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Revise docs for 0.19.0.

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Stephen Chung
2020-09-30 23:02:01 +08:00
parent a04ed02b54
commit cbc3d8764a
30 changed files with 291 additions and 125 deletions
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13
doc/src/rust/operators.md
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@@ -6,16 +6,23 @@ Operator Overloading
In Rhai, a lot of functionalities are actually implemented as functions, including basic operations
such as arithmetic calculations.
For example, in the expression "`a + b`", the `+` operator is _not_ built in, but calls a function named "`+`" instead!
For example, in the expression "`a + b`", the `+` operator calls a function named "`+`"!
```rust
let x = a + b;
let x = +(a, b); // <- the above is equivalent to this function call
```
Similarly, comparison operators including `==`, `!=` etc. are all implemented as functions,
with the stark exception of `&&` and `||`. Because they [_short-circuit_]({{rootUrl}}/language/logic.md#boolean-operators),
`&&` and `||` are handled specially and _not_ via a function; as a result, overriding them has no effect at all.
with the stark exception of `&&` and `||`.
`&&` and `||` Cannot Be Overloaded
---------------------------------
Because they [_short-circuit_]({{rootUrl}}/language/logic.md#boolean-operators), `&&` and `||` are
handled specially and _not_ via a function; as a result, overriding them has no effect at all.
Overload Operator via Rust Function