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Add strinst.__bool__ method

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Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
This commit is contained in:
Alek Ratzloff
2020-11-09 16:35:42 -08:00
parent 27b2ae9182
commit 357aad5306
1 changed files with 13 additions and 0 deletions
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13
src/obj/str.rs
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@@ -24,6 +24,7 @@ impl Str {
attrs: Default::default(),
},
vtable: |obj_ref: ObjRef| vtable! {
BOOL_MEMBER_NAME.sym => Method::new_obj(obj_ref.clone(), STR_BOOL_METH.clone()),
STR_MEMBER_NAME.sym => Method::new_obj(obj_ref.clone(), STR_STR_METH.clone()),
REPR_MEMBER_NAME.sym => Method::new_obj(obj_ref.clone(), STR_REPR_METH.clone()),
INT_MEMBER_NAME.sym => Method::new_obj(obj_ref.clone(), STR_INT_METH.clone()),
@@ -48,6 +49,18 @@ impl Debug for Str {
// Builtin Str functions
////////////////////////////////////////////////////////////////////////////////
/// Str.__bool__(self) impl
static STR_BOOL_METH: Lazy<NativeFunRef> = Lazy::new(|| {
NativeFun::new_obj(1, |_callee, vm, args| {
read_obj_downcast!(let str_obj: Option<&Str> = &args[0]);
let str_obj = str_obj.ok_or_else(|| Error::ValueError {
error: "expected Str value".to_string(),
})?;
vm.push(BoolRef::from(!str_obj.value.is_empty()));
Ok(crate::vm::signal::Signal::Return)
})
});
/// Str.__str__(self) impl
static STR_STR_METH: Lazy<NativeFunRef> = Lazy::new(|| {
NativeFun::new_obj(1, |_callee, vm, args| {