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authorGravatar Abseil Team <absl-team@google.com>2020-08-02 14:23:26 -0700
committerGravatar Derek Mauro <dmauro@google.com>2020-08-03 13:24:24 -0400
commit1995c6a3c2f9080160d9d8716504dc004e5e1ec0 (patch)
tree0b1e861b0d2c16f78d0f2e861a94a2bccf38965a /absl/debugging
parent184cf2524101310a0ba315c743e82cf45fccccf8 (diff)
Export of internal Abseil changes
-- 790f9061df340cd900e8da70e66c363f7af3c2eb by Abseil Team <absl-team@google.com>: Add support for rvalue reference to function types. PiperOrigin-RevId: 324508531 -- 51fe201dbb41a3ebc3d49ff65250b5f464279d43 by Abseil Team <absl-team@google.com>: Cleaning up function comment style; no substantive change. PiperOrigin-RevId: 324497401 -- da8595d5266577d0c170528d12f6de17b8affcc2 by Abseil Team <absl-team@google.com>: Add support for demangling GNU vector types. PiperOrigin-RevId: 324494559 -- 0cb0acf88c1750f6963c9cb85249f9b4f0bd5104 by Abseil Team <absl-team@google.com>: Add support for thread-local types. PiperOrigin-RevId: 324491183 -- c676bc8380560599cd26f7f231e04e6be532e904 by Abseil Team <absl-team@google.com>: Add support for demangling "Du" (char8_t). PiperOrigin-RevId: 324441607 -- b218bf6467bc62b327214782c881e8224ad91509 by Abseil Team <absl-team@google.com>: Update doc comments in header of `any.h` to reflect that `absl::variant` has been released. PiperOrigin-RevId: 324431690 -- e5b579f3f1aa598c1f62e71dba7103b98811de59 by Laramie Leavitt <lar@google.com>: Bugfix: Fix bounds in absl::Uniform where one of the bounds is min/max. When absl::Uniform(rng, tag, a, b) is called, the tag is used in conjunction with the type to determine whether or not to manipulate the bounds to make them inclusive or exclusive through the uniform_*_bound functions. Unfortunately, at limits of the interval the function was not well behaved. The previous implementation used wrapping arithmetic. This causes incorrect bounds computation at the extremes (numeric_limits::min / numeric_limits::max) the bound would wrap. Improve this situation by: 1/ Changing the uniform_*_bound functions to use saturating arithmetic instead of wrapping, thus in the unsigned case, the upper_bound of IntervalOpenOpen for 0 is now 0, rather than numeric_limits::max, likewise for the lower bound. 2/ Adjusting the hi/lo checks in the distributions. When the interval is empty, such as for absl::Uniform(absl::IntervalOpenOpen, gen, 1, 0), the return value is somewhat nonsensical. Now absl::Uniform more consistently returns the low input rather than any adjusted input. In the above case, that means that 1 is returned rather than 2. NOTE: Calls to absl::Uniform where the resolved upper bound is < the lower bound are still ill-formed and should be avoided. 3/ Adding better tests. The underlying uniform_*_distribution classes are not affected. PiperOrigin-RevId: 324240873 GitOrigin-RevId: 790f9061df340cd900e8da70e66c363f7af3c2eb Change-Id: I2a2208650ea3135c575e200b868ce1d275069fc8
Diffstat (limited to 'absl/debugging')
-rw-r--r--absl/debugging/internal/demangle.cc14
1 files changed, 12 insertions, 2 deletions
diff --git a/absl/debugging/internal/demangle.cc b/absl/debugging/internal/demangle.cc
index 5f54ef34..87f13e50 100644
--- a/absl/debugging/internal/demangle.cc
+++ b/absl/debugging/internal/demangle.cc
@@ -126,6 +126,7 @@ static const AbbrevPair kBuiltinTypeList[] = {
{"Dn", "std::nullptr_t", 0}, // i.e., decltype(nullptr)
{"Df", "decimal32", 0}, // IEEE 754r decimal floating point (32 bits)
{"Di", "char32_t", 0},
+ {"Du", "char8_t", 0},
{"Ds", "char16_t", 0},
{"Dh", "float16", 0}, // IEEE 754r half-precision float (16 bits)
{nullptr, nullptr, 0},
@@ -965,6 +966,7 @@ static bool ParseOperatorName(State *state, int *arity) {
// ::= TT <type>
// ::= TI <type>
// ::= TS <type>
+// ::= TH <type> # thread-local
// ::= Tc <call-offset> <call-offset> <(base) encoding>
// ::= GV <(object) name>
// ::= T <call-offset> <(base) encoding>
@@ -983,7 +985,7 @@ static bool ParseSpecialName(State *state) {
ComplexityGuard guard(state);
if (guard.IsTooComplex()) return false;
ParseState copy = state->parse_state;
- if (ParseOneCharToken(state, 'T') && ParseCharClass(state, "VTIS") &&
+ if (ParseOneCharToken(state, 'T') && ParseCharClass(state, "VTISH") &&
ParseType(state)) {
return true;
}
@@ -1142,6 +1144,7 @@ static bool ParseDecltype(State *state) {
// ::= <decltype>
// ::= <substitution>
// ::= Dp <type> # pack expansion of (C++0x)
+// ::= Dv <num-elems> _ # GNU vector extension
//
static bool ParseType(State *state) {
ComplexityGuard guard(state);
@@ -1208,6 +1211,12 @@ static bool ParseType(State *state) {
return true;
}
+ if (ParseTwoCharToken(state, "Dv") && ParseNumber(state, nullptr) &&
+ ParseOneCharToken(state, '_')) {
+ return true;
+ }
+ state->parse_state = copy;
+
return false;
}
@@ -1256,13 +1265,14 @@ static bool ParseBuiltinType(State *state) {
return false;
}
-// <function-type> ::= F [Y] <bare-function-type> E
+// <function-type> ::= F [Y] <bare-function-type> [O] E
static bool ParseFunctionType(State *state) {
ComplexityGuard guard(state);
if (guard.IsTooComplex()) return false;
ParseState copy = state->parse_state;
if (ParseOneCharToken(state, 'F') &&
Optional(ParseOneCharToken(state, 'Y')) && ParseBareFunctionType(state) &&
+ Optional(ParseOneCharToken(state, 'O')) &&
ParseOneCharToken(state, 'E')) {
return true;
}