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Stephen Chung
2020-09-19 12:14:02 +08:00
parent b795ce9f45
commit 2ff3a1fde5
18 changed files with 133 additions and 107 deletions
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8
doc/src/language/eval.md
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@@ -65,17 +65,15 @@ disable `eval` by overloading it, probably with something that throws.
```rust
fn eval(script) { throw "eval is evil! I refuse to run " + script }
let x = eval("40 + 2"); // 'eval' here throws "eval is evil! I refuse to run 40 + 2"
let x = eval("40 + 2"); // throws "eval is evil! I refuse to run 40 + 2"
```
Or overload it from Rust:
```rust
fn alt_eval(script: String) -> Result<(), Box<EvalAltResult>> {
engine.register_result_fn("eval", |script: String| -> Result<(), Box<EvalAltResult>> {
Err(format!("eval is evil! I refuse to run {}", script).into())
}
engine.register_result_fn("eval", alt_eval);
});
```