qtdeclarative/tools/qmltc/main.cpp

320 lines
12 KiB
C++

// 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 "qmltccommandlineutils.h"
#include "qmltcvisitor.h"
#include "qmltctyperesolver.h"
#include "qmltccompiler.h"
#include <private/qqmljscompiler_p.h>
#include <private/qqmljsresourcefilemapper_p.h>
#include <private/qqmljsutils_p.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qurl.h>
#include <QtCore/qhashfunctions.h>
#include <QtCore/qfileinfo.h>
#include <QtCore/qlibraryinfo.h>
#include <QtCore/qcommandlineparser.h>
#include <QtCore/qregularexpression.h>
#include <QtQml/private/qqmljslexer_p.h>
#include <QtQml/private/qqmljsparser_p.h>
#include <QtQml/private/qqmljsengine_p.h>
#include <QtQml/private/qqmljsastvisitor_p.h>
#include <QtQml/private/qqmljsast_p.h>
#include <QtQml/private/qqmljsdiagnosticmessage_p.h>
#include <QtQmlCompiler/qqmlsa.h>
#include <QtQmlCompiler/private/qqmljsliteralbindingcheck_p.h>
#include <cstdlib> // EXIT_SUCCESS, EXIT_FAILURE
using namespace Qt::StringLiterals;
void setupLogger(QQmlJSLogger &logger) // prepare logger to work with compiler
{
for (const QQmlJS::LoggerCategory &category : logger.categories()) {
if (category.id() == qmlUnusedImports)
continue;
logger.setCategoryLevel(category.id(), QtCriticalMsg);
logger.setCategoryIgnored(category.id(), false);
}
}
int main(int argc, char **argv)
{
// Produce reliably the same output for the same input by disabling QHash's
// random seeding.
QHashSeed::setDeterministicGlobalSeed();
QCoreApplication app(argc, argv);
QCoreApplication::setApplicationName(u"qmltc"_s);
QCoreApplication::setApplicationVersion(QStringLiteral(QT_VERSION_STR));
// command-line parsing:
QCommandLineParser parser;
parser.addHelpOption();
parser.addVersionOption();
QCommandLineOption bareOption {
u"bare"_s,
QCoreApplication::translate(
"main", "Do not include default import directories. This may be used to run "
"qmltc on a project using a different Qt version.")
};
parser.addOption(bareOption);
QCommandLineOption importPathOption {
u"I"_s, QCoreApplication::translate("main", "Look for QML modules in specified directory"),
QCoreApplication::translate("main", "import directory")
};
parser.addOption(importPathOption);
QCommandLineOption qmldirOption {
u"i"_s, QCoreApplication::translate("main", "Include extra qmldir files"),
QCoreApplication::translate("main", "qmldir file")
};
parser.addOption(qmldirOption);
QCommandLineOption outputCppOption {
u"impl"_s, QCoreApplication::translate("main", "Generated C++ source file path"),
QCoreApplication::translate("main", "cpp path")
};
parser.addOption(outputCppOption);
QCommandLineOption outputHOption {
u"header"_s, QCoreApplication::translate("main", "Generated C++ header file path"),
QCoreApplication::translate("main", "h path")
};
parser.addOption(outputHOption);
QCommandLineOption resourceOption {
u"resource"_s,
QCoreApplication::translate(
"main", "Qt resource file that might later contain one of the compiled files"),
QCoreApplication::translate("main", "resource file name")
};
parser.addOption(resourceOption);
QCommandLineOption metaResourceOption {
u"meta-resource"_s,
QCoreApplication::translate("main", "Qt meta information file (in .qrc format)"),
QCoreApplication::translate("main", "meta file name")
};
parser.addOption(metaResourceOption);
QCommandLineOption namespaceOption {
u"namespace"_s, QCoreApplication::translate("main", "Namespace of the generated C++ code"),
QCoreApplication::translate("main", "namespace")
};
parser.addOption(namespaceOption);
QCommandLineOption moduleOption{
u"module"_s,
QCoreApplication::translate("main",
"Name of the QML module that this QML code belongs to."),
QCoreApplication::translate("main", "module")
};
parser.addOption(moduleOption);
QCommandLineOption exportOption{ u"export"_s,
QCoreApplication::translate(
"main", "Export macro used in the generated C++ code"),
QCoreApplication::translate("main", "export") };
parser.addOption(exportOption);
QCommandLineOption exportIncludeOption{
u"exportInclude"_s,
QCoreApplication::translate(
"main", "Header defining the export macro to be used in the generated C++ code"),
QCoreApplication::translate("main", "exportInclude")
};
parser.addOption(exportIncludeOption);
parser.process(app);
const QStringList sources = parser.positionalArguments();
if (sources.size() != 1) {
if (sources.isEmpty()) {
parser.showHelp();
} else {
fprintf(stderr, "%s\n",
qPrintable(u"Too many input files specified: '"_s + sources.join(u"' '"_s)
+ u'\''));
}
return EXIT_FAILURE;
}
const QString inputFile = sources.first();
QString url = parseUrlArgument(inputFile);
if (url.isNull())
return EXIT_FAILURE;
if (!url.endsWith(u".qml")) {
fprintf(stderr, "Non-QML file passed as input\n");
return EXIT_FAILURE;
}
static QRegularExpression nameChecker(u"^[a-zA-Z_][a-zA-Z0-9_]*\\.qml$"_s);
if (auto match = nameChecker.match(QUrl(url).fileName()); !match.hasMatch()) {
fprintf(stderr,
"The given QML filename is unsuited for type compilation: the name must consist of "
"letters, digits and underscores, starting with "
"a letter or an underscore and ending in '.qml'!\n");
return EXIT_FAILURE;
}
QString sourceCode = loadUrl(url);
if (sourceCode.isEmpty())
return EXIT_FAILURE;
QString implicitImportDirectory = getImplicitImportDirectory(url);
if (implicitImportDirectory.isEmpty())
return EXIT_FAILURE;
QStringList importPaths;
if (parser.isSet(resourceOption)) {
importPaths.append(QLatin1String(":/qt-project.org/imports"));
importPaths.append(QLatin1String(":/qt/qml"));
};
if (parser.isSet(importPathOption))
importPaths.append(parser.values(importPathOption));
if (!parser.isSet(bareOption))
importPaths.append(QLibraryInfo::path(QLibraryInfo::QmlImportsPath));
QStringList qmldirFiles = QQmlJSUtils::cleanPaths(parser.values(qmldirOption));
QString outputCppFile;
if (!parser.isSet(outputCppOption)) {
outputCppFile = url.first(url.size() - 3) + u"cpp"_s;
} else {
outputCppFile = parser.value(outputCppOption);
}
QString outputHFile;
if (!parser.isSet(outputHOption)) {
outputHFile = url.first(url.size() - 3) + u"h"_s;
} else {
outputHFile = parser.value(outputHOption);
}
if (!parser.isSet(resourceOption)) {
fprintf(stderr, "No resource paths for file: %s\n", qPrintable(inputFile));
return EXIT_FAILURE;
}
// main logic:
QQmlJS::Engine engine;
QQmlJS::Lexer lexer(&engine);
lexer.setCode(sourceCode, /*lineno = */ 1);
QQmlJS::Parser qmlParser(&engine);
if (!qmlParser.parse()) {
const auto diagnosticMessages = qmlParser.diagnosticMessages();
for (const QQmlJS::DiagnosticMessage &m : diagnosticMessages) {
fprintf(stderr, "%s\n",
qPrintable(QStringLiteral("%1:%2:%3: %4")
.arg(inputFile)
.arg(m.loc.startLine)
.arg(m.loc.startColumn)
.arg(m.message)));
}
return EXIT_FAILURE;
}
const QStringList resourceFiles = parser.values(resourceOption);
QQmlJSResourceFileMapper mapper(resourceFiles);
const QStringList metaResourceFiles = parser.values(metaResourceOption);
QQmlJSResourceFileMapper metaDataMapper(metaResourceFiles);
const auto firstQml = [](const QStringList &paths) {
auto it = std::find_if(paths.cbegin(), paths.cend(),
[](const QString &x) { return x.endsWith(u".qml"_s); });
if (it == paths.cend())
return QString();
return *it;
};
// verify that we can map current file to qrc (then use the qrc path later)
const QStringList paths = mapper.resourcePaths(QQmlJSResourceFileMapper::localFileFilter(url));
if (paths.isEmpty()) {
fprintf(stderr, "Failed to find a resource path for file: %s\n", qPrintable(inputFile));
return EXIT_FAILURE;
} else if (paths.size() > 1) {
bool good = !firstQml(paths).isEmpty();
good &= std::any_of(paths.cbegin(), paths.cend(),
[](const QString &x) { return x.endsWith(u".h"_s); });
if (!good || paths.size() > 2) {
fprintf(stderr, "Unexpected resource paths for file: %s\n", qPrintable(inputFile));
return EXIT_FAILURE;
}
}
QmltcCompilerInfo info;
info.outputCppFile = parser.value(outputCppOption);
info.outputHFile = parser.value(outputHOption);
info.resourcePath = firstQml(paths);
info.outputNamespace = parser.value(namespaceOption);
info.exportMacro = parser.value(exportOption);
info.exportInclude = parser.value(exportIncludeOption);
if (info.outputCppFile.isEmpty()) {
fprintf(stderr, "An output C++ file is required. Pass one using --impl");
return EXIT_FAILURE;
}
if (info.outputHFile.isEmpty()) {
fprintf(stderr, "An output C++ header file is required. Pass one using --header");
return EXIT_FAILURE;
}
QQmlJSImporter importer { importPaths, &mapper };
importer.setMetaDataMapper(&metaDataMapper);
auto qmltcVisitor = [](QQmlJS::AST::Node *rootNode, QQmlJSImporter *self,
const QQmlJSImporter::ImportVisitorPrerequisites &p) {
QmltcVisitor v(p.m_target, self, p.m_logger, p.m_implicitImportDirectory, p.m_qmldirFiles);
QQmlJS::AST::Node::accept(rootNode, &v);
};
importer.setImportVisitor(qmltcVisitor);
QQmlJSLogger logger;
logger.setFilePath(url);
logger.setCode(sourceCode);
setupLogger(logger);
auto currentScope = QQmlJSScope::create();
if (parser.isSet(moduleOption))
currentScope->setOwnModuleName(parser.value(moduleOption));
QmltcVisitor visitor(currentScope, &importer, &logger,
QQmlJSImportVisitor::implicitImportDirectory(url, &mapper), qmldirFiles);
visitor.setMode(QmltcVisitor::Compile);
QmltcTypeResolver typeResolver { &importer };
typeResolver.init(&visitor, qmlParser.rootNode());
using PassManagerPtr =
std::unique_ptr<QQmlSA::PassManager,
decltype(&QQmlSA::PassManagerPrivate::deletePassManager)>;
PassManagerPtr passMan(QQmlSA::PassManagerPrivate::createPassManager(&visitor, &typeResolver),
&QQmlSA::PassManagerPrivate::deletePassManager);
passMan->registerPropertyPass(std::make_unique<QQmlJSLiteralBindingCheck>(passMan.get()),
QString(), QString(), QString());
passMan->analyze(QQmlJSScope::createQQmlSAElement(visitor.result()));
if (logger.hasErrors()) {
if (visitor.hasSeenCustomParsers()) {
logger.log(QStringLiteral("qmltc does not support custom parsers such as ListModel or "
"old forms of Connections and PropertyChanges."),
qmlCompiler, QQmlJS::SourceLocation());
}
return EXIT_FAILURE;
}
QList<QQmlJS::DiagnosticMessage> warnings = importer.takeGlobalWarnings();
if (!warnings.isEmpty()) {
logger.log(QStringLiteral("Type warnings occurred while compiling file:"), qmlImport,
QQmlJS::SourceLocation());
logger.processMessages(warnings, qmlImport);
// Log_Import is critical for the compiler
return EXIT_FAILURE;
}
QmltcCompiler compiler(url, &typeResolver, &visitor, &logger);
compiler.compile(info);
if (logger.hasErrors())
return EXIT_FAILURE;
return EXIT_SUCCESS;
}