30 lines
708 B
Rust
30 lines
708 B
Rust
use inkwell::values::PointerValue;
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use std::collections::HashMap;
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pub struct Scope<'a> {
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parent: Option<Box<Scope<'a>>>,
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symbol_table: HashMap<String, PointerValue<'a>>,
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}
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impl<'a> Scope<'a> {
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pub fn new(_parent: Option<Scope>) -> Scope {
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let p = match _parent {
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Some(x) => Some(Box::new(x)),
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None => None,
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};
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Scope {
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parent: p,
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symbol_table: HashMap::new(),
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}
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}
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pub fn lookup(&self, key: &str) -> Option<PointerValue> {
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self.symbol_table.get(key).map(|x| *x)
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}
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pub fn insert(&mut self, key: &str, val: PointerValue<'a>) {
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self.symbol_table.insert(key.to_string(), val);
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}
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}
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