import com.sun.tools.javac.tree.DCTree.DCAttribute; //导入依赖的package包/类
private int diffAttribute(DCDocComment doc, DCAttribute oldT, DCAttribute newT, int[] elementBounds) {
    return elementBounds[1];
}
 

import com.sun.tools.javac.tree.DCTree.DCAttribute; //导入依赖的package包/类
/**
 * Read a series of HTML attributes, terminated by {@literal > }.
 * Each attribute is of the form {@literal identifier[=value] }.
 * "value" may be unquoted, single-quoted, or double-quoted.
 */
protected List<DCTree> htmlAttrs() {
    ListBuffer<DCTree> attrs = new ListBuffer<DCTree>();
    skipWhitespace();

    loop:
    while (isIdentifierStart(ch)) {
        int namePos = bp;
        Name name = readIdentifier();
        skipWhitespace();
        List<DCTree> value = null;
        ValueKind vkind = ValueKind.EMPTY;
        if (ch == '=') {
            ListBuffer<DCTree> v = new ListBuffer<DCTree>();
            nextChar();
            skipWhitespace();
            if (ch == '\'' || ch == '"') {
                vkind = (ch == '\'') ? ValueKind.SINGLE : ValueKind.DOUBLE;
                char quote = ch;
                nextChar();
                textStart = bp;
                while (bp < buflen && ch != quote) {
                    if (newline && ch == '@') {
                        attrs.add(erroneous("dc.unterminated.string", namePos));
                        // No point trying to read more.
                        // In fact, all attrs get discarded by the caller
                        // and superseded by a malformed.html node because
                        // the html tag itself is not terminated correctly.
                        break loop;
                    }
                    attrValueChar(v);
                }
                addPendingText(v, bp - 1);
                nextChar();
            } else {
                vkind = ValueKind.UNQUOTED;
                textStart = bp;
                while (bp < buflen && !isUnquotedAttrValueTerminator(ch)) {
                    attrValueChar(v);
                }
                addPendingText(v, bp - 1);
            }
            skipWhitespace();
            value = v.toList();
        }
        DCAttribute attr = m.at(namePos).Attribute(name, vkind, value);
        attrs.add(attr);
    }

    return attrs.toList();
}
 

import com.sun.tools.javac.tree.DCTree.DCAttribute; //导入依赖的package包/类
/**
 * Read a series of HTML attributes, terminated by {@literal > }.
 * Each attribute is of the form {@literal identifier[=value] }.
 * "value" may be unquoted, single-quoted, or double-quoted.
 */
protected List<DCTree> htmlAttrs() {
    ListBuffer<DCTree> attrs = new ListBuffer<>();
    skipWhitespace();

    loop:
    while (isIdentifierStart(ch)) {
        int namePos = bp;
        Name name = readAttributeName();
        skipWhitespace();
        List<DCTree> value = null;
        ValueKind vkind = ValueKind.EMPTY;
        if (ch == '=') {
            ListBuffer<DCTree> v = new ListBuffer<>();
            nextChar();
            skipWhitespace();
            if (ch == '\'' || ch == '"') {
                vkind = (ch == '\'') ? ValueKind.SINGLE : ValueKind.DOUBLE;
                char quote = ch;
                nextChar();
                textStart = bp;
                while (bp < buflen && ch != quote) {
                    if (newline && ch == '@') {
                        attrs.add(erroneous("dc.unterminated.string", namePos));
                        // No point trying to read more.
                        // In fact, all attrs get discarded by the caller
                        // and superseded by a malformed.html node because
                        // the html tag itself is not terminated correctly.
                        break loop;
                    }
                    attrValueChar(v);
                }
                addPendingText(v, bp - 1);
                nextChar();
            } else {
                vkind = ValueKind.UNQUOTED;
                textStart = bp;
                while (bp < buflen && !isUnquotedAttrValueTerminator(ch)) {
                    attrValueChar(v);
                }
                addPendingText(v, bp - 1);
            }
            skipWhitespace();
            value = v.toList();
        }
        DCAttribute attr = m.at(namePos).newAttributeTree(name, vkind, value);
        attrs.add(attr);
    }

    return attrs.toList();
}
 

import com.sun.tools.javac.tree.DCTree.DCAttribute; //导入依赖的package包/类
@Override @DefinedBy(Api.COMPILER_TREE)
public DCAttribute newAttributeTree(javax.lang.model.element.Name name, ValueKind vkind, java.util.List<? extends DocTree> value) {
    DCAttribute tree = new DCAttribute(name, vkind, cast(value));
    tree.pos = pos;
    return tree;
}