119 lines
5.1 KiB
Rust
119 lines
5.1 KiB
Rust
use crate::codegen::program::common::{generate_ix_variant, sighash, SIGHASH_GLOBAL_NAMESPACE};
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use crate::Program;
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use crate::StateIx;
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use quote::quote;
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pub fn generate(program: &Program) -> proc_macro2::TokenStream {
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// Generate cpi methods for the state struct.
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// The Ctor is not exposed via CPI, since it is a one time use function.
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let state_cpi_methods: Vec<proc_macro2::TokenStream> = program
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.state
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.as_ref()
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.map(|state| {
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state
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.impl_block_and_methods
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.as_ref()
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.map(|(_, methods)| {
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methods
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.iter()
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.map(|method: &StateIx| {
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let accounts_ident = &method.anchor_ident;
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let ix_variant = generate_ix_variant(
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method.raw_method.sig.ident.to_string(),
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&method.args,
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);
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let method_name = &method.ident;
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let args: Vec<&syn::PatType> =
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method.args.iter().map(|arg| &arg.raw_arg).collect();
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quote! {
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pub fn #method_name<'a, 'b, 'c, 'info>(
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ctx: CpiStateContext<'a, 'b, 'c, 'info, #accounts_ident<'info>>,
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#(#args),*
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) -> ProgramResult {
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let ix = {
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let ix = instruction::state::#ix_variant;
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let data = anchor_lang::InstructionData::data(&ix);
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let accounts = ctx.to_account_metas(None);
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anchor_lang::solana_program::instruction::Instruction {
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program_id: *ctx.program().key,
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accounts,
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data,
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}
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};
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let mut acc_infos = ctx.to_account_infos();
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anchor_lang::solana_program::program::invoke_signed(
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&ix,
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&acc_infos,
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ctx.signer_seeds(),
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)
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}
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}
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})
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.collect()
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})
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.unwrap_or_else(Vec::new)
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})
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.unwrap_or_else(Vec::new);
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// Generate cpi methods for global methods.
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let global_cpi_methods: Vec<proc_macro2::TokenStream> = program
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.ixs
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.iter()
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.map(|ix| {
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let accounts_ident = &ix.anchor_ident;
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let cpi_method = {
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let ix_variant = generate_ix_variant(ix.raw_method.sig.ident.to_string(), &ix.args);
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let method_name = &ix.ident;
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let args: Vec<&syn::PatType> = ix.args.iter().map(|arg| &arg.raw_arg).collect();
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let name = &ix.raw_method.sig.ident.to_string();
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let sighash_arr = sighash(SIGHASH_GLOBAL_NAMESPACE, name);
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let sighash_tts: proc_macro2::TokenStream =
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format!("{:?}", sighash_arr).parse().unwrap();
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quote! {
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pub fn #method_name<'a, 'b, 'c, 'info>(
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ctx: CpiContext<'a, 'b, 'c, 'info, #accounts_ident<'info>>,
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#(#args),*
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) -> ProgramResult {
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let ix = {
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let ix = instruction::#ix_variant;
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let mut ix_data = AnchorSerialize::try_to_vec(&ix)
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.map_err(|_| anchor_lang::__private::ErrorCode::InstructionDidNotSerialize)?;
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let mut data = #sighash_tts.to_vec();
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data.append(&mut ix_data);
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let accounts = ctx.to_account_metas(None);
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anchor_lang::solana_program::instruction::Instruction {
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program_id: *ctx.program.key,
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accounts,
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data,
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}
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};
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let mut acc_infos = ctx.to_account_infos();
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acc_infos.push(ctx.program.clone());
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anchor_lang::solana_program::program::invoke_signed(
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&ix,
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&acc_infos,
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ctx.signer_seeds,
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)
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}
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}
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};
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cpi_method
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})
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.collect();
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quote! {
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#[cfg(feature = "cpi")]
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pub mod cpi {
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use super::*;
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pub mod state {
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use super::*;
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#(#state_cpi_methods)*
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}
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#(#global_cpi_methods)*
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}
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}
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}
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