/************************************************************************* * * * YAP Prolog %W% %G% * * Yap Prolog was developed at NCCUP - Universidade do Porto * * * * Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 * * * ************************************************************************** * * * File: YapError.h * * mods: * * comments: error header file for YAP * * version: $Id: Yap.h,v 1.38 2008-06-18 10:02:27 vsc Exp $ * *************************************************************************/ #ifndef YAP_ERROR_H #define YAP_ERROR_H 1 #define ECLASS(CL, A, B) CL, #define E0(A, B) A, #define E(A, B, C) A, #define E2(A, B, C, D) A, #define BEGIN_ERRORS() typedef enum { #define END_ERRORS() \ } \ yap_error_number #define BEGIN_ERROR_CLASSES() typedef enum { #define END_ERROR_CLASSES() \ } \ yap_error_class_number #include "YapErrors.h" #define MAX_ERROR_MSG_SIZE 10 struct yami *Yap_Error__(const char *file, const char *function, int lineno, yap_error_number err, YAP_Term wheret, ...); void Yap_ThrowError__(const char *file, const char *function, int lineno, yap_error_number err, YAP_Term wheret, ...) #ifndef MSC_VER __attribute__ ((noreturn)) #endif ; #define Yap_NilError(id, ...) \ Yap_Error__(__FILE__, __FUNCTION__, __LINE__, id, TermNil, __VA_ARGS__) #define Yap_Error(id, inp, ...) \ Yap_Error__(__FILE__, __FUNCTION__, __LINE__, id, inp, __VA_ARGS__) #define Yap_ThrowError(id, inp, ...) \ Yap_ThrowError__(__FILE__, __FUNCTION__, __LINE__, id, inp, __VA_ARGS__) #ifdef YAP_TERM_H /** * make sure next argument is a bound instance of type * atom. */ #define Yap_ensure_atom(T0, TF) \ { if ( (TF = Yap_ensure_atom__(__FILE__, __FUNCTION__, __LINE__, T0 ) == 0L ) return false; \ } INLINE_ONLY extern inline Term Yap_ensure_atom__(const char *fu, const char *fi, int line, Term in) { Term t = Deref(in); // Term Context = Deref(ARG2); if (!IsVarTerm(t) && IsAtomTerm(t)) return t; if (IsVarTerm(t)) { Yap_Error__(fu, fi, line, INSTANTIATION_ERROR, t, NULL); } else { if (IsAtomTerm(t)) return t; Yap_Error__(fu, fi, line, TYPE_ERROR_ATOM, t, NULL); return 0L; } #endif #define JMP_LOCAL_ERROR(v, LAB) \ if (H + 2 * (v) > ASP - 1024) { \ LOCAL_Error_TYPE = RESOURCE_ERROR_STACK; \ LOCAL_Error_Size = 2 * (v) * sizeof(CELL); \ goto LAB; \ } #define LOCAL_ERROR(t, v) \ if (HR + (v) > ASP - 1024) { \ LOCAL_Error_TYPE = RESOURCE_ERROR_STACK; \ LOCAL_Error_Size = 2 * (v) * sizeof(CELL); \ return NULL; \ } #define LOCAL_TERM_ERROR(t, v) \ if (HR + (v) > ASP - 1024) { \ LOCAL_Error_TYPE = RESOURCE_ERROR_STACK; \ LOCAL_Error_Size = 2 * (v) * sizeof(CELL); \ return 0L; \ } #define AUX_ERROR(t, n, s, TYPE) \ if (s + (n + 1) > (TYPE *)AuxSp) { \ LOCAL_Error_TYPE = RESOURCE_ERROR_AUXILIARY_STACK; \ LOCAL_Error_Size = n * sizeof(TYPE); \ return NULL; \ } #define AUX_TERM_ERROR(t, n, s, TYPE) \ if (s + (n + 1) > (TYPE *)AuxSp) { \ LOCAL_Error_TYPE = RESOURCE_ERROR_AUXILIARY_STACK; \ LOCAL_Error_Size = n * sizeof(TYPE); \ return 0L; \ } #define JMP_AUX_ERROR(n, s, t, TYPE, LAB) \ if (s + (n + 1) > (TYPE *)AuxSp) { \ LOCAL_Error_TYPE = RESOURCE_ERROR_AUXILIARY_STACK; \ LOCAL_Error_Size = n * sizeof(TYPE); \ goto LAB; \ } #define HEAP_ERROR(a, TYPE) \ if (a == NIL) { \ LOCAL_Error_TYPE = RESOURCE_ERROR_HEAP; \ LOCAL_Error_Size = n * sizeof(TYPE); \ return NULL; \ } #define HEAP_TERM_ERROR(a, TYPE, n) \ if (a == NIL) { \ LOCAL_Error_TYPE = RESOURCE_ERROR_HEAP; \ LOCAL_Error_Size = n * sizeof(TYPE); \ return 0L; \ } #define JMP_HEAP_ERROR(a, n, t, TYPE, LAB) \ if (a == NIL) { \ LOCAL_Error_TYPE = RESOURCE_ERROR_HEAP; \ LOCAL_Error_Size = n * sizeof(TYPE); \ goto LAB; \ } /** * Error stages since it was initially processed. * * Notice that some of the stages may be active simultaneouly. */ typedef enum yap_error_status { /// where we like to be YAP_NO_ERROR_STATUS = 0x0, /// Prolog discovered the problem YAP_ERROR_INITIATED_IN_PROLOG = 0x1, /// The problem was found before the system can cope YAP_ERROR_INITIATED_IN_BOOT = 0x2, /// C-helper like must_ found out the problem YAP_ERROR_INITIATED_IN_HELPER = 0x4, /// C-builtin crashed YAP_ERROR_INITIATED_IN_SYSTEM_C = 0x8, /// user code crashed YAP_ERROR_INITIATED_IN_USER_C = 0x10, /// ok, we put a throw to be dispatched YAP_THROW_THROWN = 0x20, /// someone caught it YAP_THROW_CAUGHT = 0x40, /// error became an exception (usually SWIG bridge) YAP_ERROR_EXPORTED_TO_CXX = 0x80, /// handle error in Prolog YAP_ERROR_BEING_PROCESSED_IN_PROLOG = 0x100 /// go back t } yap_error_stage_t; /// a Prolo goal that caused a bug typedef struct error_prolog_source { YAP_Int prologPredCl; YAP_UInt prologPredLine; YAP_UInt prologPredFirstLine; YAP_UInt prologPredLastLine; YAP_Atom prologPredName; YAP_UInt prologPredArity; YAP_Term prologPredModule; YAP_Atom prologPredFile; struct DB_TERM *errorGoal; struct error_prolog_source *errorParent; } error_prolog_source_t; /// all we need to know about an error/throw typedef struct yap_error_descriptor { enum yap_error_status status; yap_error_class_number errorClass; YAP_Atom errorAsText; YAP_Atom classAsText; yap_error_number errorNo; YAP_Int errorLine; const char *errorFunction; const char *errorFile; // struct error_prolog_source *errorSource; YAP_Int prologPredCl; YAP_UInt prologPredLine; YAP_UInt prologPredFirstLine; YAP_UInt prologPredLastLine; YAP_Atom prologPredName; YAP_UInt prologPredArity; YAP_Term prologPredModule; YAP_Atom prologPredFile; YAP_UInt prologParserLine; YAP_UInt prologParserFirstLine; YAP_UInt prologParserLastLine; YAP_Atom prologParserName; YAP_Atom prologParserFile; YAP_Bool prologConsulting; struct DB_TERM *errorTerm; char *errorMsg; size_t errorMsgLen; struct yap_error_descriptor *top_error; } yap_error_descriptor_t; /// compatibility with existing code.. #define LOCAL_Error_TYPE LOCAL_ActiveError->errorNo #define LOCAL_Error_File LOCAL_ActiveError->errorFile #define LOCAL_Error_Function LOCAL_ActiveError->errorFunction #define LOCAL_Error_Lineno LOCAL_ActiveError->errorLine #define LOCAL_Error_Size LOCAL_ActiveError->errorMsgLen #define LOCAL_BallTerm LOCAL_ActiveError->errorTerm #define LOCAL_ErrorMessage LOCAL_ActiveError->errorMsg extern bool Yap_find_prolog_culprit(); extern yap_error_class_number Yap_errorClass(yap_error_number e); extern const char *Yap_errorName(yap_error_number e); extern const char *Yap_errorClassName(yap_error_class_number e); extern void Yap_pushErrorContext(yap_error_descriptor_t * new_error); extern yap_error_descriptor_t *Yap_popErrorContext(void); #endif