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20 changes: 12 additions & 8 deletions src/libsyntax/ast.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -30,9 +30,9 @@ pub struct ident { name: Name, ctxt: SyntaxContext }
/// Construct an identifier with the given name and an empty context:
pub fn new_ident(name: Name) -> ident { ident {name: name, ctxt: empty_ctxt}}

// a SyntaxContext represents a chain of macro-expandings
// and renamings. Each macro expansion corresponds to
// a fresh uint
/// A SyntaxContext represents a chain of macro-expandings
/// and renamings. Each macro expansion corresponds to
/// a fresh uint

// I'm representing this syntax context as an index into
// a table, in order to work around a compiler bug
Expand Down Expand Up @@ -70,11 +70,10 @@ pub enum SyntaxContext_ {
IllegalCtxt()
}

// a name is a part of an identifier, representing a string
// or gensym. It's the result of interning.
/// A name is a part of an identifier, representing a string or gensym. It's
/// the result of interning.
pub type Name = uint;
// a mark represents a unique id associated
// with a macro expansion
/// A mark represents a unique id associated with a macro expansion
pub type Mrk = uint;

impl<S:Encoder> Encodable<S> for ident {
Expand All @@ -90,7 +89,7 @@ impl<D:Decoder> Decodable<D> for ident {
}
}

// Functions may or may not have names.
/// Function name (not all functions have names)
pub type fn_ident = Option<ident>;

#[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
Expand All @@ -107,9 +106,14 @@ pub struct Lifetime {
#[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
pub struct Path {
span: span,
/// A `::foo` path, is relative to the crate root rather than current
/// module (like paths in an import).
global: bool,
/// The segments in the path (the things separated by ::)
idents: ~[ident],
/// "Region parameter", currently only one lifetime is allowed in a path.
rp: Option<Lifetime>,
/// These are the type parameters, ie, the `a, b` in `foo::bar::<a, b>`
types: ~[Ty],
}

Expand Down