From ecce0803789805827a7de2a91eb37faf1088ba02 Mon Sep 17 00:00:00 2001
From: Erin <erin@erindesu.cz>
Date: Sun, 2 May 2021 17:38:12 +0200
Subject: [PATCH] Added T-Dark block - obeyed clippy

---
 src/parser/mod.rs   | 50 +++++++++++++++++++++++++++++++++++++--------
 src/parser/ops.rs   | 12 +++++++++--
 src/parser/utils.rs |  6 +++++-
 src/variables.rs    |  6 +++---
 4 files changed, 60 insertions(+), 14 deletions(-)

diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index 9d31559..d58ed00 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -18,6 +18,7 @@ pub type ParseResult = Result<Item, Error>;
 pub struct Parser<'a> {
     lexer: PeekableLexer<'a>,
     ast: Vec<Item>,
+    tdark: bool,
 }
 
 impl<'a> Parser<'a> {
@@ -26,20 +27,26 @@ impl<'a> Parser<'a> {
         Self {
             lexer: PeekableLexer::lexer(source),
             ast: Vec::new(),
+            tdark: false,
         }
     }
 
     pub fn init(&mut self) -> Result<Vec<Item>, Error> {
         loop {
             let token = self.lexer.next();
-            if token.is_none() {
-                return Ok(self.ast.clone());
-            };
-            if matches!(token, Some(Token::Comment)) {
-                continue;
+
+            match token {
+                Some(Token::Comment) => continue,
+                Some(Token::TDark) => {
+                    let mut block = self.tdark_block()?;
+                    self.ast.append(&mut block);
+                }
+                None => return Ok(self.ast.clone()),
+                _ => {
+                    let item = self.parse_item(token)?;
+                    self.ast.push(item);
+                }
             }
-            let item = self.parse_item(token)?;
-            self.ast.push(item);
         }
     }
 
@@ -169,7 +176,7 @@ impl<'a> Parser<'a> {
         Ok(Stmt::BfFDeclaration { iden, body }.into())
     }
 
-    /// Parse If-expression
+    /// Parse If-stmt
     pub fn if_cond(&mut self) -> ParseResult {
         self.require(Token::LeftParenthesis)?;
         let cond = self.lexer.next();
@@ -186,4 +193,31 @@ impl<'a> Parser<'a> {
         }
         .into())
     }
+
+    /// T-Dark block parsing
+    pub fn tdark_block(&mut self) -> Result<Vec<Item>, Error> {
+        self.require(Token::LeftBrace)?;
+        self.tdark = true;
+        let mut body = Vec::new();
+        loop {
+            let token = {
+                match self.lexer.next() {
+                    Some(t) => t,
+                    None => {
+                        return Err(Error {
+                            kind: ErrorKind::EndOfTokenStream,
+                            position: self.lexer.span(),
+                        })
+                    }
+                }
+            };
+
+            if token == Token::RightBrace {
+                break;
+            }
+            body.push(self.parse_item(Some(token))?);
+        }
+        self.tdark = false;
+        Ok(body)
+    }
 }
diff --git a/src/parser/ops.rs b/src/parser/ops.rs
index 1829b86..c400925 100644
--- a/src/parser/ops.rs
+++ b/src/parser/ops.rs
@@ -72,9 +72,17 @@ impl<'a> Parser<'a> {
         match token {
             Token::Boolean(b) => Ok(Expr::Literal(Value::Bool(b))),
             Token::Integer(i) => Ok(Expr::Literal(Value::Int(i))),
-            Token::String(s) => Ok(Expr::Literal(Value::Str(s))),
+            Token::String(s) => Ok(Expr::Literal(Value::Str(if self.tdark {
+                s.replace("lang", "script")
+            } else {
+                s
+            }))),
             Token::Aboolean(a) => Ok(Expr::Literal(Value::Abool(a))),
-            Token::Identifier(i) => Ok(Expr::Identifier(Iden(i))),
+            Token::Identifier(i) => Ok(Expr::Identifier(Iden(if self.tdark {
+                i.replace("lang", "script")
+            } else {
+                i
+            }))),
             Token::LogNot => {
                 let next = self.lexer.next();
                 Ok(Expr::Not(Box::new(self.parse_expr(next)?)))
diff --git a/src/parser/utils.rs b/src/parser/utils.rs
index 1706fbe..451bc18 100644
--- a/src/parser/utils.rs
+++ b/src/parser/utils.rs
@@ -36,7 +36,11 @@ impl<'a> Parser<'a> {
     /// Require an identifier on next and return it
     pub(super) fn require_iden(&mut self) -> Result<Iden, Error> {
         if let Some(Token::Identifier(id)) = self.lexer.next() {
-            Ok(Iden(id))
+            if self.tdark {
+                Ok(Iden(id.replace("lang", "script")))
+            } else {
+                Ok(Iden(id))
+            }
         } else {
             Err(Error {
                 kind: ErrorKind::InvalidIdentifier,
diff --git a/src/variables.rs b/src/variables.rs
index fd4a57c..10927c1 100644
--- a/src/variables.rs
+++ b/src/variables.rs
@@ -7,9 +7,9 @@ pub enum Abool {
     Always = 1,
 }
 
-impl Into<bool> for Abool {
-    fn into(self) -> bool {
-        match self {
+impl From<Abool> for bool {
+    fn from(val: Abool) -> Self {
+        match val {
             Abool::Never => false,
             Abool::Always => true,
             Abool::Sometimes => rand::thread_rng().gen(),