private void createMethodsForSingleField(FieldNode fieldNode) {
if (shouldFieldBeIgnored(fieldNode)) return;
if (hasAnnotation(fieldNode.getType(), DSL_CONFIG_ANNOTATION)) {
createSingleDSLObjectClosureMethod(fieldNode);
createSingleFieldSetterMethod(fieldNode);
} else if (ASTHelper.isMap(fieldNode.getType())) createMapMethod(fieldNode);
else if (ASTHelper.isList(fieldNode.getType())) createListMethod(fieldNode);
else createSingleFieldSetterMethod(fieldNode);
}
private void createSingleFieldSetterMethod(FieldNode fieldNode) {
MethodBuilder.createPublicMethod(fieldNode.getName())
.param(fieldNode.getType(), "value")
.assignToProperty(fieldNode.getName(), varX("value"))
.addTo(annotatedClass);
if (fieldNode.getType().equals(ClassHelper.boolean_TYPE)) {
MethodBuilder.createPublicMethod(fieldNode.getName())
.callThis(fieldNode.getName(), constX(true))
.addTo(annotatedClass);
}
}
private Statement createConstructorStatement(
ClassNode cNode,
PropertyNode pNode,
List<String> knownImmutableClasses,
List<String> knownImmutables) {
FieldNode fNode = pNode.getField();
final ClassNode fieldType = fNode.getType();
Statement statement = null;
if (fieldType.isArray() || isOrImplements(fieldType, CLONEABLE_TYPE)) {
statement = createConstructorStatementArrayOrCloneable(fNode);
} else if (isKnownImmutableClass(fieldType, knownImmutableClasses)
|| isKnownImmutable(pNode.getName(), knownImmutables)) {
statement = createConstructorStatementDefault(fNode);
} else if (fieldType.isDerivedFrom(DATE_TYPE)) {
statement = createConstructorStatementDate(fNode);
} else if (isOrImplements(fieldType, COLLECTION_TYPE)
|| fieldType.isDerivedFrom(COLLECTION_TYPE)
|| isOrImplements(fieldType, MAP_TYPE)
|| fieldType.isDerivedFrom(MAP_TYPE)) {
statement = createConstructorStatementCollection(fNode);
} else if (fieldType.isResolved()) {
addError(
createErrorMessage(cNode.getName(), fNode.getName(), fieldType.getName(), "compiling"),
fNode);
statement = EmptyStatement.INSTANCE;
} else {
statement = createConstructorStatementGuarded(cNode, fNode);
}
return statement;
}
private void assertMembersNamesAreUnique() {
Map<String, FieldNode> allDslCollectionFieldNodesOfHierarchy = new HashMap<String, FieldNode>();
for (ClassNode level : ASTHelper.getHierarchyOfDSLObjectAncestors(annotatedClass)) {
for (FieldNode field : level.getFields()) {
if (!ASTHelper.isListOrMap(field.getType())) continue;
String memberName = getElementNameForCollectionField(field);
FieldNode conflictingField = allDslCollectionFieldNodesOfHierarchy.get(memberName);
if (conflictingField != null) {
addCompileError(
String.format(
"Member name %s is used more than once: %s:%s and %s:%s",
memberName,
field.getOwner().getName(),
field.getName(),
conflictingField.getOwner().getName(),
conflictingField.getName()),
field);
return;
}
allDslCollectionFieldNodesOfHierarchy.put(memberName, field);
}
}
}
@SuppressWarnings("ConstantConditions")
private GenericsType[] getGenericsTypes(FieldNode fieldNode) {
GenericsType[] types = fieldNode.getType().getGenericsTypes();
if (types == null)
addCompileError("Lists and Maps need to be assigned an explicit Generic Type", fieldNode);
return types;
}
private FieldNode getKeyField(ClassNode target) {
List<FieldNode> annotatedFields = getAnnotatedFieldsOfHierarchy(target, KEY_ANNOTATION);
if (annotatedFields.isEmpty()) return null;
if (annotatedFields.size() > 1) {
addCompileError(
String.format(
"Found more than one key fields, only one is allowed in hierarchy (%s, %s)",
getQualifiedName(annotatedFields.get(0)), getQualifiedName(annotatedFields.get(1))),
annotatedFields.get(0));
return null;
}
FieldNode result = annotatedFields.get(0);
if (!result.getType().equals(ClassHelper.STRING_TYPE)) {
addCompileError(
String.format(
"Key field '%s' must be of type String, but is '%s' instead",
result.getName(), result.getType().getName()),
result);
return null;
}
ClassNode ancestor = ASTHelper.getHighestAncestorDSLObject(target);
if (target.equals(ancestor)) return result;
FieldNode firstKey = getKeyField(ancestor);
if (firstKey == null) {
addCompileError(
String.format(
"Inconsistent hierarchy: Toplevel class %s has no key, but child class %s defines '%s'.",
ancestor.getName(), target.getName(), result.getName()),
result);
return null;
}
return result;
}
private void validateFieldAnnotations() {
for (FieldNode fieldNode : annotatedClass.getFields()) {
if (shouldFieldBeIgnored(fieldNode)) continue;
AnnotationNode annotation = getAnnotation(fieldNode, DSL_FIELD_ANNOTATION);
if (annotation == null) continue;
if (ASTHelper.isListOrMap(fieldNode.getType())) return;
if (annotation.getMember("members") != null) {
addCompileError(
String.format(
"@Field.members is only valid for List or Map fields, but field %s is of type %s",
fieldNode.getName(), fieldNode.getType().getName()),
annotation);
}
}
}
private void preventOwnerOverride() {
MethodBuilder.createPublicMethod(setterName(ownerField))
.param(OBJECT_TYPE, "value")
.statement(
ifS(
andX(
isInstanceOfX(varX("value"), ownerField.getType()),
notX(propX(varX("this"), ownerField.getName()))),
assignX(propX(varX("this"), ownerField.getName()), varX("value"))))
.addTo(annotatedClass);
}
private Statement createGetterBody(FieldNode fNode) {
BlockStatement body = new BlockStatement();
final ClassNode fieldType = fNode.getType();
final Statement statement;
if (fieldType.isArray() || isOrImplements(fieldType, CLONEABLE_TYPE)) {
statement = createGetterBodyArrayOrCloneable(fNode);
} else if (fieldType.isDerivedFrom(DATE_TYPE)) {
statement = createGetterBodyDate(fNode);
} else {
statement = createGetterBodyDefault(fNode);
}
body.addStatement(statement);
return body;
}
private Statement createConstructorStatementArrayOrCloneable(FieldNode fNode) {
final Expression fieldExpr = new VariableExpression(fNode);
Expression initExpr = fNode.getInitialValueExpression();
ClassNode fieldType = fNode.getType();
if (initExpr == null) initExpr = new ConstantExpression(null);
final Expression array = findArg(fNode.getName());
return new IfStatement(
equalsNullExpr(array),
new IfStatement(
equalsNullExpr(initExpr),
assignStatement(fieldExpr, new ConstantExpression(null)),
assignStatement(fieldExpr, cloneArrayOrCloneableExpr(initExpr, fieldType))),
assignStatement(fieldExpr, cloneArrayOrCloneableExpr(array, fieldType)));
}
private void createMapOfSimpleElementsMethods(
FieldNode fieldNode, ClassNode keyType, ClassNode valueType) {
String methodName = fieldNode.getName();
MethodBuilder.createPublicMethod(methodName)
.param(fieldNode.getType(), "values")
.callMethod(propX(varX("this"), fieldNode.getName()), "putAll", varX("values"))
.addTo(annotatedClass);
String singleElementMethod = getElementNameForCollectionField(fieldNode);
MethodBuilder.createPublicMethod(singleElementMethod)
.param(keyType, "key")
.param(valueType, "value")
.callMethod(propX(varX("this"), fieldNode.getName()), "put", args("key", "value"))
.addTo(annotatedClass);
}
private void createListOfSimpleElementsMethods(FieldNode fieldNode, ClassNode elementType) {
MethodBuilder.createPublicMethod(fieldNode.getName())
.arrayParam(elementType, "values")
.statement(callX(propX(varX("this"), fieldNode.getName()), "addAll", varX("values")))
.addTo(annotatedClass);
MethodBuilder.createPublicMethod(fieldNode.getName())
.param(fieldNode.getType(), "values")
.statement(callX(propX(varX("this"), fieldNode.getName()), "addAll", varX("values")))
.addTo(annotatedClass);
MethodBuilder.createPublicMethod(getElementNameForCollectionField(fieldNode))
.param(elementType, "value")
.statement(callX(propX(varX("this"), fieldNode.getName()), "add", varX("value")))
.addTo(annotatedClass);
}
private Statement createGetterBodyArrayOrCloneable(FieldNode fNode) {
final Expression fieldExpr = new VariableExpression(fNode);
final Expression expression = cloneArrayOrCloneableExpr(fieldExpr, fNode.getType());
return safeExpression(fieldExpr, expression);
}
private void createSingleDSLObjectClosureMethod(FieldNode fieldNode) {
String methodName = fieldNode.getName();
ClassNode targetFieldType = fieldNode.getType();
FieldNode targetTypeKeyField = getKeyField(targetFieldType);
String targetOwnerFieldName = getOwnerFieldName(targetFieldType);
if (!ASTHelper.isAbstract(targetFieldType)) {
MethodBuilder.createPublicMethod(methodName)
.returning(targetFieldType)
.namedParams("values")
.optionalStringParam("key", targetTypeKeyField)
.delegatingClosureParam(targetFieldType)
.declareVariable(
"created",
callX(classX(targetFieldType), "newInstance", optionalKeyArg(targetTypeKeyField)))
.callMethod("created", "copyFromTemplate")
.optionalAssignThisToPropertyS("created", targetOwnerFieldName, targetOwnerFieldName)
.assignToProperty(
fieldNode.getName(), callX(varX("created"), "apply", args("values", "closure")))
.callValidationOn("created")
.doReturn("created")
.addTo(annotatedClass);
MethodBuilder.createPublicMethod(methodName)
.returning(targetFieldType)
.optionalStringParam("key", targetTypeKeyField)
.delegatingClosureParam(targetFieldType)
.declareVariable(
"created",
callX(classX(targetFieldType), "newInstance", optionalKeyArg(targetTypeKeyField)))
.callMethod("created", "copyFromTemplate")
.optionalAssignThisToPropertyS("created", targetOwnerFieldName, targetOwnerFieldName)
.assignToProperty(fieldNode.getName(), callX(varX("created"), "apply", varX("closure")))
.callValidationOn("created")
.doReturn("created")
.addTo(annotatedClass);
}
if (!isFinal(targetFieldType)) {
MethodBuilder.createPublicMethod(methodName)
.returning(targetFieldType)
.namedParams("values")
.classParam("typeToCreate", targetFieldType)
.optionalStringParam("key", targetTypeKeyField)
.delegatingClosureParam(targetFieldType)
.declareVariable(
"created",
callX(varX("typeToCreate"), "newInstance", optionalKeyArg(targetTypeKeyField)))
.callMethod("created", "copyFromTemplate")
.optionalAssignThisToPropertyS("created", targetOwnerFieldName, targetOwnerFieldName)
.assignToProperty(
fieldNode.getName(), callX(varX("created"), "apply", args("values", "closure")))
.callValidationOn("created")
.doReturn("created")
.addTo(annotatedClass);
MethodBuilder.createPublicMethod(methodName)
.returning(targetFieldType)
.classParam("typeToCreate", targetFieldType)
.optionalStringParam("key", targetTypeKeyField)
.delegatingClosureParam(targetFieldType)
.declareVariable(
"created",
callX(varX("typeToCreate"), "newInstance", optionalKeyArg(targetTypeKeyField)))
.callMethod("created", "copyFromTemplate")
.optionalAssignThisToPropertyS("created", targetOwnerFieldName, targetOwnerFieldName)
.assignToProperty(fieldNode.getName(), callX(varX("created"), "apply", varX("closure")))
.callValidationOn("created")
.doReturn("created")
.addTo(annotatedClass);
}
}