AbleScript/ablescript
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Added Undefined type

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Erin 2022-05-06 20:19:35 +02:00 committed by ondra05
parent aa29a1fc86
commit bda92cc2f7
1 changed files with 23 additions and 13 deletions
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36
ablescript/src/variables.rs
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@ -28,6 +28,7 @@ impl Abool {
}
}
}
impl Display for Abool {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
@ -140,6 +141,7 @@ pub type Cart = HashMap<Value, ValueRef>;
#[derive(Debug, Clone)]
pub enum Value {
Nul,
Undefined,
Str(String),
Int(isize),
Abool(Abool),
@ -157,7 +159,7 @@ impl Hash for Value {
fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
discriminant(self).hash(state);
match self {
Value::Nul => (),
Value::Nul | Value::Undefined => (),
Value::Str(v) => v.hash(state),
Value::Int(v) => v.hash(state),
Value::Abool(v) => v.to_string().hash(state),
@ -211,6 +213,7 @@ impl Value {
},
Value::Int(i) => i,
Value::Nul => consts::ANSWER,
Value::Undefined => todo!("undefined -> isize coercion"),
Value::Str(text) => text
.parse()
.unwrap_or_else(|_| text.chars().map(|cr| cr as isize).sum()),
@ -225,6 +228,7 @@ impl Value {
pub fn into_abool(self) -> Abool {
match self {
Value::Nul => Abool::Never,
Value::Undefined => Abool::Sometimes,
Value::Str(s) => match s.to_lowercase().as_str() {
"never" | "no" | "🇳🇴" => Abool::Never,
"sometimes" => Abool::Sometimes,
@ -292,6 +296,7 @@ impl Value {
body: vec![],
params: vec![],
},
Value::Undefined => todo!("undefined -> functio coercion"),
Value::Str(s) => Functio::Eval(s),
Value::Int(i) => Functio::Bf {
instructions: {
@ -345,6 +350,7 @@ impl Value {
pub fn into_cart(self) -> Cart {
match self {
Value::Nul => HashMap::new(),
Value::Undefined => todo!("undefined -> cart coercion"),
Value::Str(s) => s
.chars()
.enumerate()
@ -452,6 +458,7 @@ impl Value {
pub fn length(&self) -> isize {
match self {
Value::Nul => 0,
Value::Undefined => todo!("undefined length"),
Value::Str(s) => s.len() as _,
Value::Int(i) => i.count_zeros() as _,
Value::Abool(a) => match a {
@ -502,8 +509,9 @@ impl ops::Add for Value {
fn add(self, rhs: Self) -> Self::Output {
match self {
Value::Nul => match rhs {
Value::Nul | Value::Undefined => match rhs {
Value::Nul => Value::Nul,
Value::Undefined => Value::Undefined,
Value::Str(_) => Value::Str(self.to_string()) + rhs,
Value::Int(_) => Value::Int(self.into_isize()) + rhs,
Value::Abool(_) => Value::Abool(self.into_abool()) + rhs,
@ -531,8 +539,9 @@ impl ops::Sub for Value {
fn sub(self, rhs: Self) -> Self::Output {
match self {
Value::Nul => match rhs {
Value::Nul | Value::Undefined => match rhs {
Value::Nul => Value::Nul,
Value::Undefined => Value::Undefined,
Value::Str(_) => Value::Str(self.to_string()) - rhs,
Value::Int(_) => Value::Int(self.into_isize()) - rhs,
Value::Abool(_) => Value::Abool(self.into_abool()) - rhs,
@ -648,8 +657,9 @@ impl ops::Mul for Value {
fn mul(self, rhs: Self) -> Self::Output {
match self {
Value::Nul => match rhs {
Value::Nul | Value::Undefined => match rhs {
Value::Nul => Value::Nul,
Value::Undefined => Value::Undefined,
Value::Str(_) => Value::Str(self.to_string()) * rhs,
Value::Int(_) => Value::Int(self.into_isize()) * rhs,
Value::Abool(_) => Value::Abool(self.into_abool()) * rhs,
@ -689,8 +699,9 @@ impl ops::Div for Value {
fn div(self, rhs: Self) -> Self::Output {
match self {
Value::Nul => match rhs {
Value::Nul | Value::Undefined => match rhs {
Value::Nul => Value::Nul,
Value::Undefined => Value::Undefined,
Value::Str(_) => Value::Str(self.to_string()) / rhs,
Value::Int(_) => Value::Int(self.into_isize()) / rhs,
Value::Abool(_) => Value::Abool(self.into_abool()) / rhs,
@ -793,7 +804,8 @@ impl ops::Not for Value {
fn not(self) -> Self::Output {
match self {
Value::Nul => Value::Nul,
Value::Nul => Value::Undefined,
Value::Undefined => Value::Nul,
Value::Str(s) => Value::Str(s.chars().rev().collect()),
Value::Int(i) => Value::Int(i.swap_bytes()),
Value::Abool(a) => Value::Abool(match a {
@ -856,6 +868,7 @@ impl PartialEq for Value {
match self {
Value::Nul => matches!(other, Value::Nul),
Value::Undefined => matches!(other, Value::Undefined),
Value::Str(s) => *s == other.to_string(),
Value::Int(i) => *i == other.into_isize(),
Value::Abool(a) => *a == other.into_abool(),
@ -873,18 +886,14 @@ impl PartialOrd for Value {
let other = other.clone();
match self {
Value::Nul => {
if other == Value::Nul {
Some(Equal)
} else {
None
}
}
Value::Nul if other == Value::Nul => Some(Equal),
Value::Undefined if other == Value::Undefined => Some(Equal),
Value::Str(s) => Some(s.cmp(&other.to_string())),
Value::Int(i) => Some(i.cmp(&other.into_isize())),
Value::Abool(a) => a.partial_cmp(&other.into_abool()),
Value::Functio(_) => self.clone().into_isize().partial_cmp(&other.into_isize()),
Value::Cart(c) => Some(c.len().cmp(&other.into_cart().len())),
Value::Nul | Value::Undefined => None,
}
}
}
@ -893,6 +902,7 @@ impl Display for Value {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Value::Nul => write!(f, "nul"),
Value::Undefined => write!(f, "undefined"),
Value::Str(v) => write!(f, "{}", v),
Value::Int(v) => write!(f, "{}", v),
Value::Abool(v) => write!(f, "{}", v),