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@ -21,7 +21,7 @@ mod tests; |
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use crate::{ |
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use crate::{ |
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builtins::BuiltIn, |
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builtins::BuiltIn, |
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gc::{Finalize, Trace}, |
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gc::{Finalize, Trace}, |
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object::ConstructorBuilder, |
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object::{ConstructorBuilder, FunctionBuilder}, |
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property::Attribute, |
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property::Attribute, |
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value::{RcString, RcSymbol, Value}, |
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value::{RcString, RcSymbol, Value}, |
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BoaProfiler, Context, Result, |
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BoaProfiler, Context, Result, |
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@ -241,6 +241,8 @@ impl BuiltIn for Symbol { |
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} |
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} |
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fn init(context: &mut Context) -> (&'static str, Value, Attribute) { |
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fn init(context: &mut Context) -> (&'static str, Value, Attribute) { |
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let _timer = BoaProfiler::global().start_event(Self::NAME, "init"); |
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// https://tc39.es/ecma262/#sec-well-known-symbols
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// https://tc39.es/ecma262/#sec-well-known-symbols
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let well_known_symbols = context.well_known_symbols(); |
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let well_known_symbols = context.well_known_symbols(); |
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@ -258,9 +260,14 @@ impl BuiltIn for Symbol { |
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let symbol_to_string_tag = well_known_symbols.to_string_tag_symbol(); |
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let symbol_to_string_tag = well_known_symbols.to_string_tag_symbol(); |
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let symbol_unscopables = well_known_symbols.unscopables_symbol(); |
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let symbol_unscopables = well_known_symbols.unscopables_symbol(); |
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let _timer = BoaProfiler::global().start_event(Self::NAME, "init"); |
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let attribute = Attribute::READONLY | Attribute::NON_ENUMERABLE | Attribute::PERMANENT; |
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let attribute = Attribute::READONLY | Attribute::NON_ENUMERABLE | Attribute::PERMANENT; |
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let get_description = FunctionBuilder::new(context, Self::get_description) |
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.name("get description") |
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.constructable(false) |
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.callable(true) |
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.build(); |
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let symbol_object = ConstructorBuilder::with_standard_object( |
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let symbol_object = ConstructorBuilder::with_standard_object( |
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context, |
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context, |
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Self::constructor, |
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Self::constructor, |
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@ -282,6 +289,12 @@ impl BuiltIn for Symbol { |
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.static_property("toStringTag", symbol_to_string_tag, attribute) |
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.static_property("toStringTag", symbol_to_string_tag, attribute) |
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.static_property("unscopables", symbol_unscopables, attribute) |
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.static_property("unscopables", symbol_unscopables, attribute) |
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.method(Self::to_string, "toString", 0) |
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.method(Self::to_string, "toString", 0) |
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.accessor( |
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"description", |
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Some(get_description), |
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None, |
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Attribute::CONFIGURABLE | Attribute::NON_ENUMERABLE, |
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) |
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.callable(true) |
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.callable(true) |
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.constructable(false) |
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.constructable(false) |
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.build(); |
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.build(); |
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@ -350,7 +363,7 @@ impl Symbol { |
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///
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///
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/// This method returns a string representing the specified `Symbol` object.
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/// This method returns a string representing the specified `Symbol` object.
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///
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///
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/// /// More information:
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/// More information:
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/// - [MDN documentation][mdn]
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/// - [MDN documentation][mdn]
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/// - [ECMAScript reference][spec]
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/// - [ECMAScript reference][spec]
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///
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///
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@ -362,4 +375,26 @@ impl Symbol { |
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let description = symbol.description().unwrap_or(""); |
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let description = symbol.description().unwrap_or(""); |
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Ok(Value::from(format!("Symbol({})", description))) |
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Ok(Value::from(format!("Symbol({})", description))) |
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} |
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} |
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/// `get Symbol.prototype.description`
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///
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/// This accessor returns the description of the `Symbol` object.
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///
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/// More information:
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/// - [MDN documentation][mdn]
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/// - [ECMAScript reference][spec]
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///
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/// [spec]: https://tc39.es/ecma262/#sec-symbol.prototype.description
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/// [mdn]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/description
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pub(crate) fn get_description( |
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this: &Value, |
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_: &[Value], |
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context: &mut Context, |
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) -> Result<Value> { |
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if let Some(ref description) = Self::this_symbol_value(this, context)?.description { |
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Ok(description.clone().into()) |
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} else { |
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Ok(Value::undefined()) |
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} |
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} |
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} |
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} |
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