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use crate::*;
pub struct SyntacticToken {
pub source: SourceSpan,
pub variant: SyntacticTokenVariant,
}
pub enum SyntacticTokenVariant {
LabelDefinition(String),
MacroDefinition(String),
MacroDefinitionTerminator,
IntegerLiteral(isize),
PackedBinaryLiteral(PackedBinaryLiteral),
PinnedAddress(usize),
Expression(Expression),
BlockOpen,
BlockClose,
Separator,
Symbol(String),
Error(SyntacticParseError),
}
#[derive(Debug)]
pub enum SyntacticParseError {
InvalidHexadecimalLiteral(String),
InvalidDecimalLiteral(String),
InvalidSymbolIdentifier(String),
UnterminatedComment,
UnterminatedExpression,
LabelInMacroDefinition,
}
impl std::fmt::Debug for SyntacticToken {
fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
use SyntacticTokenVariant::*;
let start = &self.source.in_merged;
let name = match &self.variant {
LabelDefinition(name) => format!("LabelDefinition({name})"),
MacroDefinition(name) => format!("MacroDefinition({name})"),
MacroDefinitionTerminator => format!("MacroDefinitionTerminator"),
IntegerLiteral(value) => format!("IntegerLiteral({value})"),
PackedBinaryLiteral(pbl) => format!("PackedBinaryLiteral({pbl})"),
PinnedAddress(value) => format!("PinnedAddress({value})"),
Expression(expr) => format!("Expression({expr:?})"),
BlockOpen => format!("BlockOpen"),
BlockClose => format!("BlockClose"),
Separator => format!("Separator"),
Symbol(name) => format!("Symbol({name})"),
Error(error) => format!("Error({error:?})"),
};
write!(f, "{start} {name}")
}
}
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