org.eclipse.jdt.core.dom.CompilationUnit#imports ( )源码实例Demo

@SuppressWarnings("unchecked")
@Override
public void endVisit(CompilationUnit compilationUnit) {
  List<ImportDeclaration> imports = compilationUnit.imports();
  for (ImportDeclaration importDeclaration : imports) {
    if (importDeclaration.isOnDemand()) {
      // Assume .* imports are always needed.
      continue;
    }
    SimpleName importedClass =
        importDeclaration.getName().isSimpleName()
            ? (SimpleName) importDeclaration.getName()
            : ((QualifiedName) importDeclaration.getName()).getName();

    if (!referencedNames.contains(importedClass.getIdentifier())) {
      unusedImports.add(importDeclaration);
    }
  }
}
 

@Override
public boolean visit(final CompilationUnit node) {
	if (node.getPackage() != null) {
		currentPackageName = node.getPackage().getName()
				.getFullyQualifiedName();
	}
	for (final Object decl : node.imports()) {
		final ImportDeclaration imp = (ImportDeclaration) decl;
		if (!imp.isStatic()) {
			final String fqn = imp.getName().getFullyQualifiedName();
			importedNames.put(fqn.substring(fqn.lastIndexOf('.') + 1),
					fqn);
		}
	}
	return true;
}
 

protected void processCompilationUnit(String sourceFilePath, CompilationUnit compilationUnit) {
	PackageDeclaration packageDeclaration = compilationUnit.getPackage();
	String packageName = null;
	if(packageDeclaration != null)
		packageName = packageDeclaration.getName().getFullyQualifiedName();
	else
		packageName = "";
	
	List<ImportDeclaration> imports = compilationUnit.imports();
	List<String> importedTypes = new ArrayList<String>();
	for(ImportDeclaration importDeclaration : imports) {
		importedTypes.add(importDeclaration.getName().getFullyQualifiedName());
	}
	List<AbstractTypeDeclaration> topLevelTypeDeclarations = compilationUnit.types();
       for(AbstractTypeDeclaration abstractTypeDeclaration : topLevelTypeDeclarations) {
       	if(abstractTypeDeclaration instanceof TypeDeclaration) {
       		TypeDeclaration topLevelTypeDeclaration = (TypeDeclaration)abstractTypeDeclaration;
       		processTypeDeclaration(compilationUnit, topLevelTypeDeclaration, packageName, sourceFilePath, importedTypes);
       	}
       	else if(abstractTypeDeclaration instanceof EnumDeclaration) {
       		EnumDeclaration enumDeclaration = (EnumDeclaration)abstractTypeDeclaration;
       		processEnumDeclaration(compilationUnit, enumDeclaration, packageName, sourceFilePath, importedTypes);
       	}
       }
}
 

@Override
public boolean visit(final CompilationUnit node) {
	if (node.getPackage() != null) {
		currentPackageName = node.getPackage().getName()
				.getFullyQualifiedName();
	}
	for (final Object decl : node.imports()) {
		final ImportDeclaration imp = (ImportDeclaration) decl;
		if (!imp.isStatic()) {
			final String fqn = imp.getName().getFullyQualifiedName();
			importedNames.put(fqn.substring(fqn.lastIndexOf('.') + 1),
					fqn);
		}
	}
	return true;
}
 

public static StubTypeContext createStubTypeContext(ICompilationUnit cu, CompilationUnit root, int focalPosition) throws CoreException {
	StringBuffer bufBefore= new StringBuffer();
	StringBuffer bufAfter= new StringBuffer();

	int introEnd= 0;
	PackageDeclaration pack= root.getPackage();
	if (pack != null)
		introEnd= pack.getStartPosition() + pack.getLength();
	List<ImportDeclaration> imports= root.imports();
	if (imports.size() > 0) {
		ImportDeclaration lastImport= imports.get(imports.size() - 1);
		introEnd= lastImport.getStartPosition() + lastImport.getLength();
	}
	bufBefore.append(cu.getBuffer().getText(0, introEnd));

	fillWithTypeStubs(bufBefore, bufAfter, focalPosition, root.types());
	bufBefore.append(' ');
	bufAfter.insert(0, ' ');
	return new StubTypeContext(cu, bufBefore.toString(), bufAfter.toString());
}
 

private IRegion evaluateReplaceRange(CompilationUnit root) {
	List imports= root.imports();
	if (!imports.isEmpty()) {
		ImportDeclaration first= (ImportDeclaration) imports.get(0);
		ImportDeclaration last= (ImportDeclaration) imports.get(imports.size() - 1);

		int startPos= first.getStartPosition(); // no extended range for first: bug 121428
		int endPos= root.getExtendedStartPosition(last) + root.getExtendedLength(last);
		int endLine= root.getLineNumber(endPos);
		if (endLine > 0) {
			int nextLinePos= root.getPosition(endLine + 1, 0);
			if (nextLinePos >= 0) {
				int firstTypePos= getFirstTypeBeginPos(root);
				if (firstTypePos != -1 && firstTypePos < nextLinePos) {
					endPos= firstTypePos;
				} else {
					endPos= nextLinePos;
				}
			}
		}
		return new Region(startPos, endPos - startPos);
	} else {
		int start= getPackageStatementEndPos(root);
		return new Region(start, 0);
	}
}
 

@Override
public boolean visit(final CompilationUnit node) {
	if (node.getPackage() != null) {
		currentPackageName = node.getPackage().getName()
				.getFullyQualifiedName();
	}
	for (final Object decl : node.imports()) {
		final ImportDeclaration imp = (ImportDeclaration) decl;
		if (!imp.isStatic()) {
			final String fqn = imp.getName().getFullyQualifiedName();
			importedNames.put(fqn.substring(fqn.lastIndexOf('.') + 1),
					fqn);
		}
	}
	return true;
}
 

private Set<String> getExistingImports(CompilationUnit root) {
	List<ImportDeclaration> imports= root.imports();
	Set<String> res= new HashSet<String>(imports.size());
	for (int i= 0; i < imports.size(); i++) {
		res.add(ASTNodes.asString(imports.get(i)));
	}
	return res;
}