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AK: Resolve format related circular dependencies properly.

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With this commit, <AK/Format.h> has a more supportive role and isn't
used directly.

Essentially, there now is a public 'vformat' function ('v' for vector)
which takes already type erased parameters. The name is choosen to
indicate that this function behaves similar to C-style functions taking
a va_list equivalent.

The interface for frontend users are now 'String::formatted' and
'StringBuilder::appendff'.
This commit is contained in:
asynts 2020-09-23 13:21:18 +02:00 • committed by Andreas Kling
parent 3224fb7d55
commit b7a4c4482f
8 changed files with 105 additions and 100 deletions
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34
AK/String.h
View file

@ -26,10 +26,10 @@
#pragma once
#include <AK/Format.h>
#include <AK/Forward.h>
#include <AK/RefPtr.h>
#include <AK/Stream.h>
#include <AK/StringBuilder.h>
#include <AK/StringImpl.h>
#include <AK/StringUtils.h>
#include <AK/Traits.h>
@ -239,6 +239,15 @@ public:
static String format(const char*, ...);
static String vformatted(StringView fmtstr, Span<const TypeErasedParameter>);
template<typename... Parameters>
static String formatted(StringView fmtstr, const Parameters&... parameters)
{
const auto type_erased_parameters = make_type_erased_parameters(parameters...);
return vformatted(fmtstr, type_erased_parameters);
}
template<typename T>
static String number(T);
@ -277,28 +286,7 @@ bool operator<=(const char*, const String&);
String escape_html_entities(const StringView& html);
inline InputStream& operator>>(InputStream& stream, String& string)
{
StringBuilder builder;
for (;;) {
char next_char;
stream >> next_char;
if (stream.has_any_error()) {
stream.set_fatal_error();
string = nullptr;
return stream;
}
if (next_char) {
builder.append(next_char);
} else {
string = builder.to_string();
return stream;
}
}
}
InputStream& operator>>(InputStream& stream, String& string);
}