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			54 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Plaintext
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			54 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Plaintext
		
	
	
		
			Executable File
		
	
	
	
	
| # Copyright 2012-2014 Institut National des Sciences Appliquées de Lyon (INSA-Lyon)
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| #
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| # Licensed under the Apache License, Version 2.0 (the "License");
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| # you may not use this file except in compliance with the License.
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| # You may obtain a copy of the License at
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| #
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| #     http://www.apache.org/licenses/LICENSE-2.0
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| #
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| # Unless required by applicable law or agreed to in writing, software
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| # distributed under the License is distributed on an "AS IS" BASIS,
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| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| # See the License for the specific language governing permissions and
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| # limitations under the License.
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| 
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| module samples.ContextDecorator
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| 
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| import gololang.Decorators
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| 
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| let myContext = defaultContext():
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|   count(0):
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|   define("entry", |this, args| {
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|     this: count(this: count() + 1)
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|     println("hello:" + this: count())
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|     return args
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|   }):
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|   define("exit", |this, result| {
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|     require(result >= 3, "wrong value")
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|     println("goobye")
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|     return result
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|   }):
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|   define("catcher", |this, e| {
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|     println("Caught " + e)
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|     throw e
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|   }):
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|   define("finallizer", |this| {println("do some cleanup")})
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| 
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| 
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| @withContext(myContext)
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| function foo = |a, b| {
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|   println("Hard computation")
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|   return a + b
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| }
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| 
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| function main = |args| {
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|   println(foo(1,2))
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|   println("====")
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|   println(withContext(myContext)(|a| -> 2*a)(3))
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|   println("====")
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|   try {
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|     println(foo(1, 1))
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|   } catch (e) { }
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| }
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| 
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