Examples with IBinding org.eclipse.jdt.core.dom.IBinding used on opensource projects

Example 26 with IBinding

use of org.eclipse.jdt.core.dom.IBinding in project che by eclipse.

the class ConvertForLoopOperation method validateLengthQuery.

/*
	 * Must be one of:
	 * <ul>
	 * <li>[result].length</li>
	 * </ul>
	 */
private boolean validateLengthQuery(Expression lengthQuery) {
    if (lengthQuery instanceof QualifiedName) {
        QualifiedName qualifiedName = (QualifiedName) lengthQuery;
        SimpleName name = qualifiedName.getName();
        if (!LENGTH_QUERY.equals(name.getIdentifier()))
            return false;
        Name arrayAccess = qualifiedName.getQualifier();
        ITypeBinding accessType = arrayAccess.resolveTypeBinding();
        if (accessType == null)
            return false;
        if (!accessType.isArray())
            return false;
        IBinding arrayBinding = arrayAccess.resolveBinding();
        if (arrayBinding == null)
            return false;
        fArrayBinding = arrayBinding;
        fArrayAccess = arrayAccess;
        return true;
    } else if (lengthQuery instanceof FieldAccess) {
        FieldAccess fieldAccess = (FieldAccess) lengthQuery;
        SimpleName name = fieldAccess.getName();
        if (!LENGTH_QUERY.equals(name.getIdentifier()))
            return false;
        Expression arrayAccess = fieldAccess.getExpression();
        ITypeBinding accessType = arrayAccess.resolveTypeBinding();
        if (accessType == null)
            return false;
        if (!accessType.isArray())
            return false;
        IBinding arrayBinding = getBinding(arrayAccess);
        if (arrayBinding == null)
            return false;
        fArrayBinding = arrayBinding;
        fArrayAccess = arrayAccess;
        return true;
    }
    return false;
}

Example 27 with IBinding

use of org.eclipse.jdt.core.dom.IBinding in project che by eclipse.

the class NullAnnotationsFix method isComplainingAboutArgument.

/* recognizes any simple name referring to a parameter binding */
public static boolean isComplainingAboutArgument(ASTNode selectedNode) {
    if (!(selectedNode instanceof SimpleName))
        return false;
    SimpleName nameNode = (SimpleName) selectedNode;
    IBinding binding = nameNode.resolveBinding();
    if (binding.getKind() == IBinding.VARIABLE && ((IVariableBinding) binding).isParameter())
        return true;
    VariableDeclaration argDecl = (VariableDeclaration) ASTNodes.getParent(selectedNode, VariableDeclaration.class);
    if (argDecl != null)
        binding = argDecl.resolveBinding();
    if (binding.getKind() == IBinding.VARIABLE && ((IVariableBinding) binding).isParameter())
        return true;
    return false;
}

Example 28 with IBinding

use of org.eclipse.jdt.core.dom.IBinding in project che by eclipse.

the class UnusedCodeFix method createUnusedMemberFix.

public static UnusedCodeFix createUnusedMemberFix(CompilationUnit compilationUnit, IProblemLocation problem, boolean removeAllAssignements) {
    if (isUnusedMember(problem)) {
        SimpleName name = getUnusedName(compilationUnit, problem);
        if (name != null) {
            IBinding binding = name.resolveBinding();
            if (binding != null) {
                if (isFormalParameterInEnhancedForStatement(name))
                    return null;
                String label = getDisplayString(name, binding, removeAllAssignements);
                RemoveUnusedMemberOperation operation = new RemoveUnusedMemberOperation(new SimpleName[] { name }, removeAllAssignements);
                return new UnusedCodeFix(label, compilationUnit, new CompilationUnitRewriteOperation[] { operation }, getCleanUpOptions(binding, removeAllAssignements));
            }
        }
    }
    return null;
}

Example 29 with IBinding

use of org.eclipse.jdt.core.dom.IBinding in project che by eclipse.

the class UnusedCodeFix method createCleanUp.

public static ICleanUpFix createCleanUp(CompilationUnit compilationUnit, IProblemLocation[] problems, boolean removeUnusedPrivateMethods, boolean removeUnusedPrivateConstructors, boolean removeUnusedPrivateFields, boolean removeUnusedPrivateTypes, boolean removeUnusedLocalVariables, boolean removeUnusedImports, boolean removeUnusedCast) {
    List<CompilationUnitRewriteOperation> result = new ArrayList<CompilationUnitRewriteOperation>();
    Hashtable<ASTNode, List<SimpleName>> variableDeclarations = new Hashtable<ASTNode, List<SimpleName>>();
    LinkedHashSet<CastExpression> unnecessaryCasts = new LinkedHashSet<CastExpression>();
    for (int i = 0; i < problems.length; i++) {
        IProblemLocation problem = problems[i];
        int id = problem.getProblemId();
        if (removeUnusedImports && (id == IProblem.UnusedImport || id == IProblem.DuplicateImport || id == IProblem.ConflictingImport || id == IProblem.CannotImportPackage || id == IProblem.ImportNotFound)) {
            ImportDeclaration node = UnusedCodeFix.getImportDeclaration(problem, compilationUnit);
            if (node != null) {
                result.add(new RemoveImportOperation(node));
            }
        }
        if ((removeUnusedPrivateMethods && id == IProblem.UnusedPrivateMethod) || (removeUnusedPrivateConstructors && id == IProblem.UnusedPrivateConstructor) || (removeUnusedPrivateTypes && id == IProblem.UnusedPrivateType)) {
            SimpleName name = getUnusedName(compilationUnit, problem);
            if (name != null) {
                IBinding binding = name.resolveBinding();
                if (binding != null) {
                    result.add(new RemoveUnusedMemberOperation(new SimpleName[] { name }, false));
                }
            }
        }
        if ((removeUnusedLocalVariables && id == IProblem.LocalVariableIsNeverUsed) || (removeUnusedPrivateFields && id == IProblem.UnusedPrivateField)) {
            SimpleName name = getUnusedName(compilationUnit, problem);
            if (name != null) {
                IBinding binding = name.resolveBinding();
                if (binding instanceof IVariableBinding && !isFormalParameterInEnhancedForStatement(name) && (!((IVariableBinding) binding).isField() || isSideEffectFree(name, compilationUnit))) {
                    VariableDeclarationFragment parent = (VariableDeclarationFragment) ASTNodes.getParent(name, VariableDeclarationFragment.class);
                    if (parent != null) {
                        ASTNode varDecl = parent.getParent();
                        if (!variableDeclarations.containsKey(varDecl)) {
                            variableDeclarations.put(varDecl, new ArrayList<SimpleName>());
                        }
                        variableDeclarations.get(varDecl).add(name);
                    } else {
                        result.add(new RemoveUnusedMemberOperation(new SimpleName[] { name }, false));
                    }
                }
            }
        }
        if (removeUnusedCast && id == IProblem.UnnecessaryCast) {
            ASTNode selectedNode = problem.getCoveringNode(compilationUnit);
            ASTNode curr = selectedNode;
            while (curr instanceof ParenthesizedExpression) {
                curr = ((ParenthesizedExpression) curr).getExpression();
            }
            if (curr instanceof CastExpression) {
                unnecessaryCasts.add((CastExpression) curr);
            }
        }
    }
    for (Iterator<ASTNode> iter = variableDeclarations.keySet().iterator(); iter.hasNext(); ) {
        ASTNode node = iter.next();
        List<SimpleName> names = variableDeclarations.get(node);
        result.add(new RemoveUnusedMemberOperation(names.toArray(new SimpleName[names.size()]), false));
    }
    if (unnecessaryCasts.size() > 0)
        result.add(new RemoveAllCastOperation(unnecessaryCasts));
    if (result.size() == 0)
        return null;
    return new UnusedCodeFix(FixMessages.UnusedCodeFix_change_name, compilationUnit, result.toArray(new CompilationUnitRewriteOperation[result.size()]));
}

Example 30 with IBinding

use of org.eclipse.jdt.core.dom.IBinding in project che by eclipse.

the class Checks method isEnumCase.

public static boolean isEnumCase(ASTNode node) {
    if (node instanceof SwitchCase) {
        final SwitchCase caze = (SwitchCase) node;
        final Expression expression = caze.getExpression();
        if (expression instanceof Name) {
            final Name name = (Name) expression;
            final IBinding binding = name.resolveBinding();
            if (binding instanceof IVariableBinding) {
                IVariableBinding variableBinding = (IVariableBinding) binding;
                return variableBinding.isEnumConstant();
            }
        }
    }
    return false;
}