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/*
 * Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
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 */

package jdk.javadoc.internal.doclets.formats.html;

import java.util.List;

import javax.lang.model.element.Element;
import javax.lang.model.element.ElementKind;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.VariableElement;
import javax.lang.model.type.DeclaredType;
import javax.lang.model.type.ExecutableType;
import javax.lang.model.type.TypeMirror;
import javax.lang.model.util.SimpleTypeVisitor14;

import jdk.javadoc.internal.doclets.formats.html.markup.ContentBuilder;
import jdk.javadoc.internal.doclets.formats.html.markup.Entity;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlStyle;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTree;
import jdk.javadoc.internal.doclets.formats.html.markup.TagName;
import jdk.javadoc.internal.doclets.formats.html.markup.Text;
import jdk.javadoc.internal.doclets.toolkit.Content;

import static jdk.javadoc.internal.doclets.formats.html.HtmlLinkInfo.Kind.EXECUTABLE_MEMBER_PARAM;
import static jdk.javadoc.internal.doclets.formats.html.HtmlLinkInfo.Kind.MEMBER;
import static jdk.javadoc.internal.doclets.formats.html.HtmlLinkInfo.Kind.MEMBER_DEPRECATED_PREVIEW;
import static jdk.javadoc.internal.doclets.formats.html.HtmlLinkInfo.Kind.MEMBER_TYPE_PARAMS;
import static jdk.javadoc.internal.doclets.formats.html.HtmlLinkInfo.Kind.RECEIVER_TYPE;
import static jdk.javadoc.internal.doclets.formats.html.HtmlLinkInfo.Kind.THROWS_TYPE;

/**
 * Print method and constructor info.
 */
public abstract class AbstractExecutableMemberWriter extends AbstractMemberWriter {

    public AbstractExecutableMemberWriter(SubWriterHolderWriter writer, TypeElement typeElement) {
        super(writer, typeElement);
    }

    public AbstractExecutableMemberWriter(SubWriterHolderWriter writer) {
        super(writer);
    }


    /**
     * Get the type parameters for the executable member.
     *
     * @param member the member for which to get the type parameters.
     * @return the type parameters.
     */
    protected Content getTypeParameters(ExecutableElement member) {
        HtmlLinkInfo linkInfo = new HtmlLinkInfo(configuration, MEMBER_TYPE_PARAMS, member);
        return writer.getTypeParameterLinks(linkInfo);
    }

    @Override
    protected Content getSummaryLink(Element member) {
        Content content = new ContentBuilder();
        content.add(utils.getFullyQualifiedName(member));
        if (!utils.isConstructor(member)) {
            content.add(".");
            content.add(member.getSimpleName());
        }
        String signature = utils.flatSignature((ExecutableElement) member, typeElement);
        if (signature.length() > 2) {
            content.add(new HtmlTree(TagName.WBR));
        }
        content.add(signature);

        return writer.getDocLink(MEMBER_DEPRECATED_PREVIEW, utils.getEnclosingTypeElement(member),
                member, content, null, false);
    }

    @Override
    protected void addSummaryLink(HtmlLinkInfo.Kind context, TypeElement te, Element member,
                                  Content target) {
        ExecutableElement ee = (ExecutableElement)member;
        Content memberLink = writer.getDocLink(context, te, ee, name(ee), HtmlStyle.memberNameLink);
        var code = HtmlTree.CODE(memberLink);
        addParameters(ee, code);
        target.add(code);
    }

    @Override
    protected void addInheritedSummaryLink(TypeElement te, Element member, Content target) {
        target.add(writer.getDocLink(MEMBER, te, member, name(member)));
    }

    /**
     * Add the parameter for the executable member.
     *
     * @param param the parameter that needs to be added.
     * @param paramType the type of the parameter.
     * @param isVarArg true if this is a link to var arg.
     * @param target the content to which the parameter information will be added.
     */
    protected void addParam(VariableElement param, TypeMirror paramType, boolean isVarArg,
                            Content target) {
        Content link = writer.getLink(new HtmlLinkInfo(configuration, EXECUTABLE_MEMBER_PARAM,
                paramType).varargs(isVarArg));
        target.add(link);
        if(name(param).length() > 0) {
            target.add(Entity.NO_BREAK_SPACE);
            target.add(name(param));
        }
    }

    /**
     * Add the receiver information.
     *
     * 

Note: receivers can only have type-use annotations.

* * @param member the member to write receiver annotations for. * @param rcvrType the receiver type. * @param target the content to which the information will be added. */ protected void addReceiver(ExecutableElement member, TypeMirror rcvrType, Content target) { var info = new HtmlLinkInfo(configuration, RECEIVER_TYPE, rcvrType); info.linkToSelf = false; target.add(writer.getLink(info)); target.add(Entity.NO_BREAK_SPACE); if (member.getKind() == ElementKind.CONSTRUCTOR) { target.add(utils.getTypeName(rcvrType, false)); target.add("."); } target.add("this"); } /** * Returns {@code true} if a receiver type is annotated anywhere in its type for * inclusion in member details. * * @param receiverType the receiver type. * @return {@code true} if the receiver is annotated */ protected boolean isAnnotatedReceiver(TypeMirror receiverType) { return new SimpleTypeVisitor14() { @Override protected Boolean defaultAction(TypeMirror e, Void unused) { return utils.isAnnotated(e); } @Override public Boolean visitDeclared(DeclaredType t, Void unused) { if (super.visitDeclared(t, unused) || visit(t.getEnclosingType())) { return true; } for (var e : t.getTypeArguments()) { if (visit(e)) { return true; } } return false; } }.visit(receiverType); } /** * Add all the parameters for the executable member. * * @param member the member to write parameters for. * @param target the content to which the parameters information will be added. */ protected void addParameters(ExecutableElement member, Content target) { Content params = getParameters(member, false); if (params.charCount() > 2) { // only add for non-empty parameters target.add(new HtmlTree(TagName.WBR)); } target.add(params); } /** * Add all the parameters for the executable member. * * @param member the member to write parameters for. * @param includeAnnotations true if annotation information needs to be added. * @return the parameter information */ protected Content getParameters(ExecutableElement member, boolean includeAnnotations) { Content result = new ContentBuilder(); result.add("("); String sep = ""; List parameters = member.getParameters(); TypeMirror rcvrType = member.getReceiverType(); if (includeAnnotations && rcvrType != null && isAnnotatedReceiver(rcvrType)) { addReceiver(member, rcvrType, result); sep = "," + Text.NL + " "; } int paramstart; ExecutableType instMeth = utils.asInstantiatedMethodType(typeElement, member); for (paramstart = 0; paramstart < parameters.size(); paramstart++) { result.add(sep); VariableElement param = parameters.get(paramstart); TypeMirror paramType = instMeth.getParameterTypes().get(paramstart); if (param.getKind() != ElementKind.INSTANCE_INIT) { if (includeAnnotations) { Content annotationInfo = writer.getAnnotationInfo(param, false); if (!annotationInfo.isEmpty()) { result.add(annotationInfo) .add(Text.NL) .add(" "); } } addParam(param, paramType, (paramstart == parameters.size() - 1) && member.isVarArgs(), result); break; } } for (int i = paramstart + 1; i < parameters.size(); i++) { result.add(","); result.add(Text.NL); result.add(" "); if (includeAnnotations) { Content annotationInfo = writer.getAnnotationInfo(parameters.get(i), false); if (!annotationInfo.isEmpty()) { result.add(annotationInfo) .add(Text.NL) .add(" "); } } addParam(parameters.get(i), instMeth.getParameterTypes().get(i), (i == parameters.size() - 1) && member.isVarArgs(), result); } result.add(")"); return result; } /** * Get the exception information for the executable member. * * @param member the member to get the exception information for * @return the exception information */ protected Content getExceptions(ExecutableElement member) { List exceptions = utils.asInstantiatedMethodType(typeElement, member).getThrownTypes(); Content result = new ContentBuilder(); for (TypeMirror t : exceptions) { if (!result.isEmpty()) { result.add(","); result.add(Text.NL); } Content link = writer.getLink(new HtmlLinkInfo(configuration, THROWS_TYPE, t)); result.add(link); } return result; } protected TypeElement implementsMethodInIntfac(ExecutableElement method, List intfacs) { for (TypeElement intf : intfacs) { List methods = utils.getMethods(intf); if (!methods.isEmpty()) { for (ExecutableElement md : methods) { if (name(md).equals(name(method)) && md.toString().equals(method.toString())) { return intf; } } } } return null; } }




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