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unary operators
This commit is contained in:
Tristan
parent
4c8d674e0d
commit
bc42cda601
379
clippy.txt
379
clippy.txt
@ -1,379 +0,0 @@
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cargo clippy
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Checking fddl v0.0.3 (/home/noro/Documents/words/rust/fddl)
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warning: unused import: `crate::lexer::Lexer`
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--> src/parser/parser.rs:3:5
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3 | use crate::lexer::Lexer;
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| ^^^^^^^^^^^^^^^^^^^
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= note: `#[warn(unused_imports)]` on by default
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warning: unused variable: `operator_token`
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--> src/parser/parser.rs:222:17
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222 | let operator_token = self.current_token().clone();
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| ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator_token`
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= note: `#[warn(unused_variables)]` on by default
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warning: unused variable: `operator_token`
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--> src/parser/parser.rs:237:17
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237 | let operator_token = self.current_token().clone();
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| ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator_token`
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warning: method `line_comment` is never used
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--> src/lexer/lexer.rs:300:8
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11 | impl Lexer {
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| ---------- method in this implementation
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...
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300 | fn line_comment(&mut self) -> Option<Token>{
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| ^^^^^^^^^^^^
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= note: `#[warn(dead_code)]` on by default
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warning: module has the same name as its containing module
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--> src/lexer/mod.rs:1:1
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1 | pub mod lexer;
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| ^^^^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
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= note: `#[warn(clippy::module_inception)]` on by default
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warning: module has the same name as its containing module
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--> src/parser/mod.rs:2:1
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2 | pub mod parser;
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| ^^^^^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
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warning: unneeded `return` statement
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--> src/parser/parser.rs:42:21
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42 | return None;
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| ^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
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= note: `#[warn(clippy::needless_return)]` on by default
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help: remove `return`
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42 - return None;
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42 + None
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warning: this `if` has identical blocks
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--> src/parser/parser.rs:439:46
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439 | if self.check(&Token::LeftBrace) {
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| ______________________________________________^
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440 | | else_branch_opt = Some(Box::new(self.parse_statement()?));
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441 | | } else if self.check(&Token::If) {
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| |_____________^
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note: same as this
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--> src/parser/parser.rs:441:46
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441 | } else if self.check(&Token::If) {
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| ______________________________________________^
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442 | | else_branch_opt = Some(Box::new(self.parse_statement()?));
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443 | | } else {
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| |_____________^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#if_same_then_else
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= note: `#[warn(clippy::if_same_then_else)]` on by default
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warning: unneeded late initialization
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--> src/parser/parser.rs:539:9
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539 | let increment: Box<Statement>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_late_init
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= note: `#[warn(clippy::needless_late_init)]` on by default
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help: move the declaration `increment` here and remove the assignments from the branches
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539 ~
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540 ~ let increment: Box<Statement> = if self.check(&Token::RightParen) { // Empty increment (if ')' is next)
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541 ~ Box::new(Statement::ExpressionStatement(Expression::Literal(Literal::Nil)))
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542 | } else {
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543 | let incr_expr = self.parse_expression()?; // Now this will see past the comment
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544 ~ Box::new(Statement::ExpressionStatement(incr_expr))
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545 ~ };
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warning: accessing first element with `self.tokens.get(0)`
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--> src/parser/parser.rs:691:14
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691 | self.tokens.get(0).unwrap_or(&Token::EOF)
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| ^^^^^^^^^^^^^^^^^^ help: try: `self.tokens.first()`
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
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= note: `#[warn(clippy::get_first)]` on by default
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warning: you should consider adding a `Default` implementation for `Environment`
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--> src/interpreter/evaluator.rs:35:5
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35 | / pub fn new() -> Self {
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36 | | Environment {
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37 | | values: HashMap::new(),
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38 | | }
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39 | | }
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| |_____^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
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= note: `#[warn(clippy::new_without_default)]` on by default
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help: try adding this
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34 + impl Default for Environment {
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35 + fn default() -> Self {
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36 + Self::new()
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37 + }
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38 + }
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warning: you should consider adding a `Default` implementation for `Evaluator`
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--> src/interpreter/evaluator.rs:73:5
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73 | / pub fn new() -> Self {
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74 | | Evaluator {
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75 | | environment: Environment::new(),
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76 | | }
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77 | | }
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| |_____^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
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help: try adding this
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72 + impl Default for Evaluator {
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73 + fn default() -> Self {
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74 + Self::new()
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75 + }
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76 + }
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warning: `fddl` (lib) generated 12 warnings (run `cargo clippy --fix --lib -p fddl` to apply 5 suggestions)
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warning: unused import: `parser::*`
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--> src/parser/mod.rs:5:9
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5 | pub use parser::*;
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| ^^^^^^^^^
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warning: unused import: `std::fs`
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--> src/main.rs:6:5
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6 | use std::fs;
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| ^^^^^^^
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warning: unused import: `self`
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--> src/main.rs:7:15
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7 | use std::io::{self, Write};
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| ^^^^
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warning: unused import: `Expression`
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--> src/main.rs:12:36
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12 | use fddl::parser::ast::{Statement, Expression};
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| ^^^^^^^^^^
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warning: function `run` is never used
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--> src/main.rs:84:4
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84 | fn run(source: String) {
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| ^^^
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= note: `#[warn(dead_code)]` on by default
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warning: multiple associated items are never used
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--> src/lexer/lexer.rs:12:12
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11 | impl Lexer {
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| ---------- associated items in this implementation
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12 | pub fn new(source: String) -> Self {
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| ^^^
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...
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21 | pub fn scan_tokens(&mut self) -> Vec<Token> {
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| ^^^^^^^^^^^
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...
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40 | fn scan_token(&mut self) -> Option<Token> {
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| ^^^^^^^^^^
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...
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137 | fn consume_block_comment(&mut self) -> Option<Token> {
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| ^^^^^^^^^^^^^^^^^^^^^
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...
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165 | fn advance(&mut self) -> char {
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| ^^^^^^^
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...
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174 | fn match_char(&mut self, expected: char) -> bool {
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| ^^^^^^^^^^
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...
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187 | fn peek(&self) -> char {
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| ^^^^
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...
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195 | fn peek_next(&self) -> char {
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| ^^^^^^^^^
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...
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203 | fn is_at_end(&self) -> bool {
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| ^^^^^^^^^
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...
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207 | fn string(&mut self) -> Option<Token> {
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| ^^^^^^
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...
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231 | fn number(&mut self) -> Option<Token> {
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| ^^^^^^
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...
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254 | fn identifier(&mut self) -> Option<Token> {
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| ^^^^^^^^^^
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...
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291 | fn is_alpha(&self, c: char) -> bool {
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| ^^^^^^^^
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...
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295 | fn is_alphanumeric(&self, c: char) -> bool {
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| ^^^^^^^^^^^^^^^
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...
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300 | fn line_comment(&mut self) -> Option<Token>{
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| ^^^^^^^^^^^^
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warning: multiple variants are never constructed
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--> src/lexer/token.rs:9:5
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2 | pub enum Token {
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| ----- variants in this enum
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...
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9 | Dot, // .
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| ^^^
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10 | Minus, // -
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| ^^^^^
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11 | Plus, // +
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| ^^^^
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12 | Semicolon, // ;
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13 | Slash, // /
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| ^^^^^
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14 | Star, // *
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| ^^^^
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15 | Percent, // %
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| ^^^^^^^
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16 | Equal, // =
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17 | BangEqual, // !=
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| ^^^^^^^^^
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18 | EqualEqual, // ==
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| ^^^^^^^^^^
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19 | Greater, // >
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| ^^^^^^^
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20 | GreaterEqual, // >=
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| ^^^^^^^^^^^^
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21 | Less, // <
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| ^^^^
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22 | LessEqual, // <=
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| ^^^^^^^^^
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23 | Tilde, // ~
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| ^^^^^
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24 | TildeEqual, // ~=
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| ^^^^^^^^^^
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...
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27 | Identifier(String),
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| ^^^^^^^^^^
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28 | StringLiteral(String),
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| ^^^^^^^^^^^^^
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29 | Number(f64),
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| ^^^^^^
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...
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32 | And,
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| ^^^
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33 | Or,
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| ^^
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...
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36 | True,
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| ^^^^
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37 | False,
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| ^^^^^
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38 | Nil,
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| ^^^
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39 | Let,
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40 | Const,
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| ^^^^^
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...
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46 | Pub,
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| ^^^
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47 | Sym,
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| ^^^
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48 | Module,
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| ^^^^^^
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49 | Import,
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| ^^^^^^
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50 | Some,
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| ^^^^
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51 | Not,
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| ^^^
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...
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54 | Comment(String),
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| ^^^^^^^
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...
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57 | Error(String),
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| ^^^^^
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= note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
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warning: name `EOF` contains a capitalized acronym
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--> src/lexer/token.rs:59:5
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59 | EOF,
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| ^^^ help: consider making the acronym lowercase, except the initial letter (notice the capitalization): `Eof`
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
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= note: `#[warn(clippy::upper_case_acronyms)]` on by default
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warning: variant name ends with the enum's name
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--> src/parser/ast.rs:57:5
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57 | ExpressionStatement(Expression),
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
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= note: `#[warn(clippy::enum_variant_names)]` on by default
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warning: variant name ends with the enum's name
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--> src/parser/ast.rs:58:5
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58 | PrintStatement(Expression),
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
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warning: variant name ends with the enum's name
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--> src/parser/ast.rs:61:5
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61 | IfStatement(Expression, Box<Statement>, Option<Box<Statement>>),
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
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warning: variant name ends with the enum's name
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--> src/parser/ast.rs:62:5
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62 | WhileStatement(Expression, Box<Statement>),
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
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warning: variant name ends with the enum's name
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--> src/parser/ast.rs:63:5
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63 | ForStatement(Box<Statement>, Expression, Box<Statement>, Box<Statement>),
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
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warning: variant name ends with the enum's name
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--> src/parser/ast.rs:69:5
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69 | ReturnStatement(Option<Expression>),
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
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warning: `fddl` (bin "fddl") generated 23 warnings (9 duplicates) (run `cargo clippy --fix --bin "fddl"` to apply 4 suggestions)
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Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
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noro@saturn:~/Documents/words/rust/fddl$
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@ -83,6 +83,14 @@ impl Evaluator {
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Ok(())
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Ok(())
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}
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}
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||||||
|
fn is_truthy(value: &FddlValue) -> bool {
|
||||||
|
match value {
|
||||||
|
FddlValue::Boolean(false) => false,
|
||||||
|
FddlValue::Nil => false,
|
||||||
|
_ => true,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
fn evaluate_statement(&mut self, statement: &Statement) -> Result<(), RuntimeError> {
|
fn evaluate_statement(&mut self, statement: &Statement) -> Result<(), RuntimeError> {
|
||||||
match statement {
|
match statement {
|
||||||
Statement::PrintStatement(expr) => {
|
Statement::PrintStatement(expr) => {
|
||||||
@ -149,6 +157,7 @@ impl Evaluator {
|
|||||||
))
|
))
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
Operator::Not => {
|
Operator::Not => {
|
||||||
if let FddlValue::Boolean(b) = right_val {
|
if let FddlValue::Boolean(b) = right_val {
|
||||||
Ok(FddlValue::Boolean(!b))
|
Ok(FddlValue::Boolean(!b))
|
||||||
@ -158,12 +167,14 @@ impl Evaluator {
|
|||||||
))
|
))
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
Operator::Some => {
|
Operator::Some => {
|
||||||
Ok(right_val)
|
Ok(FddlValue::Boolean(!matches!(right_val, FddlValue::Nil)))
|
||||||
}
|
}
|
||||||
|
|
||||||
Operator::Almost => {
|
Operator::Almost => {
|
||||||
if let FddlValue::Number(n) = right_val {
|
if let FddlValue::Number(n) = right_val {
|
||||||
Ok(FddlValue::Number(n.round()))
|
Ok(FddlValue::Number(n.floor()))
|
||||||
} else {
|
} else {
|
||||||
Err(RuntimeError::TypeMismatch(
|
Err(RuntimeError::TypeMismatch(
|
||||||
"Operand for unary '~' (Almost) must be a number for this example.".to_string(),
|
"Operand for unary '~' (Almost) must be a number for this example.".to_string(),
|
||||||
@ -182,6 +193,12 @@ impl Evaluator {
|
|||||||
let right_val = self.evaluate_expression(right_expr)?;
|
let right_val = self.evaluate_expression(right_expr)?;
|
||||||
|
|
||||||
match op {
|
match op {
|
||||||
|
Operator::EqualEqual => { // For ==
|
||||||
|
Ok(FddlValue::Boolean(left_val == right_val))
|
||||||
|
}
|
||||||
|
Operator::NotEqual => { // For !=
|
||||||
|
Ok(FddlValue::Boolean(left_val != right_val))
|
||||||
|
}
|
||||||
Operator::Plus => {
|
Operator::Plus => {
|
||||||
if let (FddlValue::Number(l), FddlValue::Number(r)) = (&left_val, &right_val) {
|
if let (FddlValue::Number(l), FddlValue::Number(r)) = (&left_val, &right_val) {
|
||||||
Ok(FddlValue::Number(l + r))
|
Ok(FddlValue::Number(l + r))
|
||||||
@ -235,6 +252,42 @@ impl Evaluator {
|
|||||||
))
|
))
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
Operator::Greater => {
|
||||||
|
if let (FddlValue::Number(l), FddlValue::Number(r)) = (&left_val, &right_val) {
|
||||||
|
Ok(FddlValue::Boolean(l > r))
|
||||||
|
} else {
|
||||||
|
Err(RuntimeError::TypeMismatch(
|
||||||
|
"Operands for '>' must be numbers.".to_string()
|
||||||
|
))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Operator::GreaterEqual => {
|
||||||
|
if let (FddlValue::Number(l), FddlValue::Number(r)) = (&left_val, &right_val) {
|
||||||
|
Ok(FddlValue::Boolean(l >= r))
|
||||||
|
} else {
|
||||||
|
Err(RuntimeError::TypeMismatch(
|
||||||
|
"Operands for '>=' must be numbers.".to_string()
|
||||||
|
))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Operator::Less => {
|
||||||
|
if let (FddlValue::Number(l), FddlValue::Number(r)) = (&left_val, &right_val) {
|
||||||
|
Ok(FddlValue::Boolean(l < r))
|
||||||
|
} else {
|
||||||
|
Err(RuntimeError::TypeMismatch(
|
||||||
|
"Operands for '<' must be numbers.".to_string()
|
||||||
|
))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Operator::LessEqual => {
|
||||||
|
if let (FddlValue::Number(l), FddlValue::Number(r)) = (&left_val, &right_val) {
|
||||||
|
Ok(FddlValue::Boolean(l <= r))
|
||||||
|
} else {
|
||||||
|
Err(RuntimeError::TypeMismatch(
|
||||||
|
"Operands for '<=' must be numbers.".to_string()
|
||||||
|
))
|
||||||
|
}
|
||||||
|
}
|
||||||
_ => Err(RuntimeError::TypeMismatch(format!(
|
_ => Err(RuntimeError::TypeMismatch(format!(
|
||||||
"Unsupported binary operator {:?}.",
|
"Unsupported binary operator {:?}.",
|
||||||
op
|
op
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user