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gridpilot.gg/apps/website/eslint-rules/view-model-builder-implements.js
2026-01-22 18:46:51 +01:00

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2.9 KiB
JavaScript

/**
* ESLint rule to enforce View Model Builder contract implementation
*
* View Model Builders in lib/builders/view-models/ must:
* 1. Be classes named *ViewModelBuilder
* 2. Implement the ViewModelBuilder<TInput, TOutput> interface
* 3. Have a static build() method
*/
module.exports = {
meta: {
type: 'problem',
docs: {
description: 'Enforce View Model Builder contract implementation',
category: 'Builders',
recommended: true,
},
fixable: null,
schema: [],
messages: {
notAClass: 'View Model Builders must be classes named *ViewModelBuilder',
missingImplements: 'View Model Builders must implement ViewModelBuilder<TInput, TOutput> interface',
missingBuildMethod: 'View Model Builders must have a static build() method',
},
},
create(context) {
const filename = context.getFilename();
const isInViewModelBuilders = filename.includes('/lib/builders/view-models/');
if (!isInViewModelBuilders) return {};
let hasImplements = false;
let hasBuildMethod = false;
return {
// Check class declaration
ClassDeclaration(node) {
const className = node.id?.name;
if (!className || !className.endsWith('ViewModelBuilder')) {
context.report({
node,
messageId: 'notAClass',
});
}
// Check if class implements ViewModelBuilder interface
if (node.implements && node.implements.length > 0) {
for (const impl of node.implements) {
// Handle GenericTypeAnnotation for ViewModelBuilder<TInput, TOutput>
if (impl.expression.type === 'TSInstantiationExpression') {
const expr = impl.expression.expression;
if (expr.type === 'Identifier' && expr.name === 'ViewModelBuilder') {
hasImplements = true;
}
} else if (impl.expression.type === 'Identifier') {
// Handle simple ViewModelBuilder (without generics)
if (impl.expression.name === 'ViewModelBuilder') {
hasImplements = true;
}
}
}
}
// Check for static build method
const buildMethod = node.body.body.find(member =>
member.type === 'MethodDefinition' &&
member.key.type === 'Identifier' &&
member.key.name === 'build' &&
member.static === true
);
if (buildMethod) {
hasBuildMethod = true;
}
},
'Program:exit'() {
if (!hasImplements) {
context.report({
node: context.getSourceCode().ast,
messageId: 'missingImplements',
});
}
if (!hasBuildMethod) {
context.report({
node: context.getSourceCode().ast,
messageId: 'missingBuildMethod',
});
}
},
};
},
};