diff options
| author | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
|---|---|---|
| committer | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
| commit | de98e0b232509d5f40c135d540a70e415272ff85 (patch) | |
| tree | a79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/webpack-sources/lib/PrefixSource.js | |
| parent | e0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff) | |
node_modules
Diffstat (limited to 'node_modules/webpack-sources/lib/PrefixSource.js')
| -rw-r--r-- | node_modules/webpack-sources/lib/PrefixSource.js | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/node_modules/webpack-sources/lib/PrefixSource.js b/node_modules/webpack-sources/lib/PrefixSource.js new file mode 100644 index 000000000..4ea819c45 --- /dev/null +++ b/node_modules/webpack-sources/lib/PrefixSource.js @@ -0,0 +1,74 @@ +/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+var Source = require("./Source");
+var SourceNode = require("source-map").SourceNode;
+
+var REPLACE_REGEX = /\n(?=.|\s)/g
+
+function PrefixSource(prefix, source) {
+ Source.call(this);
+ this._source = source;
+ this._prefix = prefix;
+}
+module.exports = PrefixSource;
+
+PrefixSource.prototype = Object.create(Source.prototype);
+PrefixSource.prototype.constructor = PrefixSource;
+
+PrefixSource.prototype.source = function() {
+ var node = typeof this._source === "string" ? this._source : this._source.source();
+ var prefix = this._prefix;
+ return prefix + node.replace(REPLACE_REGEX, "\n" + prefix);
+};
+
+require("./SourceAndMapMixin")(PrefixSource.prototype);
+
+PrefixSource.prototype.node = function(options) {
+ var node = this._source.node(options);
+ var append = [this._prefix];
+ return new SourceNode(null, null, null, [
+ cloneAndPrefix(node, this._prefix, append)
+ ]);
+};
+
+PrefixSource.prototype.listMap = function(options) {
+ var prefix = this._prefix;
+ var map = this._source.listMap(options);
+ return map.mapGeneratedCode(function(code) {
+ return prefix + code.replace(REPLACE_REGEX, "\n" + prefix);
+ });
+};
+
+PrefixSource.prototype.updateHash = function(hash) {
+ if(typeof this._source === "string")
+ hash.update(this._source);
+ else
+ this._source.updateHash(hash);
+ if(typeof this._prefix === "string")
+ hash.update(this._prefix);
+ else
+ this._prefix.updateHash(hash);
+};
+
+function cloneAndPrefix(node, prefix, append) {
+ if(typeof node === "string") {
+ var result = node.replace(REPLACE_REGEX, "\n" + prefix);
+ if(append.length > 0) result = append.pop() + result;
+ if(/\n$/.test(node)) append.push(prefix);
+ return result;
+ } else {
+ var newNode = new SourceNode(
+ node.line,
+ node.column,
+ node.source,
+ node.children.map(function(node) {
+ return cloneAndPrefix(node, prefix, append);
+ }),
+ node.name
+ );
+ newNode.sourceContents = node.sourceContents;
+ return newNode;
+ }
+};
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