Merge pull request #25746 from JuliaLang/aa/build-warns

Avoid Julia warnings during the build

base/reducedim.jl

@@ -309,7 +309,7 @@ reducedim(op, A::AbstractArray, region) = mapreducedim(identity, op, A, region)
 
 ##### Specific reduction functions #####
 """
-    sum(A, dims)
+    sum(A::AbstractArray, dims)
 
 Sum elements of an array over the given dimensions.
 
@@ -330,7 +330,7 @@ julia> sum(A, 2)
  7
 ```
 """
-sum(A, dims)
+sum(A::AbstractArray, dims)
 
 """
     sum!(r, A)
@@ -357,7 +357,7 @@ julia> sum!([1 1], A)
 sum!(r, A)
 
 """
-    prod(A, dims)
+    prod(A::AbstractArray, dims)
 
 Multiply elements of an array over the given dimensions.
 
@@ -378,7 +378,7 @@ julia> prod(A, 2)
  12
 ```
 """
-prod(A, dims)
+prod(A::AbstractArray, dims)
 
 """
     prod!(r, A)

base/uuid.jl

@@ -62,6 +62,7 @@ let groupings = [1:8; 10:13; 15:18; 20:23; 25:36]
 end
 
 let groupings = [36:-1:25; 23:-1:20; 18:-1:15; 13:-1:10; 8:-1:1]
+    global string
     function string(u::UUID)
         u = u.value
         a = Base.StringVector(36)

stdlib/Dates/src/parse.jl

@@ -46,41 +46,39 @@ Return a 3-element tuple `(values, pos, num_parsed)`:
 
     # Pre-assign variables to defaults. Allows us to use `@goto done` without worrying about
     # unassigned variables.
-    assign_defaults = Expr[
-        quote
+    assign_defaults = Expr[]
+    for (name, default) in zip(value_names, value_defaults)
+        push!(assign_defaults, quote
             $name = $default
-        end
-        for (name, default) in zip(value_names, value_defaults)
-    ]
+        end)
+    end
 
     vi = 1
-    parsers = Expr[
-        begin
-            if directives[i] <: DatePart
-                name = value_names[vi]
-                val = Symbol(:val, name)
-                vi += 1
-                quote
-                    pos > len && @goto done
-                    $val, next_pos = tryparsenext(directives[$i], str, pos, len, locale)
-                    $val === nothing && @goto error
-                    $name = $val
-                    pos = next_pos
-                    num_parsed += 1
-                    directive_index += 1
-                end
-            else
-                quote
-                    pos > len && @goto done
-                    delim, next_pos = tryparsenext(directives[$i], str, pos, len, locale)
-                    delim === nothing && @goto error
-                    pos = next_pos
-                    directive_index += 1
-                end
-            end
+    parsers = Expr[]
+    for i = 1:length(directives)
+        if directives[i] <: DatePart
+            name = value_names[vi]
+            val = Symbol(:val, name)
+            vi += 1
+            push!(parsers, quote
+                pos > len && @goto done
+                $val, next_pos = tryparsenext(directives[$i], str, pos, len, locale)
+                $val === nothing && @goto error
+                $name = $val
+                pos = next_pos
+                num_parsed += 1
+                directive_index += 1
+            end)
+        else
+            push!(parsers, quote
+                pos > len && @goto done
+                delim, next_pos = tryparsenext(directives[$i], str, pos, len, locale)
+                delim === nothing && @goto error
+                pos = next_pos
+                directive_index += 1
+            end)
         end
-        for i in 1:length(directives)
-    ]
+    end
 
     quote
         directives = df.tokens