Rename directories for some crates from `syntax_x` to `rustc_x`

`syntax_expand` -> `rustc_expand`
`syntax_pos` -> `rustc_span`
`syntax_ext` -> `rustc_builtin_macros`

1 files changed, 0 insertions, 112 deletions

diff --git a/src/libsyntax_ext/deriving/cmp/partial_eq.rs b/src/libsyntax_ext/deriving/cmp/partial_eq.rs
deleted file mode 100644
index 91c13b76a00..00000000000
--- a/src/libsyntax_ext/deriving/cmp/partial_eq.rs
+++ /dev/null
@@ -1,112 +0,0 @@
-use crate::deriving::generic::ty::*;
-use crate::deriving::generic::*;
-use crate::deriving::{path_local, path_std};
-
-use syntax::ast::{BinOpKind, Expr, MetaItem};
-use syntax::ptr::P;
-use syntax::symbol::sym;
-use syntax_expand::base::{Annotatable, ExtCtxt};
-use syntax_pos::Span;
-
-pub fn expand_deriving_partial_eq(
-    cx: &mut ExtCtxt<'_>,
-    span: Span,
-    mitem: &MetaItem,
-    item: &Annotatable,
-    push: &mut dyn FnMut(Annotatable),
-) {
-    // structures are equal if all fields are equal, and non equal, if
-    // any fields are not equal or if the enum variants are different
-    fn cs_op(
-        cx: &mut ExtCtxt<'_>,
-        span: Span,
-        substr: &Substructure<'_>,
-        op: BinOpKind,
-        combiner: BinOpKind,
-        base: bool,
-    ) -> P<Expr> {
-        let op = |cx: &mut ExtCtxt<'_>, span: Span, self_f: P<Expr>, other_fs: &[P<Expr>]| {
-            let other_f = match other_fs {
-                [o_f] => o_f,
-                _ => cx.span_bug(span, "not exactly 2 arguments in `derive(PartialEq)`"),
-            };
-
-            cx.expr_binary(span, op, self_f, other_f.clone())
-        };
-
-        cs_fold1(
-            true, // use foldl
-            |cx, span, subexpr, self_f, other_fs| {
-                let eq = op(cx, span, self_f, other_fs);
-                cx.expr_binary(span, combiner, subexpr, eq)
-            },
-            |cx, args| {
-                match args {
-                    Some((span, self_f, other_fs)) => {
-                        // Special-case the base case to generate cleaner code.
-                        op(cx, span, self_f, other_fs)
-                    }
-                    None => cx.expr_bool(span, base),
-                }
-            },
-            Box::new(|cx, span, _, _| cx.expr_bool(span, !base)),
-            cx,
-            span,
-            substr,
-        )
-    }
-
-    fn cs_eq(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_>) -> P<Expr> {
-        cs_op(cx, span, substr, BinOpKind::Eq, BinOpKind::And, true)
-    }
-    fn cs_ne(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_>) -> P<Expr> {
-        cs_op(cx, span, substr, BinOpKind::Ne, BinOpKind::Or, false)
-    }
-
-    macro_rules! md {
-        ($name:expr, $f:ident) => {{
-            let inline = cx.meta_word(span, sym::inline);
-            let attrs = vec![cx.attribute(inline)];
-            MethodDef {
-                name: $name,
-                generics: LifetimeBounds::empty(),
-                explicit_self: borrowed_explicit_self(),
-                args: vec![(borrowed_self(), "other")],
-                ret_ty: Literal(path_local!(bool)),
-                attributes: attrs,
-                is_unsafe: false,
-                unify_fieldless_variants: true,
-                combine_substructure: combine_substructure(Box::new(|a, b, c| $f(a, b, c))),
-            }
-        }};
-    }
-
-    super::inject_impl_of_structural_trait(
-        cx,
-        span,
-        item,
-        path_std!(cx, marker::StructuralPartialEq),
-        push,
-    );
-
-    // avoid defining `ne` if we can
-    // c-like enums, enums without any fields and structs without fields
-    // can safely define only `eq`.
-    let mut methods = vec![md!("eq", cs_eq)];
-    if !is_type_without_fields(item) {
-        methods.push(md!("ne", cs_ne));
-    }
-
-    let trait_def = TraitDef {
-        span,
-        attributes: Vec::new(),
-        path: path_std!(cx, cmp::PartialEq),
-        additional_bounds: Vec::new(),
-        generics: LifetimeBounds::empty(),
-        is_unsafe: false,
-        supports_unions: false,
-        methods,
-        associated_types: Vec::new(),
-    };
-    trait_def.expand(cx, mitem, item, push)
-}