kastiglione updated this revision to Diff 498054.
kastiglione added a comment.
Use only a subset of expression flags.
Specifically, don't expose `--debug`/`-g` or `--top-level`/`-p`. These, unlike
the other `expression` flags, the semantics of these flags would seem to force
`expression` evaluation. In which case, user should use `expression` directly.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D144114/new/
https://reviews.llvm.org/D144114
Files:
lldb/source/Commands/CommandObjectDWIMPrint.cpp
lldb/source/Commands/CommandObjectDWIMPrint.h
lldb/source/Commands/CommandObjectExpression.cpp
lldb/source/Commands/CommandObjectExpression.h
lldb/test/API/commands/dwim-print/TestDWIMPrint.py
Index: lldb/test/API/commands/dwim-print/TestDWIMPrint.py
===================================================================
--- lldb/test/API/commands/dwim-print/TestDWIMPrint.py
+++ lldb/test/API/commands/dwim-print/TestDWIMPrint.py
@@ -103,3 +103,10 @@
lldbutil.run_to_name_breakpoint(self, "main")
self._expect_cmd(f"dwim-print -T -- argc", "frame variable")
self._expect_cmd(f"dwim-print -T -- argc + 1", "expression")
+
+ def test_expression_language(self):
+ """Test that the language flag doesn't affect the choice of command."""
+ self.build()
+ lldbutil.run_to_name_breakpoint(self, "main")
+ self._expect_cmd(f"dwim-print -l c++ -- argc", "frame variable")
+ self._expect_cmd(f"dwim-print -l c++ -- argc + 1", "expression")
Index: lldb/source/Commands/CommandObjectExpression.h
===================================================================
--- lldb/source/Commands/CommandObjectExpression.h
+++ lldb/source/Commands/CommandObjectExpression.h
@@ -35,6 +35,12 @@
void OptionParsingStarting(ExecutionContext *execution_context) override;
+ /// Return the appropriate expression options used for evaluating the
+ /// expression in the given target.
+ EvaluateExpressionOptions
+ GetEvalateExpressionOptions(const Target &target, bool use_objc,
+ lldb::DynamicValueType use_dynamic);
+
bool top_level;
bool unwind_on_error;
bool ignore_breakpoints;
@@ -67,10 +73,6 @@
bool DoExecute(llvm::StringRef command, CommandReturnObject &result) override;
- /// Return the appropriate expression options used for evaluating the
- /// expression in the given target.
- EvaluateExpressionOptions GetEvalOptions(const Target &target);
-
/// Evaluates the given expression.
/// \param output_stream The stream to which the evaluation result will be
/// printed.
Index: lldb/source/Commands/CommandObjectExpression.cpp
===================================================================
--- lldb/source/Commands/CommandObjectExpression.cpp
+++ lldb/source/Commands/CommandObjectExpression.cpp
@@ -181,6 +181,48 @@
return llvm::ArrayRef(g_expression_options);
}
+EvaluateExpressionOptions
+CommandObjectExpression::CommandOptions::GetEvalateExpressionOptions(
+ const Target &target, bool use_objc, lldb::DynamicValueType use_dynamic) {
+ EvaluateExpressionOptions options;
+ options.SetCoerceToId(use_objc);
+ if (m_verbosity == eLanguageRuntimeDescriptionDisplayVerbosityCompact)
+ options.SetSuppressPersistentResult(use_objc);
+ options.SetUnwindOnError(unwind_on_error);
+ options.SetIgnoreBreakpoints(ignore_breakpoints);
+ options.SetKeepInMemory(true);
+ options.SetUseDynamic(use_dynamic);
+ options.SetTryAllThreads(try_all_threads);
+ options.SetDebug(debug);
+ options.SetLanguage(language);
+ options.SetExecutionPolicy(
+ allow_jit ? EvaluateExpressionOptions::default_execution_policy
+ : lldb_private::eExecutionPolicyNever);
+
+ bool auto_apply_fixits;
+ if (this->auto_apply_fixits == eLazyBoolCalculate)
+ auto_apply_fixits = target.GetEnableAutoApplyFixIts();
+ else
+ auto_apply_fixits = this->auto_apply_fixits == eLazyBoolYes;
+
+ options.SetAutoApplyFixIts(auto_apply_fixits);
+ options.SetRetriesWithFixIts(target.GetNumberOfRetriesWithFixits());
+
+ if (top_level)
+ options.SetExecutionPolicy(eExecutionPolicyTopLevel);
+
+ // If there is any chance we are going to stop and want to see what went
+ // wrong with our expression, we should generate debug info
+ if (!ignore_breakpoints || !unwind_on_error)
+ options.SetGenerateDebugInfo(true);
+
+ if (timeout > 0)
+ options.SetTimeout(std::chrono::microseconds(timeout));
+ else
+ options.SetTimeout(std::nullopt);
+ return options;
+}
+
CommandObjectExpression::CommandObjectExpression(
CommandInterpreter &interpreter)
: CommandObjectRaw(interpreter, "expression",
@@ -343,50 +385,6 @@
return Status();
}
-EvaluateExpressionOptions
-CommandObjectExpression::GetEvalOptions(const Target &target) {
- EvaluateExpressionOptions options;
- options.SetCoerceToId(m_varobj_options.use_objc);
- if (m_command_options.m_verbosity ==
- eLanguageRuntimeDescriptionDisplayVerbosityCompact)
- options.SetSuppressPersistentResult(m_varobj_options.use_objc);
- options.SetUnwindOnError(m_command_options.unwind_on_error);
- options.SetIgnoreBreakpoints(m_command_options.ignore_breakpoints);
- options.SetKeepInMemory(true);
- options.SetUseDynamic(m_varobj_options.use_dynamic);
- options.SetTryAllThreads(m_command_options.try_all_threads);
- options.SetDebug(m_command_options.debug);
- options.SetLanguage(m_command_options.language);
- options.SetExecutionPolicy(
- m_command_options.allow_jit
- ? EvaluateExpressionOptions::default_execution_policy
- : lldb_private::eExecutionPolicyNever);
-
- bool auto_apply_fixits;
- if (m_command_options.auto_apply_fixits == eLazyBoolCalculate)
- auto_apply_fixits = target.GetEnableAutoApplyFixIts();
- else
- auto_apply_fixits = m_command_options.auto_apply_fixits == eLazyBoolYes;
-
- options.SetAutoApplyFixIts(auto_apply_fixits);
- options.SetRetriesWithFixIts(target.GetNumberOfRetriesWithFixits());
-
- if (m_command_options.top_level)
- options.SetExecutionPolicy(eExecutionPolicyTopLevel);
-
- // If there is any chance we are going to stop and want to see what went
- // wrong with our expression, we should generate debug info
- if (!m_command_options.ignore_breakpoints ||
- !m_command_options.unwind_on_error)
- options.SetGenerateDebugInfo(true);
-
- if (m_command_options.timeout > 0)
- options.SetTimeout(std::chrono::microseconds(m_command_options.timeout));
- else
- options.SetTimeout(std::nullopt);
- return options;
-}
-
bool CommandObjectExpression::EvaluateExpression(llvm::StringRef expr,
Stream &output_stream,
Stream &error_stream,
@@ -407,7 +405,9 @@
return false;
}
- const EvaluateExpressionOptions options = GetEvalOptions(target);
+ const EvaluateExpressionOptions options =
+ m_command_options.GetEvalateExpressionOptions(
+ target, m_varobj_options.use_objc, m_varobj_options.use_dynamic);
ExpressionResults success = target.EvaluateExpression(
expr, frame, result_valobj_sp, options, &m_fixed_expression);
Index: lldb/source/Commands/CommandObjectDWIMPrint.h
===================================================================
--- lldb/source/Commands/CommandObjectDWIMPrint.h
+++ lldb/source/Commands/CommandObjectDWIMPrint.h
@@ -9,6 +9,7 @@
#ifndef LLDB_SOURCE_COMMANDS_COMMANDOBJECTDWIMPRINT_H
#define LLDB_SOURCE_COMMANDS_COMMANDOBJECTDWIMPRINT_H
+#include "CommandObjectExpression.h"
#include "lldb/Interpreter/CommandObject.h"
#include "lldb/Interpreter/OptionGroupFormat.h"
#include "lldb/Interpreter/OptionGroupValueObjectDisplay.h"
@@ -37,11 +38,17 @@
Options *GetOptions() override;
private:
+ class CommandOptions : public CommandObjectExpression::CommandOptions {
+ public:
+ llvm::ArrayRef<OptionDefinition> GetDefinitions() override;
+ };
+
bool DoExecute(llvm::StringRef command, CommandReturnObject &result) override;
OptionGroupOptions m_option_group;
OptionGroupFormat m_format_options = lldb::eFormatDefault;
OptionGroupValueObjectDisplay m_varobj_options;
+ CommandOptions m_expr_options;
};
} // namespace lldb_private
Index: lldb/source/Commands/CommandObjectDWIMPrint.cpp
===================================================================
--- lldb/source/Commands/CommandObjectDWIMPrint.cpp
+++ lldb/source/Commands/CommandObjectDWIMPrint.cpp
@@ -22,6 +22,7 @@
#include "lldb/lldb-forward.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/FormatVariadic.h"
+#include "llvm/Support/Threading.h"
using namespace llvm;
using namespace lldb;
@@ -36,6 +37,7 @@
OptionGroupFormat::OPTION_GROUP_FORMAT |
OptionGroupFormat::OPTION_GROUP_GDB_FMT,
LLDB_OPT_SET_1);
+ m_option_group.Append(&m_expr_options);
m_option_group.Append(&m_varobj_options, LLDB_OPT_SET_ALL, LLDB_OPT_SET_1);
m_option_group.Finalize();
}
@@ -57,11 +59,11 @@
m_cmd_name);
return false;
}
+
auto verbosity = GetDebugger().GetDWIMPrintVerbosity();
DumpValueObjectOptions dump_options = m_varobj_options.GetAsDumpOptions(
- eLanguageRuntimeDescriptionDisplayVerbosityFull,
- m_format_options.GetFormat());
+ m_expr_options.m_verbosity, m_format_options.GetFormat());
// First, try `expr` as the name of a frame variable.
if (StackFrame *frame = m_exe_ctx.GetFramePtr()) {
@@ -87,9 +89,13 @@
Target &target = target_ptr ? *target_ptr : GetDummyTarget();
auto *exe_scope = m_exe_ctx.GetBestExecutionContextScope();
+ const EvaluateExpressionOptions eval_options =
+ m_expr_options.GetEvalateExpressionOptions(
+ target, m_varobj_options.use_objc, m_varobj_options.use_dynamic);
ValueObjectSP valobj_sp;
- if (target.EvaluateExpression(expr, exe_scope, valobj_sp) ==
- eExpressionCompleted) {
+ ExpressionResults expr_result =
+ target.EvaluateExpression(expr, exe_scope, valobj_sp, eval_options);
+ if (expr_result == eExpressionCompleted) {
if (verbosity != eDWIMPrintVerbosityNone) {
StringRef flags;
if (args.HasArgs())
@@ -110,3 +116,22 @@
}
}
}
+
+llvm::ArrayRef<OptionDefinition>
+CommandObjectDWIMPrint::CommandOptions::GetDefinitions() {
+ static std::vector<OptionDefinition> g_dwim_print_definitions;
+
+ static llvm::once_flag once_flag;
+ llvm::call_once(once_flag, [this]() {
+ auto expression_definitions =
+ CommandObjectExpression::CommandOptions::GetDefinitions();
+ for (auto &&definition : expression_definitions) {
+ // Filter out --debug/-g and --top-level/-p
+ if (definition.short_option != 'g' && definition.short_option != 'p') {
+ g_dwim_print_definitions.push_back(definition);
+ }
+ }
+ });
+
+ return g_dwim_print_definitions;
+}
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