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Add support for String in function parameters.

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This commit is contained in:
Stephen Chung
2020-07-13 13:40:51 +08:00
parent 8449f8c55e
commit e8d78bdfde
4 changed files with 16 additions and 11 deletions
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2
tests/decrement.rs
View File

@@ -8,7 +8,7 @@ fn test_decrement() -> Result<(), Box<EvalAltResult>> {
assert!(matches!(
*engine.eval::<String>(r#"let s = "test"; s -= "ing"; s"#).expect_err("expects error"),
EvalAltResult::ErrorFunctionNotFound(err, _) if err == "- (&str | ImmutableString, &str | ImmutableString)"
EvalAltResult::ErrorFunctionNotFound(err, _) if err == "- (&str | ImmutableString | String, &str | ImmutableString | String)"
));
Ok(())

15
tests/string.rs
View File

@@ -173,17 +173,16 @@ fn test_string_fn() -> Result<(), Box<EvalAltResult>> {
"foo"
);
engine.register_fn("foo1", |s: &str| s.len() as INT);
engine.register_fn("foo2", |s: ImmutableString| s.len() as INT);
engine.register_fn("foo3", |s: String| s.len() as INT);
engine
.register_fn("foo1", |s: &str| s.len() as INT)
.register_fn("foo2", |s: ImmutableString| s.len() as INT)
.register_fn("foo3", |s: String| s.len() as INT)
.register_fn("foo4", |s: &mut ImmutableString| s.len() as INT);
assert_eq!(engine.eval::<INT>(r#"foo1("hello")"#)?, 5);
assert_eq!(engine.eval::<INT>(r#"foo2("hello")"#)?, 5);
assert!(matches!(
*engine.eval::<INT>(r#"foo3("hello")"#).expect_err("should error"),
EvalAltResult::ErrorFunctionNotFound(err, _) if err == "foo3 (&str | ImmutableString)"
));
assert_eq!(engine.eval::<INT>(r#"foo3("hello")"#)?, 5);
assert_eq!(engine.eval::<INT>(r#"foo4("hello")"#)?, 5);
Ok(())
}