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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use js::jsapi::JSVal;
use js::{JSVAL_FALSE, JSVAL_TRUE};
use js::glue::{RUST_UINT_TO_JSVAL, RUST_JSVAL_TO_INT, RUST_DOUBLE_TO_JSVAL, RUST_JSVAL_TO_DOUBLE};
pub trait JSValConvertible {
fn to_jsval(&self) -> JSVal;
fn from_jsval(val: JSVal) -> Option<Self>;
}
impl JSValConvertible for i64 {
#[fixed_stack_segment]
fn to_jsval(&self) -> JSVal {
unsafe {
RUST_DOUBLE_TO_JSVAL(*self as f64)
}
}
#[fixed_stack_segment]
fn from_jsval(val: JSVal) -> Option<i64> {
unsafe {
Some(RUST_JSVAL_TO_DOUBLE(val) as i64)
}
}
}
impl JSValConvertible for u32 {
#[fixed_stack_segment]
fn to_jsval(&self) -> JSVal {
unsafe {
RUST_UINT_TO_JSVAL(*self)
}
}
#[fixed_stack_segment]
fn from_jsval(val: JSVal) -> Option<u32> {
unsafe {
Some(RUST_JSVAL_TO_INT(val) as u32)
}
}
}
impl JSValConvertible for i32 {
#[fixed_stack_segment]
fn to_jsval(&self) -> JSVal {
unsafe {
RUST_UINT_TO_JSVAL(*self as u32)
}
}
#[fixed_stack_segment]
fn from_jsval(val: JSVal) -> Option<i32> {
unsafe {
Some(RUST_JSVAL_TO_INT(val) as i32)
}
}
}
impl JSValConvertible for u16 {
#[fixed_stack_segment]
fn to_jsval(&self) -> JSVal {
unsafe {
RUST_UINT_TO_JSVAL(*self as u32)
}
}
#[fixed_stack_segment]
fn from_jsval(val: JSVal) -> Option<u16> {
unsafe {
Some(RUST_JSVAL_TO_INT(val) as u16)
}
}
}
impl JSValConvertible for bool {
fn to_jsval(&self) -> JSVal {
if *self {
JSVAL_TRUE
} else {
JSVAL_FALSE
}
}
fn from_jsval(val: JSVal) -> Option<bool> {
if val == JSVAL_TRUE {
Some(true)
} else if val == JSVAL_FALSE {
Some(false)
} else {
None
}
}
}
impl JSValConvertible for f32 {
#[fixed_stack_segment]
fn to_jsval(&self) -> JSVal {
unsafe {
RUST_DOUBLE_TO_JSVAL(*self as f64)
}
}
#[fixed_stack_segment]
fn from_jsval(val: JSVal) -> Option<f32> {
unsafe {
Some(RUST_JSVAL_TO_DOUBLE(val) as f32)
}
}
}
impl JSValConvertible for f64 {
#[fixed_stack_segment]
fn to_jsval(&self) -> JSVal {
unsafe {
RUST_DOUBLE_TO_JSVAL(*self as f64)
}
}
#[fixed_stack_segment]
fn from_jsval(val: JSVal) -> Option<f64> {
unsafe {
Some(RUST_JSVAL_TO_DOUBLE(val) as f64)
}
}
}
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