MIRROR: javascript for 🐜's, a tiny runtime with big ambitions
disable SPECIAL_OP(0) arguments
+31
-1
+6
-1
src/silver/swarm.c
+6
-1
src/silver/swarm.c
···
1054
1054
case OP_RETURN: case OP_RETURN_UNDEF:
1055
1055
case OP_GET_FIELD: case OP_GET_FIELD2: case OP_GET_GLOBAL:
1056
1056
case OP_SPECIAL_OBJ:
1057
+
if (op == OP_SPECIAL_OBJ && sv_get_u8(ip + 1) == 0 &&
1058
+
!f->is_strict && f->param_count > 0) return false;
1057
1059
case OP_NOP: case OP_LINE_NUM: case OP_COL_NUM: case OP_LABEL:
1058
1060
break;
1059
1061
default:
···
2002
2004
case OP_STR_ALC_SNAPSHOT:
2003
2005
case OP_TO_PROPKEY:
2004
2006
case OP_RETURN: case OP_RETURN_UNDEF:
2005
-
case OP_SPECIAL_OBJ:
2007
+
case OP_SPECIAL_OBJ: if (
2008
+
op == OP_SPECIAL_OBJ && sv_get_u8(ip + 1) == 0
2009
+
&& !func->is_strict && func->param_count > 0
2010
+
) eligible = false;
2006
2011
case OP_SET_NAME:
2007
2012
case OP_TRY_PUSH: case OP_TRY_POP:
2008
2013
case OP_THROW: case OP_THROW_ERROR:
+25
tests/test_jit_arguments_object.cjs
+25
tests/test_jit_arguments_object.cjs
···
1
+
function assertEq(actual, expected, msg) {
2
+
if (actual !== expected) {
3
+
throw new Error(`${msg}: expected ${expected}, got ${actual}`);
4
+
}
5
+
}
6
+
7
+
function mappedRead(a) {
8
+
a = 2;
9
+
return arguments[0];
10
+
}
11
+
12
+
function mappedWrite(a) {
13
+
arguments[0] = 2;
14
+
return a;
15
+
}
16
+
17
+
for (let i = 0; i < 500; i++) {
18
+
assertEq(mappedRead(1), 2, "warm mapped read");
19
+
assertEq(mappedWrite(1), 2, "warm mapped write");
20
+
}
21
+
22
+
assertEq(mappedRead(1), 2, "hot mapped read");
23
+
assertEq(mappedWrite(1), 2, "hot mapped write");
24
+
25
+
console.log("OK: test_jit_arguments_object");