#![no_std]
use js::*;
extern crate alloc;
pub trait GetProperty {
fn get_property(el: impl Into<f64>, name: &str) -> Option<Self>
where
Self: Sized;
}
impl GetProperty for f64 {
fn get_property(el: impl Into<f64>, name: &str) -> Option<Self> {
let v = el.into();
if !is_property_number(v, name) {
return None;
}
Some(
js!("function(el,strPtr,strLen){
el = this.getObject(el);
return el[this.readUtf8FromMemory(strPtr,strLen)];
}")
.invoke_3(v, name.as_ptr() as u32, name.len() as u32),
)
}
}
impl GetProperty for bool {
fn get_property(el: impl Into<f64>, name: &str) -> Option<Self> {
let v = js!(r#"function(el,strPtr,strLen){
el = this.getObject(el);
let i = el[this.readUtf8FromMemory(strPtr,strLen)];
if(typeof i !== "boolean"){
return -1;
}
return el[this.readUtf8FromMemory(strPtr,strLen)] ? 1 : 0;
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
if v == -1.0 {
return None;
} else {
Some(v == 1.0)
}
}
}
impl GetProperty for alloc::string::String {
fn get_property(el: impl Into<f64>, name: &str) -> Option<Self> {
let attr = js!(r#"function(o,strPtr,strLen){
o = this.getObject(o);
const a = o[this.readUtf8FromMemory(strPtr,strLen)];
if(a === null){
return -1;
}
return this.writeUtf8ToMemory(a);
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
if attr == -1.0 {
return None;
} else {
let allocation_id = attr as usize;
let s = extract_string_from_memory(allocation_id);
clear_allocation(allocation_id);
Some(s)
}
}
}
impl GetProperty for JSObject {
fn get_property(el: impl Into<f64>, name: &str) -> Option<Self> {
let o = js!(r#"function(o,strPtr,strLen){
o = this.getObject(o);
const a = o[this.readUtf8FromMemory(strPtr,strLen)];
if(a === null){
return -1;
}
return this.storeObject(a);
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
if o == -1.0 {
return None;
} else {
Some(JSObject::from(o))
}
}
}
pub fn get_property<T>(el: impl Into<f64>, id: &str) -> Option<T>
where
T: GetProperty,
{
T::get_property(el, id)
}
pub trait SetProperty {
fn set_property(el: impl Into<f64>, id: &str, s: Self);
}
impl SetProperty for f64 {
fn set_property(el: impl Into<f64>, id: &str, v: Self) {
js!("function(el,strPtr,strLen,value){
el = this.getObject(el);
return el[this.readUtf8FromMemory(strPtr,strLen)] = value;
}")
.invoke_4(el.into(), id.as_ptr() as u32, id.len() as u32, v);
}
}
impl SetProperty for &str {
fn set_property(el: impl Into<f64>, name: &str, txt: Self) {
js!(r#"function(o,strPtr,strLen,valPtr,valLen){
o = this.getObject(o);
o[this.readUtf8FromMemory(strPtr,strLen)] = this.readUtf8FromMemory(valPtr,valLen);
}"#)
.invoke_5(
el.into(),
name.as_ptr() as u32,
name.len() as u32,
txt.as_ptr() as u32,
txt.len() as u32,
);
}
}
impl SetProperty for bool {
fn set_property(el: impl Into<f64>, name: &str, value: Self) {
js!(r#"function(o,strPtr,strLen,val){
o = this.getObject(o);
o[this.readUtf8FromMemory(strPtr,strLen)] = val > 0;
}"#)
.invoke_4(
el.into(),
name.as_ptr() as u32,
name.len() as u32,
if value { 1.0 } else { 0.0 },
);
}
}
impl SetProperty for JSObject {
fn set_property(el: impl Into<f64>, name: &str, value: Self) {
js!(r#"function(o,strPtr,strLen,val){
o = this.getObject(o);
o[this.readUtf8FromMemory(strPtr,strLen)] = this.getObject(val);
}"#)
.invoke_4(
el.into(),
name.as_ptr() as u32,
name.len() as u32,
value.handle,
);
}
}
pub fn set_property<T>(el: impl Into<f64>, id: &str, v: T)
where
T: SetProperty,
{
T::set_property(el, id, v)
}
pub fn is_property_null(el: impl Into<f64>, name: &str) -> bool {
let v = js!(r#"function(o,strPtr,strLen,val){
o = this.getObject(o);
return o[this.readUtf8FromMemory(strPtr,strLen)] === null ? 1.0 : 0.0;
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
v == 1.0
}
pub fn is_property_undefined(el: impl Into<f64>, name: &str) -> bool {
let v = js!(r#"function(o,strPtr,strLen,val){
o = this.getObject(o);
return o[this.readUtf8FromMemory(strPtr,strLen)] === undefined ? 1.0 : 0.0;
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
v == 1.0
}
pub fn is_property_number(el: impl Into<f64>, name: &str) -> bool {
let v = js!(r#"function(o,strPtr,strLen,val){
o = this.getObject(o);
return typeof o[this.readUtf8FromMemory(strPtr,strLen)] === "number" ? 1.0 : 0.0;
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
v == 1.0
}
pub fn is_property_bool(el: impl Into<f64>, name: &str) -> bool {
let v = js!(r#"function(o,strPtr,strLen,val){
o = this.getObject(o);
return typeof o[this.readUtf8FromMemory(strPtr,strLen)] === "boolean" ? 1.0 : 0.0;
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
v == 1.0
}
pub fn is_property_string(el: impl Into<f64>, name: &str) -> bool {
let v = js!(r#"function(o,strPtr,strLen,val){
o = this.getObject(o);
return typeof o[this.readUtf8FromMemory(strPtr,strLen)] === "string" ? 1.0 : 0.0;
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
v == 1.0
}
pub fn is_property_object(el: impl Into<f64>, name: &str) -> bool {
let v = js!(r#"function(o,strPtr,strLen,val){
o = this.getObject(o);
return typeof o[this.readUtf8FromMemory(strPtr,strLen)] === "object" ? 1.0 : 0.0;
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
v == 1.0
}
pub fn is_property_array(el: impl Into<f64>, name: &str) -> bool {
let v = js!(r#"function(o,strPtr,strLen,val){
o = this.getObject(o);
return Array.isArray(o[this.readUtf8FromMemory(strPtr,strLen)]) ? 1.0 : 0.0;
}"#)
.invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32);
v == 1.0
}