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# Change Log
## v2.12.1
**Bugfixes:**
* `forEachTokenWithTrivia`
* handles irregular whitespace and no longer visits some tokens twice
* correctly calculates the range of JsxText
## v2.12.0
**API-Changes:**
* deprecated `ImportOptions` if favor of the new `ImportKind` enum
## v2.11.2
**Bugfixes:**
* `parseJsDocOfNode`: set correct `pos`, `end` and `parent` properties. Also affects `getJsDoc` of `EndOfFileToken`
## v2.11.1
**Bugfixes:**
* `collectVariableUsage`: correctly consider catch binding as block scoped declaration inside catch block
## v2.11.0
**Bugfixes:**
* `getJsDoc` now correctly returns JsDoc for `EndOfFileToken`
**Features:**
* added utility `parseJsDocOfNode`
## v2.10.0
**Features:**
* added utility `findImports` to find all kinds of imports in a source file
## v2.9.0
**Features:**
* added typeguard `isMappedTypeNode`
* added utilities `canHaveJsDoc` and `getJsDoc`
## v2.8.2
**Bugfixes:**
* `collectVariableUsage`: handle global augmentation like other module augmentations
## v2.8.1
**Bugfixes:**
* Support `typescript@2.5.1` with optional catch binding
* `collectVariableUsage` fixed a bug where method decorator had method's parameters in scope
## v2.8.0
* Compatibility with the latest typescript nightly
* Added `getIdentifierText` to unescape identifiers across typescript versions
## v2.7.1
**Bugfixes:**
* `isReassignmentTarget` don't return `true` for right side of assignment
## v2.7.0
**Features:**
* Added `isReassignmentTarget` utility
## v2.6.1
**Bugfixes:**
* `getDeclarationDomain` now returns `undefined` for Parameter in IndexSignature
* `collectVariableUsage` ignores Parameter in IndexSignature
## v2.6.0
**Bugfixes:**
* `collectVariableUsage`:
* don't merge imports with global declarations
* treat everything in a declaration file as exported if there is no explicit `export {};`
* `isExpressionValueUsed`: handle destructuring in `for...of`
**Features:**
* Added `getModifier` utility
* Added `DeclarationDomain.Import` to distinguish imports from other declarations
## v2.5.1
**Bugfixes:**
* `collectVariableUsage` ignore jump labels as in `break label;`
## v2.5.0
**Bugfixes:**
* `isFunctionWithBody` handles constructor overload correctly.
**Features:**
* Implemented `isExpressionValueUsed` to check whether the result of an expression is actually used.
* Implemented `getDeclarationDomain` to determine if a given declaration introduces a new symbol in the value or type domain.
**`collectVariableUses` is now usable**
* no longer ignores signatures and its parameters
* don't merge declarations and uses across domains
* no longer marks exceptions in catch clause or parameter properties as exported
* fixed exports of namespaces
* fixed scoping of ClassExpression name
* correcly handle ambient namespaces and module augmentations
* fixed how `: typeof foo` is handled for parameters and function return type
* **still WIP**: `export {Foo as Bar}` inside ambient namespaces and modules
## v2.4.0
**Bugfixes:**
* `getLineRanges`: `contentLength` now contains the correct line length when there are multiple consecutive line break characters
* `getTokenAtPosition`: don't match tokens that end at the specified position (because that's already outside of their range)
* deprecated the misnamed `isModfierFlagSet`, use the new `isModifierFlagSet` instead
**Features:**
* Added typeguard: `isJsDoc`
* Added experimental scope and usage analysis (`getUsageDomain` and `collectVariableUsage`)
## v2.3.0
**Bugfixes:**
* `forEachComment` no longer omits some comments when callback returns a truthy value
* `isPositionInComment` fixed false positive inside JSXText
**Features:**
* Added utility: `getCommentAtPosition`
## v2.2.0
**Bugfixes:**
* Fixed bit value of `SideEffectOptions.JsxElement` to be a power of 2
**Features:**
* Added utilities: `getTokenAtPosition` and `isPositionInComment`
## v2.1.0
**Features:**
* Added typeguard `isExpression`
* Added utilities: `hasSideEffects`, `getDeclarationOfBindingElement`
## v2.0.0
**Breaking Changes:**
* Dropped compatibility with `typescript@<2.1.0`
* Removed misnamed `isNumericliteral`, use `isNumericLiteral` instead (notice the uppercase L)
* Removed `isEnumLiteralType` which will cause compile errors with typescript@2.4.0
* Refactored directory structure: all imports that referenced subdirectories (e.g. `require('tsutils/src/typeguard')` will be broken
**Features:**
* New directory structure allows imports of typeguards or utils independently, e.g. (`require('tsutils/typeguard')`)
## v1.9.1
**Bugfixes:**
* `isObjectFlagSet` now uses the correct `objectFlags` property
## v1.9.0
**Bugfixes:**
* `getNextToken` no longer omits `EndOfFileToken` when there is no trivia before EOF. That means the only inputs where `getNextToken` returns `undefined` are `SourceFile` and `EndOfFileToken`
**Features**:
* Added typeguards for types
* Added utilities for flag checking: `isNodeFlagSet`, `isTypeFlagSet`, `isSymbolFlagSet`,`isObjectFlagSet`, `isModifierFlagSet`
## v1.8.0
**Features:**
* Support peer dependency of typescript nightlies of 2.4.0
* Added typeguards: `isJsxAttributes`, `isIntersectionTypeNode`, `isTypeOperatorNode`, `isTypePredicateNode`, `isTypeQueryNode`, `isUnionTypeNode`
## v1.7.0
**Bugfixes:**
* `isFunctionScopeBoundary` now handles Interfaces, TypeAliases, FunctionSignatures, etc
**Features:**
* Added utilities: `isThisParameter`, `isSameLine` and `isFunctionWithBody`
## v1.6.0
**Features:**
* Add `isValidPropertyAccess`, `isValidNumericLiteral` and `isValidPropertyName`
## v1.5.0
**Features:**
* Add `isValidIdentifier`
## v1.4.0
**Features:**
* Add `contentLength` property to the result of `getLineRanges`
## v1.3.0
**Bugfixes:**
* `canHaveLeadingTrivia`:
* Fix property access on undefined parent reference
* Fixes: [palantir/tslint#2330](https://github.com/palantir/tslint/issues/2330)
* `hasOwnThisReference`: now includes accessors on object literals
**Features:**
* Typeguards:
* isTypeParameterDeclaration
* isEnitityName
## v1.2.2
**Bugfixes:**
* `hasOwnThisReference`:
* exclude overload signatures of function declarations
* add method declarations on object literals
## v1.2.1
**Bugfixes:**
* Fix name of `isNumericLiteral`
## v1.2.0
**Features:**
* Typeguards:
* isEnumMember
* isExpressionWithTypeArguments
* isImportSpecifier
* Utilities:
* isJsDocKind, isTypeNodeKind
* Allow typescript@next in peerDependencies
## v1.1.0
**Bugfixes:**
* Fix isBlockScopeBoundary: Remove WithStatement, IfStatment, DoStatement and WhileStatement because they are no scope boundary whitout a block.
**Features:**
* Added more typeguards:
* isAssertionExpression
* isEmptyStatement
* isJsxAttributeLike
* isJsxOpeningLikeElement
* isNonNullExpression
* isSyntaxList
* Utilities:
* getNextToken, getPreviousToken
* hasOwnThisReference
* getLineRanges
## v1.0.0
**Features:**
* Initial implementation of typeguards
* Utilities:
* getChildOfKind
* isNodeKind, isAssignmentKind
* hasModifier, isParameterProperty, hasAccessModifier
* getPreviousStatement, getNextStatement
* getPropertyName
* forEachDestructuringIdentifier, forEachDeclaredVariable
* getVariableDeclarationKind, isBlockScopedVariableDeclarationList, isBlockScopedVariableDeclaration
* isScopeBoundary, isFunctionScopeBoundary, isBlockScopeBoundary
* forEachToken, forEachTokenWithTrivia, forEachComment
* endsControlFlow
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