---

yaml
---
r: 162663
b: refs/heads/try
c: 989d7a7
h: refs/heads/master
i:
  162661: a115ac1
  162659: 6029090
  162655: 842f65e
v: v3

Author: alexcrichton

[refs]

@@ -2,7 +2,7 @@
 refs/heads/master: 9146a919b616e39e528e4d7100d16eef52f1f852
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: cafe2966770ff377aad6dd9fd808e68055587c58
-refs/heads/try: c9816be35a1bcdef915498939a1f62c18dee1c04
+refs/heads/try: 989d7a78bbf6e2354911d37653d5bb1cb018742c
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596

branches/try/Makefile.in

@@ -198,6 +198,8 @@ include $(CFG_SRC_DIR)mk/rustllvm.mk
 include $(CFG_SRC_DIR)mk/docs.mk
 # LLVM
 include $(CFG_SRC_DIR)mk/llvm.mk
+# Rules for installing debugger scripts
+include $(CFG_SRC_DIR)mk/debuggers.mk
 
 ######################################################################
 # Secondary makefiles, conditionalized for speed

branches/try/configure

@@ -624,7 +624,6 @@ probe CFG_LD               ld
 probe CFG_VALGRIND         valgrind
 probe CFG_PERF             perf
 probe CFG_ISCC             iscc
-probe CFG_LLNEXTGEN        LLnextgen
 probe CFG_JAVAC            javac
 probe CFG_ANTLR4           antlr4
 probe CFG_GRUN             grun

branches/try/mk/clean.mk

@@ -63,6 +63,7 @@ clean-generic-$(2)-$(1):
          -name '*.lib' -o \
          -name '*.dll' -o \
          -name '*.def' -o \
+         -name '*.py' -o \
          -name '*.bc' \
          \) \
          | xargs rm -f
@@ -78,7 +79,7 @@ define CLEAN_HOST_STAGE_N
 
 clean$(1)_H_$(2): \
 	    $$(foreach crate,$$(CRATES),clean$(1)_H_$(2)-lib-$$(crate)) \
-	    $$(foreach tool,$$(TOOLS),clean$(1)_H_$(2)-tool-$$(tool))
+	    $$(foreach tool,$$(TOOLS) $$(DEBUGGER_BIN_SCRIPTS),clean$(1)_H_$(2)-tool-$$(tool))
 	$$(Q)rm -fr $(2)/rt/libbacktrace
 
 clean$(1)_H_$(2)-tool-%:
@@ -98,7 +99,7 @@ define CLEAN_TARGET_STAGE_N
 
 clean$(1)_T_$(2)_H_$(3): \
 	    $$(foreach crate,$$(CRATES),clean$(1)_T_$(2)_H_$(3)-lib-$$(crate)) \
-	    $$(foreach tool,$$(TOOLS),clean$(1)_T_$(2)_H_$(3)-tool-$$(tool))
+	    $$(foreach tool,$$(TOOLS) $$(DEBUGGER_BIN_SCRIPTS),clean$(1)_T_$(2)_H_$(3)-tool-$$(tool))
 	$$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/libmorestack.a
 	$$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/libcompiler-rt.a
 	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/librun_pass_stage* # For unix

branches/try/mk/crates.mk

@@ -50,7 +50,7 @@
 ################################################################################
 
 TARGET_CRATES := libc std flate arena term \
-                 serialize sync getopts collections test time rand \
+                 serialize getopts collections test time rand \
                  log regex graphviz core rbml alloc rustrt \
                  unicode
 HOST_CRATES := syntax rustc rustc_trans rustdoc regex_macros fmt_macros \
@@ -63,7 +63,7 @@ DEPS_libc := core
 DEPS_unicode := core
 DEPS_alloc := core libc native:jemalloc
 DEPS_rustrt := alloc core libc collections native:rustrt_native
-DEPS_std := core libc rand alloc collections rustrt sync unicode \
+DEPS_std := core libc rand alloc collections rustrt unicode \
 	native:rust_builtin native:backtrace
 DEPS_graphviz := std
 DEPS_syntax := std term serialize log fmt_macros arena libc
@@ -81,7 +81,6 @@ DEPS_glob := std
 DEPS_serialize := std log
 DEPS_rbml := std log serialize
 DEPS_term := std log
-DEPS_sync := core alloc rustrt collections
 DEPS_getopts := std
 DEPS_collections := core alloc unicode
 DEPS_num := std

branches/try/mk/debuggers.mk

@@ -0,0 +1,59 @@
+# Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+# file at the top-level directory of this distribution and at
+# http://rust-lang.org/COPYRIGHT.
+#
+# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+# option. This file may not be copied, modified, or distributed
+# except according to those terms.
+
+######################################################################
+# Copy debugger related scripts
+######################################################################
+
+DEBUGGER_RUSTLIB_ETC_SCRIPTS=lldb_rust_formatters.py
+DEBUGGER_BIN_SCRIPTS=rust-lldb
+
+DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS=$(foreach script,$(DEBUGGER_RUSTLIB_ETC_SCRIPTS), \
+                                     $(CFG_SRC_DIR)src/etc/$(script))
+DEBUGGER_BIN_SCRIPTS_ABS=$(foreach script,$(DEBUGGER_BIN_SCRIPTS), \
+                             $(CFG_SRC_DIR)src/etc/$(script))
+
+DEBUGGER_SCRIPTS_ALL=$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS) $(DEBUGGER_BIN_SCRIPTS_ABS)
+
+# $(1) - the stage to copy to
+# $(2) - the host triple
+define DEF_INSTALL_DEBUGGER_SCRIPTS_HOST
+
+tmp/install-debugger-scripts$(1)_H_$(2).done: $$(DEBUGGER_SCRIPTS_ALL)
+	$(Q)mkdir -p $$(HBIN$(1)_H_$(2))
+	$(Q)mkdir -p $$(HLIB$(1)_H_$(2))/rustlib/etc
+	$(Q)install $(DEBUGGER_BIN_SCRIPTS_ABS) $$(HBIN$(1)_H_$(2))
+	$(Q)install $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS) $$(HLIB$(1)_H_$(2))/rustlib/etc
+	$(Q)touch $$@
+endef
+
+# Expand host make-targets for all stages
+$(foreach stage,$(STAGES), \
+  $(foreach host,$(CFG_HOST), \
+    $(eval $(call DEF_INSTALL_DEBUGGER_SCRIPTS_HOST,$(stage),$(host)))))
+
+# $(1) is the stage number
+# $(2) is the target triple
+# $(3) is the host triple
+define DEF_INSTALL_DEBUGGER_SCRIPTS_TARGET
+
+tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3).done: $$(DEBUGGER_SCRIPTS_ALL)
+	$(Q)mkdir -p $$(TBIN$(1)_T_$(2)_H_$(3))
+	$(Q)mkdir -p $$(TLIB$(1)_T_$(2)_H_$(3))/rustlib/etc
+	$(Q)install $(DEBUGGER_BIN_SCRIPTS_ABS) $$(TBIN$(1)_T_$(2)_H_$(3))
+	$(Q)install $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS) $$(TLIB$(1)_T_$(2)_H_$(3))/rustlib/etc
+	$(Q)touch $$@
+endef
+
+# Expand target make-targets for all stages
+$(foreach stage,$(STAGES), \
+  $(foreach target,$(CFG_TARGET), \
+    $(foreach host,$(CFG_HOST), \
+      $(eval $(call DEF_INSTALL_DEBUGGER_SCRIPTS_TARGET,$(stage),$(target),$(host))))))

branches/try/mk/docs.mk

@@ -246,26 +246,6 @@ endef
 $(foreach lang,$(L10N_LANGS),$(eval $(call DEF_L10N_DOC,$(lang),guide)))
 
 
-######################################################################
-# LLnextgen (grammar analysis from refman)
-######################################################################
-
-ifeq ($(CFG_LLNEXTGEN),)
-  $(info cfg: no llnextgen found, omitting grammar-verification)
-else
-.PHONY: verify-grammar
-
-doc/rust.g: $(D)/rust.md $(S)src/etc/extract_grammar.py
-	@$(call E, extract_grammar: $@)
-	$(Q)$(CFG_PYTHON) $(S)src/etc/extract_grammar.py $< >$@
-
-verify-grammar: doc/rust.g
-	@$(call E, LLnextgen: $<)
-	$(Q)$(CFG_LLNEXTGEN) --generate-lexer-wrapper=no $< >$@
-	$(Q)rm -f doc/rust.c doc/rust.h
-endif
-
-
 ######################################################################
 # Rustdoc (libstd/extra)
 ######################################################################

branches/try/mk/main.mk

@@ -356,7 +356,8 @@ HSREQ$(1)_H_$(3) = $$(HBIN$(1)_H_$(3))/rustc$$(X_$(3))
 else
 HSREQ$(1)_H_$(3) = \
 	$$(HBIN$(1)_H_$(3))/rustc$$(X_$(3)) \
-	$$(MKFILE_DEPS)
+	$$(MKFILE_DEPS) \
+	tmp/install-debugger-scripts$(1)_H_$(3).done
 endif
 
 # Prerequisites for using the stageN compiler to build target artifacts
@@ -370,7 +371,8 @@ TSREQ$(1)_T_$(2)_H_$(3) = \
 SREQ$(1)_T_$(2)_H_$(3) = \
 	$$(TSREQ$(1)_T_$(2)_H_$(3)) \
 	$$(foreach dep,$$(TARGET_CRATES), \
-	    $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep))
+	    $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep)) \
+	tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3).done
 
 # Prerequisites for a working stageN compiler and complete set of target
 # libraries

branches/try/mk/prepare.mk

@@ -155,7 +155,7 @@ prepare-base-$(1): PREPARE_DEST_LIB_DIR=$$(PREPARE_DEST_DIR)/$$(CFG_LIBDIR_RELAT
 prepare-base-$(1): PREPARE_DEST_MAN_DIR=$$(PREPARE_DEST_DIR)/share/man/man1
 prepare-base-$(1): prepare-everything-$(1)
 
-prepare-everything-$(1): prepare-host-$(1) prepare-targets-$(1)
+prepare-everything-$(1): prepare-host-$(1) prepare-targets-$(1) prepare-debugger-scripts-$(1)
 
 prepare-host-$(1): prepare-host-tools-$(1)
 
@@ -167,8 +167,13 @@ prepare-host-tools-$(1): \
 prepare-host-dirs-$(1): prepare-maybe-clean-$(1)
 	$$(call PREPARE_DIR,$$(PREPARE_DEST_BIN_DIR))
 	$$(call PREPARE_DIR,$$(PREPARE_DEST_LIB_DIR))
+	$$(call PREPARE_DIR,$$(PREPARE_DEST_LIB_DIR)/rustlib/etc)
 	$$(call PREPARE_DIR,$$(PREPARE_DEST_MAN_DIR))
 
+prepare-debugger-scripts-$(1): prepare-host-dirs-$(1) $(DEBUGGER_SCRIPTS_ALL)
+	$$(Q)$$(PREPARE_BIN_CMD) $(DEBUGGER_BIN_SCRIPTS_ABS) $$(PREPARE_DEST_BIN_DIR)
+	$$(Q)$$(PREPARE_LIB_CMD) $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS) $$(PREPARE_DEST_LIB_DIR)/rustlib/etc
+
 $$(foreach tool,$$(PREPARE_TOOLS), \
   $$(foreach host,$$(CFG_HOST), \
       $$(eval $$(call DEF_PREPARE_HOST_TOOL,$$(tool),$$(PREPARE_STAGE),$$(host),$(1)))))

branches/try/src/compiletest/errors.rs

@@ -7,6 +7,7 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
+use self::WhichLine::*;
 
 use std::ascii::AsciiExt;
 use std::io::{BufferedReader, File};
@@ -18,28 +19,74 @@ pub struct ExpectedError {
     pub msg: String,
 }
 
-pub static EXPECTED_PATTERN : &'static str = r"//~(?P<adjusts>\^*)\s*(?P<kind>\S*)\s*(?P<msg>.*)";
+/// Looks for either "//~| KIND MESSAGE" or "//~^^... KIND MESSAGE"
+/// The former is a "follow" that inherits its target from the preceding line;
+/// the latter is an "adjusts" that goes that many lines up.
+///
+/// Goal is to enable tests both like: //~^^^ ERROR go up three
+/// and also //~^ ERROR message one for the preceding line, and
+///          //~| ERROR message two for that same line.
+
+pub static EXPECTED_PATTERN : &'static str =
+    r"//~(?P<follow>\|)?(?P<adjusts>\^*)\s*(?P<kind>\S*)\s*(?P<msg>.*)";
+
+#[deriving(PartialEq, Show)]
+enum WhichLine { ThisLine, FollowPrevious(uint), AdjustBackward(uint) }
 
 // Load any test directives embedded in the file
 pub fn load_errors(re: &Regex, testfile: &Path) -> Vec<ExpectedError> {
     let mut rdr = BufferedReader::new(File::open(testfile).unwrap());
 
+    // `last_nonfollow_error` tracks the most recently seen
+    // line with an error template that did not use the
+    // follow-syntax, "//~| ...".
+    //
+    // (pnkfelix could not find an easy way to compose Iterator::scan
+    // and Iterator::filter_map to pass along this information into
+    // `parse_expected`. So instead I am storing that state here and
+    // updating it in the map callback below.)
+    let mut last_nonfollow_error = None;
+
     rdr.lines().enumerate().filter_map(|(line_no, ln)| {
-        parse_expected(line_no + 1, ln.unwrap().as_slice(), re)
+        parse_expected(last_nonfollow_error,
+                       line_no + 1,
+                       ln.unwrap().as_slice(), re)
+            .map(|(which, error)| {
+                match which {
+                    FollowPrevious(_) => {}
+                    _ => last_nonfollow_error = Some(error.line),
+                }
+                error
+            })
     }).collect()
 }
 
-fn parse_expected(line_num: uint, line: &str, re: &Regex) -> Option<ExpectedError> {
+fn parse_expected(last_nonfollow_error: Option<uint>,
+                  line_num: uint,
+                  line: &str,
+                  re: &Regex) -> Option<(WhichLine, ExpectedError)> {
     re.captures(line).and_then(|caps| {
         let adjusts = caps.name("adjusts").len();
         let kind = caps.name("kind").to_ascii_lower();
         let msg = caps.name("msg").trim().to_string();
+        let follow = caps.name("follow").len() > 0;
+
+        let (which, line) = if follow {
+            assert!(adjusts == 0, "use either //~| or //~^, not both.");
+            let line = last_nonfollow_error.unwrap_or_else(|| {
+                panic!("encountered //~| without preceding //~^ line.")
+            });
+            (FollowPrevious(line), line)
+        } else {
+            let which =
+                if adjusts > 0 { AdjustBackward(adjusts) } else { ThisLine };
+            let line = line_num - adjusts;
+            (which, line)
+        };
 
-        debug!("line={} kind={} msg={}", line_num, kind, msg);
-        Some(ExpectedError {
-            line: line_num - adjusts,
-            kind: kind,
-            msg: msg,
-        })
+        debug!("line={} which={} kind={} msg={}", line_num, which, kind, msg);
+        Some((which, ExpectedError { line: line,
+                                     kind: kind,
+                                     msg: msg, }))
     })
 }

branches/try/src/doc/complement-bugreport.md

@@ -2,7 +2,7 @@
 
 # I think I found a bug in the compiler!
 
-If you see this message: `error: internal compiler error: unexpected failure`,
+If you see this message: `error: internal compiler error: unexpected panic`,
 then you have definitely found a bug in the compiler. It's also possible that
 your code is not well-typed, but if you saw this message, it's still a bug in
 error reporting.

branches/try/src/doc/guide-pointers.md

@@ -445,11 +445,32 @@ fn succ(x: &int) -> int { *x + 1 }
 to
 
 ```{rust}
+use std::rc::Rc;
+
 fn box_succ(x: Box<int>) -> int { *x + 1 }
 
-fn rc_succ(x: std::rc::Rc<int>) -> int { *x + 1 }
+fn rc_succ(x: Rc<int>) -> int { *x + 1 }
+```
+
+Note that the caller of your function will have to modify their calls slightly:
+
+```{rust}
+use std::rc::Rc;
+
+fn succ(x: &int) -> int { *x + 1 }
+
+let ref_x = &5i;
+let box_x = box 5i;
+let rc_x  = Rc::new(5i);
+
+succ(ref_x);
+succ(&*box_x);
+succ(&*rc_x);
 ```
 
+The initial `*` dereferences the pointer, and then `&` takes a reference to
+those contents.
+
 # Boxes
 
 `Box<T>` is Rust's 'boxed pointer' type. Boxes provide the simplest form of

branches/try/src/doc/guide.md

@@ -378,9 +378,15 @@ of your time with Rust.
 The first thing we'll learn about are 'variable bindings.' They look like this:
 
 ```{rust}
-let x = 5i;
+fn main() {
+    let x = 5i;
+}
 ```
 
+Putting `fn main() {` in each example is a bit tedious, so we'll leave that out
+in the future. If you're following along, make sure to edit your `main()`
+function, rather than leaving it off. Otherwise, you'll get an error.
+
 In many languages, this is called a 'variable.' But Rust's variable bindings
 have a few tricks up their sleeves. Rust has a very powerful feature called
 'pattern matching' that we'll get into detail with later, but the left

branches/try/src/etc/licenseck.py

@@ -38,10 +38,9 @@
     "rt/isaac/randport.cpp", # public domain
     "rt/isaac/rand.h", # public domain
     "rt/isaac/standard.h", # public domain
-    "libsync/mpsc_queue.rs", # BSD
-    "libsync/spsc_queue.rs", # BSD
-    "libsync/mpmc_bounded_queue.rs", # BSD
-    "libsync/mpsc_intrusive.rs", # BSD
+    "libstd/sync/mpsc_queue.rs", # BSD
+    "libstd/sync/spsc_queue.rs", # BSD
+    "libstd/sync/mpmc_bounded_queue.rs", # BSD
     "test/bench/shootout-binarytrees.rs", # BSD
     "test/bench/shootout-chameneos-redux.rs", # BSD
     "test/bench/shootout-fannkuch-redux.rs", # BSD