Function rustc_expand::mbe::quoted::parse_tree

pub(in mbe::quoted) fn parse_tree(
    tree: TokenTree, 
    outer_trees: &mut impl Iterator<Item = TokenTree>, 
    expect_matchers: bool, 
    sess: &ParseSess, 
    node_id: NodeId
) -> TokenTree

Takes a tokenstream::TokenTree and returns a self::TokenTree. Specifically, this takes a generic TokenTree, such as is used in the rest of the compiler, and returns a TokenTree for use in parsing a macro.

Converting the given tree may involve reading more tokens.

Parameters

• tree: the tree we wish to convert.
• outer_trees: an iterator over trees. We may need to read more tokens from it in order to finish converting tree
• expect_matchers: same as for parse (see above).
• sess: the parsing session. Any errors will be emitted to this session.
• features, attrs: language feature flags and attributes so that we know whether to use unstable features or not.