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AK+Kernel+LibELF: Remove the need for IteratorDecision::Continue

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By constraining two implementations, the compiler will select the best
fitting one. All this will require is duplicating the implementation and
simplifying for the `void` case.

This constraining also informs both the caller and compiler by passing
the callback parameter types as part of the constraint
(e.g.: `IterationFunction<int>`).

Some `for_each` functions in LibELF only take functions which return
`void`. This is a minimal correctness check, as it removes one way for a
function to incompletely do something.

There seems to be a possible idiom where inside a lambda, a `return;` is
the same as `continue;` in a for-loop.
This commit is contained in:
Nicholas Baron 2021-05-16 02:36:52 -07:00 • committed by GitHub
parent bbaa463032
commit aa4d41fe2c
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25 changed files with 311 additions and 127 deletions
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2
Userland/Libraries/LibELF/Image.cpp
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@ -97,7 +97,6 @@ void Image::dump() const
dbgln(" offset: {:x}", program_header.offset());
dbgln(" flags: {:x}", program_header.flags());
dbgln(" }}");
return IterationDecision::Continue;
});
for (unsigned i = 0; i < header().e_shnum; ++i) {
@ -344,7 +343,6 @@ NEVER_INLINE void Image::sort_symbols() const
m_sorted_symbols.ensure_capacity(symbol_count());
for_each_symbol([this](const auto& symbol) {
m_sorted_symbols.append({ symbol.value(), symbol.name(), {}, symbol });
return IterationDecision::Continue;
});
quick_sort(m_sorted_symbols, [](auto& a, auto& b) {
return a.address < b.address;