Rollup of 38 pull requests

src/librustc_save_analysis/data.rs

@@ -15,7 +15,7 @@
 
 use rustc::hir;
 use rustc::hir::def_id::{CrateNum, DefId};
-use syntax::ast::{self, NodeId};
+use syntax::ast::{self, Attribute, NodeId};
 use syntax_pos::Span;
 
 pub struct CrateData {
@@ -136,6 +136,7 @@ pub struct EnumData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 /// Data for extern crates.
@@ -171,6 +172,7 @@ pub struct FunctionData {
     pub parent: Option<DefId>,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 /// Data about a function call.
@@ -256,6 +258,7 @@ pub struct MethodData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 /// Data for modules.
@@ -271,6 +274,7 @@ pub struct ModData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 /// Data for a reference to a module.
@@ -295,6 +299,7 @@ pub struct StructData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 #[derive(Debug, RustcEncodable)]
@@ -309,6 +314,7 @@ pub struct StructVariantData {
     pub parent: Option<DefId>,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 #[derive(Debug, RustcEncodable)]
@@ -323,6 +329,7 @@ pub struct TraitData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 #[derive(Debug, RustcEncodable)]
@@ -337,6 +344,7 @@ pub struct TupleVariantData {
     pub parent: Option<DefId>,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 /// Data for a typedef.
@@ -351,6 +359,7 @@ pub struct TypeDefData {
     pub parent: Option<DefId>,
     pub docs: String,
     pub sig: Option<Signature>,
+    pub attributes: Vec<Attribute>,
 }
 
 /// Data for a reference to a type or trait.
@@ -396,6 +405,7 @@ pub struct VariableData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Option<Signature>,
+    pub attributes: Vec<Attribute>,
 }
 
 #[derive(Debug, RustcEncodable)]

src/librustc_save_analysis/dump_visitor.rs

@@ -373,6 +373,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
                         visibility: Visibility::Inherited,
                         docs: String::new(),
                         sig: None,
+                        attributes: vec![],
                     }.lower(self.tcx));
                 }
             }
@@ -448,6 +449,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
                     visibility: vis,
                     docs: docs_for_attrs(attrs),
                     sig: method_data.sig,
+                    attributes: attrs.to_vec(),
                 }.lower(self.tcx));
             }
 
@@ -519,6 +521,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
                     parent: None,
                     docs: String::new(),
                     sig: None,
+                    attributes: vec![],
                 }.lower(self.tcx));
             }
         }
@@ -592,6 +595,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
                 visibility: vis,
                 docs: docs_for_attrs(attrs),
                 sig: None,
+                attributes: attrs.to_vec(),
             }.lower(self.tcx));
         }
 
@@ -636,6 +640,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
                 visibility: From::from(&item.vis),
                 docs: docs_for_attrs(&item.attrs),
                 sig: self.save_ctxt.sig_base(item),
+                attributes: item.attrs.clone(),
             }.lower(self.tcx));
         }
 
@@ -701,6 +706,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
                             parent: Some(make_def_id(item.id, &self.tcx.hir)),
                             docs: docs_for_attrs(&variant.node.attrs),
                             sig: sig,
+                            attributes: variant.node.attrs.clone(),
                         }.lower(self.tcx));
                     }
                 }
@@ -727,6 +733,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
                             parent: Some(make_def_id(item.id, &self.tcx.hir)),
                             docs: docs_for_attrs(&variant.node.attrs),
                             sig: sig,
+                            attributes: variant.node.attrs.clone(),
                         }.lower(self.tcx));
                     }
                 }
@@ -798,6 +805,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
                 visibility: From::from(&item.vis),
                 docs: docs_for_attrs(&item.attrs),
                 sig: self.save_ctxt.sig_base(item),
+                attributes: item.attrs.clone(),
             }.lower(self.tcx));
         }
 
@@ -1064,6 +1072,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> {
                     visibility: Visibility::Inherited,
                     docs: String::new(),
                     sig: None,
+                    attributes: vec![],
                 }.lower(self.tcx));
             }
         }
@@ -1305,6 +1314,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor<'l> for DumpVisitor<'l, 'tcx, 'll,
                         parent: None,
                         docs: docs_for_attrs(&item.attrs),
                         sig: Some(self.save_ctxt.sig_base(item)),
+                        attributes: item.attrs.clone(),
                     }.lower(self.tcx));
                 }
 
@@ -1527,6 +1537,7 @@ impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor<'l> for DumpVisitor<'l, 'tcx, 'll,
                             visibility: Visibility::Inherited,
                             docs: String::new(),
                             sig: None,
+                            attributes: vec![],
                         }.lower(self.tcx));
                     }
                 }

src/librustc_save_analysis/external_data.rs

@@ -11,8 +11,10 @@
 use rustc::hir::def_id::{CrateNum, DefId, DefIndex};
 use rustc::hir::map::Map;
 use rustc::ty::TyCtxt;
-use syntax::ast::NodeId;
+use syntax::ast::{self, NodeId};
 use syntax::codemap::CodeMap;
+use syntax::print::pprust;
+use syntax::symbol::Symbol;
 use syntax_pos::Span;
 
 use data::{self, Visibility, SigElement};
@@ -64,6 +66,39 @@ impl SpanData {
     }
 }
 
+/// Represent an arbitrary attribute on a code element
+#[derive(Clone, Debug, RustcEncodable)]
+pub struct Attribute {
+    value: String,
+    span: SpanData,
+}
+
+impl Lower for Vec<ast::Attribute> {
+    type Target = Vec<Attribute>;
+
+    fn lower(self, tcx: TyCtxt) -> Vec<Attribute> {
+        let doc = Symbol::intern("doc");
+        self.into_iter()
+        // Only retain real attributes. Doc comments are lowered separately.
+        .filter(|attr| attr.name() != doc)
+        .map(|mut attr| {
+            // Remove the surrounding '#[..]' or '#![..]' of the pretty printed
+            // attribute. First normalize all inner attribute (#![..]) to outer
+            // ones (#[..]), then remove the two leading and the one trailing character.
+            attr.style = ast::AttrStyle::Outer;
+            let value = pprust::attribute_to_string(&attr);
+            // This str slicing works correctly, because the leading and trailing characters
+            // are in the ASCII range and thus exactly one byte each.
+            let value = value[2..value.len()-1].to_string();
+
+            Attribute {
+                value: value,
+                span: SpanData::from_span(attr.span, tcx.sess.codemap()),
+            }
+        }).collect()
+    }
+}
+
 #[derive(Debug, RustcEncodable)]
 pub struct CratePreludeData {
     pub crate_name: String,
@@ -98,6 +133,7 @@ pub struct EnumData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::EnumData {
@@ -115,6 +151,7 @@ impl Lower for data::EnumData {
             visibility: self.visibility,
             docs: self.docs,
             sig: self.sig.lower(tcx),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }
@@ -179,6 +216,7 @@ pub struct FunctionData {
     pub parent: Option<DefId>,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::FunctionData {
@@ -197,6 +235,7 @@ impl Lower for data::FunctionData {
             parent: self.parent,
             docs: self.docs,
             sig: self.sig.lower(tcx),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }
@@ -346,6 +385,7 @@ pub struct MethodData {
     pub parent: Option<DefId>,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::MethodData {
@@ -364,6 +404,7 @@ impl Lower for data::MethodData {
             parent: self.parent,
             docs: self.docs,
             sig: self.sig.lower(tcx),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }
@@ -381,6 +422,7 @@ pub struct ModData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::ModData {
@@ -398,6 +440,7 @@ impl Lower for data::ModData {
             visibility: self.visibility,
             docs: self.docs,
             sig: self.sig.lower(tcx),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }
@@ -437,6 +480,7 @@ pub struct StructData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::StructData {
@@ -455,6 +499,7 @@ impl Lower for data::StructData {
             visibility: self.visibility,
             docs: self.docs,
             sig: self.sig.lower(tcx),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }
@@ -471,6 +516,7 @@ pub struct StructVariantData {
     pub parent: Option<DefId>,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::StructVariantData {
@@ -488,6 +534,7 @@ impl Lower for data::StructVariantData {
             parent: self.parent,
             docs: self.docs,
             sig: self.sig.lower(tcx),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }
@@ -504,6 +551,7 @@ pub struct TraitData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::TraitData {
@@ -521,6 +569,7 @@ impl Lower for data::TraitData {
             visibility: self.visibility,
             docs: self.docs,
             sig: self.sig.lower(tcx),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }
@@ -537,6 +586,7 @@ pub struct TupleVariantData {
     pub parent: Option<DefId>,
     pub docs: String,
     pub sig: Signature,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::TupleVariantData {
@@ -554,6 +604,7 @@ impl Lower for data::TupleVariantData {
             parent: self.parent,
             docs: self.docs,
             sig: self.sig.lower(tcx),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }
@@ -570,6 +621,7 @@ pub struct TypeDefData {
     pub parent: Option<DefId>,
     pub docs: String,
     pub sig: Option<Signature>,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::TypeDefData {
@@ -586,6 +638,7 @@ impl Lower for data::TypeDefData {
             parent: self.parent,
             docs: self.docs,
             sig: self.sig.map(|s| s.lower(tcx)),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }
@@ -675,6 +728,7 @@ pub struct VariableData {
     pub visibility: Visibility,
     pub docs: String,
     pub sig: Option<Signature>,
+    pub attributes: Vec<Attribute>,
 }
 
 impl Lower for data::VariableData {
@@ -694,6 +748,7 @@ impl Lower for data::VariableData {
             visibility: self.visibility,
             docs: self.docs,
             sig: self.sig.map(|s| s.lower(tcx)),
+            attributes: self.attributes.lower(tcx),
         }
     }
 }