anoma/juvix
1
1
Fork 0
mirror of https://github.com/anoma/juvix.git synced 2024-12-01 00:04:58 +03:00
Code Issues Projects Releases Wiki Activity
f7382caeac
juvix/tests/negative
History
Jan Mas Rovira f7382caeac
Record updates (#2263) 
- Closes #1642.

This pr introduces syntax for convenient record updates.
Example:
```
type Triple (A B C : Type) :=
  | mkTriple {
      fst : A;
      snd : B;
      thd : C;
    };

main : Triple Nat Nat Nat;
main :=
  let
    p : Triple Nat Nat Nat := mkTriple 2 2 2;
    p' :
      Triple Nat Nat Nat :=
        p @Triple{
          fst := fst + 1;
          snd := snd * 3
        };
    f : Triple Nat Nat Nat -> Triple Nat Nat Nat := (@Triple{fst := fst * 10});
  in f p';
```
We write `@InductiveType{..}` to update the contents of a record. The
`@` is used for parsing. The `InductiveType` symbol indicates the type
of the record update. Inside the braces we have a list of `fieldName :=
newValue` items separated by semicolon. The `fieldName` is bound in
`newValue` with the old value of the field. Thus, we can write something
like `p @Triple{fst := fst + 1;}`.

Record updates `X@{..}` are parsed as postfix operators with higher
priority than application, so `f x y @X{q := 1}` is equivalent to `f x
(y @X{q := 1})`.

It is possible the use a record update with no argument by wrapping the
update in parentheses. See `f` in the above example.
2023-08-07 12:35:36 +02:00
..
230 Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
258 Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
265 Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
BindGroupConflict Change syntax for ind. data types and forbid the empty data type (#1684) 2023-01-03 13:49:04 +01:00
Dependencies Fix dependencies suggestion in missing module error (#2024) 2023-04-22 18:15:38 +01:00
ImportCycle Rename MiniJuvix to Juvix (#259) 2022-07-08 13:59:45 +02:00
Internal Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
issue1337 Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
issue1344 Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
issue1700 Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
NoDependencies Fix dependencies suggestion in missing module error (#2024) 2023-04-22 18:15:38 +01:00
StdlibConflict Fix Makefile target bugs for formatting and type Checking Juvix files (#2057) 2023-05-19 17:33:56 +02:00
Termination Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
UsingHiding Scope check symbols inside using {..} and hiding {..} (#2108) 2023-05-22 11:41:13 +02:00
AmbiguousConstructor.juvix Change syntax for ind. data types and forbid the empty data type (#1684) 2023-01-03 13:49:04 +01:00
AmbiguousExport.juvix Change syntax for ind. data types and forbid the empty data type (#1684) 2023-01-03 13:49:04 +01:00
AmbiguousModule.juvix Rename MiniJuvix to Juvix (#259) 2022-07-08 13:59:45 +02:00
AmbiguousSymbol.juvix Change syntax for ind. data types and forbid the empty data type (#1684) 2023-01-03 13:49:04 +01:00
AppLeftImplicit.juvix Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
AsPatternAlias.juvix Improve As-Pattern parsing (#1603) 2022-11-03 10:02:22 +01:00
ConstructorExpectedLeftApplication.juvix Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
DanglingJudoc.juvix Add dangling judoc error (#2099) 2023-05-16 15:39:43 +02:00
DuplicateArgument.juvix Named arguments (#2250) 2023-07-18 10:32:34 +01:00
DuplicateFixity.juvix Add syntax keyword (#2107) 2023-05-22 12:50:07 +02:00
DuplicateInductiveParameterName.juvix Named arguments (#2250) 2023-07-18 10:32:34 +01:00
ImplicitPatternLeftApplication.juvix Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
InfixError.juvix Add syntax keyword (#2107) 2023-05-22 12:50:07 +02:00
InfixErrorP.juvix Add syntax keyword (#2107) 2023-05-22 12:50:07 +02:00
Iterators1.juvix Iterator syntax (#2126) 2023-05-30 15:30:11 +02:00
Iterators2.juvix Disallow iterators with zero ranges (#2267) 2023-08-03 11:43:59 +02:00
Iterators3.juvix Iterator syntax (#2126) 2023-05-30 15:30:11 +02:00
Iterators4.juvix Iterator syntax (#2126) 2023-05-30 15:30:11 +02:00
Iterators5.juvix Iterator syntax (#2126) 2023-05-30 15:30:11 +02:00
juvix.yaml Rename MiniJuvix to Juvix (#259) 2022-07-08 13:59:45 +02:00
LacksFunctionClause.juvix Fix Makefile target bugs for formatting and type Checking Juvix files (#2057) 2023-05-19 17:33:56 +02:00
LacksTypeSig2.juvix Allow shadowing local variables with let function definitions (#1847) 2023-02-22 10:26:54 +01:00
LacksTypeSig.juvix remove ≔ from the language and replace it by := (#1563) 2022-09-30 10:55:32 +10:00
LetMissingClause.juvix Format juvix files using new function syntax (#2245) 2023-07-11 17:22:07 +02:00
MissingArgument.juvix Named arguments (#2250) 2023-07-18 10:32:34 +01:00
ModuleNotInScope.juvix Rename MiniJuvix to Juvix (#259) 2022-07-08 13:59:45 +02:00
MultipleDeclarations.juvix Rename MiniJuvix to Juvix (#259) 2022-07-08 13:59:45 +02:00
MultipleExportConflict.juvix Rename MiniJuvix to Juvix (#259) 2022-07-08 13:59:45 +02:00
NestedAsPatterns.juvix Improve As-Pattern parsing (#1603) 2022-11-03 10:02:22 +01:00
NestedPatternBraces.juvix remove ≔ from the language and replace it by := (#1563) 2022-09-30 10:55:32 +10:00
NoNamedArguments.juvix Record updates (#2263) 2023-08-07 12:35:36 +02:00
NotARecord.juvix Record updates (#2263) 2023-08-07 12:35:36 +02:00
NotInScope.juvix Rename MiniJuvix to Juvix (#259) 2022-07-08 13:59:45 +02:00
PragmasFormat.juvix Add: pragma support (#1997) 2023-04-26 15:26:13 +02:00
PragmasYAML.juvix Iterator syntax (#2126) 2023-05-30 15:30:11 +02:00
QualSymNotInScope.juvix Rename MiniJuvix to Juvix (#259) 2022-07-08 13:59:45 +02:00
RepeatedNameSignature.juvix Named arguments (#2250) 2023-07-18 10:32:34 +01:00
Tab.juvix Disallow tab characters as spaces (#1523) 2022-09-07 13:59:41 +02:00
UnexpectedArgument.juvix Named arguments (#2250) 2023-07-18 10:32:34 +01:00
UnexpectedArgumentWildcard.juvix Named arguments (#2250) 2023-07-18 10:32:34 +01:00
UnexpectedFieldUpdate.juvix Record updates (#2263) 2023-08-07 12:35:36 +02:00
UnusedOperatorDef.juvix Add syntax keyword (#2107) 2023-05-22 12:50:07 +02:00
WrongModuleName.juvix Rename MiniJuvix to Juvix (#259) 2022-07-08 13:59:45 +02:00