json.go

// Copyright 2021 Roger Chapman and the v8go contributors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package v8go

// #include <stdlib.h>
// #include "json.h"
import "C"
import (
	"errors"
	"unsafe"
)

// JSONParse tries to parse the string and returns it as *Value if successful.
// Any JS errors will be returned as `JSError`.
func JSONParse(ctx *Context, str string) (*Value, error) {
	if ctx == nil {
		return nil, errors.New("v8go: Context is required")
	}
	cstr := C.CString(str)
	defer C.free(unsafe.Pointer(cstr))

	rtn := C.JSONParse(ctx.ptr, cstr)
	return valueResult(ctx, rtn)
}

// JSONStringify tries to stringify the JSON-serializable object value and returns it as string.
func JSONStringify(ctx *Context, val Valuer) (string, error) {
	if val == nil || val.value() == nil {
		return "", errors.New("v8go: Value is required")
	}
	// If a nil context is passed we'll use the context/isolate that created the value.
	var ctxPtr C.ContextPtr
	if ctx != nil {
		ctxPtr = ctx.ptr
	}

	str := C.JSONStringify(ctxPtr, val.value().ptr)
	defer C.free(unsafe.Pointer(str))
	return C.GoString(str), nil
}