Change Log - @typespec/compiler

1.6.0

Features

#8868 [API] Add new createAddDecoratorCodeFix function to help generating a codefix to add a decorator to a target node.
#8580 Add support for @minValue, @maxValue and their exclusive variant for datetime and duration types. Expose as well the following APIs
- getMinValueForScalar
- getMaxValueForScalar
- getMinValueExclusiveForScalar
- getMaxValueExclusiveForScalar
#8938 [API] Add repository field to PackageJson type

Bump dependencies

#8823 Upgrade dependencies

Bug Fixes

#8792 Compiler internal decorators shouldn't be listed in autocomplete
#8733 Fix issue where namespace with same name but different parent would get merged together when under a file namespace scope.
#8698 [TM Grammar] Fix issue with directive used after decorators
#8751 Correctly report error when trying to reference member of template without using the arguments
#8780 Fix missing examples in OpenAPI when response uses union of unions
#8676 Addressed an issue where applying the Update visibility transform would not correctly rename nested models.
#8687 Fix go to definition for directory imports
#8681 Addressed a bug that could cause duplicate @encodedName applications to be detected when none actually exist.

1.5.0

Features

#8549 [Testing API] Expose marker position in Tester
#8491 Add milliseconds to DurationKnownEncoding
#7929 [LSP] Allow configuring which file names to use as entrypoints
#8525 [API] Expose applyCodeFix and createSuppressCodeFix
#8652 [API] Export getNodeForTarget in @typespec/compiler/ast exports
#8542 [API] Expose applyCodeFixEdits, resolveCodeFix
#8544 [api] adds the ability to pass the suppression message
#8632 [API] Allow using union in emitter schemas
#8586 Widen target types for the @secret decorator to include Model, Union, and Enum types, in addition to existing Scalar and ModelProperty targets. This allows marking any data type as secret for comprehensive data sensitivity handling.
#8055 Show template parameters default in hover signature
#8234 Support codefix on different file and creating file when needed
#8670 [Tester] Support sub exports without having them being defined as separate libraries

Bug Fixes

#8506 Fix issue when the 'entrypoint' setting is default to null
#8462 Fix grammar error in TypeSpec unused-using warning message by removing incorrect word "be" from "never be used"
#8548 Linter rule tester not passing parseDocs option to new tester instance
#8578 Add suppression codefix looks up for the first valid parent
#8452 [Tester] Fix issue that could cause some timeout
#8573 LSP connection failure after dynamically loading a certain library in the package
#8670 Allow importing of self (e.g. @typespec/openapi/some/path when in @typespec/openapi) respecting ESM spec.

1.4.0

Features

#4383 Expose createSourceLoader via @typespec/compiler/ast

Bump dependencies

#8317 Upgrade dependencies

Bug Fixes

#8386 fixed a bug where max/min Items could not be used in combination with a nullable type
#8152 Remove incorrect example of service option model from documents

1.3.0

Features

#7830 [API] resolveCompilerOptions now only takes a SystemHost instead of CompilerHost
#7912 Updates the tsp init command to support passing in more options via CLI flags. The -y option can also be used to auto accept prompts.

Bump dependencies

#7978 Upgrade dependencies

Bug Fixes

#7721 Make the console.* methods usable in the compiler and display them in the vscode output.
#8012 Fix tsp format --check incorrectly validating needs format
#7957 Fix incorrectly reported incompatible-compiler-version in some cases when using symlinks
#7947 [API] [Testing] Ignore test files in legacy library definition
#7899 Ensure model that are spread, intersected or used as the base are fully checked before trying to copy the properties
#8002 Union expression are correctly attached to the namespace they were declared in

1.2.0

Features

#7576 Allow LSP to configure which emitters to include for live checks
#7151 [API] Addition of a new testing framework. See https://typespec.io/docs/extending-typespec/testing

Bump dependencies

#7674 Upgrade dependencies

Bug Fixes

#7586 Improved the error message for the @pattern decorator when applied to a union type. The new message is more descriptive and helps users understand how to correctly define string-compatible union types.
#7740 Config interpolation is more flexible in interpolating variables in any order as long as no circular reference occur. For example using {output-dir} in parameters.
#7731 Fix literal typekits $.literal.create, $.literal.createString, etc. use right checker api that include caching
#7906 Corrected some logic around the detection of array types in visibility calculation.

1.1.0

Features

#7377 Add a --stats flag to tsp compile to log some performance and complexity statistics
#7530 Show the full definition of model and interface when it has 'extends' and 'is' relationship in the hover text
#6923 Init templates can define a project kind which decide if dependencies are added to peer or regular dependencies
#6783 Install packages for unrecognized import via npm command
#7239 [LSP] Expose new compile project command
#7137 Allow passing template parameters as property defaults
#7256 Expose VisibilityFilter.toCacheKey to allow caching results based on visibility filters.

Bump dependencies

#7323 Upgrade dependencies

Bug Fixes

#7421 Fix hanging when using ::returnType meta accessor on operation defined with op is
#7507 Fix empty string emitting error when used in string interpolation in a template
#7524 Fixes an error where reported diagnostics had invalid relative paths on Windows
#7508 Allow extends of array expression for not just template (model MyStrings extends string[])
#7473 Mutator were not mutating tuple values
#7485 Fix paging operations to correctly detect the @pageItems decorator on base models.
#7461 Remove non documented templateArguments property on types
#7480 Fix infinite recursion when navigating paging properties by detecting and handling circular model references.
#7137 Allow passing tempalate parameter values in object and array values used inside the template
#7295 Corrected visibility filtering logic to even more aggressively deduplicate the models it visits when the applied visibility transform does not actually remove any properties from a model.

1.0.0

Features

#7199 Add "capitalize" string helper to compiler
#7180 Add support for formatting tspconfig.yaml with tsp format
#7180 tsp format only formats files it knows about and ignores other. Allowing a more generic glob pattern tsp format . or tsp format "**/*"
#5674 [LSP] Update imports when renaming typespec files
#7125 Adds typekits for getting intrinsic types via $.intrinsic.<type>
#7204 Update typekits is* methods to accept Entity instead of just Type or Value
#7108 Adds support for nesting typekits
#7202 Replaces $.model.getSpreadType with $.model.getIndexType to better reflect what it actually being returned. getSpreadType did not actually return a list of spread types, but the model's indexer type instead.
#7090 Adds TypeKit support for type.inNamespace to check namespace membership
#7167 Adds $.value.resolve and $.type.resolve typekits, and updated $.resolve to return values or types, instead of just types
#7106 Adds $.type.isAssignableTo, $.value.isAssignableTo and $.entity.isAssignableTo typekits. Also registers $.resolve typekit
#7193 Typekits have been moved out of experimental and can now be accessed via the @typespec/compiler/typekit submodule. This also removed the $.type.getDiscriminator typekit in favor of the $.model.getDiscriminatedUnion and $.union.getDiscriminatedUnion typkits.
```
-import { $ } from "@typespec/compiler/experimental/typekit";
+import { $ } from "@typespec/compiler/typekit";
```
#7105 Add typekit support for creating a union from an array of children
#7207 Exposed experimental function isMutableType as unsafe_isMutableType.
#7200 Added an optional nameTemplate argument to @withVisibilityFilter, allowing the visibility filters to rename models as they are transformed. This template is applied by default in the Create, Read, Update, Delete, and Query visibility transform templates. This allows for more flexible renaming than simply using the @friendlyName decorator, as it will change the primary name of the transformed type, reducing the incidence of naming conflicts.

Cached the result of applying visibility filters to types. If the same visibility filter is applied to the same type with the same configuration, the model instance produced by the visibility filter will be object-identical. This should reduce the incidence of multiple models that are structurally equivalent in visibility filters and conflicts over the name of models.

Bug Fixes

#7183 Fix decorators on model properties getting wrongly called when checking the template declaration in the following cases
- inside a union expression
- under an non templated operation under a templated interface
#6938 Fixes template argument resolution when a default template parameter value is resolved by a parent container (e.g. interface) For example:
```
interface Resource<T> {
  read<U = T>(): U;
}

model Foo {
  type: "foo";
}

alias FooResource = Resource<Foo>;

op readFoo is FooResource.read;
```
The returnType for readFoo would be model Foo. Previously the returnType resolved to a TemplateParameter.
#7153 Fixes handling of nested templates in getPlausibleName
#6883 Realm handle multiple instance of compiler loaded at once
#7222 Remove version property on ServiceOptions passed to @service decorator. That handling of that option was removed in 1.0.0-rc.0 where it was previously deprecated. If wanting to specify version in an OpenAPI document use the @OpenAPI.info decorator from the @typespec/openapi library
#7155 Mark TemplateParameter type as an experimental type
#7106 Removes program.checker.isTypeAssignableTo. Use one of the following typekits instead:
- $(program).type.isAssignableTo
- $(program).value.isAssignableTo
- $(program).entity.isAssignableTo
#7207 Weakened rules around @mediaTypeHint decorator, allowing media type hints with suffixes like "application/merge-patch+json".
#7200 Fixed an error in Model visibility filtering where the indexer of a model was ignored. This prevented the value of Array/Record instances from being transformed correctly, as they now should be.

1.0.0-rc.1

Features

#7067 Adding support for nested paging properties.
#6862 --trace cli option applies to all commands now
#7065 Adds a TypeKit for Tuple types
#7049 Adds a new createDiagnosable typekit helper for APIs that return diagnostics
#7018 Removes the default typekit in favor of always instantiating typekits with either a program or realm.
#7047 Adds typekit support for creating unions from enums

Bug Fixes

#6897 Improve errors when loading libraries with invalid exports/main fields
#7069 Mark node property on all typespec types as optional
#7063 Fixes an issue where isError was checking for error types instead of error models.
#7047 Preserve API documentation when calling $.enum.createFromUnion

1.0.0-rc.0

Breaking Changes

#6678 Moved TypeSpecPrettierPlugin type to internal. If wanting to use the prettier pluging programmatically, use it from the @typespec/prettier-plugin-typespec package

#6544 Remove deprecated @typespec/compiler/emitter-framework export in favor of a new package @typespec/asset-emitter

"dependencies": {
+   "@typespec/asset-emitter": "^0.68.0"
}

-import { TypeEmitter, ... } from "@typespec/compiler/emitter-framework";
+import { TypeEmitter, ... } from "@typespec/asset-emitter";

#6754 Reserve additional keywords:
- context
- sym
- prop
- property
- scenario

Bump dependencies

#6595 Upgrade dependencies

Bug Fixes

#6197 Show emitter internal error message in tspconfig
#6710 Updates to scaffolding script and scaffold commands for consistency
#6826 Fix new reserved keywords were not allowed in augment decorator expression
#6697 Fix crash that would happen when a type was mutated while using null in a decorator(e.g. when using versioning library with @example(null))
#6711 Fix extra properties not validated in nested entries of the config
#6711 Fix passing nested emitter options with --option

0.67.2

Bug Fixes

#6648 Fix tsp install broken in standalone CLI

0.67.0

Breaking Changes

#6231 Remove deprecated items:
- @deprecated decorator, use #deprecated directive instead
```
- @deprecated("Message")
+ #deprecated "Message"
```
- @service versions support. Either migrate to @OpenAPI.info or the versioning library
```
- @service({version: "1.0"})
+ @service
+ @OpenAPI.info(#{version: "1.0"})
```
- Removed @knownValues. Use a union with a string variant instead
```
- enum MyKnownValues {a, b}
- @knownValues(MyKnownValues)
- scalar Custom extends string;
+ union Custom {
+   "a", "b", string
+ };
```
- Removed @projectedName Migrate to @encodedName instead.
```
- @projectedName("json", "nbf")
+ @encodedName("application/json", "nbf")
notBefore: int32;
```
- CLI configuration value output-path, use output-dir instead.
- Support for cadlMain in package.json. Migrate to exports["."].tsp instead.
```
- "cadlMain": "lib/main.tsp",
+ "exports": {
+   ".": {
+     "tsp": "lib/main.tsp"
+   }
+ }
```
- Compiling .cadl files, use .tsp instead.
- decoratorArgMarshalling flag in $flags was removed and support for the legacy decorator arg marshalling.
- Using @format on bytes. @format can only be used on string where it defines a known pattern for the string.
- Javascript functions and typescript types:
  - stringTemplateToString
  - CadlLanguageConfiguration
  - CadlPrettierPlugin
  - NodePackage -> PackageJson
  - CadlValue -> TypeSpecValue
  - createCadlLibrary -> createTypeSpecLibrary
  - setCadlNamespace -> setTypeSpecNamespace
  - CadlLibrary -> TypeSpecLibrary
  - SyntaxKind.CadlScript -> SyntaxKind.TypeSpecScript
  - isCadlValueTypeOf -> isTypeSpecValueTypeOf
  - cadlTypeToJson -> typespecTypeToJson
  - checkFormatCadl -> checkFormatTypeSpec
  - cadlVersion -> typespecVersion
  - CadlManifest -> TypeSpecManifest
  - validateDecoratorTargetIntrinsic -> Use extern dec to define the signature of decorators instead
  - validateDecoratorParamType -> Use extern dec to define the signature of decorators instead
  - createDecoratorDefinition -> Use extern dec to define the signature of decorators instead
  - CompilerOptions#emitters -> Use emit and options field instead.
  - Type#templateArguments -> Use templateMapper instead.
  - ModelProperty#default -> Use defaultValue instead.
  - Union#options -> Use variants instead.
  - linter in createTypeSpecLibrary -> Use export const $linter = defineLinter({ ... }) instead.
  - Accessor for removed @knownValues decorator
    - getKnownValues
  - Accessor for removed @projectedName decorator
    - getProjectedNames
    - getProjectedName
    - hasProjectedName
#6323 Move AST related APIS to @typespec/compiler/ast package. This is to mark a clear separation for the AST types and APIs which are considered for advanced usage and might change at any time.
- All *Node types
- exprIsBareIdentifier
- getFirstAncestor
- getIdentifierContext
- getNodeAtPosition
- getNodeAtPositionDetail
- hasParseError
- isImportStatement
- parse
- parseStandaloneTypeReference
- positionInRange
- visitChildren
#6323 Stop exposing APIs that were not meant for external users. Please file issue if you had legitmate use of some of those APIs.
Checker: The check itself should be used very carefully and its wouldn't be covered under the compatibility guarantees. There is some apis that were explicitly marked as internal while other remained until we provide a better way to do the same thing:
- getGlobalNamespaceType(); -> program.getGlobalNamespaceType();
- resolveTypeReference(); -> program.resolveTypeReference();
- checkProgram(); This isn't meant to be used by external users.
- getLiteralType() This isn't meant to be used by external users.
- resolveRelatedSymbols() This isn't meant to be used by external users.
- resolveCompletions() This isn't meant to be used by external users.
Program: Exposed functions on the program are safe to use but a few have been updated to be internal:
- mainFile -> Use projectRoot instead.
- literalTypes This isn't meant to be used by external users.
- checker: This is still exposed but to be used carefully, see above.
- loadTypeSpecScript: This isn't meant to be used by external users.
- onValidate: This isn't meant to be used by external users.
- reportDuplicateSymbols: This isn't meant to be used by external users.
logVerboseTestOutput Internal test util, not meant for external users
validateDecoratorTarget -> migrate to extern dec declaration
validateDecoratorParamCount: Same as above
altDirectorySeparator: Internal path utils
directorySeparator: Internal path utils
isIntrinsicType: Internal check
getFullyQualifiedSymbolName Symbols are an internal aspect of the compiler
Scanner related APIs:
- createScanner
- isComment
- isKeyword
- isModifier
- isPunctuation
- isStatementKeyword
- isTrivia
- skipContinuousIdentifier
- skipTrivia
- skipTriviaBackward
- skipWhiteSpace
- Token
- TokenFlags
- typeDocToken,
- typeScanner,
- typeStringTemplateToken,
Types
- Sym Symbols are an internal aspect of the compiler
- SymbolLinks Symbols are an internal aspect of the compiler
- SymbolTable Symbols are an internal aspect of the compiler
- SymbolFlags Symbols are an internal aspect of the compiler
- MutableSymbolTable Symbols are an internal aspect of the compiler
- ResolutionResult Internal type used in non exposed resolver
- NodeLinks Internal type used in non exposed resolver
- ResolutionResultFlags Internal type used in non exposed resolver
- MetaMemberKey Unused type
- MetaMembersTable Unused type
- Dirent Unused type
#5977 Minimum node version is now 20
#6410 Remove a legacy behavior of resolving package names which wasn't inline with node ESM module resolution.

For example if you were running tsp compile within your node_modules folder(on a test package) and referencing your emitter by name you might need to change this
```
-tsp compile . --emit my-emitter
+tsp compile . ../../  # path to your emitter root instead
```

#6286 Removed deprecated use of @discriminator on union. Migrate to @discriminated

-@discriminator("type")
+@discriminated(#{envelope: "none", discriminatorPropertyName: "type"})
union Pet;

#6327 Remove projection. Projection was an experiemental syntax that was too flawed to be included in 1.0 in that current state.
#6388 Remove deprecated type to value conversion. Since the introductions of object values(#{}) and array values(#[]) using model expressions or tuple where values were expected has been deprecated. It is now an error with a codefix.
```
-@service({title: "My service"})
+@service(#{title: "My service"})
```
#6416 Adding new keywords for future use:
- statemachine
- macro
- package
- metadata
- env
- arg
- declare
- array
- struct
- record
- module
- mod
- pub
- sub
- typeref
- trait
- this
- self
- super
- keyof
- with
- implements
- impl
- satisfies
- flag
- auto
- partial
- private
- public
- protected
- internal
- sealed
- local
- async
#6258 Removed deprecated legacy visibility APIs and converted all warnings for using string-based visibility modifiers to errors.

The removed APIs include:

getVisibility: use getVisibilityForClass instead.
getParameterVisibility: use getParameterVisibilityFilter instead.
getReturnTypeVisibility: use getReturnTypeVisibilityFilter instead.

Furthermore, the legacy signature of isVisible that accepts an array of strings has been removed. Please use the new signature that accepts EnumMember instead.

The changed decorators include:

@visibility
@parameterVisibility
@returnTypeVisibility
@withVisibility
@withDefaultKeyVisibility

The TypeSpec.DefaultKeyVisibility template also no longer accepts a string as a visibility modifier argument.

Attempting to pass a string to any of the above decorators or templates will now result in a type-checking error. Please use the Lifecycle visibility modifiers instead.

If you develop a third-party library and you use any custom visibility modifiers, you will need to instead define a visibility class enum. See: Visibility | TypeSpec.

Migration steps:

String-based visibilities can be replaced as follows:

"create", "read", "update", "delete", and "query" can be replaced with Lifecycle.Create, Lifecycle.Read, Lifecycle.Update, Lifecycle.Delete, and Lifecycle.Query respectively.
@visibility("none") can be replaced with @invisible(Lifecycle).

For example:

@visibility("create", "read")
example: string;

can be replaced with:

@visibility(Lifecycle.Create, Lifecycle.Read)
example: string;

@visibility("none")
example: string;

can be replaced with:

@invisible(Lifecycle)
example: string;

Additionally, @parameterVisibility with no arguments has been made an error. Previously, some specifications used it to disable effective PATCH optionality, but that behavior was an unintended side effect. For example:

@parameterVisibility
@patch
op example(@bodyRoot resource: Resource): Resource;

If you wish to disable effective PATCH optionality in @typespec/http, preventing it from treating all properties of the request body as effectively optional, you can now do so explicitly:

@patch(#{ implicitOptionality: false })
op example(@bodyRoot resource: Resource): Resource;

Deprecations

#6310 Deprecate @typespec/compiler/emitter-framework export in favor of a new package @typespec/asset-emitter

"dependencies": {
+   "@typespec/asset-emitter": "0.67.0"
}

-import { TypeEmitter, ... } from "@typespec/compiler/emitter-framework";
+import { TypeEmitter, ... } from "@typespec/asset-emitter";

#6306 Remove the use of deprecated getDiscriminatedUnion

Features

#6178 Introducing the JS Http Client emitter
#6411 Introduce a new dryRun compiler option(--dry-run in the cli) that emitters can opt-in to support by setting capabilities.dryRun in their $lib.
#6411 Update noEmit compiler option (--no-emit cli flag) to prevent emitter to run. A new dryRun option has been added to achieve a safer similar result where emitters run but do not write output.
#6220 tsp install now downloads and uses the configured package manager in devEngines.packageManager or packageManager field of package.json
#6357 Add support for @mediaTypeHint to apply a hint for default Media/MIME type (Content-Type in HTTP) to a TypeSpec type.

Bump dependencies

#6266 Update dependencies

Bug Fixes

#6335 Improvements to the CLI output
#6315 Fix auto complete cannot replace $ prefix
#6309 Fixed an issue where the --emit-files flag on emitters with nested folders was not generating the correct paths to the files.
#6292 Fix tsp init not respecting default selected emitters

0.66.0

Deprecations

#6059 Deprecate use of @discriminator on union. Migrate to @discriminated

-@discriminator("type")
+@discriminated(#{envelope: "none", discriminatorPropertyName: "type"})
union Pet;

#6088 Deprecate use of string-based visibility modifiers using warnings.

String-based visibilities can be replaced as follows:

"create", "read", "update", "delete", and "query" can be replaced with Lifecycle.Create, Lifecycle.Read, Lifecycle.Update, Lifecycle.Delete, and Lifecycle.Query respectively.
@visibility("none") can be replaced with @invisible(Lifecycle).

For example:

@visibility("create", "read")
example: string;

can be replaced with:

@visibility(Lifecycle.Create, Lifecycle.Read)
example: string;

@visibility("none")
example: string;

can be replaced with:

@invisible(Lifecycle)
example: string;

Additionally, @parameterVisibility with no arguments is deprecated.

@parameterVisibility
@patch
op example(@bodyRoot resource: Resource): Resource;

The effect of @parameterVisibility is to disable effective PATCH optionality. If you wish to disable effective PATCH optionality in @typespec/http, preventing it from treating all properties of the request body as effectively optional, you can now do so explicitly:

@patch(#{ implicitOptionality: false })
op example(@bodyRoot resource: Resource): Resource;

#6108 Migrate @service decorator options to take in a value

-@service({title: "My service"})
+@service(#{title: "My service"})

#6047 --version shows if tsp is running from the standalone version
#5453 Report unused using in language server
#6164 Renamed package @typespec/http-server-javascript to @typespec/http-server-js.

Features

#5483 Add autocomplete of model properties for union type
#5458 Add codefix for for various triple quoted string syntax issues
#6082 Introduced list-files flag to log all emitted files.
#6082 Added a progress indicator to show the current stage of tsp compilation process.
#6059 Add new @discriminated decorator to represent discriminated union with implicit envelopes
#5494 Report unused template parameters in language server
#6045 Redesign and simplification of tsp init
#5996 Add Typekits to support EFV2
#5986 Tsp init template with both config and emitters merge in tspconfig.yaml

Bug Fixes

#4926 Augmenting an expression will now report an error instead of silently failing to apply.
#5937 Fix: StringTemplate type not supported in typespecValueToJson
#6204 Fix @example reporting assignability error when using mix metadata(http) models
#6125 Fix tmlanguage syntax highlighting when using decorator before escaped identifier
#6192 Fix tsp info crash
#6203 Fix mutator not mutating sourceModel(s)

0.65.3

Bug Fixes

#6041 Fix validation issue in @opExample when using versioning/mutators

0.65.2

Bug Fixes

#6003 Fix regression where enum values would report not being assignable to their enum when using versioning

0.65.1

Bug Fixes

#5975 Downgrade arborist dependency which added node20+ requirement

0.65.0

Bug Fixes

#5940 Fix: Infinite loop in language server due to not caching indeterminate entities in templates
#5186 Fix issue that extra " will be added when auto completing emitter options inside ""
#5833 Fix tracing in SourceLoader

Bump dependencies

#5690 Upgrade dependencies

Features

#5572 Add support for ESM subpath imports
#5790 Add option for semantic walker to visit model derived types
#5340 Add Experimental Typekit helpers for @typespec/http
#5716 Updated Rest init template to include additional emitters(client, server) and a basic sample.
#5186 Support the auto completion for extends, imports, rule, rule sets and variables in tspconfig.yaml
#5186 Show required/optional information in the details of emitter's options completion item in tspconfig.yaml
#5342 Convert model/tuple expression to value code fix is applied to the entire value.
#5699 Promote unsafe_useStateMap and unsafe_useStateSet experimental APIs to stable version useStateMap and useStateSet. Old ones are deprecated
#5794 Use local version of npm to manage dependencies when running tsp install
#5824 tsp init will not automatically run tsp install if a package.json file is created.
#4931 [Experimental] Update to subgraph mutator to visit all missing relations
#5416 Added APIs for getting parameterVisibility and returnTypeVisibility as VisibilityFilter objects.

Deprecations

#4931 Deprecate experimental projection.

0.64.0

Bug Fixes

#5295 Fix incorrectly returning a positive BigInt for a negative Numeric.
#5353 Meta property are auto-completed, current only supported '::type', '::parameters', '::returnType'
#5180 Fixed serialization of object examples on unions
#5525 Enum-driven visibility decorators and projections now interact correctly.

Projections now project EnumValue values to preserve consistency with projected Enum/EnumMember types using a best-effort strategy.

Features

#5415 Added support for emitter selections for init template.
#5316 Compiler trace will be sent to IDE as trace log through language server
#5594 Support Emitters section in Init Template when creating TypeSpec project in vscode
#5294 Add capacities in TypeSpec Language Server to support "Scaffolding new TypeSpec project" in IDE

0.63.0

Bug Fixes

#5252 Added RegEx validation for @pattern and will throw warning for invalid RegEx string

Features

#4937 Add mutateSubgraphWithNamespace as a separate API
#4837 Allow trailing delimiter in array values, tuple, decorator declaration, scalar initializer, etc.
#5149 Experimental: Improve Realm, Mutator, and Typekit implementations.

This change strongly binds a Realm and Typekit together, and changes mutators so that new types are cloned within the mutator's realm. The default Typekit now creates a default typekit realm for the current program, and a Typekit can be easily created to work in a specific Program or Realm as needed.

#4825 Adds support for enum-driven visibility in the compiler core.

0.62.0

Bug Fixes

#4745 Improve diagnostic when JS files fail to load due to a JS error

Bump dependencies

#4679 Upgrade dependencies - October 2024

Features

#4807 CLI logs diagnostic source path relative to the CWD.
#4871 [experimental] Mutators: Allow mutating namespaces
#4470 Add support for paginated operations
#4849 Overall of the symbol resolution. TypeSpec is able to resolve anything that can be statically linked. Augment decorators in turn are able to target any statically linkable types.
#4806 Diagnostics emitted in template instance include instantiation trace.
#4790 Support completion for tspconfig.yaml file in vscode

0.61.2

Bug Fixes

#4704 Fix order of resolution from node_modules and parent package

0.61.1

Bug Fixes

#4697 Fix module resolution when resolving self from within another package

0.61.0

Bug Fixes

#4626 [API] Add missing exit callback
#4513 Fixes issue with the semantic walker where exitTuple was not being emitted.
#4462 Fix examples with enums inside of unions
#4574 Fix: Passing const of model type to @example
#4551 Json serialization of example respect @encodedName
#4514 Fix issue with decimal numeric and leading 0.0 with multiple digit
#4445 [API] model sourceModels property are now projected correctly
#4467 Changing tspconfig.yaml won't take effect in LSP server because of the cache
#4563 tsp compile --watch reread from tspconfig.yaml file

Bump dependencies

#4424 Bump dependencies

Features

#4442 Library diagnostic can now define a description and url that links to a more detailed doc for this diagnostic
#4290 Adding experimental (unstable) API fro Type Mutators
#4595 Expose more accurate PackageJson type and deprecate NodePackage
#4606 Add support for node exports field. Specific typespec exports can be provided with the typespec field

"exports": {
  ".": {
    "typespec": "./lib/main.tsp",
  },
  "./named": {
    "typespec": "./lib/named.tsp",
  }
}

#4539 Support nested emitter options

Breaking Changes

#4539 Config parameters and emitters options cannot contains .. This conflict with newly added support for nested options.
#4500 API: Update default of decoratorArgMarshalling from legacy to new

To revert to the old behavior export the following. Highly discouraged, this will be removed in a few versions.

export const $flags = definePackageFlags({
  decoratorArgMarshalling: "legacy",
});

0.60.1

Bug Fixes

#4420 Fix: Numeric values defined with e-notation incorrectly resolved

0.60.0

Bug Fixes

#4381 Fix Semantic walker doesn't fire exitOperation or exitModelProperty
#4146 Fix model expression defined in alias will resolve its namespace from the namespace where the alias was declared
#4147 Fix examples with models using extends
#4144 Fix: Model and union expression in template were not considered as template instances
#4135 Fix numeric 0 stringify producing 0.0
#4064 IDE: Formatting command will use prettier config if provided over the editor's configuration.
#4089 Fix tmlanguage for named type argument in type reference.
#4324 API: Extract source resolution logic into its own source loader

Features

#4139 Add new way to define decorator implementation with $decorators export.

export const $decorators = {
  "TypeSpec.OpenAPI": {
    useRef: $useRef,
    oneOf: $oneOf,
  },
};

#4148 Diagnostics logged to the terminal now have a clickable hyperlink to the diagnostic documentation url if applicable.
#4141 Diagnostic code in IDE now link to the linter rule documentation url if applicable
#4357 Improvements to type relation errors: Show stack when it happens in a nested property otherwise show up in the correct location.

0.59.1

Bug Fixes

#4173 Fix: Revert unix-style warning that was preventing windows path via the CLI as well

0.59.0

Bug Fixes

#3881 Fixes a bug where ending a non-terminal line in a multi-line comment with a backslash caused the next star to show up in the parsed doc string.

#4050 Allow using compact namespace form Foo.Bar when inside another namespace

namespace MyOrg.MyProject {
  namespace MyModule.MySubmodule { // <-- this used to emit an error
    // ...
  }
}

#3898 Fix decimal numeric with leading zeros
#4046 Fix type comparison of literal and scalar when in projection context
#4022 tsp compile --watch will not stop when a crash happens during compilation
#3933 Add const template parameter to get the precise lib type

Bump dependencies

#3948 Update dependencies

Features

#3906 Support completion for template parameter extending model or object value

Example

model User<T extends {name: string, age: int16}> {
}
alias user = User< {┆
                    | [age]
                    | [name]

#4020 Add support for encoding numeric types as string
#4023 Warn when using \ in config file field that expect a path.
#3932 Add ArrayEncoding enum to define simple serialization of arrays

Breaking Changes

#4050 Fix issue where naming a namespace with the same name as the blockless namespace would merge with it instead of creating a subnamespace like any other name would.
```
namespace MyOrg.MyProject;

namespace MyOrg.MyProject.MyArea {
  model A {}
}

namespace MyArea2 {
  model B {}
}
```
Previously model A would end-up in namespace MyOrg.MyProject.MyArea and model B in MyOrg.MyProject.MyArea2. With this change model A will now be in MyOrg.MyProject.MyOrg.MyProject.MyArea. To achieve the previous behavior the above code should be written as:
```
namespace MyOrg.MyProject;

namespace MyArea {
  model A {}
}

namespace MyArea2 {
  model B {}
}
```

0.58.1

Bug Fixes

#3875 Fix issues with examples not working with Array, Record, Union and unknown types

0.58.0

Bug Fixes

#3623 Fix crash of language server on firefox
#3516 Deprecate getAssetEmitter and recommend calling createAssetEmitter directly
#3767 Fix semantic highlighting of using of single namespace
#3824 Do not cast model expression to object value if the constraint is allowing the type
#3577 Fix formatting of object and array literal in decorator to hug parenthesis
#3823 Fix formatting of scalar constructor called with no args
#3743 Fix 'typespec vs install' command on windows
#3605 Fix templates initialized on node 22

Bump dependencies

#3718 Dependency updates July 2024

Features

#3699 Moved compiler dependencies to peer and dev for scaffolded projects.

#3572 Add new @example and @opExample decorator to provide examples on types and operations.

@example(#{
  id: "some",
  date: utcDateTime.fromISO("2020-01-01T00:00:00Z"),
  timeout: duration.fromISO("PT1M"),
})
model Foo {
  id: string;
  date: utcDateTime;

  @encode("seconds", int32) timeout: duration;
}

@opExample(
  #{
    parameters: #{
      pet: #{
        id: "some",
        name: "Fluffy",
        dob: plainDate.fromISO("2020-01-01"),
      },
    },
    returnType: #{
      id: "some",
      name: "Fluffy",
      dob: plainDate.fromISO("2020-01-01"),
    },
  },
  #{ title: "First", description: "Show creating a pet" }
)
op createPet(pet: Pet): Pet;

#3751 Adds option to tsp init to generate .gitignore file

Breaking Changes

#3793 Do not carry over @friendlyName with model is or op is

@friendlyName("Abc{T}", T)
model Foo<T> {}

model Bar is Foo<string>;

// This can be changed to
model Abcstring is Foo<string>;

#3659 Disallows overriding a required inherited property with an optional property.

In previous versions of TypeSpec, it was possible to override a required property with an optional property. This is no longer allowed. This change may result in errors in your code if you were relying on this bug, but specifications that used this behavior are likely to have been exposed to errors resulting from incoherent type checking behavior.

The following example demonstrates the behavior that is no longer allowed:

model Base {
  example: string;
}

model Child extends Base {
  example?: string;
}

In this example, the Child model overrides the example property from the Base model with an optional property. This is no longer allowed.

0.57.0

Breaking changes

#3022 Addition of new const keyword means using const as a property name or decorator name will result in an error. This can be fixed by wrapping the property in backtick.

model Test {
  // error
  const: string;

  // correct
  `const`: string;

}

Bug Fixes

#3399 Preserve leading whitespace in fenced blocks in doc comments
#3566 [API] Do not run decorators on cloned type if the original type wasn't finished
#3522 Fix EINVAL error when running tsp code install
#3371 Numeric not handling trailing zeros and causing freeze(e.g. const a = 100.0)
#3451 Emitter framework: fix losing context when referencing circular types
#3517 Fix application of @param doc tag on operation create with op is to override upstream doc
#3488 Add PickProperties type to dynamically select a subset of a model

Bump dependencies

#3401 Update dependencies - May 2024

Features

#3280 Support completion for Model with extended properties

Example

model Device {
  name: string;
  description: string;
}

model Phone extends Device {
  ┆
} | [name]
  | [description]

#3280 Support completion for object values and model expression properties.

Example

model User {
  name: string;
  age: int32;
  address: string;
}

const user: User = #{name: "Bob", ┆}
                                  | [age]
                                  | [address]

#3375 Allow @ to be escaped in doc comment with \
#3022 Add syntax for declaring values. See docs.

Object and array values

@dummy(#{
  name: "John",
  age: 48,
  address: #{ city: "London" }
  aliases: #["Bob", "Frank"]
})

Scalar constructors

scalar utcDateTime {
  init fromISO(value: string);
}

model DateRange {
  minDate: utcDateTime = utcDateTime.fromISO("2024-02-15T18:36:03Z");
}

#3527 Add support for @prop doc comment tag to describe model properties
#3422 Formatter: Indent or dedent multiline strings to the current indentation
#3460 Hide deprecated items from completion list

#3443 Support completion for keyword 'extends' and 'is'

Example

model Dog ┆ {}
          | [extends]
          | [is]

scalar Addresss ┆ 
                | [extends]

op jump ┆ 
        | [is]

interface ResourceA ┆ {}
                    | [extends]

model Cat<T ┆> {}
            | [extends]

#3462 Linter all rulesets is automatically created if not explicitly provided
#3533 More logs and traces are added for diagnostic and troubleshooting in TypeSpec language server

Deprecations

#3022 Using a tuple type as a value is deprecated. Tuple types in contexts where values are expected must be updated to be array values instead. A codefix is provided to automatically convert tuple types into array values.

model Test {
  // Deprecated
  values: string[] = ["a", "b", "c"];
  
  // Correct
  values: string[] = #["a", "b", "c"];

#3022 Using a model type as a value is deprecated. Model types in contexts where values are expected must be updated to be object values instead. A codefix is provided to automatically convert model types into object values.

model Test {
  // Deprecated
  user: {name: string} = {name: "System"};
  
  // Correct
  user: {name: string} = #{name: "System"};

#3022 Decorator API: Legacy marshalling logic

With the introduction of values, the decorator marshalling behavior has changed in some cases. This behavior is opt-in by setting the valueMarshalling package flag to "new", but will be the default behavior in future versions. It is strongly recommended to adopt this new behavior as soon as possible.

Example:

extern dec multipleOf(target: numeric | Reflection.ModelProperty, value: valueof numeric);

Will now emit a deprecated warning because value is of type valueof string which would marshall to Numeric under the new logic but as number previously.

To opt-in you can add the following to your library js/ts files.

export const $flags = definePackageFlags({
  decoratorArgMarshalling: "new",
});

0.56.0

Bug Fixes

#3170 --nostdlib flag will now work by only applying to optional standard library types
#3212 Fix: augmenting template model property could result in sending invalid argument to decorator
#3188 Fix: Do not crash when trying to access member of aliased expressions
#3185 Fix tsp init hanging when done due to unclosed connection
#3151 IDE: Fix completion of statement keywords
#3287 Templated interface extending another templated interface shouldn't run decorator on their operations
#3290 Model with an optional property should not satisfy a constraint with that property required. ({foo?: string} cannot be assigned to a constraint of {foo: string})
#3163 Fix: Model with spread indexer shouldn't validate explicit properties
#3227 Stop running decorators on partially instantiated operations(When interface is instantiated but not the operation)
#3180 Fix issue where directives were not parsed to the leaf node in multi-segment Namespace segments.
#3243 Fix calling tsp install on windows due to recent NodeJS breaking change to fix vulnerability.
#3216 Fix compiler crash when using an invalid is target in an interface operation template
#3246 Internals: Use node built-in fetch API that is now stable since node 18.13.0

Bump dependencies

#3169 Update dependencies

Features

#3035 getEncode returns the fully qualified enum member name if using a custom enum.
#3183 Show template parameters when hovering on an operation template
#3191 [API] Add new sourceModels property to model

0.55.0

Bug Fixes

#3018 Grammar: Fix comments in template params not tokenized
#3052 Fix: Union template declaration were incorrectly being finished in projection
#2983 Warnings converted to error with warn-as-error do not prevent compilation from moving to the next stage like regular warnings
#3041 Improve relability of application of codefixes in IDE, often it would not do anything
#3069 TmLanguage: Fix tokenization of escaped identifiers, enums and unions

Bump dependencies

#3027 Update dependencies

Features

#2992 Enable the use of @encode for model properties that have a union type. This supports cases like @encode("rfc3339") prop: utcDateTime | null
#3053 Experimental projection: Add support for scalars

Deprecations

#3094 Deprecate @knownValues decorator. Use a named union of string literal with a string variant to achieve the same result without a decorator

Example:

-enum FooKV { a, b, c}
-@knownValues(FooKV)
-scalar foo extends string;
+union Foo { "a", "b", "c", string }

#2910 Deprecate @projectedName decorator. @encodedName should be used instead.

Example:

-@projectedName("json", "exp")
+@encodedName("application/json", "exp")

0.54.0

Bug Fixes

#2932 Report error when having a circular template constraint e.g. model Example<T extends T>
#2955 [Formatter] Formatting file with only comments would reorder the first line.
#2934 [IDE] Fix issue when deleting an open file outside the IDE that would crash the language server
#2959 Decorators that have missing arguments will not run. This is inline with passing invalid argument to a decorator that would prevent it from running.
#2976 [IDE] Fix type documentation shown twice when hovering symbols or in completion details.
#2929 [API] Add Scalar to TS TemplatedType type
#2978 [IDE] Go to imports
#2936 [IDE] Autocompleting file or folder with non alpha numeric charachter completes correctly
#2936 [IDE] Fix crashing when trying to autocomplete an invalid folder
#2951 Wrap string in quotes in errors
#2886 Fix: tsp compile --watch was missing coloring and error previews

Bump dependencies

#2900 Update dependencies

Features

#2888 Add support for codefixes
#2920 Add support for ...Record<T> to define the type of remaining properties
#2968 Any subtype of an error(marked with @error) is now an error.

Deprecations

#2919 [API] Create a new export @typespec/compiler/utils exports. Deprecate export from @typespec/compiler of utils like DuplicateTracker, Queue, createTwoKeyMap, etc.
#2902 Deprecate @service version property. If wanting to describe a service versioning you can use the @typespec/versioning library. If wanting to describe the project version you can use the package.json version. For OpenAPI generation. the @OpenAPI.info nows decorator allows providing the document version.

Breaking Changes

#2920 Intersecting Record with incompatible properties will now emit an error

0.53.1

Patch Changes

e6a045b: Allow using default values for union property types

0.53.0

Minor Changes

15f6dbe: Added an optional validation message to the @pattern decorator.
9726b3d: Emitter framework: ObjectBuilder will keep track when built using a Placeholder allowing data to be carried over when chaining ObjectBuilder

Patch Changes

cc2723a: Template instantiated with ErrorType will get the arg changed to unknown
fd4fdfb: Fix: Error out when using properties in array model

0.52.0

Wed, 24 Jan 2024 05:46:53 GMT

Updates

add bytes encode to the general encode type
Added support for named template arguments (#2340)
Feature: Added encoded name decorator
Add a new init template for creating a new emitter
Added new --template option to tsp init command line action which lets user specify which template to choose from in the template list.
IDE: Performance improvements to the language server.
Fix: Compiler couldn't resolve files at a long path(256+) on windows
Stop warning user when tsp init a template without compilerVersion specified
Library declaration: Deprecated linter property on $lib in favor of a new $linter variable that can be exported. This was done to prevent circular reference caused by referencing linter rules in $lib.
Library declaration: State symbols can now be declared in the library declaration(Prefereably internal declaration added above) to have a central place to define state symbols used in your libraries.
Add a new tsp init template for setting up a library
Rename template parameters in preparation for named template argument instantiation.
Add ability to use another template parameter as a constraint. e.g. model Foo<A, B extends A>
Add new helper function to change casing to the init templates
Update dependencies

0.51.0

Wed, 06 Dec 2023 19:40:58 GMT

Updates

[API] Emitter framework: emitTypeReference function takes an optional reference context that can be used to patch the context for the target.
Emitter API: Added absolute-path as a known format for emitter options which will validate the value passed by the user resolve to an absolute path.
Linter rules can provide a url to the full documentation
New language feature BREAKING Added string template literal in typespec. Single and multi-line strings can be interpolated with ${ and }. Example \Doc for url ${url} is here: ${location}``
Formatter: Fix: valueof expression with parentheses around will preserve them when they are meaningful(For example inside a union or array expression)
Emitter framework: allows scalar and enum declaration to provide a reference context.
Fix: Union variant are now assignable to the parent union
Emitter framework: Allow passing a custom context when calling emitType
Upgrade formatter to prettier 3.1

0.50.0

Wed, 08 Nov 2023 00:07:17 GMT

Updates

Add new unixTimestamp32 scalar to standard library
Fixing @doc and /** */ disappears from multi-segment or nested namespaces. #2642
Fix issue where using @overload could result in incorrect unassignable type errors.
Add new hook for handling circular references
Fix: Issue where referencing a template in an alias might cause augment decorators to not be applied on types referenced in the aliased type.
[Internal] Fix: RekeyableMap kept track of old value if rekeying to an existing item
Fix: Properties filtered with @withVisibility will have their visibility removed. This prevent visibility from being applied twice and rendering invalid models
TypeEmitter now supports Tuples.
Issue error if a model spreads itself within its declaration.
Stop showing empty code frame when diagnostic has no location
TypeScript use types entry under exports of package.json instead of legacy typesVersions to provide the definition files
BREAKING CHANGE Dropped support for node 16, minimum node version is now 18

0.49.0

Wed, 11 Oct 2023 23:31:35 GMT

Updates

Handle hyphen in @param doc comment
The never type is now assignable to all types
Allow nullable types for constraint decorators(min/max value, length, etc)
Add support for @returns and @errors doc comment tags. @returns(or @returnsDoc decorator) can be used to describe the success return types of an operation. @errors(or @errorsDoc decorator) can be used to describe the error return types of an operation.
Fix: Colorization of line comment was bleeding over to the next line(s).
Fix crash when using parenthesis on directives
Fix: Assigning negative and 0 to float64
tsp format now returns a non-zero exit code when it fails to format a file
Fix: Anonymous union variants were formatted with an extra leading :
Formatter: Unions and Enums members are now formatted following the same rules as model properties. An extra line will be added between members if the member is annotated with a decorator, directive or doc comment.
Fix: Correct formatting of comments between a directive or doc and its node
Fix: tsp init was not creating the tspconfig.yaml file for templates that specified it
Fix: tsp init will create a placeholder tspconfig.yaml file for templates that don't specify an explicit one.
Fix tsp init was ignoring the files specified in an init template
Fix: Language Server wasn't loading the tspconfig.yaml correctly resulting in some options being dropped like the linter configuration.
Fix: Allow null to be assigned as a default value
Fix: Using TypeSpec.Xyz namespace shouldn't require the TypeSpec Prefix
Skip emit of deprecated diagnostic for a type reference that is used in a deprecated declaration statement
Update dependencies
Remove decorators export, import decorators individually

0.48.1

Tue, 19 Sep 2023 19:28:32 GMT

Patches

Fix emitter framework issue causing reference context to be lost in certain cases.

Updates

Add typesVersions metadata for the emitter framework to package.json

0.48.0

Tue, 12 Sep 2023 21:47:11 GMT

Updates

Breaking Change A semicolon is now required after augment decorator statements.
Added decorators @parameterVisibility and @returnTypeVisibility. Added methods getParameterVisibility and getReturnTypeVisibility.
Fix issue where --config would search the folder hierarchy looking for tspconfig.yaml.
Deprecation @deprecated decorator has been marked as deprecated. Use #deprecated directive instead.
IDE Add coloring for doc comment
Changed yaml parser from js-yaml to yaml
Parsing and validation of the tspconfig.yaml will not report the error location.
Fix Stackoverflow when model property reference itself
Fix Compiler crash when using alias of namespace that has decorators
Fix: Compiler freeze when using invalid token between doc comment and type
Added validation making sure properties of model are compatible with a base model indexer (using extends)
Fix: Crash with when relating recursive types
Fix typo in 'format' error message
Expose CompilerOptions TypeScript type
Report library information when crash happen in $onValidate
Diagnostics reported on nodes with an id will see the diagnostic highlight the id instead of the whole node. For example it will show the error on the model name instead of highlighting the entire model.

0.47.1

Thu, 10 Aug 2023 20:18:00 GMT

Patches

Fix: --config flag was being ignored.

0.47.0

Tue, 08 Aug 2023 22:32:10 GMT

Updates

Allow omitting variant names in union declarations
Internal: Refactoring of cli code
Other cli commands reuse the diagnostic system to report errors
Add #deprecated directive to replace @deprecated decorator
Add --ignore-deprecated CLI argument to suppress all deprecated diagnostics
Breaking change Emitter Framework: sourceFile method can return a Promise. This allows running async processes when generating the file content, a formatter for example. This result in a potential breaking change if calling emitSourceFile where you'll have to add await before.
Add a new util resolveCompilerOptions to resolve compiler options from a given entrypoint. This will resolve the options from the tspconfig.yaml in the same way the cli would.
Fix: Compiler version mismatch error would fire incorrectly
Fix crash when using non-namespace
Fix some issues with not reporting deprecation on template constraints
Emit diagnostic for an unresolved metatype property reference
Fix issue where using augment decorators on spread model properties, enum members or operations extended from parent interface wouldn't do anything.
Fix issue where using augment decorator on operation parameters applied to source operation parameter as well.
Fix: TypeEmitter missing interfaces methods causing crash
Fix warn-as-error in tspconfig.yaml was ignored
Improve compiler watch mode. Files loaded in previous compilation will be watched for changes.
Breaking change formatTypeSpec is now async. Formatter was updated to use prettier 3.0.
Allow library dependency versions to be specified in init templates using the form { name: "the-lib", version: "1.0.0" }
Update init template version compare to be greaterThanAndEqual instead of greaterThan.

0.46.0

Tue, 11 Jul 2023 22:06:00 GMT

Updates

Fix signature help after comment with no closing parenthesis or angle bracket
Internal: Reorganize sources inside src/ folder
Fix: Doc comment /** */ should override base type doc in model is or op is
Emitter Framework: add support for emitting enum member references.
Feature New built-in linter system. Typespec libraries are able to define linting rules which can be configured in tspconfig.yaml. See documentation for configuring a linter and writing a linter
Breaking Minimum version of TypeScript updated to 5.0. TypeSpec is using new features available in TypeScript 5.0 which result in a definition file not parsable by older version. Note that this only affect compiling TypeScript code and is not breaking any JS or TypeSpec code. See more information on typescript 5.0
Remove mkdirp dependencies and replace with built-in mkdir({recursive: true}).
Compiler keeps track of the scope where a file is declared(User project, a library or the compiler)
Add support for UTF-8 with bom for other files loaded by typespec compiler. .tsp files already had support, this make it more available for any library/emitter using the compiler api to load a file.
Allow annotations(Decorators, directives and doc comments) to be specified in any order
Fix: entrypoints folder wasn't included in package causing failure to resolve cli.js
Fix: Formatter incorrectly formatting :: to .
Fix formatting issue with comment between decorator and scalar or interface
Fix: Stack overflow crash when having circular reference with op is inside an interface.
Fix IDE issue with squiggles in library code if the library had an entry point named something other than main.tsp and a library document was opened after another document that imported the library.
Fix: Referencing decorator target in argument cause stack overflow for enum and union in checker and interface and operations in projection.
Fix getTypeName include namespace prefix for unions as well
Formatter will now format doc comment above directives and decorators. This only applies to doc comments. Regular line comments and block comments will remain where they are
Formatter: Improve formatting for properties with comments and decorators. A property with a leading decorator on its own line or comment will be wrapped in blank lines.
Breaking change Updating tsp init template schema for future extensibility. Older tsp version will fail validation.
Emitter Framework: TypeEmitter can now implement writeOutput to customize how to write source files to disk.
Emitter Framework: Source Files and Declarations have a new property meta which can store arbitrary metadata about those entities.
Add support for new identifier characters from Unicode 15.0
Deprecate @list decorator in favor of @listsResource in @typespec/rest
Deprecate isListOperation function in favor of isListOperation in @typespec/rest
Deprecate getListOperationType function
Emitter Framework: Add new TypeEmitter methods for scalar instantiation.
Emitter Framework: Fix that context was set incorrectly for some TypeEmitter methods, and add missing context methods for model properties, enum members, and union variants.
Emitter Framework: Fix that some context methods were not being passed the expected parameters.
Emitter Framework: Breaking change: Add support for templates instantiated with types without declared names. In such cases, TypeEmitter's declarationName method may return undefined, and so the various *Instantiation methods might be called with an undefined name, and AssetEmitter's emitDeclarationName method might return undefined.
Fix: Wrong path for typescript types for main entrypoint
Update dependencies

0.45.2

Thu, 15 Jun 2023 17:00:33 GMT

Patches

Fix: Formatter crash when using comment in empty statement, after an augment decorator or in an empty file

0.45.1

Wed, 14 Jun 2023 17:05:12 GMT

Patches

Fix: Formatter moves all comments in flattened namespace to the top

0.45.0

Tue, 06 Jun 2023 22:44:16 GMT

Updates

Fix: tspconfig.yaml should always get resolved relative to the entrypoint
Add decimal and decimal128 built-in scalar types.
Feature Doc comment will be applied as the doc for types unless an explicit @doc is provided.
Added new keyword valueof designed to request for a value type in a decorator parameter.
BREAKING Decorator API will not be marshalling values unless the parameter type is using valueof. extern dec foo(target, value: string) should be changed to extern dec foo(target, value: valueof string).
DEPRECATION To make transition to valueof smoother if using a template parameter inside a decorator that is now using valueof the existing parmater constraint will still be compatible but emit a warning.
BREAKING CHANGE Fix: Array shouldn't be assignable to an empty model(and object)
DEPRECATION object is deprecated. Alternative is to use {} for an empty model, Record<unknown> for a record with unknown property types, unknown[] for an array.
Mark Array and Record doc comment as for dev only
Fix: formatting of comment between decorator and op statement
Fix: Operation can self reference or circular reference other operation via decorators
BREAKING CHANGE Remove @format("url") from url scalar
Fix unixTimestamp validation was incorrect
Fix diagnostic validating type is intrinsic always showing string as expected
Fix error message for @encode errors.
Improve error handling when tsp init template is invalid or fails to download.
Emitter framework: uppercase type argument type names when constructing a declaration name from a template instantiation.
Add signature for missing decorators
Remove dependency on node-fetch
Remove misleading output dir from compilation success message
Fix relative path resolution when init template is behind HTTP redirect
Emitter option validation will only validate emitters selected with emit/--emit. Options for other emitter will be ignored. This allows defining options for an emitter that is not installed.
Fix signature help with trailing space in unterminated arg list
Add template argument signature help
Show alias doc comments in IDE

0.44.0

Wed, 10 May 2023 21:24:00 GMT

Patches

Normalizing cwd before first use in getCompilerOptions()

Updates

Allow use of defaults on non-optional properties.
Cleanup deprecated use
Added @encode decorator used to specify encoding of types
Add projectRoot to program
Api: Added sourceModel and sourceOperation on Model and Operation respectively.
Add relative file path utils, and allow emitter framework's ObjectBuilder to be initialized with a placeholder object.
Better error recovery when error thrown from emitter is not an object
Fix compiler mismatch error recommendation
Fix: Interface with templated operation causing crash if defined after use
Fix: Issue with templated operations in templated interface would get cached only by keying on the operation template args.
Fix: missing-index diagnostic showing at the wrong location
Fix --emit pointing to emitter js entrypoint resolve correct options
Fix: scalar template parameter name conflict with each other
Added a new isFinished property to types to differentiate template instance that are not finalized (Still have template arguments to be resolved)
Breaking isTemplateDeclaration will only return true for the original declaration and not partially instantiated templates.
Fix unsupported-default diagnostic showing at the wrong location
Fix url doc to not mention "URI"
Minor reorganization of standard library docs
Language server: Allow main file to be outside workspace.
Added Model and Scalar to Reflection namespace
Fix @format decorator doc.
Update dependencies

0.43.0

Tue, 11 Apr 2023 18:49:17 GMT

Updates

Bug: Emitter framework will now visit scalar declarations
Emit diagnostic when ambiguous symbol exists between global and usings.
Feature: Add support for referencing metatypes ModelProperty ::type and Operation ::returnType and ::parameters
Relax constraint on derived type overrides
Fix: Alias unknown ref crash
Fix: Empty model expression assignable to array
Fix tsp code uninstall not finding extension to uninstall.
Fix Issue where template parameter type check wouldn't work if constraint is exact same type as next validation.
Prevent use of augment decorators on instantiated templates.
Allow projectedNames helpers to work with previous projections
Add helper interpolatePath for emitter to do additional interpolation on config properties
Api: Update getTypeName to omit standard library namespace
Allow overloads in interfaces to work under projection
Add pre-projection support.
Provide access to extended interfaces in type graph.
Document member ordering and fix projection rename reordering.
Replaced zonedDateTime with utcDateTime and offsetDateTime

0.42.0

Mon, 13 Mar 2023 21:30:44 GMT

Updates

Breaking Change. Removes emitters option in cadl-project.yaml. Use emit and options instead.
Export formatIdentifier function from the lib
Add --config option to tsp compile.

0.41.0

Fri, 03 Mar 2023 19:59:17 GMT

Updates

Adding back all compiler exported public artifacts contains Cadl that got renamed to TypeSpec.
Fix ambiguous references diagnostic for decorators
Add loading cadl-project.yaml for back compat
Remove support for Visual Studio 2019
Allow escaping identifiers using backticks
Format StringLiteral to Identifier (backticked when necessary)
Apply augmented decorator at last.
Adding .cadl & package.json cadlMain back compat support
Fix projection of template arguments
Revert back changelog
Revert PR #1634.
Fix issue with projectedName decorator not working correctly when multiple copies of the compiler are loaded.
Updating default output to tsp-output and package.json entrypoint to tspMain
Rename to TypeSpec
Fixing cli help message, package homepage link

0.40.0

Tue, 07 Feb 2023 21:56:17 GMT

Updates

Fix giving a default value to custom numeric scalar
Feature: add an emitter framework to simplify building emitters
Add arrayDeclaration and arrayLiteral methods to emitter framework's TypeEmitter
Bug: properly parse logical and (&&) expressions in projections
Support --option=path/to/emitter.js.option=value in cli args
Removed all *Type aliases (ModelType for Model, etc.). Removed uri scalar. Removed Map<K, V> model. Removed @serviceTitle and @serviceVersion decorators. Removed getServiceNamespace, getServiceTitle, getServiceVersion, getServiceNamespaceString and setServiceNamespace functions.

0.39.0

Fri, 13 Jan 2023 00:05:26 GMT

Updates

Api: Provide more accurate parent type for Nodes
Add IDE completion and signature help for augment decorators
Fix (anonymous model).paramName showing in operation signatures in IDE
Add double quote to autoClosingPairs
Only warn when an invalid identifier is used in a doc comment
Add @minValueExclusive and @maxValueExclusive decorators.
Feature: Templated operation inside of interfaces
Feature: Add templated operation inside of interface
Fix: Alias cause types to be resolved before some binding
Fix cadl format works with windows backslash paths
[Language Server] Fix: Completion of library imports replace import correctly"
Fix issue with using server lib at the root of filesystem
Fix: Projecting model property with type referencing sibling
Fix: Issue with referencing spread members
Internal: Update resolution of member symbols to have more ahead of time resolution
Internal: Update TS module resolution to node16
Type graph navigation navigate decorators
Internal: Refactor organization of completions logic for language server
Fix issue with referencing spread properties or enum member depending on the order of declaration
Fix: resolveUsages shouldn't include base model
Added changeReturnType projection method for operations.
Improve visibility decorator documentation

0.38.5

Fri, 16 Dec 2022 22:02:45 GMT

Patches

emitter not found validation in emitter options is a warning

0.38.4

Thu, 15 Dec 2022 02:21:08 GMT

Patches

Fix: --arg wasn't being picked up

0.38.3

Fri, 09 Dec 2022 22:03:04 GMT

Patches

Fix: constants not available in fs/promise

0.38.2

Fri, 09 Dec 2022 20:43:01 GMT

Patches

Fix: Revert breaking change to global cli usage

0.38.1

Thu, 08 Dec 2022 22:04:15 GMT

Patches

Fix: scalar can be used inside of namespace block

0.38.0

Wed, 07 Dec 2022 17:21:52 GMT

Minor changes

Allow subtypes to override parent properties if the derived property type is a subtype of the parent property.
Add opt-in support for parsing JSDoc-like developer documentation
Show developer docs in IDE features
Doc: Add Doc comments to built-in types and decorators
Deprecation Split emitters in cadl-project.yaml and compiler in 2 option emit and options that makes it consistent with the CLI
Extract getTypeName and getNamespaceString outside of the checker into standalone helper function
Add new helper validateDecoratorUniqueOnNode that validate the decorator is not being used twice on the same node
Add variable interpolation functionality in the cadl-project.yaml
Add built-in emitter-output-dir options for all emitter.
Api Breaking change $onEmit signature was updated to take an EmitContext object as only parameter.
Fix typing and export format command
Api Breaking Multiple @service per specs are now allowed.
Add new program.resolveTypeReference helper to resolve a type in the cadl program using fully qualified name
Breaking Add new scalar type and updated all intrinsic types to be a scalar type. model MyString is string changes to scalar MyString extends string
LanguageServer Feature: Add signature help for decorators
Testing Simplification of the testing framework
cadl init Initialize the package.json with type: module
Deprecation Renamed url to uri. Old uri is deprecated

Patches

Fix member completion on aliases
Improve error recovery in the presence of merge conflict markers
Fix reportDiagnostics error from emitters
Fix: Should still instantiate template with invalid args but using constrain value
Fix: Issue with diagnostic location when target was the operation parmeters
Fix: miscOptions handling
Fix Handle no service in services deprecated apis
Fix: Validate @service decorator is targetting a namespace
Fix: Cascading error when template is used with invalid arguments
Update dependencies

0.37.0

Sat, 12 Nov 2022 00:14:04 GMT

Minor changes

Add output-dir, trace, imports option to cadl-project.yaml giving parity with cli arguments
Feature Add decorator and function declaration in cadl using extern dec and extern fn.
Fix: crash with referencing global namespace
Added a new export to only import the module resolver
Debugging: adding tracing information for JS decorators and function binding

Patches

emitFile now ensures that the folder exists prior to writing to the path.
Add isDeclaredInNamespace utility function that checks if a definable type exists under a namespace or its children

0.36.1

Wed, 19 Oct 2022 19:36:13 GMT

Patches

Fix augment decorators can be applied on namespace

0.36.0

Wed, 12 Oct 2022 21:12:35 GMT

Minor changes

Remove createProgram and change compile parameter order to match old createProgram.
Add new getDiscriminatedUnion helper to resolve the variants of a discriminated model or union
Emitter throwing exception will emit a new emitter-uncaught-error diagnostic with information on how to file issue for the given emitter.
Expose module resolver
Add support for augment decorators.
Language server provide document formatting using Cadl formatter
Deprecation Replace @serviceTitle and @serviceVersion with a single @service decorator.
API Replaced logger (now internal) with new tracer module. Where trace have to be explicity enabled with --trace.
Add uri built-in type
Allow referencing global namespace as global for disambiguation
Feature Api: resolveUsages can now be used on a list of operation, interface or namespaces
Fix Api: resolveUsages collect reference to array element type and record value correctly.
Expose helper to walk inherited properties and some helper data structures
Feature: decorators Add @minItems and @maxItems decorators
Add navigateNamespace helper letting user to navigate types under a namespace.(Similar to navigateProgram)
Include @discriminator decorator from "@cadl-lang/rest" library
Language Server: Improvement to outline, symbols correctly structured.
Rename output-path to output-dir and deprecate old name.
Add additional validation for @overload decorator: Make sure overloads are in the same container and that return types are compatible
Added listOperations helper method
Breaking Model extends or is cannot reference a model expression.

Patches

Fix bug where cloned type members had wrong parent
Internal: Update type of CompilerOptions.miscOptions to be more accurate.
Fix: Intersection types belong to namespace they are declared in.
Fix: namespace and non namespace types should have unique names
Fix: Deprecated output-path not being respected
Fix: Property included via model is were not referencing the right model parent.
Fix: Projected types point to projected parent type for Model properties, Union variants.
Fix: Projected model property sourceProperty point to projected property
Minor improvemens to decorator definitions

0.35.0

Thu, 08 Sep 2022 01:04:53 GMT

Minor changes

implementation of documentHighlight
Breaking Update Enum type members type to be a Map<string, EnumMember> instead of EnumMember[]
Add @projectedName decorator and projection for projected names
Add auto formatting support for projections
Add syntax highlighting for projections
API BREAKING Replace enableProjections and disableProjections with a new function projectProgram removing the state of the program around the current projection.
Api: Add helper method to resolve model usages
Formatter: Comments in between decorators will stay between the decorators when formatting.
Hovering over a symbol gives the fully-qualified name and documentation
Enable loading multiple installation of the same library as long as the versions are the same
Internal: Remove evalCadlScript from Program
Remove Type suffix from most Types and deprecate old names
Perf: Reuse unchanged files and programs in language server.

Patches

Api: isGlobalNamespace takes projection into account
Internal: Facilitate adding new tokens to scanner."
Formatter: Cadl doesn't include blank line at the end of embedded markdown codeblock
Fix issue with ever-increasing duplicate symbol errors in IDE
Formatter: Directive on model property with decorators will hug decorator.
Fix additional issues for decorators not running in projections in templated type instance
Internal: Fix some functionally not compatible in the browser
Fix issue where decorators would get called on uninstantiated template declarations
Internal: Don't clear template arguments on clone
Internal: Make scanner capable of scanning future keywords that are longer than 10 characters.

0.34.0

Thu, 11 Aug 2022 19:05:23 GMT

Minor changes

combine consecutive single line comments that are separated by whitespace
comment folding
implemented folding for comments
Allow extracting value from enums
Add helper method for emitting file in emitters
Feature: Emitter can specify a list of required imports
Allow @secret on model property
Add type relations and include a few more built-in types any, object, Record. Map was removed
Added support for template constraints
Format model Foo is Bar {} to model Foo is Bar;
Added ability for decorator validator to accept any type
Add @overload decorator
Add helper to check if a namespace is the global namespace
Support spread enum
Add editor support for document symbols.
Improve language configuration to help with comment indentation
Provide helper to check types are template, template declaration or template instance

Patches

Fix: Allow omiting optional properties
Improve cloneType implementation to duplicate decorator lists correctly
Add DefaultKeyVisibility<T, Visibility> and @withDefaultKeyVisibility to assign a default visibility value to model @key properties in specific operation signatures
Fix: Referencing previous template parameter in template parameter default
Fix bug in finding effective type
Fix issue with required parentheses being dropped with union, intersection and array expressions
Fix issue with formatting multi line tuple adding trailing comma.
Fix parsing error locations for imports and blockless namespaces
Fix issue with multi-file specs in VS Code on Windows where common definitions are not found.
Fix mix message when trying to extend non-interface
Fix issue with projection of nested namespace passing partial projected element to decorators
Fix: Operation signature with circular reference causing crash and updated message+code to be relevant to operations.
Fix: Couldn't use operation defined inside interfaces as signature.
Fix uninitialized parent namespaces in projections
Run projections on types returned from getEffectiveType
Fix: Issue with Nested namespace in projection causing versioning library to fail when Service is using nested namespace
Internal: union variant type has reference to parent union.
Fix null reference in getTypeName API when called on anonymous models without a backing syntax node
Emit diagnostic when an optional property is marked with @key
Providing cadl.cadl-server.path option will force the specified compiler to be used
Fix error location of duplicate property from spread

0.33.0

Fri, 08 Jul 2022 23:22:57 GMT

Minor changes

Decorator definition helper support spread args
Add ability to provide emitter options
Improve folding in IDE.
Allow omitting braces from model is statements
implementation of relativePath

Patches

Fix issue with compiler version mismatch in VSCode
Fix error location for intersection with non-model
Fix Internal Compiler Error when using invalid relative import
Internal: Decorator definition helper works with multiple target and param types
Improved the error message shown when an onEmit function is not found in the requested emitter package

0.32.0

Mon, 13 Jun 2022 23:42:28 GMT

Minor changes

Improve error message when loading library with invalid main file
Added new decorator signature validation helper
Allow empty tuples
Add helper functions to work with diagnostics in accessor functions
Add diagnostics target to decorator context
Add @deprecated decorator and emit warning diagnostic when referencing deprecated type
Add completion support for import of libraries
Remove @serviceHost decorator
Add ability to rename Models, Operations, Interface, Unions and Enums in projections.
Add compiler API to filter model properties and get try to find equivalent named models for anonymous models
Rename setDecoratorNamespace -> setCadlNamespace
Add support for operation templates and operation signature reuse
Implement references to model, enum, union, and interface members
Add semantic colorization
Add completion/find-all-ref/rename support to member references
Allow using before blockless namespace

Patches

Fix completion between . and )
Fix issue with compiling virtual editor files
Allow an emitter library to have .cadl files
Fix issue with resolving node position when inside string literal
Provide full namespace name in diagnostic
Fix issue with server not locating main.cadl in parent folder
Improve tracking of open documents in language server
Fix issues with referencing enum from decorator on namespace

Updates

Allow cadl compile . on the compiler itself
getTypeName returns type name for more types
Upgrade to TS4.7

0.31.0

Fri, 06 May 2022 17:19:57 GMT

Minor changes

Prompt on cadl vs install if multiple versions of VS are installed
Improve module resolution logic to allow compiling a cadl library
Add code preview and coloring for diagnostics.
Add ability to import library or emitter defined in parent folder. Adds the ability to use the actual emitter name in a samples folder of that emitter
Formatter has ability to ignore patterns
Formatter: remove quotes in model properties when not needed
Add library loading debug logging
Include manifest with version and commit
Rename mixes to extends for interfaces
Include reference from parent model to all children
Cli: Add --no-emit flag configuring the noEmit compilerOption
Add warn-as-error flag to cli that will return non zero exit code when there is a warning
Add find references and rename support to language server
Add goto definition of namespaces, usings, and decorators to language server
Export isTemplate helper method
Add namespace to model expressions
Make Program.checker required
Added formatting to a few more missing syntax(array, tuple, template parameters)
Add OmitProperties type and @withoutOmittedProperties decorator
Remove node 14 support
Log PID and timestamps in language server
Update to Unicode 14.0 and disallow U+FFFD
Add option to Checker.getTypeName to filter namespaces

Patches

Improve tests for doc decorator
Add workaround for npx bug causing issue with backslash in cli on windows
Do not validate default assignment when property type is an error type. Prevent additional unrelated error to the original problem with the property type.
Fix projection bug setting the namespace of operation with the interface
Fix logger levels
Fix issue with using model in template default
Give a helpful error when code is missing from path
Don't complete decorator names in type reference position
Preserve namespace nesting in versioning projections

Updates

Add CadlLanguageConfiguration containing the configuration used by editor (vscode, monaco)

0.30.0

Thu, 31 Mar 2022 17:10:49 GMT

Minor changes

Add new helper cadlTypeToJson to convert cadl type to a Json serializable type
Add helper methods to detect void and never types
Prevent decorators from running if arguments are errors.
Handle unknown identifier/error types used in spread operator.
Add parent .model to ModelTypeProperty
Add validation that template params cannot use latter params as default

Patches

support format in bytes type
Fix: stack overflow when defining template argument where default reference argument itself. Foo<T = T>
Fix formatting of comment between decorator and statement
Fix resolving location for diagnostic in js files
Fix formatting of comment between decorator and property
Fix using & with template parameters
Support browser builds
Fix issues with mishandled promises
Fix cascade of error when having unexpected token in directive

0.29.0

Wed, 09 Mar 2022 17:42:09 GMT

Minor changes

Move @key decorator to core
Replace findChildModels with mapChildModels
Exports NodeHost for programmatic usage of Cadl
Added @knownValues decorator providing set of known options for a string type
Using extends with intrinsic types will emit diagnostic.
Allow op in interfaces
Complete using statements and qualified decorators.
Add back @inspectType and @inspectTypeName decorators
Redirect console.log to stderr in language server

Patches

Improve list parsing error recovery
Use the proper symbol to use cadl exports in eval
Fix issue with missing namespace name in certain cases
Fix issue using is with intrinsic types.
Fix decorator completion on namespaces
refactor symbols and other improvements

0.28.0

Tue, 15 Feb 2022 22:35:02 GMT

Minor changes

Internals: Module resolver not dependent on CompilerHost
Provide reusable decorator validation for target

Patches

Fix parser issue with missing error flag when using interface extends instead of interface mixes.
Fix parser issue with incorrect op in various projection expressions, and wrong node type for / and *.
Add support for separate @summary from @doc

0.27.0

Mon, 14 Feb 2022 03:01:07 GMT

Minor changes

Provide helper for library to validate parameter
Update api for decorator taking DecoratorContext instead of Program

Patches

Fix bugs involving merged decorators
Give nice error for using extends keyword in interfaces
Implement template parameter defaults
Bump dependency versions

0.26.0

Fri, 04 Feb 2022 18:00:18 GMT

Minor changes

Validate for @doc decorator argument is a string
Add @error decorator in core
Added --emit flag to configure the emitter(s) to use and separate library imports from emitters
Add directory manipulation to CompilerHost
Update to syntax tree to be readonly
Formatter: Separate Enum members with decorator with new lines
Implement projections and versioning

Patches

Adding @format decorator to compiler and openapi3 emitter
Add sourceObject parameter to @doc decorator to aid in producing messages using a context object
@list decorator will now ignore TemplateParameter objects
Init include compiler as dependency in generated package.json
Allow CLI array options to come before positional arguments
Fix Diagnostic location for invalid use of templated models
Fix path normalization issue that caused diagnostics from language server to be dropped.
Fix error with file ending with mutline comment
Fix issue when loading cadl using a different casing than the actual casing in a case insensitive file system
Add @friendlyName decorator to customize model names for emitters
Fix issue where identifiers could be confused with keywords when they had common endings.
Renaming @format decorator to @pattern.
Stop offering true and false completions after .
Fix completion icon for symbols pulled in via using

0.25.0

Thu, 16 Dec 2021 08:02:20 GMT

Minor changes

Update reference resolution with using to fix duplicate symbols issues
Added keyword autocomplete and icons
Added support for union default values
Formatter Add support for spread model formatting
add mkdirp to compilerHost

Patches

Add findChildModels and getProperty utility functions
Fix Circular reference in is or extends now emit a diagnostic instead of crashing
Fix Circular reference in alias now emit a diagnostic instead of crashing
Fix Circular reference between template model and non template model causing unresolved types issues.
Formatter fix issues with empty model and interface with comments being moved outside.
Formatter fix crash when having a comment in anonymous empty model.
Formatter fix crash when using multi-line comment without each line starting with *.
Formatter Tweak formatting of interface mixes that overflow.
Formatter Keep single value decorator inline.
Formatter Keep empty line seperation in interface similar to namespace (Only keeps 1 max between operation).
Add support for interface as a @tag decorator target
Reintroduce @list decorator to assist with collection operations
Improve getTypeName support for Unions and UnionVariants

0.24.1

Wed, 01 Dec 2021 22:56:11 GMT

Patches

Fix issue where formatter would try to format a document with irrecoverable parse errors in certain cases
Fix Wrong library import for the rest template
Fix crash in language server
Fix formatting bug with operations returning anonymous models
Fix language server crashes in certain error cases
Update README

0.24.0

Thu, 18 Nov 2021 13:58:15 GMT

Minor changes

Added cadl install command which shell out to npm install
Remove @list decorator
Show @doc info along with completions

Patches

Fix Logging of warning counts, showing error count
Ensure interface is assigned for checked operations
Add setDecoratorNamespace helper function

0.23.0

Thu, 11 Nov 2021 21:46:21 GMT

Minor changes

Added duration intrinsic type
Added --check option to cadl format command to verify files are formatted
Added log of the error and warning count at the end in case cadl compile failed.
Added Support for models with mutual references
Add completion ("IntelliSense") support to language server
cadl init generate package.json with private: true

Patches

Add Prettier formatting support for interface mixes
Add new --import CLI parameter to add a global import via the command line

0.22.0

Thu, 28 Oct 2021 21:17:50 GMT

Minor changes

Added logger functionality to log information
Add OmitDefaults model to remove default values of a model

Patches

Return non-zero exit code when compilation has errors
Diagnostics are strongly defined and all have a code
Fix using formatting
Tweak formatter model properties with decorators
Improve decorator formatting

0.21.0

Fri, 15 Oct 2021 21:33:37 GMT

Minor changes

Add an API to clone a type
Reverse decorator evaluation order
Added Support for server default
Added New library helper for strong diagnostics definitions
Added New syntax to compiler for directive
Added support for suppressing warning via #suppress directive
Implement interface
Add walker, colorization, printer for interfaces
Surface decorator and emitter errors in IDE
Add union declarations

Patches

Defensive code to prevent errors in decorators and onBuild from exiting the language server
Fix options comment
Update samples
Fix binding JS file namespaces and namespace decorators referencing types in a later namespace.
fix using a namespace merged after current namespace
Fix namespace synthesis in certain contexts
Make nextLink optional in pageable response
Stop running decorators and emitters in language server again, fix language server crash.
regenerate samples

0.20.0

Fri, 17 Sep 2021 00:49:37 GMT

Minor changes

Added cadl init command to scaffold new cadl project
Added semantic walker
Add IDE go-to definition support
Implement cadl namespace, don't merge namespaces until checking
Remove support for multiple inheritance
Definition for bytes and new number types

Patches

Fix issues with specs
Update samples
Ensure syntax nodes report correct and consistent source positions
Fix bug that broke analyzing untitled documents in IDE
Fix bug preventing using latest changes to document in IDE
Update sample generation

0.19.0

Sat, 21 Aug 2021 00:04:02 GMT

Minor changes

Introduce naming convention $name for JavaScript-defined Cadl functions and decorators

Patches

Update test output

0.18.0

Fri, 13 Aug 2021 19:10:21 GMT

Minor changes

Remove cadl generate command

Patches

Add support for discovering updatable properties using visibility
Fix error in cadl vs uninstall command

0.17.0

Tue, 10 Aug 2021 20:23:04 GMT

Minor changes

Rename package to @cadl-lang/compiler

0.16.0

Mon, 09 Aug 2021 21:14:12 GMT

Minor changes

Add compile --watch option to watch files for changes and recompile
Implement model is

Patches

Update to yargs 17 and update args parsing to use handlers logic to have full type safety
Report errors for duplicate model and enum members

0.15.0

Mon, 02 Aug 2021 18:17:00 GMT

Minor changes

Rename ADL to Cadl

0.14.0

Wed, 28 Jul 2021 19:40:06 GMT

Minor changes

Decorators can be put into namespaces using a .namespace property or a namespace export

Patches

Add service code generator module
Allow more non-ascii characters in identifiers and normalize identifiers
Use newer version of autorest from adl generate

0.13.0

Fri, 09 Jul 2021 20:21:06 GMT

Minor changes

Add OptionalProperties and withOptionalProperties decorator for creating model variations with all properties set to optional
Add semantic analysis to language server

Patches

Update Diagnostics code to be a string
Formatter can recover from parsing error that don't affect the validity of the tree
Use LSP to log messages from client to server

0.12.0

Thu, 24 Jun 2021 03:57:43 GMT

Minor changes

Require main.adl or adlMain in package.json
Add mutator library which enables the programmatic addition of model properties, operation parameters, and operation return types
Add semantic error recovery

Patches

Added ADL Configuration file loading
Added typechecker type navigation
Add isStringType helper function
Fix some edge cases in config file loading
Add support for Visual Studio 2022

0.11.0

Tue, 18 May 2021 23:43:31 GMT

Minor changes

Added format command to automatically format adl files

Patches

Fix Throw diagnostic when main ADL file doesn't exists
Fix TypeError after adl vs command
Fix formatter handling string and number literal should keep as it is.
Fix Formatter not rendering template parameters of models.
Fix Don't format a file with parsing errors
Work around npm 7+ Mac OS bug in adl code install
Prefer local install of adl package when running global adl

0.10.0

Thu, 06 May 2021 14:56:02 GMT

Minor changes

Implement alias and enum, remove model =
Implement basic parser error recovery
Add API to check if a node or any descendants have parse errors

Patches

Small parsing speed improvement when expecting one of N tokens.
Fix blockless namespaces not accumulating decls
Allow leading +/- in numeric literals and require fractional digits
Fix bugs with non-ascii identifiers
Improve CLI experience for generate command
Replace several internal compiler errors with diagnostics
Do not allow multi-line non-triple-quoted string literals
Fix parsing edge cases and optimize parsing slightly

0.9.0

Tue, 20 Apr 2021 15:23:29 GMT

Minor changes

Fix parse errors from trailing commas; implement optional prefix | and &

Patches

Fix issue where dynamic namespaces were not evaluated
Virtualize writting to filesystem to enable programtic usage of adl

0.8.0

Tue, 06 Apr 2021 01:23:07 GMT

Minor changes

Implement npm libraries
Implement library import with npm, abstract out rest, openapi, rpaas

Patches

Add commands to install and uninstall Visual Studio extension
Enable security and securityDefinitions metadata to be applied to emitted OpenAPI documents; add default ARM security details
Add api-version parameter to all ARM operations
Add operations endpoint for ARM services
Enable creation of $refs to ARM common model and parameter definitions
Add common ARM parameter definitions for resource operations
remove parenless decorators

0.7.0

Wed, 31 Mar 2021 22:00:43 GMT

Minor changes

Implement usings statements
Implement imports
Improved OpenAPI output for ARM services, including pluralized operation groups and operation tags

Patches

Add service-level metadata decorators: @serviceTitle, @serviceVersion, @produces, @consumes, and @armNamespace
Add support for OpenAPI operation overloads using x-ms-paths

0.6.0

Fri, 26 Mar 2021 17:06:33 GMT

Minor changes

Implement namespace merging, blockless namespaces, and dotted namespaces

Patches

Emit readOnly: true for model properties marked with @visibility("read")
The visibility decorator now accepts multiple values; the Swagger emitter will write these out as an x-ms-mutability field.
Adding sample generated controller for _ service
Add back post operation
Add standard ARM operation and error model types
Fix id lookup bug
Initial check-in of adl spec and generated swagger for _
Update _ spec with user comments.
Fixing formatting to match repo prettier config
Add @minValue and @maxValue decorators for specifying the value range of numeric types
Allow the use of recursive type references in model definitions
Enable metadata and extensions to be applied to $ref'd schemas
Add missing metadata for ARM library types

0.5.0

Tue, 23 Mar 2021 01:06:29 GMT

Minor changes

Add time intrinsic type
Rename all date and time intrinsics: zonedDateTime, plainDate, and plainTime
Add commands to install/uninstall VS Code extension

Patches

Automatically mark named enum types with x-ms-enum and modelAsString: true

0.4.0

Tue, 16 Mar 2021 23:13:42 GMT

Minor changes

Introduce language server and add live parse errors to VS Code

0.3.0

Thu, 11 Mar 2021 19:14:29 GMT

Minor changes

Add byte primitive type
Add datetime primitive type
Enable HTTP verb decorators to specify a subpath from the parent resource path
Add float32 primitive type
Replace interface syntax with namespace and op syntax
Add new decorator @tags
Add support for nested namespace definitions and scopes
Add null intrinsic type, allow unions with it for x-nullable support in OpenAPI emitter
Add response model types for many standard HTTP responses in rest.adl
Renamed Ok to OkResponse
Add syntax highlighting

Patches

Fix model Foo extends T { }
Fix resolution of declared parameters in resource sub-paths
Always output a response description field to ensure valid swagger
Added new gRPC to ADL examples
Add back line and column tracking
Support arrays of arrays and parenthesized expressions
Remove hardcoded @autorest/core version
Include source file path in parse error log
Add body-boolean testserver sample
Fix bug preventing empty string literals
Refactor scanner to use less state
Log source locations with all errors
Support multiple content types for request bodies

Updates

Implement extends, re-implement spread to copy properties, implement visibility framework, move to explicit bodies in responses, and fix various bugs.
Implement nostdlib option

0.2.1

Thu, 28 Jan 2021 21:30:01 GMT

Patches

Fixed standard library decorator module resolution

0.2.0

Wed, 27 Jan 2021 21:48:34 GMT

Minor changes

Initial ADL compiler preview release

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CHANGELOG.md

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Change Log - @typespec/compiler

1.6.0

Features

Bump dependencies

Bug Fixes

1.5.0

Features

Bug Fixes

1.4.0

Features

Bump dependencies

Bug Fixes

1.3.0

Features

Bump dependencies

Bug Fixes

1.2.0

Features

Bump dependencies

Bug Fixes

1.1.0

Features

Bump dependencies

Bug Fixes

1.0.0

Features

Bug Fixes

1.0.0-rc.1

Features

Bug Fixes

1.0.0-rc.0

Breaking Changes

Bump dependencies

Bug Fixes

0.67.2

Bug Fixes

0.67.0

Breaking Changes

Deprecations

Features

Bump dependencies

Bug Fixes

0.66.0

Deprecations

Features

Bug Fixes

0.65.3

Bug Fixes

0.65.2

Bug Fixes

0.65.1

Bug Fixes

0.65.0

Bug Fixes

Bump dependencies

Features

Deprecations

0.64.0

Bug Fixes

Features

0.63.0

Bug Fixes

Features

0.62.0

Bug Fixes

Bump dependencies

Features

0.61.2

Bug Fixes

0.61.1

Bug Fixes

0.61.0

Bug Fixes

Bump dependencies