@Override
public RubyNode visitArgumentNode(org.jruby.ast.ArgumentNode node) {
final SourceSection sourceSection = translate(node.getPosition());
final RubyNode readNode;
if (useArray()) {
readNode = readArgument(sourceSection, index);
} else {
if (state == State.PRE) {
readNode = readArgument(sourceSection, index);
} else if (state == State.POST) {
readNode =
readArgument(
sourceSection,
(argsNode.getPreCount() + argsNode.getOptionalArgsCount() + argsNode.getPostCount())
- index
- 1);
} else {
throw new IllegalStateException();
}
}
final FrameSlot slot =
methodBodyTranslator.getEnvironment().getFrameDescriptor().findFrameSlot(node.getName());
return WriteLocalVariableNodeFactory.create(context, sourceSection, slot, readNode);
}
private RubyNode translateLocalAssignment(
ISourcePosition sourcePosition, String name, org.jruby.ast.Node valueNode) {
final SourceSection sourceSection = translate(sourcePosition);
final RubyNode readNode;
if (valueNode instanceof org.jruby.ast.NilImplicitNode) {
// Multiple assignment
if (useArray()) {
readNode =
ArrayIndexNodeFactory.create(context, sourceSection, index, loadArray(sourceSection));
} else {
readNode = readArgument(sourceSection, index);
}
} else {
// Optional argument
final RubyNode defaultValue = valueNode.accept(this);
readNode =
new ReadOptionalArgumentNode(
context, sourceSection, index, index + argsNode.getPostCount() + 1, defaultValue);
}
final FrameSlot slot =
methodBodyTranslator.getEnvironment().getFrameDescriptor().findFrameSlot(name);
return WriteLocalVariableNodeFactory.create(context, sourceSection, slot, readNode);
}
@Override
public RubyNode visitRestArgNode(org.jruby.ast.RestArgNode node) {
final SourceSection sourceSection = translate(node.getPosition());
final RubyNode readNode;
if (useArray()) {
readNode =
ArrayGetTailNodeFactory.create(
context, sourceSection, argsNode.getPreCount(), loadArray(sourceSection));
} else {
readNode = new ReadRestArgumentNode(context, sourceSection, argsNode.getPreCount());
}
final FrameSlot slot =
methodBodyTranslator.getEnvironment().getFrameDescriptor().findFrameSlot(node.getName());
return WriteLocalVariableNodeFactory.create(context, sourceSection, slot, readNode);
}
private RubyNode readArgument(SourceSection sourceSection, int index) {
if (useArray()) {
return ArrayIndexNodeFactory.create(context, sourceSection, index, loadArray(sourceSection));
} else {
if (state == State.PRE) {
return new ReadPreArgumentNode(
context,
sourceSection,
index,
isBlock ? MissingArgumentBehaviour.NIL : MissingArgumentBehaviour.RUNTIME_ERROR);
} else if (state == State.POST) {
return new ReadPostArgumentNode(
context,
sourceSection,
(argsNode.getPreCount() + argsNode.getOptionalArgsCount() + argsNode.getPostCount())
- index
- 1);
} else {
throw new IllegalStateException();
}
}
}
@Override
public RubyNode visitArgsNode(org.jruby.ast.ArgsNode node) {
argsNode = node;
final SourceSection sourceSection = translate(node.getPosition());
final List<RubyNode> sequence = new ArrayList<>();
int localIndex = 0;
if (node.getPre() != null) {
state = State.PRE;
for (org.jruby.ast.Node arg : node.getPre().childNodes()) {
sequence.add(arg.accept(this));
index = ++localIndex;
}
}
if (node.getOptArgs() != null) {
// (BlockNode 0, (OptArgNode:a 0, (LocalAsgnNode:a 0, (FixnumNode 0))), ...)
state = State.OPT;
for (org.jruby.ast.Node arg : node.getOptArgs().childNodes()) {
sequence.add(arg.accept(this));
index = ++localIndex;
}
}
if (node.getPost() != null) {
state = State.POST;
for (org.jruby.ast.Node arg : node.getPost().childNodes()) {
sequence.add(arg.accept(this));
index = ++localIndex;
}
}
if (node.getRestArgNode() != null) {
methodBodyTranslator.getEnvironment().hasRestParameter = true;
sequence.add(node.getRestArgNode().accept(this));
}
if (node.getBlock() != null) {
sequence.add(node.getBlock().accept(this));
}
return SequenceNode.sequence(context, sourceSection, sequence);
}