In [1]:

    

ex = :(f(x) = [sqrt(x[1]), 2*x[2]])


    

    
Out[1]:





:(f(x) = [sqrt(x[1]),2 * x[2]])

In [2]:

    

body = ex.args[2]


    

    
Out[2]:





:([sqrt(x[1]),2 * x[2]])

In [3]:

    

eval(body.args[1])


    

    




x not defined
while loading In[3], in expression starting on line 1

In [4]:

    

body.args


    

    
Out[4]:





2-element Array{Any,1}:
 :(sqrt(x[1]))
 :(2 * x[2])  

In [7]:

    

macro split(x)
    @show x
    @show typeof(x)
end


    

In [8]:

    

@split f(x)=hello


    

    




x => :(f(x) = begin  # In[8], line 1:
            hello
        end)
typeof(x) => Expr






    
Out[8]:





Expr

In [9]:

    




    

    




@multidim not defined
while loading In[9], in expression starting on line 1

In [86]:

    

macro multidim(f, x, ex)
    @show f
    @show x
    @show ex
    
        name = symbol(string(f, "1"))

    ex2 = :($(esc(name))($x) = $ex)
    
    
    #name = :($f)
    #     name = :(symbol(:$f), 1)
    
#     ex3 = :($(esc(name))($x) = $ex)
    
    @show ex2
    @show name
    
    Meta.show_sexpr(name)
    
#     @show ex3
    
    ex2

end


    

In [87]:

    

@multidim(f, x, [sqrt(x[1]), 2*x[2]])


    

    




f => :f
x => :x
ex => :([sqrt(x[1]),2 * x[2]])
ex2 => :(($(Expr(:escape, :f1)))(x) = [sqrt(x[1]),2 * x[2]])
name => :f1
:f1





    
Out[87]:





f1 (generic function with 1 method)

In [85]:

    

string(:x,"1")


    

    
Out[85]:





"x1"

In [45]:

    

f([1,2])


    

    
Out[45]:





2-element Array{Float64,1}:
 1.0
 4.0

In [28]:

    

eval(:(f(x) = [sqrt(x[1]),2 * x[2]]))


    

    
Out[28]:





f (generic function with 1 method)

In [29]:

    

f([1,2])


    

    
Out[29]:





2-element Array{Float64,1}:
 1.0
 4.0

In [ ]: