/
parameters.go
45 lines (36 loc) · 1010 Bytes
/
parameters.go
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package aspect
import ()
// Parameters holds a slice of interface{} parameters
type Parameters struct {
args []interface{}
}
// Add adds a parameter to the parameter slice
func (p *Parameters) Add(i interface{}) int {
p.args = append(p.args, i)
return len(p.args)
}
func (p *Parameters) Args() []interface{} {
return p.args
}
// Len returns the number of parameters in the slice
func (p *Parameters) Len() int {
return len(p.args)
}
// Params creates a new Parameters instance
func Params() *Parameters {
return &Parameters{}
}
// Parameter stores a single value of type interface{}
type Parameter struct {
Value interface{}
}
func (p *Parameter) String() string {
compiled, _ := p.Compile(&defaultDialect{}, Params())
return compiled
}
// Parameter compilation is dialect dependent. For instance, dialects such
// as PostGres require the parameter index.
func (p *Parameter) Compile(d Dialect, params *Parameters) (string, error) {
i := params.Add(p.Value)
return d.Parameterize(i), nil
}