allow swapping Int32 literals

Tests on Julia < 1.5 have to be disabled until a new release is made,
because the last release of SwapLiterals fails with Int32 swapping.

.travis.yml

@@ -4,9 +4,11 @@ os:
   - linux
   - osx
 
+arch:
+  - x64
+  - x86
+
 julia:
-  - 1.1
-  - 1.4
   - 1.5
   - nightly
 

SwapLiterals/src/SwapLiterals.jl

@@ -38,13 +38,13 @@ function literals_swapper(swaps)
         throw(ArgumentError("unsupported type for swapper"))
 
     foreach(swaps) do kv
-        kv[1] ∈ Any[Float32,Float64,Int,String,Char,
+        kv[1] ∈ Any[Float32,Float64,Int32,Int64,String,Char,
                     Base.BitUnsigned64_types...,Int128,UInt128,BigInt,
                     :braces, :tuple, :vect, :(:=)] ||
                         throw(ArgumentError("type $(kv[1]) cannot be replaced"))
     end
 
-    function swapper(@nospecialize(ex::Union{Float32,Float64,Int,String,Char,
+    function swapper(@nospecialize(ex::Union{Float32,Float64,Int32,Int64,String,Char,
                                              Base.BitUnsigned64}), quoted=false)
 
         swap = get(swaps, typeof(ex), nothing)

SwapLiterals/test/runtests.jl

@@ -207,9 +207,15 @@ makecoloneq(ex) = Expr(:(=),
     # Int & UInt
     @swapliterals Int => :UInt8 UInt => :Int8 begin
         @test 1 isa UInt8
-        @test 0x0000000000000001 isa Int8
+        if UInt === UInt64
+            @test 0x0000000000000001 isa Int8
+            @test 0x00000001 isa UInt32
+        else
+            @test 0x00000001 isa Int8
+            @test 0x0000000000000001 isa UInt64
+        end
     end
-    @swapliterals Int64=>:UInt8 UInt64=>:Int8 begin
+    @swapliterals Int32=>:UInt8 Int64=>:UInt8 UInt64=>:Int8 begin
         @test 1 isa UInt8
         @test 0x0000000000000001 isa Int8
     end
@@ -238,7 +244,7 @@ makecoloneq(ex) = Expr(:(=),
         @test 'a' isa String
     end
 
-    @swapliterals Char => :UInt String => :Symbol begin
+    @swapliterals Char => :UInt64 String => :Symbol begin
         @test "123" isa Symbol
         @test 'a' === 0x0000000000000061
     end