Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-03 04:30:10 +01:00
Code Issues Projects Releases Packages Wiki Activity

Format script component

Browse source
This commit is contained in:
chansuke 2018-09-18 23:24:15 +09:00 • committed by Josh Matthews
parent 2ca7a13473
commit c37a345dc9
357 changed files with 25485 additions and 18076 deletions
Download patch file Download diff file Expand all files Collapse all files

171
components/script/dom/bindings/conversions.rs
View file

@ -69,8 +69,10 @@ pub trait IDLInterface {
}
/// A trait to mark an IDL interface as deriving from another one.
#[cfg_attr(feature = "unstable",
rustc_on_unimplemented = "The IDL interface `{Self}` is not derived from `{T}`.")]
#[cfg_attr(
feature = "unstable",
rustc_on_unimplemented = "The IDL interface `{Self}` is not derived from `{T}`."
)]
pub trait DerivedFrom<T: Castable>: Castable {}
impl<T: Float + ToJSValConvertible> ToJSValConvertible for Finite<T> {
@ -81,20 +83,21 @@ impl<T: Float + ToJSValConvertible> ToJSValConvertible for Finite<T> {
}
}
impl<T: Float + FromJSValConvertible<Config=()>> FromJSValConvertible for Finite<T> {
impl<T: Float + FromJSValConvertible<Config = ()>> FromJSValConvertible for Finite<T> {
type Config = ();
unsafe fn from_jsval(cx: *mut JSContext,
value: HandleValue,
option: ())
-> Result<ConversionResult<Finite<T>>, ()> {
unsafe fn from_jsval(
cx: *mut JSContext,
value: HandleValue,
option: (),
) -> Result<ConversionResult<Finite<T>>, ()> {
let result = match FromJSValConvertible::from_jsval(cx, value, option)? {
ConversionResult::Success(v) => v,
ConversionResult::Failure(error) => {
// FIXME(emilio): Why throwing instead of propagating the error?
throw_type_error(cx, &error);
return Err(());
}
},
};
match Finite::new(result) {
Some(v) => Ok(ConversionResult::Success(v)),
@ -106,13 +109,14 @@ impl<T: Float + FromJSValConvertible<Config=()>> FromJSValConvertible for Finite
}
}
impl <T: DomObject + IDLInterface> FromJSValConvertible for DomRoot<T> {
impl<T: DomObject + IDLInterface> FromJSValConvertible for DomRoot<T> {
type Config = ();
unsafe fn from_jsval(_cx: *mut JSContext,
value: HandleValue,
_config: Self::Config)
-> Result<ConversionResult<DomRoot<T>>, ()> {
unsafe fn from_jsval(
_cx: *mut JSContext,
value: HandleValue,
_config: Self::Config,
) -> Result<ConversionResult<DomRoot<T>>, ()> {
Ok(match root_from_handlevalue(value) {
Ok(result) => ConversionResult::Success(result),
Err(()) => ConversionResult::Failure("value is not an object".into()),
@ -129,19 +133,21 @@ impl<T: ToJSValConvertible + JSTraceable> ToJSValConvertible for RootedTraceable
}
impl<T> FromJSValConvertible for RootedTraceableBox<Heap<T>>
where
T: FromJSValConvertible + js::rust::GCMethods + Copy,
Heap<T>: JSTraceable + Default
where
T: FromJSValConvertible + js::rust::GCMethods + Copy,
Heap<T>: JSTraceable + Default,
{
type Config = T::Config;
unsafe fn from_jsval(cx: *mut JSContext,
value: HandleValue,
config: Self::Config)
-> Result<ConversionResult<Self>, ()> {
unsafe fn from_jsval(
cx: *mut JSContext,
value: HandleValue,
config: Self::Config,
) -> Result<ConversionResult<Self>, ()> {
T::from_jsval(cx, value, config).map(|result| match result {
ConversionResult::Success(inner) =>
ConversionResult::Success(RootedTraceableBox::from_box(Heap::boxed(inner))),
ConversionResult::Success(inner) => {
ConversionResult::Success(RootedTraceableBox::from_box(Heap::boxed(inner)))
},
ConversionResult::Failure(msg) => ConversionResult::Failure(msg),
})
}
@ -190,12 +196,12 @@ impl ToJSValConvertible for DOMString {
// https://heycam.github.io/webidl/#es-DOMString
impl FromJSValConvertible for DOMString {
type Config = StringificationBehavior;
unsafe fn from_jsval(cx: *mut JSContext,
value: HandleValue,
null_behavior: StringificationBehavior)
-> Result<ConversionResult<DOMString>, ()> {
if null_behavior == StringificationBehavior::Empty &&
value.get().is_null() {
unsafe fn from_jsval(
cx: *mut JSContext,
value: HandleValue,
null_behavior: StringificationBehavior,
) -> Result<ConversionResult<DOMString>, ()> {
if null_behavior == StringificationBehavior::Empty && value.get().is_null() {
Ok(ConversionResult::Success(DOMString::new()))
} else {
let jsstr = ToString(cx, value);
@ -231,16 +237,19 @@ pub unsafe fn jsstring_to_str(cx: *mut JSContext, s: *mut JSString) -> DOMString
"Found an unpaired surrogate in a DOM string. \
If you see this in real web content, \
please comment on https://github.com/servo/servo/issues/6564"
}
};
}
if opts::get().replace_surrogates {
error!(message!());
s.push('\u{FFFD}');
} else {
panic!(concat!(message!(), " Use `-Z replace-surrogates` \
on the command line to make this non-fatal."));
panic!(concat!(
message!(),
" Use `-Z replace-surrogates` \
on the command line to make this non-fatal."
));
}
}
},
}
}
s
@ -250,8 +259,11 @@ pub unsafe fn jsstring_to_str(cx: *mut JSContext, s: *mut JSString) -> DOMString
// http://heycam.github.io/webidl/#es-USVString
impl FromJSValConvertible for USVString {
type Config = ();
unsafe fn from_jsval(cx: *mut JSContext, value: HandleValue, _: ())
-> Result<ConversionResult<USVString>, ()> {
unsafe fn from_jsval(
cx: *mut JSContext,
value: HandleValue,
_: (),
) -> Result<ConversionResult<USVString>, ()> {
let jsstr = ToString(cx, value);
if jsstr.is_null() {
debug!("ToString failed");
@ -260,23 +272,28 @@ impl FromJSValConvertible for USVString {
let latin1 = JS_StringHasLatin1Chars(jsstr);
if latin1 {
// FIXME(ajeffrey): Convert directly from DOMString to USVString
return Ok(ConversionResult::Success(
USVString(String::from(jsstring_to_str(cx, jsstr)))));
return Ok(ConversionResult::Success(USVString(String::from(
jsstring_to_str(cx, jsstr),
))));
}
let mut length = 0;
let chars = JS_GetTwoByteStringCharsAndLength(cx, ptr::null(), jsstr, &mut length);
assert!(!chars.is_null());
let char_vec = slice::from_raw_parts(chars as *const u16, length as usize);
Ok(ConversionResult::Success(USVString(String::from_utf16_lossy(char_vec))))
Ok(ConversionResult::Success(USVString(
String::from_utf16_lossy(char_vec),
)))
}
}
// http://heycam.github.io/webidl/#es-ByteString
impl ToJSValConvertible for ByteString {
unsafe fn to_jsval(&self, cx: *mut JSContext, mut rval: MutableHandleValue) {
let jsstr = JS_NewStringCopyN(cx,
self.as_ptr() as *const libc::c_char,
self.len() as libc::size_t);
let jsstr = JS_NewStringCopyN(
cx,
self.as_ptr() as *const libc::c_char,
self.len() as libc::size_t,
);
if jsstr.is_null() {
panic!("JS_NewStringCopyN failed");
}
@ -287,10 +304,11 @@ impl ToJSValConvertible for ByteString {
// http://heycam.github.io/webidl/#es-ByteString
impl FromJSValConvertible for ByteString {
type Config = ();
unsafe fn from_jsval(cx: *mut JSContext,
value: HandleValue,
_option: ())
-> Result<ConversionResult<ByteString>, ()> {
unsafe fn from_jsval(
cx: *mut JSContext,
value: HandleValue,
_option: (),
) -> Result<ConversionResult<ByteString>, ()> {
let string = ToString(cx, value);
if string.is_null() {
debug!("ToString failed");
@ -304,7 +322,9 @@ impl FromJSValConvertible for ByteString {
assert!(!chars.is_null());
let char_slice = slice::from_raw_parts(chars as *mut u8, length as usize);
return Ok(ConversionResult::Success(ByteString::new(char_slice.to_vec())));
return Ok(ConversionResult::Success(ByteString::new(
char_slice.to_vec(),
)));
}
let mut length = 0;
@ -315,13 +335,13 @@ impl FromJSValConvertible for ByteString {
throw_type_error(cx, "Invalid ByteString");
Err(())
} else {
Ok(ConversionResult::Success(
ByteString::new(char_vec.iter().map(|&c| c as u8).collect())))
Ok(ConversionResult::Success(ByteString::new(
char_vec.iter().map(|&c| c as u8).collect(),
)))
}
}
}
impl ToJSValConvertible for Reflector {
unsafe fn to_jsval(&self, cx: *mut JSContext, mut rval: MutableHandleValue) {
let obj = self.get_jsobject().get();
@ -389,10 +409,12 @@ pub unsafe fn get_dom_class(obj: *mut JSObject) -> Result<&'static DOMClass, ()>
/// not an object for a DOM object of the given type (as defined by the
/// proto_id and proto_depth).
#[inline]
pub unsafe fn private_from_proto_check<F>(mut obj: *mut JSObject,
proto_check: F)
-> Result<*const libc::c_void, ()>
where F: Fn(&'static DOMClass) -> bool
pub unsafe fn private_from_proto_check<F>(
mut obj: *mut JSObject,
proto_check: F,
) -> Result<*const libc::c_void, ()>
where
F: Fn(&'static DOMClass) -> bool,
{
let dom_class = get_dom_class(obj).or_else(|_| {
if IsWrapper(obj) {
@ -423,11 +445,10 @@ pub unsafe fn private_from_proto_check<F>(mut obj: *mut JSObject,
/// Get a `*const T` for a DOM object accessible from a `JSObject`.
pub fn native_from_object<T>(obj: *mut JSObject) -> Result<*const T, ()>
where T: DomObject + IDLInterface
where
T: DomObject + IDLInterface,
{
unsafe {
private_from_proto_check(obj, T::derives).map(|ptr| ptr as *const T)
}
unsafe { private_from_proto_check(obj, T::derives).map(|ptr| ptr as *const T) }
}
/// Get a `DomRoot<T>` for the given DOM object, unwrapping any wrapper
@ -437,7 +458,8 @@ pub fn native_from_object<T>(obj: *mut JSObject) -> Result<*const T, ()>
/// not a reflector for a DOM object of the given type (as defined by the
/// proto_id and proto_depth).
pub fn root_from_object<T>(obj: *mut JSObject) -> Result<DomRoot<T>, ()>
where T: DomObject + IDLInterface
where
T: DomObject + IDLInterface,
{
native_from_object(obj).map(|ptr| unsafe { DomRoot::from_ref(&*ptr) })
}
@ -445,7 +467,8 @@ pub fn root_from_object<T>(obj: *mut JSObject) -> Result<DomRoot<T>, ()>
/// Get a `*const T` for a DOM object accessible from a `HandleValue`.
/// Caller is responsible for throwing a JS exception if needed in case of error.
pub fn native_from_handlevalue<T>(v: HandleValue) -> Result<*const T, ()>
where T: DomObject + IDLInterface
where
T: DomObject + IDLInterface,
{
if !v.get().is_object() {
return Err(());
@ -456,7 +479,8 @@ pub fn native_from_handlevalue<T>(v: HandleValue) -> Result<*const T, ()>
/// Get a `DomRoot<T>` for a DOM object accessible from a `HandleValue`.
/// Caller is responsible for throwing a JS exception if needed in case of error.
pub fn root_from_handlevalue<T>(v: HandleValue) -> Result<DomRoot<T>, ()>
where T: DomObject + IDLInterface
where
T: DomObject + IDLInterface,
{
if !v.get().is_object() {
return Err(());
@ -466,7 +490,8 @@ pub fn root_from_handlevalue<T>(v: HandleValue) -> Result<DomRoot<T>, ()>
/// Get a `DomRoot<T>` for a DOM object accessible from a `HandleObject`.
pub fn root_from_handleobject<T>(obj: HandleObject) -> Result<DomRoot<T>, ()>
where T: DomObject + IDLInterface
where
T: DomObject + IDLInterface,
{
root_from_object(obj.get())
}
@ -487,12 +512,12 @@ pub unsafe fn is_array_like(cx: *mut JSContext, value: HandleValue) -> bool {
}
/// Get a property from a JS object.
pub unsafe fn get_property_jsval(cx: *mut JSContext,
object: HandleObject,
name: &str,
mut rval: MutableHandleValue)
-> Fallible<()>
{
pub unsafe fn get_property_jsval(
cx: *mut JSContext,
object: HandleObject,
name: &str,
mut rval: MutableHandleValue,
) -> Fallible<()> {
rval.set(UndefinedValue());
let cname = match ffi::CString::new(name) {
Ok(cname) => cname,
@ -506,12 +531,14 @@ pub unsafe fn get_property_jsval(cx: *mut JSContext,
}
/// Get a property from a JS object, and convert it to a Rust value.
pub unsafe fn get_property<T>(cx: *mut JSContext,
object: HandleObject,
name: &str,
option: T::Config)
-> Fallible<Option<T>> where
T: FromJSValConvertible
pub unsafe fn get_property<T>(
cx: *mut JSContext,
object: HandleObject,
name: &str,
option: T::Config,
) -> Fallible<Option<T>>
where
T: FromJSValConvertible,
{
debug!("Getting property {}.", name);
rooted!(in(cx) let mut result = UndefinedValue());