Fix MOI.supports for MOI.ObjectiveFunction (#63)

Author: odow

Project.toml

@@ -11,7 +11,7 @@ MathOptInterface = "b8f27783-ece8-5eb3-8dc8-9495eed66fee"
 Combinatorics = "1"
 HiGHS = "1"
 Ipopt = "1"
-MathOptInterface = "1.13"
+MathOptInterface = "1.15"
 julia = "1.6"
 
 [extras]

src/MultiObjectiveAlgorithms.jl

@@ -102,13 +102,8 @@ mutable struct Optimizer <: MOI.AbstractOptimizer
     solve_time::Float64
 
     function Optimizer(optimizer_factory)
-        inner = MOI.instantiate(
-            optimizer_factory;
-            with_bridge_type = Float64,
-            with_cache_type = Float64,
-        )
         return new(
-            inner,
+            MOI.instantiate(optimizer_factory; with_cache_type = Float64),
             nothing,
             nothing,
             SolutionPoint[],
@@ -191,10 +186,13 @@ function MOI.supports(
 end
 
 function MOI.supports(
-    ::Optimizer,
-    ::MOI.ObjectiveFunction{<:MOI.AbstractVectorFunction},
-)
-    return true
+    model::Optimizer,
+    ::MOI.ObjectiveFunction{F},
+) where {F<:MOI.AbstractVectorFunction}
+    G = MOI.Utilities.scalar_type(F)
+    H = MOI.Utilities.promote_operation(+, Float64, G, G)
+    return MOI.supports(model.inner, MOI.ObjectiveFunction{G}()) &&
+           MOI.supports(model.inner, MOI.ObjectiveFunction{H}())
 end
 
 const _ATTRIBUTES = Union{

test/algorithms/Chalmet.jl

@@ -191,7 +191,9 @@ function test_infeasible()
 end
 
 function test_vector_of_variables_objective()
-    model = MOA.Optimizer(HiGHS.Optimizer)
+    model = MOI.instantiate(; with_bridge_type = Float64) do
+        return MOA.Optimizer(HiGHS.Optimizer)
+    end
     MOI.set(model, MOA.Algorithm(), MOA.Chalmet())
     MOI.set(model, MOI.Silent(), true)
     x = MOI.add_variables(model, 2)

test/algorithms/Dichotomy.jl

@@ -393,7 +393,9 @@ function test_quadratic()
 end
 
 function test_vector_of_variables_objective()
-    model = MOA.Optimizer(HiGHS.Optimizer)
+    model = MOI.instantiate(; with_bridge_type = Float64) do
+        return MOA.Optimizer(HiGHS.Optimizer)
+    end
     MOI.set(model, MOA.Algorithm(), MOA.Dichotomy())
     MOI.set(model, MOI.Silent(), true)
     x = MOI.add_variables(model, 2)

test/algorithms/DominguezRios.jl

@@ -584,7 +584,9 @@ function test_time_limit()
 end
 
 function test_vector_of_variables_objective()
-    model = MOA.Optimizer(HiGHS.Optimizer)
+    model = MOI.instantiate(; with_bridge_type = Float64) do
+        return MOA.Optimizer(HiGHS.Optimizer)
+    end
     MOI.set(model, MOA.Algorithm(), MOA.DominguezRios())
     MOI.set(model, MOI.Silent(), true)
     x = MOI.add_variables(model, 2)

test/algorithms/EpsilonConstraint.jl

@@ -418,7 +418,9 @@ function test_time_limit_large()
 end
 
 function test_vector_of_variables_objective()
-    model = MOA.Optimizer(HiGHS.Optimizer)
+    model = MOI.instantiate(; with_bridge_type = Float64) do
+        return MOA.Optimizer(HiGHS.Optimizer)
+    end
     MOI.set(model, MOA.Algorithm(), MOA.EpsilonConstraint())
     MOI.set(model, MOI.Silent(), true)
     x = MOI.add_variables(model, 2)

test/algorithms/Hierarchical.jl

@@ -108,7 +108,9 @@ function test_unbounded()
 end
 
 function test_vector_of_variables_objective()
-    model = MOA.Optimizer(HiGHS.Optimizer)
+    model = MOI.instantiate(; with_bridge_type = Float64) do
+        return MOA.Optimizer(HiGHS.Optimizer)
+    end
     MOI.set(model, MOA.Algorithm(), MOA.Hierarchical())
     MOI.set(model, MOI.Silent(), true)
     x = MOI.add_variables(model, 2)

test/algorithms/KirlikSayin.jl

@@ -587,7 +587,9 @@ function test_time_limit()
 end
 
 function test_vector_of_variables_objective()
-    model = MOA.Optimizer(HiGHS.Optimizer)
+    model = MOI.instantiate(; with_bridge_type = Float64) do
+        return MOA.Optimizer(HiGHS.Optimizer)
+    end
     MOI.set(model, MOA.Algorithm(), MOA.KirlikSayin())
     MOI.set(model, MOI.Silent(), true)
     x = MOI.add_variables(model, 2)

test/algorithms/Lexicographic.jl

@@ -151,7 +151,9 @@ function test_unbounded()
 end
 
 function test_vector_of_variables_objective()
-    model = MOA.Optimizer(HiGHS.Optimizer)
+    model = MOI.instantiate(; with_bridge_type = Float64) do
+        return MOA.Optimizer(HiGHS.Optimizer)
+    end
     MOI.set(model, MOA.Algorithm(), MOA.Lexicographic())
     MOI.set(model, MOI.Silent(), true)
     x = MOI.add_variables(model, 2)