[llvm] 89615a5 - [Demangle][Rust] Parse dyn-bounds
Tomasz Miąsko via llvm-commits
llvm-commits at lists.llvm.org
Mon Jun 7 09:25:26 PDT 2021
Author: Tomasz Miąsko
Date: 2021-06-07T18:18:30+02:00
New Revision: 89615a5e925e10f388130e80fba4bf28bc3c3c0a
URL: https://github.com/llvm/llvm-project/commit/89615a5e925e10f388130e80fba4bf28bc3c3c0a
DIFF: https://github.com/llvm/llvm-project/commit/89615a5e925e10f388130e80fba4bf28bc3c3c0a.diff
LOG: [Demangle][Rust] Parse dyn-bounds
Reviewed By: dblaikie
Differential Revision: https://reviews.llvm.org/D103151
Added:
Modified:
llvm/include/llvm/Demangle/RustDemangle.h
llvm/lib/Demangle/RustDemangle.cpp
llvm/test/Demangle/rust.test
Removed:
################################################################################
diff --git a/llvm/include/llvm/Demangle/RustDemangle.h b/llvm/include/llvm/Demangle/RustDemangle.h
index a57f4d09bf73..8158787b47ba 100644
--- a/llvm/include/llvm/Demangle/RustDemangle.h
+++ b/llvm/include/llvm/Demangle/RustDemangle.h
@@ -89,6 +89,7 @@ class Demangler {
void demangleGenericArg();
void demangleType();
void demangleFnSig();
+ void demangleDynBounds();
void demangleOptionalBinder();
void demangleConst();
void demangleConstInt();
diff --git a/llvm/lib/Demangle/RustDemangle.cpp b/llvm/lib/Demangle/RustDemangle.cpp
index d6cf78bb654e..04bc175c3b82 100644
--- a/llvm/lib/Demangle/RustDemangle.cpp
+++ b/llvm/lib/Demangle/RustDemangle.cpp
@@ -480,6 +480,17 @@ void Demangler::demangleType() {
case 'F':
demangleFnSig();
break;
+ case 'D':
+ demangleDynBounds();
+ if (consumeIf('L')) {
+ if (auto Lifetime = parseBase62Number()) {
+ print(" + ");
+ printLifetime(Lifetime);
+ }
+ } else {
+ Error = true;
+ }
+ break;
default:
Position = Start;
demanglePath(rust_demangle::InType::Yes);
@@ -529,6 +540,16 @@ void Demangler::demangleFnSig() {
}
}
+// <dyn-bounds> = [<binder>] {<dyn-trait>} "E"
+void Demangler::demangleDynBounds() {
+ SwapAndRestore<size_t> SaveBoundLifetimes(BoundLifetimes, BoundLifetimes);
+ print("dyn ");
+ demangleOptionalBinder();
+ // FIXME demangle {dyn-trait}
+ if (!consumeIf('E'))
+ Error = true;
+}
+
// Demangles optional binder and updates the number of bound lifetimes.
//
// <binder> = "G" <base-62-number>
diff --git a/llvm/test/Demangle/rust.test b/llvm/test/Demangle/rust.test
index c13d8f5d4e8b..caded76e11be 100644
--- a/llvm/test/Demangle/rust.test
+++ b/llvm/test/Demangle/rust.test
@@ -232,6 +232,22 @@ CHECK: function::<extern "cdecl" fn()>
CHECK: function::<unsafe extern "C-cmse-nonsecure-call" fn()>
_RIC8functionFUK21C_cmse_nonsecure_callEuE
+; Trait objects
+
+CHECK: trait::<dyn >
+ _RIC5traitDEL_E
+
+CHECK: trait::<dyn for<'a> >
+ _RIC5traitDG_EL_E
+
+CHECK: trait::<for<'a> fn(dyn for<'b> + 'a)>
+ _RIC5traitFG_DG_EL0_EuE
+
+; Invalid trait object, missing lifetime.
+
+CHECK: _RIC5traitDEE
+ _RIC5traitDEE
+
; Binders
CHECK: binders::<for<'a> fn(&'a _)>
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