From 710c2b22da0ad75408359050e5228103967c64d7 Mon Sep 17 00:00:00 2001
From: Delyan Angelov <delian66@gmail.com>
Date: Sun, 16 Oct 2022 10:42:53 +0300
Subject: [PATCH] parser: fix infinite loop for `type Handler = fn (test
 string) string` without newline at the end

---
 vlib/v/parser/parser.v                           | 6 ++++++
 vlib/v/parser/tests/type_fn_eof_on_same_line.out | 0
 vlib/v/parser/tests/type_fn_eof_on_same_line.vv  | 1 +
 3 files changed, 7 insertions(+)
 create mode 100644 vlib/v/parser/tests/type_fn_eof_on_same_line.out
 create mode 100644 vlib/v/parser/tests/type_fn_eof_on_same_line.vv

diff --git a/vlib/v/parser/parser.v b/vlib/v/parser/parser.v
index e4538cd87..583e988f2 100644
--- a/vlib/v/parser/parser.v
+++ b/vlib/v/parser/parser.v
@@ -471,6 +471,9 @@ fn (p &Parser) peek_token_after_var_list() token.Token {
 	mut n := 0
 	mut tok := p.tok
 	for {
+		if tok.kind == .eof {
+			break
+		}
 		if tok.kind == .key_mut {
 			n += 2
 		} else {
@@ -495,6 +498,9 @@ fn (p &Parser) is_fn_type_decl() bool {
 	cur_ln := p.tok.line_nr
 	for {
 		tok = p.scanner.peek_token(n)
+		if tok.kind == .eof {
+			break
+		}
 		if tok.kind in [.lpar, .rpar] {
 			n++
 			prev_tok = tok
diff --git a/vlib/v/parser/tests/type_fn_eof_on_same_line.out b/vlib/v/parser/tests/type_fn_eof_on_same_line.out
new file mode 100644
index 000000000..e69de29bb
diff --git a/vlib/v/parser/tests/type_fn_eof_on_same_line.vv b/vlib/v/parser/tests/type_fn_eof_on_same_line.vv
new file mode 100644
index 000000000..7665b0f09
--- /dev/null
+++ b/vlib/v/parser/tests/type_fn_eof_on_same_line.vv
@@ -0,0 +1 @@
+type Handler = fn (test string) string
\ No newline at end of file
-- 
2.39.5