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use crate::*;
/// The entire semantic program, ready to generate bytecode.
pub struct Program {
pub definitions: Vec<Definition>,
pub invocations: Vec<Invocation>,
pub errors: Vec<ParseError>,
}
/// A symbol definition.
pub struct Definition {
pub name: String,
pub source: SourceSpan,
pub arguments: Vec<ArgumentDefinition>,
pub variant: DefinitionVariant,
}
pub struct ArgumentDefinition {
pub name: String,
pub source: SourceSpan,
pub variant: ArgumentDefinitionVariant,
}
pub enum ArgumentDefinitionVariant {
Integer,
Block,
}
pub enum DefinitionVariant {
Integer(IntegerDefinition),
Block(BlockDefinition),
Reference(ReferenceDefinition),
}
pub struct IntegerDefinition {
pub source: SourceSpan,
pub variant: IntegerDefinitionVariant,
}
pub enum IntegerDefinitionVariant {
Literal(usize),
Constant(ConstantExpression),
}
pub struct BlockDefinition {
pub tokens: Vec<BlockToken>,
pub errors: Vec<ParseError>,
}
pub struct BlockToken {
pub source: SourceSpan,
pub variant: BlockTokenVariant,
}
pub enum BlockTokenVariant {
Invocation(Invocation),
Comment(String),
Word(PackedBinaryLiteral),
}
/// References aren't necessarily an integer or a block
pub struct ReferenceDefinition {
pub source: SourceSpan,
pub name: String,
}
pub struct Invocation {
pub name: String,
pub arguments: Vec<DefinitionVariant>,
}
pub struct ParseError {
pub source: SourceSpan,
pub variant: ParseErrorVariant,
}
pub enum ParseErrorVariant {
UnterminatedMacroDefinition,
UnterminatedBlockDefinition,
/// Name of the macro.
InvalidArgumentDefinition(String),
InvalidToken,
}
// ------------------------------------------------------------------------ //
impl Program {
pub fn print_definitions(&self) {
for definition in &self.definitions {
let variant = match definition.variant {
DefinitionVariant::Integer(_) => "integer",
DefinitionVariant::Block(_) => "block",
DefinitionVariant::Reference(_) => "reference",
};
println!("DEFINE {} ({variant})", definition.name);
for argument in &definition.arguments {
let variant = match argument.variant {
ArgumentDefinitionVariant::Integer => "integer",
ArgumentDefinitionVariant::Block => "block",
};
println!(" ARGUMENT {} ({variant})", argument.name);
}
let variant = match &definition.variant {
DefinitionVariant::Integer(integer) => todo!(),
DefinitionVariant::Block(block) => todo!(),
DefinitionVariant::Reference(reference) => todo!()
};
println!();
}
}
}
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