roc/compiler/can/tests/can_inline.rs
2020-10-30 16:58:53 +01:00

111 lines
3.9 KiB
Rust

#[macro_use]
extern crate pretty_assertions;
#[macro_use]
extern crate indoc;
extern crate bumpalo;
extern crate roc_can;
extern crate roc_parse;
extern crate roc_region;
mod helpers;
#[cfg(test)]
mod can_inline {
use crate::helpers::{can_expr_with, test_home};
use bumpalo::Bump;
use roc_can::expr::inline_calls;
use roc_can::expr::Expr::{self, *};
use roc_can::scope::Scope;
use roc_types::subs::VarStore;
fn assert_inlines_to(input: &str, expected: Expr, var_store: &mut VarStore) {
let arena = Bump::new();
let scope = &mut Scope::new(test_home(), var_store);
let actual_out = can_expr_with(&arena, test_home(), input);
let actual = inline_calls(var_store, scope, actual_out.loc_expr.value);
assert_eq!(actual, expected);
}
#[test]
fn inline_empty_record() {
// fn inline_list_len() {
let var_store = &mut VarStore::default();
assert_inlines_to(
indoc!(
r#"
{}
"#
),
EmptyRecord,
var_store,
);
// TODO testing with hardcoded variables is very brittle.
// Should find a better way to test this!
// (One idea would be to traverse both Exprs and zero out all the Variables,
// so they always pass equality.)
// let aliases = SendMap::default();
// assert_inlines_to(
// indoc!(
// r#"
// Int.isZero 5
// "#
// ),
// LetNonRec(
// Box::new(Def {
// loc_pattern: Located {
// region: Region::zero(),
// value: Pattern::Identifier(Symbol::ARG_1),
// },
// pattern_vars: SendMap::default(),
// loc_expr: Located {
// region: Region::new(0, 0, 11, 12),
// value: Num(unsafe { Variable::unsafe_test_debug_variable(7) }, 5),
// },
// expr_var: unsafe { Variable::unsafe_test_debug_variable(8) },
// annotation: None,
// }),
// Box::new(Located {
// region: Region::zero(),
// value: Expr::Call(
// Box::new((
// unsafe { Variable::unsafe_test_debug_variable(138) },
// Located {
// region: Region::zero(),
// value: Expr::Var(Symbol::BOOL_EQ),
// },
// unsafe { Variable::unsafe_test_debug_variable(139) },
// )),
// vec![
// (
// unsafe { Variable::unsafe_test_debug_variable(140) },
// Located {
// region: Region::zero(),
// value: Var(Symbol::ARG_1),
// },
// ),
// (
// unsafe { Variable::unsafe_test_debug_variable(141) },
// Located {
// region: Region::zero(),
// value: Int(
// unsafe { Variable::unsafe_test_debug_variable(137) },
// 0,
// ),
// },
// ),
// ],
// CalledVia::Space,
// ),
// }),
// unsafe { Variable::unsafe_test_debug_variable(198) },
// aliases,
// ),
// var_store,
// )
}
}