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