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

Example 11 with SimpleName

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

the class ExtractToNullCheckedLocalProposal method getRewrite.

@Override
protected ASTRewrite getRewrite() throws CoreException {
    // infrastructure:
    AST ast = this.compilationUnit.getAST();
    ASTRewrite rewrite = ASTRewrite.create(ast);
    ImportRewrite imports = ImportRewrite.create(this.compilationUnit, true);
    TextEditGroup group = new TextEditGroup(FixMessages.ExtractToNullCheckedLocalProposal_extractCheckedLocal_editName);
    LinkedProposalPositionGroup localNameGroup = new LinkedProposalPositionGroup(LOCAL_NAME_POSITION_GROUP);
    getLinkedProposalModel().addPositionGroup(localNameGroup);
    // AST context:
    Statement origStmt = (Statement) ASTNodes.getParent(this.fieldReference, Statement.class);
    // determine suitable strategy for rearranging elements towards a new code structure:
    RearrangeStrategy rearrangeStrategy = RearrangeStrategy.create(origStmt, rewrite, group);
    Expression toReplace;
    ASTNode directParent = this.fieldReference.getParent();
    if (directParent instanceof FieldAccess) {
        toReplace = (Expression) directParent;
    } else if (directParent instanceof QualifiedName && this.fieldReference.getLocationInParent() == QualifiedName.NAME_PROPERTY) {
        toReplace = (Expression) directParent;
    } else {
        toReplace = this.fieldReference;
    }
    // new local declaration initialized from the field reference
    VariableDeclarationFragment localFrag = ast.newVariableDeclarationFragment();
    VariableDeclarationStatement localDecl = ast.newVariableDeclarationStatement(localFrag);
    // ... type
    localDecl.setType(newType(toReplace.resolveTypeBinding(), ast, imports));
    localDecl.modifiers().add(ast.newModifier(Modifier.ModifierKeyword.FINAL_KEYWORD));
    // ... name
    String localName = proposeLocalName(this.fieldReference, this.compilationUnit, getCompilationUnit().getJavaProject());
    localFrag.setName(ast.newSimpleName(localName));
    // ... initialization
    localFrag.setInitializer((Expression) ASTNode.copySubtree(ast, toReplace));
    rearrangeStrategy.insertLocalDecl(localDecl);
    // if statement:
    IfStatement ifStmt = ast.newIfStatement();
    // condition:
    InfixExpression nullCheck = ast.newInfixExpression();
    nullCheck.setLeftOperand(ast.newSimpleName(localName));
    nullCheck.setRightOperand(ast.newNullLiteral());
    nullCheck.setOperator(InfixExpression.Operator.NOT_EQUALS);
    ifStmt.setExpression(nullCheck);
    // then block: the original statement
    Block thenBlock = ast.newBlock();
    thenBlock.statements().add(rearrangeStrategy.createMoveTargetForOrigStmt());
    ifStmt.setThenStatement(thenBlock);
    // ... but with the field reference replaced by the new local:
    SimpleName dereferencedName = ast.newSimpleName(localName);
    rewrite.replace(toReplace, dereferencedName, group);
    // else block: a Todo comment
    Block elseBlock = ast.newBlock();
    //$NON-NLS-1$
    String elseStatement = "// TODO " + FixMessages.ExtractToNullCheckedLocalProposal_todoHandleNullDescription;
    if (origStmt instanceof ReturnStatement) {
        Type returnType = newType(((ReturnStatement) origStmt).getExpression().resolveTypeBinding(), ast, imports);
        ReturnStatement returnStatement = ast.newReturnStatement();
        returnStatement.setExpression(ASTNodeFactory.newDefaultExpression(ast, returnType, 0));
        elseStatement += '\n' + ASTNodes.asFormattedString(returnStatement, 0, String.valueOf('\n'), getCompilationUnit().getJavaProject().getOptions(true));
    }
    EmptyStatement todoNode = (EmptyStatement) rewrite.createStringPlaceholder(elseStatement, ASTNode.EMPTY_STATEMENT);
    elseBlock.statements().add(todoNode);
    ifStmt.setElseStatement(elseBlock);
    // link all three occurrences of the new local variable:
    addLinkedPosition(rewrite.track(localFrag.getName()), true, /*first*/
    LOCAL_NAME_POSITION_GROUP);
    addLinkedPosition(rewrite.track(nullCheck.getLeftOperand()), false, LOCAL_NAME_POSITION_GROUP);
    addLinkedPosition(rewrite.track(dereferencedName), false, LOCAL_NAME_POSITION_GROUP);
    rearrangeStrategy.insertIfStatement(ifStmt, thenBlock);
    return rewrite;
}

Example 12 with SimpleName

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

the class GenerateForLoopAssistProposal method generateForRewrite.

/**
	 * Helper to generate an index based <code>for</code> loop to iterate over an array.
	 * 
	 * @param ast the current {@link AST} instance to generate the {@link ASTRewrite} for
	 * @return an applicable {@link ASTRewrite} instance
	 */
private ASTRewrite generateForRewrite(AST ast) {
    ASTRewrite rewrite = ASTRewrite.create(ast);
    ForStatement loopStatement = ast.newForStatement();
    //$NON-NLS-1$
    SimpleName loopVariableName = resolveLinkedVariableNameWithProposals(rewrite, "int", null, true);
    loopStatement.initializers().add(getForInitializer(ast, loopVariableName));
    FieldAccess getArrayLengthExpression = ast.newFieldAccess();
    getArrayLengthExpression.setExpression((Expression) rewrite.createCopyTarget(fCurrentExpression));
    //$NON-NLS-1$
    getArrayLengthExpression.setName(ast.newSimpleName("length"));
    loopStatement.setExpression(getLinkedInfixExpression(rewrite, loopVariableName.getIdentifier(), getArrayLengthExpression, InfixExpression.Operator.LESS));
    loopStatement.updaters().add(getLinkedIncrementExpression(rewrite, loopVariableName.getIdentifier()));
    Block forLoopBody = ast.newBlock();
    forLoopBody.statements().add(ast.newExpressionStatement(getForBodyAssignment(rewrite, loopVariableName)));
    forLoopBody.statements().add(createBlankLineStatementWithCursorPosition(rewrite));
    loopStatement.setBody(forLoopBody);
    rewrite.replace(fCurrentNode, loopStatement, null);
    return rewrite;
}

Example 13 with SimpleName

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

the class GenerateForLoopAssistProposal method getIndexBasedForBodyAssignment.

/**
	 * Creates an {@link Assignment} as first expression appearing in an index based
	 * <code>for</code> loop's body. This Assignment declares a local variable and initializes it
	 * using the {@link List}'s current element identified by the loop index.
	 * 
	 * @param rewrite the current {@link ASTRewrite} instance
	 * @param loopVariableName the name of the index variable in String representation
	 * @return a completed {@link Assignment} containing the mentioned declaration and
	 *         initialization
	 */
private Expression getIndexBasedForBodyAssignment(ASTRewrite rewrite, SimpleName loopVariableName) {
    AST ast = rewrite.getAST();
    ITypeBinding loopOverType = extractElementType(ast);
    Assignment assignResolvedVariable = ast.newAssignment();
    // left hand side
    SimpleName resolvedVariableName = resolveLinkedVariableNameWithProposals(rewrite, loopOverType.getName(), loopVariableName.getIdentifier(), false);
    VariableDeclarationFragment resolvedVariableDeclarationFragment = ast.newVariableDeclarationFragment();
    resolvedVariableDeclarationFragment.setName(resolvedVariableName);
    VariableDeclarationExpression resolvedVariableDeclaration = ast.newVariableDeclarationExpression(resolvedVariableDeclarationFragment);
    resolvedVariableDeclaration.setType(getImportRewrite().addImport(loopOverType, ast, new ContextSensitiveImportRewriteContext(fCurrentNode, getImportRewrite())));
    assignResolvedVariable.setLeftHandSide(resolvedVariableDeclaration);
    // right hand side
    MethodInvocation invokeGetExpression = ast.newMethodInvocation();
    //$NON-NLS-1$
    invokeGetExpression.setName(ast.newSimpleName("get"));
    SimpleName indexVariableName = ast.newSimpleName(loopVariableName.getIdentifier());
    addLinkedPosition(rewrite.track(indexVariableName), LinkedPositionGroup.NO_STOP, indexVariableName.getIdentifier());
    invokeGetExpression.arguments().add(indexVariableName);
    invokeGetExpression.setExpression((Expression) rewrite.createCopyTarget(fCurrentExpression));
    assignResolvedVariable.setRightHandSide(invokeGetExpression);
    assignResolvedVariable.setOperator(Assignment.Operator.ASSIGN);
    return assignResolvedVariable;
}

Example 14 with SimpleName

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

the class NewAnnotationMemberProposal method getStub.

private AnnotationTypeMemberDeclaration getStub(ASTRewrite rewrite, AnnotationTypeDeclaration targetTypeDecl) {
    AST ast = targetTypeDecl.getAST();
    AnnotationTypeMemberDeclaration decl = ast.newAnnotationTypeMemberDeclaration();
    SimpleName newNameNode = getNewName(rewrite);
    decl.modifiers().addAll(ASTNodeFactory.newModifiers(ast, evaluateModifiers(targetTypeDecl)));
    ModifierCorrectionSubProcessor.installLinkedVisibilityProposals(getLinkedProposalModel(), rewrite, decl.modifiers(), true);
    decl.setName(newNameNode);
    Type returnType = getNewType(rewrite);
    decl.setType(returnType);
    return decl;
}

Example 15 with SimpleName

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

the class NewAnnotationMemberProposal method getNewName.

private SimpleName getNewName(ASTRewrite rewrite) {
    AST ast = rewrite.getAST();
    String name;
    if (fInvocationNode.getLocationInParent() == MemberValuePair.NAME_PROPERTY) {
        name = ((SimpleName) fInvocationNode).getIdentifier();
        if (ast == fInvocationNode.getAST()) {
            addLinkedPosition(rewrite.track(fInvocationNode), true, KEY_NAME);
        }
    } else {
        //$NON-NLS-1$
        name = "value";
    }
    SimpleName newNameNode = ast.newSimpleName(name);
    addLinkedPosition(rewrite.track(newNameNode), false, KEY_NAME);
    return newNameNode;
}