Add --blocklist-file option (#2097)

Update Item to hold a `clang::SourceLocation` and use this to allow
blocklisting based on filename.

The existing code has a special case that always maps <stdint.h> integer
types to corresponding Rust integer types, even if the C types are
blocklisted.  To match this special case behaviour, also treat these
C <stdint.h> types as being eligible for derived Copy/Clone/Debug
traits.

Fixes #2096

1 files changed, 14 insertions, 0 deletions

diff --git a/src/options.rs b/src/options.rs
index 9aac5dae..bc7431c5 100644
--- a/src/options.rs
+++ b/src/options.rs
@@ -164,6 +164,14 @@ where
                 .takes_value(true)
                 .multiple(true)
                 .number_of_values(1),
+            Arg::with_name("blocklist-file")
+                .alias("blacklist-file")
+                .long("blocklist-file")
+                .help("Mark all contents of <path> as hidden.")
+                .value_name("path")
+                .takes_value(true)
+                .multiple(true)
+                .number_of_values(1),
             Arg::with_name("no-layout-tests")
                 .long("no-layout-tests")
                 .help("Avoid generating layout tests for any type."),
@@ -630,6 +638,12 @@ where
         }
     }
 
+    if let Some(hidden_files) = matches.values_of("blocklist-file") {
+        for file in hidden_files {
+            builder = builder.blocklist_file(file);
+        }
+    }
+
     if matches.is_present("builtins") {
         builder = builder.emit_builtins();
     }