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LibJS/JIT: Add builtin for Math.floor()

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This commit is contained in:
Andreas Kling 2023-11-24 09:44:00 +01:00
parent 5e976d611e
commit 08590adf40
4 changed files with 28 additions and 7 deletions
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1
Userland/Libraries/LibJS/Bytecode/Builtins.h
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@ -16,6 +16,7 @@ namespace JS::Bytecode {
O(MathAbs, math_abs, Math, abs, 1) \
O(MathLog, math_log, Math, log, 1) \
O(MathPow, math_pow, Math, pow, 2) \
O(MathFloor, math_floor, Math, floor, 1) \
O(MathSqrt, math_sqrt, Math, sqrt, 1)
enum class Builtin {

13
Userland/Libraries/LibJS/JIT/Compiler.cpp
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@ -2663,6 +2663,19 @@ void Compiler::compile_builtin_math_pow(Assembler::Label&, Assembler::Label& end
m_assembler.jump(end);
}
static Value cxx_math_floor(VM& vm, Value, Value value)
{
return TRY_OR_SET_EXCEPTION(MathObject::floor_impl(vm, value));
}
void Compiler::compile_builtin_math_floor(Assembler::Label&, Assembler::Label& end)
{
native_call((void*)cxx_math_floor);
store_accumulator(RET);
check_exception();
m_assembler.jump(end);
}
void Compiler::compile_builtin_math_abs(Assembler::Label& slow_case, Assembler::Label& end)
{
branch_if_int32(ARG2, [&] {

12
Userland/Libraries/LibJS/Runtime/MathObject.cpp
View file

@ -32,7 +32,7 @@ void MathObject::initialize(Realm& realm)
define_native_function(realm, vm.names.abs, abs, 1, attr, Bytecode::Builtin::MathAbs);
define_native_function(realm, vm.names.random, random, 0, attr);
define_native_function(realm, vm.names.sqrt, sqrt, 1, attr, Bytecode::Builtin::MathSqrt);
define_native_function(realm, vm.names.floor, floor, 1, attr);
define_native_function(realm, vm.names.floor, floor, 1, attr, Bytecode::Builtin::MathFloor);
define_native_function(realm, vm.names.ceil, ceil, 1, attr);
define_native_function(realm, vm.names.round, round, 1, attr);
define_native_function(realm, vm.names.max, max, 2, attr);
@ -456,10 +456,10 @@ JS_DEFINE_NATIVE_FUNCTION(MathObject::expm1)
}
// 21.3.2.16 Math.floor ( x ), https://tc39.es/ecma262/#sec-math.floor
JS_DEFINE_NATIVE_FUNCTION(MathObject::floor)
ThrowCompletionOr<Value> MathObject::floor_impl(VM& vm, Value x)
{
// 1. Let n be ? ToNumber(x).
auto number = TRY(vm.argument(0).to_number(vm));
auto number = TRY(x.to_number(vm));
// 2. If n is not finite or n is either +0𝔽 or -0𝔽, return n.
if (!number.is_finite_number() || number.as_double() == 0)
@ -471,6 +471,12 @@ JS_DEFINE_NATIVE_FUNCTION(MathObject::floor)
return Value(::floor(number.as_double()));
}
// 21.3.2.16 Math.floor ( x ), https://tc39.es/ecma262/#sec-math.floor
JS_DEFINE_NATIVE_FUNCTION(MathObject::floor)
{
return floor_impl(vm, vm.argument(0));
}
// 21.3.2.17 Math.fround ( x ), https://tc39.es/ecma262/#sec-math.fround
JS_DEFINE_NATIVE_FUNCTION(MathObject::fround)
{

1
Userland/Libraries/LibJS/Runtime/MathObject.h
View file

@ -21,6 +21,7 @@ public:
static ThrowCompletionOr<Value> log_impl(VM&, Value);
static ThrowCompletionOr<Value> sqrt_impl(VM&, Value);
static ThrowCompletionOr<Value> pow_impl(VM&, Value base, Value exponent);
static ThrowCompletionOr<Value> floor_impl(VM&, Value);
private:
explicit MathObject(Realm&);