private void addPositionMetadata(Context cx, DefinitionNode def) {
MetaDataNode mn = cx.getNodeFactory().metaData(null, -1);
mn.id = "__go_to_definition_help";
mn.values = new Value[2];
mn.values[0] = new KeyValuePair("file", cx.getErrorOrigin());
mn.values[1] = new KeyValuePair("pos", String.valueOf(def.pos()));
def.addMetaDataNode(mn);
}
public Value evaluate(Context cx, MetaDataNode node) {
current = node;
if (node.data == null || node.data.elementlist == null) {
} else if (node.data.elementlist.size() > 1) {
cx.error(node.pos() - 1, kError_MetaDataAttributesHasMoreThanOneElement);
} else if (node.data.elementlist.items.get(0) instanceof MemberExpressionNode) {
MemberExpressionNode men = ((MemberExpressionNode) node.data.elementlist.items.get(0));
SelectorNode selector = (men != null) ? men.selector : null;
if (selector != null) {
if (selector instanceof CallExpressionNode) {
CallExpressionNode call = (CallExpressionNode) selector;
if (call.expr != null) {
KeylessValue val = (KeylessValue) call.expr.evaluate(cx, this);
// node.values.add(val);
current.id = val.obj;
}
if (call.args != null) {
int length = call.args.size();
node.values = new Value[length];
for (int i = 0; i < length; i++) {
Node n = call.args.items.get(i);
Value value = n.evaluate(cx, this);
if (value == null) {
cx.error(n.pos() - 1, kError_InvalidMetaData);
}
node.values[i] = value;
}
}
}
if (selector instanceof GetExpressionNode) {
// This is a metadatadata node for something like [Foo], with no arguments, so don't fill
// in
// the values, otherwise this case is indistinquishable from [Foo("Foo")] which will be
// handled
// by the CallExpressionNode block above.
GetExpressionNode getexpr = (GetExpressionNode) selector;
if (getexpr != null && getexpr.expr != null) {
KeylessValue value = (KeylessValue) getexpr.expr.evaluate(cx, this);
current.id = value.obj;
}
}
}
} else {
if (node.data.elementlist.items.get(0) != null) {
cx.error(node.data.elementlist.items.get(0).pos() - 1, kError_InvalidMetaData);
} else {
cx.error(node.pos() - 1, kError_InvalidMetaData);
}
}
return null;
}
public Value evaluate(Context cx, ClassDefinitionNode node) {
if (doing_class) return null;
doing_class =
true; // inner classes are included multiple times in node->staticinits. Don't double
// evaluate them.
cx.pushStaticClassScopes(node);
if (node.statements != null) node.statements.evaluate(cx, this);
// now do the nested classes
doing_class = false;
{
for (ClassDefinitionNode it : node.clsdefs) {
it.evaluate(cx, this);
}
}
cx.pushScope(node.iframe);
{
for (Node init : node.instanceinits) {
if (cx.statics.es4_nullability && !init.isDefinition()) node.iframe.setInitOnly(true);
init.evaluate(cx, this);
if (cx.statics.es4_nullability && !init.isDefinition()) node.iframe.setInitOnly(false);
}
}
cx.popScope(); // iframe
cx.popStaticClassScopes(node);
ClassDefinitionNode cdn = node;
ReferenceValue ref = cdn.ref;
Slot classSlot = null;
if (ref != null) classSlot = ref.getSlot(cx);
if (debugging) {
addPositionMetadata(cx, cdn);
}
if (classSlot != null && classSlot.getMetadata() == null && cdn.metaData != null)
for (Node meta_node : cdn.metaData.items) {
if (meta_node instanceof MetaDataNode) {
addMetadataToSlot(cx, classSlot, (MetaDataNode) meta_node);
int i = isVersionMetadata(cx, (MetaDataNode) meta_node);
if (i > -1) cdn.version = i;
}
}
return null;
}
public Value evaluate(Context cx, VariableBindingNode node) {
if (node.variable != null) node.variable.evaluate(cx, this);
if (cx.statics.es4_nullability && cx.scope().builder instanceof InstanceBuilder) {
cx.scope().setInitOnly(true);
}
if (node.initializer != null) node.initializer.evaluate(cx, this);
if (cx.statics.es4_nullability && cx.scope().builder instanceof InstanceBuilder) {
cx.scope().setInitOnly(false);
}
return null;
};
public Value evaluate(Context cx, IncludeDirectiveNode node) {
if (!node.in_this_include) {
node.in_this_include = true;
node.prev_cx = new Context(cx.statics);
node.prev_cx.switchToContext(cx);
// DANGER: it may not be obvious that we are setting the
// the context of the outer statementlistnode here
cx.switchToContext(node.cx);
} else {
node.in_this_include = false;
cx.switchToContext(node.prev_cx); // restore prevailing context
node.prev_cx = null;
}
return null;
};
/** add style into unit-wide list */
private void registerStyle(Context context, MetaDataNode metaDataNode, String name, MetaData md) {
try {
unit.styles.addStyle(name, md, unit.getSource());
} catch (StyleConflictException e) {
context.localizedWarning2(metaDataNode.pos(), e);
if (Trace.error) e.printStackTrace();
}
}
public Value evaluate(Context context, MetaDataNode node) {
if ("Style".equals(node.getId())) {
if (NodeMagic.isClassDefinition(node)) {
processStyle(context, node);
} else {
context.localizedError2(node.pos(), new StyleMustAnnotateAClass());
}
}
return null;
}
private void error(int kind, String arg) {
StringBuilder out = new StringBuilder();
String origin = this.input.origin;
int errPos = input.positionOfMark(); // note use of source adjusted position
int ln = input.getLnNum(errPos);
int col = input.getColPos(errPos);
String msg =
(ContextStatics.useVerboseErrors ? "[Compiler] Error #" + kind + ": " : "")
+ ctx.errorString(kind);
if (debug) {
msg = "[Scanner] " + msg;
}
int nextLoc = Context.replaceStringArg(out, msg, 0, arg);
if (nextLoc != -1) // append msg remainder after replacement point, if any
out.append(msg.substring(nextLoc, msg.length()));
ctx.localizedError(origin, ln, col, out.toString(), input.getLineText(errPos), kind);
skiperror(kind);
}
private void processStyle(Context context, MetaDataNode metaDataNode) {
MetaData metaData = new MetaData(metaDataNode);
String styleName = metaData.getValue("name");
String typeName = metaData.getValue("type");
if (styleName == null) {
// preilly: we should report this earlier in the process.
context.localizedError2(metaDataNode.pos(), new StyleHasMissingName());
}
if (typeName != null) {
unit.expressions.add(NameFormatter.toMultiName(typeName));
}
registerStyle(context, metaDataNode, styleName, metaData);
}
private int isVersionMetadata(Context cx, MetaDataNode metadata) {
if (cx.checkVersion()) {
if ("Version".equals(metadata.id) && metadata.values != null && metadata.values.length == 1) {
KeylessValue k =
metadata.values[0] instanceof KeylessValue ? (KeylessValue) metadata.values[0] : null;
if (k != null) {
int i = -1;
try {
i = Integer.valueOf(k.obj);
} catch (NumberFormatException nfe) {
// not an integer
}
return i;
}
}
}
return -1;
}
public Value evaluate(Context cx, Node node) {
cx.internalError("error: undefined meta data method");
return null;
}
public Node initializerStatement(Context cx) {
return cx.getNodeFactory().emptyStatement();
}
private void error(String msg) {
ctx.internalError(msg);
error(kError_Lexical_General, msg);
}
/**
* This contructor is used by Flex direct AST generation. It allows Flex to pass in a specialized
* InputBuffer.
*/
public Scanner(Context cx, InputBuffer input) {
init(cx, true);
this.input = input;
cx.input = input; // so now we get to look around to find out who does this...
}
public Scanner(Context cx, String in, String origin, boolean save_comments) {
init(cx, save_comments);
this.input = new InputBuffer(in, origin);
cx.input = this.input; // FIXME: how nicely external state altering.
}
public Scanner(
Context cx, InputStream in, String encoding, String origin, boolean save_comments) {
init(cx, save_comments);
this.input = new InputBuffer(in, encoding, origin);
cx.input = this.input;
}
