1 files changed, 36 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/common/util/parse_imports.ts b/dom/webgpu/tests/cts/checkout/src/common/util/parse_imports.ts
new file mode 100644
index 0000000000..4b5604b897
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/common/util/parse_imports.ts
@@ -0,0 +1,36 @@
+/**
+ * Parses all the paths of the typescript `import` statements from content
+ * @param path the current path of the file
+ * @param content the file content
+ * @returns the list of import paths
+ */
+export function parseImports(path: string, content: string): string[] {
+  const out: string[] = [];
+  const importRE = /^import\s[^'"]*(['"])([./\w]*)(\1);/gm;
+  let importMatch: RegExpMatchArray | null;
+  while ((importMatch = importRE.exec(content))) {
+    const importPath = importMatch[2].replace(`'`, '').replace(`"`, '');
+    out.push(joinPath(path, importPath));
+  }
+  return out;
+}
+
+function joinPath(a: string, b: string): string {
+  const aParts = a.split('/');
+  const bParts = b.split('/');
+  aParts.pop(); // remove file
+  let bStart = 0;
+  while (aParts.length > 0) {
+    switch (bParts[bStart]) {
+      case '.':
+        bStart++;
+        continue;
+      case '..':
+        aParts.pop();
+        bStart++;
+        continue;
+    }
+    break;
+  }
+  return [...aParts, ...bParts.slice(bStart)].join('/');
+}