Struct PostgresHash 

pub struct PostgresHash {
    pub name: Ident,
    pub to_sql_config: ToSqlConfig,
}

A parsed #[derive(PostgresHash)] item.

It should be used with syn::parse::Parse functions.

Using quote::ToTokens will output the declaration for a pgx::datum::sql_entity_graph::InventoryPostgresHash.

On structs:

use syn::{Macro, parse::Parse, parse_quote, parse};
use quote::{quote, ToTokens};
use pgx_utils::sql_entity_graph::PostgresHash;

let parsed: PostgresHash = parse_quote! {
    #[derive(PostgresHash)]
    struct Example<'a> {
        demo: &'a str,
    }
};
let sql_graph_entity_tokens = parsed.to_token_stream();

On enums:

use syn::{Macro, parse::Parse, parse_quote, parse};
use quote::{quote, ToTokens};
use pgx_utils::sql_entity_graph::PostgresHash;

let parsed: PostgresHash = parse_quote! {
    #[derive(PostgresHash)]
    enum Demo {
        Example,
    }
};
let sql_graph_entity_tokens = parsed.to_token_stream();

Fields

name: Ident

to_sql_config: ToSqlConfig

Implementations

impl PostgresHash

pub fn new(name: Ident, to_sql_config: ToSqlConfig) -> Result<Self, Error>

pub fn from_derive_input(derive_input: DeriveInput) -> Result<Self, Error>

Trait Implementations

impl Clone for PostgresHash

fn clone(&self) -> PostgresHash

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PostgresHash

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Parse for PostgresHash

fn parse(input: ParseStream<'_>) -> Result<Self, Error>

impl ToTokens for PostgresHash

fn to_tokens(&self, tokens: &mut TokenStream2)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.