feat(cast): add string-decode to decode string (foundry-rs#9237)

* feat(cast): add error-decode to decode error string Signed-off-by: jsvisa <delweng@gmail.com> * feat(cast): error-decode -> string-decode Signed-off-by: jsvisa <delweng@gmail.com> * add test case for string-decode Signed-off-by: jsvisa <delweng@gmail.com> * Apply suggestions from code review --------- Signed-off-by: jsvisa <delweng@gmail.com> Co-authored-by: zerosnacks <95942363+zerosnacks@users.noreply.github.com>
rplusq · Nov 29, 2024 · 2a2bfec · 2a2bfec
1 parent 748f9fb
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diff --git a/crates/cast/bin/args.rs b/crates/cast/bin/args.rs
@@ -523,7 +523,7 @@ pub enum CastSubcommand {
     ///
     /// Similar to `abi-decode --input`, but function selector MUST be prefixed in `calldata`
     /// string
-    #[command(visible_aliases = &["--calldata-decode","cdd"])]
+    #[command(visible_aliases = &["--calldata-decode", "cdd"])]
     CalldataDecode {
         /// The function signature in the format `<name>(<in-types>)(<out-types>)`.
         sig: String,
@@ -536,6 +536,19 @@ pub enum CastSubcommand {
         json: bool,
     },
 
+    /// Decode ABI-encoded string.
+    ///
+    /// Similar to `calldata-decode --input`, but the function argument is a `string`
+    #[command(visible_aliases = &["--string-decode", "sd"])]
+    StringDecode {
+        /// The ABI-encoded string.
+        data: String,
+
+        /// Print the decoded string as JSON.
+        #[arg(long, short, help_heading = "Display options")]
+        json: bool,
+    },
+
     /// Decode ABI-encoded input or output data.
     ///
     /// Defaults to decoding output data. To decode input data pass --input.

diff --git a/crates/cast/bin/main.rs b/crates/cast/bin/main.rs
@@ -205,6 +205,10 @@ async fn main_args(args: CastArgs) -> Result<()> {
         CastSubcommand::CalldataEncode { sig, args } => {
             sh_println!("{}", SimpleCast::calldata_encode(sig, &args)?)?;
         }
+        CastSubcommand::StringDecode { data, json } => {
+            let tokens = SimpleCast::calldata_decode("Any(string)", &data, true)?;
+            print_tokens(&tokens, json)
+        }
         CastSubcommand::Interface(cmd) => cmd.run().await?,
         CastSubcommand::CreationCode(cmd) => cmd.run().await?,
         CastSubcommand::ConstructorArgs(cmd) => cmd.run().await?,

diff --git a/crates/cast/tests/cli/main.rs b/crates/cast/tests/cli/main.rs
@@ -1482,6 +1482,13 @@ casttest!(parse_units, |_prj, cmd| {
 "#]]);
 });
 
+casttest!(string_decode, |_prj, cmd| {
+    cmd.args(["string-decode", "0x88c379a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000054753303235000000000000000000000000000000000000000000000000000000"]).assert_success().stdout_eq(str![[r#"
+"GS025"
+
+"#]]);
+});
+
 casttest!(format_units, |_prj, cmd| {
     cmd.args(["format-units", "1000000", "6"]).assert_success().stdout_eq(str![[r#"
 1