Examples with NewArrayTree com.sun.source.tree.NewArrayTree used on opensource projects

Example 6 with NewArrayTree

use of com.sun.source.tree.NewArrayTree in project groovy-cps by cloudbees.

the class Translator method translateMethod.

/**
 * @param e
 *      Method in {@code fqcn} to translate.
 */
private void translateMethod(final CompilationUnitTree cut, ExecutableElement e, JDefinedClass $output, String fqcn, String overloadResolved) {
    String methodName = n(e);
    boolean isPublic = e.getModifiers().contains(Modifier.PUBLIC);
    JMethod delegating = $output.method(isPublic ? JMod.PUBLIC | JMod.STATIC : JMod.STATIC, (JType) null, methodName);
    JMethod m = $output.method(JMod.PRIVATE | JMod.STATIC, (JType) null, overloadResolved);
    Map<String, JTypeVar> typeVars = new HashMap<>();
    e.getTypeParameters().forEach(p -> {
        String name = n(p);
        JTypeVar typeVar = delegating.generify(name);
        JTypeVar typeVar2 = m.generify(name);
        p.getBounds().forEach(b -> {
            JClass binding = (JClass) t(b, typeVars);
            typeVar.bound(binding);
            typeVar2.bound(binding);
        });
        typeVars.put(name, typeVar);
    });
    JType type = t(e.getReturnType(), typeVars);
    delegating.type(type);
    m.type(type);
    List<JVar> delegatingParams = new ArrayList<>();
    List<JVar> params = new ArrayList<>();
    e.getParameters().forEach(p -> {
        JType paramType = t(p.asType(), typeVars);
        delegatingParams.add(e.isVarArgs() && p == e.getParameters().get(e.getParameters().size() - 1) ? delegating.varParam(paramType.elementType(), n(p)) : delegating.param(paramType, n(p)));
        params.add(m.param(paramType, n(p)));
    });
    e.getThrownTypes().forEach(ex -> {
        delegating._throws((JClass) t(ex));
        m._throws((JClass) t(ex));
    });
    boolean returnsVoid = e.getReturnType().getKind() == TypeKind.VOID;
    if (isPublic) {
        // preamble
        /*
                If the call to this method happen outside CPS code, execute normally via DefaultGroovyMethods
             */
        delegating.body()._if(JOp.cand(JOp.not($Caller.staticInvoke("isAsynchronous").tap(inv -> {
            inv.arg(delegatingParams.get(0));
            inv.arg(methodName);
            for (int i = 1; i < delegatingParams.size(); i++) inv.arg(delegatingParams.get(i));
        })), JOp.not($Caller.staticInvoke("isAsynchronous").arg($output.dotclass()).arg(methodName).args(params))))._then().tap(blk -> {
            JClass $WhateverGroovyMethods = codeModel.ref(fqcn);
            JInvocation forward = $WhateverGroovyMethods.staticInvoke(methodName).args(delegatingParams);
            if (returnsVoid) {
                blk.add(forward);
                blk._return();
            } else {
                blk._return(forward);
            }
        });
    }
    JInvocation delegateCall = $output.staticInvoke(overloadResolved);
    if (returnsVoid) {
        delegating.body().add(delegateCall);
    } else {
        delegating.body()._return(delegateCall);
    }
    delegatingParams.forEach(p -> delegateCall.arg(p));
    JVar $b = m.body().decl($Builder, "b", JExpr._new($Builder).arg(JExpr.invoke("loc").arg(methodName)).invoke("contextualize").arg(codeModel.ref("com.cloudbees.groovy.cps.sandbox.Trusted").staticRef("INSTANCE")));
    JInvocation f = JExpr._new($CpsFunction);
    // parameter names
    f.arg(codeModel.ref(Arrays.class).staticInvoke("asList").tap(inv -> {
        e.getParameters().forEach(p -> inv.arg(n(p)));
    }));
    // translate the method body into an expression that invokes Builder
    f.arg(trees.getTree(e).getBody().accept(new SimpleTreeVisitor<JExpression, Void>() {

        private JExpression visit(Tree t) {
            if (t == null)
                return JExpr._null();
            return visit(t, null);
        }

        /**
         * Maps a symbol to its source location.
         */
        private JExpression loc(Tree t) {
            long pos = trees.getSourcePositions().getStartPosition(cut, t);
            return JExpr.lit((int) cut.getLineMap().getLineNumber(pos));
        }

        @Override
        public JExpression visitWhileLoop(WhileLoopTree wt, Void __) {
            return $b.invoke("while_").arg(// TODO: label
            JExpr._null()).arg(visit(wt.getCondition())).arg(visit(wt.getStatement()));
        }

        @Override
        public JExpression visitMethodInvocation(MethodInvocationTree mt, Void __) {
            ExpressionTree ms = mt.getMethodSelect();
            JInvocation inv;
            if (ms instanceof MemberSelectTree) {
                MemberSelectTree mst = (MemberSelectTree) ms;
                // of the other known translated classes.
                if (mst.getExpression() instanceof JCIdent && !((JCIdent) mst.getExpression()).sym.toString().equals(fqcn) && otherTranslated.containsKey(((JCIdent) mst.getExpression()).sym.toString())) {
                    inv = $b.invoke("functionCall").arg(loc(mt)).arg($b.invoke("constant").arg(otherTranslated.get(((JCIdent) mst.getExpression()).sym.toString()).dotclass())).arg(n(mst.getIdentifier()));
                } else {
                    inv = $b.invoke("functionCall").arg(loc(mt)).arg(visit(mst.getExpression())).arg(n(mst.getIdentifier()));
                }
            } else if (ms instanceof JCIdent) {
                // invocation without object selection, like  foo(bar,zot)
                JCIdent it = (JCIdent) ms;
                if (!it.sym.owner.toString().equals(fqcn)) {
                    if (otherTranslated.containsKey(it.sym.owner.toString())) {
                        // static import from transformed class
                        inv = $b.invoke("functionCall").arg(loc(mt)).arg($b.invoke("constant").arg(otherTranslated.get(it.sym.owner.toString()).dotclass())).arg(n(it));
                    } else {
                        // static import from non-transformed class
                        inv = $b.invoke("functionCall").arg(loc(mt)).arg($b.invoke("constant").arg(t(it.sym.owner.type).dotclass())).arg(n(it));
                    }
                } else {
                    // invocation on this class
                    String overloadResolved = mangledName((Symbol.MethodSymbol) it.sym);
                    Optional<? extends Element> callSite = elements.getTypeElement(fqcn).getEnclosedElements().stream().filter(e -> e.getKind() == ElementKind.METHOD && mangledName((ExecutableElement) e).equals(overloadResolved)).findAny();
                    if (callSite.isPresent()) {
                        ExecutableElement e = (ExecutableElement) callSite.get();
                        if (e.getModifiers().contains(Modifier.PUBLIC) && !e.isVarArgs() && !e.getParameters().stream().anyMatch(p -> types.isAssignable(p.asType(), closureType))) {
                            // Delegate to the standard version.
                            inv = $b.invoke("staticCall").arg(loc(mt)).arg(t(it.sym.owner.type).dotclass()).arg(n(e));
                        } else if (overloadsResolved.containsKey(overloadResolved)) {
                            // Private, so delegate to our mangled version.
                            // TODO add a String parameter to each internal helper method for the expected methodName to pass to CpsCallableInvocation.<init>
                            // (It could be improved to take a parameter for the name under which we expect methodCall to be invoking it.
                            // Usually just `each`, but might be `$each__java_util_Iterable__groovy_lang_Closure` for the case that one DGM method is delegating to another.
                            // See comment in ContinuationGroup, where we are unable to enforce continuation name mismatches in this case.)
                            inv = $b.invoke("staticCall").arg(loc(mt)).arg($output.dotclass()).arg(overloadResolved);
                        } else {
                            throw new IllegalStateException("Not yet translating a " + e.getModifiers() + " method; translatable.txt might need to include: " + fqcn + "." + e);
                        }
                    } else {
                        throw new IllegalStateException("Could not find self-call site " + overloadResolved + " for " + mt);
                    }
                }
            } else {
                // TODO: figure out what can come here
                throw new UnsupportedOperationException(ms.toString());
            }
            mt.getArguments().forEach(a -> inv.arg(visit(a)));
            return inv;
        }

        @Override
        public JExpression visitVariable(VariableTree vt, Void __) {
            return $b.invoke("declareVariable").arg(loc(vt)).arg(cpsTypeTranslation(erasure(vt))).arg(n(vt)).arg(visit(vt.getInitializer()));
        }

        @Override
        public JExpression visitIdentifier(IdentifierTree it, Void __) {
            JCIdent idt = (JCIdent) it;
            return idt.sym.accept(new DefaultSymbolVisitor<JExpression, Void>() {

                @Override
                public JExpression visitClassSymbol(ClassSymbol cs, Void __) {
                    return $b.invoke("constant").arg(t(cs.asType()).dotclass());
                }

                @Override
                public JExpression visitVarSymbol(VarSymbol s, Void __) {
                    return $b.invoke("localVariable").arg(n(s.name));
                }

                @Override
                public JExpression visitSymbol(Symbol s, Void __) {
                    throw new UnsupportedOperationException(s.toString());
                }
            }, __);
        }

        @Override
        public JExpression visitBlock(BlockTree bt, Void __) {
            JInvocation inv = $b.invoke("block");
            bt.getStatements().forEach(s -> inv.arg(visit(s)));
            return inv;
        }

        @Override
        public JExpression visitReturn(ReturnTree rt, Void __) {
            return $b.invoke("return_").arg(visit(rt.getExpression()));
        }

        /**
         * When used outside {@link MethodInvocationTree}, this is property access.
         */
        @Override
        public JExpression visitMemberSelect(MemberSelectTree mt, Void __) {
            return $b.invoke("property").arg(loc(mt)).arg(visit(mt.getExpression())).arg(n(mt.getIdentifier()));
        }

        @Override
        public JExpression visitTypeCast(TypeCastTree tt, Void __) {
            return $b.invoke("cast").arg(loc(tt)).arg(visit(tt.getExpression())).arg(erasure(tt.getType()).dotclass()).arg(JExpr.lit(false));
        }

        @Override
        public JExpression visitIf(IfTree it, Void __) {
            JInvocation inv = $b.invoke("if_").arg(visit(it.getCondition())).arg(visit(it.getThenStatement()));
            if (it.getElseStatement() != null)
                inv.arg(visit(it.getElseStatement()));
            return inv;
        }

        @Override
        public JExpression visitNewClass(NewClassTree nt, Void __) {
            // TODO: outer class
            if (nt.getEnclosingExpression() != null)
                throw new UnsupportedOperationException();
            return $b.invoke("new_").tap(inv -> {
                inv.arg(loc(nt));
                inv.arg(cpsTypeTranslation(t(((JCTree) nt).type)));
                nt.getArguments().forEach(et -> inv.arg(visit(et)));
            });
        }

        @Override
        public JExpression visitExpressionStatement(ExpressionStatementTree et, Void __) {
            return visit(et.getExpression());
        }

        @Override
        public JExpression visitLiteral(LiteralTree lt, Void __) {
            return $b.invoke("constant").arg(JExpr.literal(lt.getValue()));
        }

        @Override
        public JExpression visitParenthesized(ParenthesizedTree pt, Void __) {
            return visit(pt.getExpression());
        }

        @Override
        public JExpression visitBinary(BinaryTree bt, Void __) {
            return $b.invoke(opName(bt.getKind())).arg(loc(bt)).arg(visit(bt.getLeftOperand())).arg(visit(bt.getRightOperand()));
        }

        @Override
        public JExpression visitUnary(UnaryTree ut, Void __) {
            return $b.invoke(opName(ut.getKind())).arg(loc(ut)).arg(visit(ut.getExpression()));
        }

        @Override
        public JExpression visitCompoundAssignment(CompoundAssignmentTree ct, Void __) {
            return $b.invoke(opName(ct.getKind())).arg(loc(ct)).arg(visit(ct.getVariable())).arg(visit(ct.getExpression()));
        }

        private String opName(Kind kind) {
            switch(kind) {
                case EQUAL_TO:
                    return "compareEqual";
                case NOT_EQUAL_TO:
                    return "compareNotEqual";
                case LESS_THAN_EQUAL:
                    return "lessThanEqual";
                case LESS_THAN:
                    return "lessThan";
                case GREATER_THAN_EQUAL:
                    return "greaterThanEqual";
                case GREATER_THAN:
                    return "greaterThan";
                case PREFIX_INCREMENT:
                    return "prefixInc";
                case POSTFIX_INCREMENT:
                    return "postfixInc";
                case POSTFIX_DECREMENT:
                    return "postfixDec";
                case LOGICAL_COMPLEMENT:
                    return "not";
                case CONDITIONAL_OR:
                    return "logicalOr";
                case CONDITIONAL_AND:
                    return "logicalAnd";
                case PLUS:
                    return "plus";
                case PLUS_ASSIGNMENT:
                    return "plusEqual";
                case MINUS:
                    return "minus";
                case MINUS_ASSIGNMENT:
                    return "minusEqual";
            }
            throw new UnsupportedOperationException(kind.toString());
        }

        @Override
        public JExpression visitAssignment(AssignmentTree at, Void __) {
            return $b.invoke("assign").arg(loc(at)).arg(visit(at.getVariable())).arg(visit(at.getExpression()));
        }

        /**
         * This is needed to handle cases like {@code Object[].class}.
         */
        @Override
        public JExpression visitArrayType(ArrayTypeTree at, Void __) {
            if (at.getType() instanceof IdentifierTree) {
                return visitIdentifier((IdentifierTree) at.getType(), __);
            } else {
                return defaultAction(at, __);
            }
        }

        @Override
        public JExpression visitNewArray(NewArrayTree nt, Void __) {
            if (nt.getInitializers() != null) {
                return $b.invoke("newArrayFromInitializers").tap(inv -> {
                    nt.getInitializers().forEach(d -> inv.arg(visit(d)));
                });
            } else {
                return $b.invoke("newArray").tap(inv -> {
                    inv.arg(loc(nt));
                    inv.arg(t(nt.getType()).dotclass());
                    nt.getDimensions().forEach(d -> inv.arg(visit(d)));
                });
            }
        }

        @Override
        public JExpression visitForLoop(ForLoopTree ft, Void __) {
            return $b.invoke("forLoop").arg(JExpr._null()).arg($b.invoke("sequence").tap(inv -> ft.getInitializer().forEach(i -> inv.arg(visit(i))))).arg(visit(ft.getCondition())).arg($b.invoke("sequence").tap(inv -> ft.getUpdate().forEach(i -> inv.arg(visit(i))))).arg(visit(ft.getStatement()));
        }

        @Override
        public JExpression visitEnhancedForLoop(EnhancedForLoopTree et, Void __) {
            return $b.invoke("forInLoop").arg(loc(et)).arg(JExpr._null()).arg(erasure(et.getVariable()).dotclass()).arg(n(et.getVariable())).arg(visit(et.getExpression())).arg(visit(et.getStatement()));
        }

        @Override
        public JExpression visitArrayAccess(ArrayAccessTree at, Void __) {
            return $b.invoke("array").arg(loc(at)).arg(visit(at.getExpression())).arg(visit(at.getIndex()));
        }

        @Override
        public JExpression visitBreak(BreakTree node, Void __) {
            if (node.getLabel() != null)
                throw new UnsupportedOperationException();
            return $b.invoke("break_").arg(JExpr._null());
        }

        @Override
        public JExpression visitContinue(ContinueTree node, Void aVoid) {
            if (node.getLabel() != null)
                throw new UnsupportedOperationException();
            return $b.invoke("continue_").arg(JExpr._null());
        }

        @Override
        public JExpression visitInstanceOf(InstanceOfTree it, Void __) {
            return $b.invoke("instanceOf").arg(loc(it)).arg(visit(it.getExpression())).arg($b.invoke("constant").arg(t(it.getType()).dotclass()));
        }

        @Override
        public JExpression visitThrow(ThrowTree tt, Void __) {
            return $b.invoke("throw_").arg(loc(tt)).arg(visit(tt.getExpression()));
        }

        @Override
        public JExpression visitDoWhileLoop(DoWhileLoopTree dt, Void __) {
            return $b.invoke("doWhile").arg(JExpr._null()).arg(visit(dt.getStatement())).arg(visit(dt.getCondition()));
        }

        @Override
        public JExpression visitConditionalExpression(ConditionalExpressionTree ct, Void __) {
            return $b.invoke("ternaryOp").arg(visit(ct.getCondition())).arg(visit(ct.getTrueExpression())).arg(visit(ct.getFalseExpression()));
        }

        @Override
        public JExpression visitTry(TryTree tt, Void __) {
            return $b.invoke("tryCatch").arg(visit(tt.getBlock())).arg(visit(tt.getFinallyBlock())).tap(inv -> tt.getCatches().forEach(ct -> JExpr._new($CatchExpression).arg(t(ct.getParameter()).dotclass()).arg(n(ct.getParameter())).arg(visit(ct.getBlock()))));
        }

        @Override
        protected JExpression defaultAction(Tree node, Void aVoid) {
            throw new UnsupportedOperationException(node.toString());
        }
    }, null));
    JVar $f = m.body().decl($CpsFunction, "f", f);
    m.body()._throw(JExpr._new($CpsCallableInvocation).arg(JExpr.lit(methodName)).arg($f).arg(JExpr._null()).args(params));
}

Example 7 with NewArrayTree

use of com.sun.source.tree.NewArrayTree in project checker-framework by typetools.

the class CollectionToArrayHeuristics method isHandledArrayCreation.

/**
 * Returns true if {@code argument} is one of the array creation trees that the heuristic handles.
 *
 * @param argument the tree passed to {@link Collection#toArray(Object[]) Collection.toArray(T[])}
 * @param receiver the expression for the receiver collection
 * @return true if the argument is handled and assume to return nonnull elements
 */
private boolean isHandledArrayCreation(Tree argument, String receiver) {
    if (argument.getKind() != Tree.Kind.NEW_ARRAY) {
        return false;
    }
    NewArrayTree newArr = (NewArrayTree) argument;
    // empty array initializer
    if (newArr.getInitializers() != null) {
        return newArr.getInitializers().isEmpty();
    }
    assert !newArr.getDimensions().isEmpty();
    Tree dimension = newArr.getDimensions().get(newArr.getDimensions().size() - 1);
    // 0-length array creation
    if (dimension.toString().equals("0")) {
        return true;
    }
    // size()-length array creation
    if (TreeUtils.isMethodInvocation(dimension, size, processingEnv)) {
        MethodInvocationTree invok = (MethodInvocationTree) dimension;
        String invokReceiver = receiverName(invok.getMethodSelect());
        return invokReceiver.equals(receiver);
    }
    return false;
}

Example 8 with NewArrayTree

use of com.sun.source.tree.NewArrayTree in project checker-framework by typetools.

the class BaseTypeVisitor method visitAnnotation.

/**
 * Ensure that the annotation arguments comply to their declarations. This needs some special
 * casing, as annotation arguments form special trees.
 */
@Override
public Void visitAnnotation(AnnotationTree node, Void p) {
    List<? extends ExpressionTree> args = node.getArguments();
    if (args.isEmpty()) {
        // Nothing to do if there are no annotation arguments.
        return null;
    }
    TypeElement anno = (TypeElement) TreeInfo.symbol((JCTree) node.getAnnotationType());
    Name annoName = anno.getQualifiedName();
    if (annoName.contentEquals(DefaultQualifier.class.getName()) || annoName.contentEquals(SuppressWarnings.class.getName())) {
        // Skip these two annotations, as we don't care about the arguments to them.
        return null;
    }
    List<ExecutableElement> methods = ElementFilter.methodsIn(anno.getEnclosedElements());
    // Mapping from argument simple name to its annotated type.
    Map<String, AnnotatedTypeMirror> annoTypes = new HashMap<>(methods.size());
    for (ExecutableElement meth : methods) {
        AnnotatedExecutableType exeatm = atypeFactory.getAnnotatedType(meth);
        AnnotatedTypeMirror retty = exeatm.getReturnType();
        annoTypes.put(meth.getSimpleName().toString(), retty);
    }
    for (ExpressionTree arg : args) {
        if (!(arg instanceof AssignmentTree)) {
            // TODO: when can this happen?
            continue;
        }
        AssignmentTree at = (AssignmentTree) arg;
        // we don't have a type for annotations.
        if (at.getExpression().getKind() == Tree.Kind.ANNOTATION) {
            visitAnnotation((AnnotationTree) at.getExpression(), p);
            continue;
        }
        if (at.getExpression().getKind() == Tree.Kind.NEW_ARRAY) {
            NewArrayTree nat = (NewArrayTree) at.getExpression();
            boolean isAnno = false;
            for (ExpressionTree init : nat.getInitializers()) {
                if (init.getKind() == Tree.Kind.ANNOTATION) {
                    visitAnnotation((AnnotationTree) init, p);
                    isAnno = true;
                }
            }
            if (isAnno) {
                continue;
            }
        }
        AnnotatedTypeMirror expected = annoTypes.get(at.getVariable().toString());
        AnnotatedTypeMirror actual = atypeFactory.getAnnotatedType(at.getExpression());
        if (expected.getKind() != TypeKind.ARRAY) {
            // Expected is not an array -> direct comparison.
            commonAssignmentCheck(expected, actual, at.getExpression(), "annotation");
        } else if (actual.getKind() == TypeKind.ARRAY) {
            // Both actual and expected are arrays.
            commonAssignmentCheck(expected, actual, at.getExpression(), "annotation");
        } else {
            // The declaration is an array type, but just a single element is given.
            commonAssignmentCheck(((AnnotatedArrayType) expected).getComponentType(), actual, at.getExpression(), "annotation");
        }
    }
    return null;
}

Example 9 with NewArrayTree

use of com.sun.source.tree.NewArrayTree in project checker-framework by typetools.

the class BaseTypeVisitor method commonAssignmentCheck.

/**
 * Checks the validity of an assignment (or pseudo-assignment) from a value to a variable and
 * emits an error message (through the compiler's messaging interface) if it is not valid.
 *
 * @param varType the annotated type for the lvalue (usually a variable)
 * @param valueExp the AST node for the rvalue (the new value)
 * @param errorKey the error message key to use if the check fails
 * @param extraArgs arguments to the error message key, before "found" and "expected" types
 */
protected void commonAssignmentCheck(AnnotatedTypeMirror varType, ExpressionTree valueExp, @CompilerMessageKey String errorKey, Object... extraArgs) {
    if (shouldSkipUses(valueExp)) {
        return;
    }
    if (valueExp.getKind() == Tree.Kind.MEMBER_REFERENCE || valueExp.getKind() == Tree.Kind.LAMBDA_EXPRESSION) {
        // and do not need to be checked again as arguments.
        return;
    }
    if (varType.getKind() == TypeKind.ARRAY && valueExp instanceof NewArrayTree && ((NewArrayTree) valueExp).getType() == null) {
        AnnotatedTypeMirror compType = ((AnnotatedArrayType) varType).getComponentType();
        NewArrayTree arrayTree = (NewArrayTree) valueExp;
        assert arrayTree.getInitializers() != null : "array initializers are not expected to be null in: " + valueExp;
        checkArrayInitialization(compType, arrayTree.getInitializers());
    }
    if (!validateTypeOf(valueExp)) {
        return;
    }
    AnnotatedTypeMirror valueType = atypeFactory.getAnnotatedType(valueExp);
    assert valueType != null : "null type for expression: " + valueExp;
    commonAssignmentCheck(varType, valueType, valueExp, errorKey, extraArgs);
}

Example 10 with NewArrayTree

use of com.sun.source.tree.NewArrayTree in project checker-framework by typetools.

the class FlowExpressions method internalReprOf.

/**
 * We ignore operations such as widening and narrowing when computing the internal
 * representation.
 *
 * @return the internal representation (as {@link Receiver}) of any {@link ExpressionTree}.
 *     Might contain {@link Unknown}.
 */
public static Receiver internalReprOf(AnnotationProvider provider, ExpressionTree receiverTree, boolean allowNonDeterministic) {
    Receiver receiver;
    switch(receiverTree.getKind()) {
        case ARRAY_ACCESS:
            ArrayAccessTree a = (ArrayAccessTree) receiverTree;
            Receiver arrayAccessExpression = internalReprOf(provider, a.getExpression());
            Receiver index = internalReprOf(provider, a.getIndex());
            receiver = new ArrayAccess(TreeUtils.typeOf(a), arrayAccessExpression, index);
            break;
        case BOOLEAN_LITERAL:
        case CHAR_LITERAL:
        case DOUBLE_LITERAL:
        case FLOAT_LITERAL:
        case INT_LITERAL:
        case LONG_LITERAL:
        case NULL_LITERAL:
        case STRING_LITERAL:
            LiteralTree vn = (LiteralTree) receiverTree;
            receiver = new ValueLiteral(TreeUtils.typeOf(receiverTree), vn.getValue());
            break;
        case NEW_ARRAY:
            NewArrayTree newArrayTree = (NewArrayTree) receiverTree;
            List<Receiver> dimensions = new ArrayList<>();
            if (newArrayTree.getDimensions() != null) {
                for (ExpressionTree dimension : newArrayTree.getDimensions()) {
                    dimensions.add(internalReprOf(provider, dimension, allowNonDeterministic));
                }
            }
            List<Receiver> initializers = new ArrayList<>();
            if (newArrayTree.getInitializers() != null) {
                for (ExpressionTree initializer : newArrayTree.getInitializers()) {
                    initializers.add(internalReprOf(provider, initializer, allowNonDeterministic));
                }
            }
            receiver = new ArrayCreation(TreeUtils.typeOf(receiverTree), dimensions, initializers);
            break;
        case METHOD_INVOCATION:
            MethodInvocationTree mn = (MethodInvocationTree) receiverTree;
            ExecutableElement invokedMethod = TreeUtils.elementFromUse(mn);
            if (PurityUtils.isDeterministic(provider, invokedMethod) || allowNonDeterministic) {
                List<Receiver> parameters = new ArrayList<>();
                for (ExpressionTree p : mn.getArguments()) {
                    parameters.add(internalReprOf(provider, p));
                }
                Receiver methodReceiver;
                if (ElementUtils.isStatic(invokedMethod)) {
                    methodReceiver = new ClassName(TreeUtils.typeOf(mn.getMethodSelect()));
                } else {
                    ExpressionTree methodReceiverTree = TreeUtils.getReceiverTree(mn);
                    if (methodReceiverTree != null) {
                        methodReceiver = internalReprOf(provider, methodReceiverTree);
                    } else {
                        methodReceiver = internalReprOfImplicitReceiver(invokedMethod);
                    }
                }
                TypeMirror type = TreeUtils.typeOf(mn);
                receiver = new MethodCall(type, invokedMethod, methodReceiver, parameters);
            } else {
                receiver = null;
            }
            break;
        case MEMBER_SELECT:
            receiver = internalReprOfMemberSelect(provider, (MemberSelectTree) receiverTree);
            break;
        case IDENTIFIER:
            IdentifierTree identifierTree = (IdentifierTree) receiverTree;
            TypeMirror typeOfId = TreeUtils.typeOf(identifierTree);
            if (identifierTree.getName().contentEquals("this") || identifierTree.getName().contentEquals("super")) {
                receiver = new ThisReference(typeOfId);
                break;
            }
            Element ele = TreeUtils.elementFromUse(identifierTree);
            switch(ele.getKind()) {
                case LOCAL_VARIABLE:
                case RESOURCE_VARIABLE:
                case EXCEPTION_PARAMETER:
                case PARAMETER:
                    receiver = new LocalVariable(ele);
                    break;
                case FIELD:
                    // Implicit access expression, such as "this" or a class name
                    Receiver fieldAccessExpression;
                    TypeMirror enclosingType = ElementUtils.enclosingClass(ele).asType();
                    if (ElementUtils.isStatic(ele)) {
                        fieldAccessExpression = new ClassName(enclosingType);
                    } else {
                        fieldAccessExpression = new ThisReference(enclosingType);
                    }
                    receiver = new FieldAccess(fieldAccessExpression, typeOfId, (VariableElement) ele);
                    break;
                case CLASS:
                case ENUM:
                case ANNOTATION_TYPE:
                case INTERFACE:
                    receiver = new ClassName(ele.asType());
                    break;
                default:
                    receiver = null;
            }
            break;
        default:
            receiver = null;
    }
    if (receiver == null) {
        receiver = new Unknown(TreeUtils.typeOf(receiverTree));
    }
    return receiver;
}