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Add CLI interface for verifier contract generation (#74) * add: solidity-verifier workspace member * chore: Update toolchain to 1.74 * feat: Add basic clap cli interface for solidity verifier This includes a cli parser that serves as a way to the user to generate the desired Solidity contracts. * chore: Expose SoldityVerifier template struct * feat: Finish first working version * change: Modify some settings * fix: Fix rebase conflicts * chore: Leave resolver 2 for workspace * chore: Rename KZG+G16 template Now the template refers to Nova + Cyclefold and has a Warning attached to it * fixup * chore: Rename to NovaCyclefoldDecider the template * chore: Change constructors to `new` instead of `from` * add: ProtocolData trait helper This trait helps to treat the serialized data required by the Template as a single element while still allowing a flexible usage. This is specially interesting as allows the cli to operate considering a single path of input data where all the data for the selected protocol co-exists. Reducing the amount of parsing and arguments the user needs to pass to the cli. * chore: Create `From` impls formally Previously we had functions called `from` which had nothing to do with the trait `From`. This addresses this issue and fixes it. Now both `new` and `from` are avaliable. But `from` follows the `From` trait. * add: Support G16, KZG and Nova+Cyclefold in cli This adds a `render` fn for `Protocol` which makes it easier to add new protocols to the CLI as is mainly based in the `ProtocolData` impl behind the scenes of the selected protocol. Aside from that, this commit reworks some minor parts of the CLI config as shorteners for commands or adding `pragma` as an optional parameter. * chore: Adapt `main.rs` to new cli changes As seen, this allows to have a much easier `main.rs` which doesn't have to do any `match` over the selected protocol. * chore: Make solidity helper fns `cfg(test)` * chore: Rework folding-schemes-solidity structure * chore: Remove g1_crs_batch_points_len from KZGData * add: Serde tests for all template targets * tmp: Add NovaCyclefold testing * add: HeaderInclusion template When we use templates that are composed by others (as happens with `NovaCyclefold` one) we sadly see that the License and the `pragma` attributes are rendered once per sub-template. This generic structure solves this issue by being actually the only item rendered which has a sub-template the template we indeed want to render at the end. * chore: Add tests for NovaCyclefold contract This also includes small changes to the lib architecture such as adding constants for GPL3_SDPX_IDENTIFIER or move the default pragma versions used to `mod.rs` * chore: Update g16 to use HeaderInclusion template rendering Now the `ProtocolData` impl falls back to the usage of `HeaderInclusion` it is easier to handle complex templates like `NovaCyclefold`. * add: Small builder-pattern to construct HeaderInclusion Templates As mentioned in previous commits, the idea is that the header is set on an automatic wrapper template applied to the one that we actually want to render. This builder pattern makes it less complex to do such a thing. Specially avoiding unidiomatic `From` implementations. * remove: sdpx & pragma from KZG template Those are externalized and handled by HeaderInclusion template utility * chore: Update templates to use HeaderInclusion builder * chore: Update tests to use HeaderInclusion builderPattern * remove: fixed pragma version in novacyclefold template * chore: Accept Into<Template> in builder * tmp: Only KZG return passes. Fix Groth * fix: Prevent `revert` from paniking for negative tests * feat: Merge G16 and KZG contract results in NovaCyclefold * chore: Add assets for quicker/easier testing Now instead of generating the protocoldata & proofs on each test, we just deserialize * fix: Address clippy & warnings * fix: Spelling to prevent PR farmers LOL * chore: Add about and long_about to CLI tool * add: README.md * chore: Revert asset-based testing approach * remove: Assets folder * fix: Rebase issues * fix: use &mut for Reader * fix: rebase error with Contract name * chore: Reduce tests LOC with setup fn * chore: Set MIT license indentifier for CLI & KZG * chore: Add extra usage example * chore: Update novacyclefold contract comments on soundess * chore: Typo * chore: Allow type complexity clippy for setup fn * chore: Address Pierre's comments * chore: Rename workspace members - folding-schemes-solidity -> soliity-verifiers
9 months ago
Add solidity verifier of the nova+cyclefold (#87) * Add solidity verifier of the nova+cyclefold, and add method to prepare the calldata from Decider's proof. Missing conversion of the point coordinates into limbs (ark compatible) * chore: adding comments linking to the contract's signature * chore: update .gitignore * chore: add num-bigint as dev dependency * fix: work with abs path for storing generated sol code * chore: update comment * feat: solidity verifier working on single and multi-input circuits * feat: multi-input folding verification working + fixing encoding of additive identity in calldata * chore: make bigint a dependency * refactor: import utils functions from utils.rs and make them available from anywhere * chore: make utils and evm available publicly * fix: pub mod instead * chore: make relevant method public and add `get_decider_template_for_cyclefold_decider` to exported objects * solidity-verifiers: move tests to their corresponding files * small update: Cyclefold -> CycleFold at the missing places * abstract nova-cyclefold solidity verifiers tests to avoid code duplication, and abstract also the computed setup params (FS & Decider) to compute them only once for all related tests to save test time * small polish after rebase to last main branch changes * rm unneeded Option for KZGData::g1_crs_batch_points * add checks modifying z_0 & z_i to nova_cyclefold_solidity_verifier test * add light-test feature to decider_eth_circuit to use it in solidity-verifier tests without the big circuit * solidity-verifiers: groth16 template: port the fix from https://github.com/iden3/snarkjs/pull/480 & https://github.com/iden3/snarkjs/issues/479 * add print warning msg for light-test in DeciderEthCircuit * solidity-verifiers: update limbs logic to nonnative last version, parametrize limbs params solidity-verifiers: * update solidity limbs logic to last nonnative impl version, and to last u_i.x impl * parametrize limbs params * add light-test feature: replace the '#[cfg(not(test))]' by the 'light-test' feature that by default is not enabled, so when running the github actions we enable the feature 'light-tests', and then we can have a full-test that runs the test without the 'light-tests' flag, but we don't run this big test every time. The choice of a feature is to allow us to control this from other-crates tests (for example for the solidity-verifier separated crate tests, to avoid running the full heavy circuit in the solidity tests) * move solidity constants into template constants for auto compute of params * polishing * revm use only needed feature This is to avoid c depencency for c-kzg which is behind the c-kzg flag and not needed. * nova_cyclefold_decider.sol header * rearrange test helpers position, add error for min number of steps * in solidity-verifiers: 'data'->'vk/verifier key' * add From for NovaCycleFoldVerifierKey from original vks to simplify dev flow, also conditionally template the batchCheck related structs and methods from the KZG10 solidity template --------- Co-authored-by: dmpierre <pdaixmoreux@gmail.com>
8 months ago
Add CLI interface for verifier contract generation (#74) * add: solidity-verifier workspace member * chore: Update toolchain to 1.74 * feat: Add basic clap cli interface for solidity verifier This includes a cli parser that serves as a way to the user to generate the desired Solidity contracts. * chore: Expose SoldityVerifier template struct * feat: Finish first working version * change: Modify some settings * fix: Fix rebase conflicts * chore: Leave resolver 2 for workspace * chore: Rename KZG+G16 template Now the template refers to Nova + Cyclefold and has a Warning attached to it * fixup * chore: Rename to NovaCyclefoldDecider the template * chore: Change constructors to `new` instead of `from` * add: ProtocolData trait helper This trait helps to treat the serialized data required by the Template as a single element while still allowing a flexible usage. This is specially interesting as allows the cli to operate considering a single path of input data where all the data for the selected protocol co-exists. Reducing the amount of parsing and arguments the user needs to pass to the cli. * chore: Create `From` impls formally Previously we had functions called `from` which had nothing to do with the trait `From`. This addresses this issue and fixes it. Now both `new` and `from` are avaliable. But `from` follows the `From` trait. * add: Support G16, KZG and Nova+Cyclefold in cli This adds a `render` fn for `Protocol` which makes it easier to add new protocols to the CLI as is mainly based in the `ProtocolData` impl behind the scenes of the selected protocol. Aside from that, this commit reworks some minor parts of the CLI config as shorteners for commands or adding `pragma` as an optional parameter. * chore: Adapt `main.rs` to new cli changes As seen, this allows to have a much easier `main.rs` which doesn't have to do any `match` over the selected protocol. * chore: Make solidity helper fns `cfg(test)` * chore: Rework folding-schemes-solidity structure * chore: Remove g1_crs_batch_points_len from KZGData * add: Serde tests for all template targets * tmp: Add NovaCyclefold testing * add: HeaderInclusion template When we use templates that are composed by others (as happens with `NovaCyclefold` one) we sadly see that the License and the `pragma` attributes are rendered once per sub-template. This generic structure solves this issue by being actually the only item rendered which has a sub-template the template we indeed want to render at the end. * chore: Add tests for NovaCyclefold contract This also includes small changes to the lib architecture such as adding constants for GPL3_SDPX_IDENTIFIER or move the default pragma versions used to `mod.rs` * chore: Update g16 to use HeaderInclusion template rendering Now the `ProtocolData` impl falls back to the usage of `HeaderInclusion` it is easier to handle complex templates like `NovaCyclefold`. * add: Small builder-pattern to construct HeaderInclusion Templates As mentioned in previous commits, the idea is that the header is set on an automatic wrapper template applied to the one that we actually want to render. This builder pattern makes it less complex to do such a thing. Specially avoiding unidiomatic `From` implementations. * remove: sdpx & pragma from KZG template Those are externalized and handled by HeaderInclusion template utility * chore: Update templates to use HeaderInclusion builder * chore: Update tests to use HeaderInclusion builderPattern * remove: fixed pragma version in novacyclefold template * chore: Accept Into<Template> in builder * tmp: Only KZG return passes. Fix Groth * fix: Prevent `revert` from paniking for negative tests * feat: Merge G16 and KZG contract results in NovaCyclefold * chore: Add assets for quicker/easier testing Now instead of generating the protocoldata & proofs on each test, we just deserialize * fix: Address clippy & warnings * fix: Spelling to prevent PR farmers LOL * chore: Add about and long_about to CLI tool * add: README.md * chore: Revert asset-based testing approach * remove: Assets folder * fix: Rebase issues * fix: use &mut for Reader * fix: rebase error with Contract name * chore: Reduce tests LOC with setup fn * chore: Set MIT license indentifier for CLI & KZG * chore: Add extra usage example * chore: Update novacyclefold contract comments on soundess * chore: Typo * chore: Allow type complexity clippy for setup fn * chore: Address Pierre's comments * chore: Rename workspace members - folding-schemes-solidity -> soliity-verifiers
9 months ago
Add solidity verifier of the nova+cyclefold (#87) * Add solidity verifier of the nova+cyclefold, and add method to prepare the calldata from Decider's proof. Missing conversion of the point coordinates into limbs (ark compatible) * chore: adding comments linking to the contract's signature * chore: update .gitignore * chore: add num-bigint as dev dependency * fix: work with abs path for storing generated sol code * chore: update comment * feat: solidity verifier working on single and multi-input circuits * feat: multi-input folding verification working + fixing encoding of additive identity in calldata * chore: make bigint a dependency * refactor: import utils functions from utils.rs and make them available from anywhere * chore: make utils and evm available publicly * fix: pub mod instead * chore: make relevant method public and add `get_decider_template_for_cyclefold_decider` to exported objects * solidity-verifiers: move tests to their corresponding files * small update: Cyclefold -> CycleFold at the missing places * abstract nova-cyclefold solidity verifiers tests to avoid code duplication, and abstract also the computed setup params (FS & Decider) to compute them only once for all related tests to save test time * small polish after rebase to last main branch changes * rm unneeded Option for KZGData::g1_crs_batch_points * add checks modifying z_0 & z_i to nova_cyclefold_solidity_verifier test * add light-test feature to decider_eth_circuit to use it in solidity-verifier tests without the big circuit * solidity-verifiers: groth16 template: port the fix from https://github.com/iden3/snarkjs/pull/480 & https://github.com/iden3/snarkjs/issues/479 * add print warning msg for light-test in DeciderEthCircuit * solidity-verifiers: update limbs logic to nonnative last version, parametrize limbs params solidity-verifiers: * update solidity limbs logic to last nonnative impl version, and to last u_i.x impl * parametrize limbs params * add light-test feature: replace the '#[cfg(not(test))]' by the 'light-test' feature that by default is not enabled, so when running the github actions we enable the feature 'light-tests', and then we can have a full-test that runs the test without the 'light-tests' flag, but we don't run this big test every time. The choice of a feature is to allow us to control this from other-crates tests (for example for the solidity-verifier separated crate tests, to avoid running the full heavy circuit in the solidity tests) * move solidity constants into template constants for auto compute of params * polishing * revm use only needed feature This is to avoid c depencency for c-kzg which is behind the c-kzg flag and not needed. * nova_cyclefold_decider.sol header * rearrange test helpers position, add error for min number of steps * in solidity-verifiers: 'data'->'vk/verifier key' * add From for NovaCycleFoldVerifierKey from original vks to simplify dev flow, also conditionally template the batchCheck related structs and methods from the KZG10 solidity template --------- Co-authored-by: dmpierre <pdaixmoreux@gmail.com>
8 months ago
Add CLI interface for verifier contract generation (#74) * add: solidity-verifier workspace member * chore: Update toolchain to 1.74 * feat: Add basic clap cli interface for solidity verifier This includes a cli parser that serves as a way to the user to generate the desired Solidity contracts. * chore: Expose SoldityVerifier template struct * feat: Finish first working version * change: Modify some settings * fix: Fix rebase conflicts * chore: Leave resolver 2 for workspace * chore: Rename KZG+G16 template Now the template refers to Nova + Cyclefold and has a Warning attached to it * fixup * chore: Rename to NovaCyclefoldDecider the template * chore: Change constructors to `new` instead of `from` * add: ProtocolData trait helper This trait helps to treat the serialized data required by the Template as a single element while still allowing a flexible usage. This is specially interesting as allows the cli to operate considering a single path of input data where all the data for the selected protocol co-exists. Reducing the amount of parsing and arguments the user needs to pass to the cli. * chore: Create `From` impls formally Previously we had functions called `from` which had nothing to do with the trait `From`. This addresses this issue and fixes it. Now both `new` and `from` are avaliable. But `from` follows the `From` trait. * add: Support G16, KZG and Nova+Cyclefold in cli This adds a `render` fn for `Protocol` which makes it easier to add new protocols to the CLI as is mainly based in the `ProtocolData` impl behind the scenes of the selected protocol. Aside from that, this commit reworks some minor parts of the CLI config as shorteners for commands or adding `pragma` as an optional parameter. * chore: Adapt `main.rs` to new cli changes As seen, this allows to have a much easier `main.rs` which doesn't have to do any `match` over the selected protocol. * chore: Make solidity helper fns `cfg(test)` * chore: Rework folding-schemes-solidity structure * chore: Remove g1_crs_batch_points_len from KZGData * add: Serde tests for all template targets * tmp: Add NovaCyclefold testing * add: HeaderInclusion template When we use templates that are composed by others (as happens with `NovaCyclefold` one) we sadly see that the License and the `pragma` attributes are rendered once per sub-template. This generic structure solves this issue by being actually the only item rendered which has a sub-template the template we indeed want to render at the end. * chore: Add tests for NovaCyclefold contract This also includes small changes to the lib architecture such as adding constants for GPL3_SDPX_IDENTIFIER or move the default pragma versions used to `mod.rs` * chore: Update g16 to use HeaderInclusion template rendering Now the `ProtocolData` impl falls back to the usage of `HeaderInclusion` it is easier to handle complex templates like `NovaCyclefold`. * add: Small builder-pattern to construct HeaderInclusion Templates As mentioned in previous commits, the idea is that the header is set on an automatic wrapper template applied to the one that we actually want to render. This builder pattern makes it less complex to do such a thing. Specially avoiding unidiomatic `From` implementations. * remove: sdpx & pragma from KZG template Those are externalized and handled by HeaderInclusion template utility * chore: Update templates to use HeaderInclusion builder * chore: Update tests to use HeaderInclusion builderPattern * remove: fixed pragma version in novacyclefold template * chore: Accept Into<Template> in builder * tmp: Only KZG return passes. Fix Groth * fix: Prevent `revert` from paniking for negative tests * feat: Merge G16 and KZG contract results in NovaCyclefold * chore: Add assets for quicker/easier testing Now instead of generating the protocoldata & proofs on each test, we just deserialize * fix: Address clippy & warnings * fix: Spelling to prevent PR farmers LOL * chore: Add about and long_about to CLI tool * add: README.md * chore: Revert asset-based testing approach * remove: Assets folder * fix: Rebase issues * fix: use &mut for Reader * fix: rebase error with Contract name * chore: Reduce tests LOC with setup fn * chore: Set MIT license indentifier for CLI & KZG * chore: Add extra usage example * chore: Update novacyclefold contract comments on soundess * chore: Typo * chore: Allow type complexity clippy for setup fn * chore: Address Pierre's comments * chore: Rename workspace members - folding-schemes-solidity -> soliity-verifiers
9 months ago
Add solidity verifier of the nova+cyclefold (#87) * Add solidity verifier of the nova+cyclefold, and add method to prepare the calldata from Decider's proof. Missing conversion of the point coordinates into limbs (ark compatible) * chore: adding comments linking to the contract's signature * chore: update .gitignore * chore: add num-bigint as dev dependency * fix: work with abs path for storing generated sol code * chore: update comment * feat: solidity verifier working on single and multi-input circuits * feat: multi-input folding verification working + fixing encoding of additive identity in calldata * chore: make bigint a dependency * refactor: import utils functions from utils.rs and make them available from anywhere * chore: make utils and evm available publicly * fix: pub mod instead * chore: make relevant method public and add `get_decider_template_for_cyclefold_decider` to exported objects * solidity-verifiers: move tests to their corresponding files * small update: Cyclefold -> CycleFold at the missing places * abstract nova-cyclefold solidity verifiers tests to avoid code duplication, and abstract also the computed setup params (FS & Decider) to compute them only once for all related tests to save test time * small polish after rebase to last main branch changes * rm unneeded Option for KZGData::g1_crs_batch_points * add checks modifying z_0 & z_i to nova_cyclefold_solidity_verifier test * add light-test feature to decider_eth_circuit to use it in solidity-verifier tests without the big circuit * solidity-verifiers: groth16 template: port the fix from https://github.com/iden3/snarkjs/pull/480 & https://github.com/iden3/snarkjs/issues/479 * add print warning msg for light-test in DeciderEthCircuit * solidity-verifiers: update limbs logic to nonnative last version, parametrize limbs params solidity-verifiers: * update solidity limbs logic to last nonnative impl version, and to last u_i.x impl * parametrize limbs params * add light-test feature: replace the '#[cfg(not(test))]' by the 'light-test' feature that by default is not enabled, so when running the github actions we enable the feature 'light-tests', and then we can have a full-test that runs the test without the 'light-tests' flag, but we don't run this big test every time. The choice of a feature is to allow us to control this from other-crates tests (for example for the solidity-verifier separated crate tests, to avoid running the full heavy circuit in the solidity tests) * move solidity constants into template constants for auto compute of params * polishing * revm use only needed feature This is to avoid c depencency for c-kzg which is behind the c-kzg flag and not needed. * nova_cyclefold_decider.sol header * rearrange test helpers position, add error for min number of steps * in solidity-verifiers: 'data'->'vk/verifier key' * add From for NovaCycleFoldVerifierKey from original vks to simplify dev flow, also conditionally template the batchCheck related structs and methods from the KZG10 solidity template --------- Co-authored-by: dmpierre <pdaixmoreux@gmail.com>
8 months ago
Add CLI interface for verifier contract generation (#74) * add: solidity-verifier workspace member * chore: Update toolchain to 1.74 * feat: Add basic clap cli interface for solidity verifier This includes a cli parser that serves as a way to the user to generate the desired Solidity contracts. * chore: Expose SoldityVerifier template struct * feat: Finish first working version * change: Modify some settings * fix: Fix rebase conflicts * chore: Leave resolver 2 for workspace * chore: Rename KZG+G16 template Now the template refers to Nova + Cyclefold and has a Warning attached to it * fixup * chore: Rename to NovaCyclefoldDecider the template * chore: Change constructors to `new` instead of `from` * add: ProtocolData trait helper This trait helps to treat the serialized data required by the Template as a single element while still allowing a flexible usage. This is specially interesting as allows the cli to operate considering a single path of input data where all the data for the selected protocol co-exists. Reducing the amount of parsing and arguments the user needs to pass to the cli. * chore: Create `From` impls formally Previously we had functions called `from` which had nothing to do with the trait `From`. This addresses this issue and fixes it. Now both `new` and `from` are avaliable. But `from` follows the `From` trait. * add: Support G16, KZG and Nova+Cyclefold in cli This adds a `render` fn for `Protocol` which makes it easier to add new protocols to the CLI as is mainly based in the `ProtocolData` impl behind the scenes of the selected protocol. Aside from that, this commit reworks some minor parts of the CLI config as shorteners for commands or adding `pragma` as an optional parameter. * chore: Adapt `main.rs` to new cli changes As seen, this allows to have a much easier `main.rs` which doesn't have to do any `match` over the selected protocol. * chore: Make solidity helper fns `cfg(test)` * chore: Rework folding-schemes-solidity structure * chore: Remove g1_crs_batch_points_len from KZGData * add: Serde tests for all template targets * tmp: Add NovaCyclefold testing * add: HeaderInclusion template When we use templates that are composed by others (as happens with `NovaCyclefold` one) we sadly see that the License and the `pragma` attributes are rendered once per sub-template. This generic structure solves this issue by being actually the only item rendered which has a sub-template the template we indeed want to render at the end. * chore: Add tests for NovaCyclefold contract This also includes small changes to the lib architecture such as adding constants for GPL3_SDPX_IDENTIFIER or move the default pragma versions used to `mod.rs` * chore: Update g16 to use HeaderInclusion template rendering Now the `ProtocolData` impl falls back to the usage of `HeaderInclusion` it is easier to handle complex templates like `NovaCyclefold`. * add: Small builder-pattern to construct HeaderInclusion Templates As mentioned in previous commits, the idea is that the header is set on an automatic wrapper template applied to the one that we actually want to render. This builder pattern makes it less complex to do such a thing. Specially avoiding unidiomatic `From` implementations. * remove: sdpx & pragma from KZG template Those are externalized and handled by HeaderInclusion template utility * chore: Update templates to use HeaderInclusion builder * chore: Update tests to use HeaderInclusion builderPattern * remove: fixed pragma version in novacyclefold template * chore: Accept Into<Template> in builder * tmp: Only KZG return passes. Fix Groth * fix: Prevent `revert` from paniking for negative tests * feat: Merge G16 and KZG contract results in NovaCyclefold * chore: Add assets for quicker/easier testing Now instead of generating the protocoldata & proofs on each test, we just deserialize * fix: Address clippy & warnings * fix: Spelling to prevent PR farmers LOL * chore: Add about and long_about to CLI tool * add: README.md * chore: Revert asset-based testing approach * remove: Assets folder * fix: Rebase issues * fix: use &mut for Reader * fix: rebase error with Contract name * chore: Reduce tests LOC with setup fn * chore: Set MIT license indentifier for CLI & KZG * chore: Add extra usage example * chore: Update novacyclefold contract comments on soundess * chore: Typo * chore: Allow type complexity clippy for setup fn * chore: Address Pierre's comments * chore: Rename workspace members - folding-schemes-solidity -> soliity-verifiers
9 months ago
  1. use crate::{GPL3_SDPX_IDENTIFIER, PRAGMA_GROTH16_VERIFIER};
  2. use askama::Template;
  3. use crypto::{digest::Digest, sha3::Sha3};
  4. use num_bigint::BigUint;
  5. pub mod encoding;
  6. /// Formats call data from a vec of bytes to a hashmap
  7. /// Useful for debugging directly on the EVM
  8. /// !! Should follow the contract's function signature, we assuming the order of arguments is correct
  9. pub fn get_formatted_calldata(calldata: Vec<u8>) -> Vec<String> {
  10. let mut formatted_calldata = vec![];
  11. for i in (4..calldata.len()).step_by(32) {
  12. let val = BigUint::from_bytes_be(&calldata[i..i + 32]);
  13. formatted_calldata.push(format!("{}", val));
  14. }
  15. formatted_calldata
  16. }
  17. /// Computes the function selector for the nova cyclefold verifier
  18. /// It is computed on the fly since it depends on the length of the first parameter array
  19. pub fn get_function_selector_for_nova_cyclefold_verifier(
  20. first_param_array_length: usize,
  21. ) -> [u8; 4] {
  22. let mut hasher = Sha3::keccak256();
  23. let fn_sig = format!("verifyNovaProof(uint256[{}],uint256[4],uint256[3],uint256[4],uint256[4],uint256[2],uint256[2][2],uint256[2],uint256[4],uint256[2][2])", first_param_array_length);
  24. hasher.input_str(&fn_sig);
  25. let hash = &mut [0u8; 32];
  26. hasher.result(hash);
  27. [hash[0], hash[1], hash[2], hash[3]]
  28. }
  29. #[derive(Template)]
  30. #[template(path = "header_template.askama.sol", ext = "sol")]
  31. pub struct HeaderInclusion<T: Template> {
  32. /// SPDX-License-Identifier
  33. pub sdpx: String,
  34. /// The `pragma` statement.
  35. pub pragma_version: String,
  36. /// The template to render alongside the header.
  37. pub template: T,
  38. }
  39. impl<T: Template + Default> HeaderInclusion<T> {
  40. pub fn builder() -> HeaderInclusionBuilder<T> {
  41. HeaderInclusionBuilder::default()
  42. }
  43. }
  44. #[derive(Debug)]
  45. pub struct HeaderInclusionBuilder<T: Template + Default> {
  46. /// SPDX-License-Identifier
  47. sdpx: String,
  48. /// The `pragma` statement.
  49. pragma_version: String,
  50. /// The template to render alongside the header.
  51. template: T,
  52. }
  53. impl<T: Template + Default> Default for HeaderInclusionBuilder<T> {
  54. fn default() -> Self {
  55. Self {
  56. sdpx: GPL3_SDPX_IDENTIFIER.to_string(),
  57. pragma_version: PRAGMA_GROTH16_VERIFIER.to_string(),
  58. template: T::default(),
  59. }
  60. }
  61. }
  62. impl<T: Template + Default> HeaderInclusionBuilder<T> {
  63. pub fn sdpx<S: Into<String>>(mut self, sdpx: S) -> Self {
  64. self.sdpx = sdpx.into();
  65. self
  66. }
  67. pub fn pragma_version<S: Into<String>>(mut self, pragma_version: S) -> Self {
  68. self.pragma_version = pragma_version.into();
  69. self
  70. }
  71. pub fn template(mut self, template: impl Into<T>) -> Self {
  72. self.template = template.into();
  73. self
  74. }
  75. pub fn build(self) -> HeaderInclusion<T> {
  76. HeaderInclusion {
  77. sdpx: self.sdpx,
  78. pragma_version: self.pragma_version,
  79. template: self.template,
  80. }
  81. }
  82. }