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// Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "nimcompletionassistprovider.h"
#include "suggest/nimsuggestcache.h"
#include "suggest/nimsuggest.h"
#include <projectexplorer/session.h>
#include <texteditor/codeassist/assistinterface.h>
#include <texteditor/codeassist/assistproposalitem.h>
#include <texteditor/codeassist/genericproposal.h>
#include <texteditor/codeassist/iassistprocessor.h>
#include <utils/qtcassert.h>
#include <utils/utilsicons.h>
#include <utils/textutils.h>
#include <utils/algorithm.h>
#include <QApplication>
#include <QDebug>
#include <QSet>
#include <QTemporaryFile>
#include <QTextStream>
#include <QTextDocument>
using namespace ProjectExplorer;
using namespace TextEditor;
namespace Nim {
bool isIdentifierChar(QChar c)
{
return c.isLetterOrNumber() || c == QLatin1Char('_');
}
bool isActivationChar(QChar c)
{
static const QSet<QChar> chars {QLatin1Char('.'), QLatin1Char('(')};
return chars.contains(c);
}
class NimCompletionAssistProcessor : public QObject, public TextEditor::IAssistProcessor
{
Q_OBJECT
public:
TextEditor::IAssistProposal *perform(const TextEditor::AssistInterface *interface) final
{
QTC_ASSERT(this->thread() == qApp->thread(), return nullptr);
if (interface->reason() == IdleEditor && !acceptsIdleEditor(interface))
return nullptr;
Suggest::NimSuggest *suggest = nimSuggestInstance(interface);
QTC_ASSERT(suggest, return nullptr);
if (suggest->executablePath().isEmpty() || suggest->projectFile().isEmpty())
return nullptr;
if (!suggest->isReady()) {
m_interface = interface;
QObject::connect(suggest, &Suggest::NimSuggest::readyChanged, this,
[this, suggest](bool ready) { onNimSuggestReady(suggest, ready); });
} else {
doPerform(interface, suggest);
}
m_running = true;
return nullptr;
}
bool running() final
{
return m_running;
}
private:
void onNimSuggestReady(Suggest::NimSuggest *suggest, bool ready)
{
QTC_ASSERT(m_interface, return);
if (!ready) {
m_running = false;
setAsyncProposalAvailable(nullptr);
} else {
doPerform(m_interface, suggest);
}
}
void doPerform(const TextEditor::AssistInterface *interface,
Suggest::NimSuggest *suggest)
{
int pos = findCompletionPos(interface);
std::unique_ptr<QTemporaryFile> dirtyFile = writeDirtyFile(interface);
QTC_ASSERT(dirtyFile, return);
std::shared_ptr<Suggest::NimSuggestClientRequest> request = sendRequest(interface,
suggest,
dirtyFile->fileName(),
pos);
QTC_ASSERT(request, return);
connect(request.get(), &Suggest::NimSuggestClientRequest::finished, this,
&NimCompletionAssistProcessor::onRequestFinished);
m_pos = pos;
m_dirtyFile = std::move(dirtyFile);
m_request = std::move(request);
}
void onRequestFinished()
{
auto items = Utils::transform<QList>(m_request->lines(), &createProposal);
setAsyncProposalAvailable(new GenericProposal(m_pos, items));
m_running = false;
m_dirtyFile.reset();
m_request.reset();
}
static bool acceptsIdleEditor(const AssistInterface *interface)
{
int pos = interface->position();
QChar c = interface->textDocument()->characterAt(pos - 1);
return isIdentifierChar(c) || isActivationChar(c);
}
static int findCompletionPos(const AssistInterface *interface)
{
int pos = interface->position();
while (isIdentifierChar(interface->textDocument()->characterAt(pos - 1)))
pos--;
return pos;
}
static Suggest::NimSuggest *nimSuggestInstance(const AssistInterface *interface)
{
return Nim::Suggest::NimSuggestCache::instance().get(interface->filePath());
}
static std::shared_ptr<Suggest::NimSuggestClientRequest> sendRequest(const AssistInterface *interface,
Suggest::NimSuggest *suggest,
QString dirtyFile,
int pos)
{
int line = 0, column = 0;
Utils::Text::convertPosition(interface->textDocument(), pos, &line, &column);
QTC_ASSERT(column >= 1, return nullptr);
return suggest->sug(interface->filePath().toString(), line, column - 1, dirtyFile);
}
static std::unique_ptr<QTemporaryFile> writeDirtyFile(const TextEditor::AssistInterface *interface)
{
auto result = std::make_unique<QTemporaryFile>("qtcnim.XXXXXX.nim");
QTC_ASSERT(result->open(), return nullptr);
QTextStream stream(result.get());
stream << interface->textDocument()->toPlainText();
result->close();
return result;
}
static AssistProposalItemInterface *createProposal(const Nim::Suggest::Line &line)
{
auto item = new AssistProposalItem();
item->setIcon(Utils::CodeModelIcon::iconForType(symbolIcon(line.symbol_kind)));
item->setText(line.data.back());
item->setDetail(line.symbol_type);
item->setOrder(symbolOrder(line.symbol_kind));
return item;
}
static int symbolOrder(Suggest::Line::SymbolKind kind)
{
switch (kind) {
case Suggest::Line::SymbolKind::skField:
return 2;
case Suggest::Line::SymbolKind::skVar:
case Suggest::Line::SymbolKind::skLet:
case Suggest::Line::SymbolKind::skEnumField:
case Suggest::Line::SymbolKind::skResult:
case Suggest::Line::SymbolKind::skForVar:
case Suggest::Line::SymbolKind::skParam:
case Suggest::Line::SymbolKind::skLabel:
case Suggest::Line::SymbolKind::skGenericParam:
return 1;
default:
return 0;
}
}
static Utils::CodeModelIcon::Type symbolIcon(Suggest::Line::SymbolKind kind)
{
switch (kind) {
case Suggest::Line::SymbolKind::skField:
return Utils::CodeModelIcon::Property;
case Suggest::Line::SymbolKind::skVar:
case Suggest::Line::SymbolKind::skLet:
case Suggest::Line::SymbolKind::skEnumField:
case Suggest::Line::SymbolKind::skResult:
case Suggest::Line::SymbolKind::skForVar:
case Suggest::Line::SymbolKind::skParam:
case Suggest::Line::SymbolKind::skLabel:
case Suggest::Line::SymbolKind::skGenericParam:
return Utils::CodeModelIcon::VarPublic;
case Suggest::Line::SymbolKind::skProc:
case Suggest::Line::SymbolKind::skFunc:
case Suggest::Line::SymbolKind::skMethod:
case Suggest::Line::SymbolKind::skIterator:
case Suggest::Line::SymbolKind::skConverter:
return Utils::CodeModelIcon::FuncPublic;
case Suggest::Line::SymbolKind::skType:
return Utils::CodeModelIcon::Struct;
case Suggest::Line::SymbolKind::skMacro:
case Suggest::Line::SymbolKind::skTemplate:
return Utils::CodeModelIcon::Macro;
case Suggest::Line::SymbolKind::skModule:
case Suggest::Line::SymbolKind::skPackage:
return Utils::CodeModelIcon::Namespace;
case Suggest::Line::SymbolKind::skUnknown:
case Suggest::Line::SymbolKind::skConditional:
case Suggest::Line::SymbolKind::skDynLib:
case Suggest::Line::SymbolKind::skTemp:
case Suggest::Line::SymbolKind::skConst:
case Suggest::Line::SymbolKind::skStub:
case Suggest::Line::SymbolKind::skAlias:
default:
return Utils::CodeModelIcon::Type::Unknown;
}
}
bool m_running = false;
int m_pos = -1;
std::weak_ptr<Suggest::NimSuggest> m_suggest;
std::shared_ptr<Suggest::NimSuggestClientRequest> m_request;
std::unique_ptr<QTemporaryFile> m_dirtyFile;
const TextEditor::AssistInterface *m_interface = nullptr;
};
IAssistProcessor *NimCompletionAssistProvider::createProcessor(const AssistInterface *) const
{
return new NimCompletionAssistProcessor();
}
int NimCompletionAssistProvider::activationCharSequenceLength() const
{
return 1;
}
bool NimCompletionAssistProvider::isActivationCharSequence(const QString &sequence) const
{
return !sequence.isEmpty() && isActivationChar(sequence.at(0));
}
IAssistProvider::RunType NimCompletionAssistProvider::runType() const
{
return RunType::Asynchronous;
}
}
#include "nimcompletionassistprovider.moc"
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