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authorruki <waruqi@gmail.com>2018-11-08 00:38:48 +0800
committerruki <waruqi@gmail.com>2018-11-07 21:53:09 +0800
commit26105034da4fcce7ac883c899d781f016559310d (patch)
treec459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/@vue/component-compiler-utils/dist/parse.js
parent2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff)
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diff --git a/node_modules/@vue/component-compiler-utils/dist/parse.js b/node_modules/@vue/component-compiler-utils/dist/parse.js
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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const hash = require('hash-sum');
+const cache = require('lru-cache')(100);
+const { SourceMapGenerator } = require('source-map');
+const splitRE = /\r?\n/g;
+const emptyRE = /^(?:\/\/)?\s*$/;
+function parse(options) {
+ const { source, filename = '', compiler, compilerParseOptions = { pad: 'line' }, sourceRoot = process.cwd(), needMap = true } = options;
+ const cacheKey = hash(filename + source);
+ let output = cache.get(cacheKey);
+ if (output)
+ return output;
+ output = compiler.parseComponent(source, compilerParseOptions);
+ if (needMap) {
+ if (output.script && !output.script.src) {
+ output.script.map = generateSourceMap(filename, source, output.script.content, sourceRoot);
+ }
+ if (output.styles) {
+ output.styles.forEach(style => {
+ if (!style.src) {
+ style.map = generateSourceMap(filename, source, style.content, sourceRoot);
+ }
+ });
+ }
+ }
+ cache.set(cacheKey, output);
+ return output;
+}
+exports.parse = parse;
+function generateSourceMap(filename, source, generated, sourceRoot) {
+ const map = new SourceMapGenerator({
+ file: filename,
+ sourceRoot
+ });
+ map.setSourceContent(filename, source);
+ generated.split(splitRE).forEach((line, index) => {
+ if (!emptyRE.test(line)) {
+ map.addMapping({
+ source: filename,
+ original: {
+ line: index + 1,
+ column: 0
+ },
+ generated: {
+ line: index + 1,
+ column: 0
+ }
+ });
+ }
+ });
+ return map.toJSON();
+}