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VariadicFormatParams: Use initialized data to create parent class

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Problem:
- m_data is being passed to the constructor of the parent class before
  it is initialized. This is not really a problem because the compiler
  knows the location and it is only a span being constructed, but it
  triggers a warning in clang for use-before-init.

Solution:
- Initialize using a default constructed array and then overwrite it
  inside the constructor after the member is initialized.
This commit is contained in:
Lenny Maiorani 2020-10-07 11:21:00 -04:00 committed by Andreas Kling
parent fcee80dd69
commit 9ae78c50fd
Notes: sideshowbarker 2024-07-19 01:59:35 +09:00 
Author: https://github.com/ldm5180
Commit: https://github.com/SerenityOS/serenity/commit/9ae78c50fd6
Pull-request: https://github.com/SerenityOS/serenity/pull/3708
1 changed files with 3 additions and 7 deletions
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10
AK/Format.h
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@ -164,13 +164,9 @@ private:
class TypeErasedFormatParams {
public:
explicit TypeErasedFormatParams(Span<const TypeErasedParameter> parameters)
: m_parameters(parameters)
{
}
Span<const TypeErasedParameter> parameters() const { return m_parameters; }
void set_parameters(Span<const TypeErasedParameter> parameters) { m_parameters = parameters; }
size_t take_next_index() { return m_next_index++; }
size_t decode(size_t value, size_t default_value = 0);
@ -195,9 +191,9 @@ public:
static_assert(sizeof...(Parameters) <= max_format_arguments);
explicit VariadicFormatParams(const Parameters&... parameters)
: TypeErasedFormatParams(m_data)
, m_data({ TypeErasedParameter { &parameters, TypeErasedParameter::get_type<Parameters>(), __format_value<Parameters> }... })
: m_data({ TypeErasedParameter { &parameters, TypeErasedParameter::get_type<Parameters>(), __format_value<Parameters> }... })
{
this->set_parameters(m_data);
}
private: