C compilation error when using string concatenation with autofree

[dy-tea]

Describe the bug

Wanted to see if autofree would work with my personal project. It is pure V and only depends on the V standard library.

Reproduction Steps

See my repo here: https://github.com/dy-tea/rr-dl
It does compile with v run build.vsh or simply v .
It also successfully compiles with v -prealloc .
It does not compile with v -autofree .

Expected Behavior

Should compile

Current Behavior

================== C compilation error (from tcc): ==============
cc: /tmp/v_1000/main.01JEEZGQD4AGT5628VEM39GYVR.tmp.c:22839: error: '{' expected (got ")")
=================================================================
(You can pass `-cg`, or `-show-c-output` as well, to print all the C error messages).
builder error: 
==================
C error found. It should never happen, when compiling pure V code.
This is a V compiler bug, please report it using `v bug file.v`,
or goto https://github.com/vlang/v/issues/new/choose .
You can also use #help on Discord: https://discord.gg/vlang .

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.8 de3b184

Environment details (OS name and version, etc.)

V full version: V 0.4.8 de3b184
OS: linux, "CachyOS"
Processor: 12 cpus, 64bit, little endian, 13th Gen Intel(R) Core(TM) i5-1335U

getwd: /home/dylan/Repos/rr-dl
vexe: /home/dylan/Repos/v/v
vexe mtime: 2024-12-06 21:50:48

vroot: OK, value: /home/dylan/Repos/v
VMODULES: OK, value: /home/dylan/.vmodules
VTMP: OK, value: /tmp/v_1000

Git version: git version 2.47.1
Git vroot status: weekly.2024.49-32-gde3b184b
.git/config present: true

CC version: cc (GCC) 14.2.1 20240910
emcc version: N/A
thirdparty/tcc status: thirdparty-linux-amd64 0134e9b9

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_{Huly®: V_0.6-21520}

[felipensp]

As temporary workaround:

diff --git a/src/main.v b/src/main.v
index 25fd6f7..5fe13ab 100644
--- a/src/main.v
+++ b/src/main.v
@@ -119,9 +119,10 @@ fn main() {
 	// Print fiction info
 	println('') // Leave space before and after print
 	for i, _ in fiction_titles {
-		println(term.hex(color_4, '[') + term.hex(color_2, '${i}') + term.hex(color_4, ']') +
+		t := term.hex(color_4, '[') + term.hex(color_2, '${i}') + term.hex(color_4, ']') +
 			term.hex(color_5, ' ${fiction_titles[i]} ') +
-			term.hex(color_1, '(${fiction_chapter_counts[i]})'))
+			term.hex(color_1, '(${fiction_chapter_counts[i]})')
+		println(t)
 	}
 	println('')
 
@@ -173,9 +174,10 @@ fn main() {
 	}
 
 	// Print some fancy stuff
-	print(term.hex(color_5, '\n${royal_road}') + term.hex(color_3, '\n\n${selected_fiction}') +
+	t := term.hex(color_5, '\n${royal_road}') + term.hex(color_3, '\n\n${selected_fiction}') +
 		term.hex(color_1, '\n${selected_fiction_chapter_count}\n\n') +
-		term.hex(color_3, 'Latest Chapter:') + term.hex(color_1, '\n${chapter_titles.last()}\n\n'))
+		term.hex(color_3, 'Latest Chapter:') + term.hex(color_1, '\n${chapter_titles.last()}\n\n')
+	print(t)
 
 	// Define initial chapter ranges and select all or none
 	mut chapter_begin := if is_select_all { 0 } else { -1 }
@@ -200,8 +202,9 @@ fn main() {
 		}
 
 		for i, n in chapter_search {
-			println(term.hex(color_4, '[') + term.hex(color_2, '${i}') + term.hex(color_4, ']') +
-				term.hex(color_5, ' ${chapter_titles[n]}'))
+			t2 := term.hex(color_4, '[') + term.hex(color_2, '${i}') + term.hex(color_4, ']') +
+				term.hex(color_5, ' ${chapter_titles[n]}')
+			println(t2)
 		}
 
 		chapter_begin_str := if chapter_search.len == 1 { '0' } else { os.input_opt(term.hex(color_3, '\nSelect start chapter by index / first result: ')) or {
@@ -225,8 +228,9 @@ fn main() {
 		}
 
 		for i, n in chapter_search_end {
-			println(term.hex(color_4, '[') + term.hex(color_2, '${i}') + term.hex(color_4, ']') +
-				term.hex(color_5, ' ${chapter_titles[n]}'))
+			t3 := term.hex(color_4, '[') + term.hex(color_2, '${i}') + term.hex(color_4, ']') +
+				term.hex(color_5, ' ${chapter_titles[n]}')
+			println(t3)
 		}
 
 		chapter_end_str := if chapter_search_end.len == 1 { '' } else { os.input_opt(term.hex(color_3, '\nSelect end chapter by index / single chapter: ')) or {
@@ -256,12 +260,14 @@ fn main() {
 	// Chapter ranges
 	mut range := []int{}
 	if chapter_begin == chapter_end {
-		println(term.hex(color_5, 'Downloading chapter') + term.hex(color_3, ' ${chapter_begin}'))
+		t4 := term.hex(color_5, 'Downloading chapter') + term.hex(color_3, ' ${chapter_begin}')
+		println(t4)
 		range << chapter_begin
 	} else {
-		println(term.hex(color_5, 'Downloading chapters') +
+		t5 := term.hex(color_5, 'Downloading chapters') +
 			term.hex(color_3, ' ${chapter_begin} ') + term.hex(color_5, 'to') +
-			term.hex(color_3, ' ${chapter_end}') + term.hex(color_5, ':'))
+			term.hex(color_3, ' ${chapter_end}') + term.hex(color_5, ':')
+		println(t5)
 		for i in chapter_begin .. chapter_end + 1 { // For loops cannot loop inclusively
 			range << i // This is very dumb
 		}
@@ -274,8 +280,10 @@ fn main() {
 	for i in range {
 		chapter_link := base_url + selected_href + '/chapter/' + chapter_ids[i] + '/' +
 			chapter_slugs[i]
-		println(term.hex(color_5, 'Downloading:') + ' ${term.hex(color_3, chapter_titles[i])}')
-		println(term.hex(color_3, 'Link:') + ' ${term.hex(color_1, chapter_link)}')
+		t6 := term.hex(color_5, 'Downloading:') + ' ${term.hex(color_3, chapter_titles[i])}'
+		println(t6)
+		t7 := term.hex(color_3, 'Link:') + ' ${term.hex(color_1, chapter_link)}'
+		println(t7)
 
 		resp_chapter := http.get_text(chapter_link)
 
@@ -314,13 +322,15 @@ fn main() {
 		}
 
 		if os.is_writable(download_directory) {
-			os.write_file(download_directory + '/' + name_chapter(chapter_titles[i]) + '.' +
-				file_extension, chapter_content) or { panic(err) }
+			t8 := download_directory + '/' + name_chapter(chapter_titles[i]) + '.' +
+				file_extension
+			os.write_file(t8, chapter_content) or { panic(err) }
 		} else {
 			panic(term.fail_message('ERROR: Insufficient permissons to write to specified directory'))
 		}
 	}
 	// Print elapsed time during downloade
-	println(term.hex(color_3, '\nFinished download in ') +
-		term.hex(color_1, '${download_timer.elapsed().milliseconds()}') + term.hex(color_3, 'ms'))
+	t9 := term.hex(color_3, '\nFinished download in ') +
+		term.hex(color_1, '${download_timer.elapsed().milliseconds()}') + term.hex(color_3, 'ms')
+	println(t9)
 }