EntryPattern.ceylon
import ceylon.ast.core {
EntryPattern,
Node,
TuplePattern,
VariablePattern
}
import com.redhat.ceylon.compiler.typechecker.tree {
JNode=Node,
Tree {
JKeyValuePattern=KeyValuePattern
}
}
"Converts a RedHat AST [[KeyValuePattern|JKeyValuePattern]] to a `ceylon.ast` [[EntryPattern]]."
shared EntryPattern entryPatternToCeylon(JKeyValuePattern entryPattern, Anything(JNode,Node) update = noop) {
assert (is VariablePattern|TuplePattern key = patternToCeylon(entryPattern.key, update),
is VariablePattern|TuplePattern item = patternToCeylon(entryPattern.\ivalue, update));
value result = EntryPattern(key, item);
update(entryPattern, result);
return result;
}
"Compiles the given [[code]] for an Entry Pattern
into an [[EntryPattern]] using the Ceylon compiler
(more specifically, the rule for an `keyItemPattern`)."
shared EntryPattern? compileEntryPattern(String code, Anything(JNode,Node) update = noop) {
if (exists jEntryPattern = createParser(code).keyItemPattern()) {
return entryPatternToCeylon(jEntryPattern, update);
} else {
return null;
}
}