Examples with TypeDescriptor com.android.tools.klint.client.api.JavaParser.TypeDescriptor used on opensource projects

Example 1 with TypeDescriptor

use of com.android.tools.klint.client.api.JavaParser.TypeDescriptor in project kotlin by JetBrains.

the class TypeEvaluator method evaluate.

/**
     * Returns the inferred type of the given node
     * @deprecated Use {@link #evaluate(PsiElement)} instead
     */
@Deprecated
@Nullable
public TypeDescriptor evaluate(@NonNull Node node) {
    ResolvedNode resolved = null;
    if (mContext != null) {
        resolved = mContext.resolve(node);
    }
    if (resolved instanceof ResolvedMethod) {
        TypeDescriptor type;
        ResolvedMethod method = (ResolvedMethod) resolved;
        if (method.isConstructor()) {
            ResolvedClass containingClass = method.getContainingClass();
            type = containingClass.getType();
        } else {
            type = method.getReturnType();
        }
        return type;
    }
    if (resolved instanceof ResolvedField) {
        ResolvedField field = (ResolvedField) resolved;
        Node astNode = field.findAstNode();
        if (astNode instanceof VariableDeclaration) {
            VariableDeclaration declaration = (VariableDeclaration) astNode;
            VariableDefinition definition = declaration.astDefinition();
            if (definition != null) {
                VariableDefinitionEntry first = definition.astVariables().first();
                if (first != null) {
                    Expression initializer = first.astInitializer();
                    if (initializer != null) {
                        TypeDescriptor type = evaluate(initializer);
                        if (type != null) {
                            return type;
                        }
                    }
                }
            }
        }
        return field.getType();
    }
    if (node instanceof VariableReference) {
        Statement statement = getParentOfType(node, Statement.class, false);
        if (statement != null) {
            ListIterator<Node> iterator = statement.getParent().getChildren().listIterator();
            while (iterator.hasNext()) {
                if (iterator.next() == statement) {
                    if (iterator.hasPrevious()) {
                        // should always be true
                        iterator.previous();
                    }
                    break;
                }
            }
            String targetName = ((VariableReference) node).astIdentifier().astValue();
            while (iterator.hasPrevious()) {
                Node previous = iterator.previous();
                if (previous instanceof VariableDeclaration) {
                    VariableDeclaration declaration = (VariableDeclaration) previous;
                    VariableDefinition definition = declaration.astDefinition();
                    for (VariableDefinitionEntry entry : definition.astVariables()) {
                        if (entry.astInitializer() != null && entry.astName().astValue().equals(targetName)) {
                            return evaluate(entry.astInitializer());
                        }
                    }
                } else if (previous instanceof ExpressionStatement) {
                    ExpressionStatement expressionStatement = (ExpressionStatement) previous;
                    Expression expression = expressionStatement.astExpression();
                    if (expression instanceof BinaryExpression && ((BinaryExpression) expression).astOperator() == BinaryOperator.ASSIGN) {
                        BinaryExpression binaryExpression = (BinaryExpression) expression;
                        if (targetName.equals(binaryExpression.astLeft().toString())) {
                            return evaluate(binaryExpression.astRight());
                        }
                    }
                }
            }
        }
    } else if (node instanceof Cast) {
        Cast cast = (Cast) node;
        if (mContext != null) {
            ResolvedNode typeReference = mContext.resolve(cast.astTypeReference());
            if (typeReference instanceof ResolvedClass) {
                return ((ResolvedClass) typeReference).getType();
            }
        }
        TypeDescriptor viewType = evaluate(cast.astOperand());
        if (viewType != null) {
            return viewType;
        }
    } else if (node instanceof Literal) {
        if (node instanceof NullLiteral) {
            return null;
        } else if (node instanceof BooleanLiteral) {
            return new DefaultTypeDescriptor(TYPE_BOOLEAN);
        } else if (node instanceof StringLiteral) {
            return new DefaultTypeDescriptor(TYPE_STRING);
        } else if (node instanceof CharLiteral) {
            return new DefaultTypeDescriptor(TYPE_CHAR);
        } else if (node instanceof IntegralLiteral) {
            IntegralLiteral literal = (IntegralLiteral) node;
            // Don't combine to ?: since that will promote astIntValue to a long
            if (literal.astMarkedAsLong()) {
                return new DefaultTypeDescriptor(TYPE_LONG);
            } else {
                return new DefaultTypeDescriptor(TYPE_INT);
            }
        } else if (node instanceof FloatingPointLiteral) {
            FloatingPointLiteral literal = (FloatingPointLiteral) node;
            // Don't combine to ?: since that will promote astFloatValue to a double
            if (literal.astMarkedAsFloat()) {
                return new DefaultTypeDescriptor(TYPE_FLOAT);
            } else {
                return new DefaultTypeDescriptor(TYPE_DOUBLE);
            }
        }
    } else if (node instanceof UnaryExpression) {
        return evaluate(((UnaryExpression) node).astOperand());
    } else if (node instanceof InlineIfExpression) {
        InlineIfExpression expression = (InlineIfExpression) node;
        if (expression.astIfTrue() != null) {
            return evaluate(expression.astIfTrue());
        } else if (expression.astIfFalse() != null) {
            return evaluate(expression.astIfFalse());
        }
    } else if (node instanceof BinaryExpression) {
        BinaryExpression expression = (BinaryExpression) node;
        BinaryOperator operator = expression.astOperator();
        switch(operator) {
            case LOGICAL_OR:
            case LOGICAL_AND:
            case EQUALS:
            case NOT_EQUALS:
            case GREATER:
            case GREATER_OR_EQUAL:
            case LESS:
            case LESS_OR_EQUAL:
                return new DefaultTypeDescriptor(TYPE_BOOLEAN);
        }
        TypeDescriptor type = evaluate(expression.astLeft());
        if (type != null) {
            return type;
        }
        return evaluate(expression.astRight());
    }
    if (resolved instanceof ResolvedVariable) {
        ResolvedVariable variable = (ResolvedVariable) resolved;
        return variable.getType();
    }
    return null;
}