Introduce an example binary useful for profiling

Cargo.toml

@@ -61,6 +61,10 @@ required-features = ["compiler","std"]
 name = "psbt_sign_finalize"
 required-features = ["std", "base64"]
 
+[[example]]
+name = "big"
+required-features = ["std", "base64", "compiler"]
+
 [workspace]
 members = ["bitcoind-tests", "fuzz"]
 exclude = ["embedded"]

examples/big.rs

@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: CC0-1.0
+//! This is not an example and will surely panic if executed, the purpose of this is using the
+//! compiled binary with tools like `cargo bloat` that cannot work with libraries.
+//!
+//! Ideal properties:
+//!
+//! * Call all the library API surface.
+//! * Depend on user input so that functions are not stripped out on the base of static input.
+//! * Use results so that calls are not stripped out.
+//!
+
+use std::collections::HashMap;
+use std::str::FromStr;
+
+use bitcoin::{ecdsa, XOnlyPublicKey};
+use miniscript::descriptor::Wsh;
+use miniscript::policy::{Concrete, Liftable};
+use miniscript::psbt::PsbtExt;
+use miniscript::{
+    translate_hash_fail, DefiniteDescriptorKey, Descriptor, DescriptorPublicKey, MiniscriptKey,
+    TranslatePk, Translator,
+};
+use secp256k1::Secp256k1;
+fn main() {
+    let empty = "".to_string();
+    let mut args = std::env::args().collect::<Vec<_>>();
+    let i = args.pop().unwrap_or(empty);
+
+    let d = Descriptor::<DescriptorPublicKey>::from_str(&i).unwrap();
+    use_descriptor(d.clone());
+    use_descriptor(Descriptor::<DefiniteDescriptorKey>::from_str(&i).unwrap());
+    use_descriptor(Descriptor::<bitcoin::PublicKey>::from_str(&i).unwrap());
+    use_descriptor(Descriptor::<String>::from_str(&i).unwrap());
+
+    let a = d
+        .at_derivation_index(0)
+        .unwrap()
+        .address(bitcoin::Network::Bitcoin)
+        .unwrap();
+    println!("{}", a);
+
+    let secp = Secp256k1::new();
+    let (d, m) = Descriptor::parse_descriptor(&secp, &i).unwrap();
+    use_descriptor(d);
+    println!("{:?}", m);
+
+    let p = Concrete::<bitcoin::PublicKey>::from_str(&i).unwrap();
+    let h = Wsh::new(p.compile().unwrap()).unwrap();
+    println!("{}", h);
+    println!("{:?}", h.lift());
+    println!("{:?}", h.script_pubkey());
+    println!("{:?}", h.address(bitcoin::Network::Bitcoin));
+
+    let psbt: bitcoin::Psbt = i.parse().unwrap();
+    let psbt = psbt.finalize(&secp).unwrap();
+    let mut tx = psbt.extract_tx().unwrap();
+    println!("{:?}", tx);
+
+    let d = miniscript::Descriptor::<bitcoin::PublicKey>::from_str(&i).unwrap();
+    let sigs = HashMap::<bitcoin::PublicKey, ecdsa::Signature>::new();
+    d.satisfy(&mut tx.input[0], &sigs).unwrap();
+
+    let pol = Concrete::<String>::from_str(&i).unwrap();
+    let desc = pol.compile_tr(Some("UNSPENDABLE_KEY".to_string())).unwrap();
+    println!("{}", desc);
+    let pk_map = HashMap::new();
+    let mut t = StrPkTranslator { pk_map };
+    let real_desc = desc.translate_pk(&mut t).unwrap();
+    println!("{}", real_desc);
+    let addr = real_desc.address(bitcoin::Network::Bitcoin).unwrap();
+    println!("{}", addr);
+}
+
+fn use_descriptor<K: MiniscriptKey>(d: Descriptor<K>) {
+    println!("{}", d);
+    println!("{:?}", d);
+    println!("{:?}", d.desc_type());
+    println!("{:?}", d.sanity_check());
+}
+
+struct StrPkTranslator {
+    pk_map: HashMap<String, XOnlyPublicKey>,
+}
+
+impl Translator<String, XOnlyPublicKey, ()> for StrPkTranslator {
+    fn pk(&mut self, pk: &String) -> Result<XOnlyPublicKey, ()> {
+        self.pk_map.get(pk).copied().ok_or(())
+    }
+
+    // We don't need to implement these methods as we are not using them in the policy.
+    // Fail if we encounter any hash fragments. See also translate_hash_clone! macro.
+    translate_hash_fail!(String, XOnlyPublicKey, ());
+}