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Add ranges.

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This commit is contained in:
Stephen Chung
2021-12-15 12:06:17 +08:00
parent 7251f34bce
commit ef14079c61
35 changed files with 1206 additions and 269 deletions
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90
tests/switch.rs
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@@ -6,6 +6,33 @@ fn test_switch() -> Result<(), Box<EvalAltResult>> {
let mut scope = Scope::new();
scope.push("x", 42 as INT);
assert_eq!(
engine.eval::<char>("switch 2 { 1 => (), 2 => 'a', 42 => true }")?,
'a'
);
assert_eq!(
engine.eval::<()>("switch 3 { 1 => (), 2 => 'a', 42 => true }")?,
()
);
assert_eq!(
engine.eval::<INT>("switch 3 { 1 => (), 2 => 'a', 42 => true, _ => 123 }")?,
123
);
assert_eq!(
engine.eval_with_scope::<INT>(
&mut scope,
"switch 2 { 1 => (), 2 if x < 40 => 'a', 42 => true, _ => 123 }"
)?,
123
);
assert_eq!(
engine.eval_with_scope::<char>(
&mut scope,
"switch 2 { 1 => (), 2 if x > 40 => 'a', 42 => true, _ => 123 }"
)?,
'a'
);
assert_eq!(
engine.eval_with_scope::<bool>(&mut scope, "switch x { 1 => (), 2 => 'a', 42 => true }")?,
true
@@ -210,3 +237,66 @@ mod test_switch_enum {
Ok(())
}
}
#[test]
fn test_switch_ranges() -> Result<(), Box<EvalAltResult>> {
let engine = Engine::new();
let mut scope = Scope::new();
scope.push("x", 42 as INT);
assert_eq!(
engine.eval_with_scope::<char>(
&mut scope,
"switch x { 10..20 => (), 20..=42 => 'a', 25..45 => 'z', 30..100 => true }"
)?,
'a'
);
assert_eq!(
engine.eval_with_scope::<char>(
&mut scope,
"switch x { 10..20 => (), 20..=42 if x < 40 => 'a', 25..45 => 'z', 30..100 => true }"
)?,
'z'
);
assert_eq!(
engine.eval_with_scope::<char>(
&mut scope,
"switch x { 42 => 'x', 10..20 => (), 20..=42 => 'a', 25..45 => 'z', 30..100 => true, 'w' => true }"
)?,
'x'
);
assert!(matches!(
*engine.compile("switch x { 10..20 => (), 20..=42 => 'a', 25..45 => 'z', 42 => 'x', 30..100 => true }")
.expect_err("should error").0,
ParseErrorType::WrongSwitchIntegerCase
));
assert_eq!(
engine.eval_with_scope::<char>(
&mut scope,
"
switch 5 {
'a' => true,
0..10 if x+2==1+2 => print(40+2),
_ => 'x'
}
"
)?,
'x'
);
assert_eq!(
engine.eval_with_scope::<char>(
&mut scope,
"
switch 5 {
'a' => true,
0..10 if x+2==1+2 => print(40+2),
2..12 => 'z',
_ => 'x'
}
"
)?,
'z'
);
Ok(())
}