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/*jshint esversion: 6 */
"use strict";
class Proto {
constructor(L) {
this.k = []; // constants used by the function
this.p = []; // functions defined inside the function
this.code = []; // opcodes
this.cache = null; // last-created closure with this prototype
this.lineinfo = []; // map from opcodes to source lines (debug information)
this.upvalues = []; // upvalue information
this.numparams = 0; // number of fixed parameters
this.is_vararg = 0;
this.maxstacksize = 0; // number of registers needed by this function
this.locvars = []; // information about local variables (debug information)
this.linedefined = 0; // debug information
this.lastlinedefined = 0; // debug information
this.source = null; // used for debug information
}
}
class UpVal {
constructor() {
this.v = null; /* if null, upval is closed, value is in u.value */
this.u = {
open: { /* (when open) */
next: null, /* linked list */
touched: false /* mark to avoid cycles with dead threads */
},
value: null /* the value (when closed) */
};
}
val(L) {
return this.v !== null ? L.stack[this.v] : this.u.value;
}
setval(L, ra) {
if (this.v !== null) this.v = ra;
else this.u.value = L.stack[ra];
}
isopen() {
return this.v !== null;
}
}
module.exports = {
Proto: Proto,
UpVal: UpVal
};
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