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