OriginalSource.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
var SourceNode = require("source-map").SourceNode;
var SourceMapConsumer = require("source-map").SourceMapConsumer;
var SourceListMap = require("source-list-map").SourceListMap;
var Source = require("./Source");
function isSplitter(c) {
switch(c) {
case 10: // \n
case 13: // \r
case 59: // ;
case 123: // {
case 125: // }
return true;
}
return false;
}
function _splitCode(code) {
var result = [];
var i = 0;
var j = 0;
for(; i < code.length; i++) {
if(isSplitter(code.charCodeAt(i))) {
while(isSplitter(code.charCodeAt(++i)));
result.push(code.substring(j, i));
j = i;
}
}
if(j < code.length)
result.push(code.substr(j));
return result;
}
class OriginalSource extends Source {
constructor(value, name) {
super();
this._value = value;
this._name = name;
}
source() {
return this._value;
}
node(options) {
options = options || {};
var sourceMap = this._sourceMap;
var value = this._value;
var name = this._name;
var lines = value.split("\n");
var node = new SourceNode(null, null, null,
lines.map(function(line, idx) {
var pos = 0;
if(options.columns === false) {
var content = line + (idx != lines.length - 1 ? "\n" : "");
return new SourceNode(idx + 1, 0, name, content);
}
return new SourceNode(null, null, null,
_splitCode(line + (idx != lines.length - 1 ? "\n" : "")).map(function(item) {
if(/^\s*$/.test(item)) return item;
var res = new SourceNode(idx + 1, pos, name, item);
pos += item.length;
return res;
})
);
})
);
node.setSourceContent(name, value);
return node;
}
listMap(options) {
return new SourceListMap(this._value, this._name, this._value)
}
updateHash(hash) {
hash.update(this._value);
}
}
require("./SourceAndMapMixin")(OriginalSource.prototype);
module.exports = OriginalSource;