SwitchCases.ceylon
import ceylon.ast.core {
ElseClause,
Node,
SwitchCases
}
import com.redhat.ceylon.compiler.typechecker.tree {
JNode=Node,
Tree {
JSwitchCaseList=SwitchCaseList
}
}
import ceylon.interop.java {
CeylonIterable
}
"Converts a RedHat AST [[SwitchCaseList|JSwitchCaseList]] to a `ceylon.ast` [[SwitchCases]]."
shared SwitchCases switchCasesToCeylon(JSwitchCaseList switchCases, Anything(JNode,Node) update = noop) {
assert (nonempty caseClauses = CeylonIterable(switchCases.caseClauses).collect(propagateUpdate(caseClauseToCeylon, update)));
ElseClause? elseClause;
if (exists jElseClause = switchCases.elseClause) {
elseClause = elseClauseToCeylon(jElseClause, update);
} else {
elseClause = null;
}
value result = SwitchCases(caseClauses, elseClause);
update(switchCases, result);
return result;
}
"Compiles the given [[code]] for Switch Cases
into [[SwitchCases]] using the Ceylon compiler
(more specifically, the rule for `cases`)."
shared SwitchCases? compileSwitchCases(String code, Anything(JNode,Node) update = noop) {
if (exists jCases = createParser(code).cases()) {
return switchCasesToCeylon(jCases, update);
} else {
return null;
}
}