From 13d6e275efdc94ed96979afdec4a06c06b789c7e Mon Sep 17 00:00:00 2001
From: Jeong YunWon <jeong@youknowone.org>
Date: Sat, 6 May 2023 17:15:18 +0900
Subject: [PATCH] Remove CompileError

---
 core/src/error.rs    | 56 --------------------------------------------
 core/src/lib.rs      |  2 +-
 core/src/location.rs |  2 +-
 3 files changed, 2 insertions(+), 58 deletions(-)

diff --git a/core/src/error.rs b/core/src/error.rs
index 813ca983..c1bd8927 100644
--- a/core/src/error.rs
+++ b/core/src/error.rs
@@ -58,59 +58,3 @@ impl<T> BaseError<T> {
         BaseError::from(self)
     }
 }
-
-#[derive(Debug)]
-pub struct CompileError<T> {
-    pub body: BaseError<T>,
-    pub statement: Option<String>,
-}
-
-impl<T: StdError + 'static> StdError for CompileError<T> {
-    fn source(&self) -> Option<&(dyn StdError + 'static)> {
-        self.body.source()
-    }
-}
-
-impl<T> std::ops::Deref for CompileError<T> {
-    type Target = BaseError<T>;
-    fn deref(&self) -> &Self::Target {
-        &self.body
-    }
-}
-
-impl<T> std::fmt::Display for CompileError<T>
-where
-    T: std::fmt::Display,
-{
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        let loc = self.location;
-        if let Some(ref stmt) = self.statement {
-            // visualize the error when location and statement are provided
-            loc.fmt_with(f, &self.error)?;
-            write!(f, "\n{stmt}{arrow:>pad$}", pad = loc.column(), arrow = "^")
-        } else {
-            loc.fmt_with(f, &self.error)
-        }
-    }
-}
-
-impl<T> CompileError<T> {
-    pub fn from<U>(error: BaseError<U>, source: &str) -> Self
-    where
-        T: From<U>,
-    {
-        let statement = get_statement(source, error.location);
-        CompileError {
-            body: error.into(),
-            statement,
-        }
-    }
-}
-
-fn get_statement(source: &str, loc: Location) -> Option<String> {
-    if loc.column() == 0 || loc.row() == 0 {
-        return None;
-    }
-    let line = source.split('\n').nth(loc.row() - 1)?.to_owned();
-    Some(line + "\n")
-}
diff --git a/core/src/lib.rs b/core/src/lib.rs
index c431095f..d527d8c9 100644
--- a/core/src/lib.rs
+++ b/core/src/lib.rs
@@ -8,6 +8,6 @@ pub mod marshal;
 mod mode;
 
 pub use bytecode::*;
-pub use error::{BaseError, CompileError};
+pub use error::BaseError;
 pub use location::Location;
 pub use mode::Mode;
diff --git a/core/src/location.rs b/core/src/location.rs
index 33841392..2a3c81c2 100644
--- a/core/src/location.rs
+++ b/core/src/location.rs
@@ -18,7 +18,7 @@ impl Default for Location {
 impl Location {
     pub fn fmt_with(
         &self,
-        f: &mut std::fmt::Formatter,
+        f: &mut impl std::fmt::Write,
         e: &impl std::fmt::Display,
     ) -> std::fmt::Result {
         write!(f, "{} at line {} column {}", e, self.row(), self.column())