refactored SciTECO runtime errors: moved from parser.cpp to error.cpp

 * the GError expection has been renamed to GlibError, to avoid
   nameclashes when working from the SciTECO namespace

1 files changed, 168 insertions, 0 deletions

diff --git a/src/error.h b/src/error.h
new file mode 100644
index 0000000..2786929
--- /dev/null
+++ b/src/error.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2012-2014 Robin Haberkorn
+ *
+ * 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __ERROR_H
+#define __ERROR_H
+
+#include <exception>
+#include <typeinfo>
+
+#include <glib.h>
+#include <glib/gprintf.h>
+
+#include "sciteco.h"
+
+namespace SciTECO {
+
+/* thrown as exception, executed at cmdline macro level */
+class ReplaceCmdline {
+public:
+	gchar *new_cmdline;
+	gint pos;
+
+	ReplaceCmdline();
+};
+
+class Error {
+	gchar *description;
+	GSList *frames;
+
+public:
+	gint pos;
+	gint line, column;
+
+	class Frame {
+	public:
+		gint pos;
+		gint line, column;
+
+		virtual Frame *copy() const = 0;
+		virtual ~Frame() {}
+
+		virtual void display(gint nr) = 0;
+	};
+
+	class QRegFrame : public Frame {
+		gchar *name;
+
+	public:
+		QRegFrame(const gchar *_name)
+			 : name(g_strdup(_name)) {}
+
+		Frame *copy() const;
+
+		~QRegFrame()
+		{
+			g_free(name);
+		}
+
+		void display(gint nr);
+	};
+
+	class FileFrame : public Frame {
+		gchar *name;
+
+	public:
+		FileFrame(const gchar *_name)
+			 : name(g_strdup(_name)) {}
+
+		Frame *copy() const;
+
+		~FileFrame()
+		{
+			g_free(name);
+		}
+
+		void display(gint nr);
+	};
+
+	class ToplevelFrame : public Frame {
+	public:
+		Frame *copy() const;
+
+		void display(gint nr);
+	};
+
+	Error(const gchar *fmt, ...) G_GNUC_PRINTF(2, 3);
+	Error(const Error &inst);
+	~Error();
+
+	void add_frame(Frame *frame);
+
+	void display_short(void);
+	void display_full(void);
+};
+
+class StdError : public Error {
+public:
+	StdError(const gchar *type, const std::exception &error)
+		: Error("%s: %s", type, error.what()) {}
+	StdError(const std::exception &error)
+		: Error("%s: %s", typeid(error).name(), error.what()) {}
+};
+
+class GlibError : public Error {
+public:
+	GlibError(const GError *gerror)
+	         : Error("%s", gerror->message) {}
+};
+
+class SyntaxError : public Error {
+public:
+	SyntaxError(gchar chr)
+		   : Error("Syntax error \"%c\" (%d)", chr, chr) {}
+};
+
+class ArgExpectedError : public Error {
+public:
+	ArgExpectedError(const gchar *cmd)
+		        : Error("Argument expected for <%s>", cmd) {}
+	ArgExpectedError(gchar cmd)
+		        : Error("Argument expected for <%c>", cmd) {}
+};
+
+class MoveError : public Error {
+public:
+	MoveError(const gchar *cmd)
+		 : Error("Attempt to move pointer off page with <%s>",
+			 cmd) {}
+	MoveError(gchar cmd)
+		 : Error("Attempt to move pointer off page with <%c>",
+			 cmd) {}
+};
+
+class RangeError : public Error {
+public:
+	RangeError(const gchar *cmd)
+		  : Error("Invalid range specified for <%s>", cmd) {}
+	RangeError(gchar cmd)
+		  : Error("Invalid range specified for <%c>", cmd) {}
+};
+
+class InvalidQRegError : public Error {
+public:
+	InvalidQRegError(const gchar *name, bool local = false)
+			: Error("Invalid Q-Register \"%s%s\"",
+				local ? "." : "", name) {}
+	InvalidQRegError(gchar name, bool local = false)
+			: Error("Invalid Q-Register \"%s%c\"",
+				local ? "." : "", name) {}
+};
+
+} /* namespace SciTECO */
+
+#endif