/
js_state.go
68 lines (53 loc) · 1.28 KB
/
js_state.go
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package jsgo
// #include "mujs.h"
// #include <stdlib.h>
import "C"
import (
"runtime"
"unsafe"
)
// JsState ...
type JsState struct {
vm *C.js_State
}
// NewJsState ...
func NewJsState() *JsState {
state := new(JsState)
state.vm = C.js_newstate(nil, nil, 1) // JS_STRICT
runtime.SetFinalizer(state, (*JsState).free)
return state
}
func (state *JsState) free() {
C.js_freestate(state.vm)
}
// DoString ...
func (state *JsState) DoString(text string) (JsValue, JsError) {
source := C.CString(text)
defer C.free(unsafe.Pointer(source))
if rc := C.js_ploadstring(state.vm, C.CString("[string]"), source); rc != 0 {
return nil, newJsError(state)
}
C.js_pushglobal(state.vm)
if rc := C.js_pcall(state.vm, 0); rc != 0 {
return nil, newJsError(state)
}
return newJsValue(state), nil
}
// Set ...
func (state *JsState) Set(name string, value JsValue) {
property := C.CString(name)
defer C.free(unsafe.Pointer(property))
// push value
C.js_getregistry(state.vm, value.reference())
// set property
C.js_setglobal(state.vm, property)
}
// Get ...
func (state *JsState) Get(name string) JsValue {
property := C.CString(name)
defer C.free(unsafe.Pointer(property))
// get property
C.js_getglobal(state.vm, property)
// return the property value
return newJsValue(state)
}