Packages

An Elixir interface to the libpg_query postgres query parser. Converts a valid PostgreSQL query into a Protobuf based AST.

Current section

Files

Jump to
pg_query_ex lib pg_query proto elixir_pg_query_float.ex
Raw

lib/pg_query/proto/elixir_pg_query_float.ex

# credo:disable-for-this-file
defmodule PgQuery.Float do
@moduledoc false
defstruct fval: ""
(
(
@spec encode(struct) :: {:ok, iodata} | {:error, any}
def encode(msg) do
try do
{:ok, encode!(msg)}
rescue
e in [Protox.EncodingError, Protox.RequiredFieldsError] -> {:error, e}
end
end
@spec encode!(struct) :: iodata | no_return
def encode!(msg) do
[] |> encode_fval(msg)
end
)
[]
[
defp encode_fval(acc, msg) do
try do
if msg.fval == "" do
acc
else
[acc, "\n", Protox.Encode.encode_string(msg.fval)]
end
rescue
ArgumentError ->
reraise Protox.EncodingError.new(:fval, "invalid field value"), __STACKTRACE__
end
end
]
[]
)
(
(
@spec decode(binary) :: {:ok, struct} | {:error, any}
def decode(bytes) do
try do
{:ok, decode!(bytes)}
rescue
e in [Protox.DecodingError, Protox.IllegalTagError, Protox.RequiredFieldsError] ->
{:error, e}
end
end
(
@spec decode!(binary) :: struct | no_return
def decode!(bytes) do
parse_key_value(bytes, struct(PgQuery.Float))
end
)
)
(
@spec parse_key_value(binary, struct) :: struct
defp parse_key_value(<<>>, msg) do
msg
end
defp parse_key_value(bytes, msg) do
{field, rest} =
case Protox.Decode.parse_key(bytes) do
{0, _, _} ->
raise %Protox.IllegalTagError{}
{1, _, bytes} ->
{len, bytes} = Protox.Varint.decode(bytes)
{delimited, rest} = Protox.Decode.parse_delimited(bytes, len)
{[fval: delimited], rest}
{tag, wire_type, rest} ->
{_, rest} = Protox.Decode.parse_unknown(tag, wire_type, rest)
{[], rest}
end
msg_updated = struct(msg, field)
parse_key_value(rest, msg_updated)
end
)
[]
)
(
@spec json_decode(iodata(), keyword()) :: {:ok, struct()} | {:error, any()}
def json_decode(input, opts \\ []) do
try do
{:ok, json_decode!(input, opts)}
rescue
e in Protox.JsonDecodingError -> {:error, e}
end
end
@spec json_decode!(iodata(), keyword()) :: struct() | no_return()
def json_decode!(input, opts \\ []) do
{json_library_wrapper, json_library} = Protox.JsonLibrary.get_library(opts, :decode)
Protox.JsonDecode.decode!(
input,
PgQuery.Float,
&json_library_wrapper.decode!(json_library, &1)
)
end
@spec json_encode(struct(), keyword()) :: {:ok, iodata()} | {:error, any()}
def json_encode(msg, opts \\ []) do
try do
{:ok, json_encode!(msg, opts)}
rescue
e in Protox.JsonEncodingError -> {:error, e}
end
end
@spec json_encode!(struct(), keyword()) :: iodata() | no_return()
def json_encode!(msg, opts \\ []) do
{json_library_wrapper, json_library} = Protox.JsonLibrary.get_library(opts, :encode)
Protox.JsonEncode.encode!(msg, &json_library_wrapper.encode!(json_library, &1))
end
)
(
@deprecated "Use fields_defs()/0 instead"
@spec defs() :: %{
required(non_neg_integer) => {atom, Protox.Types.kind(), Protox.Types.type()}
}
def defs() do
%{1 => {:fval, {:scalar, ""}, :string}}
end
@deprecated "Use fields_defs()/0 instead"
@spec defs_by_name() :: %{
required(atom) => {non_neg_integer, Protox.Types.kind(), Protox.Types.type()}
}
def defs_by_name() do
%{fval: {1, {:scalar, ""}, :string}}
end
)
(
@spec fields_defs() :: list(Protox.Field.t())
def fields_defs() do
[
%{
__struct__: Protox.Field,
json_name: "fval",
kind: {:scalar, ""},
label: :optional,
name: :fval,
tag: 1,
type: :string
}
]
end
[
@spec(field_def(atom) :: {:ok, Protox.Field.t()} | {:error, :no_such_field}),
(
def field_def(:fval) do
{:ok,
%{
__struct__: Protox.Field,
json_name: "fval",
kind: {:scalar, ""},
label: :optional,
name: :fval,
tag: 1,
type: :string
}}
end
def field_def("fval") do
{:ok,
%{
__struct__: Protox.Field,
json_name: "fval",
kind: {:scalar, ""},
label: :optional,
name: :fval,
tag: 1,
type: :string
}}
end
[]
),
def field_def(_) do
{:error, :no_such_field}
end
]
)
[]
(
@spec required_fields() :: []
def required_fields() do
[]
end
)
(
@spec syntax() :: atom()
def syntax() do
:proto3
end
)
[
@spec(default(atom) :: {:ok, boolean | integer | String.t() | float} | {:error, atom}),
def default(:fval) do
{:ok, ""}
end,
def default(_) do
{:error, :no_such_field}
end
]
(
@spec file_options() :: nil
def file_options() do
nil
end
)
end