Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
int
Rust
提交
0bd96671
R
Rust
项目概览
int
/
Rust
11 个月 前同步成功
通知
1
Star
0
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
0
列表
看板
标记
里程碑
合并请求
0
DevOps
流水线
流水线任务
计划
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
R
Rust
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
0
Issue
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
DevOps
DevOps
流水线
流水线任务
计划
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
流水线任务
提交
Issue看板
体验新版 GitCode,发现更多精彩内容 >>
未验证
提交
0bd96671
编写于
1月 27, 2018
作者:
D
David Wood
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Fixed infinite loop issues and added some improved logging.
上级
0c467d5d
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
20 addition
and
6 deletion
+20
-6
src/libsyntax/codemap.rs
src/libsyntax/codemap.rs
+20
-6
未找到文件。
src/libsyntax/codemap.rs
浏览文件 @
0bd96671
...
...
@@ -638,25 +638,33 @@ pub fn next_point(&self, sp: Span) -> Span {
fn
find_width_of_character_at_span
(
&
self
,
sp
:
Span
,
forwards
:
bool
)
->
u32
{
// Disregard malformed spans and assume a one-byte wide character.
if
sp
.lo
()
>=
sp
.hi
()
{
debug!
(
"find_width_of_character_at_span: early return malformed span"
);
return
1
;
}
let
local_begin
=
self
.lookup_byte_offset
(
sp
.lo
());
let
local_end
=
self
.lookup_byte_offset
(
sp
.hi
());
debug!
(
"find_width_of_character_at_span: local_begin=`{:?}`, local_end=`{:?}`"
,
local_begin
,
local_end
);
let
start_index
=
local_begin
.pos
.to_usize
();
let
end_index
=
local_end
.pos
.to_usize
();
debug!
(
"find_width_of_character_at_span: start_index=`{:?}`, end_index=`{:?}`"
,
start_index
,
end_index
);
// Disregard indexes that are at the start or end of their spans, they can't fit bigger
// characters.
if
(
!
forwards
&&
end_index
==
usize
::
min_value
())
||
(
forwards
&&
start_index
==
usize
::
max_value
())
{
debug!
(
"find_width_of_character_at_span: start or end of span, cannot be multibyte"
);
return
1
;
}
let
source_len
=
(
local_begin
.fm.end_pos
-
local_begin
.fm.start_pos
)
.to_usize
();
debug!
(
"find_width_of_character_at_span: source_len=`{:?}`"
,
source_len
);
// Ensure indexes are also not malformed.
if
start_index
>
end_index
||
end_index
>
source_len
{
debug!
(
"find_width_of_character_at_span: source indexes are malformed"
);
return
1
;
}
...
...
@@ -671,16 +679,22 @@ fn find_width_of_character_at_span(&self, sp: Span, forwards: bool) -> u32 {
}
else
{
return
1
;
};
debug!
(
"DTW start {:?} end {:?}"
,
start_index
,
end_index
);
debug!
(
"DTW snippet {:?}"
,
snippet
);
debug!
(
"find_width_of_character_at_span: snippet=`{:?}`"
,
snippet
);
let
file_start_pos
=
local_begin
.fm.start_pos
.to_usize
();
let
file_end_pos
=
local_begin
.fm.end_pos
.to_usize
();
debug!
(
"find_width_of_character_at_span: file_start_pos=`{:?}` file_end_pos=`{:?}`"
,
file_start_pos
,
file_end_pos
);
let
mut
target
=
if
forwards
{
end_index
+
1
}
else
{
end_index
-
1
};
debug!
(
"DTW initial target {:?}"
,
target
);
while
!
snippet
.is_char_boundary
(
target
-
start_index
)
{
debug!
(
"find_width_of_character_at_span: initial target=`{:?}`"
,
target
);
while
!
snippet
.is_char_boundary
(
target
-
start_index
)
&&
target
>=
file_start_pos
&&
target
<=
file_end_pos
{
target
=
if
forwards
{
target
+
1
}
else
{
target
-
1
};
debug!
(
"
DTW update target {:?}
"
,
target
);
debug!
(
"
find_width_of_character_at_span: target=`{:?}`
"
,
target
);
}
debug!
(
"
DTW final target {:?}
"
,
target
);
debug!
(
"
find_width_of_character_at_span: final target=`{:?}`
"
,
target
);
if
forwards
{
(
target
-
end_index
)
as
u32
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录