From 1575e6836d73ec32b9fbfd4517f6740e0f8235e5 Mon Sep 17 00:00:00 2001
From: Roberto Raggi <roberto.raggi@nokia.com>
Date: Wed, 13 May 2009 15:29:45 +0200
Subject: [PATCH] Show how to use the preprocessor to generate deps.
---
tests/manual/preprocessor/main.cpp | 91 ++++++++++++++++++++++++++----
1 file changed, 81 insertions(+), 10 deletions(-)
diff --git a/tests/manual/preprocessor/main.cpp b/tests/manual/preprocessor/main.cpp
index e38f0aecf7a..b8395334f58 100644
--- a/tests/manual/preprocessor/main.cpp
+++ b/tests/manual/preprocessor/main.cpp
@@ -3,25 +3,96 @@
#include <PreprocessorClient.h>
#include <pp.h>
+#include <QCoreApplication>
#include <QFile>
+#include <QStringList>
+#include <QDir>
+#include <QtDebug>
+
#include <iostream>
using namespace CPlusPlus;
-int main()
+class MakeDepend: public Client
{
- Client *client = 0;
- Environment env;
- Preprocessor preprocess(client, &env);
+ Environment *env;
+ QList<QDir> systemDirs;
+
+public:
+ MakeDepend(Environment *env)
+ : env(env)
+ { }
+
+ void addSystemDir(const QDir &dir)
+ { systemDirs.append(dir); }
+
+ void addSystemDir(const QString &path)
+ { systemDirs.append(QDir(path)); }
+
+ virtual void macroAdded(const Macro &)
+ { }
+
+ virtual void sourceNeeded(QString &fileName, IncludeType mode, unsigned)
+ {
+ if (mode == IncludeLocal) {
+ // ### cache
+ const QFileInfo currentFile(QFile::decodeName(env->currentFile));
+ const QDir dir = currentFile.dir();
+
+ QFileInfo fileInfo(dir, fileName);
+ if (fileInfo.exists()) {
+ fileName = fileInfo.absoluteFilePath();
+ std::cout << ' ' << qPrintable(fileName);
+ return;
+ }
+ }
- QFile in;
- if (! in.open(stdin, QFile::ReadOnly))
- return 0;
+ foreach (const QDir &dir, systemDirs) {
+ QFileInfo fileInfo(dir, fileName);
+ if (fileInfo.exists() && fileInfo.isFile()) {
+ fileName = fileInfo.absoluteFilePath();
+ std::cout << ' ' << qPrintable(fileName);
+ return;
+ }
+ }
+
+ std::cerr << "file '" << qPrintable(fileName) << "' not found" << std::endl;
+ }
+
+ virtual void startExpandingMacro(unsigned, const Macro &,
+ const QByteArray &,
+ const QVector<MacroArgumentReference> &)
+ { }
+
+ virtual void stopExpandingMacro(unsigned, const Macro &)
+ { }
+
+ virtual void startSkippingBlocks(unsigned)
+ { }
+
+ virtual void stopSkippingBlocks(unsigned)
+ { }
+};
+
+int main(int argc, char *argv[])
+{
+ Environment env;
+ MakeDepend client(&env);
- const QByteArray source = in.readAll();
- const QByteArray preprocessedCode = preprocess("<stdin>", source);
+ client.addSystemDir(QLatin1String("/usr/include"));
+ Preprocessor preproc(&client, &env);
- std::cout << preprocessedCode.constData();
+ for (int i = 1; i < argc; ++i) {
+ const QByteArray fileName = argv[i];
+ std::cout << fileName.constData() << ':';
+ QFile file(QFile::decodeName(fileName));
+ if (file.open(QFile::ReadOnly)) {
+ // ### we should QTextStream here.
+ const QByteArray code = file.readAll();
+ preproc.preprocess(fileName, code, /*result = */ 0);
+ }
+ std::cout << std::endl;
+ }
return 0;
}
--
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