Commit ⋅ jump-dev/ComplexOptInterface.jl

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src/Bridges/Constraint/split_equalto.jl created.

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src/Bridges/Constraint/Constraint.jl has changed.

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1	+	struct SplitEqualToBridge{
2	+	T,
3	+	F<:MOI.Utilities.TypedScalarLike{T},
4	+	G<:MOI.Utilities.TypedScalarLike{Complex{T}},
5	+	} <: MOI.Bridges.Constraint.AbstractBridge
6	+	real_constraint::Union{Nothing,MOI.ConstraintIndex{F,MOI.EqualTo{T}}}
7	+	imag_constraint::Union{Nothing,MOI.ConstraintIndex{F,MOI.EqualTo{T}}}
8	+	end
9	+	function _add_constraint_if_nonzero(model, func, set)
10	+	if iszero(func) && iszero(MOI.constant(set))
11	+	return nothing
12	+	else
13	+	return MOI.add_constraint(model, func, set)
14	+	end
15	+	end
16	+	function MOI.Bridges.Constraint.bridge_constraint(
17	+	::Type{SplitEqualToBridge{T,F,G}},
18	+	model::MOI.ModelLike,
19	+	func::G,
20	+	set::MOI.EqualTo,
21	+	) where {T,F,G}
22	+	real_func = real(func)
23	+	imag_func = MOI.Utilities.operate(imag, T, func)
24	+	real_set = MOI.EqualTo(real(MOI.constant(set)))
25	+	imag_set = MOI.EqualTo(imag(MOI.constant(set)))
26	+	real_constraint = _add_constraint_if_nonzero(model, real_func, real_set)
27	+	imag_constraint = _add_constraint_if_nonzero(model, imag_func, imag_set)
28	+	return SplitEqualToBridge{T,F,G}(real_constraint, imag_constraint)
29	+	end
30	+
31	+	# We don't support `MOI.VariableIndex` as it would be a self-loop in the bridge graph
32	+	function MOI.supports_constraint(
33	+	::Type{SplitEqualToBridge{T}},
34	+	::Type{<:MOI.Utilities.TypedLike{Complex{T}}},
35	+	::Type{<:MOI.EqualTo},
36	+	) where {T}
37	+	return true
38	+	end
39	+	MOIB.added_constrained_variable_types(::Type{<:SplitEqualToBridge}) = Tuple{DataType}[]
40	+	function MOIB.added_constraint_types(::Type{SplitEqualToBridge{T,F,G}}) where {T,F,G}
41	+	return Tuple{DataType,DataType}[(F, MOI.EqualTo{T})]
42	+	end
43	+	function MOI.Bridges.Constraint.concrete_bridge_type(
44	+	::Type{<:SplitEqualToBridge{T}},
45	+	G::Type{<:MOI.Utilities.TypedLike},
46	+	::Type{<:MOI.EqualTo},
47	+	) where {T}
48	+	F = MA.promote_operation(imag, G)
49	+	return SplitEqualToBridge{T,F,G}
50	+	end
51	+
52	+	# Attributes, Bridge acting as a model
53	+	function MOI.get(
54	+	bridge::SplitEqualToBridge{T,F},
55	+	::MOI.NumberOfConstraints{F,MOI.EqualTo{T}},
56	+	) where {T,F}
57	+	return !isnothing(bridge.real_constraint) + !isnothing(bridge.imag_constraint)
58	+	end
59	+	function MOI.get(
60	+	bridge::SplitEqualToBridge{T,F},
61	+	::MOI.ListOfConstraintIndices{F,MOI.EqualTo{T}},
62	+	) where {T,F}
63	+	list = MOI.ConstraintIndex{F,MOI.EqualTo{T}}[]
64	+	if !isnothing(bridge.real_constraint)
65	+	push!(list, bridge.real_constraint)
66	+	end
67	+	if !isnothing(bridge.imag_constraint)
68	+	push!(list, bridge.imag_constraint)
69	+	end
70	+	return list
71	+	end
72	+
73	+	# Indices
74	+	function MOI.delete(model::MOI.ModelLike, bridge::SplitEqualToBridge)
75	+	if !isnothing(bridge.real_constraint)
76	+	MOI.delete(model, bridge.real_constraint)
77	+	end
78	+	if !isnothing(bridge.imag_constraint)
79	+	MOI.delete(model, bridge.imag_constraint)
80	+	end
81	+	end
82	+
83	+	# Attributes, Bridge acting as a constraint
84	+	function MOI.supports(
85	+	::MOI.ModelLike,
86	+	::Union{MOI.ConstraintPrimalStart,MOI.ConstraintDualStart},
87	+	::Type{<:SplitEqualToBridge},
88	+	)
89	+	return true
90	+	end
91	+	function MOI.get(
92	+	model::MOI.ModelLike,
93	+	attr::Union{
94	+	MOI.ConstraintPrimal,
95	+	MOI.ConstraintPrimalStart,
96	+	MOI.ConstraintDual,
97	+	MOI.ConstraintDualStart,
98	+	},
99	+	bridge::SplitEqualToBridge{T},
100	+	) where {T}
101	+	if isnothing(bridge.real_constraint)
102	+	real_value = zero(T)
103	+	else
104	+	real_value = MOI.get(model, attr, bridge.real_constraint)
105	+	end
106	+	if isnothing(bridge.imag_constraint)
107	+	imag_value = zero(T)
108	+	else
109	+	imag_value = MOI.get(model, attr, bridge.imag_constraint)
110	+	end
111	+	return real_value + imag_value * im
112	+	end
113	+	function MOI.set(
114	+	model::MOI.ModelLike,
115	+	attr::Union{MOI.ConstraintPrimalStart,MOI.ConstraintDualStart},
116	+	bridge::SplitEqualToBridge{T},
117	+	value,
118	+	) where {T}
119	+	if !isnothing(bridge.real_constraint)
120	+	MOI.set(model, attr, bridge.real_constraint, real(value))
121	+	end
122	+	if !isnothing(bridge.imag_constraint)
123	+	MOI.set(model, attr, bridge.real_constraint, imag(value))
124	+	end
125	+	return
126	+	end

Files		•	•	•	Coverage
src	218	160	0	58	73.39%
Project Totals (4 files)	218	160	0	58	73.39%

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