Auto merge of #27684 - alexcrichton:remove-deprecated, r=aturon

This commit removes all unstable and deprecated functions in the standard
library. A release was recently cut (1.3) which makes this a good time for some
spring cleaning of the deprecated functions.

Author: bors

src/etc/unicode.py

@@ -395,46 +395,6 @@ def emit_conversions_module(f, to_upper, to_lower, to_title):
         is_pub=False, t_type = t_type, pfun=pfun)
     f.write("}\n\n")
 
-def emit_grapheme_module(f, grapheme_table, grapheme_cats):
-    f.write("""pub mod grapheme {
-    use core::slice::SliceExt;
-    pub use self::GraphemeCat::*;
-    use core::result::Result::{Ok, Err};
-
-    #[allow(non_camel_case_types)]
-    #[derive(Clone, Copy)]
-    pub enum GraphemeCat {
-""")
-    for cat in grapheme_cats + ["Any"]:
-        f.write("        GC_" + cat + ",\n")
-    f.write("""    }
-
-    fn bsearch_range_value_table(c: char, r: &'static [(char, char, GraphemeCat)]) -> GraphemeCat {
-        use core::cmp::Ordering::{Equal, Less, Greater};
-        match r.binary_search_by(|&(lo, hi, _)| {
-            if lo <= c && c <= hi { Equal }
-            else if hi < c { Less }
-            else { Greater }
-        }) {
-            Ok(idx) => {
-                let (_, _, cat) = r[idx];
-                cat
-            }
-            Err(_) => GC_Any
-        }
-    }
-
-    pub fn grapheme_category(c: char) -> GraphemeCat {
-        bsearch_range_value_table(c, grapheme_cat_table)
-    }
-
-""")
-
-    emit_table(f, "grapheme_cat_table", grapheme_table, "&'static [(char, char, GraphemeCat)]",
-        pfun=lambda x: "(%s,%s,GC_%s)" % (escape_char(x[0]), escape_char(x[1]), x[2]),
-        is_pub=False)
-    f.write("}\n")
-
 def emit_charwidth_module(f, width_table):
     f.write("pub mod charwidth {\n")
     f.write("    use core::option::Option;\n")
@@ -497,79 +457,6 @@ def emit_norm_module(f, canon, compat, combine, norm_props):
     canon_comp_keys = canon_comp.keys()
     canon_comp_keys.sort()
 
-    f.write("pub mod normalization {\n")
-
-    def mkdata_fun(table):
-        def f(char):
-            data = "(%s,&[" % escape_char(char)
-            first = True
-            for d in table[char]:
-                if not first:
-                    data += ","
-                first = False
-                data += escape_char(d)
-            data += "])"
-            return data
-        return f
-
-    f.write("    // Canonical decompositions\n")
-    emit_table(f, "canonical_table", canon_keys, "&'static [(char, &'static [char])]",
-        pfun=mkdata_fun(canon))
-
-    f.write("    // Compatibility decompositions\n")
-    emit_table(f, "compatibility_table", compat_keys, "&'static [(char, &'static [char])]",
-        pfun=mkdata_fun(compat))
-
-    def comp_pfun(char):
-        data = "(%s,&[" % escape_char(char)
-        canon_comp[char].sort(lambda x, y: x[0] - y[0])
-        first = True
-        for pair in canon_comp[char]:
-            if not first:
-                data += ","
-            first = False
-            data += "(%s,%s)" % (escape_char(pair[0]), escape_char(pair[1]))
-        data += "])"
-        return data
-
-    f.write("    // Canonical compositions\n")
-    emit_table(f, "composition_table", canon_comp_keys,
-        "&'static [(char, &'static [(char, char)])]", pfun=comp_pfun)
-
-    f.write("""
-    fn bsearch_range_value_table(c: char, r: &'static [(char, char, u8)]) -> u8 {
-        use core::cmp::Ordering::{Equal, Less, Greater};
-        use core::slice::SliceExt;
-        use core::result::Result::{Ok, Err};
-        match r.binary_search_by(|&(lo, hi, _)| {
-            if lo <= c && c <= hi { Equal }
-            else if hi < c { Less }
-            else { Greater }
-        }) {
-            Ok(idx) => {
-                let (_, _, result) = r[idx];
-                result
-            }
-            Err(_) => 0
-        }
-    }\n
-""")
-
-    emit_table(f, "combining_class_table", combine, "&'static [(char, char, u8)]", is_pub=False,
-            pfun=lambda x: "(%s,%s,%s)" % (escape_char(x[0]), escape_char(x[1]), x[2]))
-
-    f.write("""    #[deprecated(reason = "use the crates.io `unicode-normalization` lib instead",
-                 since = "1.0.0")]
-    #[unstable(feature = "unicode",
-               reason = "this functionality will be moved to crates.io")]
-    pub fn canonical_combining_class(c: char) -> u8 {
-        bsearch_range_value_table(c, combining_class_table)
-    }
-
-}
-
-""")
-
 def remove_from_wtable(wtable, val):
     wtable_out = []
     while wtable:
@@ -649,53 +536,3 @@ def optimize_width_table(wtable):
         # normalizations and conversions module
         emit_norm_module(rf, canon_decomp, compat_decomp, combines, norm_props)
         emit_conversions_module(rf, to_upper, to_lower, to_title)
-
-        ### character width module
-        width_table = []
-        for zwcat in ["Me", "Mn", "Cf"]:
-            width_table.extend(map(lambda (lo, hi): (lo, hi, 0, 0), gencats[zwcat]))
-        width_table.append((4448, 4607, 0, 0))
-
-        # get widths, except those that are explicitly marked zero-width above
-        ea_widths = load_east_asian_width(["W", "F", "A"], ["Me", "Mn", "Cf"])
-        # these are doublewidth
-        for dwcat in ["W", "F"]:
-            width_table.extend(map(lambda (lo, hi): (lo, hi, 2, 2), ea_widths[dwcat]))
-        width_table.extend(map(lambda (lo, hi): (lo, hi, 1, 2), ea_widths["A"]))
-
-        width_table.sort(key=lambda w: w[0])
-
-        # soft hyphen is not zero width in preformatted text; it's used to indicate
-        # a hyphen inserted to facilitate a linebreak.
-        width_table = remove_from_wtable(width_table, 173)
-
-        # optimize the width table by collapsing adjacent entities when possible
-        width_table = optimize_width_table(width_table)
-        emit_charwidth_module(rf, width_table)
-
-        ### grapheme cluster module
-        # from http://www.unicode.org/reports/tr29/#Grapheme_Cluster_Break_Property_Values
-        grapheme_cats = load_properties("auxiliary/GraphemeBreakProperty.txt", [])
-
-        # Control
-        #  Note 1:
-        # This category also includes Cs (surrogate codepoints), but Rust's `char`s are
-        # Unicode Scalar Values only, and surrogates are thus invalid `char`s.
-        # Thus, we have to remove Cs from the Control category
-        #  Note 2:
-        # 0x0a and 0x0d (CR and LF) are not in the Control category for Graphemes.
-        # However, the Graphemes iterator treats these as a special case, so they
-        # should be included in grapheme_cats["Control"] for our implementation.
-        grapheme_cats["Control"] = group_cat(list(
-            (set(ungroup_cat(grapheme_cats["Control"]))
-             | set(ungroup_cat(grapheme_cats["CR"]))
-             | set(ungroup_cat(grapheme_cats["LF"])))
-            - set(ungroup_cat([surrogate_codepoints]))))
-        del(grapheme_cats["CR"])
-        del(grapheme_cats["LF"])
-
-        grapheme_table = []
-        for cat in grapheme_cats:
-            grapheme_table.extend([(x, y, cat) for (x, y) in grapheme_cats[cat]])
-        grapheme_table.sort(key=lambda w: w[0])
-        emit_grapheme_module(rf, grapheme_table, grapheme_cats.keys())

src/liballoc/arc.rs

@@ -272,18 +272,6 @@ impl<T: ?Sized> Arc<T> {
     }
 }
 
-/// Get the number of weak references to this value.
-#[inline]
-#[unstable(feature = "arc_counts")]
-#[deprecated(since = "1.2.0", reason = "renamed to Arc::weak_count")]
-pub fn weak_count<T: ?Sized>(this: &Arc<T>) -> usize { Arc::weak_count(this) }
-
-/// Get the number of strong references to this value.
-#[inline]
-#[unstable(feature = "arc_counts")]
-#[deprecated(since = "1.2.0", reason = "renamed to Arc::strong_count")]
-pub fn strong_count<T: ?Sized>(this: &Arc<T>) -> usize { Arc::strong_count(this) }
-
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T: ?Sized> Clone for Arc<T> {
     /// Makes a clone of the `Arc<T>`.
@@ -484,13 +472,6 @@ impl<T: ?Sized> Arc<T> {
     }
 }
 
-#[inline]
-#[unstable(feature = "arc_unique")]
-#[deprecated(since = "1.2", reason = "use Arc::get_mut instead")]
-pub fn get_mut<T: ?Sized>(this: &mut Arc<T>) -> Option<&mut T> {
-    Arc::get_mut(this)
-}
-
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T: ?Sized> Drop for Arc<T> {
     /// Drops the `Arc<T>`.
@@ -860,7 +841,7 @@ mod tests {
     use std::sync::atomic::Ordering::{Acquire, SeqCst};
     use std::thread;
     use std::vec::Vec;
-    use super::{Arc, Weak, get_mut, weak_count, strong_count};
+    use super::{Arc, Weak};
     use std::sync::Mutex;
 
     struct Canary(*mut atomic::AtomicUsize);
@@ -898,43 +879,39 @@ mod tests {
 
     #[test]
     fn test_arc_get_mut() {
-        unsafe {
-            let mut x = Arc::new(3);
-            *get_mut(&mut x).unwrap() = 4;
-            assert_eq!(*x, 4);
-            let y = x.clone();
-            assert!(get_mut(&mut x).is_none());
-            drop(y);
-            assert!(get_mut(&mut x).is_some());
-            let _w = x.downgrade();
-            assert!(get_mut(&mut x).is_none());
-        }
+        let mut x = Arc::new(3);
+        *Arc::get_mut(&mut x).unwrap() = 4;
+        assert_eq!(*x, 4);
+        let y = x.clone();
+        assert!(Arc::get_mut(&mut x).is_none());
+        drop(y);
+        assert!(Arc::get_mut(&mut x).is_some());
+        let _w = x.downgrade();
+        assert!(Arc::get_mut(&mut x).is_none());
     }
 
     #[test]
     fn test_cowarc_clone_make_unique() {
-        unsafe {
-            let mut cow0 = Arc::new(75);
-            let mut cow1 = cow0.clone();
-            let mut cow2 = cow1.clone();
-
-            assert!(75 == *Arc::make_unique(&mut cow0));
-            assert!(75 == *Arc::make_unique(&mut cow1));
-            assert!(75 == *Arc::make_unique(&mut cow2));
-
-            *Arc::make_unique(&mut cow0) += 1;
-            *Arc::make_unique(&mut cow1) += 2;
-            *Arc::make_unique(&mut cow2) += 3;
-
-            assert!(76 == *cow0);
-            assert!(77 == *cow1);
-            assert!(78 == *cow2);
-
-            // none should point to the same backing memory
-            assert!(*cow0 != *cow1);
-            assert!(*cow0 != *cow2);
-            assert!(*cow1 != *cow2);
-        }
+        let mut cow0 = Arc::new(75);
+        let mut cow1 = cow0.clone();
+        let mut cow2 = cow1.clone();
+
+        assert!(75 == *Arc::make_unique(&mut cow0));
+        assert!(75 == *Arc::make_unique(&mut cow1));
+        assert!(75 == *Arc::make_unique(&mut cow2));
+
+        *Arc::make_unique(&mut cow0) += 1;
+        *Arc::make_unique(&mut cow1) += 2;
+        *Arc::make_unique(&mut cow2) += 3;
+
+        assert!(76 == *cow0);
+        assert!(77 == *cow1);
+        assert!(78 == *cow2);
+
+        // none should point to the same backing memory
+        assert!(*cow0 != *cow1);
+        assert!(*cow0 != *cow2);
+        assert!(*cow1 != *cow2);
     }
 
     #[test]
@@ -947,9 +924,7 @@ mod tests {
         assert!(75 == *cow1);
         assert!(75 == *cow2);
 
-        unsafe {
-            *Arc::make_unique(&mut cow0) += 1;
-        }
+        *Arc::make_unique(&mut cow0) += 1;
 
         assert!(76 == *cow0);
         assert!(75 == *cow1);
@@ -970,9 +945,7 @@ mod tests {
         assert!(75 == *cow0);
         assert!(75 == *cow1_weak.upgrade().unwrap());
 
-        unsafe {
-            *Arc::make_unique(&mut cow0) += 1;
-        }
+        *Arc::make_unique(&mut cow0) += 1;
 
         assert!(76 == *cow0);
         assert!(cow1_weak.upgrade().is_none());
@@ -1028,40 +1001,40 @@ mod tests {
     #[test]
     fn test_strong_count() {
         let a = Arc::new(0u32);
-        assert!(strong_count(&a) == 1);
+        assert!(Arc::strong_count(&a) == 1);
         let w = a.downgrade();
-        assert!(strong_count(&a) == 1);
+        assert!(Arc::strong_count(&a) == 1);
         let b = w.upgrade().expect("");
-        assert!(strong_count(&b) == 2);
-        assert!(strong_count(&a) == 2);
+        assert!(Arc::strong_count(&b) == 2);
+        assert!(Arc::strong_count(&a) == 2);
         drop(w);
         drop(a);
-        assert!(strong_count(&b) == 1);
+        assert!(Arc::strong_count(&b) == 1);
         let c = b.clone();
-        assert!(strong_count(&b) == 2);
-        assert!(strong_count(&c) == 2);
+        assert!(Arc::strong_count(&b) == 2);
+        assert!(Arc::strong_count(&c) == 2);
     }
 
     #[test]
     fn test_weak_count() {
         let a = Arc::new(0u32);
-        assert!(strong_count(&a) == 1);
-        assert!(weak_count(&a) == 0);
+        assert!(Arc::strong_count(&a) == 1);
+        assert!(Arc::weak_count(&a) == 0);
         let w = a.downgrade();
-        assert!(strong_count(&a) == 1);
-        assert!(weak_count(&a) == 1);
+        assert!(Arc::strong_count(&a) == 1);
+        assert!(Arc::weak_count(&a) == 1);
         let x = w.clone();
-        assert!(weak_count(&a) == 2);
+        assert!(Arc::weak_count(&a) == 2);
         drop(w);
         drop(x);
-        assert!(strong_count(&a) == 1);
-        assert!(weak_count(&a) == 0);
+        assert!(Arc::strong_count(&a) == 1);
+        assert!(Arc::weak_count(&a) == 0);
         let c = a.clone();
-        assert!(strong_count(&a) == 2);
-        assert!(weak_count(&a) == 0);
+        assert!(Arc::strong_count(&a) == 2);
+        assert!(Arc::weak_count(&a) == 0);
         let d = c.downgrade();
-        assert!(weak_count(&c) == 1);
-        assert!(strong_count(&c) == 2);
+        assert!(Arc::weak_count(&c) == 1);
+        assert!(Arc::strong_count(&c) == 2);
 
         drop(a);
         drop(c);