open-consul/ui/packages/consul-ui/lib/custom-element/index.js

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'use strict';
module.exports = {
name: require('./package').name,
getTransform: function() {
return {
name: 'custom-element',
plugin: class {
transform(ast) {
this.syntax.traverse(ast, {
ElementNode: (node) => {
if(node.tag === 'CustomElement') {
node.attributes = node.attributes
// completely remove these ones, they are not used runtime
// element is potentially only temporarily being removed
.filter(item => !['element', 'description', 'slots', 'cssparts'].includes(`${item.name.substr(1)}`))
.map(item => {
switch(true) {
// these ones are ones where we need to remove the documentation only
// the attributes themselves are required at runtime
case ['attrs', 'cssprops'].includes(`${item.name.substr(1)}`):
item.value.params = item.value.params.map(item => {
// we can't use arr.length here as we don't know
// whether someone has used the documentation entry
// in the array or not We use the hardcoded `3` for
// the moment if that position needs to change per
// property we can just add more cases for the
// moment
item.params = item.params.filter((item, i, arr) => i < 3);
return item;
});
break;
}
return item;
});
}
},
});
return ast;
}
},
baseDir: function() {
return __dirname;
},
cacheKey: function() {
return 'custom-element';
}
};
},
setupPreprocessorRegistry(type, registry) {
const transform = this.getTransform();
transform.parallelBabel = {
requireFile: __filename,
buildUsing: 'getTransform',
params: {}
};
registry.add('htmlbars-ast-plugin', transform);
},
};