spoon.reflect.reference.CtFieldReference Java Examples

/**
 * For each involved variable, is it constant?–can assume variables whose
 * identifier names are majorly capital letters are constant variables
 * 
 * @param varsAffected
 * @param element
 * @param context
 */
private void analyzeV3_AffectedHasConstant(List<CtVariableAccess> varsAffected, CtElement element,
		Cntx<Object> context) {
	try {
		
		for (CtVariableAccess aVarAffected : varsAffected) {
			boolean currentIsConstant = false;
			if (aVarAffected.getVariable() instanceof CtFieldReference &&
			// Check if it's uppercase
					aVarAffected.getVariable().getSimpleName().toUpperCase()
							.equals(aVarAffected.getVariable().getSimpleName())) {
				currentIsConstant = true;
			}
			
			writeGroupedInfo(context, adjustIdentifyInJson(aVarAffected), 
					CodeFeatures.V3_HAS_CONSTANT,
					currentIsConstant, "FEATURES_VARS");
		}
	} catch (Throwable e) {
		e.printStackTrace();
	}
}
 

@Override
public List<VarLiPlaceholder> createTOS(T ingredientStatement) {
	List<VarLiPlaceholder> results = new ArrayList<>();
	List<CtVariableAccess> varAccessCollected = VariableResolver.collectVariableAccess(ingredientStatement, true);
	for (CtVariableAccess ctVariableAccess : varAccessCollected) {

		int i = 0;

		if (ctVariableAccess instanceof CtVariableRead) {

			if (!(ctVariableAccess instanceof CtFieldRead)
					|| !((CtFieldReference) ctVariableAccess.getVariable()).isStatic()) {

				VarLiPlaceholder pc = new VarLiPlaceholder(ctVariableAccess,
						"_lit_" + ctVariableAccess.getType().getSimpleName() + "_" + i);
				results.add(pc);
			}
		}
	}
	return results;
}
 

public static Collection<CtField<?>> accessibleFieldsFrom(CtTypeReference<?> accessingType, CtTypeReference<?> accessedType) {
    Collection<CtField<?>> accessibleFields = MetaList.newLinkedList();
    try {
        Collection<CtFieldReference<?>> allFields = accessedType.getAllFields();
        for (CtFieldReference<?> field : allFields) {
            CtField<?> actualField = field.getDeclaration();
            if (actualField != null && isVisibleFrom(accessingType, actualField, field.getDeclaringType(), accessedType)) {
                accessibleFields.add(actualField);
            }
        }
    } catch (Throwable e) {
        logWarning(logger(), e.toString());
    }
    return accessibleFields;
}
 

/**
 * Returns all variables in scope, reachable from the ctelement passes as
 * argument
 * 
 * @param element
 * @return
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
public static List<CtVariable> searchVariablesInScope(CtElement element) {
	List<CtVariable> variables = new ArrayList();

	if (element == null) {
		return variables;
	}

	if (element instanceof CtField) {
		return variables;
	}
	// We find the CtClass and returns the fields
	CtClass ctclass = element.getParent(CtClass.class);
	if (ctclass != null) {
		Collection<CtFieldReference<?>> vars = ctclass.getAllFields();
		for (CtFieldReference<?> ctFieldReference : vars) {
			// We dont add private fields from parent classes
			if ((!ctFieldReference.getModifiers().contains(ModifierKind.PRIVATE)
					|| ctclass.getFields().contains(ctFieldReference.getDeclaration()))) {

				// We ignore "serialVersionUID'
				if ((ctFieldReference.getDeclaration() != null)
						&& !"serialVersionUID".equals(ctFieldReference.getDeclaration().getSimpleName()))
					variables.add(ctFieldReference.getDeclaration());
			}
		}

	}

	// We find the parent method and we extract the parameters
	CtMethod method = element.getParent(CtMethod.class);
	if (method != null) {
		List<CtParameter> pars = method.getParameters();
		for (CtParameter ctParameter : pars) {
			variables.add(ctParameter);
		}
	}

	// We find the parent block and we extract the local variables before
	// the element under analysis
	CtBlock parentblock = element.getParent(CtBlock.class);
	if (parentblock != null) {
		int positionEl = parentblock.getStatements().indexOf(element);
		variables.addAll(VariableResolver.retrieveLocalVariables(positionEl, parentblock));
	}

	return variables;

}
 

/**
 * Returns all variables in scope, reachable from the ctelement passes as
 * argument
 * 
 * @param element
 * @return
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
public static List<CtVariable> searchVariablesInScope(CtElement element) {
	List<CtVariable> variables = new ArrayList();

	if (element == null) {
		return variables;
	}

	if (element instanceof CtField) {
		return variables;
	}
	// We find the CtClass and returns the fields
	CtClass ctclass = element.getParent(CtClass.class);
	if (ctclass != null) {
		Collection<CtFieldReference<?>> vars = ctclass.getAllFields();
		for (CtFieldReference<?> ctFieldReference : vars) {
			// We dont add private fields from parent classes
			if ((!ctFieldReference.getModifiers().contains(ModifierKind.PRIVATE)
					|| ctclass.getFields().contains(ctFieldReference.getDeclaration()))) {

				// We ignore "serialVersionUID'
				if ((ctFieldReference.getDeclaration() != null)
						&& !"serialVersionUID".equals(ctFieldReference.getDeclaration().getSimpleName()))
					variables.add(ctFieldReference.getDeclaration());
			}
		}

	}

	// We find the parent method and we extract the parameters
	CtMethod method = element.getParent(CtMethod.class);
	if (method != null) {
		List<CtParameter> pars = method.getParameters();
		for (CtParameter ctParameter : pars) {
			variables.add(ctParameter);
		}
	}

	// We find the parent block and we extract the local variables before
	// the element under analysis
	CtBlock parentblock = element.getParent(CtBlock.class);
	CtElement currentElement = element;
	if (parentblock != null) {
		int positionEl = parentblock.getStatements().indexOf(currentElement);
		variables.addAll(VariableResolver.retrieveLocalVariables(positionEl, parentblock));
		if (ConfigurationProperties.getPropertyBool("consideryvarloops")) {
			variables.addAll(getVarsInFor(currentElement));
			variables.addAll(getVarsInForEach(currentElement));
		}

	}

	return variables;

}
 

/**
 * Adapt the ingredient to the destination according to the mapping. We directly
 * manipulate the variables from the ingredient, which are stored in VarMapping
 * 
 * @param varMapping
 * @param destination
 * @return it returns the original variable reference of each converted variable
 */
@SuppressWarnings("unchecked")
public static Map<VarAccessWrapper, CtVariableAccess> convertIngredient(VarMapping varMapping,
		Map<String, CtVariable> mapToFollow) {

	Map<VarAccessWrapper, CtVariableAccess> originalMap = new HashMap<>();

	Map<VarAccessWrapper, List<CtVariable>> mappedVars = varMapping.getMappedVariables();
	for (VarAccessWrapper var : mappedVars.keySet()) {
		CtVariable varNew = mapToFollow.get(var.getVar().getVariable().getSimpleName());
		//
		CtVariableReference newVarReference = varNew.getReference();

		CtVariableAccess originalVarAccessDestination = var.getVar();
		CtVariableAccess newVarAccessDestination = null;

		// if the var to reference is a local or parameter
		if (newVarReference instanceof CtLocalVariableReference
				|| newVarReference instanceof CtParameterReference) {
			// let's check the destination Writes or Reads
			if (originalVarAccessDestination instanceof CtFieldWrite
					|| originalVarAccessDestination instanceof CtVariableWrite) {
				// We replace the Write by a Var writter
				newVarAccessDestination = MutationSupporter.getFactory().Core().createVariableWrite();
				newVarAccessDestination.setVariable(newVarReference);

			} else { // read
				newVarAccessDestination = MutationSupporter.getFactory().Code().createVariableRead(newVarReference,
						varNew.hasModifier(ModifierKind.STATIC));
			}

		} else
		// else, if we want to reference a field
		if (newVarReference instanceof CtFieldReference) {
			// let's check the destination, write or read
			if (originalVarAccessDestination instanceof CtFieldWrite<?>
					|| originalVarAccessDestination instanceof CtFieldRead<?>) {
				newVarAccessDestination = MutationSupporter.getFactory().Core().createFieldWrite();

			} else {
				newVarAccessDestination = MutationSupporter.getFactory().Core().createFieldRead();

			}
			newVarAccessDestination.setVariable(newVarReference);
		}
		// At the end, for all cases:
		if (newVarAccessDestination != null) {
			originalMap.put(new VarAccessWrapper(newVarAccessDestination), originalVarAccessDestination);
			originalVarAccessDestination.replace(newVarAccessDestination);
		} else {
			logger.error("No destination resolved");
		}

	} // end for
	return originalMap;
}
 

public static boolean isStatic(CtVariableReference varref) {

		if (!(varref instanceof CtFieldReference)) {
			return false;
		}

		CtFieldReference fieldRef = (CtFieldReference) varref;

		return fieldRef.isStatic();

	}
 

public static boolean isStatic(CtVariableReference varref) {

		if (!(varref instanceof CtFieldReference)) {
			return false;
		}

		CtFieldReference fieldRef = (CtFieldReference) varref;

		return fieldRef.isStatic();

	}