# 2.13.0

**Features:**

* added support for `JsxFragment` introduced in typescript@2.6.2
* added corresponding typeguard functions

# 2.12.2

**Bugfixes:**

* `endsControlFlow`
  * added missing logic for labeled statement, iteration statements and try-catch
  * added missing logic for `break` and `continue` with labels
  * take all jump statements into account, not only the last statement
* `isValidIdentifier` and `isValidNumericLiteral` handle irregular whitespace
* `findImports` searches in ambient modules inside regular `.ts` files (not only `.d.ts`)
* `canHaveJsDoc` is now a typeguard

# 2.12.1

**Bugfixes:**

* `forEachTokenWithTrivia`
  * handles irregular whitespace and no longer visits some tokens twice
  * correctly calculates the range of JsxText

# 2.12.0

**API-Changes:**

* deprecated `ImportOptions` if favor of the new `ImportKind` enum

# 2.11.2

**Bugfixes:**

* `parseJsDocOfNode`: set correct `pos`, `end` and `parent` properties. Also affects `getJsDoc` of `EndOfFileToken`

# 2.11.1

**Bugfixes:**

* `collectVariableUsage`: correctly consider catch binding as block scoped declaration inside catch block

# 2.11.0

**Bugfixes:**

* `getJsDoc` now correctly returns JsDoc for `EndOfFileToken`

**Features:**

* added utility `parseJsDocOfNode`

# 2.10.0

**Features:**

* added utility `findImports` to find all kinds of imports in a source file

# 2.9.0

**Features:**

* added typeguard `isMappedTypeNode`
* added utilities `canHaveJsDoc` and `getJsDoc`

# 2.8.2

**Bugfixes:**

* `collectVariableUsage`: handle global augmentation like other module augmentations

# 2.8.1

**Bugfixes:**

* Support `typescript@2.5.1` with optional catch binding
* `collectVariableUsage` fixed a bug where method decorator had method's parameters in scope

# 2.8.0

* Compatibility with the latest typescript nightly
* Added `getIdentifierText` to unescape identifiers across typescript versions

# 2.7.1

**Bugfixes:**

* `isReassignmentTarget` don't return `true` for right side of assignment

# 2.7.0

**Features:**

* Added `isReassignmentTarget` utility

# 2.6.1

**Bugfixes:**

* `getDeclarationDomain` now returns `undefined` for Parameter in IndexSignature
* `collectVariableUsage` ignores Parameter in IndexSignature

# 2.6.0

**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

# 2.5.1

**Bugfixes:**

* `collectVariableUsage` ignore jump labels as in `break label;`

# 2.5.0

**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

# 2.4.0

**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`)

# 2.3.0

**Bugfixes:**

* `forEachComment` no longer omits some comments when callback returns a truthy value
* `isPositionInComment` fixed false positive inside JSXText

**Features:**

* Added utility: `getCommentAtPosition`

# 2.2.0

**Bugfixes:**

* Fixed bit value of `SideEffectOptions.JsxElement` to be a power of 2

**Features:**

* Added utilities: `getTokenAtPosition` and `isPositionInComment`

# 2.1.0

**Features:**

* Added typeguard `isExpression`
* Added utilities: `hasSideEffects`, `getDeclarationOfBindingElement`

# 2.0.0

**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')`)

# 1.9.1

**Bugfixes:**

* `isObjectFlagSet` now uses the correct `objectFlags` property

# 1.9.0

**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`

# 1.8.0

**Features:**

* Support peer dependency of typescript nightlies of 2.4.0
* Added typeguards: `isJsxAttributes`, `isIntersectionTypeNode`, `isTypeOperatorNode`, `isTypePredicateNode`, `isTypeQueryNode`, `isUnionTypeNode`

# 1.7.0

**Bugfixes:**

* `isFunctionScopeBoundary` now handles Interfaces, TypeAliases, FunctionSignatures, etc

**Features:**

* Added utilities: `isThisParameter`, `isSameLine` and `isFunctionWithBody`

# 1.6.0

**Features:**

* Add `isValidPropertyAccess`, `isValidNumericLiteral` and `isValidPropertyName`

# 1.5.0

**Features:**

* Add `isValidIdentifier`

# 1.4.0

**Features:**

* Add `contentLength` property to the result of `getLineRanges`

# 1.3.0

**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

# 1.2.2

**Bugfixes:**

* `hasOwnThisReference`:
  * exclude overload signatures of function declarations
  * add method declarations on object literals

# 1.2.1

**Bugfixes:**

* Fix name of `isNumericLiteral`

# 1.2.0

**Features:**

* Typeguards:
  * isEnumMember
  * isExpressionWithTypeArguments
  * isImportSpecifier
* Utilities:
  * isJsDocKind, isTypeNodeKind
* Allow typescript@next in peerDependencies

# 1.1.0

**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

# 1.0.0

**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