1 files changed, 271 insertions, 0 deletions
diff --git a/languages/cpp/debugger/gdbcommand.h b/languages/cpp/debugger/gdbcommand.h
new file mode 100644
index 00000000..8c928394
--- /dev/null
+++ b/languages/cpp/debugger/gdbcommand.h
@@ -0,0 +1,271 @@
+/***************************************************************************
+    begin                : Sun Aug 8 1999
+    copyright            : (C) 1999 by John Birch
+    email                : jbb@kdevelop.org
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef _GDBCOMMAND_H_
+#define _GDBCOMMAND_H_
+
+#include <qobject.h>
+#include <qstring.h>
+#include <qvaluevector.h>
+
+#include "mi/gdbmi.h"
+#include <qguardedptr.h>
+
+namespace GDBDebugger
+{
+
+
+class Breakpoint;
+class VarItem;
+class ValueCallback;
+
+/**
+ * @author John Birch
+ */
+
+class GDBCommand
+{
+public:
+    GDBCommand(const QString& command);
+
+    template<class Handler>
+    GDBCommand(const QString& command,
+               Handler* handler_this, 
+               void (Handler::* handler_method)(const GDBMI::ResultRecord&),
+               bool handlesError = false);
+
+    /* The command that should be sent to gdb.  
+       This method is virtual so the command can compute this
+       dynamically, possibly using results of the previous
+       commands.
+       If the empty string is returned, nothing is sent. */
+    virtual QString cmdToSend();
+
+    /* Returns the initial string that was specified in
+       ctor invocation. The actual command will be
+       determined by cmdToSend above and the return
+       value of this method is only used in various
+       diagnostic messages emitted before actually
+       sending the command. */
+    QString initialString() const;
+
+    /* Returns true if this is command entered by the user
+       and so should be always shown in the gdb output window. */
+    virtual bool isUserCommand() const;
+
+    // If there's a handler for this command, invokes it and returns true.
+    // Otherwise, returns false.
+    virtual bool invokeHandler(const GDBMI::ResultRecord& r);
+
+    // Returns 'true' if 'invokeHandler' should be invoked even
+    // on MI errors.
+    bool handlesError() const;
+
+    virtual ~GDBCommand();
+
+    // Called by gdbcontroller for each new output string 
+    // gdb emits for this command. In MI mode, this includes
+    // all "stream" messages, but does not include MI responses.
+    void newOutput(const QString&);
+
+    const QValueVector<QString>& allStreamOutput() const;
+
+    // True if this command run then target for
+    // unspecified period of time -- that is either 'run' or
+    // 'continue'. 
+    bool isRun() const;
+
+    void setRun(bool run);
+
+private:
+    QString command_;
+    QGuardedPtr<QObject> handler_this;
+    typedef void (QObject::* handler_t)(const GDBMI::ResultRecord&);
+    handler_t handler_method;
+    QValueVector<QString> lines;
+    bool run;
+
+protected: // FIXME: should be private, after I kill the first ctor
+    // that is obsolete and no longer necessary.
+    bool handlesError_;
+
+};
+
+class UserCommand : public GDBCommand
+{
+public:
+    UserCommand(const QString& s);
+
+    bool isUserCommand() const;
+};
+
+/** This command is used to change some property of breakpoint.
+    It holds a pointer to a Breakpoint object and will substitute
+    breakpoint id into the command string.
+
+    So, the command can be issued before the breakpoint id is know. That
+    is, it's possible to queue add + modify pair. The add command will
+    set breakpoint id and modify command will use it.
+*/
+class ModifyBreakpointCommand : public GDBCommand
+{
+public:
+    /** The 'comamnd' should include a single format specifier "%1" that
+        will be replaced with the id of breakpoint.
+    */
+    ModifyBreakpointCommand(const QString& command, const Breakpoint* bp);
+
+public: // DbgCommand overrides
+    virtual QString cmdToSend();
+
+private:
+    const Breakpoint* bp_;    
+};
+
+/** This is a class for raw CLI commands. Instead of invoking
+    user provided hook with MI response, it invokes the a hook
+    with lists of strings.
+*/
+class CliCommand : public GDBCommand
+{
+public:
+    template<class Handler>
+    CliCommand(const QString& command,
+               Handler* handler_this, 
+               void (Handler::* handler_method)(const QValueVector<QString>&),
+               bool handlesError = false);
+
+
+
+public: // GDBCommand overrides
+    bool invokeHandler(const GDBMI::ResultRecord& r);
+
+private:
+		QGuardedPtr<QObject> cli_handler_this;
+    typedef void (QObject::* cli_handler_t)(const QValueVector<QString>&);
+    cli_handler_t cli_handler_method;
+};
+
+/** Command that does nothing and can be just used to invoke
+    a user provided handler when all preceeding commands are
+    executed.
+*/
+class SentinelCommand : public GDBCommand
+{
+public:
+    typedef void (QObject::*handler_method_t)();
+
+    template<class Handler>
+    SentinelCommand(Handler* handler_this,
+                    void (Handler::* handler_method)())
+    : GDBCommand(""),
+      handler_this(handler_this),
+      handler_method(static_cast<handler_method_t>(handler_method))
+    {}
+
+    void invokeHandler()
+    {
+        (handler_this->*handler_method)();
+    }
+
+    QString cmdToSend()             
+    {
+        return "";
+    }
+
+private:
+		QGuardedPtr<QObject> handler_this;
+    handler_method_t handler_method;
+
+};
+
+/* Command for which we don't want any reply.  */
+class ResultlessCommand : public QObject, public GDBCommand
+{
+public:
+    ResultlessCommand(const QString& command, bool handlesError = false)
+    : GDBCommand(command, this, &ResultlessCommand::handle, handlesError)
+    {}
+
+private:
+    void handle(const GDBMI::ResultRecord&)
+    {}
+};
+
+class ExpressionValueCommand : public QObject, public GDBCommand
+{
+public:
+    typedef void (QObject::*handler_method_t)(const QString&);
+
+    template<class Handler>
+    ExpressionValueCommand(
+        const QString& expression,
+        Handler* handler_this,
+        void (Handler::* handler_method)(const QString&))
+    : GDBCommand(("-data-evaluate-expression " + expression).ascii(), this,
+                 &ExpressionValueCommand::handleResponse),
+      handler_this(handler_this),
+      handler_method(static_cast<handler_method_t>(handler_method))
+    {}
+
+    void handleResponse(const GDBMI::ResultRecord& r)
+    {
+        (handler_this->*handler_method)(r["value"].literal());
+    }
+
+private:
+		QGuardedPtr<QObject> handler_this;
+    handler_method_t handler_method;
+};
+
+
+
+template<class Handler>
+GDBCommand::GDBCommand(
+    const QString& command,
+    Handler* handler_this,
+    void (Handler::* handler_method)(const GDBMI::ResultRecord&),
+    bool handlesError)
+: command_(command),
+  handler_this(handler_this), 
+  handler_method(static_cast<handler_t>(handler_method)),
+  run(false),
+  handlesError_(handlesError)
+{
+}
+
+template<class Handler>
+CliCommand::CliCommand(
+    const QString& command,
+    Handler* handler_this,
+    void (Handler::* handler_method)(const QValueVector<QString>&),
+    bool handlesError)
+: GDBCommand(command.latin1()),
+  cli_handler_this(handler_this), 
+  cli_handler_method(static_cast<cli_handler_t>(handler_method))
+{
+    handlesError_ = handlesError;
+}
+
+
+
+
+}
+
+
+
+
+
+#endif