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authorBenoit Giannangeli <giann008@gmail.com>2017-02-06 22:45:51 +0100
committerBenoit Giannangeli <giann008@gmail.com>2017-02-06 22:45:51 +0100
commited24912b2bfe3666a51760ca4b8e1a29ada12e25 (patch)
treebf95967cd6284a517ab775abba33b07c3db297a0 /src/lvm.js
parentdfc839625011d6bbc51c9415be4e55a6d4ffe45a (diff)
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VARARG
Diffstat (limited to 'src/lvm.js')
-rw-r--r--src/lvm.js19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/lvm.js b/src/lvm.js
index e0901c5..98dfa76 100644
--- a/src/lvm.js
+++ b/src/lvm.js
@@ -449,6 +449,25 @@ class LuaVM {
break;
}
case "OP_VARARG": {
+ let b = i.B - 1;
+ let n = base - ci.funcOff - cl.p.numparams - 1;
+ let j
+
+ if (n < 0) /* less arguments than parameters? */
+ n = 0; /* no vararg arguments */
+
+ if (b < 0) {
+ b = n; /* get all var. arguments */
+ base = ci.u.l.base;
+ ra = this.RA(i); /* previous call may change the stack */
+ L.top = ra + n;
+ }
+
+ for (j = 0; j < b && j < n; j++)
+ L.stack[ra + j] = L.stack[base - n - j];
+
+ for (; j < b; j++) /* complete required results with nil */
+ L.stack[ra + j] = new TValue(CT.LUA_TNIL, null);
break;
}
case "OP_EXTRAARG": {