Java Code Examples for javax.lang.model.element.ElementKind#EXCEPTION_PARAMETER

The following examples show how to use javax.lang.model.element.ElementKind#EXCEPTION_PARAMETER . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: Symbol.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
@DefinedBy(Api.LANGUAGE_MODEL)
public ElementKind getKind() {
    long flags = flags();
    if ((flags & PARAMETER) != 0) {
        if (isExceptionParameter())
            return ElementKind.EXCEPTION_PARAMETER;
        else
            return ElementKind.PARAMETER;
    } else if ((flags & ENUM) != 0) {
        return ElementKind.ENUM_CONSTANT;
    } else if (owner.kind == TYP || owner.kind == ERR) {
        return ElementKind.FIELD;
    } else if (isResourceVariable()) {
        return ElementKind.RESOURCE_VARIABLE;
    } else {
        return ElementKind.LOCAL_VARIABLE;
    }
}
Example 2
Source File: Symbol.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
public Object getConstValue() {
    // TODO: Consider if getConstValue and getConstantValue can be collapsed
    if (data == ElementKind.EXCEPTION_PARAMETER ||
        data == ElementKind.RESOURCE_VARIABLE) {
        return null;
    } else if (data instanceof Callable<?>) {
        // In this case, this is a final variable, with an as
        // yet unevaluated initializer.
        Callable<?> eval = (Callable<?>)data;
        data = null; // to make sure we don't evaluate this twice.
        try {
            data = eval.call();
        } catch (Exception ex) {
            throw new AssertionError(ex);
        }
    }
    return data;
}
Example 3
Source File: UseSpecificCatch.java    From netbeans with Apache License 2.0 6 votes vote down vote up 
/**
 * Determines whether the catch exception parameter is assigned to.
 * 
 * @param ctx HintContext - for CompilationInfo
 * @param variable the inspected variable
 * @param statements statements that should be checked for assignment
 * @return true if 'variable' is assigned to within 'statements'
 */
public static boolean assignsTo(final HintContext ctx, TreePath variable, Iterable<? extends TreePath> statements) {
    final Element tEl = ctx.getInfo().getTrees().getElement(variable);

    if (tEl == null || tEl.getKind() != ElementKind.EXCEPTION_PARAMETER) return true;
    final boolean[] result = new boolean[1];

    for (TreePath tp : statements) {
        new ErrorAwareTreePathScanner<Void, Void>() {
            @Override
            public Void visitAssignment(AssignmentTree node, Void p) {
                if (tEl.equals(ctx.getInfo().getTrees().getElement(new TreePath(getCurrentPath(), node.getVariable())))) {
                    result[0] = true;
                }
                return super.visitAssignment(node, p);
            }
        }.scan(tp, null);
    }

    return result[0];
}
Example 4
Source File: NPECheck.java    From netbeans with Apache License 2.0 6 votes vote down vote up 
@Override
public State visitVariable(VariableTree node, Void p) {
    Element e = info.getTrees().getElement(getCurrentPath());
    Map<VariableElement, State> orig = new HashMap<>(variable2State);
    State r = scan(node.getInitializer(), p);
    
    mergeHypotheticalVariable2State(orig);
    
    if (e != null) {
        if (e.getKind() == ElementKind.EXCEPTION_PARAMETER) {
            r = NOT_NULL;
        }
        variable2State.put((VariableElement) e, r);
        TreePath pp = getCurrentPath().getParentPath();
        if (pp != null) {
            addScopedVariable(pp.getLeaf(), (VariableElement)e);
        }
    }
    
    return r;
}
Example 5
Source File: AssignmentIssues.java    From netbeans with Apache License 2.0 6 votes vote down vote up 
@Hint(displayName = "#DN_org.netbeans.modules.java.hints.AssignmentIssues.assignmentToCatchBlockParameter", description = "#DESC_org.netbeans.modules.java.hints.AssignmentIssues.assignmentToCatchBlockParameter", category = "assignment_issues", enabled = false, suppressWarnings = "AssignmentToCatchBlockParameter", options=Options.QUERY) //NOI18N
@TriggerTreeKind(Kind.CATCH)
public static List<ErrorDescription> assignmentToCatchBlockParameter(HintContext context) {
    final Trees trees = context.getInfo().getTrees();
    final TreePath catchPath = context.getPath();
    final Element param = trees.getElement(TreePath.getPath(catchPath, ((CatchTree) catchPath.getLeaf()).getParameter()));
    if (param == null || param.getKind() != ElementKind.EXCEPTION_PARAMETER) {
        return null;
    }
    final TreePath block = TreePath.getPath(catchPath, ((CatchTree) catchPath.getLeaf()).getBlock());
    final List<TreePath> paths = new LinkedList<TreePath>();
    new AssignmentFinder(trees, param).scan(block, paths);
    final List<ErrorDescription> ret = new ArrayList<ErrorDescription>(paths.size());
    for (TreePath path : paths) {
        ret.add(ErrorDescriptionFactory.forTree(context, path, NbBundle.getMessage(AssignmentIssues.class, "MSG_AssignmentToCatchBlockParameter", param.getSimpleName()))); //NOI18N
    }
    return ret;
}
Example 6
Source File: Symbol.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
@DefinedBy(Api.LANGUAGE_MODEL)
public ElementKind getKind() {
    long flags = flags();
    if ((flags & PARAMETER) != 0) {
        if (isExceptionParameter())
            return ElementKind.EXCEPTION_PARAMETER;
        else
            return ElementKind.PARAMETER;
    } else if ((flags & ENUM) != 0) {
        return ElementKind.ENUM_CONSTANT;
    } else if (owner.kind == TYP || owner.kind == ERR) {
        return ElementKind.FIELD;
    } else if (isResourceVariable()) {
        return ElementKind.RESOURCE_VARIABLE;
    } else {
        return ElementKind.LOCAL_VARIABLE;
    }
}
Example 7
Source File: Symbol.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
public Object getConstValue() {
    // TODO: Consider if getConstValue and getConstantValue can be collapsed
    if (data == ElementKind.EXCEPTION_PARAMETER ||
        data == ElementKind.RESOURCE_VARIABLE) {
        return null;
    } else if (data instanceof Callable<?>) {
        // In this case, this is a final variable, with an as
        // yet unevaluated initializer.
        Callable<?> eval = (Callable<?>)data;
        data = null; // to make sure we don't evaluate this twice.
        try {
            data = eval.call();
        } catch (Exception ex) {
            throw new AssertionError(ex);
        }
    }
    return data;
}
Example 8
Source File: GoToSupport.java    From netbeans with Apache License 2.0 5 votes vote down vote up 
@Override
public Void visitVariable(VariableElement e, Boolean highlightName) {
    modifier(e.getModifiers());
    
    result.append(getTypeName(info, e.asType(), true));
    
    result.append(' ');
    
    boldStartCheck(highlightName);

    result.append(e.getSimpleName());
    
    boldStopCheck(highlightName);
    
    if (highlightName) {
        if (e.getConstantValue() != null) {
            result.append(" = ");
            result.append(StringEscapeUtils.escapeHtml(e.getConstantValue().toString()));
        }
        
        Element enclosing = e.getEnclosingElement();
        
        if (e.getKind() != ElementKind.PARAMETER && e.getKind() != ElementKind.LOCAL_VARIABLE
                && e.getKind() != ElementKind.RESOURCE_VARIABLE && e.getKind() != ElementKind.EXCEPTION_PARAMETER
                && !TreeShims.BINDING_VARIABLE.equals(e.getKind().name())) {
            result.append(" in ");

            //short typename:
            result.append(getTypeName(info, enclosing.asType(), true));
        }
    }
    
    return null;
}
Example 9
Source File: ELHyperlinkProvider.java    From netbeans with Apache License 2.0 5 votes vote down vote up 
@Override
public Void visitVariable(VariableElement e, Boolean highlightName) {
    modifier(e.getModifiers());

    result.append(getTypeName(info, e.asType(), true));

    result.append(' ');

    boldStartCheck(highlightName);

    result.append(e.getSimpleName());

    boldStopCheck(highlightName);

    if (highlightName) {
        if (e.getConstantValue() != null) {
            result.append(" = ");
            result.append(e.getConstantValue().toString());
        }

        Element enclosing = e.getEnclosingElement();

        if (e.getKind() != ElementKind.PARAMETER && e.getKind() != ElementKind.LOCAL_VARIABLE && e.getKind() != ElementKind.EXCEPTION_PARAMETER) {
            result.append(" in ");

            //short typename:
            result.append(getTypeName(info, enclosing.asType(), true));
        }
    }

    return null;
}
Example 10
Source File: CompilationUnitBuilder.java    From j2cl with Apache License 2.0 5 votes vote down vote up 
private Expression convertIdent(JCIdent identifier) {
  if (isThisExpression(identifier)) {
    return new ThisReference(getCurrentType().getTypeDescriptor());
  }
  if (isSuperExpression(identifier)) {
    return new SuperReference(getCurrentType().getTypeDescriptor());
  }
  Symbol symbol = identifier.sym;
  if (symbol instanceof ClassSymbol) {
    return new JavaScriptConstructorReference(
        environment.createDeclarationForType((ClassSymbol) identifier.sym));
  }
  if (symbol instanceof MethodSymbol) {
    return NullLiteral.get().withComment(identifier.toString());
  }

  VarSymbol varSymbol = (VarSymbol) symbol;
  if (symbol.getKind() == ElementKind.LOCAL_VARIABLE
      || symbol.getKind() == ElementKind.RESOURCE_VARIABLE
      || symbol.getKind() == ElementKind.PARAMETER
      || symbol.getKind() == ElementKind.EXCEPTION_PARAMETER) {
    Variable variable = variableByVariableElement.get(symbol);
    return resolveVariableReference(variable);
  }

  FieldDescriptor fieldDescriptor = environment.createFieldDescriptor(varSymbol, identifier.type);
  Expression qualifier =
      fieldDescriptor.isStatic()
          ? null
          : resolveOuterClassReference(fieldDescriptor.getEnclosingTypeDescriptor(), false);
  return FieldAccess.newBuilder()
      .setQualifier(qualifier)
      .setTargetFieldDescriptor(fieldDescriptor)
      .build();
}
Example 11
Source File: Symbol.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
public boolean isExceptionParameter() {
    return data == ElementKind.EXCEPTION_PARAMETER;
}
Example 12
Source File: Symbol.java    From openjdk-jdk9 with GNU General Public License v2.0 4 votes vote down vote up 
public boolean isExceptionParameter() {
    return data == ElementKind.EXCEPTION_PARAMETER;
}
Example 13
Source File: ElementUtil.java    From j2objc with Apache License 2.0 4 votes vote down vote up 
public static boolean isVariable(Element element) {
  ElementKind kind = element.getKind();
  return kind == ElementKind.FIELD || kind == ElementKind.LOCAL_VARIABLE
      || kind == ElementKind.PARAMETER || kind == ElementKind.EXCEPTION_PARAMETER
      || kind == ElementKind.RESOURCE_VARIABLE || kind == ElementKind.ENUM_CONSTANT;
}