Function getAttributeArgLiteral

packages/language/src/utils.ts:400–410

(
    attr: DataModelAttribute | DataFieldAttribute | InternalAttribute,
    name: string,
)

 * Gets the literal value of the argument with the given name from the given attribute. Returns `undefined` if no such argument is found or if the argument value cannot be determined or is not a literal.
 */
export function getAttributeArgLiteral<T extends string | number | boolean>(
    attr: DataModelAttribute | DataFieldAttribute | InternalAttribute,
    name: string,
): T | undefined {
    for (const arg of attr.args) {
        if (arg.$resolvedParam?.name === name) {
            return getLiteral<T>(arg.value);
        }
    }
    return undefined;
}

/**
 * Gets the allowed expression contexts for the given function declaration by looking for `@@expressionContext` attribute.