rustc: Remove compiler support for __log_level()

This commit removes all internal support for the previously used __log_level()
expression. The logging subsystem was previously modified to not rely on this
magical expression. This also removes the only other function to use the
module_data map in trans, decl_gc_metadata. It appears that this is an ancient
function from a GC only used long ago.

This does not remove the crate map entirely, as libgreen still uses it to hook
in to the event loop provided by libgreen.

1 files changed, 1 insertions, 7 deletions

diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 040c4da6885..f52effb8c81 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -25,7 +25,7 @@ use ast::{Expr, Expr_, ExprAddrOf, ExprMatch, ExprAgain};
 use ast::{ExprAssign, ExprAssignOp, ExprBinary, ExprBlock, ExprBox};
 use ast::{ExprBreak, ExprCall, ExprCast};
 use ast::{ExprField, ExprFnBlock, ExprIf, ExprIndex};
-use ast::{ExprLit, ExprLogLevel, ExprLoop, ExprMac};
+use ast::{ExprLit, ExprLoop, ExprMac};
 use ast::{ExprMethodCall, ExprParen, ExprPath, ExprProc};
 use ast::{ExprRepeat, ExprRet, ExprStruct, ExprTup, ExprUnary};
 use ast::{ExprVec, ExprVstore, ExprVstoreSlice};
@@ -1886,12 +1886,6 @@ impl Parser {
                 }
             }
             hi = self.last_span.hi;
-        } else if self.eat_keyword(keywords::__LogLevel) {
-            // LOG LEVEL expression
-            self.expect(&token::LPAREN);
-            ex = ExprLogLevel;
-            hi = self.span.hi;
-            self.expect(&token::RPAREN);
         } else if self.eat_keyword(keywords::Return) {
             // RETURN expression
             if can_begin_expr(&self.token) {