src/syntax.rs

@@ -54,7 +54,7 @@ use std::str::FromStr;
 use thiserror::Error;
 
 /// One of the many errors that can occur when processing text input.
-/// 
+///
 /// If you get one of these and want to display it to the user, we strongly
 /// suggest using the [`From`] implementation to turn this into a [`Diagnostic`],
 /// and then printing it via [`codespan_reporting`].
@@ -98,7 +98,7 @@ pub enum ParserError {
 impl ParserError {
     /// Convert one of lalrpop's parser errors into one of our own, which we can more
     /// easily implement translation into [`Diagnostic`].
-    /// 
+    ///
     /// This function is relatively straightforward, because we match the errors pretty
     /// closely. The major thing we do here is convert [`lalrpop`]'s notion of a location,
     /// which is just an offset that it got from the lexer, into an actual location that
@@ -227,7 +227,7 @@ impl<'a> From<&'a ParserError> for Diagnostic<usize> {
 
 impl Program {
     /// Parse the given file, adding it to the database as part of the process.
-    /// 
+    ///
     /// This operation reads the file from disk and adds it to the database for future
     /// reference. If you get an error, we strongly suggest conversion to [`Diagnostic`]
     /// and then reporting it to the user via [`codespan_reporting`]. You should use
@@ -245,7 +245,7 @@ impl Program {
     }
 
     /// Parse a block of text you have in memory, using the given index for [`Location`]s.
-    /// 
+    ///
     /// If you use a nonsensical file index, everything will work fine until you try to
     /// report an error, at which point [`codespan_reporting`] may have some nasty things
     /// to say to you.
@@ -261,7 +261,7 @@ impl Program {
 
 impl Statement {
     /// Parse a statement that you have in memory, using the given index for [`Location`]s.
-    /// 
+    ///
     /// As with [`Program::parse`], if you use a bad file index, you'll get weird behaviors
     /// when you try to print errors, but things should otherwise work fine. This function
     /// will only parse a single statement, which is useful in the REPL, but probably shouldn't

src/syntax/ast.rs

@@ -4,7 +4,7 @@ use crate::syntax::Location;
 pub static BINARY_OPERATORS: &[&str] = &["+", "-", "*", "/"];
 
 /// A structure represented a parsed program.
-/// 
+///
 /// One `Program` is associated with exactly one input file, and the
 /// vector is arranged in exactly the same order as the parsed file.
 /// Because this is the syntax layer, the program is guaranteed to be
@@ -17,13 +17,13 @@ pub struct Program {
 }
 
 /// A parsed statement.
-/// 
+///
 /// Statements are guaranteed to be syntactically valid, but may be
 /// complete nonsense at the semantic level. Which is to say, all the
 /// print statements were correctly formatted, and all the variables
 /// referenced are definitely valid symbols, but they may not have
-/// been defined or anything. 
+/// been defined or anything.
-/// 
+///
 /// Note that equivalence testing on statements is independent of
 /// source location; it is testing if the two statements say the same
 /// thing, not if they are the exact same statement.
@@ -49,7 +49,7 @@ impl PartialEq for Statement {
 }
 
 /// An expression in the underlying syntax.
-/// 
+///
 /// Like statements, these expressions are guaranteed to have been
 /// formatted correctly, but may not actually make any sense. Also
 /// like Statements, the [`PartialEq`] implementation does not take

src/syntax/eval.rs

@@ -5,12 +5,12 @@ use crate::syntax::{Expression, Program, Statement};
 
 impl Program {
     /// Evaluate the program, returning either an error or what it prints out when run.
-    /// 
+    ///
     /// Doing this evaluation is particularly useful for testing, to ensure that if we
     /// modify a program in some way it does the same thing on both sides of the
     /// transformation. It's also sometimes just nice to know what a program will be
     /// doing.
-    /// 
+    ///
     /// Note that the errors here are slightly more strict that we enforce at runtime.
     /// For example, we check for overflow and underflow errors during evaluation, and
     /// we don't check for those in the compiled code.

src/syntax/validate.rs

@@ -3,7 +3,7 @@ use codespan_reporting::diagnostic::Diagnostic;
 use std::collections::HashMap;
 
 /// An error we found while validating the input program.
-/// 
+///
 /// These errors indicate that we should stop trying to compile
 /// the program, because it's just fundamentally broken in a way
 /// that we're not going to be able to work through. As with most
@@ -24,7 +24,7 @@ impl From<Error> for Diagnostic<usize> {
 }
 
 /// A problem we found validating the input that isn't critical.
-/// 
+///
 /// These are things that the user might want to do something about,
 /// but we can keep going without it being a problem. As with most of
 /// these things, if you want to present this information to the user,
@@ -52,10 +52,10 @@ impl From<Warning> for Diagnostic<usize> {
 
 impl Program {
     /// Validate that the program makes semantic sense, not just syntactic sense.
-    /// 
+    ///
     /// This checks for things like references to variables that don't exist, for
     /// example, and generates warnings for things that are inadvisable but not
-    /// actually a problem. 
+    /// actually a problem.
     pub fn validate(&self) -> (Vec<Error>, Vec<Warning>) {
         let mut errors = vec![];
         let mut warnings = vec![];
@@ -73,7 +73,7 @@ impl Program {
 
 impl Statement {
     /// Validate that the statement makes semantic sense, not just syntactic sense.
-    /// 
+    ///
     /// This checks for things like references to variables that don't exist, for
     /// example, and generates warnings for things that are inadvisable but not
     /// actually a problem. Since statements appear in a broader context, you'll