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Fix off-by-one error in assert_eq! line wrapping

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If two really long conditions are checked for equality, they wouldn't be split
into multiple lines if the last condition is the one to push the line past the
width limit.

Fix the off-by-one error that caused this, and add a test-case for it.
This commit is contained in:
David Wood
2017-12-23 01:32:55 +00:00
parent e343521276
commit ef8b2efd13
3 changed files with 10 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/expr.rs
+3 -3
View File
@@ -2081,7 +2081,7 @@ fn try_overflow_last_arg<'a, T>(
{
let one_line_before = all_simple_before
&& definitive_tactic(
&item_vec[..num_args_before - 1],
&item_vec[..num_args_before],
ListTactic::HorizontalVertical,
Separator::Comma,
nested_shape.width,
@@ -2140,8 +2140,8 @@ fn maybe_get_args_offset<T: ToExpr>(callee_str: &str, args: &[&T]) -> Option<(bo
.iter()
.find(|&&(s, _)| s == callee_str)
{
let all_simple_before = num_args_before >= 1 && args.len() >= num_args_before
&& is_every_args_simple(&args[..num_args_before]);
let all_simple_before =
args.len() >= num_args_before && is_every_args_simple(&args[..num_args_before]);
let all_simple_after =
args.len() >= num_args_before + 1 && is_every_args_simple(&args[num_args_before + 1..]);
tests/source/macros.rs
+1
View File
@@ -272,6 +272,7 @@ fn special_case_macros() {
assert_eq!(left, right, "Ahoy there, {}!", target);
assert_eq!(left, right, "Arr! Batten down the hatches, we got '{}' but not '{}' (we expected '{}')", result, input, expected);
assert_eq!(first_realllllllllllly_long_variable_that_doesnt_fit_one_one_line, second_reallllllllllly_long_variable_that_doesnt_fit_one_one_line, "Arr! Batten down the hatches, we got '{}' but not '{}' (we expected '{}')", result, input, expected);
assert_eq!(left + 42, right, "Arr! Batten down the hatches, we got '{}' but not '{}' (we expected '{}')", result, input, expected);
assert_eq!(left, right, "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);
tests/target/macros.rs
+6
View File
@@ -734,6 +734,12 @@ fn special_case_macros() {
"Arr! Batten down the hatches, we got '{}' but not '{}' (we expected '{}')",
result, input, expected
);
assert_eq!(
first_realllllllllllly_long_variable_that_doesnt_fit_one_one_line,
second_reallllllllllly_long_variable_that_doesnt_fit_one_one_line,
"Arr! Batten down the hatches, we got '{}' but not '{}' (we expected '{}')",
result, input, expected
);
assert_eq!(
left + 42,
right,