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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
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Diffstat (limited to 'node_modules/webpack-sources/lib/PrefixSource.js')
-rw-r--r--node_modules/webpack-sources/lib/PrefixSource.js95
1 files changed, 95 insertions, 0 deletions
diff --git a/node_modules/webpack-sources/lib/PrefixSource.js b/node_modules/webpack-sources/lib/PrefixSource.js
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+/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+"use strict";
+
+var Source = require("./Source");
+var SourceNode = require("source-map").SourceNode;
+
+var REPLACE_REGEX = /\n(?=.|\s)/g;
+
+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;
+ }
+};
+
+class PrefixSource extends Source {
+ constructor(prefix, source) {
+ super();
+ this._source = source;
+ this._prefix = prefix;
+ }
+
+ source() {
+ var node = typeof this._source === "string" ? this._source : this._source.source();
+ var prefix = this._prefix;
+ return prefix + node.replace(REPLACE_REGEX, "\n" + prefix);
+ }
+
+ node(options) {
+ var node = this._source.node(options);
+ var prefix = this._prefix;
+ var output = [];
+ var result = new SourceNode();
+ node.walkSourceContents(function(source, content) {
+ result.setSourceContent(source, content);
+ });
+ var needPrefix = true;
+ node.walk(function(chunk, mapping) {
+ var parts = chunk.split(/(\n)/);
+ for(var i = 0; i < parts.length; i += 2) {
+ var nl = i + 1 < parts.length;
+ var part = parts[i] + (nl ? "\n" : "");
+ if(part) {
+ if(needPrefix) {
+ output.push(prefix);
+ }
+ output.push(new SourceNode(mapping.line, mapping.column, mapping.source, part, mapping.name));
+ needPrefix = nl;
+ }
+ }
+ });
+ result.add(output);
+ return result;
+ }
+
+ listMap(options) {
+ var prefix = this._prefix;
+ var map = this._source.listMap(options);
+ return map.mapGeneratedCode(function(code) {
+ return prefix + code.replace(REPLACE_REGEX, "\n" + prefix);
+ });
+ }
+
+ updateHash(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);
+ }
+}
+
+require("./SourceAndMapMixin")(PrefixSource.prototype);
+
+module.exports = PrefixSource;