private static void createConstructor()

in src/main/java/org/codehaus/groovy/transform/TupleConstructorASTTransformation.java [176:321]


    private static void createConstructor(final AbstractASTTransformation xform, final AnnotationNode anno, final ClassNode cNode, final boolean includeFields,
                                          final boolean includeProperties, final boolean includeSuperFields, final boolean includeSuperProperties,
                                          final List<String> excludes, final List<String> includes, final boolean allNames, final boolean allProperties,
                                          final SourceUnit sourceUnit, final PropertyHandler handler, final ClosureExpression pre, final ClosureExpression post) {
        boolean namedVariant = xform.memberHasValue(anno, "namedVariant", Boolean.TRUE);
        boolean callSuper = xform.memberHasValue(anno, "callSuper", Boolean.TRUE);
        DefaultsMode defaultsMode = maybeDefaultsMode(anno, "defaultsMode");
        if (defaultsMode == null) {
            boolean defaults = anno.getMember("defaults") == null
                    || !xform.memberHasValue(anno, "defaults", Boolean.FALSE);
            defaultsMode = defaults ? ON : OFF;
        }
        boolean force = xform.memberHasValue(anno, "force", Boolean.TRUE);
        boolean makeImmutable = makeImmutable(cNode);

        // no processing if explicit constructor(s) found, unless forced or ImmutableBase is in play
        if (!force && !makeImmutable && hasExplicitConstructor(null, cNode)) return;

        boolean includePseudoGetters = false, includePseudoSetters = allProperties, skipReadOnly = true;
        Set<String> names = new HashSet<>();
        List<PropertyNode> superList;
        if (includeSuperProperties || includeSuperFields) {
            superList = getAllProperties(names, cNode.getSuperClass(), includeSuperProperties, includeSuperFields, includePseudoGetters, includePseudoSetters, /*super*/true, skipReadOnly);
        } else {
            superList = new ArrayList<>();
        }
        List<PropertyNode> list = getAllProperties(names, cNode, includeProperties, includeFields, includePseudoGetters, includePseudoSetters, /*super*/false, skipReadOnly);

        List<Parameter> params = new ArrayList<>();
        List<Expression> superParams = new ArrayList<>();
        BlockStatement preBody = new BlockStatement();
        boolean superInPre = false;
        if (pre != null) {
            superInPre = copyStatementsWithSuperAdjustment(pre, preBody);
            if (superInPre && callSuper) {
                xform.addError("Error during " + MY_TYPE_NAME + " processing, can't have a super call in 'pre' " +
                        "closure and also 'callSuper' enabled", cNode);
            }
        }

        BlockStatement body = new BlockStatement();

        if (!handler.validateProperties(xform, body, cNode, plus(list, superList))) {
            return;
        }

        boolean specialNamedArgCase = (superList.isEmpty() && ImmutableASTTransformation.isSpecialNamedArgCase(list, defaultsMode == OFF))
                || (list.isEmpty() && ImmutableASTTransformation.isSpecialNamedArgCase(superList, defaultsMode == OFF));

        for (PropertyNode pNode : superList) {
            String name = pNode.getName();
            FieldNode fNode = pNode.getField();
            if (!shouldSkipUndefinedAware(name, excludes, includes, allNames)) {
                params.add(createParam(fNode, name, defaultsMode, xform, makeImmutable));
                if (callSuper) {
                    superParams.add(varX(name));
                } else if (!superInPre && !specialNamedArgCase) {
                    Statement propInit = handler.createPropInit(xform, anno, cNode, pNode, null);
                    if (propInit != null) {
                        body.addStatement(propInit);
                    }
                }
            }
        }
        if (callSuper) {
            body.addStatement(stmt(ctorX(ClassNode.SUPER, args(superParams))));
        }
        if (!preBody.isEmpty()) {
            body.addStatements(preBody.getStatements());
        }
        for (PropertyNode pNode : list) {
            String name = pNode.getName();
            if (shouldSkipUndefinedAware(name, excludes, includes, allNames)) continue;
            Statement propInit = handler.createPropInit(xform, anno, cNode, pNode, null);
            if (propInit != null) {
                body.addStatement(propInit);
            }
            FieldNode fNode = pNode.getField();
            Parameter param = createParam(fNode, name, defaultsMode, xform, makeImmutable);
            if (cNode.getNodeMetaData("_RECORD_HEADER") != null) {
                param.addAnnotations(pNode.getAnnotations());
                param.putNodeMetaData("_SKIPPABLE_ANNOTATIONS", Boolean.TRUE);
                fNode.putNodeMetaData("_SKIPPABLE_ANNOTATIONS", Boolean.TRUE);
            }
            params.add(param);
        }
        if (post != null) {
            body.addStatement(post.getCode());
        }

        if (includes != null) {
            params.sort(Comparator.comparingInt(p -> includes.indexOf(p.getName())));
        }

        int modifiers = getVisibility(anno, cNode, ConstructorNode.class, ACC_PUBLIC);
        Parameter[] signature = params.toArray(Parameter.EMPTY_ARRAY);
        if (cNode.getDeclaredConstructor(signature) != null) {
            if (sourceUnit != null) {
                String warning = String.format(
                    "%s specifies duplicate constructor: %s(%s)",
                    xform.getAnnotationName(), cNode.getNameWithoutPackage(),
                    params.stream().map(Parameter::getType).map(ClassNodeUtils::formatTypeName).collect(joining(",")));
                sourceUnit.addWarning(warning, anno.getLineNumber() > 0 ? anno : cNode);
            }
        } else {
            // add main tuple constructor; if any parameters have default values, then Verifier will generate the variants
            ConstructorNode tupleCtor = addGeneratedConstructor(cNode, modifiers, signature, ClassNode.EMPTY_ARRAY, body);
            if (cNode.getNodeMetaData("_RECORD_HEADER") != null) {
                tupleCtor.addAnnotations(cNode.getAnnotations());
                tupleCtor.putNodeMetaData("_SKIPPABLE_ANNOTATIONS", Boolean.TRUE);
            }
            if (namedVariant) {
                BlockStatement inner = new BlockStatement();
                Parameter mapParam = param(ClassHelper.MAP_TYPE.getPlainNodeReference(), NAMED_ARGS);
                List<Parameter> genParams = new ArrayList<>();
                genParams.add(mapParam);
                ArgumentListExpression args = new ArgumentListExpression();
                List<String> propNames = new ArrayList<>();
                Map<Parameter, Expression> seen = new HashMap<>();
                for (Parameter p : params) {
                    if (!processImplicitNamedParam(xform, tupleCtor, mapParam, inner, args, propNames, p, false, seen)) return;
                }
                NamedVariantASTTransformation.createMapVariant(xform, tupleCtor, anno, mapParam, genParams, cNode, inner, args, propNames);
            }

            if (sourceUnit != null && !body.isEmpty()) {
                new VariableScopeVisitor(sourceUnit).visitClass(cNode);
            }

            if (body.isEmpty()) { // GROOVY-8868: retain empty constructor
                body.addStatement(stmt(ConstantExpression.EMPTY_EXPRESSION));
            }
        }
        // If the first param is def or a Map, named args might not work as expected so we add a hard-coded map constructor in this case
        // we don't do it for LinkedHashMap for now (would lead to duplicate signature)
        // or if there is only one Map property (for backwards compatibility)
        // or if there is already a @MapConstructor annotation
        if (!params.isEmpty() && defaultsMode != OFF && specialNamedArgCase
                && !AnnotatedNodeUtils.hasAnnotation(cNode, MapConstructorASTTransformation.MY_TYPE)) {
            ClassNode firstParamType = params.get(0).getType();
            if (params.size() > 1 || ClassHelper.isObjectType(firstParamType)) {
                String message = "The class " + cNode.getName() + " was incorrectly initialized via the map constructor with null.";
                addSpecialMapConstructors(modifiers, cNode, message, false);
            }
        }
    }