diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,188 @@
+# hevm changelog
+
+## 0.16 - 2018-09-19
+ - Move ethjet into hevm
+
+## [0.15] - 2018-05-09
+ - Fix SDIV/SMOD definitions for extreme case
+
+## [0.14.1] - 2018-04-17
+ - Improve PC display in TTY
+
+## [0.14] - 2018-03-08
+ - Implement STATICCALL
+
+## [0.13] - 2018-02-28
+ - Require specific block number for RPC debugging
+ - Implement RETURNDATACOPY and RETURNDATASIZE
+ - Fix bug where created contracts didn't get their balance
+
+## [0.12.3] - 2017-12-19
+ - More useful RPC debugging because we strip the entire BZZR metadata
+
+## [0.12.2] - 2017-12-17
+ - Experimental new ecrecover implementation via libethjet
+ - Correct error checking for setUp() invocations
+
+## [0.12.1] - 2017-11-28
+ - Test name regex matching via --match
+ - Fixed source map parsing bug when used with solc --optimize
+ - TTY: fix a padding-related display glitch
+
+## [0.12] - 2017-11-14
+ - Use 13 different environment variables to control block parameters
+ for unit testing, e.g. block number, timestamp, initial balance, etc.
+
+ Full list:
+
+ - `DAPP_TEST_ADDRESS`
+ - `DAPP_TEST_CALLER`
+ - `DAPP_TEST_ORIGIN`
+ - `DAPP_TEST_GAS_CREATE`
+ - `DAPP_TEST_GAS_CALL`
+ - `DAPP_TEST_BALANCE_CREATE`
+ - `DAPP_TEST_BALANCE_CALL`
+ - `DAPP_TEST_COINBASE`
+ - `DAPP_TEST_NUMBER`
+ - `DAPP_TEST_TIMESTAMP`
+ - `DAPP_TEST_GAS_LIMIT`
+ - `DAPP_TEST_GAS_PRICE`
+ - `DAPP_TEST_DIFFICULTY`
+
+## [0.11.5] - 2017-11-14
+ - Use --state with --exec --debug
+
+## [0.11.4] - 2017-11-12
+ - Fix bug when unit test contract has creations in constructor
+
+## [0.11.3] - 2017-11-08
+ - Fix array support in ABI module
+
+## [0.11.2] - 2017-11-04
+ - TTY: show a help bar with key bindings at the bottom
+
+## [0.11.1] - 2017-11-02
+ - TTY: fix a display glitch
+ - TTY: improve display of ABI hashes on the stack
+
+## [0.11] - 2017-10-31
+ - Add "hevm flatten" for Etherscan-ish source code concatenation
+ - Simplify code by removing concrete/symbolic machine abstraction
+
+## [0.10.9] - 2017-10-23
+ - Fix bugs in ABI formatting
+
+## [0.10.7] - 2017-10-19
+ - Fix library linking bug
+ - Fix gas consumption of DELEGATECALL
+ - Better error tracing
+ - Experimental "contract browser" (stupid list of addresses)
+
+## [0.10.6] - 2017-10-19
+ - Enable library linking for unit tests and debugger
+ - Use the same default gas/balance values as `ethrun`
+
+## [0.10.5] - 2017-10-17
+ - Better trace output including arguments and return values
+ - Proof of concept coverage analysis via `dapp-test --coverage`
+
+## [0.10] - 2017-10-10
+ - Enable new trace output by default for failing tests
+ - Exit with failure code from test runner when tests fail
+ - More fixes to improve Ethereum test suite compliance
+
+## [0.9.5] - 2017-10-06
+ - Prototype of new trace output with `hevm dapp-test --verbose`
+ - Nicer trace tree in the TTY debugger
+ - Many fixes to improve Ethereum test suite compliance
+
+## [0.9] - 2017-09-29
+ - Integrates with live chains via RPC (read-only)
+ - Exposes a special contract address with test-related functionality (time warp)
+
+## [0.8.5] - 2017-09-22
+ - Renames `hevm` from its maiden name `hsevm` :sparkles:
+
+## [0.8] - 2017-09-21
+ - Implements gas metering (Metropolis rules by default)
+ - Shows gas counter in the terminal interface
+ - Enables debugger for consensus test executions
+ - Consensus test runner script with HTML reporting
+ - Passes 564 of the `VMTests`; fails 115 (see [0.8 test report])
+ - Command line options for specifying initial gas amounts and balances
+ - Improved TTY UI layout
+
+## [0.7] - 2017-09-07
+ - Can save and load contract states to disk using a Git-backed store (only `--exec`)
+ - Can debug raw EVM bytecode using `exec --debug`
+ - Fixes `exec --value`
+ - Has smarter defaults for command line when running tests or debugging
+ - Fixes bug with `MSIZE` in `CALL` context
+
+## [0.6.5] - 2017-09-01
+ - Fixes `exec` with regards to exit codes and error messages
+
+## [0.6.1] - 2017-08-03
+ - TTY: Adds command `C-n` in TTY for "stepping over"
+
+## [0.6] - 2017-08-03
+ - TTY: Adds second line to stack entries with humanized formatting
+ - TTY: Gets rid of the separate log pane in favor of a unified trace pane
+
+## [0.5] - 2017-08-02
+ - TTY: Adds `p` command for stepping backwards
+ - Adds ability to track origins of stack and heap words
+ - Tracks Keccak preimage for words that come from the `SHA3` instruction
+
+## [0.4] - 2017-07-31
+ - Parallelizes unit test runner
+ - Improves speed by changing representation of memory
+ - Internal refactoring for future support of symbolic execution
+ - Adds logs to the trace pane
+
+## [0.3.2] - 2017-06-17
+ - Adds `REVERT` opcode
+ - Sets `TIMESTAMP` value to `1` in unit tests
+
+## [0.3.0] - 2017-06-14
+ - Reverts contract state after `CALL` fails
+ - Improves test runner console output
+
+## [0.2.0] - 2017-06-13
+ - Fixes bug in `CALL`
+
+## [0.1.0.1] - 2017-03-31
+ - Highlights Solidity exactly on character level
+ - Adds `N` command for stepping by Solidity source position instead of by opcode
+
+## 0.1.0.0 - 2017-03-29
+ - First release
+
+[0.8 test report]: https://hydra.dapp.tools/build/135/download/1/index.html
+
+[0.12]: https://github.com/dapphub/hevm/compare/0.11.5...0.12
+[0.11.5]: https://github.com/dapphub/hevm/compare/0.11.4...0.11.5
+[0.11.4]: https://github.com/dapphub/hevm/compare/0.11.3...0.11.4
+[0.11.3]: https://github.com/dapphub/hevm/compare/0.11.2...0.11.3
+[0.11.2]: https://github.com/dapphub/hevm/compare/0.11.1...0.11.2
+[0.11.1]: https://github.com/dapphub/hevm/compare/0.11...0.11.1
+[0.11]: https://github.com/dapphub/hevm/compare/0.10.9...0.11
+[0.10.9]: https://github.com/dapphub/hevm/compare/0.10.7...0.10.9
+[0.10.7]: https://github.com/dapphub/hevm/compare/0.10.6...0.10.7
+[0.10.6]: https://github.com/dapphub/hevm/compare/0.10.5...0.10.6
+[0.10.5]: https://github.com/dapphub/hevm/compare/0.10...0.10.5
+[0.10]: https://github.com/dapphub/hevm/compare/0.9.5...0.10
+[0.9.5]: https://github.com/dapphub/hevm/compare/0.9...0.9.5
+[0.9]: https://github.com/dapphub/hevm/compare/v0.8.5...v0.9
+[0.8.5]: https://github.com/dapphub/hevm/compare/v0.8...v0.8.5
+[0.8]: https://github.com/dapphub/hevm/compare/v0.7...v0.8
+[0.7]: https://github.com/dapphub/hevm/compare/v0.6.5...v0.7
+[0.6.5]: https://github.com/dapphub/hevm/compare/v0.6.1...v0.6.5
+[0.6.1]: https://github.com/dapphub/hevm/compare/v0.6...v0.6.1
+[0.6]: https://github.com/dapphub/hevm/compare/v0.5...v0.6
+[0.5]: https://github.com/dapphub/hevm/compare/v0.4...v0.5
+[0.4]: https://github.com/dapphub/hevm/compare/v0.3.2...v0.4
+[0.3.2]: https://github.com/dapphub/hevm/compare/v0.3.0...v0.3.2
+[0.3.0]: https://github.com/dapphub/hevm/compare/v0.2.0...v0.3.0
+[0.2.0]: https://github.com/dapphub/hevm/compare/v0.1.0.1...v0.2.0
+[0.1.0.1]: https://github.com/dapphub/hevm/compare/v0.1.0.0...v0.1.0.1
diff --git a/COPYING b/COPYING
new file mode 100644
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,661 @@
+ GNU AFFERO GENERAL PUBLIC LICENSE
+ Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+ A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate. Many developers of free software are heartened and
+encouraged by the resulting cooperation. However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+ The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community. It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server. Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+ An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals. This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU Affero General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+ "The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+ To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy. The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+ 1. Source Code.
+
+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
+
+ A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+ The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+ The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+ The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+ The Corresponding Source for a work in source code form is that
+same work.
+
+ 2. Basic Permissions.
+
+ All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+ You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright. Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+ Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+ No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+ When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+ 4. Conveying Verbatim Copies.
+
+ You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+ You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+ 5. Conveying Modified Source Versions.
+
+ You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+ a) The work must carry prominent notices stating that you modified
+ it, and giving a relevant date.
+
+ b) The work must carry prominent notices stating that it is
+ released under this License and any conditions added under section
+ 7. This requirement modifies the requirement in section 4 to
+ "keep intact all notices".
+
+ c) You must license the entire work, as a whole, under this
+ License to anyone who comes into possession of a copy. This
+ License will therefore apply, along with any applicable section 7
+ additional terms, to the whole of the work, and all its parts,
+ regardless of how they are packaged. This License gives no
+ permission to license the work in any other way, but it does not
+ invalidate such permission if you have separately received it.
+
+ d) If the work has interactive user interfaces, each must display
+ Appropriate Legal Notices; however, if the Program has interactive
+ interfaces that do not display Appropriate Legal Notices, your
+ work need not make them do so.
+
+ A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+ 6. Conveying Non-Source Forms.
+
+ You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+ a) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by the
+ Corresponding Source fixed on a durable physical medium
+ customarily used for software interchange.
+
+ b) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by a
+ written offer, valid for at least three years and valid for as
+ long as you offer spare parts or customer support for that product
+ model, to give anyone who possesses the object code either (1) a
+ copy of the Corresponding Source for all the software in the
+ product that is covered by this License, on a durable physical
+ medium customarily used for software interchange, for a price no
+ more than your reasonable cost of physically performing this
+ conveying of source, or (2) access to copy the
+ Corresponding Source from a network server at no charge.
+
+ c) Convey individual copies of the object code with a copy of the
+ written offer to provide the Corresponding Source. This
+ alternative is allowed only occasionally and noncommercially, and
+ only if you received the object code with such an offer, in accord
+ with subsection 6b.
+
+ d) Convey the object code by offering access from a designated
+ place (gratis or for a charge), and offer equivalent access to the
+ Corresponding Source in the same way through the same place at no
+ further charge. You need not require recipients to copy the
+ Corresponding Source along with the object code. If the place to
+ copy the object code is a network server, the Corresponding Source
+ may be on a different server (operated by you or a third party)
+ that supports equivalent copying facilities, provided you maintain
+ clear directions next to the object code saying where to find the
+ Corresponding Source. Regardless of what server hosts the
+ Corresponding Source, you remain obligated to ensure that it is
+ available for as long as needed to satisfy these requirements.
+
+ e) Convey the object code using peer-to-peer transmission, provided
+ you inform other peers where the object code and Corresponding
+ Source of the work are being offered to the general public at no
+ charge under subsection 6d.
+
+ A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+ A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling. In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage. For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product. A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+ "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source. The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+ If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+ The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed. Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+ Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+ 7. Additional Terms.
+
+ "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+ When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.) You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+ Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+ a) Disclaiming warranty or limiting liability differently from the
+ terms of sections 15 and 16 of this License; or
+
+ b) Requiring preservation of specified reasonable legal notices or
+ author attributions in that material or in the Appropriate Legal
+ Notices displayed by works containing it; or
+
+ c) Prohibiting misrepresentation of the origin of that material, or
+ requiring that modified versions of such material be marked in
+ reasonable ways as different from the original version; or
+
+ d) Limiting the use for publicity purposes of names of licensors or
+ authors of the material; or
+
+ e) Declining to grant rights under trademark law for use of some
+ trade names, trademarks, or service marks; or
+
+ f) Requiring indemnification of licensors and authors of that
+ material by anyone who conveys the material (or modified versions of
+ it) with contractual assumptions of liability to the recipient, for
+ any liability that these contractual assumptions directly impose on
+ those licensors and authors.
+
+ All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+ If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+ Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+ 8. Termination.
+
+ You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+ However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+ Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+ 9. Acceptance Not Required for Having Copies.
+
+ You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+ 10. Automatic Licensing of Downstream Recipients.
+
+ Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+ An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+ You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+ 11. Patents.
+
+ A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+ A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+ Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+ In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+ If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+ If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Remote Network Interaction; Use with the GNU General Public License.
+
+ Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software. This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time. Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/ethjet/ethjet.c b/ethjet/ethjet.c
new file mode 100644
--- /dev/null
+++ b/ethjet/ethjet.c
@@ -0,0 +1,110 @@
+#include "ethjet.h"
+#include "tinykeccak.h"
+
+#include
+
+#include
+#include
+#include
+
+struct ethjet_context *
+ethjet_init ()
+{
+ struct ethjet_context *ctx;
+ ctx = malloc (sizeof *ctx);
+ if (!ctx) return NULL;
+
+ ctx->ec = secp256k1_context_create (SECP256K1_CONTEXT_VERIFY);
+
+ return ctx;
+}
+
+void
+ethjet_free (struct ethjet_context *ctx)
+{
+ secp256k1_context_destroy (ctx->ec);
+ free (ctx);
+}
+
+/*
+ * The example contract at 0xdeadbeef just reverses its input.
+ */
+int
+ethjet_example (struct ethjet_context *ctx,
+ uint8_t *in, size_t in_size,
+ uint8_t *out, size_t out_size)
+{
+ if (out_size != in_size)
+ return 0;
+
+ for (int i = 0; i < in_size; i++)
+ out[i] = in[in_size - i - 1];
+
+ return 1;
+}
+
+int
+ethjet_ecrecover (secp256k1_context *ctx,
+ uint8_t *in, size_t in_size,
+ uint8_t *out, size_t out_size)
+{
+ /* Input: H V R S, all 32 bytes. */
+
+ secp256k1_pubkey pubkey;
+ secp256k1_ecdsa_recoverable_signature rsig;
+
+ uint8_t *input64;
+ uint8_t pubkey_hex[65];
+ size_t hexlen = 65;
+
+ int recid;
+
+ if (in_size != 128)
+ return 0;
+
+ if (out_size != 32)
+ return 0;
+
+ input64 = in + 64;
+ recid = in[63] - 27;
+
+ if (recid < 0 || recid > 3)
+ return 0;
+
+ if (!secp256k1_ecdsa_recoverable_signature_parse_compact
+ (ctx, &rsig, input64, recid))
+ return 0;
+
+ if (!secp256k1_ecdsa_recover (ctx, &pubkey, &rsig, in))
+ return 0;
+
+ if (!secp256k1_ec_pubkey_serialize
+ (ctx, pubkey_hex, &hexlen, &pubkey, SECP256K1_EC_UNCOMPRESSED))
+ return 0;
+
+ if (sha3_256 (out, 32, pubkey_hex + 1, 64))
+ return 0;
+
+ memset (out, 0, 12);
+
+ return 1;
+}
+
+int
+ethjet (struct ethjet_context *ctx,
+ enum ethjet_operation op,
+ uint8_t *in, size_t in_size,
+ uint8_t *out, size_t out_size)
+{
+ switch (op) {
+ case ETHJET_ECRECOVER:
+ return ethjet_ecrecover (ctx->ec, in, in_size, out, out_size);
+ break;
+
+ case ETHJET_EXAMPLE:
+ return ethjet_example (ctx, in, in_size, out, out_size);
+
+ default:
+ return 0;
+ }
+}
diff --git a/ethjet/tinykeccak.c b/ethjet/tinykeccak.c
new file mode 100644
--- /dev/null
+++ b/ethjet/tinykeccak.c
@@ -0,0 +1,152 @@
+/** libkeccak-tiny
+*
+* A single-file implementation of SHA-3 and SHAKE.
+*
+* Implementor: David Leon Gil
+* License: CC0, attribution kindly requested. Blame taken too,
+* but not liability.
+*/
+
+#include "tinykeccak.h"
+
+#include
+#include
+#include
+#include
+
+/******** The Keccak-f[1600] permutation ********/
+
+/*** Constants. ***/
+static const uint8_t rho[24] = \
+ { 1, 3, 6, 10, 15, 21,
+ 28, 36, 45, 55, 2, 14,
+ 27, 41, 56, 8, 25, 43,
+ 62, 18, 39, 61, 20, 44};
+static const uint8_t pi[24] = \
+ {10, 7, 11, 17, 18, 3,
+ 5, 16, 8, 21, 24, 4,
+ 15, 23, 19, 13, 12, 2,
+ 20, 14, 22, 9, 6, 1};
+static const uint64_t RC[24] = \
+ {1ULL, 0x8082ULL, 0x800000000000808aULL, 0x8000000080008000ULL,
+ 0x808bULL, 0x80000001ULL, 0x8000000080008081ULL, 0x8000000000008009ULL,
+ 0x8aULL, 0x88ULL, 0x80008009ULL, 0x8000000aULL,
+ 0x8000808bULL, 0x800000000000008bULL, 0x8000000000008089ULL, 0x8000000000008003ULL,
+ 0x8000000000008002ULL, 0x8000000000000080ULL, 0x800aULL, 0x800000008000000aULL,
+ 0x8000000080008081ULL, 0x8000000000008080ULL, 0x80000001ULL, 0x8000000080008008ULL};
+
+/*** Helper macros to unroll the permutation. ***/
+#define rol(x, s) (((x) << s) | ((x) >> (64 - s)))
+#define REPEAT6(e) e e e e e e
+#define REPEAT24(e) REPEAT6(e e e e)
+#define REPEAT5(e) e e e e e
+#define FOR5(v, s, e) \
+ v = 0; \
+ REPEAT5(e; v += s;)
+
+/*** Keccak-f[1600] ***/
+static inline void keccakf(void* state) {
+ uint64_t* a = (uint64_t*)state;
+ uint64_t b[5] = {0};
+ uint64_t t = 0;
+ uint8_t x, y;
+
+ for (int i = 0; i < 24; i++) {
+ // Theta
+ FOR5(x, 1,
+ b[x] = 0;
+ FOR5(y, 5,
+ b[x] ^= a[x + y]; ))
+ FOR5(x, 1,
+ FOR5(y, 5,
+ a[y + x] ^= b[(x + 4) % 5] ^ rol(b[(x + 1) % 5], 1); ))
+ // Rho and pi
+ t = a[1];
+ x = 0;
+ REPEAT24(b[0] = a[pi[x]];
+ a[pi[x]] = rol(t, rho[x]);
+ t = b[0];
+ x++; )
+ // Chi
+ FOR5(y,
+ 5,
+ FOR5(x, 1,
+ b[x] = a[y + x];)
+ FOR5(x, 1,
+ a[y + x] = b[x] ^ ((~b[(x + 1) % 5]) & b[(x + 2) % 5]); ))
+ // Iota
+ a[0] ^= RC[i];
+ }
+}
+
+/******** The FIPS202-defined functions. ********/
+
+/*** Some helper macros. ***/
+
+#define _(S) do { S } while (0)
+#define FOR(i, ST, L, S) \
+ _(for (size_t i = 0; i < L; i += ST) { S; })
+#define mkapply_ds(NAME, S) \
+ static inline void NAME(uint8_t* dst, \
+ const uint8_t* src, \
+ size_t len) { \
+ FOR(i, 1, len, S); \
+ }
+#define mkapply_sd(NAME, S) \
+ static inline void NAME(const uint8_t* src, \
+ uint8_t* dst, \
+ size_t len) { \
+ FOR(i, 1, len, S); \
+ }
+
+mkapply_ds(xorin, dst[i] ^= src[i]) // xorin
+mkapply_sd(setout, dst[i] = src[i]) // setout
+
+#define P keccakf
+#define Plen 200
+
+// Fold P*F over the full blocks of an input.
+#define foldP(I, L, F) \
+ while (L >= rate) { \
+ F(a, I, rate); \
+ P(a); \
+ I += rate; \
+ L -= rate; \
+ }
+
+/** The sponge-based hash construction. **/
+static inline int hash(uint8_t* out, size_t outlen,
+ const uint8_t* in, size_t inlen,
+ size_t rate, uint8_t delim) {
+ if ((out == NULL) || ((in == NULL) && inlen != 0) || (rate >= Plen)) {
+ return -1;
+ }
+ uint8_t a[Plen] = {0};
+ // Absorb input.
+ foldP(in, inlen, xorin);
+ // Xor in the DS and pad frame.
+ a[inlen] ^= delim;
+ a[rate - 1] ^= 0x80;
+ // Xor in the last block.
+ xorin(a, in, inlen);
+ // Apply P
+ P(a);
+ // Squeeze output.
+ foldP(out, outlen, setout);
+ setout(a, out, outlen);
+ memset(a, 0, 200);
+ return 0;
+}
+
+#define defsha3(bits) \
+ int sha3_##bits(uint8_t* out, size_t outlen, \
+ const uint8_t* in, size_t inlen) { \
+ if (outlen > (bits/8)) { \
+ return -1; \
+ } \
+ return hash(out, outlen, in, inlen, 200 - (bits / 4), 0x01); \
+ }
+
+/*** FIPS202 SHA3 FOFs ***/
+defsha3(256)
+defsha3(512)
diff --git a/hevm-cli/hevm-cli.hs b/hevm-cli/hevm-cli.hs
new file mode 100644
--- /dev/null
+++ b/hevm-cli/hevm-cli.hs
@@ -0,0 +1,372 @@
+-- Main file of the hevm CLI program
+
+{-# Language BangPatterns #-}
+{-# Language CPP #-}
+{-# Language DeriveGeneric #-}
+{-# Language GeneralizedNewtypeDeriving #-}
+{-# Language LambdaCase #-}
+{-# Language NumDecimals #-}
+{-# Language OverloadedStrings #-}
+{-# Language TemplateHaskell #-}
+
+import EVM.Concrete (w256)
+
+import qualified EVM as EVM
+import qualified EVM.Concrete as EVM
+import qualified EVM.FeeSchedule as FeeSchedule
+import qualified EVM.Fetch
+import qualified EVM.Flatten
+import qualified EVM.Stepper
+import qualified EVM.TTY as EVM.TTY
+import qualified EVM.Emacs as EVM.Emacs
+
+#if MIN_VERSION_aeson(1, 0, 0)
+import qualified EVM.VMTest as VMTest
+#endif
+
+import EVM.Debug
+import EVM.Exec
+import EVM.Solidity
+import EVM.Types hiding (word)
+import EVM.UnitTest (UnitTestOptions, coverageReport, coverageForUnitTestContract)
+import EVM.UnitTest (runUnitTestContract)
+import EVM.UnitTest (getParametersFromEnvironmentVariables, testNumber)
+import EVM.Dapp (findUnitTests, dappInfo)
+
+import qualified EVM.UnitTest as EVM.UnitTest
+
+import qualified Paths_hevm as Paths
+
+import Control.Concurrent.Async (async, waitCatch)
+import Control.Exception (evaluate)
+import Control.Lens
+import Control.Monad (void, when, forM_)
+import Control.Monad.State.Strict (execState)
+import Data.ByteString (ByteString)
+import Data.List (intercalate, isSuffixOf)
+import Data.Text (Text, unpack, pack)
+import Data.Maybe (fromMaybe)
+import System.Directory (withCurrentDirectory, listDirectory)
+import System.Exit (die, exitFailure)
+import System.IO (hFlush, stdout)
+import System.Process (callProcess)
+import System.Timeout (timeout)
+
+import qualified Data.ByteString as ByteString
+import qualified Data.ByteString.Base16 as BS16
+import qualified Data.ByteString.Char8 as Char8
+import qualified Data.ByteString.Lazy as LazyByteString
+import qualified Data.Map as Map
+import qualified Options.Generic as Options
+
+import qualified EVM.Facts as Facts
+import qualified EVM.Facts.Git as Git
+
+import qualified Text.Regex.TDFA as Regex
+import qualified Data.Sequence as Seq
+
+-- This record defines the program's command-line options
+-- automatically via the `optparse-generic` package.
+data Command
+ = Exec
+ { code :: ByteString
+ , calldata :: Maybe ByteString
+ , address :: Maybe Addr
+ , caller :: Maybe Addr
+ , origin :: Maybe Addr
+ , coinbase :: Maybe Addr
+ , value :: Maybe W256
+ , gas :: Maybe W256
+ , number :: Maybe W256
+ , timestamp :: Maybe W256
+ , gaslimit :: Maybe W256
+ , gasprice :: Maybe W256
+ , difficulty :: Maybe W256
+ , debug :: Bool
+ , state :: Maybe String
+ }
+ | DappTest
+ { jsonFile :: Maybe String
+ , dappRoot :: Maybe String
+ , debug :: Bool
+ , rpc :: Maybe URL
+ , verbose :: Bool
+ , coverage :: Bool
+ , state :: Maybe String
+ , match :: Maybe String
+ }
+ | Interactive
+ { jsonFile :: Maybe String
+ , dappRoot :: Maybe String
+ , rpc :: Maybe URL
+ , state :: Maybe String
+ }
+ | VmTest
+ { file :: String
+ , test :: [String]
+ , debug :: Bool
+ }
+ | VmTestReport
+ { tests :: String
+ }
+ | Flatten
+ { sourceFile :: String
+ , jsonFile :: Maybe String
+ , dappRoot :: Maybe String
+ }
+ | Emacs
+ deriving (Show, Options.Generic, Eq)
+
+type URL = Text
+
+instance Options.ParseRecord Command where
+ parseRecord =
+ Options.parseRecordWithModifiers Options.lispCaseModifiers
+
+optsMode :: Command -> Mode
+optsMode x = if debug x then Debug else Run
+
+unitTestOptions :: Command -> IO UnitTestOptions
+unitTestOptions cmd = do
+ vmModifier <-
+ case state cmd of
+ Nothing ->
+ pure id
+ Just repoPath -> do
+ facts <- Git.loadFacts (Git.RepoAt repoPath)
+ pure (flip Facts.apply facts)
+
+ params <- getParametersFromEnvironmentVariables
+
+ pure EVM.UnitTest.UnitTestOptions
+ { EVM.UnitTest.oracle =
+ case rpc cmd of
+ Just url -> EVM.Fetch.http (EVM.Fetch.BlockNumber (testNumber params)) url
+ Nothing -> EVM.Fetch.zero
+ , EVM.UnitTest.verbose = verbose cmd
+ , EVM.UnitTest.match = pack $ fromMaybe "^test" (match cmd)
+ , EVM.UnitTest.vmModifier = vmModifier
+ , EVM.UnitTest.testParams = params
+ }
+
+main :: IO ()
+main = do
+ cmd <- Options.getRecord "hevm -- Ethereum evaluator"
+ let
+ root = fromMaybe "." (dappRoot cmd)
+ case cmd of
+ Exec {} ->
+ launchExec cmd
+ VmTest {} ->
+ launchVMTest cmd
+ DappTest {} ->
+ withCurrentDirectory root $ do
+ testFile <- findJsonFile (jsonFile cmd)
+ testOpts <- unitTestOptions cmd
+ case coverage cmd of
+ False ->
+ dappTest testOpts (optsMode cmd) testFile
+ True ->
+ dappCoverage testOpts (optsMode cmd) testFile
+ Interactive {} ->
+ withCurrentDirectory root $ do
+ testFile <- findJsonFile (jsonFile cmd)
+ testOpts <- unitTestOptions cmd
+ EVM.TTY.main testOpts root testFile
+ VmTestReport {} ->
+ withCurrentDirectory (tests cmd) $ do
+ dataDir <- Paths.getDataDir
+ callProcess "bash" [dataDir ++ "/run-consensus-tests", "."]
+ Flatten {} ->
+ withCurrentDirectory root $ do
+ theJson <- findJsonFile (jsonFile cmd)
+ readSolc theJson >>=
+ \case
+ Just (contractMap, cache) -> do
+ let dapp = dappInfo "." contractMap cache
+ EVM.Flatten.flatten dapp (pack (sourceFile cmd))
+ Nothing ->
+ error ("Failed to read Solidity JSON for `" ++ theJson ++ "'")
+ Emacs ->
+ EVM.Emacs.main
+
+findJsonFile :: Maybe String -> IO String
+findJsonFile (Just s) = pure s
+findJsonFile Nothing = do
+ outFiles <- listDirectory "out"
+ case filter (isSuffixOf ".sol.json") outFiles of
+ [x] -> pure ("out/" ++ x)
+ [] ->
+ error $ concat
+ [ "No `*.sol.json' file found in `./out'.\n"
+ , "Maybe you need to run `dapp build'.\n"
+ , "You can specify a file with `--json-file'."
+ ]
+ xs ->
+ error $ concat
+ [ "Multiple `*.sol.json' files found in `./out'.\n"
+ , "Specify one using `--json-file'.\n"
+ , "Files found: "
+ , intercalate ", " xs
+ ]
+
+dappTest :: UnitTestOptions -> Mode -> String -> IO ()
+dappTest opts _ solcFile = do
+ readSolc solcFile >>=
+ \case
+ Just (contractMap, cache) -> do
+ let matcher = regexMatches (EVM.UnitTest.match opts)
+ let unitTests = (findUnitTests matcher) (Map.elems contractMap)
+ results <- mapM (runUnitTestContract opts contractMap cache) unitTests
+ when (any (== False) results) exitFailure
+ Nothing ->
+ error ("Failed to read Solidity JSON for `" ++ solcFile ++ "'")
+
+regexMatches :: Text -> Text -> Bool
+regexMatches regexSource =
+ let
+ compOpts =
+ Regex.defaultCompOpt { Regex.lastStarGreedy = True }
+ execOpts =
+ Regex.defaultExecOpt { Regex.captureGroups = False }
+ regex = Regex.makeRegexOpts compOpts execOpts (unpack regexSource)
+ in
+ Regex.matchTest regex . Seq.fromList . unpack
+
+dappCoverage :: UnitTestOptions -> Mode -> String -> IO ()
+dappCoverage opts _ solcFile = do
+ readSolc solcFile >>=
+ \case
+ Just (contractMap, cache) -> do
+ let matcher = regexMatches (EVM.UnitTest.match opts)
+ let unitTests = (findUnitTests matcher) (Map.elems contractMap)
+ covs <- mconcat <$> mapM (coverageForUnitTestContract opts contractMap cache) unitTests
+
+ let
+ dapp = dappInfo "." contractMap cache
+ f (k, vs) = do
+ putStr "***** hevm coverage for "
+ putStrLn (unpack k)
+ putStrLn ""
+ forM_ vs $ \(n, bs) -> do
+ case ByteString.find (\x -> x /= 0x9 && x /= 0x20 && x /= 0x7d) bs of
+ Nothing -> putStr "..... "
+ Just _ ->
+ case n of
+ -1 -> putStr ";;;;; "
+ 0 -> putStr "##### "
+ _ -> putStr " "
+ Char8.putStrLn bs
+ putStrLn ""
+
+ mapM_ f (Map.toList (coverageReport dapp covs))
+ Nothing ->
+ error ("Failed to read Solidity JSON for `" ++ solcFile ++ "'")
+
+launchExec :: Command -> IO ()
+launchExec cmd = do
+ let vm = vmFromCommand cmd
+ vm1 <- case state cmd of
+ Nothing -> pure vm
+ Just path ->
+ -- Note: this will load the code, so if you've specified a state
+ -- repository, then you effectively can't change `--code' after
+ -- the first run.
+ Facts.apply vm <$> Git.loadFacts (Git.RepoAt path)
+
+ case optsMode cmd of
+ Run ->
+ let vm' = execState exec vm1
+ in case view EVM.result vm' of
+ Nothing ->
+ error "internal error; no EVM result"
+ Just (EVM.VMFailure e) -> do
+ die (show e)
+ Just (EVM.VMSuccess (EVM.B x)) -> do
+ let hex = BS16.encode x
+ if ByteString.null hex then pure ()
+ else do
+ ByteString.putStr hex
+ putStrLn ""
+ case state cmd of
+ Nothing -> pure ()
+ Just path ->
+ Git.saveFacts (Git.RepoAt path) (Facts.vmFacts vm')
+ Debug ->
+ void (EVM.TTY.runFromVM vm1)
+
+vmFromCommand :: Command -> EVM.VM
+vmFromCommand cmd =
+ vm1 & EVM.env . EVM.contracts . ix address' . EVM.balance +~ (w256 value')
+ where
+ value' = word value 0
+ address' = addr address 1
+ vm1 = EVM.makeVm $ EVM.VMOpts
+ { EVM.vmoptCode = hexByteString "--code" (code cmd)
+ , EVM.vmoptCalldata = maybe "" (hexByteString "--calldata")
+ (calldata cmd)
+ , EVM.vmoptValue = value'
+ , EVM.vmoptAddress = address'
+ , EVM.vmoptCaller = addr caller 2
+ , EVM.vmoptOrigin = addr origin 3
+ , EVM.vmoptGas = word gas 0
+ , EVM.vmoptCoinbase = addr coinbase 0
+ , EVM.vmoptNumber = word number 0
+ , EVM.vmoptTimestamp = word timestamp 0
+ , EVM.vmoptGaslimit = word gaslimit 0
+ , EVM.vmoptGasprice = word gasprice 0
+ , EVM.vmoptDifficulty = word difficulty 0
+ , EVM.vmoptSchedule = FeeSchedule.metropolis
+ }
+ word f def = maybe def id (f cmd)
+ addr f def = maybe def id (f cmd)
+
+launchVMTest :: Command -> IO ()
+launchVMTest cmd =
+#if MIN_VERSION_aeson(1, 0, 0)
+ VMTest.parseSuite <$> LazyByteString.readFile (file cmd) >>=
+ \case
+ Left err -> print err
+ Right allTests ->
+ let testFilter =
+ if null (test cmd)
+ then id
+ else filter (\(x, _) -> elem x (test cmd))
+ in
+ mapM_ (runVMTest (optsMode cmd)) $
+ testFilter (Map.toList allTests)
+#else
+ putStrLn "Not supported"
+#endif
+
+#if MIN_VERSION_aeson(1, 0, 0)
+runVMTest :: Mode -> (String, VMTest.Case) -> IO Bool
+runVMTest mode (name, x) = do
+ let
+ vm0 = VMTest.vmForCase x
+ m = void EVM.Stepper.execFully >> EVM.Stepper.evm EVM.finalize
+
+ putStr (name ++ " ")
+ hFlush stdout
+ result <- do
+ action <- async $
+ case mode of
+ Run ->
+ timeout (1e6) . evaluate $ do
+ execState (VMTest.interpret m) vm0
+ Debug ->
+ Just <$> EVM.TTY.runFromVM vm0
+ waitCatch action
+ case result of
+ Right (Just vm1) -> do
+ ok <- VMTest.checkExpectation x vm1
+ putStrLn (if ok then "ok" else "")
+ return ok
+ Right Nothing -> do
+ putStrLn "timeout"
+ return False
+ Left _ -> do
+ putStrLn "error"
+ return False
+
+#endif
diff --git a/hevm.cabal b/hevm.cabal
new file mode 100644
--- /dev/null
+++ b/hevm.cabal
@@ -0,0 +1,204 @@
+name:
+ hevm
+version:
+ 0.16
+synopsis:
+ Ethereum virtual machine evaluator
+description:
+ Hevm implements the Ethereum virtual machine semantics.
+ .
+ It can be used as a library, and it also comes with an executable
+ that can run unit test suites, optionally with a visual TTY debugger.
+homepage:
+ https://github.com/dapphub/dapptools
+license:
+ AGPL-3
+license-file:
+ COPYING
+author:
+ Mikael Brockman
+maintainer:
+ mikael@brockman.se
+category:
+ Ethereum
+build-type:
+ Simple
+cabal-version:
+ >=1.10
+data-files:
+ run-consensus-tests
+extra-source-files:
+ CHANGELOG.md
+
+library
+ exposed-modules:
+ EVM,
+ EVM.ABI,
+ EVM.Concrete,
+ EVM.Dapp,
+ EVM.Dev,
+ EVM.Debug,
+ EVM.Emacs,
+ EVM.Exec,
+ EVM.Facts,
+ EVM.Facts.Git,
+ EVM.Flatten,
+ EVM.Format,
+ EVM.Fetch,
+ EVM.FeeSchedule,
+ EVM.Op,
+ EVM.Precompiled,
+ EVM.Keccak,
+ EVM.Solidity,
+ EVM.Stepper,
+ EVM.StorageLayout,
+ EVM.TTY,
+ EVM.TTYCenteredList,
+ EVM.Types,
+ EVM.UnitTest,
+ EVM.VMTest,
+ Paths_hevm
+ ghc-options:
+ -Wall -Wno-deprecations
+ extra-libraries:
+ secp256k1
+ c-sources:
+ ethjet/ethjet.c, ethjet/tinykeccak.c
+ build-depends:
+ QuickCheck >= 2.9,
+ abstract-par >= 0.3,
+ aeson >= 1.0,
+ ansi-wl-pprint >= 0.6,
+ base >= 4.9 && < 5,
+ base16-bytestring >= 0.1,
+ base64-bytestring >= 1.0,
+ binary >= 0.8,
+ brick >= 0.18,
+ bytestring >= 0.10,
+ cereal >= 0.5,
+ containers >= 0.5,
+ cryptonite >= 0.21,
+ data-dword >= 0.3,
+ deepseq >= 1.4,
+ directory >= 1.3,
+ filepath >= 1.4,
+ fgl >= 5.0,
+ ghci-pretty >= 0.0,
+ haskeline >= 0.7,
+ time >= 1.8,
+ transformers >= 0.5,
+ lens >= 4.15,
+ lens-aeson >= 1.0,
+ megaparsec >= 6.0,
+ memory >= 0.14,
+ monad-par >= 0.3,
+ mtl >= 2.2,
+ multiset >= 0.3,
+ operational >= 0.2,
+ optparse-generic >= 1.1,
+ process >= 1.4,
+ quickcheck-text >= 0.1,
+ readline >= 1.0,
+ restless-git >= 0.6,
+ rosezipper >= 0.2,
+ scientific >= 0.3,
+ s-cargot >= 0.1,
+ temporary >= 1.2,
+ text >= 1.2,
+ text-format >= 0.3,
+ tree-view == 0.5,
+ unordered-containers >= 0.2,
+ vector >= 0.11,
+ vty >= 5.15,
+ wreq >= 0.5
+ hs-source-dirs:
+ src
+ default-language:
+ Haskell2010
+ default-extensions:
+ BangPatterns,
+ DeriveDataTypeable,
+ DeriveGeneric,
+ FlexibleContexts,
+ GeneralizedNewtypeDeriving,
+ LambdaCase,
+ OverloadedStrings,
+ Rank2Types,
+ RecordWildCards,
+ TypeFamilies,
+ ViewPatterns
+
+executable hevm
+ default-language:
+ Haskell2010
+ hs-source-dirs:
+ hevm-cli
+ main-is:
+ hevm-cli.hs
+ ghc-options:
+ -Wall -threaded -with-rtsopts=-N
+ build-depends:
+ QuickCheck >= 2.9,
+ aeson >= 1.0,
+ ansi-wl-pprint >= 0.6,
+ async == 2.*,
+ base >= 4.9 && < 5,
+ base16-bytestring >= 0.1,
+ base64-bytestring >= 1.0,
+ binary >= 0.8,
+ brick >= 0.18,
+ bytestring >= 0.10,
+ containers >= 0.5,
+ cryptonite >= 0.21,
+ data-dword >= 0.3,
+ deepseq >= 1.4,
+ directory >= 1.3,
+ filepath >= 1.4,
+ ghci-pretty >= 0.0,
+ hevm,
+ lens >= 4.15,
+ lens-aeson >= 1.0,
+ memory >= 0.14,
+ mtl >= 2.2,
+ optparse-generic >= 1.1,
+ process >= 1.4,
+ quickcheck-text >= 0.1,
+ readline >= 1.0,
+ regex-tdfa >= 1.2,
+ temporary >= 1.2,
+ text >= 1.2,
+ text-format >= 0.3,
+ unordered-containers >= 0.2,
+ vector >= 0.11,
+ vty >= 5.15
+
+test-suite test
+ default-language:
+ Haskell2010
+ ghc-options:
+ -Wall
+ type:
+ exitcode-stdio-1.0
+ hs-source-dirs:
+ test
+ main-is:
+ test.hs
+ extra-libraries:
+ secp256k1
+ build-depends:
+ HUnit >= 1.6,
+ QuickCheck >= 2.9,
+ base >= 4.9 && < 5,
+ base16-bytestring >= 0.1,
+ ghci-pretty >= 0.0.2,
+ hevm,
+ tasty >= 1.0,
+ tasty-hunit >= 0.10,
+ tasty-quickcheck >= 0.9,
+ mtl >= 2.2,
+ lens >= 4.16,
+ text >= 1.2,
+ here >= 1.2,
+ bytestring >= 0.10,
+ vector >= 0.12,
+ binary >= 0.8
diff --git a/run-consensus-tests b/run-consensus-tests
new file mode 100644
--- /dev/null
+++ b/run-consensus-tests
@@ -0,0 +1,82 @@
+#!/usr/bin/env bash
+set -e
+
+if [[ $# != 1 ]]; then
+ echo >&2 "usage: $(basename "$0") "
+ exit 1
+fi
+
+{
+ cd "$1"
+ for x in VMTests/*/*; do
+ echo >&2 "$x"
+ echo -n "$x " ; hevm vm-test --file $x
+ done
+} | {
+ while read path test outcome; do
+ category=$(dirname "$path")
+ testcase=$(basename "${path%.json}")
+ row="
$testcase
$outcome
$category"
+ row+=$'\n'
+ case $outcome in
+ ok) passed+=$row ;;
+ *) failed+=$row ;;
+ esac
+ done
+
+ cat <<.
+
+hevm test results
+
+
+