feat(target_chains/starknet): add reexports and utils (#1652)

Author: Riateche

target_chains/starknet/contracts/Scarb.toml

@@ -8,5 +8,7 @@ starknet = ">=2.5.4"
 openzeppelin = { git = "https://github.com/OpenZeppelin/cairo-contracts.git", tag = "v0.10.0" }
 snforge_std = { git = "https://github.com/foundry-rs/starknet-foundry", tag = "v0.21.0" }
 
+[lib]
+
 [[target.starknet-contract]]
 build-external-contracts = ["openzeppelin::presets::erc20::ERC20"]

target_chains/starknet/contracts/src/lib.cairo

@@ -5,3 +5,12 @@ pub mod reader;
 pub mod hash;
 pub mod util;
 pub mod merkle_tree;
+
+pub use byte_array::{ByteArray, ByteArrayTrait};
+pub use pyth::{
+    Event, PriceFeedUpdated, WormholeAddressSet, GovernanceDataSourceSet, ContractUpgraded,
+    DataSourcesSet, FeeSet, GetPriceUnsafeError, GovernanceActionError, UpdatePriceFeedsError,
+    GetPriceNoOlderThanError, UpdatePriceFeedsIfNecessaryError, ParsePriceFeedsError, IPyth,
+    IPythDispatcher, IPythDispatcherTrait, DataSource, Price, PriceFeedPublishTime, PriceFeed,
+};
+pub use util::{exp10, UnwrapWithFelt252, ResultMapErrInto};

target_chains/starknet/contracts/src/util.cairo

@@ -1,3 +1,7 @@
+mod exp10_;
+
+pub use exp10_::exp10;
+
 use core::integer::u128_byte_reverse;
 
 pub const ONE_SHIFT_160: u256 = 0x10000000000000000000000000000000000000000;

target_chains/starknet/contracts/src/util/exp10_.cairo

@@ -0,0 +1,83 @@
+pub fn exp10(x: u8) -> u256 {
+    match x {
+        0 => 1,
+        1 => 10,
+        2 => 100,
+        3 => 1000,
+        4 => 10000,
+        5 => 100000,
+        6 => 1000000,
+        7 => 10000000,
+        8 => 100000000,
+        9 => 1000000000,
+        10 => 10000000000,
+        11 => 100000000000,
+        12 => 1000000000000,
+        13 => 10000000000000,
+        14 => 100000000000000,
+        15 => 1000000000000000,
+        16 => 10000000000000000,
+        17 => 100000000000000000,
+        18 => 1000000000000000000,
+        19 => 10000000000000000000,
+        20 => 100000000000000000000,
+        21 => 1000000000000000000000,
+        22 => 10000000000000000000000,
+        23 => 100000000000000000000000,
+        24 => 1000000000000000000000000,
+        25 => 10000000000000000000000000,
+        26 => 100000000000000000000000000,
+        27 => 1000000000000000000000000000,
+        28 => 10000000000000000000000000000,
+        29 => 100000000000000000000000000000,
+        30 => 1000000000000000000000000000000,
+        31 => 10000000000000000000000000000000,
+        32 => 100000000000000000000000000000000,
+        33 => 1000000000000000000000000000000000,
+        34 => 10000000000000000000000000000000000,
+        35 => 100000000000000000000000000000000000,
+        36 => 1000000000000000000000000000000000000,
+        37 => 10000000000000000000000000000000000000,
+        38 => 100000000000000000000000000000000000000,
+        39 => 1000000000000000000000000000000000000000,
+        40 => 10000000000000000000000000000000000000000,
+        41 => 100000000000000000000000000000000000000000,
+        42 => 1000000000000000000000000000000000000000000,
+        43 => 10000000000000000000000000000000000000000000,
+        44 => 100000000000000000000000000000000000000000000,
+        45 => 1000000000000000000000000000000000000000000000,
+        46 => 10000000000000000000000000000000000000000000000,
+        47 => 100000000000000000000000000000000000000000000000,
+        48 => 1000000000000000000000000000000000000000000000000,
+        49 => 10000000000000000000000000000000000000000000000000,
+        50 => 100000000000000000000000000000000000000000000000000,
+        51 => 1000000000000000000000000000000000000000000000000000,
+        52 => 10000000000000000000000000000000000000000000000000000,
+        53 => 100000000000000000000000000000000000000000000000000000,
+        54 => 1000000000000000000000000000000000000000000000000000000,
+        55 => 10000000000000000000000000000000000000000000000000000000,
+        56 => 100000000000000000000000000000000000000000000000000000000,
+        57 => 1000000000000000000000000000000000000000000000000000000000,
+        58 => 10000000000000000000000000000000000000000000000000000000000,
+        59 => 100000000000000000000000000000000000000000000000000000000000,
+        60 => 1000000000000000000000000000000000000000000000000000000000000,
+        61 => 10000000000000000000000000000000000000000000000000000000000000,
+        62 => 100000000000000000000000000000000000000000000000000000000000000,
+        63 => 1000000000000000000000000000000000000000000000000000000000000000,
+        64 => 10000000000000000000000000000000000000000000000000000000000000000,
+        65 => 100000000000000000000000000000000000000000000000000000000000000000,
+        66 => 1000000000000000000000000000000000000000000000000000000000000000000,
+        67 => 10000000000000000000000000000000000000000000000000000000000000000000,
+        68 => 100000000000000000000000000000000000000000000000000000000000000000000,
+        69 => 1000000000000000000000000000000000000000000000000000000000000000000000,
+        70 => 10000000000000000000000000000000000000000000000000000000000000000000000,
+        71 => 100000000000000000000000000000000000000000000000000000000000000000000000,
+        72 => 1000000000000000000000000000000000000000000000000000000000000000000000000,
+        73 => 10000000000000000000000000000000000000000000000000000000000000000000000000,
+        74 => 100000000000000000000000000000000000000000000000000000000000000000000000000,
+        75 => 1000000000000000000000000000000000000000000000000000000000000000000000000000,
+        76 => 10000000000000000000000000000000000000000000000000000000000000000000000000000,
+        77 => 100000000000000000000000000000000000000000000000000000000000000000000000000000,
+        _ => core::panic_with_felt252('exp10: arg too big'),
+    }
+}

target_chains/starknet/tools/test_vaas/src/bin/hex_to_cairo_calldata.rs

@@ -0,0 +1,10 @@
+use std::io::{stdin, Read};
+
+use test_vaas::print_as_cli_input;
+
+fn main() {
+    let mut buf = String::new();
+    stdin().read_to_string(&mut buf).unwrap();
+    let binary = hex::decode(buf.trim()).unwrap();
+    print_as_cli_input(&binary);
+}