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Better String parameter error message.

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This commit is contained in:
Stephen Chung 2020-06-08 14:10:06 +08:00
parent 5fb4b04cb0
commit a4cabc1ac7
3 changed files with 7 additions and 3 deletions
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6
src/engine.rs
View File

@ -708,7 +708,11 @@ impl Engine {
"{} ({})",
fn_name,
args.iter()
.map(|name| self.map_type_name(name.type_name()))
.map(|name| if name.is::<ImmutableString>() {
"&str | ImmutableString"
} else {
self.map_type_name(name.type_name())
})
.collect::<Vec<_>>()
.join(", ")
),

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 == "- (string, string)"
EvalAltResult::ErrorFunctionNotFound(err, _) if err == "- (&str | ImmutableString, &str | ImmutableString)"
));
Ok(())

2
tests/string.rs
View File

@ -168,7 +168,7 @@ fn test_string_fn() -> Result<(), Box<EvalAltResult>> {
assert!(matches!(
*engine.eval::<INT>(r#"foo3("hello")"#).expect_err("should error"),
EvalAltResult::ErrorFunctionNotFound(ref x, _) if x == "foo3 (string)"
EvalAltResult::ErrorFunctionNotFound(err, _) if err == "foo3 (&str | ImmutableString)"
));
Ok(())