codegen.c: fix evaluation order of attribute assignment.
MODIFY
mrbgems/mruby-compiler/core/codegen.c
mrbgems/mruby-compiler/core/codegen.c
@@ -1788,8 +1788,6 @@ gen_assignment(codegen_scope *s, node *tree, node *rhs, int sp, int val)
case NODE_CONST:
case NODE_NIL:
case NODE_MASGN:
- case NODE_SCALL:
- case NODE_CALL:
if (rhs) {
codegen(s, rhs, VAL);
pop();
@@ -1798,6 +1796,8 @@ gen_assignment(codegen_scope *s, node *tree, node *rhs, int sp, int val)
break;
case NODE_COLON2:
+ case NODE_CALL:
+ case NODE_SCALL:
/* keep evaluation order */
break;
@@ -1855,12 +1855,72 @@ gen_assignment(codegen_scope *s, node *tree, node *rhs, int sp, int val)
case NODE_CALL:
case NODE_SCALL:
+ {
+ int noself = 0, safe = (type == NODE_SCALL), skip = 0, top, call, n = 0;
+ mrb_sym mid = nsym(tree->cdr->car);
+
+ top = cursp();
+ if (val || sp == cursp()) {
+ push(); /* room for retval */
+ }
+ call = cursp();
+ if (!tree->car) {
+ noself = 1;
+ push();
+ }
+ else {
+ codegen(s, tree->car, VAL); /* receiver */
+ }
+ if (safe) {
+ int recv = cursp()-1;
+ gen_move(s, cursp(), recv, 1);
+ skip = genjmp2_0(s, OP_JMPNIL, cursp(), val);
+ }
+ tree = tree->cdr->cdr->car;
+ if (tree) {
+ if (tree->car) { /* positional arguments */
+ n = gen_values(s, tree->car, VAL, 0, (tree->cdr->car)?13:14);
+ if (n < 0) { /* variable length */
+ n = 15;
push();
- gen_call(s, tree, attrsym(s, nsym(tree->cdr->car)), sp, NOVAL, type == NODE_SCALL);
+ }
+ }
+ if (tree->cdr->car) { /* keyword arguments */
+ gen_hash(s, tree->cdr->car->cdr, VAL, 0);
+ if (n < 14) {
+ n++;
+ push();
+ }
+ else {
pop();
- if (val && cursp() != sp) {
+ genop_2(s, OP_ARYPUSH, cursp(), 1);
+ }
+ }
+ }
+ if (rhs) {
+ codegen(s, rhs, VAL);
+ pop();
+ }
+ else {
gen_move(s, cursp(), sp, 0);
}
+ if (val) {
+ gen_move(s, top, cursp(), 1);
+ }
+ if (n < 14) {
+ n++;
+ }
+ else {
+ pop();
+ genop_2(s, OP_ARYPUSH, cursp(), 1);
+ }
+ s->sp = call;
+ genop_3(s, noself ? OP_SSEND : OP_SEND, cursp(), new_sym(s, attrsym(s, mid)), n);
+ if (safe) {
+ dispatch(s, skip);
+ }
+ s->sp = top;
+ }
break;
case NODE_MASGN:

codegen.c: fix evaluation order of attribute assignment.