--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org )
+#
+# Copyright 2014 Johan Kayser <kayser.johan@gmail.com>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Example of a currency converter using PNaCl with Nit
+#
+# First imports the pnacl module
+# Then redefines the 'handle_dictionary' method
+# Creates a converter and initializes it
+# Finally checks for dictionaries
+
+import pnacl
+
+class Converter
+ super PnaclApp
+
+ # We have to redefine the method to do what we want when receiving a dictionary from JS
+ redef fun handle_dictionary(dictionary: PepperDictionary)
+ do
+ # Getting values from the dictionary
+ var from = dictionary["from"]
+ var to = dictionary["to"]
+ var value = dictionary["value"]
+
+ # If conversion to the same currency return the same value
+ if from isa String and to isa String then
+ if from == "EUR" and to == "EUR" then
+ if value isa String then
+ var rez = value.to_f
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ end
+ # If conversion to the same currency return the same value
+ if from isa String and to isa String then
+ if from == "CAD" and to == "CAD" then
+ if value isa String then
+ var rez = value.to_f
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ end
+ # If conversion to the same currency return the same value
+ if from isa String and to isa String then
+ if from == "USD" and to == "USD" then
+ if value isa String then
+ var rez = value.to_f
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ end
+ # Converts EUR to CAD
+ if from == "EUR" and to == "CAD" then
+ if value isa String then
+ var rez = (value.to_f * 1.52) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts EUR to USD
+ if from == "EUR" and to == "USD" then
+ if value isa String then
+ var rez = (value.to_f * 1.38640) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts CAD to EUR
+ if from == "CAD" and to == "EUR" then
+ if value isa String then
+ var rez = (value.to_f * 0.65840) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts CAD to USD
+ if from == "CAD" and to == "USD" then
+ if value isa String then
+ var rez = (value.to_f * 0.91240) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts USD to EUR
+ if from == "USD" and to == "EUR" then
+ if value isa String then
+ var rez = (value.to_f * 0.721) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts USD to CAD
+ if from == "USD" and to == "CAD" then
+ if value isa String then
+ var rez = (value.to_f * 1.095) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ end
+end
+
+redef fun app do return once new Converter
+app.initialize # Needed to correctly set up Nit control over the Pepper API
+app.run # Launches an infinite loop in order to check for dictionaries
nitlanguage / nit.git / blobdiff