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PR #23272 review nits

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This commit is contained in:
Simon Sapin 2019-05-22 19:59:33 +02:00
parent 14c8bbb49d
commit 5d3fc37e26
1 changed files with 3 additions and 15 deletions
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18
components/script/textinput.rs
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@ -52,14 +52,6 @@ impl UTF8Bytes {
UTF8Bytes::zero()
}
}
pub fn saturating_sub_assign(&mut self, other: UTF8Bytes) {
if *self > other {
*self = UTF8Bytes(self.0 + other.0)
} else {
*self = UTF8Bytes::zero()
}
}
}
impl Add for UTF8Bytes {
@ -231,8 +223,6 @@ pub const CMD_OR_CONTROL: Modifiers = Modifiers::META;
#[cfg(not(target_os = "macos"))]
pub const CMD_OR_CONTROL: Modifiers = Modifiers::CONTROL;
// FIXME this function does not behave as described (if given string has fewer than n
// characters, it returns 0, not the length of the whole string.
/// The length in bytes of the first n characters in a UTF-8 string.
///
/// If the string has fewer than n characters, returns the length of the whole string.
@ -396,9 +386,8 @@ impl<T: ClipboardProvider> TextInput<T> {
self.edit_point, self.selection_origin, self.selection_direction
);
if let Some(begin) = self.selection_origin {
let UTF8Bytes(begin_offset) = begin.index;
debug_assert!(begin.line < self.lines.len());
debug_assert!(begin_offset <= self.lines[begin.line].len());
debug_assert!(begin.index <= self.lines[begin.line].len_utf8());
match self.selection_direction {
SelectionDirection::None | SelectionDirection::Forward => {
@ -409,9 +398,8 @@ impl<T: ClipboardProvider> TextInput<T> {
}
}
let UTF8Bytes(edit_offset) = self.edit_point.index;
debug_assert!(self.edit_point.line < self.lines.len());
debug_assert!(edit_offset <= self.lines[self.edit_point.line].len());
debug_assert!(self.edit_point.index <= self.lines[self.edit_point.line].len_utf8());
}
pub fn get_selection_text(&self) -> Option<String> {
@ -1081,7 +1069,7 @@ impl<T: ClipboardProvider> TextInput<T> {
let line_end = val.len_utf8();
let new_acc = acc + line_end + UTF8Bytes::one();
if abs_point >= new_acc && index > line_end {
index.saturating_sub_assign(line_end + UTF8Bytes::one());
index = index.saturating_sub(line_end + UTF8Bytes::one());
line += 1;
}
new_acc