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libsyntax: remove unnecessary as_slice() calls

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This commit is contained in:
Jorge Aparicio
2014-11-27 15:00:50 -05:00
parent 60338d91c4
commit 39f44c0c20
7 changed files with 22 additions and 24 deletions
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5
src/libsyntax/parse/lexer/mod.rs
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@@ -265,7 +265,7 @@ impl<'a> StringReader<'a> {
/// Calls `f` with a string slice of the source text spanning from `start`
/// up to but excluding `end`.
fn with_str_from_to<T>(&self, start: BytePos, end: BytePos, f: |s: &str| -> T) -> T {
f(self.filemap.src.as_slice().slice(
f(self.filemap.src.slice(
self.byte_offset(start).to_uint(),
self.byte_offset(end).to_uint()))
}
@@ -321,7 +321,6 @@ impl<'a> StringReader<'a> {
let last_char = self.curr.unwrap();
let next = self.filemap
.src
.as_slice()
.char_range_at(current_byte_offset);
let byte_offset_diff = next.next - current_byte_offset;
self.pos = self.pos + Pos::from_uint(byte_offset_diff);
@@ -343,7 +342,7 @@ impl<'a> StringReader<'a> {
pub fn nextch(&self) -> Option<char> {
let offset = self.byte_offset(self.pos).to_uint();
if offset < self.filemap.src.len() {
Some(self.filemap.src.as_slice().char_at(offset))
Some(self.filemap.src.char_at(offset))
} else {
None
}