public IValue buildCollection(Type type, List<Record> records, IEvaluatorContext ctx) {
IWriter writer;
while (type.isAliased()) {
type = type.getAliased();
}
if (type.isList()) {
writer = values.listWriter(type.getElementType());
} else if (type.isRelation()) {
writer = values.relationWriter(type.getElementType());
} else {
throw RuntimeExceptionFactory.illegalTypeArgument(
"Invalid result type for CSV reading: " + type, ctx.getCurrentAST(), ctx.getStackTrace());
}
// reverse traversal so that the order in case of ListWriter is correct
// (IWriter only supports inserts at the front).
Type eltType = type.getElementType();
for (int i = records.size() - 1; i >= 0; i--) {
Record record = records.get(i);
checkRecord(eltType, record, ctx);
writer.insert(record.getTuple(eltType));
}
return writer.done();
}
public void generateTypedInterfaceInternal(
IString tag, ISourceLocation uriLoc, IEvaluatorContext ctx) {
IResource handler = Resource.getResourceHandler(uriLoc);
String tagStr = tag.getValue();
Type t = handler.getResourceType(ctx, uriLoc);
PrintWriter currentOutStream = ctx.getStdOut();
// Declare an alias to the type of the resource
TypeStore ts = ctx.getCurrentEnvt().getStore();
Type alias2t = TypeFactory.getInstance().aliasType(ts, tagStr + "Type", t);
currentOutStream.println(
"Generated type alias " + alias2t.toString() + ": " + alias2t.getAliased().toString());
currentOutStream.flush();
// Declare a function that just uses the given URI. This way, if we provide
// the complete URI up front, we don't need to keep providing it later.
StringBuilder sb = new StringBuilder();
sb.append("public ").append(tagStr).append("Type ").append(tagStr).append("() { ");
sb.append(" return getTypedResource(")
.append(uriLoc.toString())
.append(",#")
.append(tagStr)
.append("Type); }");
IConstructor declTree =
ctx.getEvaluator()
.parseCommand(
ctx.getEvaluator().getMonitor(),
sb.toString(),
ctx.getCurrentAST().getLocation().getURI());
Command cmd = ctx.getEvaluator().getBuilder().buildCommand(declTree);
Environment env = ctx.getCurrentEnvt();
ctx.setCurrentEnvt(env.getRoot());
Result<IValue> fun0 = ctx.getEvaluator().eval(ctx.getEvaluator().getMonitor(), cmd);
ctx.unwind(env);
currentOutStream.println("Generated function " + fun0.toString());
currentOutStream.flush();
}
@Override
public Class<?> visitAlias(org.eclipse.imp.pdb.facts.type.Type type) {
return type.getAliased().accept(this);
}