From 5d9eedb734ea6ce6c934cc895229a35ffeebba00 Mon Sep 17 00:00:00 2001
From: "Bowen S. Zhu" <bszhu@fas.harvard.edu>
Date: Sat, 12 Nov 2022 20:51:11 -0500
Subject: [PATCH] Avoid construction of `EmptyQuad` in type checking

---
 src/auxfuns.jl | 4 ++--
 src/tensor.jl  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/auxfuns.jl b/src/auxfuns.jl
index 76b2036..ce6b8b2 100644
--- a/src/auxfuns.jl
+++ b/src/auxfuns.jl
@@ -23,7 +23,7 @@ nw(mop::MultiOrthoPoly)
 ```
 returns nodes and weights in matrix form
 """
-nw(quad::typeof(EmptyQuad())) = Array{Float64}(undef, 0, 2)
+nw(::EmptyQuad) = Array{Float64}(undef, 0, 2)
 
 function nw(quad::AbstractQuad)
     [quad.nodes quad.weights]
@@ -89,7 +89,7 @@ function integrate(f::Function, nodes::AbstractVector{<:Real},
 end
 
 function integrate(f::Function, quad::AbstractQuad)
-    typeof(quad) == typeof(EmptyQuad()) &&
+    quad isa EmptyQuad &&
         throw(DomainError(quad, "supplied an empty quadrature"))
     integrate(f, quad.nodes, quad.weights)
 end
diff --git a/src/tensor.jl b/src/tensor.jl
index 6c9ec48..5fb1ee1 100644
--- a/src/tensor.jl
+++ b/src/tensor.jl
@@ -25,13 +25,13 @@ function computeTensorizedSP(m::Integer, op::AbstractVector, ind::AbstractMatrix
 end
 
 function computeTensorizedSP(m::Integer, mop::MultiOrthoPoly)
-    any([typeof(op.quad) == typeof(EmptyQuad()) for op in mop.uni]) &&
+    any(op.quad isa EmptyQuad for op in mop.uni) &&
         throw(InconsistencyError("at least one quadrature rule missing"))
     computeTensorizedSP(m, mop.uni, mop.ind)
 end
 
 function computeTensorizedSP(m::Integer, op::AbstractOrthoPoly)
-    typeof(op.quad) == typeof(EmptyQuad()) &&
+    op.quad isa EmptyQuad &&
         throw(InconsistencyError("no quadrature rule provided"))
     computeTensorizedSP(m, [op], calculateMultiIndices(1, deg(op)))
 end