* encode ast in protobuf
* daml-lf parser: make defaultPackageId and languageVersion parametric
* daml-lf rewritting of AST
* test ast encoder
* copyright
* test function type encoding
* daml-lf add parameter to parser implicits
* damlfl-as stands for "damllf assembler"
* move encoder in its own private package
* Freeze DAML-LF 1.dev into DAML-LF 1.5
In other words, we release DAML-LF 1.5.
This is required for generic templates (#1387).
* description of FROM_TEXT_INT64 & FROM_TEXT_DECIMAL
* amend version history
add ``FROM_TEXT_INT64`` and ``FROM_TEXT_DECIMAL`` in the specification changelog
* typos
* Fix markup in DAML-LF spec
* Add release notes
* Make the actors optional in DAML-LF's exercise instruction
If they are not present, the controllers will be filled in. Surface DAML
does this currenty anyway by fetching the contract and computing the
choice controllers before each `exercise`. This change will allow for
getting rid of the additional `fetch` preceding each `exercise`.
The compiler does not use the new form yet. I will do this in a separate
PR together with tests for the new behaviour.
This fixes#1347.
* Fix DAML-LF type checker test
* Check presence of actors for old DAML-LF versions in decoder
* Lift restriction on serializable contract ids in DAML-LF 1.dev
In DAML-LF 1.dev, make `ContractId a` serializable whenever `a` is
serializable. This is part 2 of #1277.
* Reformat Scala
* Add changelog entry to daml_lf_1.proto
* Fix package valdiation for DAML-LF 1.4
Currently, complex contract keys are are not accepted for DAML-LF 1.4
although they should because we forgot to roll the version when freezing
DAML-LF 1.4.
@bitonic we need a way forward to avoid this in the future.
* Fix test
* Format Scala
* Add more tests for (un)serializable contract ids
I want to lift this restriction in a subsequent PR for the next version
of DAML-LF. Let's first make sure we have a correct implementation for the
current version though.
* fix test
* in serializability tests, check the modules are properly typed
* Relax syntactic restriction on contract keys in DAML-LF 1.dev
We lift the syntactic restriction that contact keys must be built using
only record constructions and projections entirely when compiling to
DAML-LF 1.dev. To make this more useful, we also search all sub-expressions
of `maintainer` in `key` during our rewriting of `maintainer` for using
`this` to using `key`.
As one of our next steps we should bring `key` into scope in `maintainer`
and perhaps deprecate the use of `this` at some point in the future.
* Fix versioning
* Adapt package validation to complext contract keys
* removing major LF dev version from Haskell proto codecs
* removing major LF dev version from scenario service client
* missed import
* remove Scala support for dev major version; remove --allow-dev option from sandbox cli
* Version.minorFromCliOption function
* don't build daml-stdlib artifacts for dev major
* remove damlc CLI --target dev
* release note about removed dev major LF version
* governance now discusses minor dev, no more major dev
* don't build from daml_lf_dev.proto anymore
* remove daml_lf_dev.proto
* raise deprecated release
* reserve 9999 in the ArchivePayload sum, as suggested by @bitonic
* use reserved proto keyword, as suggested by @bitonic
- `reserved` cannot occur within `oneof` block
* remove --allow-dev test
* dev removal release note followed the previous release; move it back to HEAD
* fix various conversion functions from string to Decimal
Fixes#399.
This fixes a critical bug -- since:
* The DAML-LF spec specifies that the scale of `Decimal` is 10 --
that is, there are at most 10 digits past the decimal point:
<79bbf5c794/daml-lf/spec/value.rst (field-decimal)>.
* However, the code converting from the string representation that
we get on the wire was _not_ performing this check. This is due
to two reasons:
- `Decimal.check` is a function that checks whether a given
`Decimal` is within the upper and lower bounds of what the
DAML-LF spec specifies, but crucially it does _not_ check that
the scale is not exceeded:
<79bbf5c794/daml-lf/data/src/main/scala/com/digitalasset/daml/lf/data/Decimal.scala (L31)>.
This behavior is correct in some cases (more on that later),
but not in others. Crucially, `Decimal.fromString`, which was
supposed to check if a decimal string literal is valid, used
this function, which means that it accepted string literals
containing numbers out of the required scale, rounding them to
make them fit within the scale. This function has been renamed
to `Decimal.checkWithinBoundsAndRound`, and a new function
`Decimal.checkWithinBoundsAndWithinScale` has been added, which
fails if the number provided has data not within the scale.
`Decimal.fromString` now uses
`Decimal.checkWithinBoundsAndWithinScale`.
- `ApiToLfEngine.parseDecimal` assumed that `Decimal.fromString` _did_
fail when passed numbers that were in any way invalid, and
moreover did _not_ use the result of `Decimal.fromString`, but rather
re-parsed the string into an unconstrained `BigDecimal`:
<79bbf5c794/ledger/ledger-api-common/src/main/scala/com/digitalasset/platform/participant/util/ApiToLfEngine.scala (L96)>.
The reason for the code to work this way is that in the past
it was responsible for converting decimal strings both for the
current engine but also for an older version of the engine which
handled decimals of a different type. Both issues have been fixed.
* Therefore, `Decimal`s with scale exceeding the specified scale
made it into the engine, and contracts could be created containing
this invalid value.
* Once on the ledger, these bad numbers can be used to produce extremely
surprising results, due to how `Decimal` operations are
implemented. Generally speaking, all operations on `Decimal`
first compute the result and then run the output through
`Decimal.checkWithinBoundsAndRound`. The reason for this behavior
is that we specify multiplication and division as rounding their
output. Consider the case where the bad value 0.00000000005 made
it to the engine, and is then added to 100. The full-precision
result will be 100.00000000005, which after rounding becomes 100.
Therefore, on a ledger where such invalid values exist, it is not
the case that `y > 0 ==> x + y != x`, and so on.
Thanks a bunch to @briandbecker for the excellent bug report.
* fix failing test using to much precision
* Add buildifier targets.
The tool allows to check and format BUILD files in the repo.
To check if files are well formatted, run:
bazel run //:buildifier
To fix badly-formatted files run:
bazel run //:buildifier-fix
* Cleanup dade-copyright-headers formatting.
* Fix dade-copyright-headers on files with just the copyright.
* Run buildifier automatically on CI via 'fmt.sh'.
* Reformat all BUILD files with buildifier.
Excludes autogenerated Bazel files.
