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Move WebIDL constants machinery to bindings::constant

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This commit is contained in:
Anthony Ramine 2016-09-02 12:35:29 +02:00
parent 109a297309
commit 51e46b11a3
4 changed files with 77 additions and 67 deletions
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61
components/script/dom/bindings/interface.rs
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@ -6,6 +6,7 @@
use dom::bindings::codegen::InterfaceObjectMap::Globals;
use dom::bindings::codegen::PrototypeList;
use dom::bindings::constant::{ConstantSpec, define_constants};
use dom::bindings::conversions::{DOM_OBJECT_SLOT, get_dom_class};
use dom::bindings::guard::Guard;
use dom::bindings::utils::{DOM_PROTOTYPE_SLOT, ProtoOrIfaceArray, get_proto_or_iface_array};
@ -14,7 +15,7 @@ use js::glue::{RUST_SYMBOL_TO_JSID, UncheckedUnwrapObject};
use js::jsapi::{Class, ClassOps, CompartmentOptions, GetGlobalForObjectCrossCompartment};
use js::jsapi::{GetWellKnownSymbol, HandleObject, HandleValue, JSAutoCompartment};
use js::jsapi::{JSClass, JSContext, JSFUN_CONSTRUCTOR, JSFunctionSpec, JSObject};
use js::jsapi::{JSPROP_ENUMERATE, JSPROP_PERMANENT, JSPROP_READONLY, JSPROP_RESOLVING};
use js::jsapi::{JSPROP_PERMANENT, JSPROP_READONLY, JSPROP_RESOLVING};
use js::jsapi::{JSPropertySpec, JSString, JSTracer, JSVersion, JS_AtomizeAndPinString};
use js::jsapi::{JS_DefineProperty, JS_DefineProperty1, JS_DefineProperty2};
use js::jsapi::{JS_DefineProperty4, JS_DefinePropertyById3, JS_FireOnNewGlobalObject};
@ -24,71 +25,15 @@ use js::jsapi::{JS_NewObject, JS_NewObjectWithUniqueType, JS_NewPlainObject};
use js::jsapi::{JS_NewStringCopyN, JS_SetReservedSlot, MutableHandleObject};
use js::jsapi::{MutableHandleValue, ObjectOps, OnNewGlobalHookOption, SymbolCode};
use js::jsapi::{TrueHandleValue, Value};
use js::jsval::{BooleanValue, DoubleValue, Int32Value, JSVal, NullValue};
use js::jsval::{PrivateValue, UInt32Value};
use js::jsval::{JSVal, PrivateValue};
use js::rust::{define_methods, define_properties};
use libc;
use std::ptr;
/// Representation of an IDL constant value.
#[derive(Clone)]
pub enum ConstantVal {
/// `long` constant.
IntVal(i32),
/// `unsigned long` constant.
UintVal(u32),
/// `double` constant.
DoubleVal(f64),
/// `boolean` constant.
BoolVal(bool),
/// `null` constant.
NullVal,
}
/// Representation of an IDL constant.
#[derive(Clone)]
pub struct ConstantSpec {
/// name of the constant.
pub name: &'static [u8],
/// value of the constant.
pub value: ConstantVal,
}
impl ConstantSpec {
/// Returns a `JSVal` that represents the value of this `ConstantSpec`.
pub fn get_value(&self) -> JSVal {
match self.value {
ConstantVal::NullVal => NullValue(),
ConstantVal::IntVal(i) => Int32Value(i),
ConstantVal::UintVal(u) => UInt32Value(u),
ConstantVal::DoubleVal(d) => DoubleValue(d),
ConstantVal::BoolVal(b) => BooleanValue(b),
}
}
}
/// A JSNative that cannot be null.
pub type NonNullJSNative =
unsafe extern "C" fn (arg1: *mut JSContext, arg2: libc::c_uint, arg3: *mut JSVal) -> bool;
/// Defines constants on `obj`.
/// Fails on JSAPI failure.
unsafe fn define_constants(
cx: *mut JSContext,
obj: HandleObject,
constants: &[ConstantSpec]) {
for spec in constants {
rooted!(in(cx) let value = spec.get_value());
assert!(JS_DefineProperty(cx,
obj,
spec.name.as_ptr() as *const libc::c_char,
value.handle(),
JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT,
None,
None));
}
}
unsafe extern "C" fn fun_to_string_hook(cx: *mut JSContext,
obj: HandleObject,
_indent: u32)