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Update docs.

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This commit is contained in:
Stephen Chung
2020-07-13 13:41:01 +08:00
parent e8d78bdfde
commit 930abb8b5c
12 changed files with 112 additions and 29 deletions
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4
doc/src/engine/custom-op.md
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@@ -21,7 +21,7 @@ let mut engine = Engine::new();
// (i.e. between +|- and *|/)
// Also register the implementation of the customer operator as a function
engine
.register_custom_operator("foo", 160).unwrap()
.register_custom_operator("foo", 160)?
.register_fn("foo", |x: i64, y: i64| (x * y) - (x + y));
// The custom operator can be used in expressions
@@ -72,7 +72,7 @@ _Unary_ custom operators are not supported.
```rust
engine
.register_custom_operator("foo", 160).unwrap()
.register_custom_operator("foo", 160)?
.register_fn("foo", |x: i64| x * x);
engine.eval::<i64>("1 + 2 * 3 foo 4 - 5 / 6")?; // error: function 'foo (i64, i64)' not found