#[derive(Debug, Clone)]
pub enum DiagnosticMessage {
FractionAfterNumeric,
NoDigitsAfterDot,
UnknownTypeOfPercentString,
NumericLiteralWithoutDigits,
UnterminatedList,
UnterminatedRegexp,
UnterminatedString,
UnterminatedQuotedString,
InvalidUnicodeEscape,
TooLargeUnicodeCodepoint,
InvalidUnicodeCodepoint,
MultipleCodepointAtSingleChar,
InvalidEscapeCharacter,
InvalidHexEscape,
UnterminatedHeredoc(String),
UnterminatedHeredocId,
SlashRAtMiddleOfLine,
DStarInterpretedAsArgPrefix,
StarInterpretedAsArgPrefix,
AmpersandInterpretedAsArgPrefix,
TripleDotAtEol,
ParenthesesIterpretedAsArglist,
AmbiguousFirstArgument {
operator: u8,
},
AmbiguousOperator {
operator: &'static str,
interpreted_as: &'static str,
},
InvalidCharacterSyntax {
suggestion: String,
},
InvalidOctalDigit,
TrailingCharInNumber {
c: u8,
},
EmbeddedDocumentMeetsEof,
InvalidChar(u8),
IncompleteCharacterSyntax,
GvarWithoutId,
InvalidGvarName(u8),
IvarWithoutId,
InvalidIvarName(u8),
CvarWithoutId,
InvalidCvarName(u8),
UnknownRegexOptions(String),
UnterminatedUnicodeEscape,
EncodingError(String),
AmbiguousTernaryOperator(String),
ElseWithoutRescue,
BeginNotAtTopLevel,
AliasNthRef,
CsendInsideMasgn,
ClassOrModuleNameMustBeConstant,
EndlessSetterDefinition,
UnexpectedToken(String),
ClassDefinitionInMethodBody,
ModuleDefinitionInMethodBody,
InvalidReturnInClassOrModuleBody,
ConstArgument,
IvarArgument,
GvarArgument,
CvarArgument,
NoSuchLocalVariable(String),
OrdinaryParamDefined,
NumparamUsed,
TokAtEolWithoutExpression(String),
EndInMethod,
ComparisonAfterComparison(String),
CircularArgumentReference(String),
DynamicConstantAssignment,
CantAssignToSelf,
CantAssignToNil,
CantAssignToTrue,
CantAssignToFalse,
CantAssignToFile,
CantAssignToLine,
CantAssignToEncoding,
CantAssignToNumparam(String),
CantSetVariable(String),
BlockGivenToYield,
BlockAndBlockArgGiven,
SymbolLiteralWithInterpolation,
ReservedForNumparam(String),
KeyMustBeValidAsLocalVariable,
DuplicateVariableName,
DuplicateKeyName,
SingletonLiteral,
NthRefIsTooBig(String),
DuplicatedArgumentName,
RegexError(String),
InvalidSymbol(String),
VoidValueExpression,
}
impl DiagnosticMessage {
pub fn render(&self) -> String {
match self {
Self::FractionAfterNumeric => {
"unexpected fraction part after numeric literal".to_owned()
}
Self::NoDigitsAfterDot => {
"no .<digit> floating literal anymore; put 0 before dot".to_owned()
}
Self::UnknownTypeOfPercentString => "unknown type of %string".to_owned(),
Self::NumericLiteralWithoutDigits => "numeric literal without digits".to_owned(),
Self::UnterminatedList => "unterminated list meets end of file".to_owned(),
Self::UnterminatedRegexp => "unterminated regexp meets end of file".to_owned(),
Self::UnterminatedString => "unterminated string meets end of file".to_owned(),
Self::UnterminatedQuotedString => "unterminated quoted string meets end of file".to_owned(),
Self::InvalidUnicodeEscape => "invalid Unicode escape".to_owned(),
Self::TooLargeUnicodeCodepoint => "invalid Unicode codepoint (too large)".to_owned(),
Self::InvalidUnicodeCodepoint => "invalid Unicode codepoint".to_owned(),
Self::MultipleCodepointAtSingleChar => {
"Multiple codepoints at single character literal".to_owned()
}
Self::InvalidEscapeCharacter => "Invalid escape character syntax".to_owned(),
Self::InvalidHexEscape => "invalid hex escape".to_owned(),
Self::UnterminatedHeredoc(id) => format!("can't find string \"{}\" anywhere before EOF", id),
Self::UnterminatedHeredocId => "unterminated here document identifier".to_owned(),
Self::SlashRAtMiddleOfLine => {
"encountered \\r in middle of line, treated as a mere space".to_owned()
}
Self::DStarInterpretedAsArgPrefix => "`**' interpreted as argument prefix".to_owned(),
Self::StarInterpretedAsArgPrefix => "`*' interpreted as argument prefix".to_owned(),
Self::AmpersandInterpretedAsArgPrefix => "`&' interpreted as argument prefix".to_owned(),
Self::TripleDotAtEol => "... at EOL, should be parenthesized?".to_owned(),
Self::ParenthesesIterpretedAsArglist => "parentheses after method name is interpreted as an argument list, not a decomposed argument".to_owned(),
Self::AmbiguousFirstArgument { operator} => format!(
"ambiguous first argument; put parentheses or a space even after `{}' operator",
*operator as char
),
Self::AmbiguousOperator { operator, interpreted_as } => format!("`{}' after local variable or literal is interpreted as binary operator even though it seems like {}", operator, interpreted_as),
Self::InvalidCharacterSyntax { suggestion } => format!("invalid character syntax; use {}", suggestion),
Self::InvalidOctalDigit => "Invalid octal digit".to_owned(),
Self::TrailingCharInNumber { c } => format!("trailing `{}' in number", *c as char),
Self::EmbeddedDocumentMeetsEof => "embedded document meets end of file".to_owned(),
Self::InvalidChar(byte) => format!("Invalid char `{}' in expression", *byte as char),
Self::IncompleteCharacterSyntax => "incomplete character syntax".to_owned(),
Self::GvarWithoutId => "`$' without identifiers is not allowed as a global variable name".to_owned(),
Self::InvalidGvarName(name) => format!("`${}' is not allowed as a global variable name", *name as char),
Self::IvarWithoutId => "`@' without identifiers is not allowed as an instance variable name".to_owned(),
Self::InvalidIvarName(name) => format!("`@{}' is not allowed as an instance variable name", *name as char),
Self::CvarWithoutId => "`@@' without identifiers is not allowed as a class variable name".to_owned(),
Self::InvalidCvarName(name) => format!("`@@{}' is not allowed as a class variable name", *name as char),
Self::UnknownRegexOptions(options) => format!("unknown regexp options - {}", options),
Self::AmbiguousTernaryOperator(pre) => format!("`?' just followed by `{}' is interpreted as a conditional operator, put a space after `?'", pre),
Self::UnterminatedUnicodeEscape => "unterminated Unicode escape".to_owned(),
Self::EncodingError(err) => format!("encoding error: {}", err),
Self::ElseWithoutRescue => "else without rescue is useless".to_owned(),
Self::BeginNotAtTopLevel => "BEGIN is permitted only at toplevel".to_owned(),
Self::AliasNthRef => "can't make alias for the number variables".to_owned(),
Self::CsendInsideMasgn => "&. inside multiple assignment destination".to_owned(),
Self::ClassOrModuleNameMustBeConstant => "class/module name must be CONSTANT".to_owned(),
Self::EndlessSetterDefinition => "setter method cannot be defined in an endless method definition".to_owned(),
Self::UnexpectedToken(tok) => format!("unexpected {}", tok),
Self::ClassDefinitionInMethodBody => "class definition in method body".to_owned(),
Self::ModuleDefinitionInMethodBody => "module definition in method body".to_owned(),
Self::InvalidReturnInClassOrModuleBody => "Invalid return in class/module body".to_owned(),
Self::ConstArgument => "formal argument cannot be a constant".to_owned(),
Self::IvarArgument => "formal argument cannot be an instance variable".to_owned(),
Self::GvarArgument => "formal argument cannot be a global variable".to_owned(),
Self::CvarArgument => "formal argument cannot be a class variable".to_owned(),
Self::NoSuchLocalVariable(name) => format!("{}: no such local variable", name),
Self::OrdinaryParamDefined => "ordinary parameter is defined".to_owned(),
Self::NumparamUsed => "numbered parameter is already used".to_owned(),
Self::TokAtEolWithoutExpression(tok) => format!("`{}' at the end of line without an expression", tok),
Self::EndInMethod => "END in method; use at_exit".to_owned(),
Self::ComparisonAfterComparison(op) => format!("comparison '{}' after comparison", op),
Self::CircularArgumentReference(name) => format!("circular argument reference - {}", name),
Self::DynamicConstantAssignment => "dynamic constant assignment".to_owned(),
Self::CantAssignToSelf => "Can't change the value of self".to_owned(),
Self::CantAssignToNil => "Can't assign to nil".to_owned(),
Self::CantAssignToTrue => "Can't assign to true".to_owned(),
Self::CantAssignToFalse => "Can't assign to false".to_owned(),
Self::CantAssignToFile => "Can't assign to __FILE__".to_owned(),
Self::CantAssignToLine => "Can't assign to __LINE__".to_owned(),
Self::CantAssignToEncoding => "Can't assign to __ENCODING__".to_owned(),
Self::CantAssignToNumparam(name) => format!("Can't assign to numbered parameter {}", name),
Self::CantSetVariable(name) => format!("Can't set variable {}", name),
Self::BlockGivenToYield => "block given to yield".to_owned(),
Self::BlockAndBlockArgGiven => "both block arg and actual block given".to_owned(),
Self::SymbolLiteralWithInterpolation => "symbol literal with interpolation is not allowed".to_owned(),
Self::ReservedForNumparam(name) => format!("{} is reserved for numbered parameter", name),
Self::KeyMustBeValidAsLocalVariable => "key must be valid as local variables".to_owned(),
Self::DuplicateVariableName => "duplicated variable name".to_owned(),
Self::DuplicateKeyName => "duplicated key name".to_owned(),
Self::SingletonLiteral => "can't define singleton method for literals".to_owned(),
Self::NthRefIsTooBig(n) => format!("`{}' is too big for a number variable, always nil", n),
Self::DuplicatedArgumentName => "duplicated argument name".to_owned(),
Self::RegexError(message) => message.to_owned(),
Self::InvalidSymbol(encoding) => format!("invalid symbol in encoding {}", encoding),
Self::VoidValueExpression => "void value expression".to_owned(),
}
}
}