80 lines
1.9 KiB
Rust
80 lines
1.9 KiB
Rust
use rhai::{Engine, EvalAltResult, ParseErrorType, RegisterFn, INT};
|
|
|
|
#[test]
|
|
fn test_tokens_disabled() {
|
|
let mut engine = Engine::new();
|
|
|
|
engine.disable_symbol("if"); // disable the 'if' keyword
|
|
|
|
assert!(matches!(
|
|
*engine
|
|
.compile("let x = if true { 42 } else { 0 };")
|
|
.expect_err("should error")
|
|
.0,
|
|
ParseErrorType::Reserved(err) if err == "if"
|
|
));
|
|
|
|
engine.disable_symbol("+="); // disable the '+=' operator
|
|
|
|
assert!(matches!(
|
|
*engine.compile("let x = 40 + 2; x += 1;").expect_err("should error").0,
|
|
ParseErrorType::BadInput(ref s) if s == "Unexpected '+='"
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
fn test_tokens_custom_operator() -> Result<(), Box<EvalAltResult>> {
|
|
let mut engine = Engine::new();
|
|
|
|
// Register a custom operator called `foo` and give it
|
|
// a precedence of 160 (i.e. between +|- and *|/).
|
|
engine.register_custom_operator("foo", 160).unwrap();
|
|
|
|
// Register a binary function named `foo`
|
|
engine.register_fn("foo", |x: INT, y: INT| (x * y) - (x + y));
|
|
|
|
assert_eq!(
|
|
engine.eval_expression::<INT>("1 + 2 * 3 foo 4 - 5 / 6")?,
|
|
15
|
|
);
|
|
|
|
#[cfg(not(feature = "no_function"))]
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
r"
|
|
fn foo(x, y) { y - x }
|
|
1 + 2 * 3 foo 4 - 5 / 6
|
|
"
|
|
)?,
|
|
-1
|
|
);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_tokens_unicode_xid_ident() -> Result<(), Box<EvalAltResult>> {
|
|
let engine = Engine::new();
|
|
let result = engine.eval::<INT>(
|
|
r"
|
|
fn すべての答え() { 42 }
|
|
すべての答え()
|
|
",
|
|
);
|
|
#[cfg(feature = "unicode-xid-ident")]
|
|
assert_eq!(result?, 42);
|
|
|
|
#[cfg(not(feature = "unicode-xid-ident"))]
|
|
assert!(result.is_err());
|
|
|
|
let result = engine.eval::<INT>(
|
|
r"
|
|
fn _1() { 1 }
|
|
_1()
|
|
",
|
|
);
|
|
assert!(result.is_err());
|
|
|
|
Ok(())
|
|
}
|