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LibJS: Implement ECMA-402 BigInt.prototype.toLocaleString

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Timothy Flynn 2022-01-30 13:11:19 -05:00 • committed by Linus Groh
parent d6e926e5b1
commit 687276fc38
2 changed files with 95 additions and 1 deletions
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17
Userland/Libraries/LibJS/Runtime/BigIntPrototype.cpp
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@ -6,11 +6,14 @@
#include <AK/Function.h>
#include <AK/TypeCasts.h>
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/BigIntObject.h>
#include <LibJS/Runtime/BigIntPrototype.h>
#include <LibJS/Runtime/Completion.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/NumberFormat.h>
#include <LibJS/Runtime/Intl/NumberFormatConstructor.h>
namespace JS {
@ -61,9 +64,21 @@ JS_DEFINE_NATIVE_FUNCTION(BigIntPrototype::to_string)
}
// 21.2.3.2 BigInt.prototype.toLocaleString ( [ reserved1 [ , reserved2 ] ] ), https://tc39.es/ecma262/#sec-bigint.prototype.tolocalestring
// 19.3.1 BigInt.prototype.toLocaleString ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sup-bigint.prototype.tolocalestring
JS_DEFINE_NATIVE_FUNCTION(BigIntPrototype::to_locale_string)
{
return to_string(vm, global_object);
auto locales = vm.argument(0);
auto options = vm.argument(1);
// 1. Let x be ? thisBigIntValue(this value).
auto* bigint = TRY(this_bigint_value(global_object, vm.this_value(global_object)));
// 2. Let numberFormat be ? Construct(%NumberFormat%, « locales, options »).
auto* number_format = static_cast<Intl::NumberFormat*>(TRY(construct(global_object, *global_object.intl_number_format_constructor(), locales, options)));
// 3. Return ? FormatNumeric(numberFormat, x).
auto formatted = Intl::format_numeric(global_object, *number_format, bigint);
return js_string(vm, move(formatted));
}
// 21.2.3.4 BigInt.prototype.valueOf ( ), https://tc39.es/ecma262/#sec-bigint.prototype.valueof