Examples with JvmFormalParameter org.eclipse.xtext.common.types.JvmFormalParameter used on opensource projects

Example 21 with JvmFormalParameter

use of org.eclipse.xtext.common.types.JvmFormalParameter in project xtext-xtend by eclipse.

the class XtendValidator method getParamTypes.

protected List<JvmType> getParamTypes(JvmOperation jvmOperation, boolean wrapPrimitives) {
    List<JvmType> types = newArrayList();
    for (JvmFormalParameter p : jvmOperation.getParameters()) {
        LightweightTypeReference typeReference = toLightweightTypeReference(p.getParameterType());
        if (wrapPrimitives) {
            typeReference = typeReference.getWrapperTypeIfPrimitive();
        }
        types.add(typeReference.getType());
    }
    return types;
}

Example 22 with JvmFormalParameter

use of org.eclipse.xtext.common.types.JvmFormalParameter in project xtext-xtend by eclipse.

the class CacheMethodCompileStrategy method apply.

@Override
public void apply(ITreeAppendable appendable) {
    JvmOperation cacheMethod = (JvmOperation) logicalContainerProvider.getLogicalContainer(createExtensionInfo.getCreateExpression());
    JvmDeclaredType containerType = cacheMethod.getDeclaringType();
    IResolvedTypes resolvedTypes = typeResolver.resolveTypes(containerType);
    final ITypeReferenceOwner owner = new StandardTypeReferenceOwner(services, containerType);
    LightweightTypeReference listType = owner.newReferenceTo(ArrayList.class, new TypeReferenceInitializer<ParameterizedTypeReference>() {

        @Override
        public LightweightTypeReference enhance(ParameterizedTypeReference reference) {
            reference.addTypeArgument(owner.newWildcardTypeReference());
            return reference;
        }
    });
    String cacheVarName = cacheField.getSimpleName();
    String cacheKeyVarName = appendable.declareSyntheticVariable("CacheKey", "_cacheKey");
    appendable.append("final ").append(listType).append(" ").append(cacheKeyVarName).append(" = ").append(CollectionLiterals.class).append(".newArrayList(");
    List<JvmFormalParameter> list = cacheMethod.getParameters();
    for (Iterator<JvmFormalParameter> iterator = list.iterator(); iterator.hasNext(); ) {
        JvmFormalParameter jvmFormalParameter = iterator.next();
        appendable.append(getVarName(jvmFormalParameter));
        if (iterator.hasNext()) {
            appendable.append(", ");
        }
    }
    appendable.append(");");
    // declare result variable
    LightweightTypeReference returnType = resolvedTypes.getActualType(initializerMethod.getParameters().get(0));
    if (returnType != null) {
        appendable.newLine().append("final ").append(returnType);
    } else {
        appendable.newLine().append("final Object");
    }
    String resultVarName = "_result";
    appendable.append(" ").append(resultVarName).append(";");
    // open synchronize block
    appendable.newLine().append("synchronized (").append(cacheVarName).append(") {");
    appendable.increaseIndentation();
    // if the cache contains the key return the previously created object.
    appendable.newLine().append("if (").append(cacheVarName).append(".containsKey(").append(cacheKeyVarName).append(")) {");
    appendable.increaseIndentation();
    appendable.newLine().append("return ").append(cacheVarName).append(".get(").append(cacheKeyVarName).append(");");
    appendable.decreaseIndentation().newLine().append("}");
    // execute the creation
    compiler.toJavaStatement(createExtensionInfo.getCreateExpression(), appendable, true);
    appendable.newLine();
    appendable.append(resultVarName).append(" = ");
    compiler.toJavaExpression(createExtensionInfo.getCreateExpression(), appendable);
    appendable.append(";");
    // store the newly created object in the cache
    appendable.newLine().append(cacheVarName).append(".put(").append(cacheKeyVarName).append(", ");
    LightweightTypeReference fieldType = resolvedTypes.getActualType(cacheField);
    LightweightTypeReference declaredResultType = fieldType.getTypeArguments().get(1);
    boolean castRequired = false;
    if (!declaredResultType.isAssignableFrom(returnType)) {
        castRequired = true;
        appendable.append("(").append(declaredResultType).append(")");
    }
    appendable.append(resultVarName).append(");");
    // close synchronize block
    appendable.decreaseIndentation();
    appendable.newLine().append("}");
    appendable.newLine().append(initializerMethod.getSimpleName()).append("(").append(resultVarName);
    for (JvmFormalParameter parameter : cacheMethod.getParameters()) {
        appendable.append(", ").append(parameter.getName());
    }
    appendable.append(");");
    // return the result
    appendable.newLine().append("return ");
    if (castRequired) {
        appendable.append("(").append(declaredResultType).append(")");
    }
    appendable.append(resultVarName).append(";");
}

Example 23 with JvmFormalParameter

use of org.eclipse.xtext.common.types.JvmFormalParameter in project xtext-xtend by eclipse.

the class DispatchMethodCompileStrategy method generateActualDispatchCall.

protected void generateActualDispatchCall(JvmOperation dispatchOperation, JvmOperation actualOperationToCall, ITreeAppendable a, ITypeReferenceOwner owner) {
    a.append(actualOperationToCall.getSimpleName()).append("(");
    Iterator<JvmFormalParameter> iter1 = dispatchOperation.getParameters().iterator();
    for (Iterator<JvmFormalParameter> iter2 = actualOperationToCall.getParameters().iterator(); iter2.hasNext(); ) {
        JvmFormalParameter p1 = iter1.next();
        JvmFormalParameter p2 = iter2.next();
        LightweightTypeReference type1 = owner.toLightweightTypeReference(p1.getParameterType());
        LightweightTypeReference type2 = owner.toLightweightTypeReference(p2.getParameterType());
        if (!type2.isAssignableFrom(type1, new TypeConformanceComputationArgument(true, false, true, true, false, false))) {
            a.append("(").append(type2.getWrapperTypeIfPrimitive()).append(")");
        }
        if (typeReferences.is(p2.getParameterType(), Void.class)) {
            a.append("null");
        } else {
            a.append(getVarName(p1, a));
        }
        if (iter2.hasNext()) {
            a.append(", ");
        }
    }
    a.append(")");
}

Example 24 with JvmFormalParameter

use of org.eclipse.xtext.common.types.JvmFormalParameter in project xtext-xtend by eclipse.

the class MemberFromSuperImplementor method initializeExecutableBuilder.

protected void initializeExecutableBuilder(final AbstractExecutableBuilder builder, final JvmDeclaredType overrider, final IResolvedExecutable overridden) {
    final JvmExecutable executable = overridden.getDeclaration();
    builder.setContext(overrider);
    builder.setVisibility(overridden.getDeclaration().getVisibility());
    final Procedure2<LightweightTypeReference, Integer> _function = (LightweightTypeReference it, Integer index) -> {
        final JvmFormalParameter declaredParameter = executable.getParameters().get((index).intValue());
        final AbstractParameterBuilder parameterBuilder = builder.newParameterBuilder();
        parameterBuilder.setName(declaredParameter.getSimpleName());
        parameterBuilder.setType(it);
        JvmAnnotationReference _findAnnotation = this.annotationLookup.findAnnotation(declaredParameter, Extension.class);
        boolean _tripleNotEquals = (_findAnnotation != null);
        parameterBuilder.setExtensionFlag(_tripleNotEquals);
    };
    IterableExtensions.<LightweightTypeReference>forEach(overridden.getResolvedParameterTypes(), _function);
    builder.setVarArgsFlag(executable.isVarArgs());
    builder.setExceptions(overridden.getResolvedExceptions());
}

Example 25 with JvmFormalParameter

use of org.eclipse.xtext.common.types.JvmFormalParameter in project xtext-xtend by eclipse.

the class ExtractMethodRefactoring method checkInitialConditions.

@Override
public RefactoringStatus checkInitialConditions(final IProgressMonitor pm) throws CoreException, OperationCanceledException {
    StatusWrapper status = statusProvider.get();
    IResolvedTypes resolvedTypes = typeResolver.resolveTypes(firstExpression, new CancelIndicator() {

        @Override
        public boolean isCanceled() {
            return pm.isCanceled();
        }
    });
    try {
        Set<String> calledExternalFeatureNames = newHashSet();
        returnType = calculateReturnType(resolvedTypes);
        if (returnType != null && !equal("void", returnType.getIdentifier()))
            returnExpression = lastExpression;
        boolean isReturnAllowed = isEndOfOriginalMethod();
        for (EObject element : EcoreUtil2.eAllContents(originalMethod.getExpression())) {
            if (pm.isCanceled()) {
                throw new OperationCanceledException();
            }
            boolean isLocalExpression = EcoreUtil.isAncestor(expressions, element);
            if (element instanceof XFeatureCall) {
                XFeatureCall featureCall = (XFeatureCall) element;
                JvmIdentifiableElement feature = featureCall.getFeature();
                LightweightTypeReference featureType = resolvedTypes.getActualType(featureCall);
                boolean isLocalFeature = EcoreUtil.isAncestor(expressions, feature);
                if (!isLocalFeature && isLocalExpression) {
                    // call-out
                    if (feature instanceof JvmFormalParameter || feature instanceof XVariableDeclaration) {
                        if (!calledExternalFeatureNames.contains(feature.getSimpleName())) {
                            calledExternalFeatureNames.add(feature.getSimpleName());
                            ParameterInfo parameterInfo = new ParameterInfo(featureType.getIdentifier(), feature.getSimpleName(), parameterInfos.size());
                            parameterInfos.add(parameterInfo);
                            parameter2type.put(parameterInfo, featureType);
                        }
                        externalFeatureCalls.put(feature.getSimpleName(), featureCall);
                    }
                } else if (isLocalFeature && !isLocalExpression) {
                    // call-in
                    if (returnExpression != null) {
                        status.add(RefactoringStatus.FATAL, "Ambiguous return value: Multiple local variables are accessed in subsequent code.");
                        break;
                    }
                    returnExpression = featureCall;
                    returnType = featureType;
                }
            } else if (isLocalExpression) {
                if (element instanceof XReturnExpression && !isReturnAllowed) {
                    status.add(RefactoringStatus.FATAL, "Extracting method would break control flow due to return statements.");
                    break;
                } else if (element instanceof JvmTypeReference) {
                    JvmType type = ((JvmTypeReference) element).getType();
                    if (type instanceof JvmTypeParameter) {
                        JvmOperation operation = associations.getDirectlyInferredOperation(originalMethod);
                        if (operation != null) {
                            List<JvmTypeParameter> typeParameters = operation.getTypeParameters();
                            if (typeParameters.contains(type))
                                neededTypeParameters.add((JvmTypeParameter) type);
                        }
                    }
                } else if (element instanceof JvmFormalParameter)
                    localFeatureNames.add(((JvmFormalParameter) element).getName());
                else if (element instanceof XVariableDeclaration)
                    localFeatureNames.add(((XVariableDeclaration) element).getIdentifier());
            }
        }
    } catch (OperationCanceledException e) {
        throw e;
    } catch (Exception exc) {
        handleException(exc, status);
    }
    return status.getRefactoringStatus();
}