Vendor deps.
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{"files":{"Cargo.toml":"67662fc16023bcfb40700b3110af13988115301630e4740bd75e04f32eb8a5b8","LICENSE":"fab3dd6bdab226f1c08630b1dd917e11fcb4ec5e1e020e2c16f83a0a13863e85","README.md":"a9a6d9e60c9c070f260cd41fcfe3c33a7641f98168c6e6489bd1f4f429adca5c","src/error.rs":"6e71305a1d18d3fd264409f565122c73f821351c03f9689280721153d13a4a7c","src/lib.rs":"ba0f1b0002739821c64c1d42d065c0eb69debb768b0e24ab5ab38ff69c271578","src/node.rs":"3e7363b059774c16204ad13752c07afc323019d7f9543da0dd9c4a5fcc64c66e"},"package":null}
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Vendored
+28
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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
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#
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# When uploading crates to the registry Cargo will automatically
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# "normalize" Cargo.toml files for maximal compatibility
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# with all versions of Cargo and also rewrite `path` dependencies
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# to registry (e.g., crates.io) dependencies.
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#
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# If you are reading this file be aware that the original Cargo.toml
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# will likely look very different (and much more reasonable).
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# See Cargo.toml.orig for the original contents.
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[package]
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edition = "2021"
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name = "limbo_graph"
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version = "0.1.0"
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build = false
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autolib = false
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autobins = false
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autoexamples = false
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autotests = false
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autobenches = false
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readme = "README.md"
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[lib]
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name = "limbo_graph"
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path = "src/lib.rs"
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[dependencies]
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Vendored
+373
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Mozilla Public License Version 2.0
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==================================
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1. Definitions
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--------------
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1.1. "Contributor"
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means each individual or legal entity that creates, contributes to
|
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the creation of, or owns Covered Software.
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1.2. "Contributor Version"
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means the combination of the Contributions of others (if any) used
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by a Contributor and that particular Contributor's Contribution.
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1.3. "Contribution"
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means Covered Software of a particular Contributor.
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1.4. "Covered Software"
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means Source Code Form to which the initial Contributor has attached
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the notice in Exhibit A, the Executable Form of such Source Code
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Form, and Modifications of such Source Code Form, in each case
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including portions thereof.
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|
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1.5. "Incompatible With Secondary Licenses"
|
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means
|
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|
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(a) that the initial Contributor has attached the notice described
|
||||
in Exhibit B to the Covered Software; or
|
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|
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(b) that the Covered Software was made available under the terms of
|
||||
version 1.1 or earlier of the License, but not also under the
|
||||
terms of a Secondary License.
|
||||
|
||||
1.6. "Executable Form"
|
||||
means any form of the work other than Source Code Form.
|
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|
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1.7. "Larger Work"
|
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means a work that combines Covered Software with other material, in
|
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a separate file or files, that is not Covered Software.
|
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|
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1.8. "License"
|
||||
means this document.
|
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|
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1.9. "Licensable"
|
||||
means having the right to grant, to the maximum extent possible,
|
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whether at the time of the initial grant or subsequently, any and
|
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all of the rights conveyed by this License.
|
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|
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1.10. "Modifications"
|
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means any of the following:
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|
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(a) any file in Source Code Form that results from an addition to,
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deletion from, or modification of the contents of Covered
|
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Software; or
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(b) any new file in Source Code Form that contains any Covered
|
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Software.
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|
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1.11. "Patent Claims" of a Contributor
|
||||
means any patent claim(s), including without limitation, method,
|
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process, and apparatus claims, in any patent Licensable by such
|
||||
Contributor that would be infringed, but for the grant of the
|
||||
License, by the making, using, selling, offering for sale, having
|
||||
made, import, or transfer of either its Contributions or its
|
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Contributor Version.
|
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|
||||
1.12. "Secondary License"
|
||||
means either the GNU General Public License, Version 2.0, the GNU
|
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Lesser General Public License, Version 2.1, the GNU Affero General
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Public License, Version 3.0, or any later versions of those
|
||||
licenses.
|
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|
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1.13. "Source Code Form"
|
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means the form of the work preferred for making modifications.
|
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|
||||
1.14. "You" (or "Your")
|
||||
means an individual or a legal entity exercising rights under this
|
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License. For legal entities, "You" includes any entity that
|
||||
controls, is controlled by, or is under common control with You. For
|
||||
purposes of this definition, "control" means (a) the power, direct
|
||||
or indirect, to cause the direction or management of such entity,
|
||||
whether by contract or otherwise, or (b) ownership of more than
|
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fifty percent (50%) of the outstanding shares or beneficial
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ownership of such entity.
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2. License Grants and Conditions
|
||||
--------------------------------
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2.1. Grants
|
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Each Contributor hereby grants You a world-wide, royalty-free,
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non-exclusive license:
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|
||||
(a) under intellectual property rights (other than patent or trademark)
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Licensable by such Contributor to use, reproduce, make available,
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modify, display, perform, distribute, and otherwise exploit its
|
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Contributions, either on an unmodified basis, with Modifications, or
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as part of a Larger Work; and
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(b) under Patent Claims of such Contributor to make, use, sell, offer
|
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for sale, have made, import, and otherwise transfer either its
|
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Contributions or its Contributor Version.
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|
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2.2. Effective Date
|
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|
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The licenses granted in Section 2.1 with respect to any Contribution
|
||||
become effective for each Contribution on the date the Contributor first
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distributes such Contribution.
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|
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2.3. Limitations on Grant Scope
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|
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The licenses granted in this Section 2 are the only rights granted under
|
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this License. No additional rights or licenses will be implied from the
|
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distribution or licensing of Covered Software under this License.
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Notwithstanding Section 2.1(b) above, no patent license is granted by a
|
||||
Contributor:
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||||
|
||||
(a) for any code that a Contributor has removed from Covered Software;
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or
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||||
|
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(b) for infringements caused by: (i) Your and any other third party's
|
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modifications of Covered Software, or (ii) the combination of its
|
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Contributions with other software (except as part of its Contributor
|
||||
Version); or
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|
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(c) under Patent Claims infringed by Covered Software in the absence of
|
||||
its Contributions.
|
||||
|
||||
This License does not grant any rights in the trademarks, service marks,
|
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or logos of any Contributor (except as may be necessary to comply with
|
||||
the notice requirements in Section 3.4).
|
||||
|
||||
2.4. Subsequent Licenses
|
||||
|
||||
No Contributor makes additional grants as a result of Your choice to
|
||||
distribute the Covered Software under a subsequent version of this
|
||||
License (see Section 10.2) or under the terms of a Secondary License (if
|
||||
permitted under the terms of Section 3.3).
|
||||
|
||||
2.5. Representation
|
||||
|
||||
Each Contributor represents that the Contributor believes its
|
||||
Contributions are its original creation(s) or it has sufficient rights
|
||||
to grant the rights to its Contributions conveyed by this License.
|
||||
|
||||
2.6. Fair Use
|
||||
|
||||
This License is not intended to limit any rights You have under
|
||||
applicable copyright doctrines of fair use, fair dealing, or other
|
||||
equivalents.
|
||||
|
||||
2.7. Conditions
|
||||
|
||||
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
|
||||
in Section 2.1.
|
||||
|
||||
3. Responsibilities
|
||||
-------------------
|
||||
|
||||
3.1. Distribution of Source Form
|
||||
|
||||
All distribution of Covered Software in Source Code Form, including any
|
||||
Modifications that You create or to which You contribute, must be under
|
||||
the terms of this License. You must inform recipients that the Source
|
||||
Code Form of the Covered Software is governed by the terms of this
|
||||
License, and how they can obtain a copy of this License. You may not
|
||||
attempt to alter or restrict the recipients' rights in the Source Code
|
||||
Form.
|
||||
|
||||
3.2. Distribution of Executable Form
|
||||
|
||||
If You distribute Covered Software in Executable Form then:
|
||||
|
||||
(a) such Covered Software must also be made available in Source Code
|
||||
Form, as described in Section 3.1, and You must inform recipients of
|
||||
the Executable Form how they can obtain a copy of such Source Code
|
||||
Form by reasonable means in a timely manner, at a charge no more
|
||||
than the cost of distribution to the recipient; and
|
||||
|
||||
(b) You may distribute such Executable Form under the terms of this
|
||||
License, or sublicense it under different terms, provided that the
|
||||
license for the Executable Form does not attempt to limit or alter
|
||||
the recipients' rights in the Source Code Form under this License.
|
||||
|
||||
3.3. Distribution of a Larger Work
|
||||
|
||||
You may create and distribute a Larger Work under terms of Your choice,
|
||||
provided that You also comply with the requirements of this License for
|
||||
the Covered Software. If the Larger Work is a combination of Covered
|
||||
Software with a work governed by one or more Secondary Licenses, and the
|
||||
Covered Software is not Incompatible With Secondary Licenses, this
|
||||
License permits You to additionally distribute such Covered Software
|
||||
under the terms of such Secondary License(s), so that the recipient of
|
||||
the Larger Work may, at their option, further distribute the Covered
|
||||
Software under the terms of either this License or such Secondary
|
||||
License(s).
|
||||
|
||||
3.4. Notices
|
||||
|
||||
You may not remove or alter the substance of any license notices
|
||||
(including copyright notices, patent notices, disclaimers of warranty,
|
||||
or limitations of liability) contained within the Source Code Form of
|
||||
the Covered Software, except that You may alter any license notices to
|
||||
the extent required to remedy known factual inaccuracies.
|
||||
|
||||
3.5. Application of Additional Terms
|
||||
|
||||
You may choose to offer, and to charge a fee for, warranty, support,
|
||||
indemnity or liability obligations to one or more recipients of Covered
|
||||
Software. However, You may do so only on Your own behalf, and not on
|
||||
behalf of any Contributor. You must make it absolutely clear that any
|
||||
such warranty, support, indemnity, or liability obligation is offered by
|
||||
You alone, and You hereby agree to indemnify every Contributor for any
|
||||
liability incurred by such Contributor as a result of warranty, support,
|
||||
indemnity or liability terms You offer. You may include additional
|
||||
disclaimers of warranty and limitations of liability specific to any
|
||||
jurisdiction.
|
||||
|
||||
4. Inability to Comply Due to Statute or Regulation
|
||||
---------------------------------------------------
|
||||
|
||||
If it is impossible for You to comply with any of the terms of this
|
||||
License with respect to some or all of the Covered Software due to
|
||||
statute, judicial order, or regulation then You must: (a) comply with
|
||||
the terms of this License to the maximum extent possible; and (b)
|
||||
describe the limitations and the code they affect. Such description must
|
||||
be placed in a text file included with all distributions of the Covered
|
||||
Software under this License. Except to the extent prohibited by statute
|
||||
or regulation, such description must be sufficiently detailed for a
|
||||
recipient of ordinary skill to be able to understand it.
|
||||
|
||||
5. Termination
|
||||
--------------
|
||||
|
||||
5.1. The rights granted under this License will terminate automatically
|
||||
if You fail to comply with any of its terms. However, if You become
|
||||
compliant, then the rights granted under this License from a particular
|
||||
Contributor are reinstated (a) provisionally, unless and until such
|
||||
Contributor explicitly and finally terminates Your grants, and (b) on an
|
||||
ongoing basis, if such Contributor fails to notify You of the
|
||||
non-compliance by some reasonable means prior to 60 days after You have
|
||||
come back into compliance. Moreover, Your grants from a particular
|
||||
Contributor are reinstated on an ongoing basis if such Contributor
|
||||
notifies You of the non-compliance by some reasonable means, this is the
|
||||
first time You have received notice of non-compliance with this License
|
||||
from such Contributor, and You become compliant prior to 30 days after
|
||||
Your receipt of the notice.
|
||||
|
||||
5.2. If You initiate litigation against any entity by asserting a patent
|
||||
infringement claim (excluding declaratory judgment actions,
|
||||
counter-claims, and cross-claims) alleging that a Contributor Version
|
||||
directly or indirectly infringes any patent, then the rights granted to
|
||||
You by any and all Contributors for the Covered Software under Section
|
||||
2.1 of this License shall terminate.
|
||||
|
||||
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
|
||||
end user license agreements (excluding distributors and resellers) which
|
||||
have been validly granted by You or Your distributors under this License
|
||||
prior to termination shall survive termination.
|
||||
|
||||
************************************************************************
|
||||
* *
|
||||
* 6. Disclaimer of Warranty *
|
||||
* ------------------------- *
|
||||
* *
|
||||
* Covered Software is provided under this License on an "as is" *
|
||||
* basis, without warranty of any kind, either expressed, implied, or *
|
||||
* statutory, including, without limitation, warranties that the *
|
||||
* Covered Software is free of defects, merchantable, fit for a *
|
||||
* particular purpose or non-infringing. The entire risk as to the *
|
||||
* quality and performance of the Covered Software is with You. *
|
||||
* Should any Covered Software prove defective in any respect, You *
|
||||
* (not any Contributor) assume the cost of any necessary servicing, *
|
||||
* repair, or correction. This disclaimer of warranty constitutes an *
|
||||
* essential part of this License. No use of any Covered Software is *
|
||||
* authorized under this License except under this disclaimer. *
|
||||
* *
|
||||
************************************************************************
|
||||
|
||||
************************************************************************
|
||||
* *
|
||||
* 7. Limitation of Liability *
|
||||
* -------------------------- *
|
||||
* *
|
||||
* Under no circumstances and under no legal theory, whether tort *
|
||||
* (including negligence), contract, or otherwise, shall any *
|
||||
* Contributor, or anyone who distributes Covered Software as *
|
||||
* permitted above, be liable to You for any direct, indirect, *
|
||||
* special, incidental, or consequential damages of any character *
|
||||
* including, without limitation, damages for lost profits, loss of *
|
||||
* goodwill, work stoppage, computer failure or malfunction, or any *
|
||||
* and all other commercial damages or losses, even if such party *
|
||||
* shall have been informed of the possibility of such damages. This *
|
||||
* limitation of liability shall not apply to liability for death or *
|
||||
* personal injury resulting from such party's negligence to the *
|
||||
* extent applicable law prohibits such limitation. Some *
|
||||
* jurisdictions do not allow the exclusion or limitation of *
|
||||
* incidental or consequential damages, so this exclusion and *
|
||||
* limitation may not apply to You. *
|
||||
* *
|
||||
************************************************************************
|
||||
|
||||
8. Litigation
|
||||
-------------
|
||||
|
||||
Any litigation relating to this License may be brought only in the
|
||||
courts of a jurisdiction where the defendant maintains its principal
|
||||
place of business and such litigation shall be governed by laws of that
|
||||
jurisdiction, without reference to its conflict-of-law provisions.
|
||||
Nothing in this Section shall prevent a party's ability to bring
|
||||
cross-claims or counter-claims.
|
||||
|
||||
9. Miscellaneous
|
||||
----------------
|
||||
|
||||
This License represents the complete agreement concerning the subject
|
||||
matter hereof. If any provision of this License is held to be
|
||||
unenforceable, such provision shall be reformed only to the extent
|
||||
necessary to make it enforceable. Any law or regulation which provides
|
||||
that the language of a contract shall be construed against the drafter
|
||||
shall not be used to construe this License against a Contributor.
|
||||
|
||||
10. Versions of the License
|
||||
---------------------------
|
||||
|
||||
10.1. New Versions
|
||||
|
||||
Mozilla Foundation is the license steward. Except as provided in Section
|
||||
10.3, no one other than the license steward has the right to modify or
|
||||
publish new versions of this License. Each version will be given a
|
||||
distinguishing version number.
|
||||
|
||||
10.2. Effect of New Versions
|
||||
|
||||
You may distribute the Covered Software under the terms of the version
|
||||
of the License under which You originally received the Covered Software,
|
||||
or under the terms of any subsequent version published by the license
|
||||
steward.
|
||||
|
||||
10.3. Modified Versions
|
||||
|
||||
If you create software not governed by this License, and you want to
|
||||
create a new license for such software, you may create and use a
|
||||
modified version of this License if you rename the license and remove
|
||||
any references to the name of the license steward (except to note that
|
||||
such modified license differs from this License).
|
||||
|
||||
10.4. Distributing Source Code Form that is Incompatible With Secondary
|
||||
Licenses
|
||||
|
||||
If You choose to distribute Source Code Form that is Incompatible With
|
||||
Secondary Licenses under the terms of this version of the License, the
|
||||
notice described in Exhibit B of this License must be attached.
|
||||
|
||||
Exhibit A - Source Code Form License Notice
|
||||
-------------------------------------------
|
||||
|
||||
This Source Code Form is subject to the terms of the Mozilla Public
|
||||
License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
||||
|
||||
If it is not possible or desirable to put the notice in a particular
|
||||
file, then You may include the notice in a location (such as a LICENSE
|
||||
file in a relevant directory) where a recipient would be likely to look
|
||||
for such a notice.
|
||||
|
||||
You may add additional accurate notices of copyright ownership.
|
||||
|
||||
Exhibit B - "Incompatible With Secondary Licenses" Notice
|
||||
---------------------------------------------------------
|
||||
|
||||
This Source Code Form is "Incompatible With Secondary Licenses", as
|
||||
defined by the Mozilla Public License, v. 2.0.
|
||||
Vendored
+3
@@ -0,0 +1,3 @@
|
||||
# limbo_graph
|
||||
|
||||
An implementation of a directed graph in Rust.
|
||||
Vendored
+36
@@ -0,0 +1,36 @@
|
||||
//
|
||||
// Copyright 2023 James Pace
|
||||
//
|
||||
// This Source Code Form is subject to the terms of the Mozilla Public
|
||||
// License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
|
||||
//
|
||||
// This Source Code Form is "Incompatible With Secondary Licenses", as
|
||||
// defined by the Mozilla Public License, v. 2.0.
|
||||
//
|
||||
use alloc::string::{String, ToString};
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub enum Error {
|
||||
Msg(String),
|
||||
}
|
||||
|
||||
impl Error {
|
||||
pub fn from_msg(msg: &str) -> Self {
|
||||
Error::Msg(msg.to_string())
|
||||
}
|
||||
}
|
||||
|
||||
impl core::fmt::Display for Error {
|
||||
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
|
||||
match self {
|
||||
Error::Msg(msg) => {
|
||||
write!(f, "Error manipulating graph: {}", msg)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl core::error::Error for Error {}
|
||||
|
||||
pub type Result<T, E = Error> = core::result::Result<T, E>;
|
||||
Vendored
+226
@@ -0,0 +1,226 @@
|
||||
//
|
||||
// Copyright 2023 James Pace
|
||||
//
|
||||
// This Source Code Form is subject to the terms of the Mozilla Public
|
||||
// License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
|
||||
//
|
||||
// This Source Code Form is "Incompatible With Secondary Licenses", as
|
||||
// defined by the Mozilla Public License, v. 2.0.
|
||||
//
|
||||
#![no_std]
|
||||
extern crate alloc;
|
||||
mod error;
|
||||
mod node;
|
||||
|
||||
use alloc::collections::vec_deque::VecDeque;
|
||||
use alloc::vec;
|
||||
use alloc::vec::Vec;
|
||||
pub use error::*;
|
||||
pub use node::*;
|
||||
|
||||
/// A generic graph type holding values connected to other values.
|
||||
/// Values can be added to the graph, but not removed.
|
||||
#[derive(Clone)]
|
||||
pub struct Graph<NodeValueT: NodeValue> {
|
||||
nodes: Vec<Node<NodeValueT>>,
|
||||
}
|
||||
|
||||
impl<NodeValueT: NodeValue> Graph<NodeValueT> {
|
||||
/// Make a new graph with a root node with value `root`.
|
||||
pub fn new(root: NodeValueT) -> Self {
|
||||
// Make root node from its value.
|
||||
let root_node = Node::new(root, None);
|
||||
// Make graph with root_node as the one value in the vec.
|
||||
Graph {
|
||||
nodes: vec![root_node],
|
||||
}
|
||||
}
|
||||
|
||||
/// Add a child wth value `val` to the parent with Key `parent`.
|
||||
/// If the parent key is not in the graph, returns an error.
|
||||
/// Returns a result with the key of the new node or an error.
|
||||
pub fn add(&mut self, val: NodeValueT, parent: Key) -> Result<Key> {
|
||||
// Make sure parent is valid.
|
||||
if parent >= self.nodes.len() {
|
||||
return Err(Error::from_msg("Parent node not in graph."));
|
||||
}
|
||||
// Add new node to graph, get it's key.
|
||||
let new_node = Node::new(val, Some(parent));
|
||||
self.nodes.push(new_node.clone());
|
||||
let new_node_key = self.nodes.len() - 1;
|
||||
// Add it's key to parent's children.
|
||||
self.nodes[parent].add_child(new_node_key);
|
||||
Ok(new_node_key)
|
||||
}
|
||||
|
||||
/// Replace the value of `key` with value `value`.
|
||||
/// `key` must already exist in the graph, and no connections will be modified.
|
||||
pub fn replace_value_of(&mut self, key: &Key, value: NodeValueT) -> Result<()> {
|
||||
if let Some(node) = self.nodes.get_mut(*key) {
|
||||
node.set_value(value);
|
||||
return Ok(());
|
||||
}
|
||||
Err(Error::from_msg("Can't set value of invalid key."))
|
||||
}
|
||||
|
||||
/// Get the value of key `key` if the key is valid.
|
||||
pub fn value_of(&self, key: &Key) -> Result<NodeValueT> {
|
||||
if key >= &self.nodes.len() {
|
||||
return Err(Error::from_msg("Can't get value of invalid key."));
|
||||
}
|
||||
Ok(self.nodes[*key].value())
|
||||
}
|
||||
|
||||
/// Get the children (as a list of keys) of key `key` if the key is valid.
|
||||
pub fn children_of(&self, key: &Key) -> Result<Vec<Key>> {
|
||||
if key >= &self.nodes.len() {
|
||||
return Err(Error::from_msg("Can't get children of invalid key."));
|
||||
}
|
||||
Ok(self.nodes[*key].children())
|
||||
}
|
||||
|
||||
/// Get the parent of key `key` if the key is valid.
|
||||
/// Will return None if the node at `key` as no parent (i.e. is the root node).
|
||||
pub fn parent_of(&self, key: &Key) -> Result<Option<Key>> {
|
||||
if key >= &self.nodes.len() {
|
||||
return Err(Error::from_msg("Can't get parent of invalid key."));
|
||||
}
|
||||
Ok(self.nodes[*key].parent())
|
||||
}
|
||||
|
||||
/// Get the key for the root of the graph.
|
||||
pub fn root_key(&self) -> Key {
|
||||
// This is always 0.
|
||||
0
|
||||
}
|
||||
|
||||
/// Find all nodes that are leaf nodes.
|
||||
/// A leaf node is one that doesn't have any children.
|
||||
pub fn find_leaf_keys(&self) -> Result<Vec<Key>> {
|
||||
let mut leaf_keys = Vec::<Key>::new();
|
||||
|
||||
for key in 0..self.nodes.len() {
|
||||
let children_of_node = self.children_of(&key)?;
|
||||
if children_of_node.len() == 0 {
|
||||
leaf_keys.push(key);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(leaf_keys)
|
||||
}
|
||||
|
||||
/// Return all keys ordered like you were doing
|
||||
/// a depth first search.
|
||||
pub fn get_keys_by_depth(&self) -> Result<Vec<Key>> {
|
||||
let mut visited_keys = Vec::<Key>::new();
|
||||
let mut stack = Vec::<Key>::new();
|
||||
|
||||
stack.push(self.root_key());
|
||||
|
||||
while stack.len() > 0 {
|
||||
let next_key = stack.pop().unwrap();
|
||||
if !visited_keys.contains(&next_key) {
|
||||
visited_keys.push(next_key);
|
||||
let children_of_next_key = self.children_of(&next_key)?;
|
||||
stack.extend(children_of_next_key);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(visited_keys)
|
||||
}
|
||||
|
||||
/// Given a key, return the vec of keys connecting that key to the root.
|
||||
/// Order is root->key inclusive.
|
||||
pub fn backtrack_from_key(&self, key: &Key) -> Result<Vec<Key>> {
|
||||
let mut curr_key = key.clone();
|
||||
let mut deque = VecDeque::<Key>::new();
|
||||
deque.push_front(curr_key.clone());
|
||||
|
||||
while curr_key != self.root_key() {
|
||||
let new_parent = self.parent_of(&curr_key)?.unwrap();
|
||||
deque.push_front(new_parent.clone());
|
||||
curr_key = new_parent;
|
||||
}
|
||||
|
||||
Ok(Vec::from(deque))
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use core::cmp::PartialEq;
|
||||
|
||||
#[derive(Debug, Clone, PartialEq)]
|
||||
struct NodeType {
|
||||
pub x: f64,
|
||||
}
|
||||
impl NodeValue for NodeType {}
|
||||
impl NodeType {
|
||||
fn new(val: f64) -> Self {
|
||||
NodeType { x: val }
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn node_manipulation() {
|
||||
let mut node = Node::new(NodeType::new(1.0), None);
|
||||
assert!(node.parent().is_none());
|
||||
assert!(node.value() == NodeType::new(1.0));
|
||||
let child_key: Key = 1;
|
||||
node.add_child(child_key.clone());
|
||||
assert!(node.children().len() == 1);
|
||||
assert!(node.children()[0] == child_key);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn graph_manipulation() {
|
||||
let root_val = NodeType::new(1.0);
|
||||
let mut graph = Graph::new(root_val);
|
||||
|
||||
let second_val = NodeType::new(2.0);
|
||||
let second_add_res = graph.add(second_val, 0);
|
||||
assert!(second_add_res.is_ok());
|
||||
assert!(second_add_res.unwrap() == 1);
|
||||
|
||||
assert!(graph.value_of(&1).unwrap() == NodeType::new(2.0));
|
||||
assert!(graph.parent_of(&1).unwrap() == Some(0));
|
||||
assert!(graph.children_of(&1).unwrap().len() == 0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn graph_search() {
|
||||
// Build the graph.
|
||||
let root_val = NodeType::new(1.0);
|
||||
let mut graph = Graph::new(root_val);
|
||||
|
||||
let second_val = NodeType::new(2.0);
|
||||
let second_add_res = graph.add(second_val, 0);
|
||||
assert!(second_add_res.is_ok());
|
||||
|
||||
let third_val = NodeType::new(3.0);
|
||||
let third_add_res = graph.add(third_val, 0);
|
||||
assert!(third_add_res.is_ok());
|
||||
|
||||
let fourth_val = NodeType::new(4.0);
|
||||
let fourth_add_res = graph.add(fourth_val, 1);
|
||||
assert!(fourth_add_res.is_ok());
|
||||
|
||||
let fifth_val = NodeType::new(5.0);
|
||||
let fifth_add_res = graph.add(fifth_val, 2);
|
||||
assert!(fifth_add_res.is_ok());
|
||||
|
||||
// Do the testing.
|
||||
let leaf_keys = graph.find_leaf_keys().unwrap();
|
||||
assert!(leaf_keys.len() == 2);
|
||||
|
||||
let keys_by_depth = graph.get_keys_by_depth().unwrap();
|
||||
let expected_keys_by_depth = vec![0, 2, 4, 1, 3];
|
||||
assert!(keys_by_depth == expected_keys_by_depth);
|
||||
|
||||
let backtracked_keys = graph.backtrack_from_key(&4).unwrap();
|
||||
let expected_backtracked_keys = vec![0, 2, 4];
|
||||
assert!(backtracked_keys == expected_backtracked_keys);
|
||||
}
|
||||
}
|
||||
Vendored
+53
@@ -0,0 +1,53 @@
|
||||
//
|
||||
// Copyright 2023 James Pace
|
||||
//
|
||||
// This Source Code Form is subject to the terms of the Mozilla Public
|
||||
// License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
|
||||
//
|
||||
// This Source Code Form is "Incompatible With Secondary Licenses", as
|
||||
// defined by the Mozilla Public License, v. 2.0.
|
||||
//
|
||||
use alloc::vec;
|
||||
use alloc::vec::Vec;
|
||||
|
||||
pub type Key = usize;
|
||||
|
||||
pub trait NodeValue: Clone {}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Node<NodeValueT: NodeValue> {
|
||||
value: NodeValueT,
|
||||
children: Vec<Key>,
|
||||
parent: Option<Key>,
|
||||
}
|
||||
|
||||
impl<NodeValueT: NodeValue> Node<NodeValueT> {
|
||||
pub fn new(value: NodeValueT, parent: Option<Key>) -> Self {
|
||||
Node {
|
||||
value: value,
|
||||
children: vec![],
|
||||
parent: parent,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn add_child(&mut self, child_key: Key) {
|
||||
self.children.push(child_key);
|
||||
}
|
||||
|
||||
pub fn children(&self) -> Vec<Key> {
|
||||
self.children.clone()
|
||||
}
|
||||
|
||||
pub fn parent(&self) -> Option<Key> {
|
||||
self.parent.clone()
|
||||
}
|
||||
|
||||
pub fn value(&self) -> NodeValueT {
|
||||
self.value.clone()
|
||||
}
|
||||
|
||||
pub fn set_value(&mut self, value: NodeValueT) {
|
||||
self.value = value;
|
||||
}
|
||||
}
|
||||
Reference in new issue
Block a user