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Shell: Use StringView instead of String const& where feasible

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Daniel Bertalan 2022-01-29 16:24:01 +01:00 • committed by Andreas Kling
parent 1a4aad9b7e
commit 5b64abe76e
4 changed files with 68 additions and 78 deletions
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54
Userland/Shell/Shell.h
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2020-2021, the SerenityOS developers.
* Copyright (c) 2020-2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -8,11 +8,13 @@
#include "Job.h"
#include "Parser.h"
#include <AK/Array.h>
#include <AK/CircularQueue.h>
#include <AK/HashMap.h>
#include <AK/NonnullOwnPtrVector.h>
#include <AK/String.h>
#include <AK/StringBuilder.h>
#include <AK/StringView.h>
#include <AK/Types.h>
#include <AK/Vector.h>
#include <LibCore/Notifier.h>
@ -99,25 +101,25 @@ public:
void block_on_pipeline(RefPtr<AST::Pipeline>);
String prompt() const;
static String expand_tilde(const String&);
static String expand_tilde(StringView expression);
static Vector<String> expand_globs(StringView path, StringView base);
static Vector<String> expand_globs(Vector<StringView> path_segments, StringView base);
Vector<AST::Command> expand_aliases(Vector<AST::Command>);
String resolve_path(String) const;
String resolve_alias(const String&) const;
String resolve_alias(StringView) const;
static String find_in_path(StringView program_name);
static bool has_history_event(StringView);
RefPtr<AST::Value> get_argument(size_t) const;
RefPtr<AST::Value> lookup_local_variable(const String&) const;
String local_variable_or(const String&, const String&) const;
RefPtr<AST::Value> lookup_local_variable(StringView) const;
String local_variable_or(StringView, const String&) const;
void set_local_variable(const String&, RefPtr<AST::Value>, bool only_in_current_frame = false);
void unset_local_variable(const String&, bool only_in_current_frame = false);
void unset_local_variable(StringView, bool only_in_current_frame = false);
void define_function(String name, Vector<String> argnames, RefPtr<AST::Node> body);
bool has_function(const String&);
bool has_function(StringView);
bool invoke_function(const AST::Command&, int& retval);
String format(StringView, ssize_t& cursor) const;
@ -154,10 +156,10 @@ public:
[[nodiscard]] Frame push_frame(String name);
void pop_frame();
static String escape_token_for_double_quotes(const String& token);
static String escape_token_for_single_quotes(const String& token);
static String escape_token(const String& token);
static String unescape_token(const String& token);
static String escape_token_for_double_quotes(StringView token);
static String escape_token_for_single_quotes(StringView token);
static String escape_token(StringView token);
static String unescape_token(StringView token);
enum class SpecialCharacterEscapeMode {
Untouched,
Escaped,
@ -176,12 +178,12 @@ public:
void highlight(Line::Editor&) const;
Vector<Line::CompletionSuggestion> complete();
Vector<Line::CompletionSuggestion> complete_path(const String& base, const String&, size_t offset, ExecutableOnly executable_only);
Vector<Line::CompletionSuggestion> complete_program_name(const String&, size_t offset);
Vector<Line::CompletionSuggestion> complete_variable(const String&, size_t offset);
Vector<Line::CompletionSuggestion> complete_user(const String&, size_t offset);
Vector<Line::CompletionSuggestion> complete_option(const String&, const String&, size_t offset);
Vector<Line::CompletionSuggestion> complete_immediate_function_name(const String&, size_t offset);
Vector<Line::CompletionSuggestion> complete_path(StringView base, StringView, size_t offset, ExecutableOnly executable_only);
Vector<Line::CompletionSuggestion> complete_program_name(StringView, size_t offset);
Vector<Line::CompletionSuggestion> complete_variable(StringView, size_t offset);
Vector<Line::CompletionSuggestion> complete_user(StringView, size_t offset);
Vector<Line::CompletionSuggestion> complete_option(StringView, StringView, size_t offset);
Vector<Line::CompletionSuggestion> complete_immediate_function_name(StringView, size_t offset);
void restore_ios();
@ -191,7 +193,7 @@ public:
void kill_job(const Job*, int sig);
String get_history_path();
void print_path(const String& path);
void print_path(StringView path);
bool read_single_line();
@ -293,14 +295,14 @@ private:
void save_to(JsonObject&);
void bring_cursor_to_beginning_of_a_line() const;
Optional<int> resolve_job_spec(const String&);
Optional<int> resolve_job_spec(StringView);
void cache_path();
void add_entry_to_cache(const String&);
void remove_entry_from_cache(const String&);
void remove_entry_from_cache(StringView);
void stop_all_jobs();
const Job* m_current_job { nullptr };
LocalFrame* find_frame_containing_local_variable(const String& name);
const LocalFrame* find_frame_containing_local_variable(const String& name) const
LocalFrame* find_frame_containing_local_variable(StringView name);
const LocalFrame* find_frame_containing_local_variable(StringView name) const
{
return const_cast<Shell*>(this)->find_frame_containing_local_variable(name);
}
@ -328,14 +330,14 @@ private:
#undef __ENUMERATE_SHELL_BUILTIN
constexpr static const char* builtin_names[] = {
#define __ENUMERATE_SHELL_BUILTIN(builtin) #builtin,
static constexpr Array builtin_names = {
#define __ENUMERATE_SHELL_BUILTIN(builtin) #builtin##sv,
ENUMERATE_SHELL_BUILTINS()
#undef __ENUMERATE_SHELL_BUILTIN
":", // POSIX-y name for "noop".
":"sv, // POSIX-y name for "noop".
};
bool m_should_ignore_jobs_on_next_exit { false };
@ -376,7 +378,7 @@ private:
return c == '_' || (c <= 'Z' && c >= 'A') || (c <= 'z' && c >= 'a') || (c <= '9' && c >= '0');
}
inline size_t find_offset_into_node(const String& unescaped_text, size_t escaped_offset)
inline size_t find_offset_into_node(StringView unescaped_text, size_t escaped_offset)
{
size_t unescaped_offset = 0;
size_t offset = 0;