mirror of
https://github.com/MontFerret/ferret.git
synced 2024-12-21 01:21:34 +02:00
31 lines
664 B
Go
31 lines
664 B
Go
package expressions
|
|
|
|
import (
|
|
"context"
|
|
"github.com/MontFerret/ferret/pkg/runtime/core"
|
|
"github.com/MontFerret/ferret/pkg/runtime/values"
|
|
)
|
|
|
|
type ParameterExpression struct {
|
|
src core.SourceMap
|
|
name string
|
|
}
|
|
|
|
func NewParameterExpression(src core.SourceMap, name string) (*ParameterExpression, error) {
|
|
if name == "" {
|
|
return nil, core.Error(core.ErrMissedArgument, "name")
|
|
}
|
|
|
|
return &ParameterExpression{src, name}, nil
|
|
}
|
|
|
|
func (e *ParameterExpression) Exec(ctx context.Context, _ *core.Scope) (core.Value, error) {
|
|
param, err := core.ParamFrom(ctx, e.name)
|
|
|
|
if err != nil {
|
|
return values.None, core.SourceError(e.src, err)
|
|
}
|
|
|
|
return param, nil
|
|
}
|