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convert.go
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convert.go
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package tfsdk
import (
"context"
"fmt"
"github.com/hashicorp/terraform-plugin-framework/attr"
"github.com/hashicorp/terraform-plugin-framework/diag"
"github.com/hashicorp/terraform-plugin-go/tftypes"
)
// ConvertValue creates a new attr.Value of the attr.Type `typ`, using the data
// in `val`, which can be of any attr.Type so long as its TerraformType method
// returns a tftypes.Type that `typ`'s ValueFromTerraform method can accept.
func ConvertValue(ctx context.Context, val attr.Value, typ attr.Type) (attr.Value, diag.Diagnostics) {
tftype := typ.TerraformType(ctx)
tfval, err := val.ToTerraformValue(ctx)
if err != nil {
return nil, diag.Diagnostics{diag.NewErrorDiagnostic("Error converting value",
fmt.Sprintf("An unexpected error was encountered converting a %T to a %s. This is always a problem with the provider. Please tell the provider developers that %T ran into the following error during ToTerraformValue: %s", val, typ, val, err),
)}
}
err = tftypes.ValidateValue(tftype, tfval)
if err != nil {
return nil, diag.Diagnostics{diag.NewErrorDiagnostic("Error converting value",
fmt.Sprintf("An unexpected error was encountered converting a %T to a %s. This is always a problem with the provider. Please tell the provider developers that %T is not compatible with %s.", val, typ, val, typ),
)}
}
newVal := tftypes.NewValue(tftype, tfval)
res, err := typ.ValueFromTerraform(ctx, newVal)
if err != nil {
return nil, diag.Diagnostics{diag.NewErrorDiagnostic("Error converting value",
fmt.Sprintf("An unexpected error was encountered converting a %T to a %s. This is always a problem with the provider. Please tell the provider developers that %s returned the following error when calling ValueFromTerraform: %s", val, typ, typ, err),
)}
}
return res, nil
}