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Move sub() inside kal

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This commit is contained in:
Andrew Morris
2023-07-25 17:14:01 +10:00
parent b0b8e3d192
commit 474047aec2
1 changed files with 61 additions and 57 deletions
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118
valuescript_compiler/src/optimization/kal.rs
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@@ -258,6 +258,66 @@ impl Kal {
Kal::Builtin(_) => None,
}
}
fn sub(&self, key: &Kal) -> Kal {
match self {
Kal::String(string) => match key {
Kal::Number(Number(i)) => match number_to_index(*i) {
Some(i) => 'b: {
let string_bytes = string.as_bytes();
if i >= string_bytes.len() {
break 'b Kal::Undefined;
}
match unicode_at(string_bytes, string_bytes.len(), i) {
Some(char) => Kal::String(char.to_string()),
None => Kal::String("".to_string()),
}
}
None => Kal::Undefined,
},
Kal::String(key) => match key.as_str() {
"length" => Kal::Number(Number(string.len() as f64)),
_ => Kal::Unknown,
},
_ => Kal::Unknown,
},
Kal::Array(array) => match key {
Kal::Number(Number(i)) => match number_to_index(*i) {
Some(i) => match array.values.get(i) {
Some(item) => item.clone(),
None => Kal::Undefined,
},
None => Kal::Undefined,
},
_ => Kal::Unknown, // TODO: Implement more cases
},
Kal::Object(object) => 'b: {
let key_str = match key.to_known_string() {
Some(s) => s,
None => break 'b Kal::Unknown,
};
for (k, v) in object.properties.iter().rev() {
match k.to_known_string() {
Some(k) => {
if k == key_str {
break 'b v.clone();
}
}
None => break 'b Kal::Unknown,
}
}
// TODO: Prototypes (currently anything with a prototype should be Kal::Unknown, but
// when this changes Kal::Undefined could be wrong)
Kal::Undefined
}
_ => Kal::Unknown, // TODO: Implement more cases
}
}
}
#[derive(Default)]
@@ -460,63 +520,7 @@ impl FnState {
let obj = self.eval_arg(obj);
let key = self.eval_arg(key);
let item = match obj {
Kal::String(string) => match key {
Kal::Number(Number(i)) => match number_to_index(i) {
Some(i) => 'b: {
let string_bytes = string.as_bytes();
if i >= string_bytes.len() {
break 'b Kal::Undefined;
}
match unicode_at(string_bytes, string_bytes.len(), i) {
Some(char) => Kal::String(char.to_string()),
None => Kal::String("".to_string()),
}
}
None => Kal::Undefined,
},
Kal::String(key) => match key.as_str() {
"length" => Kal::Number(Number(string.len() as f64)),
_ => Kal::Unknown,
},
_ => Kal::Unknown,
},
Kal::Array(array) => match key {
Kal::Number(Number(i)) => match number_to_index(i) {
Some(i) => match array.values.get(i) {
Some(item) => item.clone(),
None => Kal::Undefined,
},
None => Kal::Undefined,
},
_ => Kal::Unknown, // TODO: Implement more cases
},
Kal::Object(object) => 'b: {
let key_str = match key.to_known_string() {
Some(s) => s,
None => break 'b Kal::Unknown,
};
for (k, v) in object.properties.iter().rev() {
match k.to_known_string() {
Some(k) => {
if k == key_str {
break 'b v.clone();
}
}
None => break 'b Kal::Unknown,
}
}
// TODO: Prototypes (currently anything with a prototype should be Kal::Unknown, but
// when this changes Kal::Undefined could be wrong)
Kal::Undefined
}
_ => Kal::Unknown, // TODO: Implement more cases
};
let item = obj.sub(&key);
self.set(dst.name.clone(), item);
}