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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "qqmljslintercodegen_p.h"
#include <QtQmlCompiler/private/qqmljsimportvisitor_p.h>
#include <QtQmlCompiler/private/qqmljsshadowcheck_p.h>
#include <QtQmlCompiler/private/qqmljsstoragegeneralizer_p.h>
#include <QtQmlCompiler/private/qqmljsstorageinitializer_p.h>
#include <QtQmlCompiler/private/qqmljstypepropagator_p.h>
#include <QtQmlCompiler/private/qqmljsfunctioninitializer_p.h>
#include <QFileInfo>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
QQmlJSLinterCodegen::QQmlJSLinterCodegen(QQmlJSImporter *importer, const QString &fileName,
const QStringList &qmldirFiles, QQmlJSLogger *logger)
: QQmlJSAotCompiler(importer, fileName, qmldirFiles, logger)
{
}
void QQmlJSLinterCodegen::setDocument(const QmlIR::JSCodeGen *codegen,
const QmlIR::Document *document)
{
Q_UNUSED(codegen);
m_document = document;
m_unitGenerator = &document->jsGenerator;
}
std::variant<QQmlJSAotFunction, QList<QQmlJS::DiagnosticMessage>>
QQmlJSLinterCodegen::compileBinding(const QV4::Compiler::Context *context,
const QmlIR::Binding &irBinding, QQmlJS::AST::Node *astNode)
{
QQmlJSFunctionInitializer initializer(
&m_typeResolver, m_currentObject->location, m_currentScope->location);
QList<QQmlJS::DiagnosticMessage> initializationErrors;
const QString name = m_document->stringAt(irBinding.propertyNameIndex);
QQmlJSCompilePass::Function function =
initializer.run(context, name, astNode, irBinding, &initializationErrors);
for (const auto &error : initializationErrors) {
diagnose(u"Could not determine signature of binding for %1: %2"_s.arg(name, error.message),
error.type, error.loc);
}
QList<QQmlJS::DiagnosticMessage> analyzeErrors;
if (!analyzeFunction(context, &function, &analyzeErrors)) {
// If it's a signal and the function just returns a closure, it's harmless.
// Otherwise promote the message to warning level.
for (auto &error : analyzeErrors) {
error = diagnose(u"Could not compile binding for %1: %2"_s.arg(name, error.message),
(function.isSignalHandler && error.type == QtDebugMsg)
? QtDebugMsg
: QtWarningMsg,
error.loc);
}
return analyzeErrors;
}
return QQmlJSAotFunction {};
}
std::variant<QQmlJSAotFunction, QList<QQmlJS::DiagnosticMessage>>
QQmlJSLinterCodegen::compileFunction(const QV4::Compiler::Context *context,
const QString &name, QQmlJS::AST::Node *astNode)
{
QList<QQmlJS::DiagnosticMessage> initializationErrors;
QQmlJSFunctionInitializer initializer(
&m_typeResolver, m_currentObject->location, m_currentScope->location);
QQmlJSCompilePass::Function function =
initializer.run(context, name, astNode, &initializationErrors);
for (const auto &error : initializationErrors) {
diagnose(u"Could not determine signature of function %1: %2"_s.arg(name, error.message),
error.type, error.loc);
}
QList<QQmlJS::DiagnosticMessage> analyzeErrors;
if (!analyzeFunction(context, &function, &analyzeErrors)) {
for (auto &error : analyzeErrors) {
error = diagnose(u"Could not compile function %1: %2"_s.arg(name, error.message),
QtWarningMsg, error.loc);
}
return analyzeErrors;
}
return QQmlJSAotFunction {};
}
void QQmlJSLinterCodegen::setPassManager(QQmlSA::PassManager *passManager)
{
m_passManager = passManager;
auto managerPriv = QQmlSA::PassManagerPrivate::get(passManager);
managerPriv->m_typeResolver = typeResolver();
}
bool QQmlJSLinterCodegen::analyzeFunction(const QV4::Compiler::Context *context,
QQmlJSCompilePass::Function *function,
QList<QQmlJS::DiagnosticMessage> *errors)
{
QQmlJSTypePropagator propagator(m_unitGenerator, &m_typeResolver, m_logger, errors, {}, {},
m_passManager);
auto [basicBlocks, annotations] = propagator.run(function);
if (errors->isEmpty()) {
QQmlJSShadowCheck shadowCheck(m_unitGenerator, &m_typeResolver, m_logger, errors,
basicBlocks, annotations);
shadowCheck.run(function);
}
if (errors->isEmpty()) {
QQmlJSStorageInitializer initializer(m_unitGenerator, &m_typeResolver, m_logger, errors,
basicBlocks, annotations);
initializer.run(function);
}
if (errors->isEmpty()) {
QQmlJSStorageGeneralizer generalizer(m_unitGenerator, &m_typeResolver, m_logger, errors,
basicBlocks, annotations);
generalizer.run(function);
}
if (!errors->isEmpty()) {
QtMsgType type = context->returnsClosure ? QtDebugMsg : QtWarningMsg;
for (auto &error : *errors)
error.type = type;
return false;
}
return true;
}
QT_END_NAMESPACE
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