42 lines
1 KiB
C
42 lines
1 KiB
C
#ifndef MCGG_H
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#define MCGG_H
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/* Excruciating macro which packs ir opcodes and sizes into an int for iburg's benefit.
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*
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* Sizes are mapped as: 0=1, 1=1, 2=2, 4=3, 8=4.
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*/
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#define ir_to_esn(iropcode, size) \
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((iropcode)*4 + \
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(((size) == 4) ? 2 : \
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((size) == 8) ? 3 : \
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((size) == 0) ? 0 : \
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(size-1)))
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#define STATE_TYPE void*
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typedef struct ir* NODEPTR_TYPE;
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#define STATE_LABEL(p) ((p)->state_label)
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extern void* burm_label(struct ir* ir);
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extern int burm_rule(void* state, int goalnt);
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extern const char* burm_string[];
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extern const short *burm_nts[];
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extern struct ir** burm_kids(struct ir* p, int eruleno, struct ir* kids[]);
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extern void burm_trace(struct ir* p, int ruleno, int cost, int bestcost);
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struct burm_emitter_data
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{
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void* user;
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void (*emit_string)(const char* data);
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void (*emit_ir)(struct ir* ir);
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void (*emit_eoi)(void);
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};
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typedef void burm_emitter_t(struct ir* ir, struct burm_emitter_data* data);
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extern burm_emitter_t* const burm_emitters[];
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#endif
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/* vim: set sw=4 ts=4 expandtab : */
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