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Shell: Place all variables in the closest nonlocal frame in POSIX mode

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This commit is contained in:
Ali Mohammad Pur 2023-04-19 12:21:03 +03:30 • committed by Ali Mohammad Pur
parent 0d8b90aec6
commit 1403e56535
2 changed files with 23 additions and 8 deletions
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21
Userland/Shell/Shell.cpp
View file

@ -407,7 +407,16 @@ void Shell::set_local_variable(DeprecatedString const& name, RefPtr<AST::Value>
} }
} }
m_local_frames.last()->local_variables.set(name, move(value)); LocalFrame* selected_frame = nullptr;
if (m_in_posix_mode) {
// POSIX mode: Drop everything in the closest function frame (or the global frame if there is no function frame).
auto& closest_function_frame = m_local_frames.last_matching([](auto& frame) { return frame->is_function_frame; }).value();
selected_frame = closest_function_frame.ptr();
} else {
selected_frame = m_local_frames.last().ptr();
}
selected_frame->local_variables.set(name, move(value));
} }
void Shell::unset_local_variable(StringView name, bool only_in_current_frame) void Shell::unset_local_variable(StringView name, bool only_in_current_frame)
@ -458,7 +467,7 @@ bool Shell::invoke_function(const AST::Command& command, int& retval)
return true; return true;
} }
auto frame = push_frame(DeprecatedString::formatted("function {}", function.name)); auto frame = push_frame(DeprecatedString::formatted("function {}", function.name), LocalFrameKind::FunctionOrGlobal);
size_t index = 0; size_t index = 0;
for (auto& arg : function.arguments) { for (auto& arg : function.arguments) {
++index; ++index;
@ -487,9 +496,9 @@ DeprecatedString Shell::format(StringView source, ssize_t& cursor) const
return result; return result;
} }
Shell::Frame Shell::push_frame(DeprecatedString name) Shell::Frame Shell::push_frame(DeprecatedString name, Shell::LocalFrameKind kind)
{ {
m_local_frames.append(make<LocalFrame>(name, decltype(LocalFrame::local_variables) {})); m_local_frames.append(make<LocalFrame>(name, decltype(LocalFrame::local_variables) {}, kind));
dbgln_if(SH_DEBUG, "New frame '{}' at {:p}", name, &m_local_frames.last()); dbgln_if(SH_DEBUG, "New frame '{}' at {:p}", name, &m_local_frames.last());
return { m_local_frames, *m_local_frames.last() }; return { m_local_frames, *m_local_frames.last() };
} }
@ -2179,7 +2188,7 @@ void Shell::notify_child_event()
Shell::Shell() Shell::Shell()
: m_default_constructed(true) : m_default_constructed(true)
{ {
push_frame("main").leak_frame(); push_frame("main", LocalFrameKind::FunctionOrGlobal).leak_frame();
int rc = gethostname(hostname, Shell::HostNameSize); int rc = gethostname(hostname, Shell::HostNameSize);
if (rc < 0) if (rc < 0)
@ -2223,7 +2232,7 @@ Shell::Shell(Line::Editor& editor, bool attempt_interactive, bool posix_mode)
tcsetpgrp(0, getpgrp()); tcsetpgrp(0, getpgrp());
m_pid = getpid(); m_pid = getpid();
push_frame("main").leak_frame(); push_frame("main", LocalFrameKind::FunctionOrGlobal).leak_frame();
int rc = gethostname(hostname, Shell::HostNameSize); int rc = gethostname(hostname, Shell::HostNameSize);
if (rc < 0) if (rc < 0)

10
Userland/Shell/Shell.h
View file

@ -191,15 +191,21 @@ public:
RefPtr<Line::Editor> editor() const { return m_editor; } RefPtr<Line::Editor> editor() const { return m_editor; }
enum class LocalFrameKind {
FunctionOrGlobal,
Block,
};
struct LocalFrame { struct LocalFrame {
LocalFrame(DeprecatedString name, HashMap<DeprecatedString, RefPtr<AST::Value>> variables) LocalFrame(DeprecatedString name, HashMap<DeprecatedString, RefPtr<AST::Value>> variables, LocalFrameKind kind = LocalFrameKind::Block)
: name(move(name)) : name(move(name))
, local_variables(move(variables)) , local_variables(move(variables))
, is_function_frame(kind == LocalFrameKind::FunctionOrGlobal)
{ {
} }
DeprecatedString name; DeprecatedString name;
HashMap<DeprecatedString, RefPtr<AST::Value>> local_variables; HashMap<DeprecatedString, RefPtr<AST::Value>> local_variables;
bool is_function_frame;
}; };
struct Frame { struct Frame {
@ -218,7 +224,7 @@ public:
bool should_destroy_frame { true }; bool should_destroy_frame { true };
}; };
[[nodiscard]] Frame push_frame(DeprecatedString name); [[nodiscard]] Frame push_frame(DeprecatedString name, LocalFrameKind = LocalFrameKind::Block);
void pop_frame(); void pop_frame();
struct Promise { struct Promise {