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Add trace_macros!

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This commit is contained in:
Eric Holk
2012-08-15 10:45:10 -07:00
parent 00ef5418d4
commit 1e96099918
4 changed files with 51 additions and 7 deletions
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17
src/libsyntax/ext/base.rs
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@@ -111,6 +111,9 @@ fn syntax_expander_table() -> hashmap<~str, syntax_extension> {
builtin(ext::source_util::expand_mod));
syntax_expanders.insert(~"proto",
builtin_item_tt(ext::pipes::expand_proto));
syntax_expanders.insert(
~"trace_macros",
builtin_expr_tt(ext::trace_macros::expand_trace_macros));
return syntax_expanders;
}
@@ -136,6 +139,8 @@ trait ext_ctxt {
fn span_bug(sp: span, msg: ~str) -> !;
fn bug(msg: ~str) -> !;
fn next_id() -> ast::node_id;
pure fn trace_macros() -> bool;
fn set_trace_macros(x: bool);
}
fn mk_ctxt(parse_sess: parse::parse_sess,
@@ -143,7 +148,8 @@ fn mk_ctxt(parse_sess: parse::parse_sess,
type ctxt_repr = {parse_sess: parse::parse_sess,
cfg: ast::crate_cfg,
mut backtrace: expn_info,
mut mod_path: ~[ast::ident]};
mut mod_path: ~[ast::ident],
mut trace_mac: bool};
impl ctxt_repr: ext_ctxt {
fn codemap() -> codemap { self.parse_sess.cm }
fn parse_sess() -> parse::parse_sess { self.parse_sess }
@@ -199,12 +205,19 @@ fn mk_ctxt(parse_sess: parse::parse_sess,
fn next_id() -> ast::node_id {
return parse::next_node_id(self.parse_sess);
}
pure fn trace_macros() -> bool {
self.trace_mac
}
fn set_trace_macros(x: bool) {
self.trace_mac = x
}
}
let imp : ctxt_repr = {
parse_sess: parse_sess,
cfg: cfg,
mut backtrace: none,
mut mod_path: ~[]
mut mod_path: ~[],
mut trace_mac: false
};
return imp as ext_ctxt
}