// buildExpressions builds expressions for each of the nodes found in the iterator.
func (db *domBuilder) buildExpressions(iterator compilergraph.NodeIterator, option buildExprOption) []codedom.Expression {
var expressions = make([]codedom.Expression, 0)
for iterator.Next() {
expr := db.buildExpression(iterator.Node())
// If requested, check to see if the expression was used under a special exception where
// a nominal type is used in place of its root data type. If so, we need to unwrap the
// expression value.
if option == buildExprCheckNominalShortcutting &&
db.scopegraph.HasSecondaryLabel(iterator.Node(), proto.ScopeLabel_NOMINALLY_SHORTCUT_EXPR) {
expr = codedom.NominalUnwrapping(expr, db.scopegraph.TypeGraph().AnyTypeReference(), iterator.Node())
}
expressions = append(expressions, expr)
}
return expressions
}
// salForIterator returns a SourceAndLocation for the given iterator. Note that
// the iterator *must* contain the NodePredicateSource and NodePredicateStartRune predicates.
func salForIterator(iterator compilergraph.NodeIterator) compilercommon.SourceAndLocation {
return compilercommon.NewSourceAndLocation(
compilercommon.InputSource(iterator.GetPredicate(parser.NodePredicateSource).String()),
iterator.GetPredicate(parser.NodePredicateStartRune).Int())
}