curly_ braces_ in_ flow_ control_ structures
Statements in {0} should be enclosed in a block.
Description
#
The analyzer produces this diagnostic when a control structure (if
,
for
,
while
, or
do
statement) has a statement other than a block.
Example
#
The following code produces this diagnostic because the
then
statement
is not enclosed in a block:
int f(bool b) {
if (b)
return 1;
return 0;
}
Common fixes
#Add braces around the statement that should be a block:
int f(bool b) {
if (b) {
return 1;
}
return 0;
}
Unless stated otherwise, the documentation on this site reflects Dart 3.9.2. Page last updated on 2025-9-1. View source or report an issue.