Files
qt-creator/src/plugins/cpptools/doxygengenerator.cpp
Nikolai Kosjar 12f4b1ee86 CppTools: Modernize
Change-Id: I78af9cd4ccddfa4ed744dce96b772ae5644c89d2
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
2019-02-08 08:43:32 +00:00

329 lines
11 KiB
C++

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "doxygengenerator.h"
#include <cplusplus/CppDocument.h>
#include <cplusplus/SimpleLexer.h>
#include <utils/textutils.h>
#include <utils/fileutils.h>
#include <utils/qtcassert.h>
#include <QDebug>
#include <QTextBlock>
#include <QTextCursor>
#include <QTextDocument>
#include <limits>
using namespace CppTools;
using namespace CPlusPlus;
DoxygenGenerator::DoxygenGenerator() = default;
void DoxygenGenerator::setStyle(DocumentationStyle style)
{
m_style = style;
}
void DoxygenGenerator::setStartComment(bool start)
{
m_startComment = start;
}
void DoxygenGenerator::setGenerateBrief(bool get)
{
m_generateBrief = get;
}
void DoxygenGenerator::setAddLeadingAsterisks(bool add)
{
m_addLeadingAsterisks = add;
}
static int lineBeforeCursor(const QTextCursor &cursor)
{
int line, column;
const bool converted = Utils::Text::convertPosition(cursor.document(), cursor.position(), &line,
&column);
QTC_ASSERT(converted, return std::numeric_limits<int>::max());
return line - 1;
}
QString DoxygenGenerator::generate(QTextCursor cursor,
const CPlusPlus::Snapshot &snapshot,
const Utils::FileName &documentFilePath)
{
const QTextCursor initialCursor = cursor;
const QChar &c = cursor.document()->characterAt(cursor.position());
if (!c.isLetter() && c != QLatin1Char('_'))
return QString();
// Try to find what would be the declaration we are interested in.
SimpleLexer lexer;
QTextBlock block = cursor.block();
while (block.isValid()) {
const QString &text = block.text();
const Tokens &tks = lexer(text);
foreach (const Token &tk, tks) {
if (tk.is(T_SEMICOLON) || tk.is(T_LBRACE)) {
// No need to continue beyond this, we might already have something meaningful.
cursor.setPosition(block.position() + tk.utf16charsEnd(), QTextCursor::KeepAnchor);
break;
}
}
if (cursor.hasSelection())
break;
block = block.next();
}
if (!cursor.hasSelection())
return QString();
QString declCandidate = cursor.selectedText();
declCandidate.replace(QChar::ParagraphSeparator, QLatin1Char('\n'));
// Let's append a closing brace in the case we got content like 'class MyType {'
if (declCandidate.endsWith(QLatin1Char('{')))
declCandidate.append(QLatin1Char('}'));
Document::Ptr doc = snapshot.preprocessedDocument(declCandidate.toUtf8(),
documentFilePath,
lineBeforeCursor(initialCursor));
doc->parse(Document::ParseDeclaration);
doc->check(Document::FastCheck);
if (!doc->translationUnit()
|| !doc->translationUnit()->ast()
|| !doc->translationUnit()->ast()->asDeclaration()) {
return QString();
}
return generate(cursor, doc->translationUnit()->ast()->asDeclaration());
}
QString DoxygenGenerator::generate(QTextCursor cursor, DeclarationAST *decl)
{
SpecifierAST *spec = nullptr;
DeclaratorAST *decltr = nullptr;
if (SimpleDeclarationAST *simpleDecl = decl->asSimpleDeclaration()) {
if (simpleDecl->declarator_list
&& simpleDecl->declarator_list->value) {
decltr = simpleDecl->declarator_list->value;
} else if (simpleDecl->decl_specifier_list
&& simpleDecl->decl_specifier_list->value) {
spec = simpleDecl->decl_specifier_list->value;
}
} else if (FunctionDefinitionAST * defDecl = decl->asFunctionDefinition()) {
decltr = defDecl->declarator;
}
assignCommentOffset(cursor);
QString comment;
if (m_startComment)
writeStart(&comment);
writeNewLine(&comment);
writeContinuation(&comment);
if (decltr
&& decltr->core_declarator
&& decltr->core_declarator->asDeclaratorId()
&& decltr->core_declarator->asDeclaratorId()->name) {
CoreDeclaratorAST *coreDecl = decltr->core_declarator;
if (m_generateBrief)
writeBrief(&comment, m_printer.prettyName(coreDecl->asDeclaratorId()->name->name));
else
writeNewLine(&comment);
if (decltr->postfix_declarator_list
&& decltr->postfix_declarator_list->value
&& decltr->postfix_declarator_list->value->asFunctionDeclarator()) {
FunctionDeclaratorAST *funcDecltr =
decltr->postfix_declarator_list->value->asFunctionDeclarator();
if (funcDecltr->parameter_declaration_clause
&& funcDecltr->parameter_declaration_clause->parameter_declaration_list) {
for (ParameterDeclarationListAST *it =
funcDecltr->parameter_declaration_clause->parameter_declaration_list;
it;
it = it->next) {
ParameterDeclarationAST *paramDecl = it->value;
if (paramDecl->declarator
&& paramDecl->declarator->core_declarator
&& paramDecl->declarator->core_declarator->asDeclaratorId()
&& paramDecl->declarator->core_declarator->asDeclaratorId()->name) {
DeclaratorIdAST *paramId =
paramDecl->declarator->core_declarator->asDeclaratorId();
writeContinuation(&comment);
writeCommand(&comment,
ParamCommand,
m_printer.prettyName(paramId->name->name));
}
}
}
if (funcDecltr->symbol
&& funcDecltr->symbol->returnType().type()
&& !funcDecltr->symbol->returnType()->isVoidType()
&& !funcDecltr->symbol->returnType()->isUndefinedType()) {
writeContinuation(&comment);
writeCommand(&comment, ReturnCommand);
}
}
} else if (spec && m_generateBrief) {
bool briefWritten = false;
if (ClassSpecifierAST *classSpec = spec->asClassSpecifier()) {
if (classSpec->name) {
QString aggregate;
if (classSpec->symbol->isClass())
aggregate = QLatin1String("class");
else if (classSpec->symbol->isStruct())
aggregate = QLatin1String("struct");
else
aggregate = QLatin1String("union");
writeBrief(&comment,
m_printer.prettyName(classSpec->name->name),
QLatin1String("The"),
aggregate);
briefWritten = true;
}
} else if (EnumSpecifierAST *enumSpec = spec->asEnumSpecifier()) {
if (enumSpec->name) {
writeBrief(&comment,
m_printer.prettyName(enumSpec->name->name),
QLatin1String("The"),
QLatin1String("enum"));
briefWritten = true;
}
}
if (!briefWritten)
writeNewLine(&comment);
} else {
writeNewLine(&comment);
}
writeEnd(&comment);
return comment;
}
QChar DoxygenGenerator::startMark() const
{
if (m_style == QtStyle)
return QLatin1Char('!');
return QLatin1Char('*');
}
QChar DoxygenGenerator::styleMark() const
{
if (m_style == QtStyle || m_style == CppStyleA || m_style == CppStyleB)
return QLatin1Char('\\');
return QLatin1Char('@');
}
QString DoxygenGenerator::commandSpelling(Command command)
{
if (command == ParamCommand)
return QLatin1String("param ");
if (command == ReturnCommand)
return QLatin1String("return ");
QTC_ASSERT(command == BriefCommand, return QString());
return QLatin1String("brief ");
}
void DoxygenGenerator::writeStart(QString *comment) const
{
if (m_style == CppStyleA)
comment->append(QLatin1String("///"));
if (m_style == CppStyleB)
comment->append(QLatin1String("//!"));
else
comment->append(offsetString() + "/*" + startMark());
}
void DoxygenGenerator::writeEnd(QString *comment) const
{
if (m_style == CppStyleA)
comment->append(QLatin1String("///"));
else if (m_style == CppStyleB)
comment->append(QLatin1String("//!"));
else
comment->append(offsetString() + " */");
}
void DoxygenGenerator::writeContinuation(QString *comment) const
{
if (m_style == CppStyleA)
comment->append(offsetString() + "///");
else if (m_style == CppStyleB)
comment->append(offsetString() + "//!");
else if (m_addLeadingAsterisks)
comment->append(offsetString() + " *");
else
comment->append(offsetString() + " ");
}
void DoxygenGenerator::writeNewLine(QString *comment) const
{
comment->append(QLatin1Char('\n'));
}
void DoxygenGenerator::writeCommand(QString *comment,
Command command,
const QString &commandContent) const
{
comment->append(' ' + styleMark() + commandSpelling(command) + commandContent + '\n');
}
void DoxygenGenerator::writeBrief(QString *comment,
const QString &brief,
const QString &prefix,
const QString &suffix)
{
QString content = prefix + ' ' + brief + ' ' + suffix;
writeCommand(comment, BriefCommand, content.trimmed());
}
void DoxygenGenerator::assignCommentOffset(QTextCursor cursor)
{
if (cursor.hasSelection()) {
if (cursor.anchor() < cursor.position())
cursor.setPosition(cursor.anchor());
}
cursor.movePosition(QTextCursor::StartOfBlock, QTextCursor::KeepAnchor);
m_commentOffset = cursor.selectedText();
}
QString DoxygenGenerator::offsetString() const
{
return m_commentOffset;
}