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