From 20decd8677debaed05f28cbf950eb25d3be6422e Mon Sep 17 00:00:00 2001
From: Natapat Samutpong <natapat.samutpong@gmail.com>
Date: Sat, 12 Feb 2022 18:51:43 +0700
Subject: [PATCH] optional semicolons!!

---
 example/hello_world.hyc |  9 +++++++--
 src/front/parser.rs     | 10 +++++-----
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/example/hello_world.hyc b/example/hello_world.hyc
index b397959..062bc84 100644
--- a/example/hello_world.hyc
+++ b/example/hello_world.hyc
@@ -1,5 +1,10 @@
 func join :: (a, b) = {
     let result :: String = from(a, b);
-    return result;
+    return result
 };
-let foo :: String = join("f", "oo");
\ No newline at end of file
+
+func main :: () = {
+    let foo :: String = join("f", "oo");
+    print(foo);
+    return 0
+};
\ No newline at end of file
diff --git a/src/front/parser.rs b/src/front/parser.rs
index 8aedf5c..8b7bf4a 100644
--- a/src/front/parser.rs
+++ b/src/front/parser.rs
@@ -1,7 +1,7 @@
 use nom::{
     branch::alt,
     bytes::complete::take,
-    combinator::{verify, map},
+    combinator::{verify, map, opt},
     Err,
     error::{Error, ErrorKind},
     IResult,
@@ -155,7 +155,7 @@ fn parse_return_stmt(input: Tokens) -> IResult<Tokens, Stmt> {
         delimited(
             tag_return,
             parse_expr_lowest,
-            tag_semicolon,
+            opt(tag_semicolon),
         ),
         Stmt::Return,
     )(input)
@@ -168,7 +168,7 @@ fn parse_call_stmt(input: Tokens) -> IResult<Tokens, Stmt> {
             tag_lparen,
             parse_exprs,
             tag_rparen,
-            tag_semicolon,
+            opt(tag_semicolon),
         )),
         |(ident, _, args, _, _)| Stmt::Call(ident, args),
     )(input)
@@ -189,7 +189,7 @@ fn parse_func_stmt(input: Tokens) -> IResult<Tokens, Stmt> {
             tag_rparen,
             tag_assign,
             parse_block_stmt,
-            tag_semicolon,
+            opt(tag_semicolon),
         )),
         |(_, ident, _, _, params, _, _, block, _)| Stmt::Func(ident, params, block),
     )(input)
@@ -204,7 +204,7 @@ fn parse_let_stmt(input: Tokens) -> IResult<Tokens, Stmt> {
             parse_ident,
             tag_assign,
             parse_expr_lowest,
-            tag_semicolon,
+            opt(tag_semicolon),
         )),
         |(_, ident, _, typehint, _, expr, _)| Stmt::Let(ident, typehint, expr),
     )(input)