CompareOperation.ceylon
import ceylon.ast.core {
CompareOperation,
ExistsNonemptyExpression
}
import com.redhat.ceylon.compiler.typechecker.tree {
Tree {
JCompareOp=CompareOp
}
}
"Converts a RedHat AST [[CompareOp|JCompareOp]] to a `ceylon.ast` [[CompareOperation]]."
shared CompareOperation compareOperationToCeylon(JCompareOp compareOperation) {
"Check precedence"
assert (is ExistsNonemptyExpression left = expressionToCeylon(compareOperation.leftTerm),
is ExistsNonemptyExpression right = expressionToCeylon(compareOperation.rightTerm));
return CompareOperation(left, right);
}
"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) {
if (is JCompareOp jComparisonExpression = createParser(code).comparisonExpression()) {
return compareOperationToCeylon(jComparisonExpression);
} else {
return null;
}
}