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LibJS: Add js_negative_infinity()

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Value(-js_infinity().as_double()) is kind of awkward.
This commit is contained in:
Linus Groh 2020-04-12 13:25:42 +01:00 • committed by Andreas Kling
parent f226746394
commit 97de93eed1
4 changed files with 17 additions and 12 deletions
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20
Libraries/LibJS/Runtime/MathObject.cpp
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@ -114,18 +114,18 @@ Value MathObject::round(Interpreter& interpreter)
Value MathObject::max(Interpreter& interpreter) Value MathObject::max(Interpreter& interpreter)
{ {
if (!interpreter.argument_count()) { if (!interpreter.argument_count())
return Value(-js_infinity().as_double()); return js_negative_infinity();
} else if (interpreter.argument_count() == 1) {
if (interpreter.argument_count() == 1)
return interpreter.argument(0).to_number(); return interpreter.argument(0).to_number();
} else {
Value max = interpreter.argument(0).to_number(); Value max = interpreter.argument(0).to_number();
for (size_t i = 1; i < interpreter.argument_count(); ++i) { for (size_t i = 1; i < interpreter.argument_count(); ++i) {
Value cur = interpreter.argument(i).to_number(); Value cur = interpreter.argument(i).to_number();
max = Value(cur.as_double() > max.as_double() ? cur : max); max = Value(cur.as_double() > max.as_double() ? cur : max);
}
return max;
} }
return max;
} }
Value MathObject::min(Interpreter& interpreter) Value MathObject::min(Interpreter& interpreter)

2
Libraries/LibJS/Runtime/NumberConstructor.cpp
View file

@ -45,7 +45,7 @@ NumberConstructor::NumberConstructor()
put("EPSILON", Value(EPSILON)); put("EPSILON", Value(EPSILON));
put("MAX_SAFE_INTEGER", Value(MAX_SAFE_INTEGER)); put("MAX_SAFE_INTEGER", Value(MAX_SAFE_INTEGER));
put("MIN_SAFE_INTEGER", Value(MIN_SAFE_INTEGER)); put("MIN_SAFE_INTEGER", Value(MIN_SAFE_INTEGER));
put("NEGATIVE_INFINITY", Value(-js_infinity().as_double())); put("NEGATIVE_INFINITY", js_negative_infinity());
put("POSITIVE_INFINITY", js_infinity()); put("POSITIVE_INFINITY", js_infinity());
put("NaN", js_nan()); put("NaN", js_nan());
} }

2
Libraries/LibJS/Runtime/Value.cpp
View file

@ -143,7 +143,7 @@ Value Value::to_number() const
if (string == "Infinity" || string == "+Infinity") if (string == "Infinity" || string == "+Infinity")
return js_infinity(); return js_infinity();
if (string == "-Infinity") if (string == "-Infinity")
return Value(-js_infinity().as_double()); return js_negative_infinity();
bool ok; bool ok;
//FIXME: Parse in a better way //FIXME: Parse in a better way
auto parsed_int = string.to_int(ok); auto parsed_int = string.to_int(ok);

5
Libraries/LibJS/Runtime/Value.h
View file

@ -182,6 +182,11 @@ inline Value js_infinity()
return Value(__builtin_huge_val()); return Value(__builtin_huge_val());
} }
inline Value js_negative_infinity()
{
return Value(-__builtin_huge_val());
}
Value greater_than(Value lhs, Value rhs); Value greater_than(Value lhs, Value rhs);
Value greater_than_equals(Value lhs, Value rhs); Value greater_than_equals(Value lhs, Value rhs);
Value less_than(Value lhs, Value rhs); Value less_than(Value lhs, Value rhs);