js_vm_t* js_vm_new()
{
js_vm_t* vm = js_alloc(sizeof(js_vm_t));
// this proto/constructor is fixed up later by js_lib_initialize
vm->global_scope = js_scope_make_global(vm, js_value_make_object(js_value_undefined(), js_value_undefined()));
js_object_put(vm->global_scope->global_object, js_cstring("global"), vm->global_scope->global_object);
js_lib_initialize(vm);
return vm;
}
static VAL js_object_base_get(js_value_t* obj, js_string_t* prop)
{
js_property_descriptor_t* descr = NULL;
js_value_t* this = obj;
while(!st_lookup(obj->object.properties, (st_data_t)prop, (st_data_t*)&descr)) {
/* if not in object, look in prototype */
if(js_value_is_primitive(obj->object.prototype)) {
/* do not attempt if prototype is primitive */
return js_value_undefined();
}
obj = js_value_get_pointer(obj->object.prototype);
}
if(!descr->is_accessor) {
return descr->data.value;
} else {
if(js_value_get_type(descr->accessor.get) == JS_T_FUNCTION) {
return js_call(descr->accessor.get, js_value_make_pointer(this), 0, NULL);
}
return js_value_undefined();
}
}
#include <stddef.h>
#include <math.h>
#include <limits.h>
#include "lib.h"
#ifndef M_PI
#define M_PI (3.14159265358979323846)
#endif
static VAL Math_floor(js_vm_t* vm, void* state, VAL this, uint32_t argc, VAL* argv)
{
double d = js_value_get_double(js_to_number(argc ? argv[0] : js_value_undefined()));
return js_value_make_double(floor(d));
}
static VAL Math_round(js_vm_t* vm, void* state, VAL this, uint32_t argc, VAL* argv)
{
double d = js_value_get_double(js_to_number(argc ? argv[0] : js_value_undefined()));
return js_value_make_double(floor(d + 0.5));
}
static VAL Math_sin(js_vm_t* vm, void* state, VAL this, uint32_t argc, VAL* argv)
{
double d = js_value_get_double(js_to_number(argc ? argv[0] : js_value_undefined()));
return js_value_make_double(sin(d));
}
static VAL Math_cos(js_vm_t* vm, void* state, VAL this, uint32_t argc, VAL* argv)
{
double d = js_value_get_double(js_to_number(argc ? argv[0] : js_value_undefined()));
return js_value_make_double(cos(d));
