org.eclipse.jdt.internal.compiler.ast.ExplicitConstructorCall Java Examples

/**
 * If the given ast node is inside an explicit constructor call
 * then wrap it with a fake constructor call.
 * Returns the wrapped completion node or the completion node itself.
 */
protected ASTNode wrapWithExplicitConstructorCallIfNeeded(ASTNode ast) {
	int selector;
	if (ast != null && topKnownElementKind(ASSIST_PARSER) == K_SELECTOR && ast instanceof Expression &&
			(((selector = topKnownElementInfo(ASSIST_PARSER)) == THIS_CONSTRUCTOR) ||
			(selector == SUPER_CONSTRUCTOR))) {
		ExplicitConstructorCall call = new ExplicitConstructorCall(
			(selector == THIS_CONSTRUCTOR) ?
				ExplicitConstructorCall.This :
				ExplicitConstructorCall.Super
		);
		call.arguments = new Expression[] {(Expression)ast};
		call.sourceStart = ast.sourceStart;
		call.sourceEnd = ast.sourceEnd;
		return call;
	} else {
		return ast;
	}
}
 

private void createPrivateDefaultConstructor(EclipseNode typeNode, EclipseNode sourceNode) {
	ASTNode source = sourceNode.get();
	
	TypeDeclaration typeDeclaration = ((TypeDeclaration) typeNode.get());
	long p = (long) source.sourceStart << 32 | source.sourceEnd;
	
	ConstructorDeclaration constructor = new ConstructorDeclaration(((CompilationUnitDeclaration) typeNode.top().get()).compilationResult);
	
	constructor.modifiers = ClassFileConstants.AccPrivate;
	constructor.selector = typeDeclaration.name;
	constructor.constructorCall = new ExplicitConstructorCall(ExplicitConstructorCall.ImplicitSuper);
	constructor.constructorCall.sourceStart = source.sourceStart;
	constructor.constructorCall.sourceEnd = source.sourceEnd;
	constructor.thrownExceptions = null;
	constructor.typeParameters = null;
	constructor.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
	constructor.bodyStart = constructor.declarationSourceStart = constructor.sourceStart = source.sourceStart;
	constructor.bodyEnd = constructor.declarationSourceEnd = constructor.sourceEnd = source.sourceEnd;
	constructor.arguments = null;
	
	AllocationExpression exception = new AllocationExpression();
	setGeneratedBy(exception, source);
	long[] ps = new long[JAVA_LANG_UNSUPPORTED_OPERATION_EXCEPTION.length];
	Arrays.fill(ps, p);
	exception.type = new QualifiedTypeReference(JAVA_LANG_UNSUPPORTED_OPERATION_EXCEPTION, ps);
	setGeneratedBy(exception.type, source);
	exception.arguments = new Expression[] {
			new StringLiteral(UNSUPPORTED_MESSAGE, source.sourceStart, source.sourceEnd, 0)
	};
	setGeneratedBy(exception.arguments[0], source);
	ThrowStatement throwStatement = new ThrowStatement(exception, source.sourceStart, source.sourceEnd);
	setGeneratedBy(throwStatement, source);
	
	constructor.statements = new Statement[] {throwStatement};
	
	injectMethod(typeNode, constructor);
}
 

public void handleMethod(EclipseNode annotation, AbstractMethodDeclaration method, List<DeclaredException> exceptions) {
	if (method.isAbstract()) {
		annotation.addError("@SneakyThrows can only be used on concrete methods.");
		return;
	}
	
	if (method.statements == null || method.statements.length == 0) {
		boolean hasConstructorCall = false;
		if (method instanceof ConstructorDeclaration) {
			ExplicitConstructorCall constructorCall = ((ConstructorDeclaration) method).constructorCall;
			hasConstructorCall = constructorCall != null && !constructorCall.isImplicitSuper() && !constructorCall.isImplicitThis();
		}
		
		if (hasConstructorCall) {
			annotation.addWarning("Calls to sibling / super constructors are always excluded from @SneakyThrows; @SneakyThrows has been ignored because there is no other code in this constructor.");
		} else {
			annotation.addWarning("This method or constructor is empty; @SneakyThrows has been ignored.");
		}
		
		return;
	}
	
	Statement[] contents = method.statements;
	
	for (DeclaredException exception : exceptions) {
		contents = new Statement[] { buildTryCatchBlock(contents, exception, exception.node, method) };
	}
	
	method.statements = contents;
	annotation.up().rebuild();
}
 

synchronized IMethodBinding resolveConstructor(ConstructorInvocation expression) {
	org.eclipse.jdt.internal.compiler.ast.ASTNode node = (org.eclipse.jdt.internal.compiler.ast.ASTNode) this.newAstToOldAst.get(expression);
	if (node instanceof ExplicitConstructorCall) {
		ExplicitConstructorCall explicitConstructorCall = (ExplicitConstructorCall) node;
		return getMethodBinding(explicitConstructorCall.binding);
	}
	return null;
}
 

synchronized IMethodBinding resolveConstructor(SuperConstructorInvocation expression) {
	org.eclipse.jdt.internal.compiler.ast.ASTNode node = (org.eclipse.jdt.internal.compiler.ast.ASTNode) this.newAstToOldAst.get(expression);
	if (node instanceof ExplicitConstructorCall) {
		ExplicitConstructorCall explicitConstructorCall = (ExplicitConstructorCall) node;
		return getMethodBinding(explicitConstructorCall.binding);
	}
	return null;
}
 

@Override
@Nullable
public ResolvedNode resolve(@NonNull JavaContext context, @NonNull Node node) {
    Object nativeNode = getNativeNode(node);
    if (nativeNode == null) {
        return null;
    }

    if (nativeNode instanceof NameReference) {
        return resolve(((NameReference) nativeNode).binding);
    } else if (nativeNode instanceof TypeReference) {
        return resolve(((TypeReference) nativeNode).resolvedType);
    } else if (nativeNode instanceof MessageSend) {
        return resolve(((MessageSend) nativeNode).binding);
    } else if (nativeNode instanceof AllocationExpression) {
        return resolve(((AllocationExpression) nativeNode).binding);
    } else if (nativeNode instanceof TypeDeclaration) {
        return resolve(((TypeDeclaration) nativeNode).binding);
    } else if (nativeNode instanceof ExplicitConstructorCall) {
        return resolve(((ExplicitConstructorCall) nativeNode).binding);
    } else if (nativeNode instanceof Annotation) {
        AnnotationBinding compilerAnnotation =
                ((Annotation) nativeNode).getCompilerAnnotation();
        if (compilerAnnotation != null) {
            return new EcjResolvedAnnotation(compilerAnnotation);
        }
        return resolve(((Annotation) nativeNode).resolvedType);
    } else if (nativeNode instanceof AbstractMethodDeclaration) {
        return resolve(((AbstractMethodDeclaration) nativeNode).binding);
    } else if (nativeNode instanceof AbstractVariableDeclaration) {
        if (nativeNode instanceof LocalDeclaration) {
            return resolve(((LocalDeclaration) nativeNode).binding);
        } else if (nativeNode instanceof FieldDeclaration) {
            FieldDeclaration fieldDeclaration = (FieldDeclaration) nativeNode;
            if (fieldDeclaration.initialization instanceof AllocationExpression) {
                AllocationExpression allocation =
                        (AllocationExpression)fieldDeclaration.initialization;
                if (allocation.binding != null) {
                    // Field constructor call: this is an enum constant.
                    return new EcjResolvedMethod(allocation.binding);
                }
            }
            return resolve(fieldDeclaration.binding);
        }
    }

    // TODO: Handle org.eclipse.jdt.internal.compiler.ast.SuperReference. It
    // doesn't contain an actual method binding; the parent node call should contain
    // it, but is missing a native node reference; investigate the ECJ bridge's super
    // handling.

    return null;
}
 

public static ConstructorDeclaration createConstructor(
		AccessLevel level, EclipseNode type, Collection<EclipseNode> fields,
		Boolean suppressConstructorProperties, EclipseNode sourceNode, List<Annotation> onConstructor) {
	
	ASTNode source = sourceNode.get();
	TypeDeclaration typeDeclaration = ((TypeDeclaration)type.get());
	long p = (long)source.sourceStart << 32 | source.sourceEnd;
	
	boolean isEnum = (((TypeDeclaration)type.get()).modifiers & ClassFileConstants.AccEnum) != 0;
	
	if (isEnum) level = AccessLevel.PRIVATE;
	
	if (suppressConstructorProperties == null) {
		if (fields.isEmpty()) {
			suppressConstructorProperties = false;
		} else {
			suppressConstructorProperties = Boolean.TRUE.equals(type.getAst().readConfiguration(ConfigurationKeys.ANY_CONSTRUCTOR_SUPPRESS_CONSTRUCTOR_PROPERTIES));
		}
	}
	
	ConstructorDeclaration constructor = new ConstructorDeclaration(
			((CompilationUnitDeclaration) type.top().get()).compilationResult);
	
	constructor.modifiers = toEclipseModifier(level);
	constructor.selector = typeDeclaration.name;
	constructor.constructorCall = new ExplicitConstructorCall(ExplicitConstructorCall.ImplicitSuper);
	constructor.constructorCall.sourceStart = source.sourceStart;
	constructor.constructorCall.sourceEnd = source.sourceEnd;
	constructor.thrownExceptions = null;
	constructor.typeParameters = null;
	constructor.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
	constructor.bodyStart = constructor.declarationSourceStart = constructor.sourceStart = source.sourceStart;
	constructor.bodyEnd = constructor.declarationSourceEnd = constructor.sourceEnd = source.sourceEnd;
	constructor.arguments = null;
	
	List<Argument> params = new ArrayList<Argument>();
	List<Statement> assigns = new ArrayList<Statement>();
	List<Statement> nullChecks = new ArrayList<Statement>();
	
	for (EclipseNode fieldNode : fields) {
		FieldDeclaration field = (FieldDeclaration) fieldNode.get();
		char[] rawName = field.name;
		char[] fieldName = removePrefixFromField(fieldNode);
		FieldReference thisX = new FieldReference(rawName, p);
		thisX.receiver = new ThisReference((int)(p >> 32), (int)p);
		
		SingleNameReference assignmentNameRef = new SingleNameReference(fieldName, p);
		Assignment assignment = new Assignment(thisX, assignmentNameRef, (int)p);
		assignment.sourceStart = (int)(p >> 32); assignment.sourceEnd = assignment.statementEnd = (int)(p >> 32);
		assigns.add(assignment);
		long fieldPos = (((long)field.sourceStart) << 32) | field.sourceEnd;
		Argument parameter = new Argument(fieldName, fieldPos, copyType(field.type, source), Modifier.FINAL);
		Annotation[] nonNulls = findAnnotations(field, NON_NULL_PATTERN);
		Annotation[] nullables = findAnnotations(field, NULLABLE_PATTERN);
		if (nonNulls.length != 0) {
			Statement nullCheck = generateNullCheck(field, sourceNode);
			if (nullCheck != null) nullChecks.add(nullCheck);
		}
		parameter.annotations = copyAnnotations(source, nonNulls, nullables);
		params.add(parameter);
	}
	
	nullChecks.addAll(assigns);
	constructor.statements = nullChecks.isEmpty() ? null : nullChecks.toArray(new Statement[nullChecks.size()]);
	constructor.arguments = params.isEmpty() ? null : params.toArray(new Argument[params.size()]);
	
	/* Generate annotations that must  be put on the generated method, and attach them. */ {
		Annotation[] constructorProperties = null;
		if (!suppressConstructorProperties && level != AccessLevel.PRIVATE && level != AccessLevel.PACKAGE && !isLocalType(type)) {
			constructorProperties = createConstructorProperties(source, fields);
		}
		
		constructor.annotations = copyAnnotations(source,
				onConstructor.toArray(new Annotation[0]),
				constructorProperties);
	}
	
	constructor.traverse(new SetGeneratedByVisitor(source), typeDeclaration.scope);
	return constructor;
}
 

@Override public boolean visit(ExplicitConstructorCall node, BlockScope scope) {
	fixPositions(setGeneratedBy(node, source));
	return super.visit(node, scope);
}
 

protected void consumeMethodInvocationName() {
	// MethodInvocation ::= Name '(' ArgumentListopt ')'

	// when the name is only an identifier...we have a message send to "this" (implicit)

	char[] selector = this.identifierStack[this.identifierPtr];
	int accessMode;
	if(selector == assistIdentifier()) {
		if(CharOperation.equals(selector, SUPER)) {
			accessMode = ExplicitConstructorCall.Super;
		} else if(CharOperation.equals(selector, THIS)) {
			accessMode = ExplicitConstructorCall.This;
		} else {
			super.consumeMethodInvocationName();
			return;
		}
	} else {
		super.consumeMethodInvocationName();
		return;
	}

	final ExplicitConstructorCall constructorCall = new SelectionOnExplicitConstructorCall(accessMode);
	constructorCall.sourceEnd = this.rParenPos;
	constructorCall.sourceStart = (int) (this.identifierPositionStack[this.identifierPtr] >>> 32);
	int length;
	if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
		this.expressionPtr -= length;
		System.arraycopy(this.expressionStack, this.expressionPtr + 1, constructorCall.arguments = new Expression[length], 0, length);
	}

	if (!this.diet){
		pushOnAstStack(constructorCall);
		this.restartRecovery	= true;	// force to restart in recovery mode
		this.lastIgnoredToken = -1;
	} else {
		pushOnExpressionStack(new Expression(){
			public TypeBinding resolveType(BlockScope scope) {
				constructorCall.resolve(scope);
				return null;
			}
			public StringBuffer printExpression(int indent, StringBuffer output) {
				return output;
			}
		});
	}
	this.assistNode = constructorCall;
	this.lastCheckPoint = constructorCall.sourceEnd + 1;
	this.isOrphanCompletionNode = true;
}
 

protected void consumeMethodInvocationPrimary() {
	//optimize the push/pop
	//MethodInvocation ::= Primary '.' 'Identifier' '(' ArgumentListopt ')'

	char[] selector = this.identifierStack[this.identifierPtr];
	int accessMode;
	if(selector == assistIdentifier()) {
		if(CharOperation.equals(selector, SUPER)) {
			accessMode = ExplicitConstructorCall.Super;
		} else if(CharOperation.equals(selector, THIS)) {
			accessMode = ExplicitConstructorCall.This;
		} else {
			super.consumeMethodInvocationPrimary();
			return;
		}
	} else {
		super.consumeMethodInvocationPrimary();
		return;
	}

	final ExplicitConstructorCall constructorCall = new SelectionOnExplicitConstructorCall(accessMode);
	constructorCall.sourceEnd = this.rParenPos;
	int length;
	if ((length = this.expressionLengthStack[this.expressionLengthPtr--]) != 0) {
		this.expressionPtr -= length;
		System.arraycopy(this.expressionStack, this.expressionPtr + 1, constructorCall.arguments = new Expression[length], 0, length);
	}
	constructorCall.qualification = this.expressionStack[this.expressionPtr--];
	constructorCall.sourceStart = constructorCall.qualification.sourceStart;

	if (!this.diet){
		pushOnAstStack(constructorCall);
		this.restartRecovery	= true;	// force to restart in recovery mode
		this.lastIgnoredToken = -1;
	} else {
		pushOnExpressionStack(new Expression(){
			public TypeBinding resolveType(BlockScope scope) {
				constructorCall.resolve(scope);
				return null;
			}
			public StringBuffer printExpression(int indent, StringBuffer output) {
				return output;
			}
		});
	}

	this.assistNode = constructorCall;
	this.lastCheckPoint = constructorCall.sourceEnd + 1;
	this.isOrphanCompletionNode = true;
}
 

/**
 * Parse the block statements inside the given constructor declaration and try to complete at the
 * cursor location.
 */
public void parseBlockStatements(ConstructorDeclaration cd, CompilationUnitDeclaration unit) {
	//only parse the method body of cd
	//fill out its statements

	//convert bugs into parse error

	initialize();
	// set the lastModifiers to reflect the modifiers of the constructor whose
	// block statements are being parsed
	// see https://bugs.eclipse.org/bugs/show_bug.cgi?id=202634
	this.lastModifiers = cd.modifiers;
	this.lastModifiersStart = cd.modifiersSourceStart;
	// simulate goForConstructorBody except that we don't want to balance brackets because they are not going to be balanced
	goForBlockStatementsopt();

	this.referenceContext = cd;
	this.compilationUnit = unit;

	this.scanner.resetTo(cd.bodyStart, bodyEnd(cd));
	consumeNestedMethod();
	try {
		parse();
	} catch (AbortCompilation ex) {
		this.lastAct = ERROR_ACTION;
	}

	if (this.lastAct == ERROR_ACTION) {
		cd.bits |= ASTNode.HasSyntaxErrors;
		return;
	}

	// attach the statements as we might be searching for a reference to a local type
	cd.explicitDeclarations = this.realBlockStack[this.realBlockPtr--];
	int length;
	if ((length = this.astLengthStack[this.astLengthPtr--]) != 0) {
		this.astPtr -= length;
		if (this.astStack[this.astPtr + 1] instanceof ExplicitConstructorCall)
			//avoid a isSomeThing that would only be used here BUT what is faster between two alternatives ?
			{
			System.arraycopy(
				this.astStack,
				this.astPtr + 2,
				cd.statements = new Statement[length - 1],
				0,
				length - 1);
			cd.constructorCall = (ExplicitConstructorCall) this.astStack[this.astPtr + 1];
		} else { //need to add explicitly the super();
			System.arraycopy(
				this.astStack,
				this.astPtr + 1,
				cd.statements = new Statement[length],
				0,
				length);
			cd.constructorCall = SuperReference.implicitSuperConstructorCall();
		}
	} else {
		cd.constructorCall = SuperReference.implicitSuperConstructorCall();
		if (!containsComment(cd.bodyStart, cd.bodyEnd)) {
			cd.bits |= ASTNode.UndocumentedEmptyBlock;
		}
	}

	if (cd.constructorCall.sourceEnd == 0) {
		cd.constructorCall.sourceEnd = cd.sourceEnd;
		cd.constructorCall.sourceStart = cd.sourceStart;
	}
}