update

node_modules/clean-css/lib/writer/source-maps.js

@@ -0,0 +1,101 @@
+var SourceMapGenerator = require('source-map').SourceMapGenerator;
+var all = require('./helpers').all;
+
+var isRemoteResource = require('../utils/is-remote-resource');
+
+var isWindows = process.platform == 'win32';
+
+var NIX_SEPARATOR_PATTERN = /\//g;
+var UNKNOWN_SOURCE = '$stdin';
+var WINDOWS_SEPARATOR = '\\';
+
+function store(serializeContext, element) {
+  var fromString = typeof element == 'string';
+  var value = fromString ? element : element[1];
+  var mappings = fromString ? null : element[2];
+  var wrap = serializeContext.wrap;
+
+  wrap(serializeContext, value);
+  track(serializeContext, value, mappings);
+  serializeContext.output.push(value);
+}
+
+function wrap(serializeContext, value) {
+  if (serializeContext.column + value.length > serializeContext.format.wrapAt) {
+    track(serializeContext, serializeContext.format.breakWith, false);
+    serializeContext.output.push(serializeContext.format.breakWith);
+  }
+}
+
+function track(serializeContext, value, mappings) {
+  var parts = value.split('\n');
+
+  if (mappings) {
+    trackAllMappings(serializeContext, mappings);
+  }
+
+  serializeContext.line += parts.length - 1;
+  serializeContext.column = parts.length > 1 ? 0 : (serializeContext.column + parts.pop().length);
+}
+
+function trackAllMappings(serializeContext, mappings) {
+  for (var i = 0, l = mappings.length; i < l; i++) {
+    trackMapping(serializeContext, mappings[i]);
+  }
+}
+
+function trackMapping(serializeContext, mapping) {
+  var line = mapping[0];
+  var column = mapping[1];
+  var originalSource = mapping[2];
+  var source = originalSource;
+  var storedSource = source || UNKNOWN_SOURCE;
+
+  if (isWindows && source && !isRemoteResource(source)) {
+    storedSource = source.replace(NIX_SEPARATOR_PATTERN, WINDOWS_SEPARATOR);
+  }
+
+  serializeContext.outputMap.addMapping({
+    generated: {
+      line: serializeContext.line,
+      column: serializeContext.column
+    },
+    source: storedSource,
+    original: {
+      line: line,
+      column: column
+    }
+  });
+
+  if (serializeContext.inlineSources && (originalSource in serializeContext.sourcesContent)) {
+    serializeContext.outputMap.setSourceContent(storedSource, serializeContext.sourcesContent[originalSource]);
+  }
+}
+
+function serializeStylesAndSourceMap(tokens, context) {
+  var serializeContext = {
+    column: 0,
+    format: context.options.format,
+    indentBy: 0,
+    indentWith: '',
+    inlineSources: context.options.sourceMapInlineSources,
+    line: 1,
+    output: [],
+    outputMap: new SourceMapGenerator(),
+    sourcesContent: context.sourcesContent,
+    spaceAfterClosingBrace: context.options.compatibility.properties.spaceAfterClosingBrace,
+    store: store,
+    wrap: context.options.format.wrapAt ?
+      wrap :
+      function () { /* noop */  }
+  };
+
+  all(serializeContext, tokens);
+
+  return {
+    sourceMap: serializeContext.outputMap,
+    styles: serializeContext.output.join('')
+  };
+}
+
+module.exports = serializeStylesAndSourceMap;