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体验新版 GitCode,发现更多精彩内容 >>
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8a458957
编写于
10月 24, 2016
作者:
A
Alex Dima
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电子邮件补丁
差异文件
Prepare decodeTextMateToken for returning modeId (#14136)
上级
6790d0ad
变更
1
显示空白变更内容
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并排
Showing
1 changed file
with
69 addition
and
32 deletion
+69
-32
src/vs/editor/node/textMate/TMSyntax.ts
src/vs/editor/node/textMate/TMSyntax.ts
+69
-32
未找到文件。
src/vs/editor/node/textMate/TMSyntax.ts
浏览文件 @
8a458957
...
...
@@ -248,6 +248,53 @@ export class TMScopeDecodeData {
}
}
/**
* Data associated with a stack of text mate scopes as part of decoding.
*/
export
class
TMScopesDecodeData
{
_tmScopesDecodeDataBrand
:
void
;
/**
* The last scope in the stack.
*/
public
readonly
scope
:
string
;
/**
* The resolved tokens mask.
* tokens[i] === true ===> token with id i is present.
*/
public
readonly
tokensMask
:
boolean
[];
/**
* The resolved language.
*/
private
readonly
language
:
string
;
constructor
(
parent
:
TMScopesDecodeData
,
scope
:
TMScopeDecodeData
)
{
// 1) Inherit data from `parent`.
let
tokensMask
:
boolean
[];
let
language
:
string
;
if
(
parent
)
{
tokensMask
=
parent
.
tokensMask
.
slice
(
0
);
language
=
parent
.
language
;
}
else
{
tokensMask
=
[];
language
=
null
;
}
// 2) Overwrite with data from `scope`.
let
scopeTokenIds
=
scope
.
tokenIds
;
for
(
let
i
=
0
,
len
=
scopeTokenIds
.
length
;
i
<
len
;
i
++
)
{
tokensMask
[
scopeTokenIds
[
i
]]
=
true
;
}
if
(
scope
.
language
)
{
language
=
scope
.
language
;
}
this
.
scope
=
scope
.
scope
;
this
.
tokensMask
=
tokensMask
;
this
.
language
=
language
;
}
}
export
class
DecodeMap
{
_decodeMapBrand
:
void
;
...
...
@@ -256,7 +303,7 @@ export class DecodeMap {
private
readonly
scopeToTokenIds
:
{
[
scope
:
string
]:
TMScopeDecodeData
;
};
private
readonly
tokenToTokenId
:
{
[
token
:
string
]:
number
;
};
private
readonly
tokenIdToToken
:
string
[];
prevToken
:
TMTokenDecodeData
;
prevToken
Scopes
:
TMScopesDecodeData
[]
;
constructor
(
scopeRegistry
:
TMScopeRegistry
)
{
this
.
lastAssignedTokenId
=
0
;
...
...
@@ -264,7 +311,7 @@ export class DecodeMap {
this
.
scopeToTokenIds
=
Object
.
create
(
null
);
this
.
tokenToTokenId
=
Object
.
create
(
null
);
this
.
tokenIdToToken
=
[
null
];
this
.
prevToken
=
new
TMTokenDecodeData
([],
[])
;
this
.
prevToken
Scopes
=
[]
;
}
private
_getTokenId
(
token
:
string
):
number
{
...
...
@@ -313,18 +360,6 @@ export class DecodeMap {
}
}
export
class
TMTokenDecodeData
{
_tmTokenDecodeDataBrand
:
void
;
public
readonly
scopes
:
string
[];
public
readonly
scopeTokensMaps
:
boolean
[][];
constructor
(
scopes
:
string
[],
scopeTokensMaps
:
boolean
[][])
{
this
.
scopes
=
scopes
;
this
.
scopeTokensMaps
=
scopeTokensMaps
;
}
}
function
depth
(
stackElement
:
StackElement
):
number
{
let
result
=
0
;
while
(
stackElement
)
{
...
...
@@ -390,34 +425,36 @@ export function decodeTextMateTokens(line: string, offsetDelta: number, decodeMa
}
export
function
decodeTextMateToken
(
decodeMap
:
DecodeMap
,
scopes
:
string
[]):
string
{
const
prevTokenScopes
=
decodeMap
.
prevToken
.
scopes
;
if
(
scopes
.
length
<=
1
)
{
// fast case
return
''
;
}
const
prevTokenScopes
=
decodeMap
.
prevTokenScopes
;
const
prevTokenScopesLength
=
prevTokenScopes
.
length
;
const
prevTokenScopeTokensMaps
=
decodeMap
.
prevToken
.
scopeTokensMaps
;
let
scopeTokensMaps
:
boolean
[][]
=
[];
let
prevScopeTokensMaps
:
boolean
[]
=
[];
let
resultScopes
:
TMScopesDecodeData
[]
=
[
null
];
let
lastResultScope
:
TMScopesDecodeData
=
null
;
let
sameAsPrev
=
true
;
for
(
let
level
=
1
/* deliberately skip scope 0*/
,
scopesLength
=
scopes
.
length
;
level
<
scopesLength
;
level
++
)
{
let
scope
=
scopes
[
level
];
if
(
sameAsPrev
)
{
if
(
level
<
prevTokenScopesLength
&&
prevTokenScopes
[
level
]
===
scope
)
{
prevScopeTokensMaps
=
prevTokenScopeTokensMaps
[
level
];
scopeTokensMaps
[
level
]
=
prevScopeTokensMaps
;
if
(
sameAsPrev
&&
level
<
prevTokenScopesLength
)
{
let
prevTokenScope
=
prevTokenScopes
[
level
];
if
(
prevTokenScope
.
scope
===
scope
)
{
// continue reusing the results of the previous token's computation
lastResultScope
=
prevTokenScope
;
resultScopes
[
level
]
=
lastResultScope
;
continue
;
}
sameAsPrev
=
false
;
}
sameAsPrev
=
false
;
let
decodedScope
=
decodeMap
.
decodeTMScope
(
scope
);
let
decodedScopeTokens
=
decodedScope
.
tokenIds
;
prevScopeTokensMaps
=
prevScopeTokensMaps
.
slice
(
0
);
for
(
let
i
=
0
,
len
=
decodedScopeTokens
.
length
;
i
<
len
;
i
++
)
{
prevScopeTokensMaps
[
decodedScopeTokens
[
i
]]
=
true
;
}
scopeTokensMaps
[
level
]
=
prevScopeTokensMaps
;
lastResultScope
=
new
TMScopesDecodeData
(
lastResultScope
,
decodeMap
.
decodeTMScope
(
scope
));
resultScopes
[
level
]
=
lastResultScope
;
}
decodeMap
.
prevToken
=
new
TMTokenDecodeData
(
scopes
,
scopeTokensMaps
)
;
return
decodeMap
.
getToken
(
prevScopeTokensMaps
);
decodeMap
.
prevToken
Scopes
=
resultScopes
;
return
decodeMap
.
getToken
(
lastResultScope
.
tokensMask
);
}
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