anchor_generate_cpi_interface_mod/
lib.rs

1//! Generates a crate for cross-program invocations to an Anchor program from a JSON IDL.
2//!
3//! # Usage
4//!
5//! In a new crate, write:
6//!
7//! ```skip
8//! anchor_gen::generate_cpi_crate!("../../examples/govern-cpi/idl.json");
9//!
10//! declare_id!("GjphYQcbP1m3FuDyCTUJf2mUMxKPE3j6feWU1rxvC7Ps");
11//! ```
12//!
13//! This will generate a fully functional Rust CPI client for your IDL.
14//!
15//! More examples can be found in the [examples/](https://github.com/saber-hq/anchor-gen/tree/master/examples) directory.
16
17use darling::FromMeta;
18use proc_macro::TokenStream;
19use syn::parse_macro_input;
20use anchor_idl_mod::GeneratorOptions;
21
22/// Generates an Anchor CPI crate from a JSON file.
23///
24/// # Arguments
25///
26/// * `idl_path` - Path to a JSON IDL relative to the crate's the Cargo.toml.
27///
28#[proc_macro]
29pub fn generate_cpi_interface(input: proc_macro::TokenStream) -> TokenStream {
30    let attr_args = parse_macro_input!(input as syn::AttributeArgs);
31    let parsed = match GeneratorOptions::from_list(&attr_args) {
32        Ok(v) => v,
33        Err(e) => {
34            return TokenStream::from(e.write_errors());
35        }
36    };
37    parsed.to_generator().generate_cpi_interface().into()
38}
anchor_generate_cpi_interface_mod/lib.rs

anchor_generate_cpi_interface_mod/
lib.rs
