WithinOperation.ceylon
import ceylon.ast.core {
WithinOperation,
ExistsNonemptyExpression
}
import com.redhat.ceylon.compiler.typechecker.tree {
Tree {
JWithinOp=WithinOp
}
}
"Converts a RedHat AST [[WithinOp|JWithinOp]] to a `ceylon.ast` [[WithinOperation]]."
shared WithinOperation withinOperationToCeylon(JWithinOp withinOperation) {
"Check precedence"
assert (is ExistsNonemptyExpression operand = expressionToCeylon(withinOperation.term));
return WithinOperation(operand, boundToCeylon(withinOperation.lowerBound), boundToCeylon(withinOperation.upperBound));
}
"Compiles the given [[code]] for a Within Operation
into a [[WithinOperation]] using the Ceylon compiler
(more specifically, the rule for a `comparisonExpression`)."
shared WithinOperation? compileWithinOperation(String code) {
if (is JWithinOp jComparisonExpression = createParser(code).comparisonExpression()) {
return withinOperationToCeylon(jComparisonExpression);
} else {
return null;
}
}