63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/**
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* See Copyright Notice in picrin.h
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*/
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#ifndef PICRIN_ERROR_H
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#define PICRIN_ERROR_H
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#if defined(__cplusplus)
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extern "C" {
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#endif
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struct pic_error {
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PIC_OBJECT_HEADER
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pic_sym *type;
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pic_str *msg;
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pic_value irrs;
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pic_str *stack;
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};
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#define pic_error_p(v) (pic_type(v) == PIC_TT_ERROR)
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#define pic_error_ptr(v) ((struct pic_error *)pic_ptr(v))
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struct pic_error *pic_make_error(pic_state *, pic_sym *, const char *, pic_list);
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/* do not return from try block! */
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#define pic_try \
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pic_try_(PIC_GENSYM(escape))
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#define pic_catch \
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pic_catch_(PIC_GENSYM(label))
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#define pic_try_(cont) \
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do { \
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struct pic_cont *cont = pic_malloc(pic, sizeof(struct pic_cont)); \
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pic_save_point(pic, cont); \
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if (PIC_SETJMP(pic, cont->jmp.buf) == 0) { \
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do { \
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pic_push_try(pic, pic_make_cont(pic, cont));
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#define pic_catch_(label) \
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pic_pop_try(pic); \
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} while (0); \
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pic->jmp = pic->jmp->prev; \
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} else { \
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pic->jmp = pic->jmp->prev; \
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goto label; \
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} \
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} while (0); \
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if (0) \
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label:
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void pic_push_try(pic_state *, struct pic_proc *);
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void pic_pop_try(pic_state *);
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pic_value pic_raise_continuable(pic_state *, pic_value);
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PIC_NORETURN void pic_raise(pic_state *, pic_value);
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PIC_NORETURN void pic_throw(pic_state *, pic_sym *, const char *, pic_list);
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PIC_NORETURN void pic_error(pic_state *, const char *, pic_list);
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#if defined(__cplusplus)
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}
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#endif
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#endif
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