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globals.h
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globals.h
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#ifndef SV_GLOBALS_H
#define SV_GLOBALS_H
#include "silver/engine.h"
#include "errors.h"
#include "shapes.h"
static inline ant_value_t sv_global_get(ant_t *js, const char *str, uint32_t len) {
if (!str) return js_mkundef();
const char *interned = intern_string(str, len);
if (!interned) return js_mkundef();
ant_value_t val = lkp_interned_val(js, js->global, interned);
if (is_undefined(val)) val = js_getprop_fallback(js, js->global, interned);
return val;
}
static inline sv_ic_entry_t *sv_global_ic_slot_for_ip(sv_func_t *func, uint8_t *ip) {
if (!func || !func->ic_slots || !ip) return NULL;
uint16_t ic_idx = sv_get_u16(ip + 5);
if (ic_idx == UINT16_MAX || ic_idx >= func->ic_count) return NULL;
return &func->ic_slots[ic_idx];
}
static inline ant_object_t *sv_global_obj_ptr(ant_t *js) {
if (!is_object_type(js->global)) return NULL;
return js_obj_ptr(js_as_obj(js->global));
}
static inline bool sv_global_ic_try_get_hit(
ant_t *js,
sv_ic_entry_t *ic,
const char *interned,
ant_value_t *out
) {
if (!ic || !interned) return false;
ant_object_t *gptr = sv_global_obj_ptr(js);
if (!gptr || gptr->is_exotic || !gptr->shape) return false;
if (ic->epoch != ant_ic_epoch_counter) return false;
if (ic->cached_shape != gptr->shape) return false;
if (ic->cached_index >= gptr->prop_count) return false;
const ant_shape_prop_t *prop = ant_shape_prop_at(gptr->shape, ic->cached_index);
if (!prop) return false;
if (prop->type != ANT_SHAPE_KEY_STRING || prop->key.interned != interned) return false;
if (prop->has_getter || prop->has_setter) return false;
*out = ant_object_prop_get_unchecked(gptr, ic->cached_index);
return true;
}
static inline bool sv_global_ic_try_fill(
ant_t *js,
sv_ic_entry_t *ic,
const char *interned,
ant_value_t *out
) {
if (!ic || !interned) return false;
ant_object_t *gptr = sv_global_obj_ptr(js);
if (!gptr || gptr->is_exotic || !gptr->shape) return false;
int32_t slot = ant_shape_lookup_interned(gptr->shape, interned);
if (slot < 0) return false;
uint32_t idx = (uint32_t)slot;
if (idx >= gptr->prop_count) return false;
const ant_shape_prop_t *prop = ant_shape_prop_at(gptr->shape, idx);
if (!prop) return false;
if (prop->type != ANT_SHAPE_KEY_STRING || prop->key.interned != interned) return false;
if (prop->has_getter || prop->has_setter) return false;
ic->cached_shape = gptr->shape;
ic->cached_holder = gptr;
ic->cached_index = idx;
ic->epoch = ant_ic_epoch_counter;
*out = ant_object_prop_get_unchecked(gptr, idx);
return true;
}
static inline ant_value_t sv_global_get_interned_ic(
ant_t *js,
const char *interned,
sv_func_t *func,
uint8_t *ip
) {
ant_value_t out = js_mkundef();
sv_ic_entry_t *ic = sv_global_ic_slot_for_ip(func, ip);
if (sv_global_ic_try_get_hit(js, ic, interned, &out)) return out;
if (sv_global_ic_try_fill(js, ic, interned, &out)) return out;
ant_value_t val = lkp_interned_val(js, js->global, interned);
if (is_undefined(val)) val = js_getprop_fallback(js, js->global, interned);
return val;
}
static inline ant_value_t sv_op_get_global(
sv_vm_t *vm, ant_t *js,
sv_func_t *func, uint8_t *ip
) {
sv_atom_t *a = &func->atoms[sv_get_u32(ip + 1)];
ant_value_t super_val = sv_vm_get_super_val(vm);
if (a->len == 5 && memcmp(a->str, "super", 5) == 0 && vtype(super_val) != T_UNDEF) {
ant_value_t sv = super_val;
vm->stack[vm->sp++] = sv;
return sv;
}
ant_value_t val = sv_global_get_interned_ic(js, a->str, func, ip);
if (is_undefined(val) && lkp_interned(js, js->global, a->str, a->len) == 0) return js_mkerr_typed(
js, JS_ERR_REFERENCE, "'%.*s' is not defined",
(int)a->len, a->str
);
vm->stack[vm->sp++] = val;
return val;
}
static inline void sv_op_get_global_undef(
sv_vm_t *vm, ant_t *js,
sv_func_t *func, uint8_t *ip
) {
sv_atom_t *a = &func->atoms[sv_get_u32(ip + 1)];
vm->stack[vm->sp++] = sv_global_get_interned_ic(js, a->str, func, ip);
}
static inline ant_value_t sv_op_put_global(
sv_vm_t *vm, ant_t *js,
sv_frame_t *frame, sv_func_t *func, uint8_t *ip
) {
sv_atom_t *a = &func->atoms[sv_get_u32(ip + 1)];
if (sv_frame_is_strict(frame) && lkp_interned(js, js->global, a->str, a->len) == 0)
return js_mkerr_typed(
js, JS_ERR_REFERENCE, "'%.*s' is not defined",
(int)a->len, a->str);
ant_value_t key = js_mkstr(js, a->str, a->len);
return js_setprop(js, js->global, key, vm->stack[--vm->sp]);
}
#endif

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