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typecheck_expr doesnt need to mutate the TypeChecker

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This commit is contained in:
Antoni Piasecki
2026-03-18 19:08:10 +01:00
parent 0dbe7560b6
commit 625fc0d811
2 changed files with 3 additions and 3 deletions
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4
src/typechecker.rs
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@@ -219,7 +219,7 @@ impl<'a> TypeChecker<'a> {
Ok(())
}
pub fn typecheck_expr(&mut self, env: &mut Env, expr: &Expr) -> Result<Type, ZernError> {
pub fn typecheck_expr(&self, env: &mut Env, expr: &Expr) -> Result<Type, ZernError> {
match expr {
Expr::Binary { left, op, right } => {
let left_type = self.typecheck_expr(env, left)?;
@@ -370,7 +370,7 @@ impl<'a> TypeChecker<'a> {
} => {
if let Expr::Variable(callee_name) = &**callee {
if self.analyzer.functions.contains_key(&callee_name.lexeme) {
let fn_type = &self.analyzer.functions[&callee_name.lexeme].clone();
let fn_type = &self.analyzer.functions[&callee_name.lexeme];
// its a function (defined/builtin/extern)
if let Some(params) = fn_type.params.clone() {
for (i, arg) in args.iter().enumerate() {