odra-codegen 0.7.1

Code generators for Odra IR.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71

use odra_ir::module::Constructor;
use proc_macro2::{Ident, TokenStream};
use quote::quote;

use crate::generator::module_impl::deploy::common;

use super::args_to_runtime_args_stream;

pub fn generate_code(
    struct_ident: &Ident,
    deployer_ident: &Ident,
    ref_ident: &Ident,
    constructors: &[&Constructor]
) -> TokenStream {
    let constructors = build_constructors(constructors, struct_ident, ref_ident);

    quote! {
        impl #deployer_ident {
            #constructors
        }
    }
}

fn build_constructors(
    constructors: &[&Constructor],
    struct_ident: &Ident,
    ref_ident: &Ident
) -> TokenStream {
    if constructors.is_empty() {
        build_default_constructor(struct_ident, ref_ident)
    } else {
        constructors
            .iter()
            .map(|constructor| build_constructor(constructor, struct_ident, ref_ident))
            .collect::<TokenStream>()
    }
}

fn build_default_constructor(struct_ident: &Ident, ref_ident: &Ident) -> TokenStream {
    let struct_name = struct_ident.to_string();
    let struct_name_snake_case = odra_utils::camel_to_snake(&struct_name);

    quote! {
        pub fn default() -> #ref_ident {
            let address = odra::test_env::register_contract(&#struct_name_snake_case, &odra::types::casper_types::RuntimeArgs::new(), None);
            #ref_ident::at(&address)
        }
    }
}

fn build_constructor(
    constructor: &Constructor,
    struct_ident: &Ident,
    ref_ident: &Ident
) -> TokenStream {
    let struct_name = struct_ident.to_string();
    let struct_name_snake_case = odra_utils::camel_to_snake(&struct_name);
    let constructor_ident = &constructor.ident;

    let fn_sig = common::constructor_sig(constructor, ref_ident);
    let args = args_to_runtime_args_stream(&constructor.args);

    quote! {
        pub #fn_sig {
            let args = { #args };
            let constructor = odra::prelude::string::String::from(stringify!(#constructor_ident));
            let address = odra::test_env::register_contract(#struct_name_snake_case, &args, Some(constructor));
            #ref_ident::at(&address)
        }
    }
}