/
jrclj.rb
54 lines (45 loc) · 1.11 KB
/
jrclj.rb
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require 'java'
java_import "clojure.lang.RT"
class JRClj
def initialize *pkgs
@mappings = {}
@ns_map = RT.var "clojure.core", "ns-map"
@symbol = RT.var "clojure.core", "symbol"
@require = RT.var "clojure.core", "require"
_import "clojure.core"
pkgs.each do |pkg|
_import pkg
end
end
def _import pkg_name, sym=nil, sym_alias=nil
@require.invoke @symbol.invoke(pkg_name)
if sym
sym_alias ||= sym
@mappings[sym_alias] = RT.var pkg_name, sym
return
end
pkg = @symbol.invoke pkg_name
@ns_map.invoke(pkg).each do |sym,var|
@mappings[sym.to_s] = var
end
end
def _eval s
self.eval self.read_string(s)
end
def _invoke m, *args
fun = @mappings[m.to_s] || @mappings[m.to_s.gsub "_", "-"]
unless fun
raise "Error, no current binding for symbol=#{m}"
end
fun.invoke(*args)
end
def _alias new, old
@mappings[new] = @mappings[old]
end
def method_missing symbol, *args
_invoke symbol, *args
end
def self.persistent_map entries=[]
Java::ClojureLang::PersistentArrayMap.new entries.to_java
end
end