syntax/ext: modernise ext_ctxt to be CamelCase and use new.

Author: huonw

src/librustc/front/test.rs

@@ -17,7 +17,7 @@ use syntax::ast_util::*;
 use syntax::attr;
 use syntax::codemap::{dummy_sp, span, ExpandedFrom, CallInfo, NameAndSpan};
 use syntax::codemap;
-use syntax::ext::base::{mk_ctxt, ext_ctxt};
+use syntax::ext::base::ExtCtxt;
 use syntax::fold;
 use syntax::print::pprust;
 use syntax::{ast, ast_util};
@@ -36,7 +36,7 @@ struct TestCtxt {
     sess: session::Session,
     crate: @ast::crate,
     path: ~[ast::ident],
-    ext_cx: @ext_ctxt,
+    ext_cx: @ExtCtxt,
     testfns: ~[Test]
 }
 
@@ -64,7 +64,7 @@ fn generate_test_harness(sess: session::Session,
     let cx: @mut TestCtxt = @mut TestCtxt {
         sess: sess,
         crate: crate,
-        ext_cx: mk_ctxt(sess.parse_sess, copy sess.opts.cfg),
+        ext_cx: ExtCtxt::new(sess.parse_sess, copy sess.opts.cfg),
         path: ~[],
         testfns: ~[]
     };

src/librustpkg/util.rs

@@ -19,7 +19,7 @@ use std::semver;
 use std::term;
 use syntax::ast_util::*;
 use syntax::codemap::{dummy_sp, spanned, dummy_spanned};
-use syntax::ext::base::{mk_ctxt, ext_ctxt};
+use syntax::ext::base::ExtCtxt;
 use syntax::{ast, attr, codemap, diagnostic, fold};
 use syntax::ast::{meta_name_value, meta_list};
 use syntax::attr::{mk_attr};
@@ -178,7 +178,7 @@ struct ListenerFn {
 struct ReadyCtx {
     sess: session::Session,
     crate: @ast::crate,
-    ext_cx: @ext_ctxt,
+    ext_cx: @ExtCtxt,
     path: ~[ast::ident],
     fns: ~[ListenerFn]
 }
@@ -247,7 +247,7 @@ pub fn ready_crate(sess: session::Session,
     let ctx = @mut ReadyCtx {
         sess: sess,
         crate: crate,
-        ext_cx: mk_ctxt(sess.parse_sess, copy sess.opts.cfg),
+        ext_cx: ExtCtxt::new(sess.parse_sess, copy sess.opts.cfg),
         path: ~[],
         fns: ~[]
     };

src/libsyntax/ext/asm.rs

@@ -37,7 +37,7 @@ fn next_state(s: State) -> Option<State> {
     }
 }
 
-pub fn expand_asm(cx: @ext_ctxt, sp: span, tts: &[ast::token_tree])
+pub fn expand_asm(cx: @ExtCtxt, sp: span, tts: &[ast::token_tree])
                -> base::MacResult {
     let p = parse::new_parser_from_tts(cx.parse_sess(),
                                        cx.cfg(),

src/libsyntax/ext/auto_encode.rs

@@ -15,7 +15,7 @@ use codemap::span;
 use ext::base::*;
 
 pub fn expand_auto_encode(
-    cx: @ext_ctxt,
+    cx: @ExtCtxt,
     span: span,
     _mitem: @ast::meta_item,
     in_items: ~[@ast::item]
@@ -25,7 +25,7 @@ pub fn expand_auto_encode(
 }
 
 pub fn expand_auto_decode(
-    cx: @ext_ctxt,
+    cx: @ExtCtxt,
     span: span,
     _mitem: @ast::meta_item,
     in_items: ~[@ast::item]

src/libsyntax/ext/base.rs

@@ -33,7 +33,7 @@ pub struct MacroDef {
     ext: SyntaxExtension
 }
 
-pub type ItemDecorator = @fn(@ext_ctxt,
+pub type ItemDecorator = @fn(@ExtCtxt,
                              span,
                              @ast::meta_item,
                              ~[@ast::item])
@@ -44,7 +44,7 @@ pub struct SyntaxExpanderTT {
     span: Option<span>
 }
 
-pub type SyntaxExpanderTTFun = @fn(@ext_ctxt,
+pub type SyntaxExpanderTTFun = @fn(@ExtCtxt,
                                    span,
                                    &[ast::token_tree])
                                 -> MacResult;
@@ -54,7 +54,7 @@ pub struct SyntaxExpanderTTItem {
     span: Option<span>
 }
 
-pub type SyntaxExpanderTTItemFun = @fn(@ext_ctxt,
+pub type SyntaxExpanderTTItemFun = @fn(@ExtCtxt,
                                        span,
                                        ast::ident,
                                        ~[ast::token_tree])
@@ -202,7 +202,7 @@ pub fn syntax_expander_table() -> SyntaxEnv {
 // One of these is made during expansion and incrementally updated as we go;
 // when a macro expansion occurs, the resulting nodes have the backtrace()
 // -> expn_info of their expansion context stored into their span.
-pub struct ext_ctxt {
+pub struct ExtCtxt {
     parse_sess: @mut parse::ParseSess,
     cfg: ast::crate_cfg,
     backtrace: @mut Option<@ExpnInfo>,
@@ -216,7 +216,17 @@ pub struct ext_ctxt {
     trace_mac: @mut bool
 }
 
-pub impl ext_ctxt {
+pub impl ExtCtxt {
+    fn new(parse_sess: @mut parse::ParseSess, cfg: ast::crate_cfg) -> @ExtCtxt {
+        @ExtCtxt {
+            parse_sess: parse_sess,
+            cfg: cfg,
+            backtrace: @mut None,
+            mod_path: @mut ~[],
+            trace_mac: @mut false
+        }
+    }
+
     fn codemap(&self) -> @CodeMap { self.parse_sess.cm }
     fn parse_sess(&self) -> @mut parse::ParseSess { self.parse_sess }
     fn cfg(&self) -> ast::crate_cfg { copy self.cfg }
@@ -294,18 +304,7 @@ pub impl ext_ctxt {
     }
 }
 
-pub fn mk_ctxt(parse_sess: @mut parse::ParseSess, cfg: ast::crate_cfg)
-    -> @ext_ctxt {
-    @ext_ctxt {
-        parse_sess: parse_sess,
-        cfg: cfg,
-        backtrace: @mut None,
-        mod_path: @mut ~[],
-        trace_mac: @mut false
-    }
-}
-
-pub fn expr_to_str(cx: @ext_ctxt, expr: @ast::expr, err_msg: ~str) -> ~str {
+pub fn expr_to_str(cx: @ExtCtxt, expr: @ast::expr, err_msg: ~str) -> ~str {
     match expr.node {
       ast::expr_lit(l) => match l.node {
         ast::lit_str(s) => copy *s,
@@ -315,7 +314,7 @@ pub fn expr_to_str(cx: @ext_ctxt, expr: @ast::expr, err_msg: ~str) -> ~str {
     }
 }
 
-pub fn expr_to_ident(cx: @ext_ctxt,
+pub fn expr_to_ident(cx: @ExtCtxt,
                      expr: @ast::expr,
                      err_msg: &str) -> ast::ident {
     match expr.node {
@@ -329,14 +328,14 @@ pub fn expr_to_ident(cx: @ext_ctxt,
     }
 }
 
-pub fn check_zero_tts(cx: @ext_ctxt, sp: span, tts: &[ast::token_tree],
+pub fn check_zero_tts(cx: @ExtCtxt, sp: span, tts: &[ast::token_tree],
                       name: &str) {
     if tts.len() != 0 {
         cx.span_fatal(sp, fmt!("%s takes no arguments", name));
     }
 }
 
-pub fn get_single_str_from_tts(cx: @ext_ctxt,
+pub fn get_single_str_from_tts(cx: @ExtCtxt,
                                sp: span,
                                tts: &[ast::token_tree],
                                name: &str) -> ~str {
@@ -351,7 +350,7 @@ pub fn get_single_str_from_tts(cx: @ext_ctxt,
     }
 }
 
-pub fn get_exprs_from_tts(cx: @ext_ctxt, tts: &[ast::token_tree])
+pub fn get_exprs_from_tts(cx: @ExtCtxt, tts: &[ast::token_tree])
                        -> ~[@ast::expr] {
     let p = parse::new_parser_from_tts(cx.parse_sess(),
                                        cx.cfg(),