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141 lines
2.4 KiB
C
141 lines
2.4 KiB
C
#include "builtins.h"
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#include "stack.h"
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#include "shelpers.h"
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#include <memory.h>
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extern char *str_func;
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extern char *str_undef;
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int ifunc_set(interpreter *it);
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int ifunc_label(interpreter *it);
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int ifunc_end(interpreter *it);
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int ifunc_if(interpreter *it);
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int ifunc_do(interpreter *it);
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int ifunc_while(interpreter *it);
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int ifunc_ret(interpreter *it);
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const func_t indent_up[IUP_COUNT] = {
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ifunc_if, ifunc_do, ifunc_label
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};
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const func_t indent_down[IDOWN_COUNT] = {
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ifunc_end, ifunc_while
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};
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void iload_core(interpreter *interp)
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{
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inew_cfunc(interp, "set", ifunc_set);
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inew_cfunc(interp, "func", ifunc_label);
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inew_cfunc(interp, "end", ifunc_end);
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inew_cfunc(interp, "if", ifunc_if);
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inew_cfunc(interp, "do", ifunc_do);
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inew_cfunc(interp, "while", ifunc_while);
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inew_cfunc(interp, "ret", ifunc_ret);
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}
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int ifunc_set(interpreter *it)
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{
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variable *n = igetarg(it, 0);
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variable *v = igetarg(it, 1);
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if (n == 0)
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return -1;
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n->valtype = v->valtype;
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n->value = v->value;
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if (n->svalue != 0 && n->svalue != str_func && n->svalue != str_undef)
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free(n->svalue);
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n->svalue = strclone(v->svalue);
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return 0;
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}
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int ifunc_label(interpreter *it)
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{
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variable *n = igetarg(it, 0);
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if (n == 0)
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return -1;
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n->valtype = FUNC;
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n->value = it->lnidx;
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n->svalue = str_func;
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iskip(it);
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return 0;
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}
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int ifunc_if(interpreter *it)
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{
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int v = igetarg_integer(it, 0);
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if (v == 0)
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iskip(it);
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void *tmp = ipop(it);
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ipush(it, (void *)-1);
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ipush(it, tmp);
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return 0;
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}
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int ifunc_end(interpreter *it)
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{
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if (it->stidx == 0)
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return 0;
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uint32_t lnidx = (uint32_t)ipop(it) + 1;
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if (lnidx != 0)
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it->lnidx = lnidx;
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return 0;
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}
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int ifunc_do(interpreter *it)
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{
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ipush(it, (void *)it->lnidx);
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return 0;
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}
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int ifunc_while(interpreter *it)
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{
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//int c = igetarg_integer(it, 0);
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ipop(it);
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int nidx = (int)ipop(it);
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//if (c != 0) {
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//ipush(it, (void *)nidx);
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it->lnidx = nidx - 1;
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//} else {
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// c++;
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//}
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ipush(it, 0);
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return 0;
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}
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void iret(interpreter *it, variable *v)
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{
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switch (v->valtype) {
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case INTEGER:
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inew_integer(it, "RET", INT(v));
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break;
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case FLOAT:
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inew_float(it, "RET", FLOAT(v));
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break;
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case STRING:
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inew_string(it, "RET", v->svalue);
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break;
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default:
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return;
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break;
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}
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if (it->ret != 0) {
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it->ret->valtype = v->valtype;
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it->ret->value = v->value;
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it->ret->svalue = v->svalue;
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it->ret = 0;
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}
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}
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int ifunc_ret(interpreter *it)
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{
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variable *v = igetarg(it, 0);
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iret(it, v);
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return 0;
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}
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