├── .gitignore ├── LICENSE ├── README.md ├── boot.properties ├── build.boot ├── src └── org │ └── martinklepsch │ ├── cc_set.cljc │ └── cc_set │ ├── impl.clj │ └── impl.cljs └── test └── org └── martinklepsch └── cc_set_test.cljc /.gitignore: -------------------------------------------------------------------------------- 1 | .nrepl* 2 | target/ -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Mozilla Public License Version 2.0 2 | ================================== 3 | 4 | 1. Definitions 5 | -------------- 6 | 7 | 1.1. "Contributor" 8 | means each individual or legal entity that creates, contributes to 9 | the creation of, or owns Covered Software. 10 | 11 | 1.2. "Contributor Version" 12 | means the combination of the Contributions of others (if any) used 13 | by a Contributor and that particular Contributor's Contribution. 14 | 15 | 1.3. "Contribution" 16 | means Covered Software of a particular Contributor. 17 | 18 | 1.4. "Covered Software" 19 | means Source Code Form to which the initial Contributor has attached 20 | the notice in Exhibit A, the Executable Form of such Source Code 21 | Form, and Modifications of such Source Code Form, in each case 22 | including portions thereof. 23 | 24 | 1.5. "Incompatible With Secondary Licenses" 25 | means 26 | 27 | (a) that the initial Contributor has attached the notice described 28 | in Exhibit B to the Covered Software; or 29 | 30 | (b) that the Covered Software was made available under the terms of 31 | version 1.1 or earlier of the License, but not also under the 32 | terms of a Secondary License. 33 | 34 | 1.6. "Executable Form" 35 | means any form of the work other than Source Code Form. 36 | 37 | 1.7. "Larger Work" 38 | means a work that combines Covered Software with other material, in 39 | a separate file or files, that is not Covered Software. 40 | 41 | 1.8. "License" 42 | means this document. 43 | 44 | 1.9. "Licensable" 45 | means having the right to grant, to the maximum extent possible, 46 | whether at the time of the initial grant or subsequently, any and 47 | all of the rights conveyed by this License. 48 | 49 | 1.10. "Modifications" 50 | means any of the following: 51 | 52 | (a) any file in Source Code Form that results from an addition to, 53 | deletion from, or modification of the contents of Covered 54 | Software; or 55 | 56 | (b) any new file in Source Code Form that contains any Covered 57 | Software. 58 | 59 | 1.11. "Patent Claims" of a Contributor 60 | means any patent claim(s), including without limitation, method, 61 | process, and apparatus claims, in any patent Licensable by such 62 | Contributor that would be infringed, but for the grant of the 63 | License, by the making, using, selling, offering for sale, having 64 | made, import, or transfer of either its Contributions or its 65 | Contributor Version. 66 | 67 | 1.12. "Secondary License" 68 | means either the GNU General Public License, Version 2.0, the GNU 69 | Lesser General Public License, Version 2.1, the GNU Affero General 70 | Public License, Version 3.0, or any later versions of those 71 | licenses. 72 | 73 | 1.13. "Source Code Form" 74 | means the form of the work preferred for making modifications. 75 | 76 | 1.14. "You" (or "Your") 77 | means an individual or a legal entity exercising rights under this 78 | License. For legal entities, "You" includes any entity that 79 | controls, is controlled by, or is under common control with You. For 80 | purposes of this definition, "control" means (a) the power, direct 81 | or indirect, to cause the direction or management of such entity, 82 | whether by contract or otherwise, or (b) ownership of more than 83 | fifty percent (50%) of the outstanding shares or beneficial 84 | ownership of such entity. 85 | 86 | 2. License Grants and Conditions 87 | -------------------------------- 88 | 89 | 2.1. Grants 90 | 91 | Each Contributor hereby grants You a world-wide, royalty-free, 92 | non-exclusive license: 93 | 94 | (a) under intellectual property rights (other than patent or trademark) 95 | Licensable by such Contributor to use, reproduce, make available, 96 | modify, display, perform, distribute, and otherwise exploit its 97 | Contributions, either on an unmodified basis, with Modifications, or 98 | as part of a Larger Work; and 99 | 100 | (b) under Patent Claims of such Contributor to make, use, sell, offer 101 | for sale, have made, import, and otherwise transfer either its 102 | Contributions or its Contributor Version. 103 | 104 | 2.2. Effective Date 105 | 106 | The licenses granted in Section 2.1 with respect to any Contribution 107 | become effective for each Contribution on the date the Contributor first 108 | distributes such Contribution. 109 | 110 | 2.3. Limitations on Grant Scope 111 | 112 | The licenses granted in this Section 2 are the only rights granted under 113 | this License. No additional rights or licenses will be implied from the 114 | distribution or licensing of Covered Software under this License. 115 | Notwithstanding Section 2.1(b) above, no patent license is granted by a 116 | Contributor: 117 | 118 | (a) for any code that a Contributor has removed from Covered Software; 119 | or 120 | 121 | (b) for infringements caused by: (i) Your and any other third party's 122 | modifications of Covered Software, or (ii) the combination of its 123 | Contributions with other software (except as part of its Contributor 124 | Version); or 125 | 126 | (c) under Patent Claims infringed by Covered Software in the absence of 127 | its Contributions. 128 | 129 | This License does not grant any rights in the trademarks, service marks, 130 | or logos of any Contributor (except as may be necessary to comply with 131 | the notice requirements in Section 3.4). 132 | 133 | 2.4. Subsequent Licenses 134 | 135 | No Contributor makes additional grants as a result of Your choice to 136 | distribute the Covered Software under a subsequent version of this 137 | License (see Section 10.2) or under the terms of a Secondary License (if 138 | permitted under the terms of Section 3.3). 139 | 140 | 2.5. Representation 141 | 142 | Each Contributor represents that the Contributor believes its 143 | Contributions are its original creation(s) or it has sufficient rights 144 | to grant the rights to its Contributions conveyed by this License. 145 | 146 | 2.6. Fair Use 147 | 148 | This License is not intended to limit any rights You have under 149 | applicable copyright doctrines of fair use, fair dealing, or other 150 | equivalents. 151 | 152 | 2.7. Conditions 153 | 154 | Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted 155 | in Section 2.1. 156 | 157 | 3. Responsibilities 158 | ------------------- 159 | 160 | 3.1. Distribution of Source Form 161 | 162 | All distribution of Covered Software in Source Code Form, including any 163 | Modifications that You create or to which You contribute, must be under 164 | the terms of this License. You must inform recipients that the Source 165 | Code Form of the Covered Software is governed by the terms of this 166 | License, and how they can obtain a copy of this License. You may not 167 | attempt to alter or restrict the recipients' rights in the Source Code 168 | Form. 169 | 170 | 3.2. Distribution of Executable Form 171 | 172 | If You distribute Covered Software in Executable Form then: 173 | 174 | (a) such Covered Software must also be made available in Source Code 175 | Form, as described in Section 3.1, and You must inform recipients of 176 | the Executable Form how they can obtain a copy of such Source Code 177 | Form by reasonable means in a timely manner, at a charge no more 178 | than the cost of distribution to the recipient; and 179 | 180 | (b) You may distribute such Executable Form under the terms of this 181 | License, or sublicense it under different terms, provided that the 182 | license for the Executable Form does not attempt to limit or alter 183 | the recipients' rights in the Source Code Form under this License. 184 | 185 | 3.3. Distribution of a Larger Work 186 | 187 | You may create and distribute a Larger Work under terms of Your choice, 188 | provided that You also comply with the requirements of this License for 189 | the Covered Software. If the Larger Work is a combination of Covered 190 | Software with a work governed by one or more Secondary Licenses, and the 191 | Covered Software is not Incompatible With Secondary Licenses, this 192 | License permits You to additionally distribute such Covered Software 193 | under the terms of such Secondary License(s), so that the recipient of 194 | the Larger Work may, at their option, further distribute the Covered 195 | Software under the terms of either this License or such Secondary 196 | License(s). 197 | 198 | 3.4. Notices 199 | 200 | You may not remove or alter the substance of any license notices 201 | (including copyright notices, patent notices, disclaimers of warranty, 202 | or limitations of liability) contained within the Source Code Form of 203 | the Covered Software, except that You may alter any license notices to 204 | the extent required to remedy known factual inaccuracies. 205 | 206 | 3.5. Application of Additional Terms 207 | 208 | You may choose to offer, and to charge a fee for, warranty, support, 209 | indemnity or liability obligations to one or more recipients of Covered 210 | Software. However, You may do so only on Your own behalf, and not on 211 | behalf of any Contributor. You must make it absolutely clear that any 212 | such warranty, support, indemnity, or liability obligation is offered by 213 | You alone, and You hereby agree to indemnify every Contributor for any 214 | liability incurred by such Contributor as a result of warranty, support, 215 | indemnity or liability terms You offer. You may include additional 216 | disclaimers of warranty and limitations of liability specific to any 217 | jurisdiction. 218 | 219 | 4. Inability to Comply Due to Statute or Regulation 220 | --------------------------------------------------- 221 | 222 | If it is impossible for You to comply with any of the terms of this 223 | License with respect to some or all of the Covered Software due to 224 | statute, judicial order, or regulation then You must: (a) comply with 225 | the terms of this License to the maximum extent possible; and (b) 226 | describe the limitations and the code they affect. Such description must 227 | be placed in a text file included with all distributions of the Covered 228 | Software under this License. Except to the extent prohibited by statute 229 | or regulation, such description must be sufficiently detailed for a 230 | recipient of ordinary skill to be able to understand it. 231 | 232 | 5. Termination 233 | -------------- 234 | 235 | 5.1. The rights granted under this License will terminate automatically 236 | if You fail to comply with any of its terms. However, if You become 237 | compliant, then the rights granted under this License from a particular 238 | Contributor are reinstated (a) provisionally, unless and until such 239 | Contributor explicitly and finally terminates Your grants, and (b) on an 240 | ongoing basis, if such Contributor fails to notify You of the 241 | non-compliance by some reasonable means prior to 60 days after You have 242 | come back into compliance. Moreover, Your grants from a particular 243 | Contributor are reinstated on an ongoing basis if such Contributor 244 | notifies You of the non-compliance by some reasonable means, this is the 245 | first time You have received notice of non-compliance with this License 246 | from such Contributor, and You become compliant prior to 30 days after 247 | Your receipt of the notice. 248 | 249 | 5.2. If You initiate litigation against any entity by asserting a patent 250 | infringement claim (excluding declaratory judgment actions, 251 | counter-claims, and cross-claims) alleging that a Contributor Version 252 | directly or indirectly infringes any patent, then the rights granted to 253 | You by any and all Contributors for the Covered Software under Section 254 | 2.1 of this License shall terminate. 255 | 256 | 5.3. In the event of termination under Sections 5.1 or 5.2 above, all 257 | end user license agreements (excluding distributors and resellers) which 258 | have been validly granted by You or Your distributors under this License 259 | prior to termination shall survive termination. 260 | 261 | ************************************************************************ 262 | * * 263 | * 6. Disclaimer of Warranty * 264 | * ------------------------- * 265 | * * 266 | * Covered Software is provided under this License on an "as is" * 267 | * basis, without warranty of any kind, either expressed, implied, or * 268 | * statutory, including, without limitation, warranties that the * 269 | * Covered Software is free of defects, merchantable, fit for a * 270 | * particular purpose or non-infringing. The entire risk as to the * 271 | * quality and performance of the Covered Software is with You. * 272 | * Should any Covered Software prove defective in any respect, You * 273 | * (not any Contributor) assume the cost of any necessary servicing, * 274 | * repair, or correction. This disclaimer of warranty constitutes an * 275 | * essential part of this License. No use of any Covered Software is * 276 | * authorized under this License except under this disclaimer. * 277 | * * 278 | ************************************************************************ 279 | 280 | ************************************************************************ 281 | * * 282 | * 7. Limitation of Liability * 283 | * -------------------------- * 284 | * * 285 | * Under no circumstances and under no legal theory, whether tort * 286 | * (including negligence), contract, or otherwise, shall any * 287 | * Contributor, or anyone who distributes Covered Software as * 288 | * permitted above, be liable to You for any direct, indirect, * 289 | * special, incidental, or consequential damages of any character * 290 | * including, without limitation, damages for lost profits, loss of * 291 | * goodwill, work stoppage, computer failure or malfunction, or any * 292 | * and all other commercial damages or losses, even if such party * 293 | * shall have been informed of the possibility of such damages. This * 294 | * limitation of liability shall not apply to liability for death or * 295 | * personal injury resulting from such party's negligence to the * 296 | * extent applicable law prohibits such limitation. Some * 297 | * jurisdictions do not allow the exclusion or limitation of * 298 | * incidental or consequential damages, so this exclusion and * 299 | * limitation may not apply to You. * 300 | * * 301 | ************************************************************************ 302 | 303 | 8. Litigation 304 | ------------- 305 | 306 | Any litigation relating to this License may be brought only in the 307 | courts of a jurisdiction where the defendant maintains its principal 308 | place of business and such litigation shall be governed by laws of that 309 | jurisdiction, without reference to its conflict-of-law provisions. 310 | Nothing in this Section shall prevent a party's ability to bring 311 | cross-claims or counter-claims. 312 | 313 | 9. Miscellaneous 314 | ---------------- 315 | 316 | This License represents the complete agreement concerning the subject 317 | matter hereof. If any provision of this License is held to be 318 | unenforceable, such provision shall be reformed only to the extent 319 | necessary to make it enforceable. Any law or regulation which provides 320 | that the language of a contract shall be construed against the drafter 321 | shall not be used to construe this License against a Contributor. 322 | 323 | 10. Versions of the License 324 | --------------------------- 325 | 326 | 10.1. New Versions 327 | 328 | Mozilla Foundation is the license steward. Except as provided in Section 329 | 10.3, no one other than the license steward has the right to modify or 330 | publish new versions of this License. Each version will be given a 331 | distinguishing version number. 332 | 333 | 10.2. Effect of New Versions 334 | 335 | You may distribute the Covered Software under the terms of the version 336 | of the License under which You originally received the Covered Software, 337 | or under the terms of any subsequent version published by the license 338 | steward. 339 | 340 | 10.3. Modified Versions 341 | 342 | If you create software not governed by this License, and you want to 343 | create a new license for such software, you may create and use a 344 | modified version of this License if you rename the license and remove 345 | any references to the name of the license steward (except to note that 346 | such modified license differs from this License). 347 | 348 | 10.4. Distributing Source Code Form that is Incompatible With Secondary 349 | Licenses 350 | 351 | If You choose to distribute Source Code Form that is Incompatible With 352 | Secondary Licenses under the terms of this version of the License, the 353 | notice described in Exhibit B of this License must be attached. 354 | 355 | Exhibit A - Source Code Form License Notice 356 | ------------------------------------------- 357 | 358 | This Source Code Form is subject to the terms of the Mozilla Public 359 | License, v. 2.0. If a copy of the MPL was not distributed with this 360 | file, You can obtain one at http://mozilla.org/MPL/2.0/. 361 | 362 | If it is not possible or desirable to put the notice in a particular 363 | file, then You may include the notice in a location (such as a LICENSE 364 | file in a relevant directory) where a recipient would be likely to look 365 | for such a notice. 366 | 367 | You may add additional accurate notices of copyright ownership. 368 | 369 | Exhibit B - "Incompatible With Secondary Licenses" Notice 370 | --------------------------------------------------------- 371 | 372 | This Source Code Form is "Incompatible With Secondary Licenses", as 373 | defined by the Mozilla Public License, v. 2.0. -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Custom Comparator Sets in Clojure 2 | 3 | **Alpha** A custom Clojure/Script type for custom comparator sets. 4 | 5 | [](dependency) 6 | ```clojure 7 | [org.martinklepsch/cc-set "0.1.2"] ;; latest release 8 | ``` 9 | [](/dependency) 10 | 11 | ### Rationale 12 | 13 | When dealing with domain data in maps this data often has unique 14 | identifiers. To make merging easy and guarantee that there are no two 15 | items with the same identifier people often store those models in maps 16 | of the following format: 17 | 18 | ```clojure 19 | {(:id model) model 20 | ,,,} 21 | ``` 22 | 23 | While this certainly is a solution it complicates the handling of the 24 | data in every place imaginable. Often you just want `(vals my-models)` 25 | instead of the actual map. Adding new items requires code that is 26 | tightly coupled to the underlying map that you only chose to guarantee 27 | uniqueness of a certain property (`(assoc my-models (:id model) 28 | model)`). 29 | 30 | ### Custom Sets 31 | 32 | This library provides a custom type `CustomComparatorSet` which allows 33 | users to manage data in a set-like datastructure while using a custom 34 | function as uniqueness comparator. 35 | 36 | ```clojure 37 | ;; (import [org.martinklepsch.cc_set.impl CustomComparatorSet]) ; Clojure 38 | ;; (require '[org.martinklepsch.cc-set :refer [custom-comparator-set]]) ; ClojureScript 39 | (def x (custom-comparator-set :id)) 40 | (conj x {:id 1} {:id 2}) 41 | ;; => #CustomComparatorSet{{:id 1} {:id 2}} 42 | ``` 43 | 44 | > While a keyword `:id` is used as comparator here you can also use 45 | > more complex functions. 46 | 47 | A constructor `set-by` is provided which additionally wraps the passed 48 | comparator in a nil check, throwing if `nil` is returned. 49 | 50 | ```clojure 51 | (require '[org.martinklepsch.cc-set :refer [set-by]]) 52 | (set-by :id {:id "a"} {:id "x"} {:id "b"}) 53 | ``` 54 | 55 | If you don't want the `nil` guard behavior you can implement your own constructor like this: 56 | 57 | ```clojure 58 | (defn my-set-by [comparator & keys] 59 | (reduce conj (CustomComparatorSet. {} comparator) keys))) 60 | ``` 61 | 62 | Simple! 63 | 64 | ### Low level constructors 65 | 66 | Clojure 67 | 68 | ``` 69 | (import [org.martinklepsch.cc_set.impl CustomComparatorSet]) 70 | (CustomComparatorSet. {} :id) 71 | ``` 72 | 73 | ClojureScript 74 | 75 | ``` 76 | (require '[org.martinklepsch.cc-set.impl :refer [CustomComparatorSet]]) 77 | (CustomComparatorSet. nil {} :id) 78 | ``` 79 | **Notice the different arity, resulting of the differences in how 80 | Clojure and ClojureScript handle metadata.** 81 | 82 | #### Differences to regular sets 83 | 84 | **get** 85 | 86 | _Regular set_: `(get regular-set v)` looks for entries where `v == entry` 87 | 88 | _Custom-comparator set_: `(get ccset v)` look for entries where `(comparator v) == (comparator entry)` 89 | 90 | **conj** 91 | 92 | _Regular set_: `(conj regular-set v)` will add the value only if the set does not already contain it, maintaining uniqueness by value equality 93 | 94 | _Custom-comparator set_: `(conj ccset v)` will behave like `assoc` with the key `(comparator v)` and the value `v`, maintaining uniqueness by comparator. This means that values will be updated if the comparator result is equal but the value is different 95 | 96 | ### Building and Testing 97 | 98 | ```sh 99 | boot build-jar # install to ~/.m2 100 | boot testing test-cljc # run tests once 101 | boot testing watch test-cljc # run tests after changes 102 | ``` 103 | 104 | ### Contributing 105 | 106 | Feedback and PRs welcome, especially generative testing seems like a good fit. 107 | 108 | -- 109 | 110 | ### License 111 | 112 | MPLv2, see `LICENSE`. 113 | -------------------------------------------------------------------------------- /boot.properties: -------------------------------------------------------------------------------- 1 | #http://boot-clj.com 2 | #Mon Nov 09 16:34:04 CET 2015 3 | BOOT_CLOJURE_NAME=org.clojure/clojure 4 | BOOT_CLOJURE_VERSION=1.9.0-alpha13 5 | BOOT_VERSION=2.7.2 -------------------------------------------------------------------------------- /build.boot: -------------------------------------------------------------------------------- 1 | (set-env! :source-paths #{"src"} 2 | :dependencies '[[adzerk/boot-test "1.1.2" :scope "test"] 3 | [crisptrutski/boot-cljs-test "0.3.0" :scope "test"] 4 | [adzerk/bootlaces "0.1.13" :scope "test"] 5 | [collection-check "0.1.7" :scope "test"] 6 | [org.clojure/clojurescript "1.9.293" :scope "provided"] 7 | [org.clojure/test.check "0.9.0" :scope "test"] 8 | [com.gfredericks/test.chuck "0.2.2" :scope "test"]]) 9 | 10 | (require '[adzerk.boot-test :refer [test]] 11 | '[crisptrutski.boot-cljs-test :refer [test-cljs]] 12 | '[adzerk.bootlaces :as b :refer [build-jar push-release push-snapshot]]) 13 | 14 | (def +version+ "0.1.2") 15 | (b/bootlaces! +version+) 16 | 17 | (task-options! pom {:project 'org.martinklepsch/cc-set 18 | :version +version+ 19 | :description "A Clojure/Script library for custom comparator sets" 20 | :url "https://github.com/martinklepsch/custom-comparator-set" 21 | :scm {:url "https://github.com/martinklepsch/custom-comparator-set"} 22 | :license {"MPL v2" "https://www.mozilla.org/en-US/MPL/2.0/"}}) 23 | 24 | (deftask pushs 25 | "Deploy snapshot version to Clojars." 26 | [f file PATH str "The jar file to deploy."] 27 | (push :file file :ensure-snapshot true)) 28 | 29 | (deftask testing [] 30 | (merge-env! :source-paths #{"test"}) 31 | (let [nss #{'org.martinklepsch.cc-set-test}] 32 | (task-options! test {:namespaces nss} 33 | test-cljs {:namespaces nss})) 34 | identity) 35 | 36 | (deftask test-cljc [] 37 | (comp (test-cljs) (test))) 38 | -------------------------------------------------------------------------------- /src/org/martinklepsch/cc_set.cljc: -------------------------------------------------------------------------------- 1 | (ns org.martinklepsch.cc-set 2 | #?(:clj (:require [clojure.string :as string] 3 | [org.martinklepsch.cc-set.impl])) 4 | #?(:clj (:import [org.martinklepsch.cc_set.impl CustomComparatorSet])) 5 | #?(:cljs (:require [org.martinklepsch.cc-set.impl :refer [CustomComparatorSet]]))) 6 | 7 | (defn custom-comparator-set 8 | "Low level constructor hiding platform differences 9 | between Clojure and ClojureScript" 10 | [comparator keys] 11 | (reduce conj 12 | #?(:clj (CustomComparatorSet. {} comparator) 13 | :cljs (CustomComparatorSet. nil {} comparator)) 14 | keys)) 15 | 16 | (defn set-by 17 | "High level constructor for custom comparator sets. 18 | Throws if comparator returns nil." 19 | [comparator keys] 20 | (let [cmp (fn [i] (if (nil? (comparator i)) 21 | (throw (ex-info "Custom set comparator returned nil" {:item i})) 22 | (comparator i)))] 23 | (custom-comparator-set cmp keys))) 24 | 25 | (comment 26 | (def x (CustomComparatorSet. {} :id)) 27 | (conj x {:id 1} {:id 2}) 28 | 29 | (set (seq x)) 30 | 31 | (contains? (CustomComparatorSet. {"a" {:thing "a"}} :thing) {:thing "a"}) 32 | (disj (CustomComparatorSet. {"a" {:thing "a"}} :thing) {:thing "a"}) 33 | 34 | (set-by :thing {:thing "a"} {:thing "x"} {:thing "b"}) 35 | 36 | ) 37 | -------------------------------------------------------------------------------- /src/org/martinklepsch/cc_set/impl.clj: -------------------------------------------------------------------------------- 1 | (ns org.martinklepsch.cc-set.impl) 2 | 3 | (deftype CustomComparatorSet [data comparator] 4 | clojure.lang.IPersistentCollection 5 | (cons [this v] (CustomComparatorSet. (assoc data (comparator v) v) comparator)) 6 | (empty [this] (CustomComparatorSet. {} comparator)) 7 | (equiv [this o] (= (set (seq this)) o)) 8 | (seq [this] (vals data)) 9 | 10 | clojure.lang.Counted 11 | (count [this] (count data)) 12 | 13 | clojure.lang.IPersistentSet 14 | (disjoin [this v] (CustomComparatorSet. (dissoc data (comparator v)) comparator)) 15 | (contains [this v] (boolean (contains? data (comparator v)))) 16 | (get [this v] (get data (comparator v))) 17 | 18 | clojure.lang.IHashEq 19 | (hasheq [this] (hash-unordered-coll (-> data vals set))) 20 | 21 | clojure.lang.IFn 22 | (invoke [this v] (get data (comparator v))) 23 | 24 | java.lang.Iterable 25 | (iterator [this] 26 | (clojure.lang.SeqIterator. (seq this))) 27 | 28 | java.util.Collection 29 | (size [this] (count data)) 30 | 31 | java.util.Set 32 | (isEmpty [this] (zero? (count this))) 33 | (toArray [this array] 34 | (.toArray ^java.util.Collection (sequence (seq data)) array)) 35 | (toArray [this] (into-array (seq this))) 36 | (containsAll [this coll] 37 | (every? #(contains? this %) coll)) 38 | 39 | Object 40 | (equals [this that] 41 | (cond (identical? this that) true 42 | (= (-> this seq set) that) true 43 | :else false)) 44 | (hashCode [this] (reduce #(+ %1 (clojure.lang.Util/hash %2)) 0 (seq this))) 45 | (toString [this] (pr-str this))) 46 | 47 | (defmethod print-method CustomComparatorSet [v ^java.io.Writer w] 48 | (.write w "#CustomComparatorSet{") 49 | (if (seq v) 50 | (loop [[x & xs] (seq v)] 51 | (print-method x w) 52 | (when (seq xs) (.write w " ") (recur xs)))) 53 | (.write w "}")) 54 | 55 | (comment 56 | (.equals (CustomComparatorSet. {"a" {:id "a"}} :id) #{}) 57 | (.hashCode (CustomComparatorSet. {} :id)) 58 | (.hashCode #{}) 59 | (hash #{}) 60 | (hash (CustomComparatorSet. {} :id)) 61 | (hash {}) 62 | 63 | (def x (CustomComparatorSet. {} :id)) 64 | 65 | (conj x {:id 1} {:id 2}) 66 | 67 | (set (seq x)) 68 | 69 | (contains? (CustomComparatorSet. {"a" {:thing "a"}} :thing) {:thing "a"}) 70 | (disj (CustomComparatorSet. {"a" {:thing "a"}} :thing) {:thing "a"}) 71 | 72 | (set-by :thing {:thing "a"} {:thing "x"} {:thing "b"}) 73 | 74 | (require 'collection-check) 75 | 76 | (collection-check/assert-set-like (set-by :x) clojure.test.check.generators/int) 77 | 78 | (.equals #{} (set-by :x)) 79 | 80 | (set-by :x) 81 | 82 | ) 83 | -------------------------------------------------------------------------------- /src/org/martinklepsch/cc_set/impl.cljs: -------------------------------------------------------------------------------- 1 | (ns org.martinklepsch.cc-set.impl 2 | (:require [clojure.string :as string])) 3 | 4 | (deftype CustomComparatorSet [meta data-map comparator] 5 | IWithMeta 6 | (-with-meta [coll meta] (CustomComparatorSet. meta data-map comparator)) 7 | 8 | IMeta 9 | (-meta [coll] meta) 10 | 11 | ICloneable 12 | (-clone [_] (CustomComparatorSet. meta data-map comparator)) 13 | 14 | IIterable 15 | (-iterator [_] (HashSetIter. (-iterator data-map))) 16 | 17 | ICollection 18 | (-conj [coll v] (CustomComparatorSet. meta (assoc data-map (comparator v) v) comparator)) 19 | 20 | IEmptyableCollection 21 | (-empty [coll] (CustomComparatorSet. meta {} comparator)) 22 | 23 | IEquiv 24 | (-equiv [coll o] (= (set (seq coll)) o)) 25 | 26 | ISeqable 27 | (-seq [_] (vals data-map)) 28 | 29 | ICounted 30 | (-count [_] (count data-map)) 31 | 32 | ISet 33 | (-disjoin [_ v] (CustomComparatorSet. meta (dissoc data-map (comparator v)) comparator)) 34 | 35 | ILookup 36 | (-lookup [coll v] (-lookup coll v nil)) 37 | (-lookup [coll v not-found] (-lookup data-map (comparator v) not-found)) 38 | 39 | IHash 40 | (-hash [coll] (hash (set (seq coll)))) 41 | 42 | IFn 43 | (-invoke [coll v] 44 | (-lookup coll v)) 45 | (-invoke [coll v not-found] 46 | (-lookup coll v not-found)) 47 | 48 | IPrintWithWriter 49 | (-pr-writer [coll writer _] 50 | (let [items (string/join " " (map pr-str (seq coll)))] 51 | (-write writer (str "#CustomComparatorSet{" items "}")))) 52 | 53 | Object 54 | (toString [coll] (pr-str coll))) 55 | -------------------------------------------------------------------------------- /test/org/martinklepsch/cc_set_test.cljc: -------------------------------------------------------------------------------- 1 | (ns org.martinklepsch.cc-set-test 2 | (:require [org.martinklepsch.cc-set :as ccset] 3 | ;; [clojure.test.check :as tc] 4 | ;; [clojure.test.check.generators :as gen] 5 | ;; [clojure.test.check.properties :as prop] 6 | [collection-check.core :as ccheck] 7 | #?(:clj [clojure.test :as t :refer [deftest]] 8 | :cljs [cljs.test :as t :refer-macros [deftest]]))) 9 | 10 | (deftest single-argument-arity 11 | (t/is (empty? (ccset/custom-comparator-set :k [])))) 12 | 13 | (deftest printing 14 | (t/is (= (pr-str (ccset/custom-comparator-set :k [])) 15 | "#CustomComparatorSet{}")) 16 | (t/is (= (-> (ccset/custom-comparator-set :k []) (conj {:k 1}) (conj {:k 2}) pr-str) 17 | "#CustomComparatorSet{{:k 1} {:k 2}}"))) 18 | 19 | (deftest equality 20 | (t/is (= (ccset/custom-comparator-set :k [{:k "a"}]) 21 | (ccset/custom-comparator-set :k [{:k "a"}]))) 22 | (t/is (= (ccset/custom-comparator-set :k [{:k "a"}]) #{{:k "a"}})) 23 | (t/is (= #{{:k "a"}} (ccset/custom-comparator-set :k [{:k "a"}]))) 24 | (t/is (not= (ccset/custom-comparator-set :k []) [])) 25 | (t/is (= (ccset/custom-comparator-set :k []) #{})) 26 | (t/is (not= (ccset/custom-comparator-set :k [{:k "a"}]) 27 | {"a" {:k "a"}}))) 28 | 29 | (deftest hashing 30 | (let [cset1 (ccset/custom-comparator-set :k [{:k "a"}]) 31 | cset2 (ccset/custom-comparator-set :k [{:k "a"}]) 32 | kmap (-> {} (assoc cset1 1) (assoc cset2 2))] 33 | (t/is (= 2 (get kmap cset1))) 34 | (t/is (= 2 (get kmap cset2))) 35 | (t/is (= 1 (count kmap))))) 36 | 37 | (deftest counting 38 | (t/is (= 0 (count (ccset/custom-comparator-set :k [])))) 39 | (t/is (= 1 (count (ccset/custom-comparator-set :k [{:k "a"} {:k "a"}])))) 40 | (t/is (= 2 (count (ccset/custom-comparator-set :k [{:k "a"} {:k "b"}]))))) 41 | 42 | (deftest emptying 43 | (t/testing "empty ccset" 44 | (t/is (= 0 (count (empty (ccset/custom-comparator-set :k [{:k "a"}]))))) 45 | (t/is (= (ccset/custom-comparator-set :k []) 46 | (empty (ccset/custom-comparator-set :k [{:k "a"}])))))) 47 | 48 | #?(:cljs 49 | (deftest cloning 50 | (t/testing "clone ccset" 51 | (t/is (= (ccset/custom-comparator-set :k [{:k "a"}]) 52 | (clone (ccset/custom-comparator-set :k [{:k "a"}]))))))) 53 | 54 | (deftest adding-values 55 | (t/testing "conj value to empty ccset" 56 | (t/is (= (ccset/custom-comparator-set :k [{:k "a"}]) 57 | (conj (ccset/custom-comparator-set :k []) {:k "a"})))) 58 | (t/testing "conj value already in ccset" 59 | (t/is (= (ccset/custom-comparator-set :k [{:k "a"}]) 60 | (conj (ccset/custom-comparator-set :k [{:k "a"}]) {:k "a"})))) 61 | (t/testing "conj updated value" 62 | (t/is (= (ccset/custom-comparator-set :k [{:k "a" :l "b"}]) 63 | (conj (ccset/custom-comparator-set :k [{:k "a"}]) {:k "a" :l "b"})))) 64 | (t/testing "conj value not yet in ccset" 65 | (t/is (= (ccset/custom-comparator-set :k [{:k "a"} {:k "b"}]) 66 | (conj (ccset/custom-comparator-set :k [{:k "a"}]) {:k "b"}))))) 67 | 68 | (deftest subtracting-values 69 | (t/testing "disj value not in ccset" 70 | (t/is (= (ccset/custom-comparator-set :k [{:k "a"}]) 71 | (disj (ccset/custom-comparator-set :k [{:k "a"}]) {:k "b"})))) 72 | (t/testing "disj value in ccset" 73 | (t/is (= (ccset/custom-comparator-set :k []) 74 | (disj (ccset/custom-comparator-set :k [{:k "a"}]) {:k "a"}))))) 75 | 76 | (deftest getting-values 77 | (t/testing "get value not in ccset" 78 | (t/is (= nil (get (ccset/custom-comparator-set :k [{:k "a"}]) {:k "b"})))) 79 | (t/testing "get value in ccset" 80 | (t/is (= {:k "b"} 81 | (-> (ccset/custom-comparator-set :k [{:k "a"} {:k "b"}]) 82 | (get {:k "b"})))))) 83 | 84 | (deftest invoke 85 | (t/testing "get value not in ccset" 86 | (t/is (= nil ((ccset/custom-comparator-set :k [{:k "a"}]) {:k "b"})))) 87 | (t/testing "get value in ccset" 88 | (t/is (= {:k "b"} 89 | ((ccset/custom-comparator-set :k [{:k "a"} {:k "b"}]) {:k "b"}))))) 90 | 91 | (deftest contains 92 | (t/testing "value not in ccset" 93 | (t/is (= false (contains? (ccset/custom-comparator-set :k [{:k "a"}]) {:k "b"})))) 94 | (t/testing "value in ccset" 95 | (t/is (= true (contains? (ccset/custom-comparator-set :k [{:k "a"}]) {:k "a"}))))) 96 | 97 | (deftest collection-check 98 | (ccheck/assert-set-like 99 | (ccset/custom-comparator-set identity []) 100 | clojure.test.check.generators/int)) 101 | --------------------------------------------------------------------------------