fix dims type

Author: ytdHuang

src/qobj/dimensions.jl

@@ -71,8 +71,7 @@ _gen_dimensions(dims::Any) = Dimensions(dims)
 # obtain dims in the type of SVector with integers
 dimensions_to_dims(dimensions::NTuple{N,AbstractSpace}) where {N} = vcat(map(dimensions_to_dims, dimensions)...)
 dimensions_to_dims(dimensions::Dimensions) = dimensions_to_dims(dimensions.to)
-dimensions_to_dims(dimensions::GeneralDimensions) =
-    (dimensions_to_dims(dimensions.to), dimensions_to_dims(dimensions.from)) # tuple
+dimensions_to_dims(dimensions::GeneralDimensions) = SVector{2}(dimensions_to_dims(dimensions.to), dimensions_to_dims(dimensions.from))
 
 Base.length(::AbstractDimensions{N}) where {N} = N
 
@@ -85,3 +84,9 @@ Base.prod(spaces::NTuple{N,AbstractSpace}) where {N} = prod(_get_space_size, spa
 LinearAlgebra.transpose(dimensions::Dimensions) = dimensions
 LinearAlgebra.transpose(dimensions::GeneralDimensions) = GeneralDimensions(dimensions.from, dimensions.to) # switch `to` and `from`
 LinearAlgebra.adjoint(dimensions::AbstractDimensions) = transpose(dimensions)
+
+_get_dims_string(dimensions::Dimensions) = string(dimensions_to_dims(dimensions))
+function _get_dims_string(dimensions::GeneralDimensions)
+    dims = dimensions_to_dims(dimensions)
+    return "[$(string(dims[1])), $(string(dims[2]))]"
+end

src/qobj/eigsolve.jl

@@ -99,7 +99,7 @@ Base.iterate(res::EigsolveResult, ::Val{:vectors}) = (res.vectors, Val(:done))
 Base.iterate(res::EigsolveResult, ::Val{:done}) = nothing
 
 function Base.show(io::IO, res::EigsolveResult)
-    println(io, "EigsolveResult:   type=", res.type, "   dims=", res.dims)
+    println(io, "EigsolveResult:   type=", res.type, "   dims=", _get_dims_string(res.dimensions))
     println(io, "values:")
     show(io, MIME("text/plain"), res.values)
     print(io, "\n")

src/qobj/quantum_object.jl

@@ -149,7 +149,7 @@ function Base.show(
     },
 }
     op_data = QO.data
-    println(io, "Quantum Object:   type=", QO.type, "   dims=", QO.dims, "   size=", size(op_data))
+    println(io, "Quantum Object:   type=", QO.type, "   dims=", _get_dims_string(QO.dimensions), "   size=", size(op_data))
     return show(io, MIME("text/plain"), op_data)
 end
 
@@ -160,7 +160,7 @@ function Base.show(io::IO, QO::QuantumObject)
         "Quantum Object:   type=",
         QO.type,
         "   dims=",
-        QO.dims,
+        _get_dims_string(QO.dimensions),
         "   size=",
         size(op_data),
         "   ishermitian=",

src/qobj/quantum_object_evo.jl

@@ -134,7 +134,7 @@ function Base.show(io::IO, QO::QuantumObjectEvolution)
         "Quantum Object Evo.:   type=",
         QO.type,
         "   dims=",
-        QO.dims,
+        _get_dims_string(QO.dimensions),
         "   size=",
         size(op_data),
         "   ishermitian=",