62 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
var configuration = require('../../configuration');
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var InvalidPropertyError = require('../../invalid-property-error');
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function populateComponents(properties, validator, warnings) {
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  var component;
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  var j, m;
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  for (var i = properties.length - 1; i >= 0; i--) {
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    var property = properties[i];
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    var descriptor = configuration[property.name];
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    if (!property.dynamic && descriptor && descriptor.shorthand) {
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      if (onlyValueIsVariable(property, validator) || moreThanOneValueIsVariable(property, validator)) {
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        property.optimizable = false;
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        continue;
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      }
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      property.shorthand = true;
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      property.dirty = true;
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      try {
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        property.components = descriptor.breakUp(property, configuration, validator);
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        if (descriptor.shorthandComponents) {
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          for (j = 0, m = property.components.length; j < m; j++) {
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            component = property.components[j];
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            component.components = configuration[component.name].breakUp(component, configuration, validator);
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          }
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        }
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      } catch (e) {
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        if (e instanceof InvalidPropertyError) {
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          property.components = []; // this will set property.unused to true below
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          warnings.push(e.message);
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        } else {
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          throw e;
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        }
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      }
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      if (property.components.length > 0) {
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        property.multiplex = property.components[0].multiplex;
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      } else {
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        property.unused = true;
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      }
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    }
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  }
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}
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function onlyValueIsVariable(property, validator) {
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  return property.value.length == 1 && validator.isVariable(property.value[0][1]);
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}
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function moreThanOneValueIsVariable(property, validator) {
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  return property.value.length > 1
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    && property.value.filter(
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      function(value) {
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        return validator.isVariable(value[1]);
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      }
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    ).length > 1;
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}
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module.exports = populateComponents;
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