Introduce CallInfo, which abstracts args, name_span, and source_map

src/commands/autoview.rs

@@ -14,7 +14,7 @@ pub fn autoview(args: SinkCommandArgs) -> Result<(), ShellError> {
         {
             args.ctx.get_sink("binaryview").run(args)?;
         } else if is_single_text_value(&args.input) {
-            view_text_value(&args.input[0], &args.source_map);
+            view_text_value(&args.input[0], &args.call_info.source_map);
         } else if equal_shapes(&args.input) {
             args.ctx.get_sink("table").run(args)?;
         } else {

src/commands/cd.rs

@@ -13,7 +13,7 @@ pub fn cd(args: CommandArgs) -> Result<OutputStream, ShellError> {
                 return Err(ShellError::maybe_labeled_error(
                     "Can not change to home directory",
                     "can not go to home",
-                    args.name_span,
+                    args.call_info.name_span,
                 ))
             }
         },

src/commands/clip.rs

@@ -16,7 +16,7 @@ pub fn clip(args: SinkCommandArgs) -> Result<(), ShellError> {
             }
 
             let string = i.as_string().map_err(labelled(
-                args.name_span,
+                args.call_info.name_span,
                 "Given non-string data",
                 "expected strings from pipeline",
             ))?;

src/commands/command.rs

@@ -12,49 +12,52 @@ use serde::{Deserialize, Serialize};
 use std::path::PathBuf;
 use uuid::Uuid;
 
+#[derive(Deserialize, Serialize, Debug)]
+pub struct CallInfo {
+    pub args: Args,
+    pub source_map: SourceMap,
+    pub name_span: Option<Span>,
+}
+
 #[derive(Getters)]
 #[get = "crate"]
 pub struct CommandArgs {
     pub host: Arc<Mutex<dyn Host + Send>>,
     pub env: Arc<Mutex<Environment>>,
-    pub name_span: Option<Span>,
-    pub source_map: SourceMap,
-    pub args: Args,
+    pub call_info: CallInfo,
     pub input: InputStream,
 }
 
 impl CommandArgs {
     pub fn nth(&self, pos: usize) -> Option<&Spanned<Value>> {
-        self.args.nth(pos)
+        self.call_info.args.nth(pos)
     }
 
     pub fn positional_iter(&self) -> impl Iterator<Item = &Spanned<Value>> {
-        self.args.positional_iter()
+        self.call_info.args.positional_iter()
     }
 
     pub fn expect_nth(&self, pos: usize) -> Result<&Spanned<Value>, ShellError> {
-        self.args.expect_nth(pos)
+        self.call_info.args.expect_nth(pos)
     }
 
     pub fn len(&self) -> usize {
-        self.args.len()
+        self.call_info.args.len()
     }
 
     pub fn get(&self, name: &str) -> Option<&Spanned<Value>> {
-        self.args.get(name)
+        self.call_info.args.get(name)
     }
 
     #[allow(unused)]
     pub fn has(&self, name: &str) -> bool {
-        self.args.has(name)
+        self.call_info.args.has(name)
     }
 }
 
 pub struct SinkCommandArgs {
     pub ctx: Context,
-    pub name_span: Option<Span>,
-    pub source_map: SourceMap,
-    pub args: Args,
+    pub call_info: CallInfo,
     pub input: Vec<Spanned<Value>>,
 }
 

src/commands/config.rs

@@ -39,10 +39,10 @@ impl Command for Config {
 }
 
 pub fn config(args: CommandArgs) -> Result<OutputStream, ShellError> {
-    let mut result = crate::object::config::config(args.name_span)?;
+    let mut result = crate::object::config::config(args.call_info.name_span)?;
 
-    trace!("{:#?}", args.args.positional);
-    trace!("{:#?}", args.args.named);
+    trace!("{:#?}", args.call_info.args.positional);
+    trace!("{:#?}", args.call_info.args.named);
 
     if let Some(v) = args.get("get") {
         let key = v.as_string()?;
@@ -95,7 +95,7 @@ pub fn config(args: CommandArgs) -> Result<OutputStream, ShellError> {
     }
 
     if args.len() == 0 {
-        return Ok(vec![Value::Object(result.into()).spanned(args.name_span)].into());
+        return Ok(vec![Value::Object(result.into()).spanned(args.call_info.name_span)].into());
     }
 
     Err(ShellError::string(format!("Unimplemented")))

src/commands/first.rs

@@ -8,7 +8,7 @@ pub fn first(args: CommandArgs) -> Result<OutputStream, ShellError> {
         return Err(ShellError::maybe_labeled_error(
             "First requires an amount",
             "needs parameter",
-            args.name_span,
+            args.call_info.name_span,
         ));
     }
 

src/commands/from_csv.rs

@@ -6,8 +6,9 @@ pub fn from_csv_string_to_value(
     s: String,
     span: impl Into<Span>,
 ) -> Result<Spanned<Value>, Box<dyn std::error::Error>> {
-
-    let mut reader = ReaderBuilder::new().has_headers(false).from_reader(s.as_bytes());
+    let mut reader = ReaderBuilder::new()
+        .has_headers(false)
+        .from_reader(s.as_bytes());
     let span = span.into();
 
     let mut fields: VecDeque<String> = VecDeque::new();
@@ -30,7 +31,10 @@ pub fn from_csv_string_to_value(
             let mut row = SpannedDictBuilder::new(span);
 
             for (idx, entry) in row_values.iter().enumerate() {
-                row.insert_spanned(fields.get(idx).unwrap(), Value::Primitive(Primitive::String(String::from(entry))).spanned(span));
+                row.insert_spanned(
+                    fields.get(idx).unwrap(),
+                    Value::Primitive(Primitive::String(String::from(entry))).spanned(span),
+                );
             }
 
             rows.insert_spanned(row.into_spanned_value());
@@ -45,7 +49,7 @@ pub fn from_csv_string_to_value(
 
 pub fn from_csv(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let out = args.input;
-    let span = args.name_span;
+    let span = args.call_info.name_span;
 
     Ok(out
         .values

src/commands/from_ini.rs

@@ -39,7 +39,7 @@ pub fn from_ini_string_to_value(
 
 pub fn from_ini(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let out = args.input;
-    let span = args.name_span;
+    let span = args.call_info.name_span;
     Ok(out
         .values
         .map(move |a| match a.item {

src/commands/from_json.rs

@@ -45,7 +45,7 @@ pub fn from_json_string_to_value(
 
 pub fn from_json(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let out = args.input;
-    let span = args.name_span;
+    let span = args.call_info.name_span;
     Ok(out
         .values
         .map(move |a| match a.item {

src/commands/from_toml.rs

@@ -43,7 +43,7 @@ pub fn from_toml_string_to_value(
 
 pub fn from_toml(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let out = args.input;
-    let span = args.name_span;
+    let span = args.call_info.name_span;
     Ok(out
         .values
         .map(move |a| match a.item {

src/commands/from_xml.rs

@@ -61,7 +61,7 @@ pub fn from_xml_string_to_value(
 
 pub fn from_xml(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let out = args.input;
-    let span = args.name_span;
+    let span = args.call_info.name_span;
     Ok(out
         .values
         .map(move |a| match a.item {

src/commands/from_yaml.rs

@@ -50,7 +50,7 @@ pub fn from_yaml_string_to_value(
 
 pub fn from_yaml(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let out = args.input;
-    let span = args.name_span;
+    let span = args.call_info.name_span;
     Ok(out
         .values
         .map(move |a| match a.item {

src/commands/get.rs

@@ -26,7 +26,7 @@ pub fn get(args: CommandArgs) -> Result<OutputStream, ShellError> {
         return Err(ShellError::maybe_labeled_error(
             "Get requires a field or field path",
             "needs parameter",
-            args.name_span,
+            args.call_info.name_span,
         ));
     }
 

src/commands/lines.rs

@@ -7,7 +7,7 @@ use log::trace;
 
 pub fn lines(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let input = args.input;
-    let span = args.name_span;
+    let span = args.call_info.name_span;
 
     let stream = input
         .values

src/commands/ls.rs

@@ -30,7 +30,7 @@ pub fn ls(args: CommandArgs) -> Result<OutputStream, ShellError> {
                 return Err(ShellError::maybe_labeled_error(
                     e.to_string(),
                     e.to_string(),
-                    args.name_span,
+                    args.call_info.name_span,
                 ));
             }
         }
@@ -40,7 +40,7 @@ pub fn ls(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let mut shell_entries = VecDeque::new();
 
     for entry in entries {
-        let value = dir_entry_dict(&entry?, args.name_span)?;
+        let value = dir_entry_dict(&entry?, args.call_info.name_span)?;
         shell_entries.push_back(ReturnSuccess::value(value))
     }
     Ok(shell_entries.to_output_stream())

src/commands/open.rs

@@ -10,7 +10,7 @@ use uuid::Uuid;
 
 command! {
     Open as open(args, path: Spanned<PathBuf>, --raw: Switch,) {
-        let span = args.name_span;
+        let span = args.call_info.name_span;
 
         let cwd = args
             .env
@@ -48,7 +48,7 @@ command! {
                 )?)
             ),
 
-            other => stream.push_back(ReturnSuccess::value(other.spanned(span))),
+            other => stream.push_back(ReturnSuccess::value(other.spanned(contents_span))),
         };
 
         stream

src/commands/pick.rs

@@ -7,7 +7,7 @@ pub fn pick(args: CommandArgs) -> Result<OutputStream, ShellError> {
         return Err(ShellError::maybe_labeled_error(
             "Pick requires fields",
             "needs parameter",
-            args.name_span,
+            args.call_info.name_span,
         ));
     }
 

src/commands/plugin.rs

@@ -84,7 +84,7 @@ pub fn filter_plugin(path: String, args: CommandArgs) -> Result<OutputStream, Sh
 
         let mut reader = BufReader::new(stdout);
 
-        let request = JsonRpc::new("begin_filter", args.args);
+        let request = JsonRpc::new("begin_filter", args.call_info);
         let request_raw = serde_json::to_string(&request).unwrap();
         stdin.write(format!("{}\n", request_raw).as_bytes())?;
         let mut input = String::new();
@@ -183,7 +183,7 @@ pub fn filter_plugin(path: String, args: CommandArgs) -> Result<OutputStream, Sh
 
 pub fn sink_plugin(path: String, args: SinkCommandArgs) -> Result<(), ShellError> {
     //use subprocess::Exec;
-    let request = JsonRpc::new("sink", (args.args, args.input));
+    let request = JsonRpc::new("sink", (args.call_info, args.input));
     let request_raw = serde_json::to_string(&request).unwrap();
     let mut tmpfile = tempfile::NamedTempFile::new()?;
     let _ = writeln!(tmpfile, "{}", request_raw);

src/commands/ps.rs

@@ -10,7 +10,7 @@ pub fn ps(args: CommandArgs) -> Result<OutputStream, ShellError> {
 
     let list = list
         .into_iter()
-        .map(|(_, process)| process_dict(process, args.name_span))
+        .map(|(_, process)| process_dict(process, args.call_info.name_span))
         .collect::<VecDeque<_>>();
 
     Ok(list.from_input_stream())

src/commands/reject.rs

@@ -3,13 +3,13 @@ use crate::object::base::reject_fields;
 use crate::prelude::*;
 
 pub fn reject(args: CommandArgs) -> Result<OutputStream, ShellError> {
-    let name_span = args.name_span;
+    let name_span = args.call_info.name_span;
 
     if args.len() == 0 {
         return Err(ShellError::maybe_labeled_error(
             "Reject requires fields",
             "needs parameter",
-            args.name_span,
+            args.call_info.name_span,
         ));
     }
 

src/commands/rm.rs

@@ -1,7 +1,7 @@
 use crate::errors::ShellError;
-use crate::prelude::*;
-use crate::parser::registry::{CommandConfig, NamedType, PositionalType};
 use crate::parser::hir::SyntaxType;
+use crate::parser::registry::{CommandConfig, NamedType, PositionalType};
+use crate::prelude::*;
 use indexmap::IndexMap;
 
 pub struct Remove;
@@ -31,28 +31,25 @@ impl Command for Remove {
 }
 
 pub fn rm(args: CommandArgs) -> Result<OutputStream, ShellError> {
-    let mut full_path = args.env
-                            .lock()
-                            .unwrap()
-                            .path()
-                            .to_path_buf();
+    let mut full_path = args.env.lock().unwrap().path().to_path_buf();
 
-
-     match args.nth(0)
-               .ok_or_else(|| ShellError::string(&format!("No file or directory specified")))?
-               .as_string()?
-               .as_str() {
-                   "." | ".." => return Err(ShellError::string("\".\" and \"..\" may not be removed")),
-                   file       => full_path.push(file),
+    match args
+        .nth(0)
+        .ok_or_else(|| ShellError::string(&format!("No file or directory specified")))?
+        .as_string()?
+        .as_str()
+    {
+        "." | ".." => return Err(ShellError::string("\".\" and \"..\" may not be removed")),
+        file => full_path.push(file),
     }
 
-
     if full_path.is_dir() {
         if !args.has("recursive") {
             return Err(ShellError::labeled_error(
-                    "is a directory",
-                    "",
-                    args.name_span.unwrap()));
+                "is a directory",
+                "",
+                args.call_info.name_span.unwrap(),
+            ));
         }
         std::fs::remove_dir_all(&full_path).expect("can not remove directory");
     } else if full_path.is_file() {

src/commands/save.rs

@@ -8,15 +8,15 @@ use crate::parser::Spanned;
 use std::path::{Path, PathBuf};
 
 pub fn save(args: SinkCommandArgs) -> Result<(), ShellError> {
-    if args.args.positional.is_none() {
+    if args.call_info.args.positional.is_none() {
         return Err(ShellError::maybe_labeled_error(
             "Save requires a filepath",
             "needs path",
-            args.name_span,
+            args.call_info.name_span,
         ));
     }
 
-    let positional = match args.args.positional {
+    let positional = match args.call_info.args.positional {
         None => return Err(ShellError::string("save requires a filepath")),
         Some(p) => p,
     };

src/commands/skip_while.rs

@@ -30,7 +30,7 @@ pub fn skip_while(args: CommandArgs) -> Result<OutputStream, ShellError> {
         return Err(ShellError::maybe_labeled_error(
             "Where requires a condition",
             "needs condition",
-            args.name_span,
+            args.call_info.name_span,
         ));
     }
 

src/commands/split_column.rs

@@ -5,13 +5,13 @@ use log::trace;
 
 pub fn split_column(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let positional: Vec<_> = args.positional_iter().cloned().collect();
-    let span = args.name_span;
+    let span = args.call_info.name_span;
 
     if positional.len() == 0 {
         return Err(ShellError::maybe_labeled_error(
             "Split-column needs more information",
             "needs parameter (eg split-column \",\")",
-            args.name_span,
+            args.call_info.name_span,
         ));
     }
 

src/commands/split_row.rs

@@ -6,13 +6,13 @@ use log::trace;
 
 pub fn split_row(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let positional: Vec<Spanned<Value>> = args.positional_iter().cloned().collect();
-    let span = args.name_span;
+    let span = args.call_info.name_span;
 
     if positional.len() == 0 {
         return Err(ShellError::maybe_labeled_error(
             "Split-row needs more information",
             "needs parameter (eg split-row \"\\n\")",
-            args.name_span,
+            args.call_info.name_span,
         ));
     }
 

src/commands/sysinfo.rs

@@ -7,10 +7,11 @@ use sys_info::*;
 use sysinfo::{ComponentExt, DiskExt, NetworkExt, RefreshKind, SystemExt};
 
 pub fn sysinfo(args: CommandArgs) -> Result<OutputStream, ShellError> {
-    let mut idx = SpannedDictBuilder::new(args.name_span);
+    let name_span = args.call_info.name_span;
+    let mut idx = SpannedDictBuilder::new(name_span);
 
     if let (Ok(name), Ok(version)) = (os_type(), os_release()) {
-        let mut os_idx = SpannedDictBuilder::new(args.name_span);
+        let mut os_idx = SpannedDictBuilder::new(name_span);
         os_idx.insert("name", Primitive::String(name));
         os_idx.insert("version", Primitive::String(version));
 
@@ -18,7 +19,7 @@ pub fn sysinfo(args: CommandArgs) -> Result<OutputStream, ShellError> {
     }
 
     if let (Ok(num_cpu), Ok(cpu_speed)) = (cpu_num(), cpu_speed()) {
-        let mut cpu_idx = SpannedDictBuilder::new(args.name_span);
+        let mut cpu_idx = SpannedDictBuilder::new(name_span);
         cpu_idx.insert("num", Primitive::Int(num_cpu as i64));
         cpu_idx.insert("speed", Primitive::Int(cpu_speed as i64));
 
@@ -26,7 +27,7 @@ pub fn sysinfo(args: CommandArgs) -> Result<OutputStream, ShellError> {
     }
 
     if let Ok(x) = loadavg() {
-        let mut load_idx = SpannedDictBuilder::new(args.name_span);
+        let mut load_idx = SpannedDictBuilder::new(name_span);
 
         load_idx.insert("1min", Primitive::Float(OF64::from(x.one)));
         load_idx.insert("5min", Primitive::Float(OF64::from(x.five)));
@@ -36,7 +37,7 @@ pub fn sysinfo(args: CommandArgs) -> Result<OutputStream, ShellError> {
     }
 
     if let Ok(x) = mem_info() {
-        let mut mem_idx = SpannedDictBuilder::new(args.name_span);
+        let mut mem_idx = SpannedDictBuilder::new(name_span);
 
         mem_idx.insert("total", Primitive::Bytes(x.total as u64 * 1024));
         mem_idx.insert("free", Primitive::Bytes(x.free as u64 * 1024));
@@ -70,7 +71,7 @@ pub fn sysinfo(args: CommandArgs) -> Result<OutputStream, ShellError> {
     #[cfg(not(windows))]
     {
         if let Ok(x) = boottime() {
-            let mut boottime_idx = SpannedDictBuilder::new(args.name_span);
+            let mut boottime_idx = SpannedDictBuilder::new(name_span);
             boottime_idx.insert("days", Primitive::Int(x.tv_sec / (24 * 3600)));
             boottime_idx.insert("hours", Primitive::Int((x.tv_sec / 3600) % 24));
             boottime_idx.insert("mins", Primitive::Int((x.tv_sec / 60) % 60));
@@ -84,7 +85,7 @@ pub fn sysinfo(args: CommandArgs) -> Result<OutputStream, ShellError> {
     if components_list.len() > 0 {
         let mut v: Vec<Spanned<Value>> = vec![];
         for component in components_list {
-            let mut component_idx = SpannedDictBuilder::new(args.name_span);
+            let mut component_idx = SpannedDictBuilder::new(name_span);
             component_idx.insert("name", Primitive::String(component.get_label().to_string()));
             component_idx.insert(
                 "temp",
@@ -107,7 +108,7 @@ pub fn sysinfo(args: CommandArgs) -> Result<OutputStream, ShellError> {
         let mut v = vec![];
 
         for disk in disks {
-            let mut disk_idx = SpannedDictBuilder::new(args.name_span);
+            let mut disk_idx = SpannedDictBuilder::new(name_span);
             disk_idx.insert("name", Value::string(disk.get_name().to_string_lossy()));
             disk_idx.insert("available", Value::bytes(disk.get_available_space()));
             disk_idx.insert("total", Value::bytes(disk.get_total_space()));
@@ -121,7 +122,7 @@ pub fn sysinfo(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let incoming = network.get_income();
     let outgoing = network.get_outcome();
 
-    let mut network_idx = SpannedDictBuilder::new(args.name_span);
+    let mut network_idx = SpannedDictBuilder::new(name_span);
     network_idx.insert("incoming", Value::bytes(incoming));
     network_idx.insert("outgoing", Value::bytes(outgoing));
     idx.insert_spanned("network", network_idx);

src/commands/to_json.rs

@@ -42,7 +42,7 @@ pub fn value_to_json_value(v: &Value) -> serde_json::Value {
 
 pub fn to_json(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let out = args.input;
-    let name_span = args.name_span;
+    let name_span = args.call_info.name_span;
     Ok(out
         .values
         .map(

src/commands/to_toml.rs

@@ -32,7 +32,7 @@ pub fn value_to_toml_value(v: &Value) -> toml::Value {
 
 pub fn to_toml(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let out = args.input;
-    let name_span = args.name_span;
+    let name_span = args.call_info.name_span;
 
     Ok(out
         .values

src/commands/to_yaml.rs

@@ -40,7 +40,7 @@ pub fn value_to_yaml_value(v: &Value) -> serde_yaml::Value {
 
 pub fn to_yaml(args: CommandArgs) -> Result<OutputStream, ShellError> {
     let out = args.input;
-    let name_span = args.name_span;
+    let name_span = args.call_info.name_span;
     Ok(out
         .values
         .map(

src/context.rs

@@ -1,4 +1,4 @@
-use crate::commands::command::{Sink, SinkCommandArgs};
+use crate::commands::command::{CallInfo, Sink, SinkCommandArgs};
 use crate::parser::{
     registry::{Args, CommandConfig, CommandRegistry},
     Span,
@@ -88,9 +88,11 @@ impl Context {
     ) -> Result<(), ShellError> {
         let command_args = SinkCommandArgs {
             ctx: self.clone(),
-            name_span,
-            source_map: self.source_map.clone(),
-            args,
+            call_info: CallInfo {
+                name_span,
+                source_map: self.source_map.clone(),
+                args,
+            },
             input,
         };
 
@@ -120,9 +122,11 @@ impl Context {
         let command_args = CommandArgs {
             host: self.host.clone(),
             env: self.env.clone(),
-            name_span,
-            source_map,
-            args,
+            call_info: CallInfo {
+                name_span,
+                source_map,
+                args,
+            },
             input,
         };
 

src/lib.rs

@@ -24,7 +24,8 @@ mod plugin;
 mod shell;
 mod stream;
 
-pub use crate::commands::command::{ReturnSuccess, ReturnValue};
+pub use crate::commands::command::{CallInfo, ReturnSuccess, ReturnValue};
+pub use crate::context::SpanSource;
 pub use crate::env::host::BasicHost;
 pub use crate::parser::parse::span::SpannedItem;
 pub use crate::parser::Spanned;

src/plugin.rs

@@ -1,11 +1,11 @@
-use crate::{Args, CommandConfig, ReturnValue, ShellError, Spanned, Value};
+use crate::{CallInfo, CommandConfig, ReturnValue, ShellError, Spanned, Value};
 use serde::{Deserialize, Serialize};
 use std::io;
 
 pub trait Plugin {
     fn config(&mut self) -> Result<CommandConfig, ShellError>;
     #[allow(unused)]
-    fn begin_filter(&mut self, args: Args) -> Result<(), ShellError> {
+    fn begin_filter(&mut self, call_info: CallInfo) -> Result<(), ShellError> {
         Err(ShellError::string(
             "`begin_filter` not implemented in plugin",
         ))
@@ -15,7 +15,7 @@ pub trait Plugin {
         Err(ShellError::string("`filter` not implemented in plugin"))
     }
     #[allow(unused)]
-    fn sink(&mut self, args: Args, input: Vec<Spanned<Value>>) {}
+    fn sink(&mut self, call_info: CallInfo, input: Vec<Spanned<Value>>) {}
 
     fn quit(&mut self) {
         return;
@@ -134,8 +134,14 @@ fn send_response<T: Serialize>(result: T) {
 #[allow(non_camel_case_types)]
 pub enum NuCommand {
     config,
-    begin_filter { params: Args },
-    filter { params: Spanned<Value> },
-    sink { params: (Args, Vec<Spanned<Value>>) },
+    begin_filter {
+        params: CallInfo,
+    },
+    filter {
+        params: Spanned<Value>,
+    },
+    sink {
+        params: (CallInfo, Vec<Spanned<Value>>),
+    },
     quit,
 }

src/plugins/binaryview.rs

@@ -1,6 +1,10 @@
+#![feature(option_flattening)]
 use crossterm::{cursor, terminal, Attribute, RawScreen};
 use indexmap::IndexMap;
-use nu::{serve_plugin, Args, CommandConfig, NamedType, Plugin, ShellError, Spanned, Value};
+use nu::{
+    serve_plugin, CallInfo, CommandConfig, NamedType, Plugin, ShellError, SpanSource, Spanned,
+    Value,
+};
 use pretty_hex::*;
 
 struct BinaryView;
@@ -25,14 +29,15 @@ impl Plugin for BinaryView {
         })
     }
 
-    fn sink(&mut self, args: Args, input: Vec<Spanned<Value>>) {
+    fn sink(&mut self, call_info: CallInfo, input: Vec<Spanned<Value>>) {
         for v in input {
             match v {
                 Spanned {
                     item: Value::Binary(b),
-                    ..
+                    span,
                 } => {
-                    let _ = view_binary(&b, args.has("lores"));
+                    let source = span.source.map(|x| call_info.source_map.get(&x)).flatten();
+                    let _ = view_binary(&b, source, call_info.args.has("lores"));
                 }
                 _ => {}
             }
@@ -40,17 +45,21 @@ impl Plugin for BinaryView {
     }
 }
 
-fn view_binary(b: &[u8], lores_mode: bool) -> Result<(), Box<dyn std::error::Error>> {
+fn view_binary(
+    b: &[u8],
+    source: Option<&SpanSource>,
+    lores_mode: bool,
+) -> Result<(), Box<dyn std::error::Error>> {
     if b.len() > 3 {
         match (b[0], b[1], b[2]) {
             (0x4e, 0x45, 0x53) => {
-                view_contents_interactive(b, lores_mode)?;
+                view_contents_interactive(b, source, lores_mode)?;
                 return Ok(());
             }
             _ => {}
         }
     }
-    view_contents(b, lores_mode)?;
+    view_contents(b, source, lores_mode)?;
     Ok(())
 }
 
@@ -247,7 +256,11 @@ fn load_from_jpg_buffer(buffer: &[u8]) -> Option<(RawImageBuffer)> {
     })
 }
 
-pub fn view_contents(buffer: &[u8], lores_mode: bool) -> Result<(), Box<dyn std::error::Error>> {
+pub fn view_contents(
+    buffer: &[u8],
+    _source: Option<&SpanSource>,
+    lores_mode: bool,
+) -> Result<(), Box<dyn std::error::Error>> {
     let mut raw_image_buffer = load_from_png_buffer(buffer);
 
     if raw_image_buffer.is_none() {
@@ -332,14 +345,29 @@ pub fn view_contents(buffer: &[u8], lores_mode: bool) -> Result<(), Box<dyn std:
 
 pub fn view_contents_interactive(
     buffer: &[u8],
+    source: Option<&SpanSource>,
     lores_mode: bool,
 ) -> Result<(), Box<dyn std::error::Error>> {
     use rawkey::{KeyCode, RawKey};
 
+    let sav_path = if let Some(SpanSource::File(f)) = source {
+        let mut path = std::path::PathBuf::from(f);
+        path.set_extension("sav");
+        Some(path)
+    } else {
+        None
+    };
+
     let mut nes = neso::Nes::new(48000.0);
     let rawkey = RawKey::new();
     nes.load_rom(&buffer);
 
+    if let Some(ref sav_path) = sav_path {
+        if let Ok(contents) = std::fs::read(sav_path) {
+            let _ = nes.load_state(&contents);
+        }
+    }
+
     nes.reset();
 
     if let Ok(_raw) = RawScreen::into_raw_mode() {
@@ -403,6 +431,13 @@ pub fn view_contents_interactive(
         }
     }
 
+    if let Some(ref sav_path) = sav_path {
+        let buffer = nes.save_state();
+        if let Ok(buffer) = buffer {
+            let _ = std::fs::write(sav_path, buffer);
+        }
+    }
+
     let cursor = cursor();
     let _ = cursor.show();
 

src/plugins/inc.rs

@@ -1,7 +1,7 @@
 use indexmap::IndexMap;
 use nu::{
-    serve_plugin, Args, CommandConfig, NamedType, Plugin, PositionalType, Primitive, ReturnSuccess,
-    ReturnValue, ShellError, Spanned, SpannedItem, Value,
+    serve_plugin, CallInfo, CommandConfig, NamedType, Plugin, PositionalType, Primitive,
+    ReturnSuccess, ReturnValue, ShellError, Spanned, SpannedItem, Value,
 };
 
 struct Inc {
@@ -99,18 +99,18 @@ impl Plugin for Inc {
             rest_positional: true,
         })
     }
-    fn begin_filter(&mut self, args: Args) -> Result<(), ShellError> {
-        if args.has("major") {
+    fn begin_filter(&mut self, call_info: CallInfo) -> Result<(), ShellError> {
+        if call_info.args.has("major") {
             self.major = true;
         }
-        if args.has("minor") {
+        if call_info.args.has("minor") {
             self.minor = true;
         }
-        if args.has("patch") {
+        if call_info.args.has("patch") {
             self.patch = true;
         }
 
-        if let Some(args) = args.positional {
+        if let Some(args) = call_info.args.positional {
             for arg in args {
                 match arg {
                     Spanned {

src/plugins/skip.rs

@@ -1,7 +1,7 @@
 use indexmap::IndexMap;
 use nu::{
-    serve_plugin, Args, CommandConfig, Plugin, Primitive, ReturnSuccess, ReturnValue, ShellError,
-    Spanned, Value,
+    serve_plugin, CallInfo, CommandConfig, Plugin, Primitive, ReturnSuccess, ReturnValue,
+    ShellError, Spanned, Value,
 };
 
 struct NewSkip {
@@ -24,8 +24,8 @@ impl Plugin for NewSkip {
             rest_positional: true,
         })
     }
-    fn begin_filter(&mut self, args: Args) -> Result<(), ShellError> {
-        if let Some(args) = args.positional {
+    fn begin_filter(&mut self, call_info: CallInfo) -> Result<(), ShellError> {
+        if let Some(args) = call_info.args.positional {
             for arg in args {
                 match arg {
                     Spanned {
@@ -34,7 +34,13 @@ impl Plugin for NewSkip {
                     } => {
                         self.skip_amount = i;
                     }
-                    _ => return Err(ShellError::labeled_error("Unrecognized type in params", "expected an integer", arg.span)),
+                    _ => {
+                        return Err(ShellError::labeled_error(
+                            "Unrecognized type in params",
+                            "expected an integer",
+                            arg.span,
+                        ))
+                    }
                 }
             }
         }

src/plugins/tree.rs

@@ -1,6 +1,6 @@
 use derive_new::new;
 use indexmap::IndexMap;
-use nu::{serve_plugin, Args, CommandConfig, Plugin, ShellError, Spanned, Value};
+use nu::{serve_plugin, CallInfo, CommandConfig, Plugin, ShellError, Spanned, Value};
 use ptree::item::StringItem;
 use ptree::output::print_tree_with;
 use ptree::print_config::PrintConfig;
@@ -91,7 +91,7 @@ impl Plugin for TreeViewer {
         })
     }
 
-    fn sink(&mut self, _args: Args, input: Vec<Spanned<Value>>) {
+    fn sink(&mut self, _call_info: CallInfo, input: Vec<Spanned<Value>>) {
         if input.len() > 0 {
             for i in input.iter() {
                 let view = TreeView::from_value(&i);