From fbaa420ed550e9c3e7cdc09d4a8ec22bfbd782a6 Mon Sep 17 00:00:00 2001
From: JSDurand <mmemmew@gmail.com>
Date: Mon, 27 Feb 2023 12:36:41 +0800
Subject: before a major refactor

I decide to adopt a new approach of recording and updating item
derivation forests.  Since this affects a lot of things, I decide to
commit before the refactor, so that I can create a branch for that
refactor.
---
 grammar/src/tests/test_grammar_left_closure.rs | 55 --------------------------
 1 file changed, 55 deletions(-)

(limited to 'grammar/src/tests')

diff --git a/grammar/src/tests/test_grammar_left_closure.rs b/grammar/src/tests/test_grammar_left_closure.rs
index ffc7c0f..be1df9d 100644
--- a/grammar/src/tests/test_grammar_left_closure.rs
+++ b/grammar/src/tests/test_grammar_left_closure.rs
@@ -81,59 +81,6 @@ fn test_nfa() -> Result<(), Box<dyn std::error::Error>> {
     Ok(())
 }
 
-#[test]
-fn test_remove_epsilon() -> Result<(), Box<dyn std::error::Error>> {
-    let mut lock = stdout().lock();
-
-    let mut grammar = new_paren_grammar()?;
-
-    writeln!(lock, "grammar:")?;
-    writeln!(lock, "{grammar}")?;
-
-    let closure = new_closure_regex(&mut grammar)?;
-
-    let mut accumulator_value: usize = 0;
-
-    for regex in closure.iter() {
-        writeln!(
-            lock,
-            "regex: {}",
-            regex.to_string_with(|tnt| {
-                match tnt {
-                    TNT::Ter(t) => {
-                        format!(
-                            "({})",
-                            grammar.name_of_tnt(grammar.unpack_tnt(t).unwrap()).unwrap()
-                        )
-                    }
-                    TNT::Non(_) => {
-                        // hyper non-terminal
-                        format!("({})", grammar.name_of_tnt(tnt).unwrap())
-                    }
-                }
-            })?
-        )?;
-        writeln!(lock, "regex len = {}", regex.nodes_len())?;
-        writeln!(lock, "offset = {accumulator_value}")?;
-
-        accumulator_value += regex.nodes_len();
-    }
-
-    writeln!(lock, "total = {accumulator_value}")?;
-
-    let mut nfa = grammar.left_closure_to_nfa(&closure)?;
-
-    #[cfg(features = "test-print-viz")]
-    nfa.print_viz("nfa_orig.gv")?;
-
-    nfa.remove_epsilon(|label| label.get_value().is_none())?;
-
-    #[cfg(features = "test-print-viz")]
-    nfa.print_viz("nfa_no_epsilon.gv")?;
-
-    Ok(())
-}
-
 #[test]
 fn test_remove_dead() -> Result<(), Box<dyn std::error::Error>> {
     let mut grammar = new_paren_grammar()?;
@@ -177,8 +124,6 @@ fn test_remove_dead() -> Result<(), Box<dyn std::error::Error>> {
     #[cfg(features = "test-print-viz")]
     nfa.print_viz("nfa_orig.gv")?;
 
-    // nfa.remove_epsilon(|label| label.get_value().is_none())?;
-
     let accumulators: HashSet<usize> = accumulators.into_iter().collect();
 
     println!("accumulators = {accumulators:?}");
-- 
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