CompareOperation.ceylon
import ceylon.ast.core {
CompareOperation,
ExistsNonemptyExpression,
Node
}
import com.redhat.ceylon.compiler.typechecker.tree {
JNode=Node,
Tree {
JCompareOp=CompareOp
}
}
"Converts a RedHat AST [[CompareOp|JCompareOp]] to a `ceylon.ast` [[CompareOperation]]."
shared CompareOperation compareOperationToCeylon(JCompareOp compareOperation, Anything(JNode,Node) update = noop) {
"Check precedence"
assert (is ExistsNonemptyExpression left = expressionToCeylon(compareOperation.leftTerm, update),
is ExistsNonemptyExpression right = expressionToCeylon(compareOperation.rightTerm, update));
value result = CompareOperation(left, right);
update(compareOperation, result);
return result;
}
"Compiles the given [[code]] for a Compare Operation
into a [[CompareOperation]] using the Ceylon compiler
(more specifically, the rule for a `comparisonExpression`)."
shared CompareOperation? compileCompareOperation(String code, Anything(JNode,Node) update = noop) {
if (is JCompareOp jComparisonExpression = createParser(code).comparisonExpression()) {
return compareOperationToCeylon(jComparisonExpression, update);
} else {
return null;
}
}