87 lines
1.9 KiB
Rust
87 lines
1.9 KiB
Rust
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use std::{
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collections::BTreeMap,
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ops::Range,
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sync::{Arc, OnceLock},
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};
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use crate::{context::Context, error::RuntimeError};
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use super::{AbstractTree, Identifier, Statement};
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pub static NONE: OnceLock<Value> = OnceLock::new();
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#[derive(Clone, Debug, PartialEq)]
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pub struct Value(Arc<ValueInner>);
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impl Value {
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pub fn inner(&self) -> &Arc<ValueInner> {
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&self.0
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}
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pub fn none() -> Self {
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NONE.get_or_init(|| {
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Value::r#enum(EnumInstance {
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type_name: Identifier::new("Option"),
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variant: Identifier::new("None"),
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})
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})
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.clone()
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}
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pub fn boolean(boolean: bool) -> Self {
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Value(Arc::new(ValueInner::Boolean(boolean)))
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}
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pub fn float(float: f64) -> Self {
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Value(Arc::new(ValueInner::Float(float)))
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}
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pub fn integer(integer: i64) -> Self {
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Value(Arc::new(ValueInner::Integer(integer)))
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}
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pub fn list(list: Vec<Statement>) -> Self {
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Value(Arc::new(ValueInner::List(list)))
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}
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pub fn map(map: BTreeMap<Identifier, Value>) -> Self {
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Value(Arc::new(ValueInner::Map(map)))
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}
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pub fn range(range: Range<i64>) -> Self {
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Value(Arc::new(ValueInner::Range(range)))
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}
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pub fn string<T: ToString>(string: T) -> Self {
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Value(Arc::new(ValueInner::String(string.to_string())))
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}
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pub fn r#enum(r#enum: EnumInstance) -> Self {
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Value(Arc::new(ValueInner::Enum(r#enum)))
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}
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}
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#[derive(Clone, Debug, PartialEq)]
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pub enum ValueInner {
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Boolean(bool),
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Float(f64),
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Integer(i64),
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List(Vec<Statement>),
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Map(BTreeMap<Identifier, Value>),
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Range(Range<i64>),
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String(String),
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Enum(EnumInstance),
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}
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#[derive(Clone, Debug, PartialEq)]
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pub struct EnumInstance {
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type_name: Identifier,
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variant: Identifier,
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}
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impl AbstractTree for Value {
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fn run(self, _: &Context) -> Result<Value, RuntimeError> {
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Ok(self)
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}
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}
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