Introduced data transformer

commit-id:8d990066

crates/data-transformer/src/calldata.rs

@@ -0,0 +1,47 @@
+use super::transformer::transform;
+use serde::{Deserialize, Serialize};
+use starknet::core::types::{ContractClass, Felt};
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(untagged)]
+pub enum Calldata {
+    Serialized(Vec<Felt>),
+    Expressions(String),
+}
+
+impl From<Vec<String>> for Calldata {
+    fn from(calldata: Vec<String>) -> Self {
+        let maybe_serialized = calldata
+            .iter()
+            .map(|arg| {
+                Felt::from_dec_str(arg)
+                    .or_else(|_| Felt::from_hex(arg))
+                    .ok()
+            })
+            .collect::<Option<Vec<_>>>();
+
+        if let Some(serialized) = maybe_serialized {
+            Self::Serialized(serialized)
+        } else {
+            Self::Expressions(calldata.join(" "))
+        }
+    }
+}
+
+impl Calldata {
+    /// Serialize the calldata.
+    /// If it's given as a list of `Felt`s, return it immedietely.
+    /// Otherwise, try to interpret is as a comma-separated sequence of Cairo expressions.
+    pub fn serialized(
+        self,
+        class_definition: ContractClass,
+        function_selector: &Felt,
+    ) -> anyhow::Result<Vec<Felt>> {
+        match self {
+            Calldata::Serialized(serialized) => Ok(serialized),
+            Calldata::Expressions(ref expressions) => {
+                transform(expressions, class_definition, function_selector)
+            }
+        }
+    }
+}

crates/data-transformer/src/lib.rs

@@ -1 +1,7 @@
 pub mod cairo_types;
+mod calldata;
+mod sierra_abi;
+mod transformer;
+
+pub use calldata::Calldata;
+pub use transformer::transform;