Merge all error types into a single one

They started with good intentions, but in the end they were all pretty
much alike. Hence, it makes sense to simplify everything and provide a
single struct.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 0 insertions, 143 deletions

diff --git a/lib/xixanta/src/errors.rs b/lib/xixanta/src/errors.rs
deleted file mode 100644
index 544b9b4..0000000
--- a/lib/xixanta/src/errors.rs
+++ /dev/null
@@ -1,143 +0,0 @@
-use crate::SourceInfo;
-use std::fmt;
-
-#[derive(Debug, Clone, PartialEq)]
-pub enum Error {
-    Parse(ParseError),
-    Context(ContextError),
-    Eval(EvalError),
-}
-
-impl From<ParseError> for Vec<Error> {
-    fn from(err: ParseError) -> Self {
-        vec![Error::Parse(err)]
-    }
-}
-
-impl From<ParseError> for Vec<ParseError> {
-    fn from(err: ParseError) -> Self {
-        vec![err]
-    }
-}
-
-impl From<ContextError> for Vec<Error> {
-    fn from(err: ContextError) -> Self {
-        vec![Error::Context(err)]
-    }
-}
-
-impl From<EvalError> for Vec<Error> {
-    fn from(err: EvalError) -> Self {
-        vec![Error::Eval(err)]
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        match self {
-            Error::Parse(parse_error) => write!(f, "{}", parse_error),
-            Error::Context(context_error) => write!(f, "{}", context_error),
-            Error::Eval(eval_error) => write!(f, "{}", eval_error),
-        }
-    }
-}
-
-#[derive(Debug, Clone, PartialEq)]
-pub struct ParseError {
-    pub line: usize,
-    pub message: String,
-    pub source: SourceInfo,
-}
-
-impl std::error::Error for ParseError {}
-
-impl fmt::Display for ParseError {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        if self.source.name.is_empty() {
-            write!(f, "{} (line {})", self.message, self.line + 1)
-        } else {
-            write!(
-                f,
-                "{} ({}: line {})",
-                self.message,
-                self.source.name,
-                self.line + 1
-            )
-        }
-    }
-}
-
-#[derive(Debug, Clone, PartialEq)]
-pub struct ContextError {
-    pub line: usize,
-    pub message: String,
-    pub global: bool,
-    pub source: SourceInfo,
-}
-
-impl std::error::Error for ContextError {}
-
-impl fmt::Display for ContextError {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        if self.global {
-            if self.source.name.is_empty() {
-                write!(f, "{}", self.message)
-            } else {
-                write!(f, "{} ({})", self.message, self.source.name)
-            }
-        } else if self.source.name.is_empty() {
-            write!(f, "{} (line {})", self.message, self.line + 1)
-        } else {
-            write!(
-                f,
-                "{} ({}: line {})",
-                self.message,
-                self.source.name,
-                self.line + 1
-            )
-        }
-    }
-}
-
-#[derive(Debug, Clone, PartialEq)]
-pub struct EvalError {
-    pub line: usize,
-    pub message: String,
-    pub global: bool,
-    pub source: SourceInfo,
-}
-
-impl std::error::Error for EvalError {}
-
-impl From<ContextError> for EvalError {
-    fn from(err: ContextError) -> Self {
-        EvalError {
-            line: err.line,
-            message: err.message,
-            global: false,
-            source: SourceInfo::default(), // TODO
-        }
-    }
-}
-
-impl fmt::Display for EvalError {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        if self.global {
-            if self.source.name.is_empty() {
-                write!(f, "{}", self.message)
-            } else {
-                write!(f, "{} ({})", self.message, self.source.name)
-            }
-        } else if self.source.name.is_empty() {
-            write!(f, "{} (line {})", self.message, self.line + 1)
-        } else {
-            write!(
-                f,
-                "{} ({}: line {})",
-                self.message,
-                self.source.name,
-                self.line + 1
-            )
-        }
-    }
-}