Auto merge of #29574 - ohno418:implement-URL-static-canParse, r=jdm

Implement URL.canParse

Add an implementation of `URL.canParse` as a static method. See [here][1] for the specification.

[1]: https://url.spec.whatwg.org/#dom-url-canparse

Signed-off-by: Yutaro Ohno <yutaro.ono.418@gmail.com>

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #29533(GitHub issue number if applicable)

<!-- Either: -->
- [x] There are tests for these changes

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components/script/dom/url.rs

@@ -111,6 +111,27 @@ impl URL {
         Ok(result)
     }
 
+    // https://url.spec.whatwg.org/#dom-url-canparse
+    pub fn CanParse(_global: &GlobalScope, url: USVString, base: Option<USVString>) -> bool {
+        // Step 1.
+        let parsed_base = match base {
+            None => None,
+            Some(base) => match ServoUrl::parse(&base.0) {
+                Ok(base) => Some(base),
+                Err(_) => {
+                    // Step 2.1
+                    return false;
+                },
+            },
+        };
+        match ServoUrl::parse_with_base(parsed_base.as_ref(), &url.0) {
+            // Step 3
+            Ok(_) => true,
+            // Step 2.2
+            Err(_) => false,
+        }
+    }
+
     // https://w3c.github.io/FileAPI/#dfn-createObjectURL
     pub fn CreateObjectURL(global: &GlobalScope, blob: &Blob) -> DOMString {
         // XXX: Second field is an unicode-serialized Origin, it is a temporary workaround

components/script/dom/webidls/URL.webidl

@@ -7,6 +7,9 @@
  LegacyWindowAlias=webkitURL]
 interface URL {
   [Throws] constructor(USVString url, optional USVString base);
+
+  static boolean canParse(USVString url, optional USVString base);
+
   [SetterThrows]
   stringifier attribute USVString href;
   readonly attribute USVString origin;

tests/wpt/metadata/url/url-statics-canparse.any.js.ini

@@ -1,44 +0,0 @@
-[url-statics-canparse.any.html]
-  [URL.canParse(undefined, undefined)]
-    expected: FAIL
-
-  [URL.canParse(a:b, undefined)]
-    expected: FAIL
-
-  [URL.canParse(undefined, a:b)]
-    expected: FAIL
-
-  [URL.canParse(a:/b, undefined)]
-    expected: FAIL
-
-  [URL.canParse(undefined, a:/b)]
-    expected: FAIL
-
-  [URL.canParse(https://test:test, undefined)]
-    expected: FAIL
-
-  [URL.canParse(a, https://b/)]
-    expected: FAIL
-
-
-[url-statics-canparse.any.worker.html]
-  [URL.canParse(undefined, undefined)]
-    expected: FAIL
-
-  [URL.canParse(a:b, undefined)]
-    expected: FAIL
-
-  [URL.canParse(undefined, a:b)]
-    expected: FAIL
-
-  [URL.canParse(a:/b, undefined)]
-    expected: FAIL
-
-  [URL.canParse(undefined, a:/b)]
-    expected: FAIL
-
-  [URL.canParse(https://test:test, undefined)]
-    expected: FAIL
-
-  [URL.canParse(a, https://b/)]
-    expected: FAIL