use crate::common::*; #[derive(Debug, PartialEq)] pub(crate) struct CompilationError<'src> { pub(crate) token: Token<'src>, pub(crate) kind: CompilationErrorKind<'src>, } impl Error for CompilationError<'_> {} impl Display for CompilationError<'_> { fn fmt(&self, f: &mut Formatter) -> Result<(), fmt::Error> { use CompilationErrorKind::*; let message = Color::fmt(f).message(); write!(f, "{}", message.prefix())?; match &self.kind { AliasShadowsRecipe { alias, recipe_line } => { writeln!( f, "Alias `{}` defined on line {} shadows recipe `{}` defined on line {}", alias, self.token.line.ordinal(), alias, recipe_line.ordinal(), )?; }, CircularRecipeDependency { recipe, ref circle } => if circle.len() == 2 { writeln!(f, "Recipe `{}` depends on itself", recipe)?; } else { writeln!( f, "Recipe `{}` has circular dependency `{}`", recipe, circle.join(" -> ") )?; }, CircularVariableDependency { variable, ref circle, } => if circle.len() == 2 { writeln!(f, "Variable `{}` is defined in terms of itself", variable)?; } else { writeln!( f, "Variable `{}` depends on its own value: `{}`", variable, circle.join(" -> ") )?; }, InvalidEscapeSequence { character } => { let representation = match character { '`' => r"\`".to_owned(), '\\' => r"\".to_owned(), '\'' => r"'".to_owned(), '"' => r#"""#.to_owned(), _ => character.escape_default().collect(), }; writeln!(f, "`\\{}` is not a valid escape sequence", representation)?; }, DeprecatedEquals => { writeln!( f, "`=` in assignments, exports, and aliases has been phased out on favor of `:=`" )?; writeln!( f, "Please see this issue for more details: https://github.com/casey/just/issues/379" )?; }, DuplicateParameter { recipe, parameter } => { writeln!( f, "Recipe `{}` has duplicate parameter `{}`", recipe, parameter )?; }, DuplicateVariable { variable } => { writeln!(f, "Variable `{}` has multiple definitions", variable)?; }, UnexpectedToken { ref expected, found, } => { writeln!(f, "Expected {}, but found {}", List::or(expected), found)?; }, DuplicateAlias { alias, first } => { writeln!( f, "Alias `{}` first defined on line {} is redefined on line {}", alias, first.ordinal(), self.token.line.ordinal(), )?; }, DuplicateRecipe { recipe, first } => { writeln!( f, "Recipe `{}` first defined on line {} is redefined on line {}", recipe, first.ordinal(), self.token.line.ordinal() )?; }, DuplicateSet { setting, first } => { writeln!( f, "Setting `{}` first set on line {} is redefined on line {}", setting, first.ordinal(), self.token.line.ordinal(), )?; }, DependencyArgumentCountMismatch { dependency, found, min, max, } => { write!( f, "Dependency `{}` got {} {} but takes ", dependency, found, Count("argument", *found), )?; if min == max { let expected = min; writeln!(f, "{} {}", expected, Count("argument", *expected))?; } else if found < min { writeln!(f, "at least {} {}", min, Count("argument", *min))?; } else { writeln!(f, "at most {} {}", max, Count("argument", *max))?; } }, ExpectedKeyword { expected, found } => writeln!( f, "Expected keyword {} but found identifier `{}`", List::or_ticked(expected), found )?, ParameterShadowsVariable { parameter } => { writeln!( f, "Parameter `{}` shadows variable of the same name", parameter )?; }, RequiredParameterFollowsDefaultParameter { parameter } => { writeln!( f, "Non-default parameter `{}` follows default parameter", parameter )?; }, ParameterFollowsVariadicParameter { parameter } => { writeln!(f, "Parameter `{}` follows variadic parameter", parameter)?; }, MixedLeadingWhitespace { whitespace } => { writeln!( f, "Found a mix of tabs and spaces in leading whitespace: `{}`\nLeading whitespace may \ consist of tabs or spaces, but not both", ShowWhitespace(whitespace) )?; }, ExtraLeadingWhitespace => { writeln!(f, "Recipe line has extra leading whitespace")?; }, FunctionArgumentCountMismatch { function, found, expected, } => { writeln!( f, "Function `{}` called with {} {} but takes {}", function, found, Count("argument", *found), expected )?; }, InconsistentLeadingWhitespace { expected, found } => { writeln!( f, "Recipe line has inconsistent leading whitespace. Recipe started with `{}` but found \ line with `{}`", ShowWhitespace(expected), ShowWhitespace(found) )?; }, UnknownAliasTarget { alias, target } => { writeln!(f, "Alias `{}` has an unknown target `{}`", alias, target)?; }, UnknownDependency { recipe, unknown } => { writeln!( f, "Recipe `{}` has unknown dependency `{}`", recipe, unknown )?; }, UndefinedVariable { variable } => { writeln!(f, "Variable `{}` not defined", variable)?; }, UnknownFunction { function } => { writeln!(f, "Call to unknown function `{}`", function)?; }, UnknownSetting { setting } => { writeln!(f, "Unknown setting `{}`", setting)?; }, UnexpectedCharacter { expected } => { writeln!(f, "Expected character `{}`", expected)?; }, UnknownStartOfToken => { writeln!(f, "Unknown start of token:")?; }, MismatchedClosingDelimiter { open, open_line, close, } => { writeln!( f, "Mismatched closing delimiter `{}`. (Did you mean to close the `{}` on line {}?)", close.close(), open.open(), open_line.ordinal(), )?; }, UnexpectedClosingDelimiter { close } => { writeln!(f, "Unexpected closing delimiter `{}`", close.close())?; }, UnpairedCarriageReturn => { writeln!(f, "Unpaired carriage return")?; }, UnterminatedInterpolation => { writeln!(f, "Unterminated interpolation")?; }, UnterminatedString => { writeln!(f, "Unterminated string")?; }, UnterminatedBacktick => { writeln!(f, "Unterminated backtick")?; }, Internal { ref message } => { writeln!( f, "Internal error, this may indicate a bug in just: {}\n\ consider filing an issue: https://github.com/casey/just/issues/new", message )?; }, } write!(f, "{}", message.suffix())?; self.token.write_context(f, Color::fmt(f).error()) } }