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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141

use anyhow::Result;
use heck::CamelCase;
use proc_macro2::TokenStream;
use quote::{format_ident, quote};

use super::{
    common::{gen_print_section, get_idl_module_path, get_no_docs},
    defined::gen_idl_type,
};
use crate::{parser::docs, Program};

/// Generate the IDL build print function for the program module.
pub fn gen_idl_print_fn_program(program: &Program) -> TokenStream {
    let idl = get_idl_module_path();
    let no_docs = get_no_docs();

    let name = program.name.to_string();
    let docs = match &program.docs {
        Some(docs) if !no_docs => quote! { vec![#(#docs.into()),*] },
        _ => quote! { vec![] },
    };

    let (instructions, defined) = program
        .ixs
        .iter()
        .flat_map(|ix| -> Result<_> {
            let name = ix.ident.to_string();
            let name_pascal = format_ident!("{}", name.to_camel_case());
            let ctx_ident = &ix.anchor_ident;
            let discriminator = quote! {
                <crate::instruction::#name_pascal as anchor_lang::Discriminator>::DISCRIMINATOR
            };

            let docs = match &ix.docs {
                Some(docs) if !no_docs => quote! { vec![#(#docs.into()),*] },
                _ => quote! { vec![] },
            };

            let (args, mut defined) = ix
                .args
                .iter()
                .map(|arg| {
                    let name = arg.name.to_string();
                    let docs = match docs::parse(&arg.raw_arg.attrs) {
                        Some(docs) if !no_docs => quote! { vec![#(#docs.into()),*] },
                        _ => quote! { vec![] },
                    };
                    let (ty, defined) = gen_idl_type(&arg.raw_arg.ty, &[])?;

                    Ok((
                        quote! {
                            #idl::IdlField {
                                name: #name.into(),
                                docs: #docs,
                                ty: #ty,
                            }
                        },
                        defined,
                    ))
                })
                .collect::<Result<Vec<_>>>()?
                .into_iter()
                .unzip::<_, Vec<_>, Vec<_>, Vec<_>>();

            let returns = match gen_idl_type(&ix.returns.ty, &[]) {
                Ok((ty, def)) => {
                    defined.push(def);
                    quote! { Some(#ty) }
                }
                _ => quote! { None },
            };

            Ok((
                quote! {
                    #idl::IdlInstruction {
                        name: #name.into(),
                        docs: #docs,
                        discriminator: #discriminator.into(),
                        accounts: #ctx_ident::__anchor_private_gen_idl_accounts(
                            &mut accounts,
                            &mut types,
                        ),
                        args: vec![#(#args),*],
                        returns: #returns,
                    }
                },
                defined,
            ))
        })
        .unzip::<_, Vec<_>, Vec<_>, Vec<_>>();
    let defined = defined.into_iter().flatten().flatten().collect::<Vec<_>>();

    let fn_body = gen_print_section(
        "program",
        quote! {
            let mut accounts: std::collections::BTreeMap<String, #idl::IdlAccount> =
                std::collections::BTreeMap::new();
            let mut types: std::collections::BTreeMap<String, #idl::IdlTypeDef> =
                std::collections::BTreeMap::new();

            #(
                if let Some(ty) = <#defined>::create_type() {
                    types.insert(<#defined>::get_full_path(), ty);
                    <#defined>::insert_types(&mut types);
                }
            );*

            #idl::Idl {
                address: Default::default(),
                metadata: #idl::IdlMetadata {
                    name: #name.into(),
                    version: env!("CARGO_PKG_VERSION").into(),
                    spec: #idl::IDL_SPEC.into(),
                    description: option_env!("CARGO_PKG_DESCRIPTION")
                        .filter(|d| !d.is_empty())
                        .map(|d| d.into()),
                    repository: option_env!("CARGO_PKG_REPOSITORY")
                        .filter(|r| !r.is_empty())
                        .map(|r| r.into()),
                    dependencies: Default::default(),
                    contact: Default::default(),
                    deployments: Default::default(),
                },
                docs: #docs,
                instructions: vec![#(#instructions),*],
                accounts: accounts.into_values().collect(),
                events: Default::default(),
                errors: Default::default(),
                types: types.into_values().collect(),
                constants: Default::default(),
            }
        },
    );

    quote! {
        #[test]
        pub fn __anchor_private_print_idl_program() {
            #fn_body
        }
    }
}