fmt: better ternary concat wrapping (#8379)

vlib/bitfield/bitfield.v

@@ -353,8 +353,7 @@ pub fn (input BitField) slice(_start int, _end int) BitField {
 		if start_offset != 0 {
 			for i in 0 .. output_slots - 1 {
 				output.field[i] = u32(input.field[start_slot + i] >> u32(start_offset))
-				output.field[i] = output.field[i] | u32(input.field[start_slot + i +
-					1] << u32(bitfield.slot_size - start_offset))
+				output.field[i] = output.field[i] | u32(input.field[start_slot + i + 1] << u32(bitfield.slot_size - start_offset))
 			}
 		} else {
 			for i in 0 .. output_slots - 1 {

vlib/builtin/array_test.v

@@ -387,16 +387,22 @@ fn test_mutli_array_clone() {
 	mut a3_2 := a3_1.clone()
 	a3_1[0][0][1] = 0
 	a3_2[0][1][0] = 0
-	assert a3_1 == [[[1, 0], [2, 2], [3, 3]], [[4, 4], [5, 5], [6, 6]]]
-	assert a3_2 == [[[1, 1], [0, 2], [3, 3]], [[4, 4], [5, 5], [6, 6]]]
+	assert a3_1 == [[[1, 0], [2, 2], [3, 3]], [[4, 4], [5, 5],
+		[6, 6],
+	]]
+	assert a3_2 == [[[1, 1], [0, 2], [3, 3]], [[4, 4], [5, 5],
+		[6, 6],
+	]]
 	// 3d array_string
 	mut b3_1 := [[['1', '1'], ['2', '2'], ['3', '3']], [['4', '4'],
 		['5', '5'], ['6', '6']]]
 	mut b3_2 := b3_1.clone()
 	b3_1[0][0][1] = '0'
 	b3_2[0][1][0] = '0'
-	assert b3_1 == [[['1', '0'], ['2', '2'], ['3', '3']], [['4', '4'], ['5', '5'], ['6', '6']]]
-	assert b3_2 == [[['1', '1'], ['0', '2'], ['3', '3']], [['4', '4'], ['5', '5'], ['6', '6']]]
+	assert b3_1 == [[['1', '0'], ['2', '2'], ['3', '3']], [['4', '4'],
+		['5', '5'], ['6', '6']]]
+	assert b3_2 == [[['1', '1'], ['0', '2'], ['3', '3']], [['4', '4'],
+		['5', '5'], ['6', '6']]]
 }
 
 fn test_doubling() {

vlib/time/time_test.v

@@ -87,12 +87,14 @@ fn test_format_ss() {
 }
 
 fn test_format_ss_milli() {
-	assert '11.07.1980 21:23:42.123' == time_to_test.get_fmt_str(.dot, .hhmmss24_milli, .ddmmyyyy)
+	assert '11.07.1980 21:23:42.123' == time_to_test.get_fmt_str(.dot, .hhmmss24_milli,
+		.ddmmyyyy)
 	assert '1980-07-11 21:23:42.123' == time_to_test.format_ss_milli()
 }
 
 fn test_format_ss_micro() {
-	assert '11.07.1980 21:23:42.123456' == time_to_test.get_fmt_str(.dot, .hhmmss24_micro, .ddmmyyyy)
+	assert '11.07.1980 21:23:42.123456' == time_to_test.get_fmt_str(.dot, .hhmmss24_micro,
+		.ddmmyyyy)
 	assert '1980-07-11 21:23:42.123456' == time_to_test.format_ss_micro()
 }
 

vlib/v/builder/compile.v

@@ -188,9 +188,11 @@ pub fn (v Builder) get_builtin_files() []string {
 		if os.exists(os.join_path(location, 'builtin')) {
 			mut builtin_files := []string{}
 			if v.pref.is_bare {
-				builtin_files << v.v_files_from_dir(os.join_path(location, 'builtin', 'bare'))
+				builtin_files << v.v_files_from_dir(os.join_path(location, 'builtin',
+					'bare'))
 			} else if v.pref.backend == .js {
-				builtin_files << v.v_files_from_dir(os.join_path(location, 'builtin', 'js'))
+				builtin_files << v.v_files_from_dir(os.join_path(location, 'builtin',
+					'js'))
 			} else {
 				builtin_files << v.v_files_from_dir(os.join_path(location, 'builtin'))
 			}

vlib/v/checker/checker.v

@@ -2409,7 +2409,8 @@ pub fn (mut c Checker) assign_stmt(mut assign_stmt ast.AssignStmt) {
 		if assign_stmt.right_types.len < assign_stmt.left.len { // first type or multi return types added above
 			right_type := c.expr(assign_stmt.right[i])
 			if assign_stmt.right_types.len == i {
-				assign_stmt.right_types << c.check_expr_opt_call(assign_stmt.right[i], right_type)
+				assign_stmt.right_types << c.check_expr_opt_call(assign_stmt.right[i],
+					right_type)
 			}
 		}
 		right := if i < assign_stmt.right.len { assign_stmt.right[i] } else { assign_stmt.right[0] }

vlib/v/fmt/fmt.v

@@ -695,8 +695,7 @@ pub fn (mut f Fmt) struct_decl(node ast.StructDecl) {
 						comment_align_i++
 						align = comment_aligns[comment_align_i]
 					}
-					pad_len := align.max_attrs_len - attrs_len +
-						align.max_type_len - field_types[i].len
+					pad_len := align.max_attrs_len - attrs_len + align.max_type_len - field_types[i].len
 					f.write(strings.repeat(` `, pad_len))
 				}
 				f.write(' ')
@@ -1449,7 +1448,7 @@ pub fn (mut f Fmt) lock_expr(lex ast.LockExpr) {
 
 pub fn (mut f Fmt) infix_expr(node ast.InfixExpr) {
 	buffering_save := f.buffering
-	if !f.buffering {
+	if !f.buffering && node.op in [.logical_or, .and, .plus] {
 		f.buffering = true
 	}
 	if node.op == .left_shift {
@@ -1587,8 +1586,9 @@ pub fn (mut f Fmt) if_expr(it ast.IfExpr) {
 				f.write(' ')
 			}
 		}
-		// When a single line if is really long, write it again as multiline
-		if single_line && f.line_len > fmt.max_len.last() {
+		// When a single line if is really long, write it again as multiline,
+		// except it is part of an InfixExpr.
+		if single_line && f.line_len > fmt.max_len.last() && !f.buffering {
 			single_line = false
 			f.single_line_if = false
 			f.out.go_back(f.line_len - if_start)

vlib/v/fmt/tests/concat_expr_expected.vv

@@ -15,3 +15,10 @@ fn concat_inside_ternary() {
 		}
 	}
 }
+
+fn concat_two_or_more_ternaries() {
+	x := if some_condition { 'very long string part' } else { 'def' } +
+		if y == 'asd' { 'qwe' } else { 'something else' }
+	var := if other_condition { 'concat three long ternary ifs' } else { 'def' } +
+		if true { 'shorter' } else { 'quite short' } + if true { 'small' } else { 'tiny' }
+}

vlib/v/fmt/tests/concat_expr_input.vv

@@ -15,3 +15,8 @@ fn concat_inside_ternary() {
 		}
 	}
 }
+
+fn concat_two_or_more_ternaries() {
+	x := if some_condition { 'very long string part' } else { 'def' } + if y == 'asd' { 'qwe' } else {'something else'}
+	var := if other_condition { 'concat three long ternary ifs' } else { 'def' } + if true {'shorter'} else {'quite short'} + if true { 'small' } else {'tiny'}
+}

vlib/v/gen/auto_str_methods.v

@@ -40,7 +40,9 @@ fn (g &Gen) type_to_fmt(typ table.Type) string {
 	sym := g.table.get_type_symbol(typ)
 	if typ.is_ptr() && (typ.is_int() || typ.is_float()) {
 		return '%.*s\\000'
-	} else if sym.kind in [.struct_, .array, .array_fixed, .map, .bool, .enum_, .interface_, .sum_type, .function] {
+	} else if sym.kind in [.struct_, .array, .array_fixed, .map, .bool, .enum_, .interface_, .sum_type,
+		.function,
+	] {
 		return '%.*s\\000'
 	} else if sym.kind == .string {
 		return "'%.*s\\000'"

vlib/v/gen/json.v

@@ -202,7 +202,9 @@ fn js_dec_name(typ string) string {
 }
 
 fn is_js_prim(typ string) bool {
-	return typ in ['int', 'string', 'bool', 'f32', 'f64', 'i8', 'i16', 'i64', 'u16', 'u32', 'u64', 'byte']
+	return typ in ['int', 'string', 'bool', 'f32', 'f64', 'i8', 'i16', 'i64', 'u16', 'u32', 'u64',
+		'byte',
+	]
 }
 
 fn (mut g Gen) decode_array(value_type table.Type) string {

vlib/v/util/diff.v

@@ -12,7 +12,8 @@ pub fn find_working_diff_command() ?string {
 	if env_difftool.len > 0 {
 		known_diff_tools << env_difftool
 	}
-	known_diff_tools << ['colordiff', 'gdiff', 'diff', 'colordiff.exe', 'diff.exe', 'opendiff', 'code', 'code.cmd']
+	known_diff_tools << ['colordiff', 'gdiff', 'diff', 'colordiff.exe', 'diff.exe', 'opendiff',
+		'code', 'code.cmd']
 	// NOTE: code.cmd is the Windows variant of the `code` cli tool
 	for diffcmd in known_diff_tools {
 		if diffcmd == 'opendiff' { // opendiff has no `--version` option

vlib/x/websocket/websocket_client.v

@@ -232,11 +232,8 @@ pub fn (mut ws Client) write_ptr(bytes byteptr, payload_len int, code OPCode) ?
 		// todo: send error here later
 		return error('trying to write on a closed socket!')
 	}
-	mut header_len := 2 + if payload_len > 125 { 2 } else { 0 } + if payload_len > 0xffff {
-		6
-	} else {
-		0
-	}
+	mut header_len := 2 + if payload_len > 125 { 2 } else { 0 } +
+		if payload_len > 0xffff { 6 } else { 0 }
 	if !ws.is_server {
 		header_len += 4
 	}