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duplicate token

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This commit is contained in:
Noro 2025-05-06 15:03:34 -04:00
parent 4d7f5ce8ad
commit 9cc45d4a2f
2 changed files with 7 additions and 7 deletions
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4
Cargo.lock generated
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@ -1,7 +1,7 @@
# This file is automatically @generated by Cargo. # This file is automatically @generated by Cargo.
# It is not intended for manual editing. # It is not intended for manual editing.
version = 3 version = 4
[[package]] [[package]]
name = "fddl" name = "fddl"
version = "0.0.3" version = "0.0.2"

10
src/parser/parser.rs
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@ -51,11 +51,12 @@ impl Parser {
fn parse_variable_declaration(&mut self) -> Option<Statement> { fn parse_variable_declaration(&mut self) -> Option<Statement> {
// Assuming 'let' token is already consumed by match_token // Assuming 'let' token is already consumed by match_token
let token = self.peek_and_advance().cloned(); // Need a way to get the identifier token // peek_and_advance() returns Option<Token>, which is what we want.
let token_option = self.peek_and_advance();
if let Some(Token::Identifier(name)) = token { if let Some(Token::Identifier(name)) = token_option {
let initializer = if self.match_token(Token::Equal) { let initializer = if self.match_token(Token::Equal) {
self.parse_expression() // Needs implemented parse_expression self.parse_expression()
} else { } else {
None None
}; };
@ -63,13 +64,12 @@ impl Parser {
if self.match_token(Token::Semicolon) { if self.match_token(Token::Semicolon) {
Some(Statement::VariableDeclaration(name, initializer)) Some(Statement::VariableDeclaration(name, initializer))
} else { } else {
// Error: Missing semicolon
eprintln!("Error: Expected ';' after variable declaration."); eprintln!("Error: Expected ';' after variable declaration.");
None None
} }
} else { } else {
eprintln!("Error: Expected variable name after 'let'."); eprintln!("Error: Expected variable name after 'let'.");
// Potentially consume tokens until next semicolon or brace to recover? // If token_option was None or not an Identifier, this branch is taken.
None None
} }
} }