From f6091f3d2a764dd3f722a4a428487c0b2e986718 Mon Sep 17 00:00:00 2001
From: Emmanuel BERNAT <manu@bernat.me>
Date: Fri, 5 Apr 2024 08:07:10 +0200
Subject: [PATCH] Ajout de tests unitaires

---
 src/rlox/mod.rs              |  8 +++++---
 src/rlox/rlox_interpreter.rs | 19 +++++++++++++++----
 src/rlox/scanner.rs          | 12 ++++++------
 src/rlox/token.rs            |  3 ++-
 src/rlox/token_type.rs       | 20 +++++++++++++++++++-
 5 files changed, 47 insertions(+), 15 deletions(-)

diff --git a/src/rlox/mod.rs b/src/rlox/mod.rs
index 0e39d0b..7e58bf5 100644
--- a/src/rlox/mod.rs
+++ b/src/rlox/mod.rs
@@ -1,4 +1,6 @@
 pub mod rlox_interpreter;
-pub mod scanner;
-pub mod token;
-pub mod token_type;
+mod scanner;
+mod token;
+mod token_type;
+
+
diff --git a/src/rlox/rlox_interpreter.rs b/src/rlox/rlox_interpreter.rs
index b040d7b..5114773 100644
--- a/src/rlox/rlox_interpreter.rs
+++ b/src/rlox/rlox_interpreter.rs
@@ -1,8 +1,9 @@
 use std::{fs, io};
 use crate::{EX_DATAERR, EX_OK};
-use crate::scanner::Scanner;
 use std::io::Write;
 
+use crate::rlox::scanner::Scanner;
+
 pub struct RLoxInterpreter {
     pub had_error: bool,
 }
@@ -50,8 +51,18 @@ impl RLoxInterpreter {
     }
 
     fn run(&self, src: String) -> i32 {
-        let mut scanner = Scanner::create_scanner( src );
-        let rlox_interpreter = RLoxInterpreter { had_error: false };
-        if rlox_interpreter.had_error { EX_DATAERR } else { EX_OK }
+        let mut scanner = Scanner::new( src );
+
+        scanner.scan_token();
+        let mut current_line = 0;
+        for t in scanner.tokens {
+            if t.line!=current_line {
+                current_line = t.line;
+                println!("-- line {} --------------------", current_line);
+            }
+            println!("{}\t{}\t{}", t.token_type, t.lexeme, t.literal);
+        }
+
+        if self.had_error { EX_DATAERR } else { EX_OK }
     }
 }
\ No newline at end of file
diff --git a/src/rlox/scanner.rs b/src/rlox/scanner.rs
index acdf6ae..9f2cea6 100644
--- a/src/rlox/scanner.rs
+++ b/src/rlox/scanner.rs
@@ -1,6 +1,6 @@
 use std::collections::HashMap;
-use crate::token::Token;
-use crate::token_type::TokenType;
+use crate::rlox::token::Token;
+use crate::rlox::token_type::TokenType;
 
 fn is_digit(c: char) -> bool {
     c >= '0' && c <= '9'
@@ -16,7 +16,7 @@ fn is_alpha_numeric(c: char) -> bool {
 
 pub struct Scanner {
     source: Vec<char>,
-    tokens: Vec<Token>,
+    pub tokens: Vec<Token>,
 
     start: usize,
     current: usize,
@@ -26,14 +26,14 @@ pub struct Scanner {
 }
 
 impl Scanner {
-    pub fn create_scanner( src: String ) -> Self {
+    pub fn new(src: String) -> Self {
         Self {
             source: src.chars().collect::<Vec<_>>(),
             tokens: vec![],
             start: 0,
             current: 0,
             line: 0,
-            keywords: HashMap::new()
+            keywords: HashMap::new(),
         }
     }
 
@@ -71,7 +71,7 @@ impl Scanner {
         self.current >= self.source.len()
     }
 
-    fn scan_token(&mut self) {
+    pub fn scan_token(&mut self) {
         let c = self.advance();
         match c {
             '(' => self.add_simple_token(TokenType::LeftParen),
diff --git a/src/rlox/token.rs b/src/rlox/token.rs
index 62148ef..5ccfa95 100644
--- a/src/rlox/token.rs
+++ b/src/rlox/token.rs
@@ -1,4 +1,4 @@
-use crate::token_type::TokenType;
+use crate::rlox::token_type::TokenType;
 
 #[derive(Debug)]
 pub struct Token {
@@ -13,3 +13,4 @@ impl std::fmt::Display for Token {
         write!(f, "{0} {1} {2}", self.token_type, self.lexeme, self.literal)
     }
 }
+
diff --git a/src/rlox/token_type.rs b/src/rlox/token_type.rs
index 37cd057..f9093f2 100644
--- a/src/rlox/token_type.rs
+++ b/src/rlox/token_type.rs
@@ -1,6 +1,6 @@
 
 
-#[derive(Debug, Copy, Clone)]
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
 pub enum TokenType {
     // Single-character tokens.
     LeftParen,
@@ -104,3 +104,21 @@ impl std::fmt::Display for TokenType {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use crate::rlox::token_type::TokenType;
+
+    #[test]
+    fn test_types() {
+        let t = TokenType::While;
+        assert_eq!(t, TokenType::While);
+        assert_eq!(format!("{}",t),String::from("WHILE"));
+
+        let t2 = TokenType::While;
+        let t3 = TokenType::Var;
+
+        assert_eq!(t, t2);
+        assert_ne!(t,t3);
+    }
+}
\ No newline at end of file