public List<TreeContext> pathUpTo(Class<ASTNode> node, ASTNodePredicate predicate) {
List<TreeContext> path = new LinkedList<TreeContext>();
TreeContext current = lastContext;
boolean found = false;
while (current != null && !found) {
path.add(current);
ASTNode currentNode = current.node;
if (node == null) {
if (predicate.matches(currentNode)) {
found = true;
}
} else {
if (predicate == null) {
if (currentNode == null || node == currentNode.getClass()) {
found = true;
}
} else {
found =
currentNode != null
&& node == currentNode.getClass()
&& predicate.matches(currentNode);
}
}
current = current.parent;
}
if (found) {
return path;
}
return Collections.emptyList();
}
public void addCompileWarning(String msg, ASTNode node) {
Token token =
new Token(Types.UNKNOWN, node.getText(), node.getLineNumber(), node.getColumnNumber());
sourceUnit
.getErrorCollector()
.addWarning(WarningMessage.POSSIBLE_ERRORS, msg, token, sourceUnit);
}
/**
* Generates a fatal compilation error
*
* @param sourceUnit the SourceUnit
* @param astNode the ASTNode which caused the error
* @param message The error message
* @param fatal indicates if this is a fatal error
*/
public static void error(
final SourceUnit sourceUnit,
final ASTNode astNode,
final String message,
final boolean fatal) {
final SyntaxException syntaxException =
new SyntaxException(message, astNode.getLineNumber(), astNode.getColumnNumber());
final SyntaxErrorMessage syntaxErrorMessage =
new SyntaxErrorMessage(syntaxException, sourceUnit);
sourceUnit.getErrorCollector().addError(syntaxErrorMessage, fatal);
}
protected void addError(String msg, ASTNode expr) {
this.source
.getErrorCollector()
.addErrorAndContinue(
new SyntaxErrorMessage(
new SyntaxException(
msg + '\n',
expr.getLineNumber(),
expr.getColumnNumber(),
expr.getLastLineNumber(),
expr.getLastColumnNumber()),
this.source));
}
private String getRefDescriptor(ASTNode ref) {
if (ref instanceof FieldNode) {
FieldNode f = (FieldNode) ref;
return "the field " + f.getName() + " ";
} else if (ref instanceof PropertyNode) {
PropertyNode p = (PropertyNode) ref;
return "the property " + p.getName() + " ";
} else if (ref instanceof ConstructorNode) {
return "the constructor " + ref.getText() + " ";
} else if (ref instanceof MethodNode) {
return "the method " + ref.getText() + " ";
} else if (ref instanceof ClassNode) {
return "the super class " + ref + " ";
}
return "<unknown with class " + ref.getClass() + "> ";
}
private void declare(Variable var, ASTNode expr) {
String scopeType = "scope";
String variableType = "variable";
if (expr.getClass() == FieldNode.class) {
scopeType = "class";
variableType = "field";
} else if (expr.getClass() == PropertyNode.class) {
scopeType = "class";
variableType = "property";
}
StringBuilder msg = new StringBuilder();
msg.append("The current ").append(scopeType);
msg.append(" already contains a ").append(variableType);
msg.append(" of the name ").append(var.getName());
if (currentScope.getDeclaredVariable(var.getName()) != null) {
addError(msg.toString(), expr);
return;
}
for (VariableScope scope = currentScope.getParent(); scope != null; scope = scope.getParent()) {
// if we are in a class and no variable is declared until
// now, then we can break the loop, because we are allowed
// to declare a variable of the same name as a class member
if (scope.getClassScope() != null) break;
if (scope.getDeclaredVariable(var.getName()) != null) {
// variable already declared
addError(msg.toString(), expr);
break;
}
}
// declare the variable even if there was an error to allow more checks
currentScope.putDeclaredVariable(var);
}
/**
* @param inferredElement
* @return
*/
private String createLabel(ASTNode inferredElement) {
if (inferredElement instanceof PropertyNode) {
inferredElement = ((PropertyNode) inferredElement).getField();
}
String label;
if (inferredElement instanceof ClassNode) {
label = createClassLabel((ClassNode) inferredElement);
} else if (inferredElement instanceof MethodNode) {
label = createMethodLabel((MethodNode) inferredElement);
} else if (inferredElement instanceof FieldNode) {
label = createFieldLabel((FieldNode) inferredElement);
} else {
label = inferredElement.getText();
}
return "<b>" + label + "</b><br>\n";
}
@Override
public boolean matches(final ASTNode node) {
return astNodeClass == node.getClass();
}
public void call(SourceUnit source, GeneratorContext context, ClassNode classNode)
throws CompilationFailedException {
optimizer.visitClass(
classNode, source); // GROOVY-4272: repositioned it here from staticImport
if (!classNode.isSynthetic()) {
GenericsVisitor genericsVisitor = new GenericsVisitor(source);
genericsVisitor.visitClass(classNode);
}
//
// Run the Verifier on the outer class
//
try {
verifier.visitClass(classNode);
} catch (GroovyRuntimeException rpe) {
ASTNode node = rpe.getNode();
getErrorCollector()
.addError(
new SyntaxException(
rpe.getMessage(),
node.getLineNumber(),
node.getColumnNumber(),
node.getLastLineNumber(),
node.getLastColumnNumber()),
source);
}
LabelVerifier lv = new LabelVerifier(source);
lv.visitClass(classNode);
ClassCompletionVerifier completionVerifier = new ClassCompletionVerifier(source);
completionVerifier.visitClass(classNode);
ExtendedVerifier xverifier = new ExtendedVerifier(source);
xverifier.visitClass(classNode);
// because the class may be generated even if a error was found
// and that class may have an invalid format we fail here if needed
getErrorCollector().failIfErrors();
//
// Prep the generator machinery
//
ClassVisitor visitor = createClassVisitor();
String sourceName =
(source == null ? classNode.getModule().getDescription() : source.getName());
// only show the file name and its extension like javac does in its stacktraces rather
// than the full path
// also takes care of both \ and / depending on the host compiling environment
if (sourceName != null)
sourceName =
sourceName.substring(
Math.max(sourceName.lastIndexOf('\\'), sourceName.lastIndexOf('/')) + 1);
AsmClassGenerator generator = new AsmClassGenerator(source, context, visitor, sourceName);
//
// Run the generation and create the class (if required)
//
// GRECLIPSE: if there are errors, don't generate code.
// code gen can fail unexpectedly if there was an earlier error.
if (!source.getErrorCollector().hasErrors()) {
// end
generator.visitClass(classNode);
byte[] bytes = ((ClassWriter) visitor).toByteArray();
/// GRECLIPSE: start: added classNode, sourceUnit
/*old{
generatedClasses.add(new GroovyClass(classNode.getName(), bytes));
}*/
// newcode
generatedClasses.add(new GroovyClass(classNode.getName(), bytes, classNode, source));
// end
//
// Handle any callback that's been set
//
if (CompilationUnit.this.classgenCallback != null) {
classgenCallback.call(visitor, classNode);
}
//
// Recurse for inner classes
//
LinkedList innerClasses = generator.getInnerClasses();
while (!innerClasses.isEmpty()) {
classgen.call(source, context, (ClassNode) innerClasses.removeFirst());
}
// GRECLIPSE: if there are errors, don't generate code
}
// end
}
protected ClassNode createClosureClass(ClosureExpression expression, int mods) {
ClassNode classNode = controller.getClassNode();
ClassNode outerClass = controller.getOutermostClass();
MethodNode methodNode = controller.getMethodNode();
String name =
classNode.getName()
+ "$"
+ controller
.getContext()
.getNextClosureInnerName(
outerClass, classNode, methodNode); // add a more informative name
boolean staticMethodOrInStaticClass = controller.isStaticMethod() || classNode.isStaticClass();
Parameter[] parameters = expression.getParameters();
if (parameters == null) {
parameters = Parameter.EMPTY_ARRAY;
} else if (parameters.length == 0) {
// let's create a default 'it' parameter
Parameter it = new Parameter(ClassHelper.OBJECT_TYPE, "it", ConstantExpression.NULL);
parameters = new Parameter[] {it};
Variable ref = expression.getVariableScope().getDeclaredVariable("it");
if (ref != null) it.setClosureSharedVariable(ref.isClosureSharedVariable());
}
Parameter[] localVariableParams = getClosureSharedVariables(expression);
removeInitialValues(localVariableParams);
InnerClassNode answer =
new InnerClassNode(classNode, name, mods, ClassHelper.CLOSURE_TYPE.getPlainNodeReference());
answer.setEnclosingMethod(controller.getMethodNode());
answer.setSynthetic(true);
answer.setUsingGenerics(outerClass.isUsingGenerics());
answer.setSourcePosition(expression);
if (staticMethodOrInStaticClass) {
answer.setStaticClass(true);
}
if (controller.isInScriptBody()) {
answer.setScriptBody(true);
}
MethodNode method =
answer.addMethod(
"doCall",
ACC_PUBLIC,
ClassHelper.OBJECT_TYPE,
parameters,
ClassNode.EMPTY_ARRAY,
expression.getCode());
method.setSourcePosition(expression);
VariableScope varScope = expression.getVariableScope();
if (varScope == null) {
throw new RuntimeException(
"Must have a VariableScope by now! for expression: " + expression + " class: " + name);
} else {
method.setVariableScope(varScope.copy());
}
if (parameters.length > 1
|| (parameters.length == 1
&& parameters[0].getType() != null
&& parameters[0].getType() != ClassHelper.OBJECT_TYPE
&& !ClassHelper.OBJECT_TYPE.equals(parameters[0].getType().getComponentType()))) {
// let's add a typesafe call method
MethodNode call =
answer.addMethod(
"call",
ACC_PUBLIC,
ClassHelper.OBJECT_TYPE,
parameters,
ClassNode.EMPTY_ARRAY,
new ReturnStatement(
new MethodCallExpression(
VariableExpression.THIS_EXPRESSION,
"doCall",
new ArgumentListExpression(parameters))));
call.setSourcePosition(expression);
}
// let's make the constructor
BlockStatement block = new BlockStatement();
// this block does not get a source position, because we don't
// want this synthetic constructor to show up in corbertura reports
VariableExpression outer = new VariableExpression("_outerInstance");
outer.setSourcePosition(expression);
block.getVariableScope().putReferencedLocalVariable(outer);
VariableExpression thisObject = new VariableExpression("_thisObject");
thisObject.setSourcePosition(expression);
block.getVariableScope().putReferencedLocalVariable(thisObject);
TupleExpression conArgs = new TupleExpression(outer, thisObject);
block.addStatement(
new ExpressionStatement(new ConstructorCallExpression(ClassNode.SUPER, conArgs)));
// let's assign all the parameter fields from the outer context
for (Parameter param : localVariableParams) {
String paramName = param.getName();
ClassNode type = param.getType();
if (true) {
VariableExpression initialValue = new VariableExpression(paramName);
initialValue.setAccessedVariable(param);
initialValue.setUseReferenceDirectly(true);
ClassNode realType = type;
type = ClassHelper.makeReference();
param.setType(ClassHelper.makeReference());
FieldNode paramField =
answer.addField(paramName, ACC_PRIVATE | ACC_SYNTHETIC, type, initialValue);
paramField.setOriginType(ClassHelper.getWrapper(param.getOriginType()));
paramField.setHolder(true);
String methodName = Verifier.capitalize(paramName);
// let's add a getter & setter
Expression fieldExp = new FieldExpression(paramField);
answer.addMethod(
"get" + methodName,
ACC_PUBLIC,
realType.getPlainNodeReference(),
Parameter.EMPTY_ARRAY,
ClassNode.EMPTY_ARRAY,
new ReturnStatement(fieldExp));
}
}
Parameter[] params = new Parameter[2 + localVariableParams.length];
params[0] = new Parameter(ClassHelper.OBJECT_TYPE, "_outerInstance");
params[1] = new Parameter(ClassHelper.OBJECT_TYPE, "_thisObject");
System.arraycopy(localVariableParams, 0, params, 2, localVariableParams.length);
ASTNode sn = answer.addConstructor(ACC_PUBLIC, params, ClassNode.EMPTY_ARRAY, block);
sn.setSourcePosition(expression);
correctAccessedVariable(answer, expression);
return answer;
}
public static void warning(
final SourceUnit sourceUnit, final ASTNode node, final String warningMessage) {
final String sample =
sourceUnit.getSample(node.getLineNumber(), node.getColumnNumber(), new Janitor());
GrailsConsole.getInstance().warning(warningMessage + "\n\n" + sample);
}
private void addCompileError(String msg, ASTNode node) {
SyntaxException se = new SyntaxException(msg, node.getLineNumber(), node.getColumnNumber());
sourceUnit.getErrorCollector().addFatalError(new SyntaxErrorMessage(se, sourceUnit));
}
public NodeKey(ASTNode node) {
pos = node.getStart();
len = node.getLength();
}
