CHANGELOG.md

@@ -15,7 +15,6 @@
 - Watch mode
 - Formatter
 - Simple language server
-- Decide how to handle comments in the syntax (?)
 
 ## v0.0.10
 
@@ -25,8 +24,8 @@
 
 - [x] Hand-make CLI, remove clap
 - [x] Compile a single file
-- [x] Display error messages during compilation instead of panicking
+- [ ] Display error messages during compilation instead of panicking
-- [x] Improve error messages
+- [ ] Improve errror messages
 - [ ] Implement code generation for ast nodes implemented as of now
 
 

src/codegen/block.rs

@@ -1,14 +0,0 @@
-use crate::syntax::ast::Block;
-
-use super::Transpilable;
-
-impl Transpilable for Block {
-    fn transpile(&self) -> String {
-        // TODO: Handle indentation
-        self.statements
-            .iter()
-            .map(|x| x.transpile())
-            .collect::<Vec<_>>()
-            .join("\n")
-    }
-}

src/codegen/function_declaration.rs

@@ -4,11 +4,7 @@ use super::Transpilable;
 
 impl Transpilable for FunctionDeclaration {
     fn transpile(&self) -> String {
-        format!(
+        format!("function {}() {{}}", self.identifier)
-            "function {}() {{\n{}\n}}",
-            self.identifier,
-            self.block.transpile()
-        )
     }
 }
 

src/codegen/mod.rs

@@ -1,11 +1,9 @@
 use crate::syntax::ast::ModuleAST;
 
 mod binding;
-mod block;
 mod expression;
 mod function_declaration;
 mod module_ast;
-mod statement;
 mod top_level_construct;
 
 /// Trait that the AST and its nodes implement to support transformation to PHP

src/codegen/module_ast.rs

@@ -11,7 +11,7 @@ impl Transpilable for ModuleAST {
             .map(|binding| binding.transpile())
             .collect();
 
-        format!("<?php\n\n{}\n", bindings_str.join("\n"))
+        bindings_str.join("\n")
     }
 }
 

src/codegen/statement.rs

@@ -1,9 +0,0 @@
-use crate::syntax::ast::statement::Statement;
-
-use super::Transpilable;
-
-impl Transpilable for Statement {
-    fn transpile(&self) -> String {
-        String::from("// TODO (statement)")
-    }
-}

src/error_handling/syntax_error.rs

@@ -1,29 +1,22 @@
-use super::{PrintableError, SyntaxError};
 use std::collections::VecDeque;
 
+use super::{PrintableError, SyntaxError};
+
 impl PrintableError for SyntaxError {
     fn get_error_str(&self, chars: &Vec<char>) -> String {
         let (line, before, length) = get_line(chars, self.error_start, self.error_end);
 
-        let line_number = get_line_number(chars, self.error_start);
-        let line_number_whitespace = " ".repeat(line_number.to_string().len());
-
         let whitespace = vec![' '; before].iter().collect::<String>();
         let indicator = vec!['^'; length].iter().collect::<String>();
-        let reason = &self.reason;
 
         format!(
-            r#"
+            "\n{}\n{}{}\n\n{}{}{}\n{}",
-{line_number_whitespace} |
+            line, whitespace, indicator, "Syntax error at pos ", self.error_start, ":", self.reason
-{line_number           } | {line}
-{line_number_whitespace} | {whitespace}{indicator}
-
-{reason} at line {line_number}:{before}"#,
         )
     }
 }
 
-/// Extracts a line of code
+/// Extracts a lin e of code
 ///
 /// - `chars`: Input where to extract the line from
 /// - `start_position`: Position where the erroneous code starts
@@ -97,22 +90,6 @@ fn get_line(
     )
 }
 
-fn get_line_number(chars: &Vec<char>, target_pos: usize) -> usize {
-    let mut count = 1;
-
-    for (pos, char) in chars.iter().enumerate() {
-        if pos >= target_pos {
-            break;
-        }
-
-        if *char == '\n' {
-            count += 1;
-        }
-    }
-
-    count
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;

src/lexic/mod.rs

@@ -449,12 +449,4 @@ mod indentation_tests {
         assert_eq!(TokenType::DEDENT, tokens[8].token_type);
         assert_eq!(TokenType::EOF, tokens[9].token_type);
     }
-
-    #[test]
-    fn should_lex_comments() {
-        let input = String::from("// ??");
-        let tokens = get_tokens(&input).unwrap();
-
-        assert_eq!(TokenType::Comment, tokens[0].token_type);
-    }
 }

src/syntax/ast/mod.rs

@@ -18,7 +18,6 @@ pub enum TopLevelDeclaration {
 pub struct FunctionDeclaration {
     pub identifier: Box<String>,
     pub params_list: Box<ParamsList>,
-    pub block: Box<Block>,
 }
 
 #[derive(Debug)]

src/syntax/functions/function_declaration.rs

@@ -64,7 +64,7 @@ pub fn try_parse<'a>(tokens: &'a Vec<Token>, pos: usize) -> ParseResult<Function
     };
     current_pos = next_pos;
 
-    let (block, next_pos) = match parse_block(tokens, current_pos) {
+    let (_block, next_pos) = match parse_block(tokens, current_pos) {
         ParseResult::Ok(block, next_pos) => (block, next_pos),
         ParseResult::Err(error) => {
             return ParseResult::Err(error);
@@ -91,7 +91,6 @@ pub fn try_parse<'a>(tokens: &'a Vec<Token>, pos: usize) -> ParseResult<Function
         FunctionDeclaration {
             identifier: Box::new(identifier.value.clone()),
             params_list: Box::new(params_list),
-            block: Box::new(block),
         },
         current_pos,
     )