Examples with NullLiteralExpr - japa.parser.ast.expr.NullLiteralExpr

Example 1 with NullLiteralExpr

use of japa.parser.ast.expr.NullLiteralExpr in project enumerable by hraberg.

the class LambdaExpressionTreesTest method turnLambdasIntoExpressions.

@Test
public void turnLambdasIntoExpressions() throws Exception {
    assertEquals(new NullLiteralExpr(), toExpression(λ(null)));
    assertEquals(parseExpression("n * 2"), toExpression(λ(n, n * 2)));
    assertEquals(parseExpression("n * m"), toExpression(λ(n, m, n * m)));
}

Also used : NullLiteralExpr(japa.parser.ast.expr.NullLiteralExpr) Test(org.junit.Test)

Example 2 with NullLiteralExpr

use of japa.parser.ast.expr.NullLiteralExpr in project Japid by branaway.

the class JavaSyntaxTool method parseCode.

public static List<CodeNode> parseCode(String code) {
    try {
        final List<CodeNode> nodes = new LinkedList();
        CompilationUnit cu = parse(code);
        VoidVisitorAdapter visitor = new VoidVisitorAdapter() {

            int nested = 0;

            @Override
            public void visit(AnnotationDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(AnnotationMemberDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ArrayAccessExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ArrayCreationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ArrayInitializerExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(AssertStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(AssignExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BinaryExpr n, Object arg) {
                if (n.getOperator() == Operator.binOr) {
                    nodes.add(new CodeNode(nested++, new BinaryOrExpr(n)));
                } else {
                    nodes.add(new CodeNode(nested++, n));
                }
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BlockComment n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BlockStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BooleanLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BreakStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(CastExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(CatchClause n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(CharLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ClassExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ClassOrInterfaceDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ClassOrInterfaceType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(CompilationUnit n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ConditionalExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ConstructorDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ContinueStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(DoStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(DoubleLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EmptyMemberDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EmptyStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EmptyTypeDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EnclosedExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EnumConstantDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EnumDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ExplicitConstructorInvocationStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ExpressionStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(FieldAccessExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(FieldDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ForeachStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ForStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(IfStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ImportDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(InitializerDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(InstanceOfExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(IntegerLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(IntegerLiteralMinValueExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(JavadocComment n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(LabeledStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(LineComment n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(LongLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(LongLiteralMinValueExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(MarkerAnnotationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(MemberValuePair n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(MethodCallExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(MethodDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(NameExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(NormalAnnotationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(NullLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ObjectCreationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(PackageDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(Parameter n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(PrimitiveType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(QualifiedNameExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ReferenceType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ReturnStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SingleMemberAnnotationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(StringLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SuperExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SwitchEntryStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SwitchStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SynchronizedStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ThisExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ThrowStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(TryStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(TypeDeclarationStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(TypeParameter n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(UnaryExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(VariableDeclarationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(VariableDeclarator n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(VariableDeclaratorId n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(VoidType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(WhileStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(WildcardType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }
        };
        cu.accept(visitor, null);
        return nodes;
    } catch (ParseException e) {
        throw new RuntimeException("invalid Java code: " + code + ". " + e);
    }
}

Also used : IntegerLiteralExpr(japa.parser.ast.expr.IntegerLiteralExpr) ObjectCreationExpr(japa.parser.ast.expr.ObjectCreationExpr) TypeParameter(japa.parser.ast.TypeParameter) ExplicitConstructorInvocationStmt(japa.parser.ast.stmt.ExplicitConstructorInvocationStmt) LineComment(japa.parser.ast.LineComment) ExpressionStmt(japa.parser.ast.stmt.ExpressionStmt) ReferenceType(japa.parser.ast.type.ReferenceType) VariableDeclarator(japa.parser.ast.body.VariableDeclarator) EnumConstantDeclaration(japa.parser.ast.body.EnumConstantDeclaration) QualifiedNameExpr(japa.parser.ast.expr.QualifiedNameExpr) BreakStmt(japa.parser.ast.stmt.BreakStmt) BooleanLiteralExpr(japa.parser.ast.expr.BooleanLiteralExpr) CastExpr(japa.parser.ast.expr.CastExpr) LongLiteralExpr(japa.parser.ast.expr.LongLiteralExpr) PrimitiveType(japa.parser.ast.type.PrimitiveType) NormalAnnotationExpr(japa.parser.ast.expr.NormalAnnotationExpr) PackageDeclaration(japa.parser.ast.PackageDeclaration) CompilationUnit(japa.parser.ast.CompilationUnit) BlockComment(japa.parser.ast.BlockComment) SwitchStmt(japa.parser.ast.stmt.SwitchStmt) BlockStmt(japa.parser.ast.stmt.BlockStmt) CharLiteralExpr(japa.parser.ast.expr.CharLiteralExpr) CatchClause(japa.parser.ast.stmt.CatchClause) ForeachStmt(japa.parser.ast.stmt.ForeachStmt) InstanceOfExpr(japa.parser.ast.expr.InstanceOfExpr) UnaryExpr(japa.parser.ast.expr.UnaryExpr) LinkedList(java.util.LinkedList) WildcardType(japa.parser.ast.type.WildcardType) EmptyMemberDeclaration(japa.parser.ast.body.EmptyMemberDeclaration) AnnotationDeclaration(japa.parser.ast.body.AnnotationDeclaration) ClassExpr(japa.parser.ast.expr.ClassExpr) AssertStmt(japa.parser.ast.stmt.AssertStmt) ReturnStmt(japa.parser.ast.stmt.ReturnStmt) ThrowStmt(japa.parser.ast.stmt.ThrowStmt) VoidVisitorAdapter(japa.parser.ast.visitor.VoidVisitorAdapter) LabeledStmt(japa.parser.ast.stmt.LabeledStmt) VoidType(japa.parser.ast.type.VoidType) ClassOrInterfaceDeclaration(japa.parser.ast.body.ClassOrInterfaceDeclaration) QualifiedNameExpr(japa.parser.ast.expr.QualifiedNameExpr) NameExpr(japa.parser.ast.expr.NameExpr) StringLiteralExpr(japa.parser.ast.expr.StringLiteralExpr) ClassOrInterfaceType(japa.parser.ast.type.ClassOrInterfaceType) SynchronizedStmt(japa.parser.ast.stmt.SynchronizedStmt) FieldDeclaration(japa.parser.ast.body.FieldDeclaration) AssignExpr(japa.parser.ast.expr.AssignExpr) SingleMemberAnnotationExpr(japa.parser.ast.expr.SingleMemberAnnotationExpr) JavadocComment(japa.parser.ast.body.JavadocComment) VariableDeclaratorId(japa.parser.ast.body.VariableDeclaratorId) MemberValuePair(japa.parser.ast.expr.MemberValuePair) ArrayInitializerExpr(japa.parser.ast.expr.ArrayInitializerExpr) WhileStmt(japa.parser.ast.stmt.WhileStmt) ConstructorDeclaration(japa.parser.ast.body.ConstructorDeclaration) EmptyTypeDeclaration(japa.parser.ast.body.EmptyTypeDeclaration) TypeDeclarationStmt(japa.parser.ast.stmt.TypeDeclarationStmt) FieldAccessExpr(japa.parser.ast.expr.FieldAccessExpr) EmptyStmt(japa.parser.ast.stmt.EmptyStmt) ArrayCreationExpr(japa.parser.ast.expr.ArrayCreationExpr) ForStmt(japa.parser.ast.stmt.ForStmt) DoStmt(japa.parser.ast.stmt.DoStmt) ThisExpr(japa.parser.ast.expr.ThisExpr) VariableDeclarationExpr(japa.parser.ast.expr.VariableDeclarationExpr) SuperExpr(japa.parser.ast.expr.SuperExpr) IntegerLiteralMinValueExpr(japa.parser.ast.expr.IntegerLiteralMinValueExpr) ArrayAccessExpr(japa.parser.ast.expr.ArrayAccessExpr) MethodDeclaration(japa.parser.ast.body.MethodDeclaration) BinaryExpr(japa.parser.ast.expr.BinaryExpr) TryStmt(japa.parser.ast.stmt.TryStmt) MarkerAnnotationExpr(japa.parser.ast.expr.MarkerAnnotationExpr) ConditionalExpr(japa.parser.ast.expr.ConditionalExpr) EnumDeclaration(japa.parser.ast.body.EnumDeclaration) ContinueStmt(japa.parser.ast.stmt.ContinueStmt) NullLiteralExpr(japa.parser.ast.expr.NullLiteralExpr) IfStmt(japa.parser.ast.stmt.IfStmt) InitializerDeclaration(japa.parser.ast.body.InitializerDeclaration) LongLiteralMinValueExpr(japa.parser.ast.expr.LongLiteralMinValueExpr) DoubleLiteralExpr(japa.parser.ast.expr.DoubleLiteralExpr) ImportDeclaration(japa.parser.ast.ImportDeclaration) SwitchEntryStmt(japa.parser.ast.stmt.SwitchEntryStmt) Parameter(japa.parser.ast.body.Parameter) TypeParameter(japa.parser.ast.TypeParameter) ParseException(japa.parser.ParseException) EnclosedExpr(japa.parser.ast.expr.EnclosedExpr) AnnotationMemberDeclaration(japa.parser.ast.body.AnnotationMemberDeclaration) MethodCallExpr(japa.parser.ast.expr.MethodCallExpr)

Example 3 with NullLiteralExpr

use of japa.parser.ast.expr.NullLiteralExpr in project japid42 by branaway.

the class JavaSyntaxTool method parseCode.

public static List<CodeNode> parseCode(String code) {
    try {
        final List<CodeNode> nodes = new LinkedList();
        CompilationUnit cu = parse(code);
        VoidVisitorAdapter visitor = new VoidVisitorAdapter() {

            int nested = 0;

            @Override
            public void visit(AnnotationDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(AnnotationMemberDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ArrayAccessExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ArrayCreationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ArrayInitializerExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(AssertStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(AssignExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BinaryExpr n, Object arg) {
                if (n.getOperator() == Operator.binOr) {
                    nodes.add(new CodeNode(nested++, new BinaryOrExpr(n)));
                } else {
                    nodes.add(new CodeNode(nested++, n));
                }
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BlockComment n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BlockStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BooleanLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(BreakStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(CastExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(CatchClause n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(CharLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ClassExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ClassOrInterfaceDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ClassOrInterfaceType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(CompilationUnit n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ConditionalExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ConstructorDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ContinueStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(DoStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(DoubleLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EmptyMemberDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EmptyStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EmptyTypeDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EnclosedExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EnumConstantDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(EnumDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ExplicitConstructorInvocationStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ExpressionStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(FieldAccessExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(FieldDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ForeachStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ForStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(IfStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ImportDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(InitializerDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(InstanceOfExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(IntegerLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(IntegerLiteralMinValueExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(JavadocComment n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(LabeledStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(LineComment n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(LongLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(LongLiteralMinValueExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(MarkerAnnotationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(MemberValuePair n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(MethodCallExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(MethodDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(NameExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(NormalAnnotationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(NullLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ObjectCreationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(PackageDeclaration n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(Parameter n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(PrimitiveType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(QualifiedNameExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ReferenceType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ReturnStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SingleMemberAnnotationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(StringLiteralExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SuperExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SwitchEntryStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SwitchStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(SynchronizedStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ThisExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(ThrowStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(TryStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(TypeDeclarationStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(TypeParameter n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(UnaryExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(VariableDeclarationExpr n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(VariableDeclarator n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(VariableDeclaratorId n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(VoidType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(WhileStmt n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }

            @Override
            public void visit(WildcardType n, Object arg) {
                nodes.add(new CodeNode(nested++, n));
                super.visit(n, arg);
                nested--;
            }
        };
        cu.accept(visitor, null);
        return nodes;
    } catch (ParseException e) {
        throw new RuntimeException("invalid Java code: " + code + ". " + e);
    }
}

Example 4 with NullLiteralExpr

use of japa.parser.ast.expr.NullLiteralExpr in project enumerable by hraberg.

the class LambdaExpressionTreesTest method turnExpressionsIntoLambdas.

@Test
public void turnExpressionsIntoLambdas() throws Exception {
    Fn0<Object> fn0 = toFn0(Object.class, new NullLiteralExpr());
    assertNull(fn0.call());
    Fn1<Integer, Integer> fn1 = toFn1(Integer.class, Integer.class, "n", parseExpression("n * 2"));
    assertEquals(4, (int) fn1.call(2));
    Fn2<Integer, Integer, Integer> fn2 = toFn2(Integer.class, Integer.class, "n", Integer.class, "m", parseExpression("n * m"));
    assertEquals(8, (int) fn2.call(2, 4));
}

Also used : NullLiteralExpr(japa.parser.ast.expr.NullLiteralExpr) Test(org.junit.Test)

Aggregations

NullLiteralExpr (japa.parser.ast.expr.NullLiteralExpr)4 ParseException (japa.parser.ParseException)2 BlockComment (japa.parser.ast.BlockComment)2 CompilationUnit (japa.parser.ast.CompilationUnit)2 ImportDeclaration (japa.parser.ast.ImportDeclaration)2 LineComment (japa.parser.ast.LineComment)2 PackageDeclaration (japa.parser.ast.PackageDeclaration)2 TypeParameter (japa.parser.ast.TypeParameter)2 AnnotationDeclaration (japa.parser.ast.body.AnnotationDeclaration)2 AnnotationMemberDeclaration (japa.parser.ast.body.AnnotationMemberDeclaration)2 ClassOrInterfaceDeclaration (japa.parser.ast.body.ClassOrInterfaceDeclaration)2 ConstructorDeclaration (japa.parser.ast.body.ConstructorDeclaration)2 EmptyMemberDeclaration (japa.parser.ast.body.EmptyMemberDeclaration)2 EmptyTypeDeclaration (japa.parser.ast.body.EmptyTypeDeclaration)2 EnumConstantDeclaration (japa.parser.ast.body.EnumConstantDeclaration)2 EnumDeclaration (japa.parser.ast.body.EnumDeclaration)2 FieldDeclaration (japa.parser.ast.body.FieldDeclaration)2 InitializerDeclaration (japa.parser.ast.body.InitializerDeclaration)2 JavadocComment (japa.parser.ast.body.JavadocComment)2 MethodDeclaration (japa.parser.ast.body.MethodDeclaration)2