Examples with HostedGraphKit com.oracle.svm.hosted.phases.HostedGraphKit used on opensource projects

Example 6 with HostedGraphKit

use of com.oracle.svm.hosted.phases.HostedGraphKit in project graal by oracle.

the class CEntryPointCallStubMethod method adaptReturnValue.

private ValueNode adaptReturnValue(ResolvedJavaMethod method, HostedProviders providers, Purpose purpose, UniverseMetaAccess metaAccess, NativeLibraries nativeLibraries, HostedGraphKit kit, ValueNode invokeValue) {
    ValueNode returnValue = invokeValue;
    if (returnValue.getStackKind().isPrimitive()) {
        return returnValue;
    }
    JavaType returnType = method.getSignature().getReturnType(null);
    ElementInfo typeInfo = nativeLibraries.findElementInfo(returnType);
    if (typeInfo instanceof EnumInfo) {
        UserError.guarantee(typeInfo.getChildren().stream().anyMatch(EnumValueInfo.class::isInstance), "Enum class " + returnType.toJavaName() + " needs a method that is annotated with @" + CEnumValue.class + " because it is used as the return type of an entry point method: " + targetMethod.format("%H.%n(%p)"));
        IsNullNode isNull = kit.unique(new IsNullNode(returnValue));
        kit.startIf(isNull, BranchProbabilityNode.VERY_SLOW_PATH_PROBABILITY);
        kit.thenPart();
        ResolvedJavaType enumExceptionType = metaAccess.lookupJavaType(RuntimeException.class);
        NewInstanceNode enumException = kit.append(new NewInstanceNode(enumExceptionType, true));
        Iterator<ResolvedJavaMethod> enumExceptionCtor = Arrays.stream(enumExceptionType.getDeclaredConstructors()).filter(c -> c.getSignature().getParameterCount(false) == 1 && c.getSignature().getParameterType(0, null).equals(metaAccess.lookupJavaType(String.class))).iterator();
        ConstantNode enumExceptionMessage = kit.createConstant(kit.getConstantReflection().forString("null return value cannot be converted to a C enum value"), JavaKind.Object);
        kit.createJavaCallWithExceptionAndUnwind(InvokeKind.Special, enumExceptionCtor.next(), enumException, enumExceptionMessage);
        assert !enumExceptionCtor.hasNext();
        kit.append(new CEntryPointLeaveNode(LeaveAction.ExceptionAbort, enumException));
        kit.append(new DeadEndNode());
        kit.endIf();
        // Always return enum values as a signed word because it should never be a problem if
        // the caller expects a narrower integer type and the various checks already handle
        // replacements with word types
        CInterfaceEnumTool tool = new CInterfaceEnumTool(providers.getMetaAccess(), providers.getSnippetReflection());
        JavaKind cEnumReturnType = providers.getWordTypes().getWordKind();
        assert !cEnumReturnType.isUnsigned() : "requires correct representation of signed values";
        returnValue = tool.createEnumValueInvoke(kit, (EnumInfo) typeInfo, cEnumReturnType, returnValue);
    } else if (purpose != Purpose.ANALYSIS) {
        // for analysis test cases: abort only during compilation
        throw UserError.abort("Entry point method return types are restricted to primitive types, word types and enumerations (@" + CEnum.class.getSimpleName() + "): " + targetMethod.format("%H.%n(%p)"));
    }
    return returnValue;
}

Example 7 with HostedGraphKit

use of com.oracle.svm.hosted.phases.HostedGraphKit in project graal by oracle.

the class CFunctionCallStubMethod method adaptSignatureAndConvertArguments.

private static Signature adaptSignatureAndConvertArguments(ResolvedJavaMethod method, HostedProviders providers, NativeLibraries nativeLibraries, HostedGraphKit kit, Signature signature, List<ValueNode> arguments) {
    MetaAccessProvider metaAccess = providers.getMetaAccess();
    JavaType returnType = signature.getReturnType(null);
    JavaType[] parameterTypes = signature.toParameterTypes(null);
    for (int i = 0; i < parameterTypes.length; i++) {
        if (!isPrimitiveOrWord(providers, parameterTypes[i])) {
            ElementInfo typeInfo = nativeLibraries.findElementInfo(parameterTypes[i]);
            if (typeInfo instanceof EnumInfo) {
                UserError.guarantee(typeInfo.getChildren().stream().anyMatch(EnumValueInfo.class::isInstance), "Enum class " + returnType.toJavaName() + " needs a method that is annotated with @" + CEnumValue.class.getSimpleName() + " because it is used as a parameter of a method annotated with @" + CFunction.class.getSimpleName() + ": " + method.format("%H.%n(%p)"));
                ValueNode argumentValue = arguments.get(i);
                IsNullNode isNull = kit.unique(new IsNullNode(argumentValue));
                kit.startIf(isNull, BranchProbabilityNode.VERY_SLOW_PATH_PROBABILITY);
                kit.thenPart();
                ResolvedJavaType enumExceptionType = metaAccess.lookupJavaType(RuntimeException.class);
                NewInstanceNode enumException = kit.append(new NewInstanceNode(enumExceptionType, true));
                Iterator<ResolvedJavaMethod> enumExceptionCtor = Arrays.stream(enumExceptionType.getDeclaredConstructors()).filter(c -> c.getSignature().getParameterCount(false) == 1 && c.getSignature().getParameterType(0, null).equals(metaAccess.lookupJavaType(String.class))).iterator();
                ConstantNode enumExceptionMessage = kit.createConstant(kit.getConstantReflection().forString("null return value cannot be converted to a C enum value"), JavaKind.Object);
                kit.createJavaCallWithExceptionAndUnwind(InvokeKind.Special, enumExceptionCtor.next(), enumException, enumExceptionMessage);
                assert !enumExceptionCtor.hasNext();
                kit.append(new UnwindNode(enumException));
                kit.endIf();
                CInterfaceEnumTool tool = new CInterfaceEnumTool(metaAccess, providers.getSnippetReflection());
                argumentValue = tool.createEnumValueInvoke(kit, (EnumInfo) typeInfo, cEnumKind, argumentValue);
                arguments.set(i, argumentValue);
                parameterTypes[i] = metaAccess.lookupJavaType(cEnumKind.toJavaClass());
            } else {
                throw UserError.abort("@" + CFunction.class.getSimpleName() + " parameter types are restricted to primitive types, word types and enumerations (@" + CEnum.class.getSimpleName() + "): " + method.format("%H.%n(%p)"));
            }
        }
    }
    if (!isPrimitiveOrWord(providers, returnType)) {
        // Assume enum: actual checks and conversion are in adaptReturnValue()
        returnType = providers.getWordTypes().getWordImplType();
    }
    JavaType actualReturnType = returnType;
    return new Signature() {

        @Override
        public int getParameterCount(boolean receiver) {
            return parameterTypes.length;
        }

        @Override
        public JavaType getParameterType(int index, ResolvedJavaType accessingClass) {
            return parameterTypes[index];
        }

        @Override
        public JavaType getReturnType(ResolvedJavaType accessingClass) {
            return actualReturnType;
        }
    };
}