Correctly handle line comments in attributes and generate extern crates

outside of wrapping function

5 files changed, 36 insertions, 7 deletions

diff --git a/tests/run-make/rustdoc-error-lines/rmake.rs b/tests/run-make/rustdoc-error-lines/rmake.rs
index ea5ec2faed9..0d8c500ed1e 100644
--- a/tests/run-make/rustdoc-error-lines/rmake.rs
+++ b/tests/run-make/rustdoc-error-lines/rmake.rs
@@ -8,11 +8,11 @@ fn main() {
 
     let should_contain = &[
         "input.rs - foo (line 5)",
-        "input.rs:7:15",
+        "input.rs:8:15",
         "input.rs - bar (line 13)",
-        "input.rs:15:15",
+        "input.rs:16:15",
         "input.rs - bar (line 22)",
-        "input.rs:24:15",
+        "input.rs:25:15",
     ];
     for text in should_contain {
         assert!(output.contains(text), "output doesn't contains {:?}", text);
diff --git a/tests/rustdoc-ui/doctest/display-output.stdout b/tests/rustdoc-ui/doctest/display-output.stdout
index ad25d1ce541..45e107b2c70 100644
--- a/tests/rustdoc-ui/doctest/display-output.stdout
+++ b/tests/rustdoc-ui/doctest/display-output.stdout
@@ -6,7 +6,7 @@ successes:
 
 ---- $DIR/display-output.rs - foo (line 9) stdout ----
 warning: unused variable: `x`
-  --> $DIR/display-output.rs:11:5
+  --> $DIR/display-output.rs:12:5
    |
 LL | let x = 12;
    |     ^ help: if this is intentional, prefix it with an underscore: `_x`
@@ -19,13 +19,13 @@ LL | #![warn(unused)]
    = note: `#[warn(unused_variables)]` implied by `#[warn(unused)]`
 
 warning: unused variable: `x`
-  --> $DIR/display-output.rs:13:8
+  --> $DIR/display-output.rs:14:8
    |
 LL | fn foo(x: &dyn std::fmt::Display) {}
    |        ^ help: if this is intentional, prefix it with an underscore: `_x`
 
 warning: function `foo` is never used
-  --> $DIR/display-output.rs:13:4
+  --> $DIR/display-output.rs:14:4
    |
 LL | fn foo(x: &dyn std::fmt::Display) {}
    |    ^^^
diff --git a/tests/rustdoc-ui/doctest/extern-crate.rs b/tests/rustdoc-ui/doctest/extern-crate.rs
new file mode 100644
index 00000000000..0415d33bb72
--- /dev/null
+++ b/tests/rustdoc-ui/doctest/extern-crate.rs
@@ -0,0 +1,23 @@
+//@ check-pass
+//@ compile-flags:--test --test-args=--test-threads=1
+//@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
+//@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+
+// This test ensures that crate imports are placed outside of the `main` function
+// so they work all the time (even in 2015 edition).
+
+/// ```rust
+/// #![feature(test)]
+///
+/// extern crate test;
+/// use test::Bencher;
+///
+/// #[bench]
+/// fn bench_xor_1000_ints(b: &mut Bencher) {
+///     b.iter(|| {
+///         (0..1000).fold(0, |old, new| old ^ new);
+///     });
+/// }
+/// ```
+///
+pub fn foo() {}
diff --git a/tests/rustdoc-ui/doctest/extern-crate.stdout b/tests/rustdoc-ui/doctest/extern-crate.stdout
new file mode 100644
index 00000000000..b103343afdd
--- /dev/null
+++ b/tests/rustdoc-ui/doctest/extern-crate.stdout
@@ -0,0 +1,6 @@
+
+running 1 test
+test $DIR/extern-crate.rs - foo (line 9) ... ok
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
+
diff --git a/tests/rustdoc/playground.rs b/tests/rustdoc/playground.rs
index db2d1669df6..65dad2a5195 100644
--- a/tests/rustdoc/playground.rs
+++ b/tests/rustdoc/playground.rs
@@ -24,4 +24,4 @@
 
 //@ matches foo/index.html '//a[@class="test-arrow"][@href="https://www.example.com/?code=%23!%5Ballow(unused)%5D%0Afn+main()+%7B%0A++++println!(%22Hello,+world!%22);%0A%7D&edition=2015"]' ""
 //@ matches foo/index.html '//a[@class="test-arrow"][@href="https://www.example.com/?code=%23!%5Ballow(unused)%5D%0Afn+main()+%7B%0A++++println!(%22Hello,+world!%22);%0A%7D&edition=2015"]' ""
-//@ matches foo/index.html '//a[@class="test-arrow"][@href="https://www.example.com/?code=%23!%5Ballow(unused)%5D%0A%23!%5Bfeature(something)%5D%0A%0Afn+main()+%7B%0A++++println!(%22Hello,+world!%22);%0A%7D&version=nightly&edition=2015"]' ""
+//@ matches foo/index.html '//a[@class="test-arrow"][@href="https://www.example.com/?code=%23!%5Ballow(unused)%5D%0A%23!%5Bfeature(something)%5D%0A%0A%0Afn+main()+%7B%0A++++println!(%22Hello,+world!%22);%0A%7D&version=nightly&edition=2015"]' ""