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43 lines
1.3 KiB
43 lines
1.3 KiB
/*:nodoc:* |
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* class ActionStoreConstant |
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* |
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* This action stores the value specified by the const keyword argument. |
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* (Note that the const keyword argument defaults to the rather unhelpful null.) |
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* The 'store_const' action is most commonly used with optional |
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* arguments that specify some sort of flag. |
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* |
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* This class inherited from [[Action]] |
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**/ |
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'use strict'; |
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var util = require('util'); |
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var Action = require('../../action'); |
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/*:nodoc:* |
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* new ActionStoreConstant(options) |
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* - options (object): options hash see [[Action.new]] |
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* |
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**/ |
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var ActionStoreConstant = module.exports = function ActionStoreConstant(options) { |
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options = options || {}; |
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options.nargs = 0; |
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if (typeof options.constant === 'undefined') { |
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throw new Error('constant option is required for storeAction'); |
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} |
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Action.call(this, options); |
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}; |
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util.inherits(ActionStoreConstant, Action); |
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/*:nodoc:* |
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* ActionStoreConstant#call(parser, namespace, values, optionString) -> Void |
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* - parser (ArgumentParser): current parser |
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* - namespace (Namespace): namespace for output data |
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* - values (Array): parsed values |
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* - optionString (Array): input option string(not parsed) |
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* |
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* Call the action. Save result in namespace object |
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**/ |
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ActionStoreConstant.prototype.call = function (parser, namespace) { |
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namespace.set(this.dest, this.constant); |
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};
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