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LibJS: Add Value::is_nullish()

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This commit is contained in:
Andreas Kling
2020-10-02 16:00:15 +02:00
parent ef1b21004f
commit fa18baf3e8
9 changed files with 22 additions and 21 deletions
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4
Libraries/LibJS/AST.cpp
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@@ -126,7 +126,7 @@ CallExpression::ThisAndCallee CallExpression::compute_this_and_callee(Interprete
auto lookup_target = is_super_property_lookup ? interpreter.current_environment()->get_super_base() : member_expression.object().execute(interpreter, global_object);
if (interpreter.exception())
return {};
if (is_super_property_lookup && (lookup_target.is_null() || lookup_target.is_undefined())) {
if (is_super_property_lookup && lookup_target.is_nullish()) {
interpreter.vm().throw_exception<TypeError>(global_object, ErrorType::ObjectPrototypeNullOrUndefinedOnSuperPropertyAccess, lookup_target.to_string_without_side_effects().characters());
return {};
}
@@ -543,7 +543,7 @@ Value LogicalExpression::execute(Interpreter& interpreter, GlobalObject& global_
return rhs_result;
}
case LogicalOp::NullishCoalescing:
if (lhs_result.is_null() || lhs_result.is_undefined()) {
if (lhs_result.is_nullish()) {
auto rhs_result = m_rhs->execute(interpreter, global_object);
if (interpreter.exception())
return {};