diff options
Diffstat (limited to 'src/libsyntax/ext')
| -rw-r--r-- | src/libsyntax/ext/base.rs | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/libsyntax/ext/base.rs b/src/libsyntax/ext/base.rs index 8c3db21f4ea..c924acd577d 100644 --- a/src/libsyntax/ext/base.rs +++ b/src/libsyntax/ext/base.rs @@ -44,8 +44,8 @@ pub struct SyntaxExpanderTT { span: Option<span> } -pub type SyntaxExpanderTTFun = fn@(ext_ctxt, span, ~[ast::token_tree]) - -> MacResult; +pub type SyntaxExpanderTTFun + = fn@(ext_ctxt, span, ~[ast::token_tree]) -> MacResult; pub struct SyntaxExpanderTTItem { expander: SyntaxExpanderTTItemFun, @@ -78,9 +78,11 @@ pub enum SyntaxExtension { // A temporary hard-coded map of methods for expanding syntax extension // AST nodes into full ASTs pub fn syntax_expander_table() -> HashMap<~str, SyntaxExtension> { + // utility function to simplify creating NormalTT syntax extensions fn builtin_normal_tt(f: SyntaxExpanderTTFun) -> SyntaxExtension { NormalTT(SyntaxExpanderTT{expander: f, span: None}) } + // utility function to simplify creating ItemTT syntax extensions fn builtin_item_tt(f: SyntaxExpanderTTItemFun) -> SyntaxExtension { ItemTT(SyntaxExpanderTTItem{expander: f, span: None}) } @@ -112,8 +114,8 @@ pub fn syntax_expander_table() -> HashMap<~str, SyntaxExtension> { ext::deriving::expand_deriving_iter_bytes)); // Quasi-quoting expanders - syntax_expanders.insert( - ~"quote_tokens", builtin_normal_tt(ext::quote::expand_quote_tokens)); + syntax_expanders.insert(~"quote_tokens", + builtin_normal_tt(ext::quote::expand_quote_tokens)); syntax_expanders.insert(~"quote_expr", builtin_normal_tt(ext::quote::expand_quote_expr)); syntax_expanders.insert(~"quote_ty", |