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Shell: Add a 'for' loop

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Closes #2760.
This commit adds a 'for' loop, and tweaks the syntax slightly to make &&
bind more tightly than || (allowing for `expr && if_ok || if_bad`) :^)
This commit is contained in:
AnotherTest 2020-07-12 01:42:46 +04:30 • committed by Andreas Kling
parent 95fc7dd03a
commit b6066faa1f
Notes: sideshowbarker 2024-07-19 04:46:41 +09:00
6 changed files with 334 additions and 46 deletions
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27
Shell/Shell.h
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@ -93,6 +93,29 @@ public:
void set_local_variable(const String&, RefPtr<AST::Value>);
void unset_local_variable(const String&);
struct LocalFrame {
HashMap<String, RefPtr<AST::Value>> local_variables;
};
struct Frame {
Frame(Vector<LocalFrame>& frames, const LocalFrame& frame)
: frames(frames)
, frame(frame)
{
}
~Frame();
void leak_frame() { should_destroy_frame = false; }
private:
Vector<LocalFrame>& frames;
const LocalFrame& frame;
bool should_destroy_frame { true };
};
[[nodiscard]] Frame push_frame();
void pop_frame();
static String escape_token(const String& token);
static String unescape_token(const String& token);
@ -166,6 +189,7 @@ private:
void cache_path();
void stop_all_jobs();
const Job* m_current_job { nullptr };
LocalFrame* find_frame_containing_local_variable(const String& name);
virtual void custom_event(Core::CustomEvent&) override;
@ -188,7 +212,8 @@ private:
bool m_should_ignore_jobs_on_next_exit { false };
pid_t m_pid { 0 };
HashMap<String, RefPtr<AST::Value>> m_local_variables;
Vector<LocalFrame> m_local_frames;
HashMap<String, String> m_aliases;
};