From 92cda8c7da86b6770a483bc45ce32c8b94b019ec Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume1.gomez@gmail.com>
Date: Thu, 5 Jul 2018 20:06:33 +0200
Subject: [PATCH] Whitelist lints

---
 src/librustc_lint/builtin.rs |  2 +-
 src/librustc_lint/lib.rs     |  2 +-
 src/librustdoc/core.rs       | 23 +++++++++++++++++------
 3 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/src/librustc_lint/builtin.rs b/src/librustc_lint/builtin.rs
index c5f3b45950e..d6e5c70b8f7 100644
--- a/src/librustc_lint/builtin.rs
+++ b/src/librustc_lint/builtin.rs
@@ -280,7 +280,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnsafeCode {
 }
 
 declare_lint! {
-    MISSING_DOCS,
+    pub MISSING_DOCS,
     Allow,
     "detects missing documentation for public members"
 }
diff --git a/src/librustc_lint/lib.rs b/src/librustc_lint/lib.rs
index adc700506ff..459f496c9fe 100644
--- a/src/librustc_lint/lib.rs
+++ b/src/librustc_lint/lib.rs
@@ -56,7 +56,7 @@ use lint::LintId;
 use lint::FutureIncompatibleInfo;
 
 mod bad_style;
-mod builtin;
+pub mod builtin;
 mod types;
 mod unused;
 
diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs
index 5cfdd07ab92..c7a8e6804f6 100644
--- a/src/librustdoc/core.rs
+++ b/src/librustdoc/core.rs
@@ -189,6 +189,7 @@ pub fn run_core(search_paths: SearchPaths,
 
     let intra_link_resolution_failure_name = lint::builtin::INTRA_DOC_LINK_RESOLUTION_FAILURE.name;
     let warnings_lint_name = lint::builtin::WARNINGS.name;
+    let missing_docs = rustc_lint::builtin::MISSING_DOCS.name;
     let lints = lint::builtin::HardwiredLints.get_lints()
                     .into_iter()
                     .chain(rustc_lint::SoftLints.get_lints().into_iter())
@@ -236,12 +237,22 @@ pub fn run_core(search_paths: SearchPaths,
             sessopts, cpath, diagnostic_handler, codemap,
         );
 
-        let shutdown_lints = [lint::builtin::UNUSED_IMPORTS,
-                              lint::builtin::UNUSED_EXTERN_CRATES];
-
-        for l in &shutdown_lints {
-            sess.driver_lint_caps.insert(lint::LintId::of(l), lint::Allow);
-        }
+        lint::builtin::HardwiredLints.get_lints()
+                                     .into_iter()
+                                     .chain(rustc_lint::SoftLints.get_lints().into_iter())
+                                     .filter_map(|lint| {
+                                         if lint.name == warnings_lint_name ||
+                                            lint.name == intra_link_resolution_failure_name ||
+                                            lint.name == missing_docs {
+                                             None
+                                         } else {
+                                             Some(lint)
+                                         }
+                                     })
+                                     .for_each(|l| {
+                                         sess.driver_lint_caps.insert(lint::LintId::of(l),
+                                                                      lint::Allow);
+                                     });
 
         let codegen_backend = rustc_driver::get_codegen_backend(&sess);
         let cstore = Rc::new(CStore::new(codegen_backend.metadata_loader()));