1 files changed, 80 insertions, 0 deletions
diff --git a/node_modules/istanbul-lib-source-maps/lib/source-store.js b/node_modules/istanbul-lib-source-maps/lib/source-store.js
new file mode 100644
index 000000000..cb84e9ec8
--- /dev/null
+++ b/node_modules/istanbul-lib-source-maps/lib/source-store.js
@@ -0,0 +1,80 @@
+var util = require('util'),
+    os = require('os'),
+    path = require('path'),
+    mkdirp = require('mkdirp'),
+    rimraf = require('rimraf'),
+    fs = require('fs');
+
+function SourceStore(/*opts*/) {
+}
+
+SourceStore.prototype.registerSource = function (/* filePath, sourceText */) {
+    throw new Error('registerSource must be overridden');
+};
+
+SourceStore.prototype.getSource = function (/* filePath */) {
+    throw new Error('getSource must be overridden');
+};
+
+SourceStore.prototype.dispose = function () {
+};
+
+function MemoryStore() {
+    this.data = {};
+}
+
+util.inherits(MemoryStore, SourceStore);
+
+MemoryStore.prototype.registerSource = function (filePath, sourceText) {
+    this.data[filePath] = sourceText;
+};
+
+MemoryStore.prototype.getSource = function (filePath) {
+    return this.data[filePath] || null;
+};
+
+function FileStore(opts) {
+    opts = opts || {};
+    var tmpDir = opts.tmpdir || os.tmpdir();
+    this.counter = 0;
+    this.mappings = [];
+    this.basePath = path.resolve(tmpDir, '.istanbul', 'cache_');
+    mkdirp.sync(path.dirname(this.basePath));
+}
+
+util.inherits(FileStore, SourceStore);
+
+FileStore.prototype.registerSource = function (filePath, sourceText) {
+    if (this.mappings[filePath]) {
+        return;
+    }
+    this.counter += 1;
+    var mapFile = this.basePath + this.counter;
+    this.mappings[filePath] = mapFile;
+    fs.writeFileSync(mapFile, sourceText, 'utf8');
+};
+
+FileStore.prototype.getSource = function (filePath) {
+    var mapFile = this.mappings[filePath];
+    if (!mapFile) {
+        return null;
+    }
+    return fs.readFileSync(mapFile, 'utf8');
+};
+
+FileStore.prototype.dispose = function () {
+    this.mappings = [];
+    rimraf.sync(path.dirname(this.basePath));
+};
+
+module.exports = {
+    create: function (type, opts) {
+        opts = opts || {};
+        type = (type || 'memory').toLowerCase();
+
+        if (type === 'file') {
+            return new FileStore(opts);
+        }
+        return new MemoryStore(opts);
+    }
+};