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README.md
webpack-sources
Contains multiple classes which represent a Source
. A Source
can be asked for source code, size, source map and hash.
Source
Base class for all sources.
Public methods
All methods should be considered as expensive as they may need to do computations.
source
Source.prototype.source() -> String | ArrayBuffer
Returns the represented source code as string.
size
Source.prototype.size() -> Number
Returns the size in chars of the represented source code.
map
Source.prototype.map(options: Object) -> Object | null
Returns the SourceMap of the represented source code as JSON. May return null
if no SourceMap is available.
The options
object can contain the following keys:
columns: Boolean
(defaulttrue
): If set to false the implementation may omit mappings for columns.module: Boolean
(defaulttrue
): If set to false the implementation may omit inner mappings for modules.
sourceAndMap
Source.prototype.sourceAndMap(options: Object) -> {
source: String,
map: Object
}
Returns both, source code (like Source.prototype.source()
and SourceMap (like Source.prototype.map()
). This method could have better performance than calling source()
and map()
separately.
See map()
for options
.
updateHash
Source.prototype.updateHash(hash: Hash) -> void
Updates the provided Hash
object with the content of the represented source code. (Hash
is an object with an update
method, which is called with string values)
node
(optional)
Source.prototype.node(options: Object) -> SourceNode
This is an optional method. It may be null
if not implemented.
Returns a SourceNode
(see source-map library) for the represented source code.
See map()
for options
.
listNode
(optional)
Source.prototype.listNode(options: Object) -> SourceNode
This is an optional method. It may be null
if not implemented.
Returns a SourceListMap
(see source-list-map library) for the represented source code.
See map()
for options
.
RawSource
Represents source code without SourceMap.
new RawSource(sourceCode: String)
OriginalSource
Represents source code, which is a copy of the original file.
new OriginalSource(
sourceCode: String,
name: String
)
sourceCode
: The source code.name
: The filename of the original source code.
OriginalSource tries to create column mappings if requested, by splitting the source code at typical statement borders (;
, {
, }
).
SourceMapSource
Represents source code with SourceMap, optionally having an additional SourceMap for the original source.
new SourceMapSource(
sourceCode: String,
name: String,
sourceMap: Object | String,
originalSource?: String,
innerSourceMap?: Object | String,
removeOriginalSource?: boolean
)
sourceCode
: The source code.name
: The filename of the original source code.sourceMap
: The SourceMap for the source code.originalSource
: The source code of the original file. Can be omitted if thesourceMap
already contains the original source code.innerSourceMap
: The SourceMap for theoriginalSource
/name
.removeOriginalSource
: Removes the source code forname
from the final map, keeping only the deeper mappings for that file.
The SourceMapSource
supports "identity" mappings for the innerSourceMap
.
When original source matches generated source for a mapping it's assumed to be mapped char by char allowing to keep finer mappings from sourceMap
.
LineToLineMappedSource
Represents source code, which is mapped line by line to the original file.
new LineToLineMappedSource(
sourceCode: String,
name: String,
originalSource: String
)
sourceCode
: The source code.name
: The filename of the original source code.originalSource
: The original source code.
CachedSource
Decorates a Source
and caches returned results of map
, source
, size
and sourceAndMap
in memory. Every other operation is delegated to the wrapped Source
.
new CachedSource(source: Source)
PrefixSource
Prefix every line of the decorated Source
with a provided string.
new PrefixSource(
prefix: String,
source: Source
)
ConcatSource
Concatenate multiple Source
s or strings to a single source.
new ConcatSource(
...items?: Source | String
)
Public methods
add
ConcatSource.prototype.add(item: Source | String)
Adds an item to the source.
ReplaceSource
Decorates a Source
with replacements and insertions of source code.
The ReplaceSource
supports "identity" mappings for child source.
When original source matches generated source for a mapping it's assumed to be mapped char by char allowing to split mappings at replacements/insertions.
Public methods
replace
ReplaceSource.prototype.replace(
start: Number,
end: Number,
replacement: String
)
Replaces chars from start
(0-indexed, inclusive) to end
(0-indexed, inclusive) with replacement
.
Locations represents locations in the original source and are not influenced by other replacements or insertions.
insert
ReplaceSource.prototype.insert(
pos: Number,
insertion: String
)
Inserts the insertion
before char pos
(0-indexed).
Location represents location in the original source and is not influenced by other replacements or insertions.
original
Get decorated Source
.