Refactoring code

- Hopefully someday coming 2d implementation is in separate file beam2d.jl.
- Instead of import FEMBase: <function>, use directly FEMBase.<function>

src/FEMBeam.jl

@@ -10,31 +10,10 @@ using Reexport
 include("get_beam_stiffness_matrix_2d.jl")
 include("get_beam_forces_vector_2d.jl")
 include("get_beam_mass_matrix_2d.jl")
-
-import FEMBase: get_unknown_field_name,
-                get_formulation_type,
-                assemble_elements!
-
-type Beam2D <: FieldProblem
-end
-
-function get_unknown_field_name(::Problem{Beam2D})
-    return "displacement"
-end
-
-function assemble_elements!{B}(::Problem{Beam2D}, ::Assembly,
-                               elements::Vector{Element{B}}, ::Float64)
-
-    for element in elements
-        info("Not doing anything useful right now.")
-    end
-
-end
-
+include("beam2d.jl")
 export Beam2D
 
 include("beam3d.jl")
-
 export Beam
 
 end

src/beam2d.jl

@@ -0,0 +1,19 @@
+# This file is a part of JuliaFEM.
+# License is MIT: see https://github.com/JuliaFEM/FEMBeam.jl/blob/master/LICENSE
+
+type Beam2D <: FieldProblem
+end
+
+function FEMBase.get_unknown_field_name(::Problem{Beam2D})
+    return "displacement"
+end
+
+function FEMBase.assemble_elements!{B}(::Problem{Beam2D}, ::Assembly,
+                               elements::Vector{Element{B}}, ::Float64)
+
+    for element in elements
+        info("Not doing anything useful right now.")
+    end
+
+    return nothing
+end

src/beam3d.jl

@@ -13,17 +13,13 @@ Euler-Bernoulli beam, 3d formulation.
 type Beam <: FieldProblem
 end
 
-import FEMBase: get_unknown_field_name,
-                get_formulation_type,
-                assemble_elements!,
-                get_integration_points
 using FEMQuad: get_quadrature_points
 
-function get_unknown_field_name(::Problem{Beam})
+function FEMBase.get_unknown_field_name(::Problem{Beam})
     return "displacement"
 end
 
-function get_integration_points(::Problem{Beam}, ::Element{Seg2})
+function FEMBase.get_integration_points(::Problem{Beam}, ::Element{Seg2})
     return get_quadrature_points(Val{:GLSEG3})
 end
 
@@ -68,8 +64,8 @@ function get_rotation_matrix(X1, X2, n1)
     return T
 end
 
-function assemble_elements!(problem::Problem{Beam}, assembly::Assembly,
-                            elements::Vector{Element{Seg2}}, time::Float64)
+function FEMBase.assemble_elements!(problem::Problem{Beam}, assembly::Assembly,
+                                    elements::Vector{Element{Seg2}}, time::Float64)
 
     B = zeros(4, 12)
     N = zeros(6, 12)
@@ -230,12 +226,12 @@ function assemble_elements!(problem::Problem{Beam}, assembly::Assembly,
         add!(assembly.f, gdofs, fe)
     end
 
-    nothing
+    return nothing
 
 end
 
-function assemble_elements!(problem::Problem{Beam}, assembly::Assembly,
-                            elements::Vector{Element{Poi1}}, time::Float64)
+function FEMBase.assemble_elements!(problem::Problem{Beam}, assembly::Assembly,
+                                    elements::Vector{Element{Poi1}}, time::Float64)
 
     for element in elements
         gdofs = get_gdofs(problem, element)
@@ -263,6 +259,6 @@ function assemble_elements!(problem::Problem{Beam}, assembly::Assembly,
         end
     end
 
-    nothing
+    return nothing
 
 end

test/test_beam2d.jl

@@ -0,0 +1,11 @@
+# This file is a part of JuliaFEM.
+# License is MIT: see https://github.com/JuliaFEM/FEMBeam.jl/blob/master/LICENSE
+
+using FEMBeam
+using FEMBase.Test
+beam_element = Element(Seg2, [1, 2])
+problem = Problem(Beam2D, "test problem", 3)
+add_elements!(problem, [beam_element])
+
+@test get_unknown_field_name(problem) == "displacement"
+@test assemble_elements!(problem, 0.0) == nothing