parameter p : delegation.getConstructor().getFirstParameterList().getParameters()) {
                arguments.add(gen.naming.makeName(p.getModel(), Naming.NA_IDENT));
            }
            delegateExpr = gen.make().Exec(gen.make().Apply(null, gen.naming.makeThis(), arguments.toList()));
        }
        stmts.add(delegateExpr);
    } else if (delegatedCtor != null) {
        stmts.add(gen.expressionGen().transformConstructorDelegation(delegatedCtor, delegation, delegatedCtor.getInvocationExpression(), classBuilder, false));
    } else {
    // no explicit extends clause
    }
    final boolean addBody;
    if (delegatedTo && (delegation.isAbstractSelfOrSuperDelegation())) {
        if (delegation.getConstructor().isAbstract()) {
            stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(null, ctorModel));
            addBody = true;
        } else if (delegation.getExtendingConstructor() != null && delegation.getExtendingConstructor().isAbstract()) {
            stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(delegation.getExtendingConstructor(), ctorModel));
            addBody = true;
        } else {
            addBody = false;
        }
    } else if (delegation.isAbstractSelfDelegation()) {
        // delegating to abstract
        stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(delegation.getExtendingConstructor(), ctorModel));
        addBody = true;
    } else if (delegation.isConcreteSelfDelegation()) {
        stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(delegation.getExtendingConstructor(), ctorModel));
        addBody = true;
    } else {
        // super delegation
        stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(null, ctorModel));
        addBody = true;
    }
    if (ctorModel.isAbstract() && !delegatedTo) {
        stmts.add(gen.make().Throw(gen.make().NewClass(null, List.<JCExpression>nil(), gen.make().QualIdent(gen.syms().ceylonUninvokableErrorType.tsym), List.<JCExpression>nil(), null)));
    }
    List<JCStatement> following = ctorModel.isAbstract() ? List.<JCStatement>nil() : classBuilder.getInitBuilder().copyStatementsBetween(ctorModel, null);
    if (addBody) {
        if (following.isEmpty()) {
            stmts.addAll(gen.statementGen().transformBlock(block));
        } else {
            Name label = gen.naming.aliasName(Naming.Unfix.$return$.toString());
            Transformer<JCStatement, Return> prev = gen.statementGen().returnTransformer(gen.statementGen().new ConstructorReturnTransformer(label));
            try {
                stmts.add(gen.make().Labelled(label, gen.make().DoLoop(gen.make().Block(0, gen.statementGen().transformBlock(block, true)), gen.make().Literal(false))));
            } finally {
                gen.statementGen().returnTransformer(prev);
            }
        }
    }
    ThrowVisitor visitor = new ThrowVisitor();
    block.visit(visitor);
    if (!visitor.getDefinitelyReturnsViaThrow()) {
        stmts.addAll(following);
    }
    String ctorName = !Decl.isDefaultConstructor(ctorModel) ? gen.naming.makeTypeDeclarationName(ctorModel) : null;
    classBuilder.defs(gen.classGen().makeNamedConstructor(ctor, parameterList, ctorModel, classBuilder, Strategy.generateInstantiator(ctorModel), gen.classGen().transformConstructorDeclFlags(ctorModel), false, ctorName, stmts.toList(), DeclNameFlag.QUALIFIED));
}

Example 55 with TypeParameter

use of com.redhat.ceylon.model.typechecker.model.TypeParameter in project ceylon-compiler by ceylon.

the class ClassTransformer method producedTypeParameterBounds.

private java.util.List<java.util.List<Type>> producedTypeParameterBounds(final Reference typedMember, Generic subMethod) {
    java.util.List<java.util.List<Type>> producedTypeParameterBounds = new ArrayList<java.util.List<Type>>(subMethod.getTypeParameters().size());
    for (TypeParameter tp : subMethod.getTypeParameters()) {
        java.util.List<Type> satisfiedTypes = tp.getType().getSatisfiedTypes();
        ArrayList<Type> bounds = new ArrayList<>(satisfiedTypes.size());
        for (Type bound : satisfiedTypes) {
            if (typedMember instanceof Type) {
                bounds.add(bound.substitute((Type) typedMember));
            } else if (typedMember instanceof TypedReference) {
                bounds.add(bound.substitute((TypedReference) typedMember));
            }
        }
        producedTypeParameterBounds.add(bounds);
    }
    return producedTypeParameterBounds;
}