121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/**
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* See Copyright Notice in picrin.h
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*/
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#ifndef PICRIN_STATE_H
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#define PICRIN_STATE_H
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#include "khash.h"
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#include "object.h"
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KHASH_DECLARE(oblist, struct string *, struct symbol *)
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struct context {
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PIC_JMPBUF jmp;
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size_t ai;
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/* vm */
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const code_t *pc;
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struct frame *sp;
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struct frame *fp;
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struct irep *irep;
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code_t tmpcode[2];
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struct context *prev;
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};
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struct pic_state {
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pic_allocf allocf;
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void *userdata;
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struct context *cxt, default_cxt;
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size_t ai;
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pic_value dyn_env;
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pic_value features; /* list of symbols */
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khash_t(oblist) oblist; /* string to symbol */
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pic_value globals; /* dict */
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bool gc_enable;
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struct heap *heap;
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struct object **arena;
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size_t arena_size;
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pic_value halt; /* top continuation */
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pic_panicf panicf;
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};
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struct heap *pic_heap_open(pic_state *);
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void pic_heap_close(pic_state *, struct heap *);
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pic_value pic_global_ref(pic_state *pic, pic_value uid);
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void pic_global_set(pic_state *pic, pic_value uid, pic_value value);
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#define MKCALL(cxt,argc) \
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((cxt)->tmpcode[0] = OP_CALL, (cxt)->tmpcode[1] = (argc), (cxt)->tmpcode)
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#define CONTEXT_VINITK(pic,cxt,proc,k,n,ap) do { \
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int i; \
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(cxt)->pc = MKCALL((cxt), (n) + 1); \
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(cxt)->sp = pic_make_frame_unsafe(pic, (n) + 3); \
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(cxt)->sp->regs[0] = (proc); \
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(cxt)->sp->regs[1] = k; \
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for (i = 0; i < (n); ++i) { \
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(cxt)->sp->regs[i + 2] = va_arg(ap, pic_value); \
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} \
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(cxt)->fp = NULL; \
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(cxt)->irep = NULL; \
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} while (0)
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#define CONTEXT_INITK(pic,cxt,proc,k,n,argv) do { \
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int i; \
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(cxt)->pc = MKCALL((cxt), (n) + 1); \
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(cxt)->sp = pic_make_frame_unsafe(pic, (n) + 3); \
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(cxt)->sp->regs[0] = (proc); \
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(cxt)->sp->regs[1] = k; \
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for (i = 0; i < (n); ++i) { \
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(cxt)->sp->regs[i + 2] = (argv)[i]; \
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} \
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(cxt)->fp = NULL; \
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(cxt)->irep = NULL; \
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} while (0)
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#define CONTEXT_VINIT(pic,cxt,proc,n,ap) do { \
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int i; \
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(cxt)->pc = MKCALL((cxt), (n)); \
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(cxt)->sp = pic_make_frame_unsafe(pic, (n) + 2); \
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(cxt)->sp->regs[0] = (proc); \
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for (i = 0; i < (n); ++i) { \
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(cxt)->sp->regs[i + 1] = va_arg(ap, pic_value); \
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} \
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(cxt)->fp = NULL; \
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(cxt)->irep = NULL; \
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} while (0)
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#define CONTEXT_INIT(pic,cxt,proc,n,argv) do { \
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int i; \
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(cxt)->pc = MKCALL((cxt), (n)); \
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(cxt)->sp = pic_make_frame_unsafe(pic, (n) + 2); \
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(cxt)->sp->regs[0] = (proc); \
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for (i = 0; i < (n); ++i) { \
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(cxt)->sp->regs[i + 1] = (argv)[i]; \
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} \
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(cxt)->fp = NULL; \
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(cxt)->irep = NULL; \
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} while (0)
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void pic_vm(pic_state *pic, struct context *cxt);
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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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