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Short-circuit all for AbstractFill #329

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Merged
jishnub merged 4 commits into from
Feb 5, 2024
Merged

Short-circuit all for AbstractFill #329

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e18da29
Short-circuit all for AbstractFill
jishnub Dec 12, 2023
cdb2f5b
expand the cases in all
jishnub Dec 12, 2023
5bde556
Handle the fallback case through all
jishnub Dec 12, 2023
fcabd33
Simplify implementation
jishnub Feb 5, 2024
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14 changes: 12 additions & 2 deletions src/FillArrays.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -643,8 +643,18 @@ end

# In particular, these make iszero(Eye(n)) efficient.
# use any/all on scalar to get Boolean error message
any(f::Function, x::AbstractFill) = !isempty(x) && any(f(getindex_value(x)))
all(f::Function, x::AbstractFill) = isempty(x) || all(f(getindex_value(x)))
function any(f::Function, x::AbstractFill)
isempty(x) && return false
# If the condition is true for one value, then it's true for all
fval = f(getindex_value(x))
any((fval,))
end
function all(f::Function, x::AbstractFill)
isempty(x) && return true
# If the condition is true for one value, then it's true for all
fval = f(getindex_value(x))
return all((fval,))
end
any(x::AbstractFill) = any(identity, x)
all(x::AbstractFill) = all(identity, x)

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8 changes: 8 additions & 0 deletions test/runtests.jl
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Expand Up @@ -1336,6 +1336,9 @@ end
@test iszero(Fill(SMatrix{2,2}(0,0,0,0), 2))
@test iszero(Fill(SMatrix{2,2}(0,0,0,1), 0))

# compile-time evaluation
@test @inferred((Z -> Val(iszero(Z)))(Zeros(3,3))) == Val(true)

@testset "all/any" begin
@test any(Ones{Bool}(10)) === all(Ones{Bool}(10)) === any(Fill(true,10)) === all(Fill(true,10)) === true
@test any(Zeros{Bool}(10)) === all(Zeros{Bool}(10)) === any(Fill(false,10)) === all(Fill(false,10)) === false
Expand All @@ -1345,6 +1348,11 @@ end
@test all(Fill(2,0))
@test !any(Fill(2,0))
@test any(Trues(2,0)) == any(trues(2,0))
@test_throws TypeError all(Fill(2,2))
@test all(iszero, Fill(missing,0)) === all(iszero, fill(missing,0)) === true
@test all(iszero, Fill(missing,2)) === all(iszero, fill(missing,2)) === missing
@test any(iszero, Fill(missing,0)) === any(iszero, fill(missing,0)) === false
@test any(iszero, Fill(missing,2)) === any(iszero, fill(missing,2)) === missing
end

@testset "Error" begin
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