Package com.google.googlejavaformat.java

Class RemoveUnusedImports

java.lang.Object

com.google.googlejavaformat.java.RemoveUnusedImports

public class RemoveUnusedImports
extends Object

Removes unused imports from a source file. Imports that are only used in javadoc are also removed, and the references in javadoc are replaced with fully qualified names.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	RemoveUnusedImports.UnusedImportScanner

Constructor Summary

Constructors

Constructor	Description
RemoveUnusedImports()

Method Summary

Modifier and Type	Method	Description
private static String	applyReplacements(String source, com.google.common.collect.RangeMap<Integer,String> replacements)	Applies the replacements to the given source, and re-format any edited javadoc.
private static com.google.common.collect.RangeMap<Integer,String>	buildReplacements(String contents, com.sun.tools.javac.tree.JCTree.JCCompilationUnit unit, Set<String> usedNames, com.google.common.collect.Multimap<String,com.google.common.collect.Range<Integer>> usedInJavadoc)	Construct replacements to fix unused imports.
private static com.sun.tools.javac.tree.JCTree.JCFieldAccess	getQualifiedIdentifier(com.sun.tools.javac.tree.JCTree importTree)
private static String	getSimpleName(com.sun.tools.javac.tree.JCTree importTree)
private static boolean	isUnused(com.sun.tools.javac.tree.JCTree.JCCompilationUnit unit, Set<String> usedNames, com.google.common.collect.Multimap<String,com.google.common.collect.Range<Integer>> usedInJavadoc, com.sun.tools.javac.tree.JCTree importTree, String simpleName)
private static com.sun.tools.javac.tree.JCTree.JCCompilationUnit	parse(com.sun.tools.javac.util.Context context, String javaInput)
static String	removeUnusedImports(String contents)

Methods inherited from class java.lang.Object

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

Constructor Details

RemoveUnusedImports

public RemoveUnusedImports()

Method Details

removeUnusedImports

public static String removeUnusedImports(String contents)
                                  throws FormatterException

Throws:

FormatterException

parse

private static com.sun.tools.javac.tree.JCTree.JCCompilationUnit parse(com.sun.tools.javac.util.Context context,
 String javaInput)
                                                                throws FormatterException

Throws:

FormatterException

buildReplacements

private static com.google.common.collect.RangeMap<Integer,String> buildReplacements(String contents,
 com.sun.tools.javac.tree.JCTree.JCCompilationUnit unit,
 Set<String> usedNames,
 com.google.common.collect.Multimap<String,com.google.common.collect.Range<Integer>> usedInJavadoc)

Construct replacements to fix unused imports.

getSimpleName

private static String getSimpleName(com.sun.tools.javac.tree.JCTree importTree)

isUnused

private static boolean isUnused(com.sun.tools.javac.tree.JCTree.JCCompilationUnit unit,
 Set<String> usedNames,
 com.google.common.collect.Multimap<String,com.google.common.collect.Range<Integer>> usedInJavadoc,
 com.sun.tools.javac.tree.JCTree importTree,
 String simpleName)

getQualifiedIdentifier

private static com.sun.tools.javac.tree.JCTree.JCFieldAccess getQualifiedIdentifier(com.sun.tools.javac.tree.JCTree importTree)

applyReplacements

private static String applyReplacements(String source,
 com.google.common.collect.RangeMap<Integer,String> replacements)

Applies the replacements to the given source, and re-format any edited javadoc.