Expand internal-unstable to handle named field accesses and method calls.

Author: rprichard

src/test/auxiliary/internal_unstable.rs

@@ -22,6 +22,17 @@ pub struct Foo {
     pub x: u8
 }
 
+impl Foo {
+    #[unstable(feature = "method")]
+    pub fn method(&self) {}
+}
+
+#[stable(feature = "stable", since = "1.0.0")]
+pub struct Bar {
+    #[unstable(feature = "struct2_field")]
+    pub x: u8
+}
+
 #[allow_internal_unstable]
 #[macro_export]
 macro_rules! call_unstable_allow {
@@ -36,6 +47,18 @@ macro_rules! construct_unstable_allow {
     }
 }
 
+#[allow_internal_unstable]
+#[macro_export]
+macro_rules! call_method_allow {
+    ($e: expr) => { $e.method() }
+}
+
+#[allow_internal_unstable]
+#[macro_export]
+macro_rules! access_field_allow {
+    ($e: expr) => { $e.x }
+}
+
 #[allow_internal_unstable]
 #[macro_export]
 macro_rules! pass_through_allow {
@@ -54,6 +77,16 @@ macro_rules! construct_unstable_noallow {
     }
 }
 
+#[macro_export]
+macro_rules! call_method_noallow {
+    ($e: expr) => { $e.method() }
+}
+
+#[macro_export]
+macro_rules! access_field_noallow {
+    ($e: expr) => { $e.x }
+}
+
 #[macro_export]
 macro_rules! pass_through_noallow {
     ($e: expr) => { $e }

src/test/compile-fail/internal-unstable-noallow.rs

@@ -16,6 +16,8 @@
 // aux-build:internal_unstable.rs
 // error-pattern:use of unstable library feature 'function'
 // error-pattern:use of unstable library feature 'struct_field'
+// error-pattern:use of unstable library feature 'method'
+// error-pattern:use of unstable library feature 'struct2_field'
 
 #[macro_use]
 extern crate internal_unstable;
@@ -24,4 +26,8 @@ fn main() {
     call_unstable_noallow!();
 
     construct_unstable_noallow!(0);
+
+    |x: internal_unstable::Foo| { call_method_noallow!(x) };
+
+    |x: internal_unstable::Bar| { access_field_noallow!(x) };
 }

src/test/compile-fail/internal-unstable.rs

@@ -36,6 +36,8 @@ fn main() {
     // ok, the instability is contained.
     call_unstable_allow!();
     construct_unstable_allow!(0);
+    |x: internal_unstable::Foo| { call_method_allow!(x) };
+    |x: internal_unstable::Bar| { access_field_allow!(x) };
 
     // bad.
     pass_through_allow!(internal_unstable::unstable()); //~ ERROR use of unstable