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@ -1,8 +1,5 @@
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//! Builtins live here, such as Object, String, Math, etc.
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// builtins module has a lot of built-in functions that need unnecessary_wraps
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#![allow(clippy::unnecessary_wraps)] |
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pub mod array; |
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pub mod bigint; |
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pub mod boolean; |
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@ -57,60 +54,86 @@ use crate::{
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Context, JsValue, |
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}; |
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/// Trait representing a global built-in object such as `Math`, `Object` or
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/// `String`.
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///
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/// This trait must be implemented for any global built-in accessible from
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/// Javascript.
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pub(crate) trait BuiltIn { |
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/// The binding name of the property.
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/// Binding name of the built-in inside the global object.
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///
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/// E.g. If you want access the properties of a `Complex` built-in
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/// with the name `Cplx` you must assign `"Cplx"` to this constant,
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/// making any property inside it accessible from Javascript as `Cplx.prop`
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const NAME: &'static str; |
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fn attribute() -> Attribute; |
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fn init(context: &mut Context) -> (&'static str, JsValue, Attribute); |
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/// Property attribute flags of the built-in.
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/// Check [Attribute] for more information.
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const ATTRIBUTE: Attribute; |
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/// Initialization code for the built-in.
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/// This is where the methods, properties, static methods and the constructor
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/// of a built-in must be initialized to be accessible from Javascript.
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fn init(context: &mut Context) -> JsValue; |
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} |
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/// Utility function that checks if a type implements `BuiltIn` before
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/// initializing it as a global built-in.
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#[inline] |
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fn init_builtin<B: BuiltIn>(context: &mut Context) { |
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let value = B::init(context); |
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let property = PropertyDescriptor::builder() |
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.value(value) |
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.writable(B::ATTRIBUTE.writable()) |
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.enumerable(B::ATTRIBUTE.enumerable()) |
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.configurable(B::ATTRIBUTE.configurable()); |
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context |
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.global_object() |
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.borrow_mut() |
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.insert(B::NAME, property); |
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} |
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/// Initializes builtin objects and functions
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/// Initializes built-in objects and functions
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#[inline] |
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pub fn init(context: &mut Context) { |
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let globals = [ |
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// Global properties.
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Undefined::init, |
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Infinity::init, |
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NaN::init, |
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GlobalThis::init, |
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BuiltInFunctionObject::init, |
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BuiltInObjectObject::init, |
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Math::init, |
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Json::init, |
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Array::init, |
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BigInt::init, |
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Boolean::init, |
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Date::init, |
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Map::init, |
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Number::init, |
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Set::init, |
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String::init, |
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RegExp::init, |
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Symbol::init, |
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Error::init, |
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RangeError::init, |
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ReferenceError::init, |
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TypeError::init, |
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SyntaxError::init, |
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EvalError::init, |
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UriError::init, |
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Reflect::init, |
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#[cfg(feature = "console")] |
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console::Console::init, |
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]; |
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macro_rules! globals { |
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($( $builtin:ty ),*) => { |
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$(init_builtin::<$builtin>(context) |
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);* |
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} |
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} |
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let global_object = context.global_object(); |
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globals! { |
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Undefined, |
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Infinity, |
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NaN, |
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GlobalThis, |
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BuiltInFunctionObject, |
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BuiltInObjectObject, |
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Math, |
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Json, |
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Array, |
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BigInt, |
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Boolean, |
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Date, |
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Map, |
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Number, |
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Set, |
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String, |
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RegExp, |
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Symbol, |
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Error, |
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RangeError, |
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ReferenceError, |
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TypeError, |
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SyntaxError, |
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EvalError, |
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UriError, |
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Reflect |
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}; |
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for init in &globals { |
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let (name, value, attribute) = init(context); |
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let property = PropertyDescriptor::builder() |
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.value(value) |
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.writable(attribute.writable()) |
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.enumerable(attribute.enumerable()) |
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.configurable(attribute.configurable()); |
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global_object.borrow_mut().insert(name, property); |
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} |
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#[cfg(feature = "console")] |
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init_builtin::<console::Console>(context); |
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} |
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pub trait JsArgs { |
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jedel1043
3 years ago
committed by
GitHub