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

Example 11 with Function

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

the class ExpressionTransformer method makeMemberValueOrFunctionDeclarationLiteral.

JCExpression makeMemberValueOrFunctionDeclarationLiteral(Node node, Declaration declaration, boolean f) {
    // it's a member we get from its container declaration
    if (declaration.getContainer() instanceof ClassOrInterface == false)
        return makeErroneous(node, "compiler bug: " + declaration.getContainer() + " is not a supported type parameter container");
    ClassOrInterface container = (ClassOrInterface) declaration.getContainer();
    // use the generated class to get to the declaration literal
    JCExpression metamodelCall = makeTypeDeclarationLiteral(container);
    JCExpression metamodelCast = makeJavaType(typeFact().getLanguageModuleDeclarationTypeDeclaration(Decl.isConstructor(declaration) ? "ClassDeclaration" : "ClassOrInterfaceDeclaration").getType(), JT_NO_PRIMITIVES);
    metamodelCall = make().TypeCast(metamodelCast, metamodelCall);
    String memberClassName;
    String memberAccessor;
    if (declaration instanceof Class)
        memberClassName = "ClassDeclaration";
    else if (Decl.isConstructor(declaration))
        memberClassName = "ConstructorDeclaration";
    else if (declaration instanceof Interface)
        memberClassName = "InterfaceDeclaration";
    else if (declaration instanceof Function)
        memberClassName = "FunctionDeclaration";
    else if (declaration instanceof Value) {
        memberClassName = "ValueDeclaration";
    } else {
        return makeErroneous(node, "compiler bug: " + declaration + " is not a supported declaration literal");
    }
    if (Decl.isConstructor(declaration))
        memberAccessor = "getConstructorDeclaration";
    else
        memberAccessor = f ? "getMemberDeclaration" : "getDeclaredMemberDeclaration";
    TypeDeclaration metamodelDecl = (TypeDeclaration) typeFact().getLanguageModuleDeclarationDeclaration(memberClassName);
    JCExpression memberType = makeJavaType(metamodelDecl.getType());
    JCExpression reifiedMemberType = makeReifiedTypeArgument(metamodelDecl.getType());
    JCExpression memberCall = make().Apply(List.of(memberType), makeSelect(metamodelCall, memberAccessor), List.of(reifiedMemberType, ceylonLiteral(declaration.getName())));
    return memberCall;
}

Example 12 with Function

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

the class AbstractTransformer method makeJavaType.

JCExpression makeJavaType(final Type ceylonType, final int flags) {
    Type type = ceylonType;
    if (type == null || type.isUnknown())
        return make().Erroneous();
    if (type.getDeclaration() instanceof Constructor) {
        type = type.getExtendedType();
    }
    // resolve aliases
    if ((flags & JT_CLASS_LITERAL) == 0)
        type = type.resolveAliases();
    if ((flags & __JT_RAW_TP_BOUND) != 0 && type.isTypeParameter()) {
        type = type.getExtendedType();
    }
    if (type.isUnion()) {
        for (Type pt : type.getCaseTypes()) {
            if (pt.getDeclaration().isAnonymous()) {
                // found one, let's try to make it simpler
                Type simplerType = typeFact().denotableType(type);
                if (!simplerType.isNothing() && !simplerType.isUnion()) {
                    type = simplerType;
                } else if (isCeylonBoolean(simplifyType(simplerType))) {
                    type = simplerType;
                }
                break;
            }
        }
    }
    if (type.getDeclaration().isJavaEnum()) {
        type = type.getExtendedType();
    }
    if (type.isTypeConstructor()) {
        return make().QualIdent(syms().ceylonAbstractTypeConstructorType.tsym);
    }
    // ERASURE
    if ((flags & JT_CLASS_LITERAL) == 0 && // literals to the alias class
    willEraseToObject(type)) {
        // - The Ceylon type U|V results in the Java type Object
        if ((flags & JT_SATISFIES) != 0) {
            return null;
        } else {
            return make().Type(syms().objectType);
        }
    } else if (willEraseToAnnotation(type)) {
        return make().Type(syms().annotationType);
    } else if (willEraseToException(type)) {
        if ((flags & JT_CLASS_NEW) != 0 || (flags & JT_EXTENDS) != 0) {
            return makeIdent(syms().ceylonExceptionType);
        } else {
            return make().Type(syms().exceptionType);
        }
    } else if (willEraseToThrowable(type)) {
        if ((flags & JT_CLASS_NEW) != 0 || (flags & JT_EXTENDS) != 0) {
            return makeIdent(syms().throwableType);
        } else {
            return make().Type(syms().throwableType);
        }
    } else if (willEraseToSequence(type)) {
        if ((flags & (JT_CLASS_NEW | JT_EXTENDS | JT_IS)) == 0) {
            Type typeArg = simplifyType(type).getTypeArgumentList().get(0);
            Type seqType = typeFact.getSequenceType(typeArg);
            if (typeFact.isOptionalType(type)) {
                type = typeFact.getOptionalType(seqType);
            } else {
                type = seqType;
            }
        }
    } else if ((flags & (JT_SATISFIES | JT_EXTENDS | JT_NO_PRIMITIVES | JT_CLASS_NEW)) == 0 && ((isCeylonBasicType(type) && !isOptional(type)) || isJavaString(type))) {
        if (isCeylonString(type) || isJavaString(type)) {
            return make().Type(syms().stringType);
        } else if (isCeylonBoolean(type)) {
            return make().TypeIdent(TypeTags.BOOLEAN);
        } else if (isCeylonInteger(type)) {
            if ("short".equals(type.getUnderlyingType())) {
                return make().TypeIdent(TypeTags.SHORT);
            } else if ((flags & JT_SMALL) != 0 || "int".equals(type.getUnderlyingType())) {
                return make().TypeIdent(TypeTags.INT);
            } else {
                return make().TypeIdent(TypeTags.LONG);
            }
        } else if (isCeylonFloat(type)) {
            if ((flags & JT_SMALL) != 0 || "float".equals(type.getUnderlyingType())) {
                return make().TypeIdent(TypeTags.FLOAT);
            } else {
                return make().TypeIdent(TypeTags.DOUBLE);
            }
        } else if (isCeylonCharacter(type)) {
            if ("char".equals(type.getUnderlyingType())) {
                return make().TypeIdent(TypeTags.CHAR);
            } else {
                return make().TypeIdent(TypeTags.INT);
            }
        } else if (isCeylonByte(type)) {
            return make().TypeIdent(TypeTags.BYTE);
        }
    } else if (isCeylonBoolean(type) && !isTypeParameter(type)) {
        //&& (flags & TYPE_ARGUMENT) == 0){
        // special case to get rid of $true and $false types
        type = typeFact.getBooleanType();
    } else if ((flags & JT_VALUE_TYPE) == 0 && isJavaArray(type)) {
        return getJavaArrayElementType(type, flags);
    }
    JCExpression jt = null;
    Type simpleType;
    if ((flags & JT_CLASS_LITERAL) == 0)
        simpleType = simplifyType(type);
    else
        simpleType = type;
    // see if we need to cross methods when looking up container types
    // this is required to properly collect all the type parameters for local interfaces
    // which we pull up to the toplevel and capture all the container type parameters
    boolean needsQualifyingTypeArgumentsFromLocalContainers = Decl.isCeylon(simpleType.getDeclaration()) && simpleType.getDeclaration() instanceof Interface && // this is only valid for interfaces, not for their companion which stay where they are
    (flags & JT_COMPANION) == 0;
    java.util.List<Reference> qualifyingTypes = null;
    Reference qType = simpleType;
    boolean hasTypeParameters = false;
    while (qType != null) {
        hasTypeParameters |= !qType.getTypeArguments().isEmpty();
        if (qualifyingTypes != null)
            qualifyingTypes.add(qType);
        Declaration typeDeclaration = qType.getDeclaration();
        // all the containing type parameters that it captures
        if (// local or anonymous
        (Decl.isLocal(typeDeclaration) || !typeDeclaration.isNamed()) && needsQualifyingTypeArgumentsFromLocalContainers && typeDeclaration instanceof ClassOrInterface) {
            Declaration container = Decl.getDeclarationScope(typeDeclaration.getContainer());
            while (container instanceof Function) {
                qType = ((Function) container).getReference();
                if (qualifyingTypes == null) {
                    qualifyingTypes = new java.util.ArrayList<Reference>();
                    qualifyingTypes.add(simpleType);
                }
                hasTypeParameters = true;
                qualifyingTypes.add(qType);
                container = Decl.getDeclarationScope(container.getContainer());
            }
            if (container instanceof TypeDeclaration) {
                qType = ((TypeDeclaration) container).getType();
            } else {
                qType = null;
            }
        } else if (typeDeclaration.isNamed()) {
            // avoid anonymous types which may pretend that they have a qualifying type
            qType = qType.getQualifyingType();
            if (qType != null && qType.getDeclaration() instanceof ClassOrInterface == false) {
                // sometimes the typechecker throws qualifying intersections at us and
                // we can't make anything of them, since some members may be unrelated to
                // the qualified declaration. This happens with "extends super.Foo()"
                // for example. See https://github.com/ceylon/ceylon-compiler/issues/1478
                qType = ((Type) qType).getSupertype((TypeDeclaration) typeDeclaration.getContainer());
            }
        } else {
            // skip local declaration containers
            qType = null;
        }
        // delayed allocation if we have a qualifying type
        if (qualifyingTypes == null && qType != null) {
            qualifyingTypes = new java.util.ArrayList<Reference>();
            qualifyingTypes.add(simpleType);
        }
    }
    int firstQualifyingTypeWithTypeParameters = qualifyingTypes != null ? qualifyingTypes.size() - 1 : 0;
    // find the first static one, from the right to the left
    if (qualifyingTypes != null) {
        for (Reference pt : qualifyingTypes) {
            Declaration declaration = pt.getDeclaration();
            if (declaration instanceof TypeDeclaration && Decl.isStatic((TypeDeclaration) declaration)) {
                break;
            }
            firstQualifyingTypeWithTypeParameters--;
        }
        if (firstQualifyingTypeWithTypeParameters < 0)
            firstQualifyingTypeWithTypeParameters = 0;
        // put them in outer->inner order
        Collections.reverse(qualifyingTypes);
    }
    if (((flags & JT_RAW) == 0) && hasTypeParameters && !rawSupertype(ceylonType, flags)) {
        // special case for interfaces because we pull them into toplevel types
        if (Decl.isCeylon(simpleType.getDeclaration()) && qualifyingTypes != null && qualifyingTypes.size() > 1 && simpleType.getDeclaration() instanceof Interface && // this is only valid for interfaces, not for their companion which stay where they are
        (flags & JT_COMPANION) == 0) {
            JCExpression baseType;
            TypeDeclaration tdecl = simpleType.getDeclaration();
            // collect all the qualifying type args we'd normally have
            java.util.List<TypeParameter> qualifyingTypeParameters = new java.util.ArrayList<TypeParameter>();
            java.util.Map<TypeParameter, Type> qualifyingTypeArguments = new java.util.HashMap<TypeParameter, Type>();
            collectQualifyingTypeArguments(qualifyingTypeParameters, qualifyingTypeArguments, qualifyingTypes);
            ListBuffer<JCExpression> typeArgs = makeTypeArgs(isCeylonCallable(simpleType), flags, qualifyingTypeArguments, qualifyingTypeParameters, simpleType);
            if (isCeylonCallable(type) && (flags & JT_CLASS_NEW) != 0) {
                baseType = makeIdent(syms().ceylonAbstractCallableType);
            } else {
                baseType = naming.makeDeclarationName(tdecl, DeclNameFlag.QUALIFIED);
            }
            if (typeArgs != null && typeArgs.size() > 0) {
                jt = make().TypeApply(baseType, typeArgs.toList());
            } else {
                jt = baseType;
            }
        } else if ((flags & JT_NON_QUALIFIED) == 0) {
            int index = 0;
            if (qualifyingTypes != null) {
                for (Reference qualifyingType : qualifyingTypes) {
                    jt = makeParameterisedType(qualifyingType.getType(), type, flags, jt, qualifyingTypes, firstQualifyingTypeWithTypeParameters, index);
                    index++;
                }
            } else {
                jt = makeParameterisedType(simpleType, type, flags, jt, qualifyingTypes, firstQualifyingTypeWithTypeParameters, index);
            }
        } else {
            jt = makeParameterisedType(type, type, flags, jt, qualifyingTypes, 0, 0);
        }
    } else {
        TypeDeclaration tdecl = simpleType.getDeclaration();
        // - The Ceylon type T results in the Java type T
        if (isCeylonCallable(type) && (flags & JT_CLASS_NEW) != 0) {
            jt = makeIdent(syms().ceylonAbstractCallableType);
        } else if (tdecl instanceof TypeParameter)
            jt = makeQuotedIdent(tdecl.getName());
        else // don't use underlying type if we want no primitives
        if ((flags & (JT_SATISFIES | JT_NO_PRIMITIVES)) != 0 || simpleType.getUnderlyingType() == null) {
            jt = naming.makeDeclarationName(tdecl, jtFlagsToDeclNameOpts(flags));
        } else
            jt = makeQuotedFQIdent(simpleType.getUnderlyingType());
    }
    return (jt != null) ? jt : makeErroneous(null, "compiler bug: the java type corresponding to " + ceylonType + " could not be computed");
}

Example 13 with Function

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

the class AbstractTransformer method getTypedSignature.

private java.util.List<Type> getTypedSignature(Type currentType, TypedDeclaration found) {
    // check that its signature is compatible
    java.util.List<ParameterList> parameterLists = ((Function) found).getParameterLists();
    if (parameterLists == null || parameterLists.isEmpty())
        return null;
    // only consider first param list
    java.util.List<Parameter> parameters = parameterLists.get(0).getParameters();
    if (parameters == null)
        return null;
    TypedReference typedMember = currentType.getTypedMember(found, Collections.<Type>emptyList());
    if (typedMember == null)
        return null;
    java.util.List<Type> typedSignature = new ArrayList<Type>(parameters.size());
    for (Parameter p : parameters) {
        Type parameterType = typedMember.getTypedParameter(p).getFullType();
        typedSignature.add(parameterType);
    }
    return typedSignature;
}

Example 14 with Function

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

the class AbstractTransformer method nonWideningType.

Type nonWideningType(TypedReference declaration, TypedReference refinedDeclaration) {
    final Reference pr;
    if (declaration.equals(refinedDeclaration)) {
        pr = declaration;
    } else {
        Type refinedType = refinedDeclaration.getType();
        // since it may have changed name
        if (refinedType.getDeclaration() instanceof TypeParameter && refinedType.getDeclaration().getContainer() instanceof Function) {
            // find its index in the refined declaration
            TypeParameter refinedTypeParameter = (TypeParameter) refinedType.getDeclaration();
            Function refinedMethod = (Function) refinedTypeParameter.getContainer();
            int i = 0;
            for (TypeParameter tp : refinedMethod.getTypeParameters()) {
                if (tp.getName().equals(refinedTypeParameter.getName()))
                    break;
                i++;
            }
            if (i >= refinedMethod.getTypeParameters().size()) {
                throw new BugException("can't find type parameter " + refinedTypeParameter.getName() + " in its container " + refinedMethod.getName());
            }
            // the refining method type parameter should be at the same index
            if (declaration.getDeclaration() instanceof Function == false)
                throw new BugException("refining declaration is not a method: " + declaration);
            Function refiningMethod = (Function) declaration.getDeclaration();
            if (i >= refiningMethod.getTypeParameters().size()) {
                throw new BugException("refining method does not have enough type parameters to refine " + refinedMethod.getName());
            }
            pr = refiningMethod.getTypeParameters().get(i).getType();
        } else {
            pr = refinedType;
        }
    }
    if (pr.getDeclaration() instanceof Functional && Decl.isMpl((Functional) pr.getDeclaration())) {
        // the innermost Callable.
        return getReturnTypeOfCallable(pr.getFullType());
    }
    return pr.getType();
}

Example 15 with Function

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

the class AbstractTransformer method collectRefinedMembers.

private void collectRefinedMembers(Type currentType, String name, java.util.List<Type> signature, boolean ellipsis, java.util.Set<TypeDeclaration> visited, Set<TypedDeclaration> ret, boolean ignoreFirst) {
    TypeDeclaration decl = currentType.getDeclaration();
    if (visited.contains(decl)) {
        return;
    } else {
        visited.add(decl);
        Type et = currentType.getExtendedType();
        if (et != null) {
            collectRefinedMembers(et, name, signature, ellipsis, visited, ret, false);
        }
        for (Type st : currentType.getSatisfiedTypes()) {
            collectRefinedMembers(st, name, signature, ellipsis, visited, ret, false);
        }
        // we're collecting refined members, not the refining one
        if (!ignoreFirst) {
            TypedDeclaration found = (TypedDeclaration) decl.getDirectMember(name, signature, ellipsis);
            if (found instanceof Function) {
                // do not trust getDirectMember because if you ask it for [Integer,String] and it has [Integer,E] it does not
                // know that E=String and will not make it match, and will just return any member when there is overloading,
                // including one with signature [String] when you asked for [Integer,String]
                java.util.List<Type> typedSignature = getTypedSignature(currentType, found);
                if (typedSignature != null && hasMatchingSignature(signature, typedSignature))
                    ret.add(found);
            }
        }
    }
}