diff options
Diffstat (limited to 'error.cpp')
| -rw-r--r-- | error.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/error.cpp b/error.cpp new file mode 100644 index 0000000..40032b0 --- /dev/null +++ b/error.cpp @@ -0,0 +1,194 @@ +// error.cpp +// Revision 7-feb-2005 + +#include "error.h" +#include "sysvar.h" +#include "util.h" + +#include <sstream> +#include <algorithm> + +namespace sysvar= blassic::sysvar; + + +namespace { + +struct errcode { + const BlErrNo err; + const char * const str; + errcode (BlErrNo nerr, const char * nstr) : + err (nerr), + str (nstr) + { } +}; + +// Can't declare const or Borland can't expand find_if. Why? +errcode table []= { + errcode (ErrNoError, "No error"), + errcode (ErrSyntax, "Syntax horror"), + errcode (ErrMismatch, "Type mismatch"), + errcode (ErrGosubWithoutReturn, "GOSUB without RETURN"), + errcode (ErrReturnWithoutGosub, "RETURN without GOSUB"), + errcode (ErrNextWithoutFor, "NEXT without FOR"), + errcode (ErrNotImplemented, "Not implemented"), + errcode (ErrDivZero, "Division by zero"), + errcode (ErrDataExhausted, "Data exhausted"), + errcode (ErrInvalidCommand, "Invalid command"), + errcode (ErrPolite, "Programmer is too polite"), + errcode (ErrBadSubscript, "Bad Subscript"), + errcode (ErrOutMemory, "Out of memory"), + errcode (ErrAlreadyDim, "Array already dimensioned"), + errcode (ErrNoContinue, "Cannot CONTinue"), + errcode (ErrFileNumber, "Bad file number"), + errcode (ErrFileMode, "Bad file mode"), + errcode (ErrFileAlreadyOpen, "File already open"), + errcode (ErrFileRead, "Error reading file"), + errcode (ErrFileWrite, "Error writing file"), + errcode (ErrUntilWithoutRepeat, "UNTIL without REPEAT"), + errcode (ErrWendWithoutWhile, "WEND without WHILE"), + errcode (ErrWhileWithoutWend, "WHILE without WEND"), + errcode (ErrBlassicInternal, "Internal Blassic error"), + errcode (ErrNoDynamicLibrary, "Dynamic library not found"), + errcode (ErrNoDynamicSymbol, "Symbol not found in dynamic library"), + errcode (ErrCannotResume, "Cannot RESUME"), + errcode (ErrNoLabel, "Label does not exist"), + errcode (ErrMisplacedLocal, "LOCAL out of subroutine"), + errcode (ErrFieldOverflow, "FIELD overflow"), + errcode (ErrFileNotFound, "File not found"), + errcode (ErrLineExhausted, "Line numbers exhausted"), + errcode (ErrFunctionNoDefined, "User function undefined"), + errcode (ErrIncompleteDef, "User function incomplete"), + errcode (ErrInvalidDirect, "Invalid direct command"), + errcode (ErrBadRecord, "Bad record number"), + errcode (ErrFunctionCall, "Illegal function call"), + errcode (ErrSocket, "Socket error"), + errcode (ErrRenameFile, "Rename file error"), + errcode (ErrOperatingSystem, "Operating system error"), + errcode (ErrPastEof, "Input past EOF"), + errcode (ErrNoGraphics, "Graphics mode required"), + errcode (ErrImproperArgument, "Improper argument"), + errcode (ErrDomain, "Domain error"), + errcode (ErrRange, "Result out of range"), + errcode (ErrLineNotExist, "Line does not exist"), + errcode (ErrFnRecursion, "FN recursion too deep"), + errcode (ErrOverflow, "Overflow"), + errcode (ErrRegexp, "Bad regular expression"), + errcode (ErrDynamicUnsupported, "Dymanic link not supported"), + errcode (ErrRepeatWithoutUntil, "REPEAT without UNTIL"), + errcode (ErrUnexpectedFnEnd, "FN END outside DEF FN"), + errcode (ErrNoFnEnd, "FN without FN END"), + errcode (ErrDuplicateLabel, "Duplicate LABEL"), + errcode (ErrNoTeDejo, "That won't work"), +}; + +errcode * table_end= table + util::dim_array (table); + +class is_err { +public: + is_err (BlErrNo err) : err (err) + { } + bool operator () (const errcode & ec) const + { return ec.err == err; } +private: + BlErrNo err; +}; + +} // namespace + +//*********************************************** +// class BlError +//*********************************************** + +BlError::BlError () : + err (ErrNoError) +{ } + +BlError::BlError (BlErrNo nerr) : + err (nerr) +{ } + +BlError::BlError (BlErrNo nerr, ProgramPos npos) : + err (nerr), + pos (npos) +{ } + +void BlError::clear () +{ + err= ErrNoError; + pos= ProgramPos (); +} + +void BlError::set (BlErrNo nerr, ProgramPos npos) +{ + err= nerr; + pos= npos; +} + +void BlError::seterr (BlErrNo nerr) +{ + err= nerr; +} + +BlErrNo BlError::geterr () const +{ + return err; +} + +ProgramPos BlError::getpos () const +{ + return pos; +} + +std::ostream & operator << (std::ostream & os, const BlError & bl) +{ + os << ErrStr (bl.err); + const BlLineNumber line= bl.getpos ().getnum (); + if (line != LineDirectCommand) + os << " in " << line; + //os << '\n'; + return os; +} + +//*********************************************** +// class BlBreakInPos +//*********************************************** + +BlBreakInPos::BlBreakInPos (ProgramPos pos) : + pos (pos) +{ } + +ProgramPos BlBreakInPos::getpos () const +{ + return pos; +} + +std::ostream & operator << (std::ostream & os, const BlBreakInPos & bbip) +{ + os << "**BREAK**"; + BlLineNumber line= bbip.getpos ().getnum (); + if (line != LineDirectCommand) + os << " in " << line; + return os; +} + +//*********************************************** +// Other functions +//*********************************************** + +std::string ErrStr (BlErrNo err) +{ + const errcode * perr= std::find_if (table, table_end, is_err (err) ); + if (perr != table_end) + return perr->str; + std::ostringstream strbuf; + strbuf << "Error " << err; + return strbuf.str (); +} + +bool showdebuginfo () +{ + //return sysvar::getFlags1 () & sysvar::ShowDebugInfo; + return sysvar::hasFlags1 (sysvar::ShowDebugInfo); +} + +// Fin de error.cpp |