use of lombok.javac.JavacResolution in project lombok by rzwitserloot.
the class HandleDelegate method handle.
@Override
public void handle(AnnotationValues<Delegate> annotation, JCAnnotation ast, JavacNode annotationNode) {
handleExperimentalFlagUsage(annotationNode, ConfigurationKeys.DELEGATE_FLAG_USAGE, "@Delegate");
@SuppressWarnings("deprecation") Class<? extends Annotation> oldDelegate = lombok.Delegate.class;
deleteAnnotationIfNeccessary(annotationNode, Delegate.class, oldDelegate);
Type delegateType;
Name delegateName = annotationNode.toName(annotationNode.up().getName());
DelegateReceiver delegateReceiver;
JavacResolution reso = new JavacResolution(annotationNode.getContext());
JCTree member = annotationNode.up().get();
if (annotationNode.up().getKind() == Kind.FIELD) {
if ((((JCVariableDecl) member).mods.flags & Flags.STATIC) != 0) {
annotationNode.addError(LEGALITY_OF_DELEGATE);
return;
}
delegateReceiver = DelegateReceiver.FIELD;
delegateType = member.type;
if (delegateType == null)
reso.resolveClassMember(annotationNode.up());
delegateType = member.type;
} else if (annotationNode.up().getKind() == Kind.METHOD) {
if (!(member instanceof JCMethodDecl)) {
annotationNode.addError(LEGALITY_OF_DELEGATE);
return;
}
JCMethodDecl methodDecl = (JCMethodDecl) member;
if (!methodDecl.params.isEmpty() || (methodDecl.mods.flags & Flags.STATIC) != 0) {
annotationNode.addError(LEGALITY_OF_DELEGATE);
return;
}
delegateReceiver = DelegateReceiver.METHOD;
delegateType = methodDecl.restype.type;
if (delegateType == null)
reso.resolveClassMember(annotationNode.up());
delegateType = methodDecl.restype.type;
} else {
// As the annotation is legal on fields and methods only, javac itself will take care of printing an error message for this.
return;
}
List<Object> delegateTypes = annotation.getActualExpressions("types");
List<Object> excludeTypes = annotation.getActualExpressions("excludes");
List<Type> toDelegate = new ArrayList<Type>();
List<Type> toExclude = new ArrayList<Type>();
if (delegateTypes.isEmpty()) {
if (delegateType != null)
toDelegate.add(delegateType);
} else {
for (Object dt : delegateTypes) {
if (dt instanceof JCFieldAccess && ((JCFieldAccess) dt).name.toString().equals("class")) {
Type type = ((JCFieldAccess) dt).selected.type;
if (type == null)
reso.resolveClassMember(annotationNode);
type = ((JCFieldAccess) dt).selected.type;
if (type != null)
toDelegate.add(type);
}
}
}
for (Object et : excludeTypes) {
if (et instanceof JCFieldAccess && ((JCFieldAccess) et).name.toString().equals("class")) {
Type type = ((JCFieldAccess) et).selected.type;
if (type == null)
reso.resolveClassMember(annotationNode);
type = ((JCFieldAccess) et).selected.type;
if (type != null)
toExclude.add(type);
}
}
List<MethodSig> signaturesToDelegate = new ArrayList<MethodSig>();
List<MethodSig> signaturesToExclude = new ArrayList<MethodSig>();
Set<String> banList = new HashSet<String>();
banList.addAll(METHODS_IN_OBJECT);
try {
for (Type t : toExclude) {
if (t instanceof ClassType) {
ClassType ct = (ClassType) t;
addMethodBindings(signaturesToExclude, ct, annotationNode.getTypesUtil(), banList);
} else {
annotationNode.addError("@Delegate can only use concrete class types, not wildcards, arrays, type variables, or primitives.");
return;
}
}
for (MethodSig sig : signaturesToExclude) {
banList.add(printSig(sig.type, sig.name, annotationNode.getTypesUtil()));
}
for (Type t : toDelegate) {
if (t instanceof ClassType) {
ClassType ct = (ClassType) t;
addMethodBindings(signaturesToDelegate, ct, annotationNode.getTypesUtil(), banList);
} else {
annotationNode.addError("@Delegate can only use concrete class types, not wildcards, arrays, type variables, or primitives.");
return;
}
}
for (MethodSig sig : signaturesToDelegate) generateAndAdd(sig, annotationNode, delegateName, delegateReceiver);
} catch (DelegateRecursion e) {
annotationNode.addError(String.format(RECURSION_NOT_ALLOWED, e.member, e.type));
}
}
use of lombok.javac.JavacResolution in project lombok by rzwitserloot.
the class HandleVal method visitLocal.
@Override
public void visitLocal(JavacNode localNode, JCVariableDecl local) {
JCTree typeTree = local.vartype;
if (typeTree == null)
return;
String typeTreeToString = typeTree.toString();
if (!(eq(typeTreeToString, "val") || eq(typeTreeToString, "var")))
return;
boolean isVal = typeMatches(val.class, localNode, typeTree);
boolean isVar = typeMatches(var.class, localNode, typeTree);
if (!(isVal || isVar))
return;
if (isVal)
handleFlagUsage(localNode, ConfigurationKeys.VAL_FLAG_USAGE, "val");
if (isVar)
handleFlagUsage(localNode, ConfigurationKeys.VAR_FLAG_USAGE, "var");
JCTree parentRaw = localNode.directUp().get();
if (isVal && parentRaw instanceof JCForLoop) {
localNode.addError("'val' is not allowed in old-style for loops");
return;
}
JCExpression rhsOfEnhancedForLoop = null;
if (local.init == null) {
if (parentRaw instanceof JCEnhancedForLoop) {
JCEnhancedForLoop efl = (JCEnhancedForLoop) parentRaw;
if (efl.var == local)
rhsOfEnhancedForLoop = efl.expr;
}
}
final String annotation = typeTreeToString;
if (rhsOfEnhancedForLoop == null && local.init == null) {
localNode.addError("'" + annotation + "' on a local variable requires an initializer expression");
return;
}
if (local.init instanceof JCNewArray && ((JCNewArray) local.init).elemtype == null) {
localNode.addError("'" + annotation + "' is not compatible with array initializer expressions. Use the full form (new int[] { ... } instead of just { ... })");
return;
}
if (localNode.shouldDeleteLombokAnnotations()) {
JavacHandlerUtil.deleteImportFromCompilationUnit(localNode, val.class.getName());
JavacHandlerUtil.deleteImportFromCompilationUnit(localNode, var.class.getName());
}
if (isVal)
local.mods.flags |= Flags.FINAL;
if (!localNode.shouldDeleteLombokAnnotations()) {
JCAnnotation valAnnotation = recursiveSetGeneratedBy(localNode.getTreeMaker().Annotation(local.vartype, List.<JCExpression>nil()), typeTree, localNode.getContext());
local.mods.annotations = local.mods.annotations == null ? List.of(valAnnotation) : local.mods.annotations.append(valAnnotation);
}
if (JavacResolution.platformHasTargetTyping()) {
local.vartype = localNode.getAst().getTreeMaker().Ident(localNode.getAst().toName("___Lombok_VAL_Attrib__"));
} else {
local.vartype = JavacResolution.createJavaLangObject(localNode.getAst());
}
Type type;
try {
if (rhsOfEnhancedForLoop == null) {
if (local.init.type == null) {
if (isVar && local.init instanceof JCLiteral && ((JCLiteral) local.init).value == null) {
localNode.addError("variable initializer is 'null'");
}
JavacResolution resolver = new JavacResolution(localNode.getContext());
try {
type = ((JCExpression) resolver.resolveMethodMember(localNode).get(local.init)).type;
} catch (RuntimeException e) {
System.err.println("Exception while resolving: " + localNode);
throw e;
}
} else {
type = local.init.type;
if (type.isErroneous()) {
try {
JavacResolution resolver = new JavacResolution(localNode.getContext());
local.type = Symtab.instance(localNode.getContext()).unknownType;
type = ((JCExpression) resolver.resolveMethodMember(localNode).get(local.init)).type;
} catch (RuntimeException e) {
System.err.println("Exception while resolving: " + localNode);
throw e;
}
}
}
} else {
if (rhsOfEnhancedForLoop.type == null) {
JavacResolution resolver = new JavacResolution(localNode.getContext());
type = ((JCExpression) resolver.resolveMethodMember(localNode.directUp()).get(rhsOfEnhancedForLoop)).type;
} else {
type = rhsOfEnhancedForLoop.type;
}
}
try {
JCExpression replacement;
if (rhsOfEnhancedForLoop != null) {
Type componentType = JavacResolution.ifTypeIsIterableToComponent(type, localNode.getAst());
if (componentType == null)
replacement = JavacResolution.createJavaLangObject(localNode.getAst());
else
replacement = JavacResolution.typeToJCTree(componentType, localNode.getAst(), false);
} else {
replacement = JavacResolution.typeToJCTree(type, localNode.getAst(), false);
}
if (replacement != null) {
local.vartype = replacement;
} else {
local.vartype = JavacResolution.createJavaLangObject(localNode.getAst());
}
localNode.getAst().setChanged();
} catch (JavacResolution.TypeNotConvertibleException e) {
localNode.addError("Cannot use '" + annotation + "' here because initializer expression does not have a representable type: " + e.getMessage());
local.vartype = JavacResolution.createJavaLangObject(localNode.getAst());
}
} catch (RuntimeException e) {
local.vartype = JavacResolution.createJavaLangObject(localNode.getAst());
throw e;
} finally {
recursiveSetGeneratedBy(local.vartype, typeTree, localNode.getContext());
}
}
Aggregations