Getting custom code for defining methods

[aminya]

It is very useful to be able to get custom code from user and use them later for defining the extractor, creator, etc methods.

Two ways to do that:

• have a field in each @aml structure, that is a Dict, and can store different codes

@aml mutable struct Foo
a::Int64, "~"
b::String, "~"
code = Dict(:creator_start => :(b=a), :extractor_end => :(if a>b a = b else b = a end))
end

• have extra macros in each @aml

@aml mutable struct Foo
a::Int64, "~"
b::String, "~"
@aml_creator_start b = a
end

[aminya]

Using macro is a better solution because it gives us the ability to put the macro between the fields, and insert the code even in between the XML/HTML operations.

@aml mutable struct Foo
@amlcreator b = 0 # start of amlcreator
a::Int64, "~"
@amlcreator b = a * 2 # middle of amlcreator
b::String, "~"
@amlcreator b = a # end of amlcreator
end