From 9c6086a554547664cc7daf82bf854f9b26409c92 Mon Sep 17 00:00:00 2001
From: Jukka Aho <ahojukka5@gmail.com>
Date: Sat, 15 Nov 2025 05:33:26 +0200
Subject: [PATCH] fix(sparse): Qualify isempty() with Base.isempty()
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Fix method ambiguity by explicitly qualifying Base.isempty calls.

Changes:
- function isempty(A::SparseMatrixCOO) → function Base.isempty(A::SparseMatrixCOO)
- Internal isempty() calls qualified with Base.isempty()
- Avoids method ambiguity warnings

Consistent with assembly/problems.jl fix (commit 0d41c8c).
---
 src/sparse/sparse.jl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/sparse/sparse.jl b/src/sparse/sparse.jl
index 17ed902..f8342ec 100644
--- a/src/sparse/sparse.jl
+++ b/src/sparse/sparse.jl
@@ -89,8 +89,8 @@ function append!(A::SparseMatrixCOO, B::SparseMatrixCOO)
     return nothing
 end
 
-function isempty(A::SparseMatrixCOO)
-    return isempty(A.I) && isempty(A.J) && isempty(A.V)
+function Base.isempty(A::SparseMatrixCOO)
+    return Base.isempty(A.I) && Base.isempty(A.J) && Base.isempty(A.V)
 end
 
 """