intel/llvm
1
0
Fork 0
mirror of https://github.com/intel/llvm.git synced 2026-01-17 06:40:01 +08:00
Code Issues Packages Projects Releases Wiki Activity

Support expressions in the context of a reference

Browse Source 
...type variable by dereferencing the variable before
evaluating the expression.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D128126
This commit is contained in:
Emre Kultursay
2022-06-21 14:28:53 +02:00
committed by Pavel Labath
parent ed63fcb232
commit 6a85b9d163
3 changed files with 44 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
lldb/source/Expression/UserExpression.cpp
View File

@@ -145,8 +145,9 @@ UserExpression::Evaluate(ExecutionContext &exe_ctx,
Log *log(GetLog(LLDBLog::Expressions | LLDBLog::Step));
if (ctx_obj) {
static unsigned const ctx_type_mask =
lldb::TypeFlags::eTypeIsClass | lldb::TypeFlags::eTypeIsStructUnion;
static unsigned const ctx_type_mask = lldb::TypeFlags::eTypeIsClass |
lldb::TypeFlags::eTypeIsStructUnion |
lldb::TypeFlags::eTypeIsReference;
if (!(ctx_obj->GetTypeInfo() & ctx_type_mask)) {
LLDB_LOG(log, "== [UserExpression::Evaluate] Passed a context object of "
"an invalid type, can't run expressions.");
@@ -155,6 +156,21 @@ UserExpression::Evaluate(ExecutionContext &exe_ctx,
}
}
if (ctx_obj && ctx_obj->GetTypeInfo() & lldb::TypeFlags::eTypeIsReference) {
Status error;
lldb::ValueObjectSP deref_ctx_sp = ctx_obj->Dereference(error);
if (!error.Success()) {
LLDB_LOG(log, "== [UserExpression::Evaluate] Passed a context object of "
"a reference type that can't be dereferenced, can't run "
"expressions.");
error.SetErrorString(
"passed context object of an reference type cannot be deferenced");
return lldb::eExpressionSetupError;
}
ctx_obj = deref_ctx_sp.get();
}
lldb_private::ExecutionPolicy execution_policy = options.GetExecutionPolicy();
lldb::LanguageType language = options.GetLanguage();
const ResultType desired_type = options.DoesCoerceToId()