feat(pair xASTRO): add virtual pair backed by ASTRO staking contract

Cargo.toml

@@ -9,6 +9,7 @@ members = [
     "contracts/pair_astro_converter",
     "contracts/pair_transmuter",
     #  "contracts/pair_concentrated_inj", TODO: rewrite OB liquidity deployment
+    "contracts/pair_xastro",
     "contracts/pair_xyk_sale_tax",
     "contracts/router",
     "contracts/whitelist",
@@ -24,7 +25,7 @@ thiserror = "1.0"
 itertools = "0.12"
 cosmwasm-schema = "1.5"
 cw-utils = "1"
-astroport = { path = "./packages/astroport", version = "5.4.0" }
+astroport = { path = "./packages/astroport", version = "5.6.0" }
 
 [profile.release]
 opt-level = "z"

contracts/pair_xastro/.cargo/config

@@ -0,0 +1,6 @@
+[alias]
+wasm = "build --release --target wasm32-unknown-unknown"
+wasm-debug = "build --target wasm32-unknown-unknown"
+unit-test = "test --lib"
+integration-test = "test --test integration"
+schema = "run --example pair_schema"

contracts/pair_xastro/.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.rs]
+indent_size = 4

contracts/pair_xastro/Cargo.toml

@@ -0,0 +1,33 @@
+[package]
+name = "astroport-pair-xastro"
+version = "1.0.0"
+authors = ["Astroport"]
+edition = "2021"
+description = "Astroport virtual pair for ASTRO<>xASTRO conversion backed by staking contract"
+license = "GPL-3.0-only"
+repository = "https://github.com/astroport-fi/astroport"
+homepage = "https://astroport.fi"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[features]
+backtraces = ["cosmwasm-std/backtraces"]
+library = []
+
+[dependencies]
+astroport.workspace = true
+cw2.workspace = true
+cosmwasm-std = { workspace = true, features = ["cosmwasm_1_1", "stargate"] }
+cw-storage-plus.workspace = true
+thiserror.workspace = true
+cosmwasm-schema.workspace = true
+
+[dev-dependencies]
+anyhow = "1"
+derivative = "2.2"
+itertools.workspace = true
+astroport-test = { path = "../../packages/astroport_test" }
+astroport-factory = { path = "../factory" }
+astroport-staking = { path = "../tokenomics/staking" }
+astroport-tokenfactory-tracker = "1.0.0"

contracts/pair_xastro/README.md

@@ -0,0 +1 @@
+# Astroport ASTRO<>xASTRO virtual pair backed by staking contract.

contracts/pair_xastro/examples/pair_xastro_schema.rs

@@ -0,0 +1,11 @@
+use cosmwasm_schema::write_api;
+
+use astroport::pair::{ExecuteMsg, InstantiateMsg, QueryMsg};
+
+fn main() {
+    write_api! {
+        instantiate: InstantiateMsg,
+        query: QueryMsg,
+        execute: ExecuteMsg,
+    }
+}

contracts/pair_xastro/rustfmt.toml

@@ -0,0 +1,15 @@
+# stable
+newline_style = "unix"
+hard_tabs = false
+tab_spaces = 4
+
+# unstable... should we require `rustup run nightly cargo fmt` ?
+# or just update the style guide when they are stable?
+#fn_single_line = true
+#format_code_in_doc_comments = true
+#overflow_delimited_expr = true
+#reorder_impl_items = true
+#struct_field_align_threshold = 20
+#struct_lit_single_line = true
+#report_todo = "Always"
+