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Refine docs.

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Stephen Chung
2020-06-22 22:02:49 +08:00
parent b08f85a8b1
commit a9b168ba99
32 changed files with 260 additions and 221 deletions
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27
doc/src/rust/functions.md
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@@ -29,30 +29,25 @@ fn get_any_value() -> Result<Dynamic, Box<EvalAltResult>> {
Ok((42_i64).into()) // standard types can use 'into()'
}
fn main() -> Result<(), Box<EvalAltResult>>
{
let engine = Engine::new();
let mut engine = Engine::new();
engine.register_fn("add", add_len);
engine.register_fn("add_str", add_len_str);
engine.register_fn("add", add_len);
engine.register_fn("add_str", add_len_str);
let result = engine.eval::<i64>(r#"add(40, "xx")"#)?;
let result = engine.eval::<i64>(r#"add(40, "xx")"#)?;
println!("Answer: {}", result); // prints 42
println!("Answer: {}", result); // prints 42
let result = engine.eval::<i64>(r#"add_str(40, "xx")"#)?;
let result = engine.eval::<i64>(r#"add_str(40, "xx")"#)?;
println!("Answer: {}", result); // prints 42
println!("Answer: {}", result); // prints 42
// Functions that return Dynamic values must use register_result_fn()
engine.register_result_fn("get_any_value", get_any_value);
// Functions that return Dynamic values must use register_result_fn()
engine.register_result_fn("get_any_value", get_any_value);
let result = engine.eval::<i64>("get_any_value()")?;
let result = engine.eval::<i64>("get_any_value()")?;
println!("Answer: {}", result); // prints 42
Ok(())
}
println!("Answer: {}", result); // prints 42
```
To create a [`Dynamic`] value, use the `Dynamic::from` method.