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Use the conversion traits from js.

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This commit is contained in:
Ms2ger 2015-11-09 16:55:58 +01:00
parent acb24e80b8
commit 6d2ae85c1f
15 changed files with 285 additions and 647 deletions
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50
components/script/devtools.rs
View file

@ -28,33 +28,37 @@ use uuid::Uuid;
#[allow(unsafe_code)]
pub fn handle_evaluate_js(global: &GlobalRef, eval: String, reply: IpcSender<EvaluateJSReply>) {
let cx = global.get_cx();
let mut rval = RootedValue::new(cx, UndefinedValue());
global.evaluate_js_on_global_with_result(&eval, rval.handle_mut());
// global.get_cx() returns a valid `JSContext` pointer, so this is safe.
let result = unsafe {
let cx = global.get_cx();
let mut rval = RootedValue::new(cx, UndefinedValue());
global.evaluate_js_on_global_with_result(&eval, rval.handle_mut());
reply.send(if rval.ptr.is_undefined() {
EvaluateJSReply::VoidValue
} else if rval.ptr.is_boolean() {
EvaluateJSReply::BooleanValue(rval.ptr.to_boolean())
} else if rval.ptr.is_double() || rval.ptr.is_int32() {
EvaluateJSReply::NumberValue(
FromJSValConvertible::from_jsval(cx, rval.handle(), ()).unwrap())
} else if rval.ptr.is_string() {
EvaluateJSReply::StringValue(jsstring_to_str(cx, rval.ptr.to_string()).0)
} else if rval.ptr.is_null() {
EvaluateJSReply::NullValue
} else {
assert!(rval.ptr.is_object());
if rval.ptr.is_undefined() {
EvaluateJSReply::VoidValue
} else if rval.ptr.is_boolean() {
EvaluateJSReply::BooleanValue(rval.ptr.to_boolean())
} else if rval.ptr.is_double() || rval.ptr.is_int32() {
EvaluateJSReply::NumberValue(
FromJSValConvertible::from_jsval(cx, rval.handle(), ()).unwrap())
} else if rval.ptr.is_string() {
EvaluateJSReply::StringValue(jsstring_to_str(cx, rval.ptr.to_string()).0)
} else if rval.ptr.is_null() {
EvaluateJSReply::NullValue
} else {
assert!(rval.ptr.is_object());
let obj = RootedObject::new(cx, rval.ptr.to_object());
let class_name = unsafe { CStr::from_ptr(ObjectClassName(cx, obj.handle())) };
let class_name = str::from_utf8(class_name.to_bytes()).unwrap();
let obj = RootedObject::new(cx, rval.ptr.to_object());
let class_name = CStr::from_ptr(ObjectClassName(cx, obj.handle()));
let class_name = str::from_utf8(class_name.to_bytes()).unwrap();
EvaluateJSReply::ActorValue {
class: class_name.to_owned(),
uuid: Uuid::new_v4().to_string(),
EvaluateJSReply::ActorValue {
class: class_name.to_owned(),
uuid: Uuid::new_v4().to_string(),
}
}
}).unwrap();
};
reply.send(result).unwrap();
}
pub fn handle_get_root_node(page: &Rc<Page>, pipeline: PipelineId, reply: IpcSender<NodeInfo>) {

44
components/script/dom/bindings/codegen/CodegenRust.py
View file

@ -3413,7 +3413,7 @@ pub const strings: &'static [&'static str] = &[
];
impl ToJSValConvertible for super::%s {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
strings[*self as usize].to_jsval(cx, rval);
}
}
@ -3534,7 +3534,7 @@ pub enum %s {
}
impl ToJSValConvertible for %s {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
match *self {
%s
}
@ -3644,12 +3644,12 @@ class CGUnionConversionStruct(CGThing):
names.append(name)
conversions.append(CGGeneric(
"unsafe { throw_not_in_union(cx, \"%s\"); }\n"
"throw_not_in_union(cx, \"%s\");\n"
"Err(())" % ", ".join(names)))
method = CGWrapper(
CGIndenter(CGList(conversions, "\n\n")),
pre="fn from_jsval(cx: *mut JSContext,\n"
" value: HandleValue, _option: ()) -> Result<%s, ()> {\n" % self.type,
pre="unsafe fn from_jsval(cx: *mut JSContext,\n"
" value: HandleValue, _option: ()) -> Result<%s, ()> {\n" % self.type,
post="\n}")
return CGWrapper(
CGIndenter(CGList([
@ -3666,7 +3666,7 @@ class CGUnionConversionStruct(CGThing):
return CGWrapper(
CGIndenter(jsConversion, 4),
pre="fn TryConvertTo%s(cx: *mut JSContext, value: HandleValue) -> %s {\n" % (t.name, returnType),
pre="unsafe fn TryConvertTo%s(cx: *mut JSContext, value: HandleValue) -> %s {\n" % (t.name, returnType),
post="\n}")
def define(self):
@ -4967,8 +4967,8 @@ class CGDictionary(CGThing):
"}\n"
"\n"
"impl ToJSValConvertible for ${selfName} {\n"
" fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {\n"
" let obj = unsafe { RootedObject::new(cx, JS_NewObject(cx, ptr::null())) };\n"
" unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {\n"
" let obj = RootedObject::new(cx, JS_NewObject(cx, ptr::null()));\n"
"${insertMembers}"
" rval.set(ObjectOrNullValue(obj.ptr))\n"
" }\n"
@ -5459,7 +5459,7 @@ impl CallbackContainer for ${type} {
}
impl ToJSValConvertible for ${type} {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
self.callback().to_jsval(cx, rval);
}
}\
@ -5563,10 +5563,10 @@ class CallbackMember(CGNativeMember):
"${convertArgs}"
"${doCall}"
"${returnResult}").substitute(replacements)
return CGList([
return CGWrapper(CGIndenter(CGList([
CGGeneric(pre),
CGGeneric(body),
], "\n").define()
], "\n"), 4), pre="unsafe {\n", post="\n}").define()
def getResultConversion(self):
replacements = {
@ -5709,15 +5709,13 @@ class CallbackMethod(CallbackMember):
replacements["argc"] = "0"
return string.Template(
"${getCallable}"
"let ok = unsafe {\n"
" let rootedThis = RootedObject::new(cx, ${thisObj});\n"
" JS_CallFunctionValue(\n"
" cx, rootedThis.handle(), callable.handle(),\n"
" &HandleValueArray {\n"
" length_: ${argc} as ::libc::size_t,\n"
" elements_: ${argv}\n"
" }, rval.handle_mut())\n"
"};\n"
"let rootedThis = RootedObject::new(cx, ${thisObj});\n"
"let ok = JS_CallFunctionValue(\n"
" cx, rootedThis.handle(), callable.handle(),\n"
" &HandleValueArray {\n"
" length_: ${argc} as ::libc::size_t,\n"
" elements_: ${argv}\n"
" }, rval.handle_mut());\n"
"if !ok {\n"
" return Err(JSFailed);\n"
"}\n").substitute(replacements)
@ -5732,7 +5730,7 @@ class CallCallback(CallbackMethod):
return "aThisObj.get()"
def getCallableDecl(self):
return "let callable = RootedValue::new(cx, ObjectValue(unsafe {&*self.parent.callback()}));\n"
return "let callable = RootedValue::new(cx, ObjectValue(&*self.parent.callback()));\n"
class CallbackOperationBase(CallbackMethod):
@ -5762,11 +5760,11 @@ class CallbackOperationBase(CallbackMethod):
if not self.singleOperation:
return 'JS::Rooted<JS::Value> callable(cx);\n' + getCallableFromProp
return (
'let isCallable = unsafe { IsCallable(self.parent.callback()) };\n'
'let isCallable = IsCallable(self.parent.callback());\n'
'let callable =\n' +
CGIndenter(
CGIfElseWrapper('isCallable',
CGGeneric('unsafe { RootedValue::new(cx, ObjectValue(&*self.parent.callback())) }'),
CGGeneric('RootedValue::new(cx, ObjectValue(&*self.parent.callback()))'),
CGGeneric(getCallableFromProp))).define() + ';\n')

569
components/script/dom/bindings/conversions.rs
View file

@ -39,26 +39,23 @@ use dom::bindings::reflector::{Reflectable, Reflector};
use dom::bindings::str::{ByteString, USVString};
use dom::bindings::utils::DOMClass;
use js;
pub use js::conversions::{FromJSValConvertible, ToJSValConvertible, ConversionBehavior};
use js::error::throw_type_error;
use js::glue::{GetProxyPrivate, IsWrapper, RUST_JS_NumberValue};
use js::glue::{GetProxyPrivate, IsWrapper};
use js::glue::{RUST_JSID_IS_STRING, RUST_JSID_TO_STRING, UnwrapObject};
use js::jsapi::{HandleId, HandleObject, HandleValue, JS_GetClass};
use js::jsapi::{JSClass, JSContext, JSObject, JSString, MutableHandleValue};
use js::jsapi::{JSClass, JSContext, JSObject, MutableHandleValue};
use js::jsapi::{JS_GetLatin1StringCharsAndLength, JS_GetReservedSlot};
use js::jsapi::{JS_GetTwoByteStringCharsAndLength, JS_NewStringCopyN};
use js::jsapi::{JS_NewArrayObject1, JS_DefineElement, RootedValue, RootedObject};
use js::jsapi::{JS_NewUCStringCopyN, JS_StringHasLatin1Chars, JS_WrapValue};
use js::jsval::{BooleanValue, Int32Value, NullValue, UInt32Value, UndefinedValue};
use js::jsval::{JSVal, ObjectOrNullValue, ObjectValue, StringValue};
use js::rust::{ToBoolean, ToNumber, ToString, ToUint16};
use js::rust::{ToInt32, ToUint32};
use js::rust::{ToInt64, ToUint64};
use js::jsapi::{JS_StringHasLatin1Chars, JS_WrapValue};
use js::jsval::{ObjectValue, StringValue};
use js::rust::ToString;
use libc;
use num::Float;
use num::traits::{Bounded, Zero};
use std::rc::Rc;
use std::{char, ptr, slice};
use util::str::DOMString;
use std::{ptr, slice};
use util::str::{DOMString};
pub use util::str::{StringificationBehavior, jsstring_to_str};
trait As<O>: Copy {
fn cast(self) -> O;
@ -111,290 +108,9 @@ pub trait IDLInterface {
#[rustc_on_unimplemented = "The IDL interface `{Self}` is not derived from `{T}`."]
pub trait DerivedFrom<T: Castable>: Castable {}
/// A trait to convert Rust types to `JSVal`s.
pub trait ToJSValConvertible {
/// Convert `self` to a `JSVal`. JSAPI failure causes a task failure.
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue);
}
/// A trait to convert `JSVal`s to Rust types.
pub trait FromJSValConvertible: Sized {
/// Optional configurable behaviour switch; use () for no configuration.
type Config;
/// Convert `val` to type `Self`.
/// Optional configuration of type `T` can be passed as the `option`
/// argument.
/// If it returns `Err(())`, a JSAPI exception is pending.
fn from_jsval(cx: *mut JSContext, val: HandleValue, option: Self::Config) -> Result<Self, ()>;
}
/// Behavior for converting out-of-range integers.
#[derive(PartialEq, Eq)]
pub enum ConversionBehavior {
/// Wrap into the integer's range.
Default,
/// Throw an exception.
EnforceRange,
/// Clamp into the integer's range.
Clamp
}
/// Try to cast the number to a smaller type, but
/// if it doesn't fit, it will return an error.
fn enforce_range<D>(cx: *mut JSContext, d: f64) -> Result<D, ()>
where D: Bounded + As<f64>,
f64: As<D>
{
if d.is_infinite() {
unsafe { throw_type_error(cx, "value out of range in an EnforceRange argument") };
return Err(());
}
let rounded = d.round();
if D::min_value().cast() <= rounded && rounded <= D::max_value().cast() {
Ok(rounded.cast())
} else {
unsafe { throw_type_error(cx, "value out of range in an EnforceRange argument") };
Err(())
}
}
/// Try to cast the number to a smaller type, but if it doesn't fit,
/// round it to the MAX or MIN of the source type before casting it to
/// the destination type.
fn clamp_to<D>(d: f64) -> D
where D: Bounded + As<f64> + Zero,
f64: As<D>
{
if d.is_nan() {
D::zero()
} else if d > D::max_value().cast() {
D::max_value()
} else if d < D::min_value().cast() {
D::min_value()
} else {
d.cast()
}
}
//http://heycam.github.io/webidl/#es-void
impl ToJSValConvertible for () {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(UndefinedValue());
}
}
impl ToJSValConvertible for JSVal {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(*self);
if unsafe { !JS_WrapValue(cx, rval) } {
panic!("JS_WrapValue failed.");
}
}
}
impl ToJSValConvertible for HandleValue {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(self.get());
if unsafe { !JS_WrapValue(cx, rval) } {
panic!("JS_WrapValue failed.");
}
}
}
#[inline]
unsafe fn convert_int_from_jsval<T, M>(cx: *mut JSContext, value: HandleValue,
option: ConversionBehavior,
convert_fn: unsafe fn(*mut JSContext, HandleValue) -> Result<M, ()>)
-> Result<T, ()>
where T: Bounded + Zero + As<f64>,
M: Zero + As<T>,
f64: As<T>
{
match option {
ConversionBehavior::Default => Ok(try!(convert_fn(cx, value)).cast()),
ConversionBehavior::EnforceRange => enforce_range(cx, try!(ToNumber(cx, value))),
ConversionBehavior::Clamp => Ok(clamp_to(try!(ToNumber(cx, value)))),
}
}
//http://heycam.github.io/webidl/#es-boolean
impl ToJSValConvertible for bool {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(BooleanValue(*self));
}
}
//http://heycam.github.io/webidl/#es-boolean
impl FromJSValConvertible for bool {
type Config = ();
fn from_jsval(_cx: *mut JSContext, val: HandleValue, _option: ()) -> Result<bool, ()> {
Ok(unsafe { ToBoolean(val) })
}
}
//http://heycam.github.io/webidl/#es-byte
impl ToJSValConvertible for i8 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(Int32Value(*self as i32));
}
}
//http://heycam.github.io/webidl/#es-byte
impl FromJSValConvertible for i8 {
type Config = ConversionBehavior;
fn from_jsval(cx: *mut JSContext, val: HandleValue, option: ConversionBehavior) -> Result<i8, ()> {
unsafe { convert_int_from_jsval(cx, val, option, ToInt32) }
}
}
//http://heycam.github.io/webidl/#es-octet
impl ToJSValConvertible for u8 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(Int32Value(*self as i32));
}
}
//http://heycam.github.io/webidl/#es-octet
impl FromJSValConvertible for u8 {
type Config = ConversionBehavior;
fn from_jsval(cx: *mut JSContext, val: HandleValue, option: ConversionBehavior) -> Result<u8, ()> {
unsafe { convert_int_from_jsval(cx, val, option, ToInt32) }
}
}
//http://heycam.github.io/webidl/#es-short
impl ToJSValConvertible for i16 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(Int32Value(*self as i32));
}
}
//http://heycam.github.io/webidl/#es-short
impl FromJSValConvertible for i16 {
type Config = ConversionBehavior;
fn from_jsval(cx: *mut JSContext, val: HandleValue, option: ConversionBehavior) -> Result<i16, ()> {
unsafe { convert_int_from_jsval(cx, val, option, ToInt32) }
}
}
//http://heycam.github.io/webidl/#es-unsigned-short
impl ToJSValConvertible for u16 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(Int32Value(*self as i32));
}
}
//http://heycam.github.io/webidl/#es-unsigned-short
impl FromJSValConvertible for u16 {
type Config = ConversionBehavior;
fn from_jsval(cx: *mut JSContext, val: HandleValue, option: ConversionBehavior) -> Result<u16, ()> {
unsafe { convert_int_from_jsval(cx, val, option, ToUint16) }
}
}
//http://heycam.github.io/webidl/#es-long
impl ToJSValConvertible for i32 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(Int32Value(*self));
}
}
//http://heycam.github.io/webidl/#es-long
impl FromJSValConvertible for i32 {
type Config = ConversionBehavior;
fn from_jsval(cx: *mut JSContext, val: HandleValue, option: ConversionBehavior) -> Result<i32, ()> {
unsafe { convert_int_from_jsval(cx, val, option, ToInt32) }
}
}
//http://heycam.github.io/webidl/#es-unsigned-long
impl ToJSValConvertible for u32 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(UInt32Value(*self));
}
}
//http://heycam.github.io/webidl/#es-unsigned-long
impl FromJSValConvertible for u32 {
type Config = ConversionBehavior;
fn from_jsval(cx: *mut JSContext, val: HandleValue, option: ConversionBehavior) -> Result<u32, ()> {
unsafe { convert_int_from_jsval(cx, val, option, ToUint32) }
}
}
//http://heycam.github.io/webidl/#es-long-long
impl ToJSValConvertible for i64 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
unsafe {
rval.set(RUST_JS_NumberValue(*self as f64));
}
}
}
//http://heycam.github.io/webidl/#es-long-long
impl FromJSValConvertible for i64 {
type Config = ConversionBehavior;
fn from_jsval(cx: *mut JSContext, val: HandleValue, option: ConversionBehavior) -> Result<i64, ()> {
unsafe { convert_int_from_jsval(cx, val, option, ToInt64) }
}
}
//http://heycam.github.io/webidl/#es-unsigned-long-long
impl ToJSValConvertible for u64 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
unsafe {
rval.set(RUST_JS_NumberValue(*self as f64));
}
}
}
//http://heycam.github.io/webidl/#es-unsigned-long-long
impl FromJSValConvertible for u64 {
type Config = ConversionBehavior;
fn from_jsval(cx: *mut JSContext, val: HandleValue, option: ConversionBehavior) -> Result<u64, ()> {
unsafe { convert_int_from_jsval(cx, val, option, ToUint64) }
}
}
//http://heycam.github.io/webidl/#es-float
impl ToJSValConvertible for f32 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
unsafe {
rval.set(RUST_JS_NumberValue(*self as f64));
}
}
}
//http://heycam.github.io/webidl/#es-float
impl FromJSValConvertible for f32 {
type Config = ();
fn from_jsval(cx: *mut JSContext, val: HandleValue, _option: ()) -> Result<f32, ()> {
let result = unsafe { ToNumber(cx, val) };
result.map(|f| f as f32)
}
}
//http://heycam.github.io/webidl/#es-double
impl ToJSValConvertible for f64 {
fn to_jsval(&self, _cx: *mut JSContext, rval: MutableHandleValue) {
unsafe {
rval.set(RUST_JS_NumberValue(*self));
}
}
}
//http://heycam.github.io/webidl/#es-double
impl FromJSValConvertible for f64 {
type Config = ();
fn from_jsval(cx: *mut JSContext, val: HandleValue, _option: ()) -> Result<f64, ()> {
unsafe { ToNumber(cx, val) }
}
}
impl<T: Float + ToJSValConvertible> ToJSValConvertible for Finite<T> {
#[inline]
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
let value = **self;
value.to_jsval(cx, rval);
}
@ -403,109 +119,18 @@ impl<T: Float + ToJSValConvertible> ToJSValConvertible for Finite<T> {
impl<T: Float + FromJSValConvertible<Config=()>> FromJSValConvertible for Finite<T> {
type Config = ();
fn from_jsval(cx: *mut JSContext, value: HandleValue, option: ()) -> Result<Finite<T>, ()> {
unsafe fn from_jsval(cx: *mut JSContext, value: HandleValue, option: ()) -> Result<Finite<T>, ()> {
let result = try!(FromJSValConvertible::from_jsval(cx, value, option));
match Finite::new(result) {
Some(v) => Ok(v),
None => {
unsafe { throw_type_error(cx, "this argument is not a finite floating-point value") };
throw_type_error(cx, "this argument is not a finite floating-point value");
Err(())
},
}
}
}
impl ToJSValConvertible for str {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
let mut string_utf16: Vec<u16> = Vec::with_capacity(self.len());
unsafe {
string_utf16.extend(self.utf16_units());
let jsstr = JS_NewUCStringCopyN(cx, string_utf16.as_ptr(),
string_utf16.len() as libc::size_t);
if jsstr.is_null() {
panic!("JS_NewUCStringCopyN failed");
}
rval.set(StringValue(&*jsstr));
}
}
}
//http://heycam.github.io/webidl/#es-DOMString
impl ToJSValConvertible for String {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
(**self).to_jsval(cx, rval);
}
}
//http://heycam.github.io/webidl/#es-DOMString
impl ToJSValConvertible for DOMString {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
(**self).to_jsval(cx, rval);
}
}
/// Behavior for stringification of `JSVal`s.
#[derive(PartialEq)]
pub enum StringificationBehavior {
/// Convert `null` to the string `"null"`.
Default,
/// Convert `null` to the empty string.
Empty,
}
/// Convert the given `JSString` to a `DOMString`. Fails if the string does not
/// contain valid UTF-16.
pub fn jsstring_to_str(cx: *mut JSContext, s: *mut JSString) -> DOMString {
let mut length = 0;
let latin1 = unsafe { JS_StringHasLatin1Chars(s) };
DOMString(if latin1 {
let chars = unsafe {
JS_GetLatin1StringCharsAndLength(cx, ptr::null(), s, &mut length)
};
assert!(!chars.is_null());
let mut buf = String::with_capacity(length as usize);
for i in 0..(length as isize) {
unsafe {
buf.push(*chars.offset(i) as char);
}
}
buf
} else {
let chars = unsafe {
JS_GetTwoByteStringCharsAndLength(cx, ptr::null(), s, &mut length)
};
assert!(!chars.is_null());
let potentially_ill_formed_utf16 = unsafe {
slice::from_raw_parts(chars as *const u16, length as usize)
};
let mut s = String::with_capacity(length as usize);
for item in char::decode_utf16(potentially_ill_formed_utf16.iter().cloned()) {
match item {
Ok(c) => s.push(c),
Err(_) => {
// FIXME: Add more info like document URL in the message?
macro_rules! message {
() => {
"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 ::util::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."));
}
}
}
}
s
})
}
/// Convert the given `jsid` to a `DOMString`. Fails if the `jsid` is not a
/// string, or if the string does not contain valid UTF-16.
pub fn jsid_to_str(cx: *mut JSContext, id: HandleId) -> DOMString {
@ -515,30 +140,9 @@ pub fn jsid_to_str(cx: *mut JSContext, id: HandleId) -> DOMString {
}
}
//http://heycam.github.io/webidl/#es-DOMString
impl FromJSValConvertible for DOMString {
type Config = StringificationBehavior;
fn from_jsval(cx: *mut JSContext, value: HandleValue,
null_behavior: StringificationBehavior)
-> Result<DOMString, ()> {
if null_behavior == StringificationBehavior::Empty &&
value.get().is_null() {
Ok(DOMString::new())
} else {
let jsstr = unsafe { ToString(cx, value) };
if jsstr.is_null() {
debug!("ToString failed");
Err(())
} else {
Ok(jsstring_to_str(cx, jsstr))
}
}
}
}
//http://heycam.github.io/webidl/#es-USVString
impl ToJSValConvertible for USVString {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
self.0.to_jsval(cx, rval);
}
}
@ -546,89 +150,78 @@ impl ToJSValConvertible for USVString {
//http://heycam.github.io/webidl/#es-USVString
impl FromJSValConvertible for USVString {
type Config = ();
fn from_jsval(cx: *mut JSContext, value: HandleValue, _: ())
-> Result<USVString, ()> {
let jsstr = unsafe { ToString(cx, value) };
unsafe fn from_jsval(cx: *mut JSContext, value: HandleValue, _: ())
-> Result<USVString, ()> {
let jsstr = ToString(cx, value);
if jsstr.is_null() {
debug!("ToString failed");
return Err(());
}
let latin1 = unsafe { JS_StringHasLatin1Chars(jsstr) };
let latin1 = JS_StringHasLatin1Chars(jsstr);
if latin1 {
return Ok(USVString(jsstring_to_str(cx, jsstr).0));
}
unsafe {
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(USVString(String::from_utf16_lossy(char_vec)))
}
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(USVString(String::from_utf16_lossy(char_vec)))
}
}
//http://heycam.github.io/webidl/#es-ByteString
impl ToJSValConvertible for ByteString {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
unsafe {
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");
}
rval.set(StringValue(&*jsstr));
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
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");
}
rval.set(StringValue(&*jsstr));
}
}
//http://heycam.github.io/webidl/#es-ByteString
impl FromJSValConvertible for ByteString {
type Config = ();
fn from_jsval(cx: *mut JSContext, value: HandleValue, _option: ()) -> Result<ByteString, ()> {
let string = unsafe { ToString(cx, value) };
unsafe fn from_jsval(cx: *mut JSContext, value: HandleValue, _option: ()) -> Result<ByteString, ()> {
let string = ToString(cx, value);
if string.is_null() {
debug!("ToString failed");
return Err(());
}
let latin1 = unsafe { JS_StringHasLatin1Chars(string) };
let latin1 = JS_StringHasLatin1Chars(string);
if latin1 {
let mut length = 0;
let chars = unsafe {
JS_GetLatin1StringCharsAndLength(cx, ptr::null(),
string, &mut length)
};
let chars = JS_GetLatin1StringCharsAndLength(cx, ptr::null(),
string, &mut length);
assert!(!chars.is_null());
let char_slice = unsafe {
slice::from_raw_parts(chars as *mut u8, length as usize)
};
let char_slice = slice::from_raw_parts(chars as *mut u8, length as usize);
return Ok(ByteString::new(char_slice.to_vec()));
}
unsafe {
let mut length = 0;
let chars = JS_GetTwoByteStringCharsAndLength(cx, ptr::null(), string, &mut length);
let char_vec = slice::from_raw_parts(chars, length as usize);
let mut length = 0;
let chars = JS_GetTwoByteStringCharsAndLength(cx, ptr::null(), string, &mut length);
let char_vec = slice::from_raw_parts(chars, length as usize);
if char_vec.iter().any(|&c| c > 0xFF) {
throw_type_error(cx, "Invalid ByteString");
Err(())
} else {
Ok(ByteString::new(char_vec.iter().map(|&c| c as u8).collect()))
}
if char_vec.iter().any(|&c| c > 0xFF) {
throw_type_error(cx, "Invalid ByteString");
Err(())
} else {
Ok(ByteString::new(char_vec.iter().map(|&c| c as u8).collect()))
}
}
}
impl ToJSValConvertible for Reflector {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
let obj = self.get_jsobject().get();
assert!(!obj.is_null());
rval.set(ObjectValue(unsafe { &*obj }));
if unsafe { !JS_WrapValue(cx, rval) } {
rval.set(ObjectValue(&*obj));
if !JS_WrapValue(cx, rval) {
panic!("JS_WrapValue failed.");
}
}
@ -771,75 +364,7 @@ pub fn root_from_handleobject<T>(obj: HandleObject) -> Result<Root<T>, ()>
}
impl<T: Reflectable> ToJSValConvertible for Root<T> {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
self.reflector().to_jsval(cx, rval);
}
}
impl<'a, T: Reflectable> ToJSValConvertible for &'a T {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
self.reflector().to_jsval(cx, rval);
}
}
impl<T: ToJSValConvertible> ToJSValConvertible for Option<T> {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
match self {
&Some(ref value) => value.to_jsval(cx, rval),
&None => rval.set(NullValue()),
}
}
}
impl<T: ToJSValConvertible> ToJSValConvertible for Option<Rc<T>> {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
match self {
&Some(ref value) => (**value).to_jsval(cx, rval),
&None => rval.set(NullValue()),
}
}
}
impl<T: FromJSValConvertible> FromJSValConvertible for Option<T> {
type Config = T::Config;
fn from_jsval(cx: *mut JSContext, value: HandleValue, option: T::Config) -> Result<Option<T>, ()> {
if value.get().is_null_or_undefined() {
Ok(None)
} else {
let result: Result<T, ()> = FromJSValConvertible::from_jsval(cx, value, option);
result.map(Some)
}
}
}
impl<T: ToJSValConvertible> ToJSValConvertible for Vec<T> {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
let js_array = RootedObject::new(cx,
unsafe { JS_NewArrayObject1(cx, self.len() as libc::size_t) });
assert!(!js_array.handle().is_null());
for (index, obj) in self.iter().enumerate() {
let mut val = RootedValue::new(cx, UndefinedValue());
obj.to_jsval(cx, val.handle_mut());
unsafe {
assert!(JS_DefineElement(cx, js_array.handle(),
index as u32, val.handle(), js::JSPROP_ENUMERATE, None, None));
}
}
unsafe {
rval.set(ObjectValue(&*js_array.handle().get()));
}
}
}
//http://heycam.github.io/webidl/#es-object
impl ToJSValConvertible for *mut JSObject {
fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
rval.set(ObjectOrNullValue(*self));
unsafe {
assert!(JS_WrapValue(cx, rval));
}
}
}

13
components/script/dom/bindings/utils.rs
View file

@ -6,7 +6,7 @@
use dom::bindings::codegen::PrototypeList;
use dom::bindings::codegen::PrototypeList::MAX_PROTO_CHAIN_LENGTH;
use dom::bindings::conversions::{DOM_OBJECT_SLOT, is_dom_class, jsstring_to_str};
use dom::bindings::conversions::{DOM_OBJECT_SLOT, is_dom_class};
use dom::bindings::conversions::{private_from_proto_check, root_from_handleobject};
use dom::bindings::error::throw_invalid_this;
use dom::bindings::inheritance::TopTypeId;
@ -50,6 +50,7 @@ use std::default::Default;
use std::ffi::CString;
use std::ptr;
use util::mem::HeapSizeOf;
use util::str::jsstring_to_str;
/// Proxy handler for a WindowProxy.
#[allow(raw_pointer_derive)]
@ -441,11 +442,11 @@ pub fn get_array_index_from_id(_cx: *mut JSContext, id: HandleId) -> Option<u32>
/// Find the index of a string given by `v` in `values`.
/// Returns `Err(())` on JSAPI failure (there is a pending exception), and
/// `Ok(None)` if there was no matching string.
pub fn find_enum_string_index(cx: *mut JSContext,
v: HandleValue,
values: &[&'static str])
-> Result<Option<usize>, ()> {
let jsstr = unsafe { ToString(cx, v) };
pub unsafe fn find_enum_string_index(cx: *mut JSContext,
v: HandleValue,
values: &[&'static str])
-> Result<Option<usize>, ()> {
let jsstr = ToString(cx, v);
if jsstr.is_null() {
return Err(());
}

23
components/script/dom/htmliframeelement.rs
View file

@ -130,6 +130,7 @@ impl HTMLIFrameElement {
self.navigate_child_browsing_context(url);
}
#[allow(unsafe_code)]
pub fn dispatch_mozbrowser_event(&self, event: MozBrowserEvent) {
// TODO(gw): Support mozbrowser event types that have detail which is not a string.
// See https://developer.mozilla.org/en-US/docs/Web/API/Using_the_Browser_API
@ -138,16 +139,18 @@ impl HTMLIFrameElement {
if self.Mozbrowser() {
let window = window_from_node(self);
let cx = window.get_cx();
let _ar = JSAutoRequest::new(cx);
let _ac = JSAutoCompartment::new(cx, window.reflector().get_jsobject().get());
let mut detail = RootedValue::new(cx, UndefinedValue());
event.detail().to_jsval(cx, detail.handle_mut());
let custom_event = CustomEvent::new(GlobalRef::Window(window.r()),
DOMString(event.name().to_owned()),
true,
true,
detail.handle());
let custom_event = unsafe {
let cx = window.get_cx();
let _ar = JSAutoRequest::new(cx);
let _ac = JSAutoCompartment::new(cx, window.reflector().get_jsobject().get());
let mut detail = RootedValue::new(cx, UndefinedValue());
event.detail().to_jsval(cx, detail.handle_mut());
CustomEvent::new(GlobalRef::Window(window.r()),
DOMString(event.name().to_owned()),
true,
true,
detail.handle())
};
custom_event.upcast::<Event>().fire(self.upcast());
}
}

21
components/script/dom/webglrenderingcontext.rs
View file

@ -189,19 +189,22 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
receiver.recv().unwrap()
}
#[allow(unsafe_code)]
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
fn GetParameter(&self, cx: *mut JSContext, parameter: u32) -> JSVal {
// TODO(ecoal95): Implement the missing parameters from the spec
let mut rval = RootedValue::new(cx, UndefinedValue());
match parameter {
constants::VERSION =>
"WebGL 1.0".to_jsval(cx, rval.handle_mut()),
constants::RENDERER |
constants::VENDOR =>
"Mozilla/Servo".to_jsval(cx, rval.handle_mut()),
_ => rval.ptr = NullValue(),
unsafe {
let mut rval = RootedValue::new(cx, UndefinedValue());
match parameter {
constants::VERSION =>
"WebGL 1.0".to_jsval(cx, rval.handle_mut()),
constants::RENDERER |
constants::VENDOR =>
"Mozilla/Servo".to_jsval(cx, rval.handle_mut()),
_ => rval.ptr = NullValue(),
}
rval.ptr
}
rval.ptr
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3

38
components/script/dom/websocket.rs
View file

@ -570,32 +570,32 @@ impl Runnable for MessageReceivedTask {
// Step 2-5.
let global = ws.global.root();
let cx = global.r().get_cx();
let _ar = JSAutoRequest::new(cx);
let _ac = JSAutoCompartment::new(cx, ws.reflector().get_jsobject().get());
let mut message = RootedValue::new(cx, UndefinedValue());
match self.message {
MessageData::Text(text) => text.to_jsval(cx, message.handle_mut()),
MessageData::Binary(data) => {
match ws.binary_type.get() {
BinaryType::Blob => {
let blob = Blob::new(global.r(), Some(data), "");
blob.to_jsval(cx, message.handle_mut());
}
BinaryType::Arraybuffer => {
unsafe {
// global.get_cx() returns a valid `JSContext` pointer, so this is safe.
unsafe {
let cx = global.r().get_cx();
let _ar = JSAutoRequest::new(cx);
let _ac = JSAutoCompartment::new(cx, ws.reflector().get_jsobject().get());
let mut message = RootedValue::new(cx, UndefinedValue());
match self.message {
MessageData::Text(text) => text.to_jsval(cx, message.handle_mut()),
MessageData::Binary(data) => {
match ws.binary_type.get() {
BinaryType::Blob => {
let blob = Blob::new(global.r(), Some(data), "");
blob.to_jsval(cx, message.handle_mut());
}
BinaryType::Arraybuffer => {
let len = data.len() as uint32_t;
let buf = JS_NewArrayBuffer(cx, len);
let buf_data: *mut uint8_t = JS_GetArrayBufferData(buf, ptr::null());
ptr::copy_nonoverlapping(data.as_ptr(), buf_data, len as usize);
buf.to_jsval(cx, message.handle_mut());
}
}
}
},
},
}
MessageEvent::dispatch_jsval(ws.upcast(), global.r(), message.handle());
}
MessageEvent::dispatch_jsval(ws.upcast(), global.r(), message.handle());
}
}

3
components/script/dom/window.rs
View file

@ -574,8 +574,9 @@ impl WindowMethods for Window {
breakpoint();
}
#[allow(unsafe_code)]
fn WebdriverCallback(&self, cx: *mut JSContext, val: HandleValue) {
let rv = jsval_to_webdriver(cx, val);
let rv = unsafe { jsval_to_webdriver(cx, val) };
let opt_chan = self.webdriver_script_chan.borrow_mut().take();
if let Some(chan) = opt_chan {
chan.send(rv).unwrap();

44
components/script/dom/xmlhttprequest.rs
View file

@ -684,23 +684,23 @@ impl XMLHttpRequestMethods for XMLHttpRequest {
#[allow(unsafe_code)]
// https://xhr.spec.whatwg.org/#the-response-attribute
fn Response(&self, cx: *mut JSContext) -> JSVal {
let mut rval = RootedValue::new(cx, UndefinedValue());
match self.response_type.get() {
_empty | Text => {
let ready_state = self.ready_state.get();
if ready_state == XMLHttpRequestState::Done || ready_state == XMLHttpRequestState::Loading {
self.text_response().to_jsval(cx, rval.handle_mut());
} else {
"".to_jsval(cx, rval.handle_mut());
}
},
_ if self.ready_state.get() != XMLHttpRequestState::Done => {
return NullValue()
},
Json => {
let decoded = UTF_8.decode(&self.response.borrow(), DecoderTrap::Replace).unwrap().to_owned();
let decoded: Vec<u16> = decoded.utf16_units().collect();
unsafe {
unsafe {
let mut rval = RootedValue::new(cx, UndefinedValue());
match self.response_type.get() {
_empty | Text => {
let ready_state = self.ready_state.get();
if ready_state == XMLHttpRequestState::Done || ready_state == XMLHttpRequestState::Loading {
self.text_response().to_jsval(cx, rval.handle_mut());
} else {
"".to_jsval(cx, rval.handle_mut());
}
},
_ if self.ready_state.get() != XMLHttpRequestState::Done => {
return NullValue()
},
Json => {
let decoded = UTF_8.decode(&self.response.borrow(), DecoderTrap::Replace).unwrap().to_owned();
let decoded: Vec<u16> = decoded.utf16_units().collect();
if !JS_ParseJSON(cx,
decoded.as_ptr(),
decoded.len() as u32,
@ -709,13 +709,13 @@ impl XMLHttpRequestMethods for XMLHttpRequest {
return NullValue();
}
}
_ => {
// XXXManishearth handle other response types
self.response.borrow().to_jsval(cx, rval.handle_mut());
}
}
_ => {
// XXXManishearth handle other response types
self.response.borrow().to_jsval(cx, rval.handle_mut());
}
rval.ptr
}
rval.ptr
}
// https://xhr.spec.whatwg.org/#the-responsetext-attribute

1
components/script/lib.rs
View file

@ -12,7 +12,6 @@
#![feature(core_intrinsics)]
#![feature(custom_attribute)]
#![feature(custom_derive)]
#![feature(decode_utf16)]
#![feature(drain)]
#![feature(fnbox)]
#![feature(hashmap_hasher)]

12
components/script/script_task.rs
View file

@ -1683,11 +1683,13 @@ impl ScriptTask {
let script_source = String::from_utf8_lossy(&script_source_bytes);
// Script source is ready to be evaluated (11.)
let mut jsval = RootedValue::new(self.get_cx(), UndefinedValue());
window.evaluate_js_on_global_with_result(&script_source, jsval.handle_mut());
let strval = DOMString::from_jsval(self.get_cx(), jsval.handle(),
StringificationBehavior::Empty);
strval.unwrap_or(DOMString::new())
unsafe {
let mut jsval = RootedValue::new(self.get_cx(), UndefinedValue());
window.evaluate_js_on_global_with_result(&script_source, jsval.handle_mut());
let strval = DOMString::from_jsval(self.get_cx(), jsval.handle(),
StringificationBehavior::Empty);
strval.unwrap_or(DOMString::new())
}
} else {
DOMString::new()
};

16
components/script/webdriver_handlers.rs
View file

@ -40,7 +40,8 @@ fn find_node_by_unique_id(page: &Rc<Page>, pipeline: PipelineId, node_id: String
None
}
pub fn jsval_to_webdriver(cx: *mut JSContext, val: HandleValue) -> WebDriverJSResult {
#[allow(unsafe_code)]
pub unsafe fn jsval_to_webdriver(cx: *mut JSContext, val: HandleValue) -> WebDriverJSResult {
if val.get().is_undefined() {
Ok(WebDriverJSValue::Undefined)
} else if val.get().is_boolean() {
@ -58,17 +59,20 @@ pub fn jsval_to_webdriver(cx: *mut JSContext, val: HandleValue) -> WebDriverJSRe
}
}
#[allow(unsafe_code)]
pub fn handle_execute_script(page: &Rc<Page>,
pipeline: PipelineId,
eval: String,
reply: IpcSender<WebDriverJSResult>) {
let page = get_page(&*page, pipeline);
let window = page.window();
let cx = window.get_cx();
let mut rval = RootedValue::new(cx, UndefinedValue());
window.evaluate_js_on_global_with_result(&eval, rval.handle_mut());
reply.send(jsval_to_webdriver(cx, rval.handle())).unwrap();
let result = unsafe {
let cx = window.get_cx();
let mut rval = RootedValue::new(cx, UndefinedValue());
window.evaluate_js_on_global_with_result(&eval, rval.handle_mut());
jsval_to_webdriver(cx, rval.handle())
};
reply.send(result).unwrap();
}
pub fn handle_execute_async_script(page: &Rc<Page>,