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ferret/pkg/runtime/expressions/clauses/clause.go
2018-09-18 16:42:38 -04:00

34 lines
737 B
Go

package clauses
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/collections"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
)
type baseClause struct {
src core.SourceMap
dataSource collections.IterableExpression
}
func (clause *baseClause) Iterate(ctx context.Context, scope *core.Scope) (collections.Iterator, error) {
src, err := clause.dataSource.Iterate(ctx, scope)
if err != nil {
return nil, err
}
return src, nil
}
func (clause *baseClause) Exec(ctx context.Context, scope *core.Scope) (core.Value, error) {
iterator, err := clause.Iterate(ctx, scope)
if err != nil {
return values.None, err
}
return collections.ToArray(iterator)
}