Package org.codehaus.groovy.transform.stc

## Class SharedVariableCollector

- java.lang.Object
- - org.codehaus.groovy.ast.CodeVisitorSupport
  - - org.codehaus.groovy.ast.ClassCodeVisitorSupport
    - - org.codehaus.groovy.transform.stc.SharedVariableCollector

- All Implemented Interfaces:
    `GroovyClassVisitor`, `GroovyCodeVisitor`, `ErrorCollecting`

      public class SharedVariableCollector
      extends ClassCodeVisitorSupport

  A visitor which collects the list of variable expressions which are closure shared.

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `SharedVariableCollector​(SourceUnit unit)` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `Set<VariableExpression>` | `getClosureSharedExpressions()` |
    `protected SourceUnit` | `getSourceUnit()` |
    `void` | `visitVariableExpression​(VariableExpression expression)` |

    - ### Methods inherited from class org.codehaus.groovy.ast.ClassCodeVisitorSupport

      `addError, visitAnnotation, visitAnnotations, visitAssertStatement, visitBlockStatement, visitBreakStatement, visitCaseStatement, visitCatchStatement, visitClass, visitClassCodeContainer, visitConstructor, visitConstructorOrMethod, visitContinueStatement, visitDeclarationExpression, visitDoWhileLoop, visitExpressionStatement, visitField, visitForLoop, visitIfElse, visitImports, visitMethod, visitObjectInitializerStatements, visitPackage, visitProperty, visitReturnStatement, visitStatement, visitSwitch, visitSynchronizedStatement, visitThrowStatement, visitTryCatchFinally, visitWhileLoop`

    - ### Methods inherited from class org.codehaus.groovy.ast.CodeVisitorSupport

      `afterSwitchConditionExpressionVisited, visitArgumentlistExpression, visitArrayExpression, visitAttributeExpression, visitBinaryExpression, visitBitwiseNegationExpression, visitBooleanExpression, visitBytecodeExpression, visitCastExpression, visitClassExpression, visitClosureExpression, visitClosureListExpression, visitConstantExpression, visitConstructorCallExpression, visitEmptyStatement, visitFieldExpression, visitGStringExpression, visitLambdaExpression, visitListExpression, visitMapEntryExpression, visitMapExpression, visitMethodCallExpression, visitMethodPointerExpression, visitMethodReferenceExpression, visitNotExpression, visitPostfixExpression, visitPrefixExpression, visitPropertyExpression, visitRangeExpression, visitShortTernaryExpression, visitSpreadExpression, visitSpreadMapExpression, visitStaticMethodCallExpression, visitTernaryExpression, visitTupleExpression, visitUnaryMinusExpression, visitUnaryPlusExpression`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

    - ### Methods inherited from interface org.codehaus.groovy.ast.GroovyCodeVisitor

      `visitEmptyExpression, visitListOfExpressions`

- - ### Constructor Detail

    - #### SharedVariableCollector

          public SharedVariableCollector​(SourceUnit unit)

  - ### Method Detail

    - #### getSourceUnit

          protected SourceUnit getSourceUnit()

      Specified by:
        `getSourceUnit` in class `ClassCodeVisitorSupport`

    - #### getClosureSharedExpressions

          public Set<VariableExpression> getClosureSharedExpressions()

    - #### visitVariableExpression

          public void visitVariableExpression​(VariableExpression expression)

      Specified by:
        `visitVariableExpression` in interface `GroovyCodeVisitor`
      Overrides:
        `visitVariableExpression` in class `CodeVisitorSupport`