Use macro to reduce duplicate code.

Project.toml

@@ -2,10 +2,10 @@ name = "Currencies"
 uuid = "0fd90b74-7c1f-579e-9252-02cd883047b9"
 license = "MIT"
 authors = ["Eric Forgy <[email protected]>", "ScottPJones <[email protected]>"]
-version = "0.18.1"
+version = "0.18.2"
 
-[deps]
-Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
+[compat]
+julia = "1"
 
 [extras]
 JSON3 = "0f8b85d8-7281-11e9-16c2-39a750bddbf1"
@@ -14,6 +14,3 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 [targets]
 build = ["JSON3"]
 test = ["Test"]
-
-[compat]
-julia = "1"

deps/build.jl

@@ -3,9 +3,6 @@ const outputname = joinpath(@__DIR__, "currency-data.jl")
 # First, check if currency-data.jl already exists
 isfile(outputname) && exit()
 
-# Make sure JSON3 is available
-using Pkg
-Pkg.add("JSON3")
 using JSON3
 
 const src = "https://pkgstore.datahub.io/core/country-codes/country-codes_json/data/471a2e653140ecdd7243cdcacfd66608/country-codes_json.json"

src/Currencies.jl

@@ -47,23 +47,17 @@ currency(::Type{C}) where {C<:Currency} = C
 "Returns the ISO 4217 minor unit associated with a currency"
 function unit end
 
-unit(S::Symbol) = _currency_data[S][2]
-
-unit(::Type{Currency{S}}) where {S} = unit(S)
-
 "Returns the ISO 4217 code associated with a currency"
 function code end
 
-code(S::Symbol) = _currency_data[S][3]
-
-code(::Type{Currency{S}}) where {S} = code(S)
-
 "Returns the ISO 4217 name associated with a currency"
 function name end
 
-name(S::Symbol) = _currency_data[S][4]
-
-name(::Type{Currency{S}}) where {S} = name(S)
+ms = [:unit, :code, :name]
+for (i,m) in enumerate(ms)
+    @eval $m(S::Symbol) = _currency_data[S][$(i+1)]
+    @eval $m(::Type{Currency{S}}) where {S} = $m(S)
+end
 
 "Returns all currency symbols"
 allsymbols()  = keys(_currency_data)