Package com.intellij.codeInsight.editorActions

Class DeclarationJoinLinesHandler

java.lang.Object

com.intellij.codeInsight.editorActions.DeclarationJoinLinesHandler

All Implemented Interfaces:

JoinLinesHandlerDelegate

public class DeclarationJoinLinesHandler
extends java.lang.Object
implements JoinLinesHandlerDelegate

Field Summary

Fields inherited from interface com.intellij.codeInsight.editorActions.JoinLinesHandlerDelegate

CANNOT_JOIN, EP_NAME

Constructor Summary

Constructors

Constructor and Description
DeclarationJoinLinesHandler()

Method Summary

Modifier and Type	Method and Description
static PsiLocalVariable	copyVarWithInitializer(PsiLocalVariable origVar, PsiExpression initializer)
static PsiExpression	getInitializerExpression(PsiExpression initializer, PsiAssignmentExpression assignment)
static PsiExpression	getInitializerExpression(PsiLocalVariable var, PsiAssignmentExpression assignment) Returns an updated initializer after joining with given assignment
static PsiLocalVariable	joinDeclarationAndAssignment(PsiLocalVariable variable, PsiAssignmentExpression assignment) Join declaration and assignment
int	tryJoinLines(Document document, PsiFile file, int start, int end) Tries to join lines at the specified position of the specified file.

Methods inherited from class java.lang.Object

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

Constructor Detail

DeclarationJoinLinesHandler

public DeclarationJoinLinesHandler()

Method Detail

tryJoinLines

public int tryJoinLines(Document document,
                        PsiFile file,
                        int start,
                        int end)

Description copied from interface: JoinLinesHandlerDelegate

Tries to join lines at the specified position of the specified file. Method is called on a document where part of whitespace between lines is already stripped, and it has a chance to smooth out the join point.

Specified by:

tryJoinLines in interface JoinLinesHandlerDelegate

Parameters:

document - where the lines are

file - where the lines are

start - offset where the whitespace between lines starts

end - offset where the whitespace between lines ends

Returns:

the position to place the caret after the operation, or JoinLinesHandlerDelegate.CANNOT_JOIN if this handler was not able to perform the operation.

getInitializerExpression

public static PsiExpression getInitializerExpression(PsiLocalVariable var,
                                                     PsiAssignmentExpression assignment)

Returns an updated initializer after joining with given assignment

Parameters:

var - variable which initializer should be updated

assignment - assignment to merge into the initializer

Returns:

updated initializer or null if operation cannot be performed (e.g. code is incomplete)

getInitializerExpression

public static PsiExpression getInitializerExpression(PsiExpression initializer,
                                                     PsiAssignmentExpression assignment)

copyVarWithInitializer

public static PsiLocalVariable copyVarWithInitializer(PsiLocalVariable origVar,
                                                      PsiExpression initializer)

joinDeclarationAndAssignment

public static PsiLocalVariable joinDeclarationAndAssignment(PsiLocalVariable variable,
                                                            PsiAssignmentExpression assignment)

Join declaration and assignment

Parameters:

variable - variable

assignment - assignment (assuming its parent is expression statement)

Returns:

new variable