85 lines
2.3 KiB
JavaScript
85 lines
2.3 KiB
JavaScript
/**
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* ESLint rule to enforce View Model Builder contract
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*
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* View Model Builders must:
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* 1. Be classes named *ViewModelBuilder
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* 2. Have a static build() method
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* 3. Accept View Data as parameter
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* 4. Return View Model
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*/
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module.exports = {
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meta: {
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type: 'problem',
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docs: {
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description: 'Enforce View Model Builder contract',
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category: 'Builders',
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recommended: true,
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},
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fixable: null,
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schema: [],
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messages: {
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notAClass: 'View Model Builders must be classes named *ViewModelBuilder',
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missingBuildMethod: 'View Model Builders must have a static build() method',
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invalidBuildSignature: 'build() method must accept View Data and return View Model',
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},
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},
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create(context) {
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const filename = context.getFilename();
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const isInViewModelBuilders = filename.includes('/lib/builders/view-models/');
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if (!isInViewModelBuilders) return {};
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let hasBuildMethod = false;
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let hasCorrectSignature = false;
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return {
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// Check class declaration
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ClassDeclaration(node) {
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const className = node.id?.name;
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if (!className || !className.endsWith('ViewModelBuilder')) {
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context.report({
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node,
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messageId: 'notAClass',
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});
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}
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// Check for static build method
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const buildMethod = node.body.body.find(member =>
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member.type === 'MethodDefinition' &&
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member.key.type === 'Identifier' &&
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member.key.name === 'build' &&
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member.static === true
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);
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if (buildMethod) {
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hasBuildMethod = true;
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// Check signature - should have at least one parameter
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if (buildMethod.value &&
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buildMethod.value.params &&
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buildMethod.value.params.length > 0) {
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hasCorrectSignature = true;
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}
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}
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},
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'Program:exit'() {
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if (!hasBuildMethod) {
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context.report({
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node: context.getSourceCode().ast,
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messageId: 'missingBuildMethod',
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});
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} else if (!hasCorrectSignature) {
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context.report({
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node: context.getSourceCode().ast,
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messageId: 'invalidBuildSignature',
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});
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}
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},
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};
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},
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};
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