org.walkmod.javalang.compiler.symbols.SymbolVisitorAdapter Maven / Gradle / Ivy
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Library of compiler components to processs Java code.
/*
* Copyright (C) 2015 Raquel Pau and Albert Coroleu.
*
* Walkmod is free software: you can redistribute it and/or modify it under the terms of the GNU
* Lesser General Public License as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Walkmod is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with Walkmod. If
* not, see actions = null;
private SymbolActionProvider actionProvider = null;
private ASTSymbolTypeResolver symbolResolver = null;
public static String VISITOR_SCOPE_PROCESSOR = "_visitor_scope_processor";
public SymbolTable getSymbolTable() {
return symbolTable;
}
public void setSymbolTable(SymbolTable symbolTable) {
this.symbolTable = symbolTable;
}
public ClassLoader getClassLoader() {
return classLoader;
}
public void setClassLoader(ClassLoader classLoader) {
this.classLoader = classLoader;
}
public void setSymbolActions(List actions) {
this.actions = actions;
}
public void setActionProvider(SymbolActionProvider actionProvider) {
this.actionProvider = actionProvider;
}
public void setExpressionTypeAnalyzer(TypeVisitorAdapter expressionTypeAnalyzer) {
this.expressionTypeAnalyzer = expressionTypeAnalyzer;
}
@Override
public void visit(CompilationUnit unit, A arg) {
if (actionProvider != null) {
actions = actionProvider.getActions(unit);
} else {
if (actions == null) {
actions = new LinkedList();
}
actions.add(new ReferencesUpdaterAction());
}
symbolTable = new SymbolTable();
symbolTable.setActions(actions);
symbolTable.pushScope();
typeTable = new TypesLoaderVisitor(symbolTable, actionProvider, actions);
symbolResolver = ASTSymbolTypeResolver.getInstance();
symbolResolver.setSymbolTable(symbolTable);
typeTable.clear();
typeTable.setClassLoader(classLoader);
typeTable.visit(unit, null);
expressionTypeAnalyzer = new TypeVisitorAdapter(symbolTable, this);
ScopeLoader scopeLoader = new ScopeLoader(typeTable, expressionTypeAnalyzer, actionProvider);
PackageDeclaration pkg = unit.getPackage();
if (pkg != null) {
pkg.accept(this, arg);
}
if (unit.getTypes() != null) {
for (TypeDeclaration typeDeclaration : unit.getTypes()) {
//System.out.println("type: "+typeDeclaration.getName());
typeDeclaration.accept(scopeLoader, symbolTable);
}
for (TypeDeclaration typeDeclaration : unit.getTypes()) {
typeDeclaration.accept(this, arg);
}
}
symbolTable.popScope();
}
public void visit(NormalAnnotationExpr n, A arg) {
String type = n.getName().toString();
Symbol s = symbolTable.lookUpSymbolForRead(type, n, ReferenceType.TYPE);
SymbolData sd = null;
if (s == null) {
// it is a full name and thus, it is not imported
sd = new SymbolType(type);
} else {
sd = s.getType();
}
n.setSymbolData(sd);
super.visit(n, arg);
}
public void visit(MarkerAnnotationExpr n, A arg) {
String type = n.getName().toString();
Symbol s = symbolTable.lookUpSymbolForRead(type, n, ReferenceType.TYPE);
SymbolData sd = null;
if (s == null) {
// it is a full name and thus, it is not imported
sd = new SymbolType(type);
} else {
sd = s.getType();
}
n.setSymbolData(sd);
super.visit(n, arg);
}
public void visit(SingleMemberAnnotationExpr n, A arg) {
String typeName = n.getName().toString();
Symbol s = symbolTable.lookUpSymbolForRead(typeName, n, ReferenceType.TYPE);
if (s != null) {
n.setSymbolData(s.getType());
} else {
SymbolType st = new SymbolType(typeName);
n.setSymbolData(st);
}
super.visit(n, arg);
}
private void processJavadocTypeReference(String type, JavadocTag n) {
if (type != null) {
String[] split = type.split("#");
String typeName = split[0];
if (!"".equals(typeName)) {
symbolTable.lookUpSymbolForRead(typeName, n, ReferenceType.TYPE);
}
if (split.length == 2) {
String signature = split[1];
int start = signature.indexOf("(");
if (start > 0 && signature.endsWith(")")) {
signature = signature.substring(start + 1, signature.length() - 1);
String[] params = signature.split(",");
if (params != null) {
for (String param : params) {
if (!"".equals(param)) {
if (param.endsWith("[]")) {
param = param.substring(0, param.length() - 2);
}
symbolTable.lookUpSymbolForRead(param.trim(), n, ReferenceType.TYPE);
}
}
}
}
}
}
}
public void visit(JavadocComment n, A arg) {
List tags = null;
try {
tags = JavadocManager.parse(n.getContent());
} catch (Exception e) {
// nothing, javadoc can be bad writen and the code compiles
}
if (tags != null) {
for (JavadocTag tag : tags) {
String name = tag.getName();
if ("@link".equals(name) || "@linkplain".equals(name) || "@throws".equals(name)) {
List values = tag.getValues();
if (values != null) {
String type = values.get(0);
processJavadocTypeReference(type, tag);
}
} else if ("@see".equals(name)) {
List values = tag.getValues();
if (values != null) {
String type = values.get(0);
if (type != null && !type.startsWith("<") && !type.startsWith("\"")) {
processJavadocTypeReference(type, tag);
}
}
}
}
}
}
public void visit(EnumDeclaration n, A arg) {
pushScope(n);
super.visit(n, arg);
symbolTable.popScope();
}
private void loadThisSymbol(ObjectCreationExpr n, A arg) {
if (AnonymousClassUtil.isAnonymousClass(n) && AnonymousClassUtil.needsSymbolData(n)) {
ScopeLoader scopeLoader = new ScopeLoader(typeTable, expressionTypeAnalyzer, actionProvider);
Scope scope = n.accept(scopeLoader, symbolTable);
if (scope != null) {
symbolTable.pushScope(scope);
}
if (n.getAnonymousClassBody() != null) {
for (BodyDeclaration member : n.getAnonymousClassBody()) {
member.accept(this, arg);
}
}
if (scope != null) {
symbolTable.popScope();
}
}
}
private void loadThisSymbol(EnumConstantDeclaration n, A arg) {
ScopeLoader scopeLoader = new ScopeLoader(typeTable, expressionTypeAnalyzer, actionProvider);
Scope scope = n.accept(scopeLoader, symbolTable);
if (scope != null) {
symbolTable.pushScope(scope);
}
for (BodyDeclaration member : n.getClassBody()) {
member.accept(this, arg);
}
symbolTable.popScope();
}
@Override
public void visit(TypeDeclarationStmt n, A arg) {
if (n.getSymbolData() == null) {
String name = n.getTypeDeclaration().getName();
SymbolType st = new SymbolType(symbolTable.getTypeStatementPreffix(name) + name);
Symbol s = symbolTable.pushSymbol(n.getTypeDeclaration().getName(), ReferenceType.TYPE, st, n);
Symbol globalSymbol = new Symbol(st.getName(), st, n, ReferenceType.TYPE);
symbolTable.getScopes().get(0).addSymbol(globalSymbol);
n.getTypeDeclaration().setSymbolData(s.getType());
s.setInnerScope(new Scope(s));
globalSymbol.setInnerScope(s.getInnerScope());
ScopeLoader scopeLoader = new ScopeLoader(typeTable, expressionTypeAnalyzer, actionProvider);
n.setSymbolData(s.getType());
Scope scope = n.getTypeDeclaration().accept(scopeLoader, symbolTable);
s.setInnerScope(scope);
}
super.visit(n, arg);
}
@Override
public void visit(ConstructorDeclaration n, A arg) {
List> symbols = symbolTable.getScopes().peek().getSymbolsByLocation(n);
Scope scope = symbols.get(0).getInnerScope();
if (scope == null) {
scope = new Scope(symbols.get(0));
symbols.get(0).setInnerScope(scope);
}
symbolTable.pushScope(scope);
LoadTypeParamsAction action = new LoadTypeParamsAction();
action.load(symbolTable, n.getTypeParameters(), (SymbolType) n.getSymbolData());
super.visit(n, arg);
symbolTable.popScope();
}
@Override
public void visit(ObjectCreationExpr n, A arg) {
loadThisSymbol(n, arg);
SymbolType[] argsType = argsType(n.getArgs());
SymbolType scopeType = (SymbolType) n.getType().getSymbolData();
symbolTable.lookUpSymbolForRead(scopeType.getClazz().getSimpleName(), n, scopeType, argsType,
ReferenceType.METHOD);
List typeargs = n.getTypeArgs();
if (typeargs != null) {
for (Type type : typeargs) {
type.accept(this, arg);
}
}
}
private static SymbolType[] argsType(final List exprs) {
List args = exprs;
SymbolType[] argsType = null;
if (args != null) {
Iterator it = args.iterator();
argsType = new SymbolType[args.size()];
int i = 0;
while (it.hasNext()) {
Expression current = it.next();
SymbolType argType = (SymbolType) current.getSymbolData();
argsType[i] = argType;
i++;
}
} else {
argsType = new SymbolType[0];
}
return argsType;
}
public void pushScope(TypeDeclaration n) {
Symbol s = symbolTable.findSymbol(n.getName(), ReferenceType.TYPE);
Scope scope = s.getInnerScope();
symbolTable.pushScope(scope);
}
@Override
public void visit(ClassOrInterfaceDeclaration n, A arg) {
pushScope(n);
//System.out.println(n.getName());
if (n.getJavaDoc() != null) {
n.getJavaDoc().accept(this, arg);
}
if (n.getAnnotations() != null) {
for (AnnotationExpr a : n.getAnnotations()) {
a.accept(this, arg);
}
}
if (n.getTypeParameters() != null) {
for (TypeParameter t : n.getTypeParameters()) {
t.accept(this, arg);
}
}
if (n.getExtends() != null) {
for (ClassOrInterfaceType c : n.getExtends()) {
c.accept(this, arg);
}
}
if (n.getImplements() != null) {
for (ClassOrInterfaceType c : n.getImplements()) {
c.accept(this, arg);
SymbolData sd = c.getSymbolData();
if (sd != null) {
// Java 8 super in an interface is itself
Symbol s = symbolTable.findSymbol(sd.getName(), ReferenceType.TYPE);
if (s != null) {
Scope scope = s.getInnerScope();
if (scope == null) {
scope = new Scope();
scope.addSymbol(new Symbol("super", s.getType(), null));
s.setInnerScope(scope);
}
}
}
}
}
if (n.getMembers() != null) {
for (BodyDeclaration member : n.getMembers()) {
member.accept(this, arg);
}
}
symbolTable.popScope();
}
@Override
public void visit(AnnotationDeclaration n, A arg) {
pushScope(n);
super.visit(n, arg);
symbolTable.popScope();
}
@Override
public void visit(EnumConstantDeclaration n, A arg) {
if (n.getJavaDoc() != null) {
n.getJavaDoc().accept(this, arg);
}
if (n.getAnnotations() != null) {
for (AnnotationExpr a : n.getAnnotations()) {
a.accept(this, arg);
}
}
if (n.getArgs() != null) {
for (Expression e : n.getArgs()) {
e.accept(expressionTypeAnalyzer, arg);
}
}
if (n.getClassBody() != null) {
loadThisSymbol(n, arg);
}
}
public void visit(VariableDeclarator n, A arg) {
if (n.getInit() != null) {
Symbol aux = symbolTable.findSymbol(n.getId().getName(), ReferenceType.VARIABLE);
Scope scope = new Scope(aux);
aux.setInnerScope(scope);
symbolTable.pushScope(scope);
n.getInit().accept(expressionTypeAnalyzer, arg);
symbolTable.popScope();
}
}
@Override
public void visit(AnnotationMemberDeclaration n, A arg) {
if (n.getJavaDoc() != null) {
n.getJavaDoc().accept(this, arg);
}
if (n.getAnnotations() != null) {
for (AnnotationExpr a : n.getAnnotations()) {
a.accept(this, arg);
}
}
n.getType().accept(expressionTypeAnalyzer, arg);
Expression expr = n.getDefaultValue();
if (expr != null) {
expr.accept(expressionTypeAnalyzer, arg);
}
}
@Override
public void visit(BlockStmt n, A arg) {
List actions = null;
if (actionProvider != null) {
actions = actionProvider.getActions(n);
}
symbolTable.addActionsToScope(actions);
symbolTable.pushScope();
super.visit(n, arg);
List stmts = n.getStmts();
if (stmts != null) {
SymbolData sd = null;
for (Statement stmt : stmts) {
SymbolData stmtSd = stmt.getSymbolData();
if (stmtSd != null) {
if (sd == null) {
sd = stmtSd;
} else {
sd = sd.merge(stmtSd);
}
}
}
n.setSymbolData(sd);
}
symbolTable.popScope();
}
@Override
public void visit(MethodDeclaration n, A arg) {
List> symbols = symbolTable.getScopes().peek().getSymbolsByLocation(n);
Scope scope = symbols.get(0).getInnerScope();
if (scope == null) {
scope = new Scope(symbols.get(0));
symbols.get(0).setInnerScope(scope);
}
symbolTable.pushScope(scope);
super.visit(n, arg);
symbolTable.popScope();
}
@Override
public void visit(Parameter n, A arg) {
super.visit(n, arg);
Type ptype = n.getType();
SymbolType type = null;
if (ptype != null) {
type = (SymbolType) ptype.getSymbolData();
} else {
type = (SymbolType) n.getSymbolData();
}
VariableDeclaratorId id = n.getId();
if (id != null) {
int arrayCount = id.getArrayCount();
if (arrayCount > 0) {
type.setArrayCount(type.getArrayCount() + arrayCount);
}
}
if (n.isVarArgs()) {
type.setArrayCount(type.getArrayCount() + 1);
}
List actions = null;
if (actionProvider != null) {
actions = actionProvider.getActions(n);
}
symbolTable.pushSymbol(n.getId().getName(), ReferenceType.VARIABLE, type, n, actions);
n.setSymbolData(type);
}
@Override
public void visit(TryStmt n, A arg) {
symbolTable.pushScope();
super.visit(n, arg);
symbolTable.popScope();
}
@Override
public void visit(CatchClause n, A arg) {
symbolTable.pushScope();
super.visit(n, arg);
symbolTable.popScope();
}
@Override
public void visit(MultiTypeParameter n, A arg) {
super.visit(n, arg);
List types = n.getTypes();
List symbolTypes = new LinkedList();
Iterator it = types.iterator();
while (it.hasNext()) {
Type aux = it.next();
SymbolType type = symbolResolver.valueOf(aux);
aux.setSymbolData(type);
symbolTypes.add(type);
}
List actions = null;
if (actionProvider != null) {
actions = actionProvider.getActions(n);
}
MultiTypeSymbol symbol = new MultiTypeSymbol(n.getId().getName(), symbolTypes, n, actions);
symbolTable.pushSymbol(symbol);
n.setSymbolData(new SymbolType(symbolTypes));
}
@Override
public void visit(MethodCallExpr n, A arg) {
SymbolType scopeType = null;
if (n.getScope() != null) {
scopeType = (SymbolType) n.getScope().getSymbolData();
}
SymbolType[] argsType = argsType(n.getArgs());
symbolTable.lookUpSymbolForRead(n.getName(), n, scopeType, argsType, ReferenceType.METHOD);
List typeargs = n.getTypeArgs();
if (typeargs != null) {
for (Type type : typeargs) {
type.accept(this, arg);
}
}
}
@Override
public void visit(FieldAccessExpr n, A arg) {
if (n.getScope() != null) {
if (!arg.containsKey(VISITOR_SCOPE_PROCESSOR)) {
n.getScope().accept(this, arg);
}
SymbolType scopeType = (SymbolType) n.getScope().getSymbolData();
lookupSymbol(n.getField(), arg, n, scopeType, ReferenceType.VARIABLE);
} else {
lookupSymbol(n.getField(), arg, n, null, ReferenceType.VARIABLE);
}
}
public void visit(AssignExpr n, A arg) {
AccessType old = (AccessType) arg.get(AccessType.ACCESS_TYPE);
arg.put(AccessType.ACCESS_TYPE, AccessType.WRITE);
n.getTarget().accept(expressionTypeAnalyzer, arg);
arg.put(AccessType.ACCESS_TYPE, AccessType.READ);
n.getValue().accept(expressionTypeAnalyzer, arg);
arg.put(AccessType.ACCESS_TYPE, old);
n.setSymbolData(n.getTarget().getSymbolData());
}
public void visit(VariableDeclarationExpr n, A arg) {
Type type = n.getType();
SymbolType st = (SymbolType) type.getSymbolData();
if (st == null) {
type.accept(expressionTypeAnalyzer, arg);
st = (SymbolType) type.getSymbolData();
if (st == null) {
throw new NoSuchExpressionTypeException(
"The type of " + type.toString() + "(" + type.getClass().getName() + ") at ["
+ type.getBeginLine() + "," + type.getBeginColumn() + "] is not found.");
}
}
List actions = null;
if (actionProvider != null) {
actions = actionProvider.getActions(n);
}
List vars = n.getVars();
for (VariableDeclarator vd : vars) {
SymbolType aux = st.clone();
if (vd.getId().getArrayCount() > 0) {
aux.setArrayCount(vd.getId().getArrayCount());
}
symbolTable.pushSymbol(vd.getId().getName(), ReferenceType.VARIABLE, aux, vd, actions);
Expression expr = vd.getInit();
if (expr != null && !(n.getParentNode() instanceof ExpressionStmt)) { // e.g
// TryStmt
expr.accept(expressionTypeAnalyzer, arg);
}
}
}
@Override
public void visit(ExpressionStmt n, A arg) {
n.getExpression().accept(expressionTypeAnalyzer, arg);
}
@Override
public void visit(AssertStmt n, A arg) {
n.getCheck().accept(expressionTypeAnalyzer, arg);
if (n.getMessage() != null) {
n.getMessage().accept(this, arg);
}
}
@Override
public void visit(DoStmt n, A arg) {
n.getBody().accept(this, arg);
n.getCondition().accept(expressionTypeAnalyzer, arg);
SymbolData sd = n.getBody().getSymbolData();
n.setSymbolData(sd);
}
@Override
public void visit(ExplicitConstructorInvocationStmt n, A arg) {
if (!n.isThis()) {
if (n.getExpr() != null) {
n.getExpr().accept(expressionTypeAnalyzer, arg);
n.setSymbolData(n.getExpr().getSymbolData());
}
}
// resolve constructor symbol data
n.accept(expressionTypeAnalyzer, arg);
if (n.getTypeArgs() != null) {
for (Type t : n.getTypeArgs()) {
t.accept(this, arg);
}
}
if (n.getArgs() != null) {
for (Expression e : n.getArgs()) {
e.accept(expressionTypeAnalyzer, arg);
}
}
}
@Override
public void visit(ForeachStmt n, A arg) {
symbolTable.pushScope();
n.getVariable().accept(expressionTypeAnalyzer, arg);
n.getIterable().accept(expressionTypeAnalyzer, arg);
n.getBody().accept(this, arg);
SymbolData sd = n.getBody().getSymbolData();
n.setSymbolData(sd);
symbolTable.popScope();
}
@Override
public void visit(ForStmt n, A arg) {
symbolTable.pushScope();
if (n.getInit() != null) {
for (Expression e : n.getInit()) {
e.accept(expressionTypeAnalyzer, arg);
}
}
if (n.getCompare() != null) {
n.getCompare().accept(expressionTypeAnalyzer, arg);
}
if (n.getUpdate() != null) {
for (Expression e : n.getUpdate()) {
e.accept(expressionTypeAnalyzer, arg);
}
}
n.getBody().accept(this, arg);
SymbolData sd = n.getBody().getSymbolData();
n.setSymbolData(sd);
symbolTable.popScope();
}
@Override
public void visit(IfStmt n, A arg) {
n.getCondition().accept(expressionTypeAnalyzer, arg);
n.getThenStmt().accept(this, arg);
SymbolData symData = n.getThenStmt().getSymbolData();
n.setSymbolData(symData);
if (n.getElseStmt() != null) {
n.getElseStmt().accept(this, arg);
if (symData != null) {
symData = symData.merge(n.getElseStmt().getSymbolData());
}
n.setSymbolData(symData);
}
}
@Override
public void visit(ReturnStmt n, A arg) {
if (n.getExpr() != null) {
n.getExpr().accept(expressionTypeAnalyzer, arg);
n.setSymbolData(n.getExpr().getSymbolData());
} else {
n.setSymbolData(new SymbolType(void.class));
}
}
@Override
public void visit(SwitchEntryStmt n, A arg) {
if (n.getLabel() != null) {
n.getLabel().accept(expressionTypeAnalyzer, arg);
}
if (n.getStmts() != null) {
SymbolData sd = null;
for (Statement s : n.getStmts()) {
s.accept(this, arg);
if (sd == null) {
sd = s.getSymbolData();
} else {
sd = sd.merge(s.getSymbolData());
}
}
n.setSymbolData(sd);
}
}
@Override
public void visit(SwitchStmt n, A arg) {
n.getSelector().accept(expressionTypeAnalyzer, arg);
if (n.getEntries() != null) {
SymbolData sd = null;
for (SwitchEntryStmt e : n.getEntries()) {
e.accept(this, arg);
if (sd == null) {
sd = e.getSymbolData();
} else {
sd = sd.merge(e.getSymbolData());
}
}
}
}
@Override
public void visit(SynchronizedStmt n, A arg) {
n.getExpr().accept(expressionTypeAnalyzer, arg);
n.getBlock().accept(this, arg);
n.setSymbolData(n.getBlock().getSymbolData());
}
@Override
public void visit(ThrowStmt n, A arg) {
n.getExpr().accept(expressionTypeAnalyzer, arg);
n.setSymbolData(null);
}
@Override
public void visit(WhileStmt n, A arg) {
n.getCondition().accept(expressionTypeAnalyzer, arg);
n.getBody().accept(this, arg);
n.setSymbolData(n.getBody().getSymbolData());
}
private void lookupSymbol(String name, A arg, SymbolReference n, SymbolType scope, ReferenceType... referenceType) {
AccessType atype = (AccessType) arg.get(AccessType.ACCESS_TYPE);
if (atype != null) {
if (atype.equals(AccessType.WRITE)) {
symbolTable.lookUpSymbolForWrite(name, n, scope, null, referenceType);
} else {
symbolTable.lookUpSymbolForRead(name, n, scope, null, referenceType);
}
} else {
symbolTable.lookUpSymbolForRead(name, n, scope, null, referenceType);
}
}
public void visit(NameExpr n, A arg) {
lookupSymbol(n.toString(), arg, n, null, ReferenceType.VARIABLE, ReferenceType.ENUM_LITERAL,
ReferenceType.TYPE);
}
@Override
public void visit(MethodReferenceExpr n, A arg) {
SymbolType scopeType = null;
if (n.getScope() == null) {
scopeType = symbolTable.getType("this", ReferenceType.VARIABLE);
} else {
scopeType = (SymbolType) n.getScope().getSymbolData();
if (scopeType == null) {
n.getScope().accept(expressionTypeAnalyzer, arg);
scopeType = (SymbolType) n.getScope().getSymbolData();
}
}
SymbolType[] argsType = (SymbolType[]) n.getReferencedArgsSymbolData();
symbolTable.lookUpSymbolForRead(n.getIdentifier(), n, scopeType, argsType, ReferenceType.METHOD);
}
@Override
public void visit(TypeParameter n, A arg) {
super.visit(n, arg);
symbolTable.lookUpSymbolForRead(n.getName(), null, ReferenceType.TYPE);
}
@Override
public void visit(SuperExpr n, A arg) {
Expression classExpr = n.getClassExpr();
Symbol s = null;
if (classExpr == null) {
s = symbolTable.lookUpSymbolForRead("super", null, ReferenceType.VARIABLE);
} else {
classExpr.accept(this, arg);
SymbolData sd = classExpr.getSymbolData();
Class aux = sd.getClazz().getSuperclass();
if (aux == null) {
aux = Object.class;
}
s = symbolTable.lookUpSymbolForRead(aux.getCanonicalName(), null, ReferenceType.TYPE);
}
if (n.getSymbolData() == null && s != null) {
n.setSymbolData(s.getType());
}
}
@Override
public void visit(ThisExpr n, A arg) {
Expression classExpr = n.getClassExpr();
Symbol s = null;
if (classExpr == null) {
s = symbolTable.lookUpSymbolForRead("this", null, ReferenceType.VARIABLE);
if (n.getSymbolData() == null && s != null) {
n.setSymbolData(s.getType());
}
} else {
classExpr.accept(this, arg);
SymbolData sd = classExpr.getSymbolData();
n.setSymbolData(sd);
}
}
@Override
public void visit(WildcardType n, A arg) {
n.accept(expressionTypeAnalyzer, arg);
}
@Override
public void visit(VoidType n, A arg) {
n.accept(expressionTypeAnalyzer, arg);
}
@Override
public void visit(org.walkmod.javalang.ast.type.ReferenceType n, A arg) {
n.accept(expressionTypeAnalyzer, arg);
}
@Override
public void visit(PrimitiveType n, A arg) {
n.accept(expressionTypeAnalyzer, arg);
}
@Override
public void visit(ClassOrInterfaceType n, A arg) {
n.accept(expressionTypeAnalyzer, arg);
}
@Override
public void visit(FieldDeclaration n, A arg) {
super.visit(n, arg);
n.accept(expressionTypeAnalyzer, arg);
}
}
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