rustdoc: change `.src-line-numbers > span` to `.src-line-numbers > a`

This allows people to treat them like real links, such as right-click to
copy URL, and makes the line numbers in a scraped example work at all,
when before this commit was added, they had the clickable pointer cursor
but did not actually do anything when clicked.

1 files changed, 29 insertions, 10 deletions

diff --git a/src/test/rustdoc-gui/source-code-page.goml b/src/test/rustdoc-gui/source-code-page.goml
index a2dac2aa681..31d55cd7885 100644
--- a/src/test/rustdoc-gui/source-code-page.goml
+++ b/src/test/rustdoc-gui/source-code-page.goml
@@ -2,17 +2,17 @@
 goto: "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html"
 show-text: true
 // Check that we can click on the line number.
-click: ".src-line-numbers > span:nth-child(4)" // This is the span for line 4.
+click: ".src-line-numbers > a:nth-child(4)" // This is the anchor for line 4.
 // Ensure that the page URL was updated.
 assert-document-property: ({"URL": "lib.rs.html#4"}, ENDS_WITH)
 assert-attribute: ("//*[@id='4']", {"class": "line-highlighted"})
-// We now check that the good spans are highlighted
+// We now check that the good anchors are highlighted
 goto: "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html#4-6"
-assert-attribute-false: (".src-line-numbers > span:nth-child(3)", {"class": "line-highlighted"})
-assert-attribute: (".src-line-numbers > span:nth-child(4)", {"class": "line-highlighted"})
-assert-attribute: (".src-line-numbers > span:nth-child(5)", {"class": "line-highlighted"})
-assert-attribute: (".src-line-numbers > span:nth-child(6)", {"class": "line-highlighted"})
-assert-attribute-false: (".src-line-numbers > span:nth-child(7)", {"class": "line-highlighted"})
+assert-attribute-false: (".src-line-numbers > a:nth-child(3)", {"class": "line-highlighted"})
+assert-attribute: (".src-line-numbers > a:nth-child(4)", {"class": "line-highlighted"})
+assert-attribute: (".src-line-numbers > a:nth-child(5)", {"class": "line-highlighted"})
+assert-attribute: (".src-line-numbers > a:nth-child(6)", {"class": "line-highlighted"})
+assert-attribute-false: (".src-line-numbers > a:nth-child(7)", {"class": "line-highlighted"})
 
 define-function: (
     "check-colors",
@@ -21,12 +21,12 @@ define-function: (
         ("local-storage", {"rustdoc-theme": |theme|, "rustdoc-use-system-theme": "false"}),
         ("reload"),
         ("assert-css", (
-            ".src-line-numbers > span:not(.line-highlighted)",
+            ".src-line-numbers > a:not(.line-highlighted)",
             {"color": |color|, "background-color": |background_color|},
             ALL,
         )),
         ("assert-css", (
-            ".src-line-numbers > span.line-highlighted",
+            ".src-line-numbers > a.line-highlighted",
             {"color": |highlight_color|, "background-color": |highlight_background_color|},
             ALL,
         )),
@@ -57,6 +57,25 @@ call-function: ("check-colors", {
 
 // This is to ensure that the content is correctly align with the line numbers.
 compare-elements-position: ("//*[@id='1']", ".rust > code > span", ("y"))
+// Check the `href` property so that users can treat anchors as links.
+assert-property: (".src-line-numbers > a:nth-child(1)", {
+    "href": "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html#1"
+})
+assert-property: (".src-line-numbers > a:nth-child(2)", {
+    "href": "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html#2"
+})
+assert-property: (".src-line-numbers > a:nth-child(3)", {
+    "href": "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html#3"
+})
+assert-property: (".src-line-numbers > a:nth-child(4)", {
+    "href": "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html#4"
+})
+assert-property: (".src-line-numbers > a:nth-child(5)", {
+    "href": "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html#5"
+})
+assert-property: (".src-line-numbers > a:nth-child(6)", {
+    "href": "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html#6"
+})
 
 // Assert that the line numbers text is aligned to the right.
 assert-css: (".src-line-numbers", {"text-align": "right"})
@@ -66,7 +85,7 @@ assert-css: (".src-line-numbers", {"text-align": "right"})
 goto: "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html"
 // We use this assert-position to know where we will click.
 assert-position: ("//*[@id='1']", {"x": 104, "y": 112})
-// We click on the left of the "1" span but still in the "src-line-number" `<pre>`.
+// We click on the left of the "1" anchor but still in the "src-line-number" `<pre>`.
 click: (103, 103)
 assert-document-property: ({"URL": "/lib.rs.html"}, ENDS_WITH)