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arg-parsin
@ -1,124 +0,0 @@
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use super::*;
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use treemap::{
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Rect,
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Mappable,
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TreemapLayout
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};
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use data::{FsInfo, INodeInfoGraph, INodeInfoGraphEntry};
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/// A treemap of all **files** in the graph.
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#[derive(Debug, Clone, PartialEq)]
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pub struct Treemap
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{
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//layout: TreemapLayout,
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nodes: Vec<MapNode>,
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}
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impl Treemap
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{
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/// All nodes of the map.
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#[inline] pub fn nodes(&self) -> &[MapNode]
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{
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&self.nodes[..]
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}
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}
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#[derive(Debug, Clone, PartialEq)]
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pub struct MapNode
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{
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name: String,
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vw_size: f64, // Should be halved each iteration
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vw_bounds: Rect, // should be Rect::new() before aligntment
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}
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impl MapNode
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{
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/// The calculated bounds of the node
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#[inline] pub fn bounds(&self) -> &Rect
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{
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&self.vw_bounds
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}
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/// The name of the node
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#[inline] pub fn name(&self) -> &str
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{
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&self.name[..]
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}
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#[inline] fn size(&self) -> f64 //Is this useful for consumer?
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{
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self.vw_size
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}
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#[inline] fn new(name: String) -> Self
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{
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Self {
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vw_size: 1.0,
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vw_bounds: Rect::new(),
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name,
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}
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}
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}
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/// Create a treemap from this graph.
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pub fn treemap(_cfg: &Config, graph: &INodeInfoGraph, (w, h): (f64, f64)) -> Treemap
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{
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let layout = TreemapLayout::new();
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let mut nodes = Vec::with_capacity(graph.len());
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//TODO: Recursively walk the graph, halving size with each iteration. (Maybe we need `INodeInfoGraph` here, not `Hierarchicalinodegraph`?)
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let total_size = graph.total_size();
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let size = 1.0;
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fn calc_path<'a, I: IntoIterator<Item = INodeInfoGraphEntry<'a>>>(insert: &'a mut Vec<MapNode>, from: I, total_size: u64, size: f64, scale: f64)
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{
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for top in from {
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let path = top.path();
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match top.info() {
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FsInfo::Directory(_) => {
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//TODO: Do we add dir itself? I think not?
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// Add children
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let size = size * 0.5;
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calc_path(insert, top.level().unwrap(), total_size, size, scale);
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},
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&FsInfo::File(sz, _) => {
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let fract = (sz as f64) / (total_size as f64);
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insert.push(MapNode {
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name: path.to_string_lossy().into_owned(),
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vw_size: fract * scale,
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vw_bounds: Rect::new(),
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})
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},
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}
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}
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}
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calc_path(&mut nodes, graph.top_level(), total_size, size, 1.0);
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layout.layout_items(&mut nodes[..], Rect {
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x: 0.0,
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y: 0.0,
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w, h,
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});
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Treemap {
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//layout,
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nodes
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}
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}
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impl Mappable for MapNode
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{
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fn size(&self) -> f64
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{
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self.vw_size
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}
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fn bounds(&self) -> &Rect
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{
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&self.vw_bounds
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}
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fn set_bounds(&mut self, bounds: Rect)
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{
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self.vw_bounds = bounds;
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}
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}
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@ -1,131 +0,0 @@
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//! Graph inspection REPL
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use super::*;
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use std::{fmt, error};
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use std::path::PathBuf;
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use std::io;
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use rustyline::error::ReadlineError;
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use rustyline::Editor;
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mod env;
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mod command;
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mod opcodes;
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/// Default history file name
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///
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/// # Path lookup
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/// * To make this an absolute path, start it with `/`
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/// * To make this path relative to the user's home directory, start it with `~/` (Note: If we are unable to find the user's home directory, it is considered a lookup **failure** (*not* a **disable**) and `calculate_history_path()` will return `Err`.)
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/// * Otherwise, the path is taken relative to the current working directory
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///
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/// # Notes
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/// This is only used when the `save-history` feature is enabled.
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const DEFAULT_HISTORY_FILE: &'static str = "~/.dirstat_history";
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/// Get the path to the history file.
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///
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/// # Lookup
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/// * If the `DIRSTAT_HISTORY` envvar is set and not empty, use this file path.
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/// * If the `DIRSTAT_HISTORY` envvar is set and empty, saving history is considered **disabled**, we return `Ok(None)`.
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/// * Otherwise, refer to lookup rules for `DEFAULT_HISTORY_FILE`.
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pub fn calculate_history_path() -> io::Result<Option<PathBuf>>
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{
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cfg_if! {
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if #[cfg(feature="save-history")] {
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todo!()
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} else {
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unreachable!("Tried to calculate repl history path when binary was compiled with history saving perma-disabled.")
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}
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}
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}
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/// Inspect the graph with commands
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///
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/// # Note
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/// This function synchronously blocks the current thread.
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pub fn inspect(cfg: &Config, graph: &HierarchicalINodeGraph) -> Result<(), ReplExitError>
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{
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let mut repl = Editor::<()>::new(); //TODO: Change `()` to our completer, when we have a decent idea of how they'll work.
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cfg_if! {
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if #[cfg(feature="save-history")] {
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let history_path = match calculate_history_path() {
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Ok(Some(path)) => {
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if let Err(err) = repl.load_history(&path)
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{
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cfg_eprintln!(cfg, "Failed to load repl history from {:?}: {}", path, err);
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}
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Some(path)
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},
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Ok(None) => None,
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Err(err)
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{
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cfg_eprintln!(cfg, "Failed to find repl history: {}", err);
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None
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}
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}
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}
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}
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let res: Result<(), ReplExitError> = try {
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loop {
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let line = repl.readline("> ")?;
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repl.add_history_entry(&line);
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//TODO: How to interpret commands?
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todo!("Interpret commands from `line`.");
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}
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};
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cfg_if! {
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if #[cfg(feature="save-history")] {
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if let Some(path) = history_path {
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if let Err(err) = repl.save_history(&path)
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{
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cfg_eprintln!(cfg, "Failed to save repl history to {:?}: {}", path, err);
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}
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}
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}
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}
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res
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}
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/// When the inspection repl exists abnormally.
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#[derive(Debug)]
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pub enum ReplExitError
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{
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ReadLine(ReadlineError),
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}
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impl From<ReadlineError> for ReplExitError
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{
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#[inline] fn from(from: ReadlineError) -> Self
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{
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Self::ReadLine(from)
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}
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}
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impl error::Error for ReplExitError
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{
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fn source(&self) -> Option<&(dyn error::Error + 'static)> {
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Some(match &self
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{
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Self::ReadLine(rl) => rl
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})
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}
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}
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impl fmt::Display for ReplExitError
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{
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
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{
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match self
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{
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Self::ReadLine(ReadlineError::Eof) |
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Self::ReadLine(ReadlineError::Interrupted) => write!(f, "exit"),
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Self::ReadLine(_) => write!(f, "readline error"),
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}
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}
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}
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@ -1,54 +0,0 @@
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//! Repl commands
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use super::*;
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use std::str::FromStr;
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use super::env::*;
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#[derive(Debug)]
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pub struct Context<'a>
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{
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/// Environment containing variable name mappings.
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env: &'a mut Lexenv,
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}
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/// Trait for commands.
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///
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/// # Defining commands
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/// A command object should be created once only, and then referenced and executed using `params` and through mutating `cx`.
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pub trait Command: fmt::Debug
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{
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fn execute(&self, cx: &mut Context<'_>, params: Vec<Value>) -> eyre::Result<()>;
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}
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/// Command structurally parsed.
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///
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/// Can be converted into `Command` with the `TryInto` trait.
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#[derive(Debug, Clone, PartialEq, Eq, Hash)]
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pub struct IR
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{
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op: String,
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params: Vec<Value>,
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}
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impl FromStr for IR
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{
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type Err = CommandParseError;
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fn from_str(s: &str) -> Result<Self, Self::Err> {
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todo!()
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}
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}
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/// Error when parsing a command into `IR`.
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#[derive(Debug)]
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pub struct CommandParseError(String);
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impl error::Error for CommandParseError{}
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impl fmt::Display for CommandParseError
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{
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
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{
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write!(f, "failed to parse command from {:?}", self.0)
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}
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}
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@ -1,242 +0,0 @@
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//! Execution environment for repl
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use super::*;
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use std::str::FromStr;
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use std::collections::{BTreeMap, HashMap};
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#[derive(Debug)]
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pub struct Lexenv
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{
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/// Maps symbol name to value in generations.
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kvstack: BTreeMap<usize, HashMap<String, Value>>,
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/// Current generation of the satck
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current_generation: usize,
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}
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impl Lexenv
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{
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/// The generation number of the current level.
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pub fn depth(&self) -> usize
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{
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self.current_generation
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}
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/// Create a new empty lexenv
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pub fn new() -> Self
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{
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Self {
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kvstack: BTreeMap::new(),
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current_generation: 0,
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}
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}
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/// All valid symbols at this level.
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///
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/// # Ordering
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/// Each symbol's level will appear in the order from level 0 to the current level, however the order of intra-level symbols is undefined.
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pub fn symbols(&self) -> impl Iterator<Item = &'_ Value> + '_
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{
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self.kvstack.range(0..=self.current_generation).flat_map(|(_, v)| v.values())
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}
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/// All valid symbols **in** this level.
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pub fn symbols_local(&self) -> impl Iterator<Item = &'_ Value> + '_
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{
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OptionIterator::from(self.kvstack.get(&self.current_generation).map(|x| x.values()))
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}
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/// Remove the current level, but leave its memory allocated for further use.
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pub fn pop(&mut self)
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{
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self.kvstack.entry(self.current_generation).or_insert_with(|| HashMap::new()).clear();
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if self.current_generation > 0 {
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self.current_generation-=1;
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}
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}
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/// Remove a symbol from the **current** level.
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pub fn remove(&mut self, name: &str) -> Option<Value>
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{
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self.kvstack.entry(self.current_generation).or_insert_with(|| HashMap::new()).remove(name)
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}
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/// Insert a new value mapping into the current level.
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pub fn insert(&mut self, name: String, value: Value)
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{
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self.kvstack.entry(self.current_generation).or_insert_with(|| HashMap::new()).insert(name, value);
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}
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/// Look up a symbol in this or any of the above levels.
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pub fn lookup(&self, name: &str) -> Option<&Value>
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{
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for (_, lvmap) in self.kvstack.range(0..=self.current_generation).rev()
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{
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let m = lvmap.get(name);
|
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if m.is_some() {
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return m;
|
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}
|
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}
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None
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}
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/// Look up a symbol in this level.
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pub fn lookup_local(&self, name: &str) -> Option<&Value>
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{
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self.kvstack.get(&self.current_generation).map(|map| map.get(name)).flatten()
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}
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/// Create a new, empty level.
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pub fn push(&mut self)
|
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{
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self.current_generation+=1;
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}
|
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|
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/// Remove the current level, deallocating any memory it was using.
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pub fn pop_clear(&mut self)
|
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{
|
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if self.current_generation > 0 {
|
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self.kvstack.remove(&self.current_generation);
|
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self.current_generation -=1;
|
||||
} else {
|
||||
self.kvstack.entry(0).or_insert_with(|| HashMap::new()).clear();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
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/// The value type
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
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pub enum Value
|
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{
|
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String(String),
|
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Symbol(String),
|
||||
List(Vec<Value>),
|
||||
}
|
||||
|
||||
impl Value
|
||||
{
|
||||
/// Parse from an iterator of `char`s.
|
||||
pub fn parse_chars<T>(ch: &mut T) -> Result<Self, ValueParseError>
|
||||
where T: Iterator<Item = char>
|
||||
{
|
||||
|
||||
match ch.next()
|
||||
{
|
||||
Some('(') => {
|
||||
todo!("list");
|
||||
},
|
||||
Some('"') => {
|
||||
todo!("string");
|
||||
},
|
||||
Some(first_chr) => {
|
||||
todo!("symbol");
|
||||
},
|
||||
_ => Err(ValueParseError(String::default())),
|
||||
}
|
||||
}
|
||||
/// Parse a `Value` from this string and then return the rest of the string.
|
||||
#[deprecated]
|
||||
pub fn parse_running(s: &str) -> Result<(Self, &'_ str), ValueParseError>
|
||||
{
|
||||
match s.trim().as_bytes()
|
||||
{
|
||||
& [b'(', ..] => {
|
||||
todo!("list");
|
||||
},
|
||||
& [b'"', ..] => {
|
||||
todo!("string");
|
||||
},
|
||||
_ => {
|
||||
todo!("shmbol");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl FromStr for Value
|
||||
{
|
||||
type Err = ValueParseError;
|
||||
fn from_str(s: &str) -> Result<Self, Self::Err> {
|
||||
Self::parse_running(s).map(|(x, _)| x)
|
||||
}
|
||||
}
|
||||
|
||||
impl Value
|
||||
{
|
||||
pub fn try_as_symbol(&self) -> Result<&str, ValueTypeError>
|
||||
{
|
||||
match self {
|
||||
Self::Symbol(s) => Ok(&s[..]),
|
||||
_ => Err(ValueTypeError::Symbol),
|
||||
}
|
||||
}
|
||||
pub fn try_as_string(&self) -> Result<&str, ValueTypeError>
|
||||
{
|
||||
match self {
|
||||
Self::Symbol(s) |
|
||||
Self::String(s) => Ok(&s[..]),
|
||||
_ => Err(ValueTypeError::String),
|
||||
}
|
||||
}
|
||||
pub fn try_as_list(&self) -> Result<&[Value], ValueTypeError>
|
||||
{
|
||||
match self {
|
||||
Self::List(l) => Ok(&l[..]),
|
||||
_ => Err(ValueTypeError::List),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn as_symbol(&self) -> Option<&str>
|
||||
{
|
||||
match self {
|
||||
Self::Symbol(s) => Some(&s[..]),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
pub fn as_string(&self) -> Option<&str>
|
||||
{
|
||||
match self {
|
||||
Self::Symbol(s) |
|
||||
Self::String(s) => Some(&s[..]),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
pub fn as_list(&self) -> Option<&[Value]>
|
||||
{
|
||||
match self {
|
||||
Self::List(l) => Some(&l[..]),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Error when using `try_as_*` functions on `Value`.
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Copy)]
|
||||
pub enum ValueTypeError
|
||||
{
|
||||
Symbol,
|
||||
String,
|
||||
List,
|
||||
}
|
||||
|
||||
/// Error when parsing a `Value` from a stirng.
|
||||
#[derive(Debug)]
|
||||
pub struct ValueParseError(String);
|
||||
|
||||
impl error::Error for ValueParseError{}
|
||||
impl fmt::Display for ValueParseError
|
||||
{
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
|
||||
{
|
||||
write!(f, "cannot parse {:?}", self.0)
|
||||
}
|
||||
}
|
||||
|
||||
impl error::Error for ValueTypeError{}
|
||||
impl fmt::Display for ValueTypeError
|
||||
{
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
|
||||
{
|
||||
write!(f, "type error: expected ")?;
|
||||
match self {
|
||||
Self::Symbol => write!(f, "symbol"),
|
||||
Self::String => write!(f, "string"),
|
||||
Self::List => write!(f, "list"),
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,13 +0,0 @@
|
||||
//! Defined commands
|
||||
use super::*;
|
||||
|
||||
use env::*;
|
||||
use command::*;
|
||||
|
||||
/// Contains all operations
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Operations
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
Loading…
Reference in new issue