本文整理汇总了Java中org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment类的典型用法代码示例。如果您正苦于以下问题:Java IExpressionFragment类的具体用法?Java IExpressionFragment怎么用?Java IExpressionFragment使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
IExpressionFragment类属于org.eclipse.jdt.internal.corext.dom.fragments包,在下文中一共展示了IExpressionFragment类的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: isLiteralNodeSelected
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private boolean isLiteralNodeSelected() throws JavaModelException {
IExpressionFragment fragment = getSelectedExpression();
if (fragment == null) return false;
Expression expression = fragment.getAssociatedExpression();
if (expression == null) return false;
switch (expression.getNodeType()) {
case ASTNode.BOOLEAN_LITERAL:
case ASTNode.CHARACTER_LITERAL:
case ASTNode.NULL_LITERAL:
case ASTNode.NUMBER_LITERAL:
return true;
default:
return false;
}
}
示例2: checkInitializer
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private RefactoringStatus checkInitializer() {
Expression initializer = getInitializer();
if (initializer == null)
return RefactoringStatus.createStatus(
RefactoringStatus.FATAL,
RefactoringCoreMessages.InlineConstantRefactoring_blank_finals,
null,
Corext.getPluginId(),
RefactoringStatusCodes.CANNOT_INLINE_BLANK_FINAL,
null);
fInitializerAllStaticFinal =
ConstantChecks.isStaticFinalConstant(
(IExpressionFragment) ASTFragmentFactory.createFragmentForFullSubtree(initializer));
fInitializerChecked = true;
return new RefactoringStatus();
}
示例3: visit
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
@Override
public boolean visit(MethodInvocation node) {
if (node.getExpression() == null) {
visitName(node.getName());
} else {
fResult &=
new LoadTimeConstantChecker(
(IExpressionFragment)
ASTFragmentFactory.createFragmentForFullSubtree(node.getExpression()))
.check();
}
return false;
}
示例4: checkSelection
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private RefactoringStatus checkSelection(IProgressMonitor pm) throws JavaModelException {
try {
pm.beginTask("", 2); // $NON-NLS-1$
IExpressionFragment selectedExpression = getSelectedExpression();
if (selectedExpression == null) {
String message = RefactoringCoreMessages.ExtractConstantRefactoring_select_expression;
return CodeRefactoringUtil.checkMethodSyntaxErrors(
fSelectionStart, fSelectionLength, fCuRewrite.getRoot(), message);
}
pm.worked(1);
RefactoringStatus result = new RefactoringStatus();
result.merge(checkExpression());
if (result.hasFatalError()) return result;
pm.worked(1);
return result;
} finally {
pm.done();
}
}
示例5: depends
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private static boolean depends(IExpressionFragment selected, BodyDeclaration bd) {
/* We currently consider selected to depend on bd only if db includes a declaration
* of a static field on which selected depends.
*
* A more accurate strategy might be to also check if bd contains (or is) a
* static initializer containing code which changes the value of a static field on
* which selected depends. However, if a static is written to multiple times within
* during class initialization, it is difficult to predict which value should be used.
* This would depend on which value is used by expressions instances for which the new
* constant will be substituted, and there may be many of these; in each, the
* static field in question may have taken on a different value (if some of these uses
* occur within static initializers).
*/
if (bd instanceof FieldDeclaration) {
FieldDeclaration fieldDecl = (FieldDeclaration) bd;
for (Iterator<VariableDeclarationFragment> fragments = fieldDecl.fragments().iterator();
fragments.hasNext(); ) {
VariableDeclarationFragment fragment = fragments.next();
SimpleName staticFieldName = fragment.getName();
if (selected.getSubFragmentsMatching(
ASTFragmentFactory.createFragmentForFullSubtree(staticFieldName))
.length
!= 0) return true;
}
}
return false;
}
示例6: initializeSelectedExpression
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private void initializeSelectedExpression(CompilationUnitRewrite cuRewrite) throws JavaModelException {
IASTFragment fragment= ASTFragmentFactory.createFragmentForSourceRange(
new SourceRange(fSelectionStart, fSelectionLength), cuRewrite.getRoot(), cuRewrite.getCu());
if (! (fragment instanceof IExpressionFragment))
return;
//TODO: doesn't handle selection of partial Expressions
Expression expression= ((IExpressionFragment) fragment).getAssociatedExpression();
if (fragment.getStartPosition() != expression.getStartPosition()
|| fragment.getLength() != expression.getLength())
return;
if (Checks.isInsideJavadoc(expression))
return;
//TODO: exclude invalid selections
if (Checks.isEnumCase(expression.getParent()))
return;
fSelectedExpression= expression;
}
开发者ID:trylimits,项目名称:Eclipse-Postfix-Code-Completion,代码行数:22,代码来源:IntroduceParameterRefactoring.java
示例7: isLiteralNodeSelected
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private boolean isLiteralNodeSelected() throws JavaModelException {
IExpressionFragment fragment= getSelectedExpression();
if (fragment == null)
return false;
Expression expression= fragment.getAssociatedExpression();
if (expression == null)
return false;
switch (expression.getNodeType()) {
case ASTNode.BOOLEAN_LITERAL:
case ASTNode.CHARACTER_LITERAL:
case ASTNode.NULL_LITERAL:
case ASTNode.NUMBER_LITERAL:
return true;
default:
return false;
}
}
示例8: checkSelection
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private RefactoringStatus checkSelection(IProgressMonitor pm) throws JavaModelException {
try {
pm.beginTask("", 2); //$NON-NLS-1$
IExpressionFragment selectedExpression= getSelectedExpression();
if (selectedExpression == null) {
String message= RefactoringCoreMessages.ExtractConstantRefactoring_select_expression;
return CodeRefactoringUtil.checkMethodSyntaxErrors(fSelectionStart, fSelectionLength, fCuRewrite.getRoot(), message);
}
pm.worked(1);
RefactoringStatus result= new RefactoringStatus();
result.merge(checkExpression());
if (result.hasFatalError())
return result;
pm.worked(1);
return result;
} finally {
pm.done();
}
}
示例9: isLiteralNodeSelected
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private boolean isLiteralNodeSelected() throws JavaModelException {
IExpressionFragment fragment= getSelectedExpression();
if (fragment == null)
return false;
Expression expression= fragment.getAssociatedExpression();
if (expression == null)
return false;
switch (expression.getNodeType()) {
case ASTNode.BOOLEAN_LITERAL :
case ASTNode.CHARACTER_LITERAL :
case ASTNode.NULL_LITERAL :
case ASTNode.NUMBER_LITERAL :
return true;
default :
return false;
}
}
示例10: checkExpression
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private RefactoringStatus checkExpression() throws JavaModelException {
RefactoringStatus result= new RefactoringStatus();
result.merge(checkExpressionBinding());
if(result.hasFatalError())
return result;
checkAllStaticFinal();
IExpressionFragment selectedExpression= getSelectedExpression();
Expression associatedExpression= selectedExpression.getAssociatedExpression();
if (associatedExpression instanceof NullLiteral)
result.merge(RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractConstantRefactoring_null_literals));
else if (!ConstantChecks.isLoadTimeConstant(selectedExpression))
result.merge(RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractConstantRefactoring_not_load_time_constant));
else if (associatedExpression instanceof SimpleName) {
if (associatedExpression.getParent() instanceof QualifiedName && associatedExpression.getLocationInParent() == QualifiedName.NAME_PROPERTY
|| associatedExpression.getParent() instanceof FieldAccess && associatedExpression.getLocationInParent() == FieldAccess.NAME_PROPERTY)
return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractConstantRefactoring_select_expression);
}
return result;
}
示例11: depends
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private static boolean depends(IExpressionFragment selected, BodyDeclaration bd) {
/* We currently consider selected to depend on bd only if db includes a declaration
* of a static field on which selected depends.
*
* A more accurate strategy might be to also check if bd contains (or is) a
* static initializer containing code which changes the value of a static field on
* which selected depends. However, if a static is written to multiple times within
* during class initialization, it is difficult to predict which value should be used.
* This would depend on which value is used by expressions instances for which the new
* constant will be substituted, and there may be many of these; in each, the
* static field in question may have taken on a different value (if some of these uses
* occur within static initializers).
*/
if(bd instanceof FieldDeclaration) {
FieldDeclaration fieldDecl = (FieldDeclaration) bd;
for(Iterator<VariableDeclarationFragment> fragments = fieldDecl.fragments().iterator(); fragments.hasNext();) {
VariableDeclarationFragment fragment = fragments.next();
SimpleName staticFieldName = fragment.getName();
if(selected.getSubFragmentsMatching(ASTFragmentFactory.createFragmentForFullSubtree(staticFieldName)).length != 0)
return true;
}
}
return false;
}
示例12: getFirstReplacedExpression
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private IExpressionFragment getFirstReplacedExpression() throws JavaModelException {
if (!fReplaceAllOccurrences) return getSelectedExpression();
IASTFragment[] nodesToReplace = retainOnlyReplacableMatches(getMatchingFragments());
if (nodesToReplace.length == 0) return getSelectedExpression();
Comparator<IASTFragment> comparator =
new Comparator<IASTFragment>() {
public int compare(IASTFragment o1, IASTFragment o2) {
return o1.getStartPosition() - o2.getStartPosition();
}
};
Arrays.sort(nodesToReplace, comparator);
return (IExpressionFragment) nodesToReplace[0];
}
示例13: getExcludedVariableNames
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private String[] getExcludedVariableNames() {
if (fExcludedVariableNames == null) {
try {
IExpressionFragment expr = getSelectedExpression();
Collection<String> takenNames =
new ScopeAnalyzer(fCuRewrite.getRoot())
.getUsedVariableNames(expr.getStartPosition(), expr.getLength());
fExcludedVariableNames = takenNames.toArray(new String[takenNames.size()]);
} catch (JavaModelException e) {
fExcludedVariableNames = new String[0];
}
}
return fExcludedVariableNames;
}
示例14: checkExpression
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private RefactoringStatus checkExpression() throws JavaModelException {
RefactoringStatus result = new RefactoringStatus();
result.merge(checkExpressionBinding());
if (result.hasFatalError()) return result;
checkAllStaticFinal();
IExpressionFragment selectedExpression = getSelectedExpression();
Expression associatedExpression = selectedExpression.getAssociatedExpression();
if (associatedExpression instanceof NullLiteral)
result.merge(
RefactoringStatus.createFatalErrorStatus(
RefactoringCoreMessages.ExtractConstantRefactoring_null_literals));
else if (!ConstantChecks.isLoadTimeConstant(selectedExpression))
result.merge(
RefactoringStatus.createFatalErrorStatus(
RefactoringCoreMessages.ExtractConstantRefactoring_not_load_time_constant));
else if (associatedExpression instanceof SimpleName) {
if (associatedExpression.getParent() instanceof QualifiedName
&& associatedExpression.getLocationInParent() == QualifiedName.NAME_PROPERTY
|| associatedExpression.getParent() instanceof FieldAccess
&& associatedExpression.getLocationInParent() == FieldAccess.NAME_PROPERTY)
return RefactoringStatus.createFatalErrorStatus(
RefactoringCoreMessages.ExtractConstantRefactoring_select_expression);
}
return result;
}
示例15: createConstantDeclaration
import org.eclipse.jdt.internal.corext.dom.fragments.IExpressionFragment; //导入依赖的package包/类
private void createConstantDeclaration() throws CoreException {
Type type = getConstantType();
IExpressionFragment fragment = getSelectedExpression();
Expression initializer =
getSelectedExpression().createCopyTarget(fCuRewrite.getASTRewrite(), true);
AST ast = fCuRewrite.getAST();
VariableDeclarationFragment variableDeclarationFragment = ast.newVariableDeclarationFragment();
variableDeclarationFragment.setName(ast.newSimpleName(fConstantName));
variableDeclarationFragment.setInitializer(initializer);
FieldDeclaration fieldDeclaration = ast.newFieldDeclaration(variableDeclarationFragment);
fieldDeclaration.setType(type);
Modifier.ModifierKeyword accessModifier = Modifier.ModifierKeyword.toKeyword(fVisibility);
if (accessModifier != null) fieldDeclaration.modifiers().add(ast.newModifier(accessModifier));
fieldDeclaration.modifiers().add(ast.newModifier(Modifier.ModifierKeyword.STATIC_KEYWORD));
fieldDeclaration.modifiers().add(ast.newModifier(Modifier.ModifierKeyword.FINAL_KEYWORD));
boolean createComments =
JavaPreferencesSettings.getCodeGenerationSettings(fCu.getJavaProject()).createComments;
if (createComments) {
String comment =
CodeGeneration.getFieldComment(
fCu, getConstantTypeName(), fConstantName, StubUtility.getLineDelimiterUsed(fCu));
if (comment != null && comment.length() > 0) {
Javadoc doc =
(Javadoc) fCuRewrite.getASTRewrite().createStringPlaceholder(comment, ASTNode.JAVADOC);
fieldDeclaration.setJavadoc(doc);
}
}
AbstractTypeDeclaration parent = getContainingTypeDeclarationNode();
ListRewrite listRewrite =
fCuRewrite.getASTRewrite().getListRewrite(parent, parent.getBodyDeclarationsProperty());
TextEditGroup msg =
fCuRewrite.createGroupDescription(
RefactoringCoreMessages.ExtractConstantRefactoring_declare_constant);
if (insertFirst()) {
listRewrite.insertFirst(fieldDeclaration, msg);
} else {
listRewrite.insertAfter(fieldDeclaration, getNodeToInsertConstantDeclarationAfter(), msg);
}
if (fLinkedProposalModel != null) {
ASTRewrite rewrite = fCuRewrite.getASTRewrite();
LinkedProposalPositionGroup nameGroup = fLinkedProposalModel.getPositionGroup(KEY_NAME, true);
nameGroup.addPosition(rewrite.track(variableDeclarationFragment.getName()), true);
String[] nameSuggestions = guessConstantNames();
if (nameSuggestions.length > 0 && !nameSuggestions[0].equals(fConstantName)) {
nameGroup.addProposal(fConstantName, null, nameSuggestions.length + 1);
}
for (int i = 0; i < nameSuggestions.length; i++) {
nameGroup.addProposal(nameSuggestions[i], null, nameSuggestions.length - i);
}
LinkedProposalPositionGroup typeGroup = fLinkedProposalModel.getPositionGroup(KEY_TYPE, true);
typeGroup.addPosition(rewrite.track(type), true);
ITypeBinding typeBinding = guessBindingForReference(fragment.getAssociatedExpression());
if (typeBinding != null) {
ITypeBinding[] relaxingTypes = ASTResolving.getNarrowingTypes(ast, typeBinding);
for (int i = 0; i < relaxingTypes.length; i++) {
typeGroup.addProposal(relaxingTypes[i], fCuRewrite.getCu(), relaxingTypes.length - i);
}
}
boolean isInterface =
parent.resolveBinding() != null && parent.resolveBinding().isInterface();
ModifierCorrectionSubProcessor.installLinkedVisibilityProposals(
fLinkedProposalModel, rewrite, fieldDeclaration.modifiers(), isInterface);
}
}