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Don't return reference on copy assignment operators

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We prefer to prevent using chained assignment (`T a = b = c = T();`) as this
can lead to confusing code and subtle bugs.

According to https://en.wikipedia.org/wiki/Assignment_operator_(C%2B%2B), C++
allows any arbitrary return type, so this is standard compliant.

This could be re-assessed if/when we have an actual need for a behavior more
akin to that of the C++ STL, for now this PR simply changes a handful of
cases which were inconsistent with the rest of the codebase (`void` return
type was already the most common case prior to this commit).
This commit is contained in:
Rémi Verschelde 2021-11-30 15:19:26 +01:00
parent 2d118bd8b8
commit 7da392bcc5
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GPG key ID: C3336907360768E1
28 changed files with 93 additions and 90 deletions
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3
core/templates/vmap.h
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@ -193,9 +193,8 @@ public:
_FORCE_INLINE_ VMap() {}
_FORCE_INLINE_ VMap(const VMap &p_from) { _cowdata._ref(p_from._cowdata); }
inline VMap &operator=(const VMap &p_from) {
inline void operator=(const VMap &p_from) {
_cowdata._ref(p_from._cowdata);
return *this;
}
};