Merge branch 'master' into aa/more-0.7

README.md

@@ -267,6 +267,8 @@ Currently, the `@compat` macro supports the following syntaxes:
 
 * `Void` is now `Nothing` with an alias `Cvoid` for C interop ([#25162]).
 
+* `unshift!` and `shift!` are now `pushfirst!` and `popfirst!` ([#25100]).
+
 * `ipermute!` is now `invpermute!` ([#25168]).
 
 ## New macros
@@ -424,6 +426,7 @@ includes this fix. Find the minimum version from there.
 [#25021]: https://github.com/JuliaLang/julia/issues/25021
 [#25056]: https://github.com/JuliaLang/julia/issues/25056
 [#25057]: https://github.com/JuliaLang/julia/issues/25057
+[#25100]: https://github.com/JuliaLang/julia/issues/25100
 [#25102]: https://github.com/JuliaLang/julia/issues/25102
 [#25162]: https://github.com/JuliaLang/julia/issues/25162
 [#25165]: https://github.com/JuliaLang/julia/issues/25165

src/Compat.jl

@@ -1052,6 +1052,13 @@ else
     import Base: notnothing
 end
 
+# 0.7.0-DEV.3155
+@static if !isdefined(Base, :pushfirst!)
+    const pushfirst! = unshift!
+    const popfirst! = shift!
+    export pushfirst!, popfirst!
+end
+
 # 0.7.0-DEV.3173
 @static if !isdefined(Base, :invpermute!)
     const invpermute! = ipermute!

test/runtests.jl

@@ -1063,6 +1063,12 @@ end
 @test Compat.notnothing(1) == 1
 @test_throws ArgumentError Compat.notnothing(nothing)
 
+# 0.7.0-DEV.3155
+let coolvec = [1,2,3]
+    @test pushfirst!(coolvec, 0) == [0,1,2,3]
+    @test popfirst!(coolvec) == 0
+end
+
 # 0.7.0-DEV.3173
 @test invpermute!(permute!([1, 2], 2:-1:1), 2:-1:1) == [1, 2]