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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "codesnip.h"
#include "qtcompat.h"
#include "exception.h"
#include "typedatabase.h"
#include <QtCore/qdebug.h>
using namespace Qt::StringLiterals;
QString TemplateInstance::expandCode() const
{
const auto templateEntry = TypeDatabase::instance()->findTemplate(m_name);
if (!templateEntry) {
const QString m = u"<insert-template> referring to non-existing template '"_s
+ m_name + u"'."_s;
throw Exception(m);
}
QString code = templateEntry->code();
for (auto it = replaceRules.cbegin(), end = replaceRules.cend(); it != end; ++it)
code.replace(it.key(), it.value());
while (!code.isEmpty() && code.at(code.size() - 1).isSpace())
code.chop(1);
QString result = u"// TEMPLATE - "_s + m_name + u" - START"_s;
if (!code.startsWith(u'\n'))
result += u'\n';
result += code;
result += u"\n// TEMPLATE - "_s + m_name + u" - END\n"_s;
return result;
}
bool comparesEqual(const TemplateInstance &lhs, const TemplateInstance &rhs) noexcept
{
return lhs.m_name == rhs.m_name && lhs.replaceRules == rhs.replaceRules;
}
// ---------------------- CodeSnipFragment
static QString fragmentToCodeHelper(const QString &c)
{
return c;
}
static QString fragmentToCodeHelper(const TemplateInstance &p)
{
return p.expandCode();
}
static QString fragmentToCode(const CodeSnipFragment &codeFrag)
{
return std::visit([](auto f) { return fragmentToCodeHelper(f); }, codeFrag);
}
static bool isEmptyFragmentHelper(const QString &c)
{
return c.isEmpty();
}
static bool isEmptyFragmentHelper(const TemplateInstance &)
{
return false;
}
static bool isEmptyFragment(const CodeSnipFragment &codeFrag)
{
return std::visit([](auto f) { return isEmptyFragmentHelper(f); }, codeFrag);
}
static size_t hashHelper(const QString &c, size_t seed) noexcept
{
return qHash(c, seed);
}
static size_t hashHelper(const TemplateInstance &t, size_t seed) noexcept
{
return qHash(t, seed);
}
size_t qHash(const CodeSnipFragment &codeFrag, size_t seed) noexcept
{
return std::visit([seed](auto f) { return hashHelper(f, seed); }, codeFrag);
}
static void formatDebugHelper(QDebug &d, const QString &code)
{
const auto lines = QStringView{code}.split(u'\n');
for (qsizetype i = 0, size = lines.size(); i < size; ++i) {
if (i)
d << "\\n";
d << lines.at(i).trimmed();
}
}
static void formatDebugHelper(QDebug &d, const TemplateInstance &t)
{
d << "template=\"" << t.name() << '"';
}
QDebug operator<<(QDebug d, const CodeSnipFragment &codeFrag)
{
QDebugStateSaver saver(d);
d.noquote();
d.nospace();
std::visit([&d](auto f) { formatDebugHelper(d, f); }, codeFrag);
return d;
}
// ---------------------- CodeSnipAbstract
void CodeSnipAbstract::addCode(const QString &code)
{
m_codeList.emplace_back(CodeSnipFragment(fixSpaces(code)));
}
QString CodeSnipAbstract::code() const
{
QString res;
for (const auto &codeFrag : m_codeList)
res.append(fragmentToCode(codeFrag));
return res;
}
void CodeSnipAbstract::purgeEmptyFragments()
{
auto end = std::remove_if(m_codeList.begin(), m_codeList.end(), isEmptyFragment);
m_codeList.erase(end, m_codeList.end());
}
QRegularExpression CodeSnipAbstract::placeHolderRegex(int index)
{
return QRegularExpression(u'%' + QString::number(index) + "\\b"_L1);
}
bool comparesEqual(const CodeSnip &lhs, const CodeSnip &rhs) noexcept
{
return lhs.language == rhs.language && lhs.position == rhs.position
&& lhs.codeList() == rhs.codeList();
}
void purgeEmptyCodeSnips(QList<CodeSnip> *list)
{
for (auto it = list->begin(); it != list->end(); ) {
it->purgeEmptyFragments();
if (it->isEmpty())
it = list->erase(it);
else
++it;
}
}
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