Merging upstream version 1.70.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 97 insertions, 0 deletions

diff --git a/tests/run-make/rustdoc-scrape-examples-macros/Makefile b/tests/run-make/rustdoc-scrape-examples-macros/Makefile
new file mode 100644
index 000000000..edc19d8cb
--- /dev/null
+++ b/tests/run-make/rustdoc-scrape-examples-macros/Makefile
@@ -0,0 +1,19 @@
+# ignore-cross-compile
+include ../../run-make/tools.mk
+
+OUTPUT_DIR := "$(TMPDIR)/rustdoc"
+DYLIB_NAME := $(shell echo | $(RUSTC) --crate-name foobar_macro --crate-type dylib --print file-names -)
+
+all:
+	$(RUSTC) src/proc.rs --crate-name foobar_macro --edition=2021 --crate-type proc-macro --emit=dep-info,link
+
+	$(RUSTC) src/lib.rs --crate-name foobar --edition=2021 --crate-type lib --emit=dep-info,link
+
+	$(RUSTDOC) examples/ex.rs --crate-name ex --crate-type bin --output $(OUTPUT_DIR) \
+		--extern foobar=$(TMPDIR)/libfoobar.rlib --extern foobar_macro=$(TMPDIR)/$(DYLIB_NAME) \
+		-Z unstable-options --scrape-examples-output-path $(TMPDIR)/ex.calls --scrape-examples-target-crate foobar
+
+	$(RUSTDOC) src/lib.rs --crate-name foobar --crate-type lib --output $(OUTPUT_DIR) \
+		-Z unstable-options --with-examples $(TMPDIR)/ex.calls
+
+	$(HTMLDOCCK) $(OUTPUT_DIR) src/lib.rs
diff --git a/tests/run-make/rustdoc-scrape-examples-macros/examples/ex.rs b/tests/run-make/rustdoc-scrape-examples-macros/examples/ex.rs
new file mode 100644
index 000000000..4d8c8b30e
--- /dev/null
+++ b/tests/run-make/rustdoc-scrape-examples-macros/examples/ex.rs
@@ -0,0 +1,27 @@
+extern crate foobar;
+extern crate foobar_macro;
+
+use foobar::*;
+use foobar_macro::*;
+
+a_proc_macro!(); // no
+
+#[an_attr_macro]
+fn a() {
+  f(); // no
+}
+
+#[an_attr_macro(with_span)]
+fn b() {
+  f(); // yes
+}
+
+fn c() {
+  a_rules_macro!(f()); // yes
+}
+
+fn d() {
+  a_rules_macro!(()); // no
+}
+
+fn main(){}
diff --git a/tests/run-make/rustdoc-scrape-examples-macros/src/lib.rs b/tests/run-make/rustdoc-scrape-examples-macros/src/lib.rs
new file mode 100644
index 000000000..d8658a0f2
--- /dev/null
+++ b/tests/run-make/rustdoc-scrape-examples-macros/src/lib.rs
@@ -0,0 +1,12 @@
+// Scraped example should only include line numbers for items b and c in ex.rs
+// @!has foobar/fn.f.html '//*[@class="src-line-numbers"]' '14'
+// @has foobar/fn.f.html '//*[@class="src-line-numbers"]' '15'
+// @has foobar/fn.f.html '//*[@class="src-line-numbers"]' '21'
+// @!has foobar/fn.f.html '//*[@class="src-line-numbers"]' '22'
+
+pub fn f() {}
+
+#[macro_export]
+macro_rules! a_rules_macro {
+  ($e:expr) => { ($e, foobar::f()); }
+}
diff --git a/tests/run-make/rustdoc-scrape-examples-macros/src/proc.rs b/tests/run-make/rustdoc-scrape-examples-macros/src/proc.rs
new file mode 100644
index 000000000..46e518fdf
--- /dev/null
+++ b/tests/run-make/rustdoc-scrape-examples-macros/src/proc.rs
@@ -0,0 +1,39 @@
+extern crate proc_macro;
+use proc_macro::*;
+
+#[proc_macro]
+pub fn a_proc_macro(_item: TokenStream) -> TokenStream {
+    "fn ex() { foobar::f(); }".parse().unwrap()
+}
+
+// inserts foobar::f() to the end of the function
+#[proc_macro_attribute]
+pub fn an_attr_macro(attr: TokenStream, item: TokenStream) -> TokenStream {
+    let new_call: TokenStream = "foobar::f();".parse().unwrap();
+
+    let mut tokens = item.into_iter();
+
+    let fn_tok = tokens.next().unwrap();
+    let ident_tok = tokens.next().unwrap();
+    let args_tok = tokens.next().unwrap();
+    let body = match tokens.next().unwrap() {
+        TokenTree::Group(g) => {
+            let new_g = Group::new(g.delimiter(), new_call);
+            let mut outer_g = Group::new(
+                g.delimiter(),
+                [TokenTree::Group(g.clone()), TokenTree::Group(new_g)].into_iter().collect(),
+            );
+
+            if attr.to_string() == "with_span" {
+                outer_g.set_span(g.span());
+            }
+
+            TokenTree::Group(outer_g)
+        }
+        _ => unreachable!(),
+    };
+
+    let tokens = vec![fn_tok, ident_tok, args_tok, body].into_iter().collect::<TokenStream>();
+
+    tokens
+}