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Add is_truthy, is_falsy

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This commit is contained in:
Thomas
2019-07-02 18:44:06 +02:00
parent bf631eda1b
commit e61f691e0b
4 changed files with 59 additions and 0 deletions
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6
crates/cli-support/src/intrinsic.rs
View File

@ -85,6 +85,12 @@ intrinsics! {
#[symbol = "__wbindgen_is_string"]
#[signature = fn(ref_anyref()) -> Boolean]
IsString,
#[symbol = "__wbindgen_is_truthy"]
#[signature = fn(ref_anyref()) -> Boolean]
IsTruthy,
#[symbol = "__wbindgen_is_falsy"]
#[signature = fn(ref_anyref()) -> Boolean]
IsFalsy,
#[symbol = "__wbindgen_object_clone_ref"]
#[signature = fn(ref_anyref()) -> Anyref]
ObjectCloneRef,

10
crates/cli-support/src/js/mod.rs
View File

@ -2299,6 +2299,16 @@ impl<'a> Context<'a> {
format!("typeof({}) === 'string'", args[0])
}
Intrinsic::IsTruthy => {
assert_eq!(args.len(), 1);
format!("!!{}", args[0])
}
Intrinsic::IsFalsy => {
assert_eq!(args.len(), 1);
format!("!{}", args[0])
}
Intrinsic::ObjectCloneRef => {
assert_eq!(args.len(), 1);
args[0].clone()