Merge pull request #18 from tomoyanonymous/fix-parser

Fixed parser to ignore first line breaks and semicolons

mimium-lang/src/compiler/parser.rs

@@ -278,8 +278,8 @@ fn expr_parser() -> impl Parser<Token, WithMeta<Expr>, Error = Simple<Token>> +
     expr_group
 }
 fn comment_parser() -> impl Parser<Token, (), Error = Simple<Token>> + Clone {
-    select! {Token::Comment(Comment::SingleLine(_))=>(),
-    Token::Comment(Comment::MultiLine(_))=>()}
+    select! {Token::Comment(Comment::SingleLine(t))=>(),
+    Token::Comment(Comment::MultiLine(t))=>()}
 }
 fn func_parser() -> impl Parser<Token, WithMeta<Expr>, Error = Simple<Token>> + Clone {
     let expr = expr_parser();
@@ -377,8 +377,9 @@ fn func_parser() -> impl Parser<Token, WithMeta<Expr>, Error = Simple<Token>> +
 }
 
 fn parser() -> impl Parser<Token, WithMeta<Expr>, Error = Simple<Token>> + Clone {
+    let ignored =comment_parser().or(just(Token::LineBreak).ignored()).or(just(Token::SemiColon).ignored());
     func_parser()
-        .padded_by(comment_parser().repeated().ignored())
+        .padded_by(ignored.repeated())
         .then_ignore(end())
 }
 pub(crate) fn add_global_context(ast: WithMeta<Expr>) -> WithMeta<Expr> {

mimium-lang/tests/intergration_test.rs

@@ -66,6 +66,13 @@ fn run_file_test(path: &str, times: u64) -> Result<Vec<f64>, ()> {
     }
 }
 
+#[test]
+fn parser_firstbreak(){
+    let res = run_file_test("parser_firstbreak.mmm", 1).unwrap();
+    let ans = vec![0.0];
+    assert_eq!(res, ans);
+}
+
 #[test]
 fn recursion() {
     let res = run_file_test("recursion.mmm", 1).unwrap();

mimium-lang/tests/mmm/parser_firstbreak.mmm

@@ -0,0 +1,9 @@
+
+
+;;;
+;
+
+//this file ensures the line break and semicolons before initial meaningful statements are ignored by the parser.
+fn dsp(){
+    0.0
+}