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allow ||= and &&=

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This commit is contained in:
Yukihiro Matsumoto
2012-05-31 15:54:09 +09:00
parent 1f1ab75d75
commit d19cdfd2b1
1 changed files with 20 additions and 5 deletions
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src/codegen.c
+20 -5
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@@ -1225,15 +1225,30 @@ codegen(codegen_scope *s, node *tree, int val)
break;
case NODE_OP_ASGN:
codegen(s, tree->car, VAL);
codegen(s, tree->cdr->cdr->car, VAL);
genop(s, MKOP_A(OP_LOADNIL, cursp()));
pop(); pop();
{
mrb_sym sym = (mrb_sym)tree->cdr->car;
const char *name = mrb_sym2name(s->mrb, sym);
int idx = new_msym(s, sym);
int idx;
codegen(s, tree->car, VAL);
if ((name[0] == '|' && strlen(name) == 2 && name[1] == '|') ||
(name[0] == '&' && strlen(name) == 2 && name[1] == '&')) {
int pos;
pop();
pos = new_label(s);
genop(s, MKOP_AsBx(name[0] == '|' ? OP_JMPIF : OP_JMPNOT, cursp(), 0));
codegen(s, tree->cdr->cdr->car, VAL);
pop();
gen_assignment(s, tree->car, cursp(), val);
dispatch(s, pos);
break;
}
codegen(s, tree->cdr->cdr->car, VAL);
genop(s, MKOP_A(OP_LOADNIL, cursp()));
pop(); pop();
idx = new_msym(s, sym);
if (name[0] == '+' && strlen(name) == 1) {
genop(s, MKOP_ABC(OP_ADD, cursp(), idx, 1));
}