repogen/internal/spec/errors.go
2021-03-31 18:44:31 +07:00

109 lines
3 KiB
Go

package spec
import (
"fmt"
"strings"
"github.com/sunboyy/repogen/internal/code"
)
// ParsingError is an error from parsing interface methods
type ParsingError string
func (err ParsingError) Error() string {
switch err {
case UnsupportedReturnError:
return "this type of return is not supported"
case QueryRequiredError:
return "query is required"
case InvalidParamError:
return "parameters do not match the query"
case InvalidUpdateFieldsError:
return "update fields are invalid"
case ContextParamRequiredError:
return "context parameter is required"
case PushNonArrayError:
return "cannot use push operation in a non-array type"
}
return string(err)
}
// parsing error constants
const (
UnsupportedReturnError ParsingError = "ERROR_UNSUPPORTED_RETURN"
QueryRequiredError ParsingError = "ERROR_QUERY_REQUIRED"
InvalidParamError ParsingError = "ERROR_INVALID_PARAM"
InvalidUpdateFieldsError ParsingError = "ERROR_INVALID_UPDATE_FIELDS"
ContextParamRequiredError ParsingError = "ERROR_CONTEXT_PARAM_REQUIRED"
PushNonArrayError ParsingError = "ERROR_PUSH_NON_ARRAY"
)
// NewInvalidQueryError creates invalidQueryError
func NewInvalidQueryError(queryTokens []string) error {
return invalidQueryError{QueryString: strings.Join(queryTokens, "")}
}
type invalidQueryError struct {
QueryString string
}
func (err invalidQueryError) Error() string {
return fmt.Sprintf("invalid query '%s'", err.QueryString)
}
// NewInvalidSortError creates invalidSortError
func NewInvalidSortError(sortTokens []string) error {
return invalidSortError{SortString: strings.Join(sortTokens, "")}
}
type invalidSortError struct {
SortString string
}
func (err invalidSortError) Error() string {
return fmt.Sprintf("invalid sort '%s'", err.SortString)
}
// NewUnknownOperationError creates unknownOperationError
func NewUnknownOperationError(operationName string) error {
return unknownOperationError{OperationName: operationName}
}
type unknownOperationError struct {
OperationName string
}
func (err unknownOperationError) Error() string {
return fmt.Sprintf("unknown operation '%s'", err.OperationName)
}
// NewStructFieldNotFoundError creates structFieldNotFoundError
func NewStructFieldNotFoundError(tokens []string) error {
return structFieldNotFoundError{FieldName: strings.Join(tokens, "")}
}
type structFieldNotFoundError struct {
FieldName string
}
func (err structFieldNotFoundError) Error() string {
return fmt.Sprintf("struct field '%s' not found", err.FieldName)
}
// NewIncompatibleComparatorError creates incompatibleComparatorError
func NewIncompatibleComparatorError(comparator Comparator, field code.StructField) error {
return incompatibleComparatorError{
Comparator: comparator,
Field: field,
}
}
type incompatibleComparatorError struct {
Comparator Comparator
Field code.StructField
}
func (err incompatibleComparatorError) Error() string {
return fmt.Sprintf("cannot use comparator %s with struct field '%s' of type '%s'",
err.Comparator, err.Field.Name, err.Field.Type.Code())
}