mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-11 01:06:01 +03:00
3048274f5e
Closes #4283. Heredocs are implemented in a way that makes them feel more like a string (and not a weird redirection, a la bash). There are two tunables, whether the string is dedented (`<<-` vs `<<~`) and whether it allows interpolation (quoted key vs not). To the familiar people, this is how Ruby handles them, and I feel is the most elegant heredoc syntax. Unlike the oddjob that is bash, heredocs are treated exactly as normal strings, and can be used _anywhere_ where a string can be used. They are *required* to appear in the same order as used after a newline is seen when parsing the sequence that the heredoc is used in. For instance: ```sh echo <<-doc1 <<-doc2 | blah blah contents for doc1 doc1 contents for doc2 doc2 ``` The typical nice errors are also implemented :^)
3509 lines
107 KiB
C++
3509 lines
107 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "AST.h"
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#include "Shell.h"
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#include <AK/MemoryStream.h>
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#include <AK/ScopeGuard.h>
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#include <AK/ScopedValueRollback.h>
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#include <AK/String.h>
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#include <AK/StringBuilder.h>
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#include <AK/URL.h>
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#include <LibCore/EventLoop.h>
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#include <LibCore/File.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <unistd.h>
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void AK::Formatter<Shell::AST::Command>::format(FormatBuilder& builder, const Shell::AST::Command& value)
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{
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if (m_sign_mode != FormatBuilder::SignMode::Default)
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VERIFY_NOT_REACHED();
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if (m_alternative_form)
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VERIFY_NOT_REACHED();
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if (m_zero_pad)
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VERIFY_NOT_REACHED();
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if (m_mode != Mode::Default && m_mode != Mode::String)
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VERIFY_NOT_REACHED();
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if (m_width.has_value())
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VERIFY_NOT_REACHED();
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if (m_precision.has_value())
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VERIFY_NOT_REACHED();
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if (value.argv.is_empty()) {
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builder.put_literal("(ShellInternal)");
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} else {
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bool first = true;
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for (auto& arg : value.argv) {
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if (!first)
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builder.put_literal(" ");
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first = false;
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builder.put_literal(arg);
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}
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}
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for (auto& redir : value.redirections) {
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builder.put_padding(' ', 1);
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if (redir.is_path_redirection()) {
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auto path_redir = (const Shell::AST::PathRedirection*)&redir;
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builder.put_i64(path_redir->fd);
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switch (path_redir->direction) {
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case Shell::AST::PathRedirection::Read:
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builder.put_literal("<");
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break;
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case Shell::AST::PathRedirection::Write:
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builder.put_literal(">");
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break;
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case Shell::AST::PathRedirection::WriteAppend:
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builder.put_literal(">>");
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break;
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case Shell::AST::PathRedirection::ReadWrite:
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builder.put_literal("<>");
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break;
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}
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builder.put_literal(path_redir->path);
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} else if (redir.is_fd_redirection()) {
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auto* fdredir = (const Shell::AST::FdRedirection*)&redir;
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builder.put_i64(fdredir->new_fd);
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builder.put_literal(">");
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builder.put_i64(fdredir->old_fd);
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} else if (redir.is_close_redirection()) {
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auto close_redir = (const Shell::AST::CloseRedirection*)&redir;
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builder.put_i64(close_redir->fd);
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builder.put_literal(">&-");
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} else {
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VERIFY_NOT_REACHED();
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}
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}
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if (!value.next_chain.is_empty()) {
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for (auto& command : value.next_chain) {
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switch (command.action) {
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case Shell::AST::NodeWithAction::And:
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builder.put_literal(" && ");
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break;
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case Shell::AST::NodeWithAction::Or:
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builder.put_literal(" || ");
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break;
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case Shell::AST::NodeWithAction::Sequence:
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builder.put_literal("; ");
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break;
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}
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builder.put_literal("(");
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builder.put_literal(command.node->class_name());
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builder.put_literal("...)");
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}
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}
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if (!value.should_wait)
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builder.put_literal("&");
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}
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namespace Shell::AST {
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static inline void print_indented(const String& str, int indent)
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{
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dbgln("{}{}", String::repeated(' ', indent * 2), str);
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}
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static inline Optional<Position> merge_positions(const Optional<Position>& left, const Optional<Position>& right)
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{
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if (!left.has_value())
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return right;
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if (!right.has_value())
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return left;
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return Position {
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.start_offset = left->start_offset,
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.end_offset = right->end_offset,
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.start_line = left->start_line,
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.end_line = right->end_line,
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};
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}
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static inline Vector<Command> join_commands(Vector<Command> left, Vector<Command> right)
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{
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Command command;
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auto last_in_left = left.take_last();
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auto first_in_right = right.take_first();
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command.argv.append(last_in_left.argv);
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command.argv.append(first_in_right.argv);
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command.redirections.append(last_in_left.redirections);
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command.redirections.append(first_in_right.redirections);
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command.should_wait = first_in_right.should_wait && last_in_left.should_wait;
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command.is_pipe_source = first_in_right.is_pipe_source;
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command.should_notify_if_in_background = first_in_right.should_notify_if_in_background || last_in_left.should_notify_if_in_background;
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command.position = merge_positions(last_in_left.position, first_in_right.position);
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Vector<Command> commands;
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commands.append(left);
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commands.append(command);
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commands.append(right);
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return commands;
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}
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static String resolve_slices(RefPtr<Shell> shell, String&& input_value, NonnullRefPtrVector<Slice> slices)
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{
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if (slices.is_empty())
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return move(input_value);
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for (auto& slice : slices) {
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auto value = slice.run(shell);
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if (!value) {
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shell->raise_error(Shell::ShellError::InvalidSliceContentsError, "Invalid slice contents", slice.position());
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return move(input_value);
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}
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auto index_values = value->resolve_as_list(shell);
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Vector<size_t> indices;
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indices.ensure_capacity(index_values.size());
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size_t i = 0;
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for (auto& value : index_values) {
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auto maybe_index = value.to_int();
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if (!maybe_index.has_value()) {
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shell->raise_error(Shell::ShellError::InvalidSliceContentsError, String::formatted("Invalid value in slice index {}: {} (expected a number)", i, value), slice.position());
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return move(input_value);
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}
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++i;
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auto index = maybe_index.value();
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auto original_index = index;
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if (index < 0)
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index += input_value.length();
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if (index < 0 || (size_t)index >= input_value.length()) {
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shell->raise_error(Shell::ShellError::InvalidSliceContentsError, String::formatted("Slice index {} (evaluated as {}) out of value bounds [0-{})", index, original_index, input_value.length()), slice.position());
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return move(input_value);
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}
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indices.unchecked_append(index);
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}
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StringBuilder builder { indices.size() };
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for (auto& index : indices)
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builder.append(input_value[index]);
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input_value = builder.build();
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}
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return move(input_value);
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}
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static Vector<String> resolve_slices(RefPtr<Shell> shell, Vector<String>&& values, NonnullRefPtrVector<Slice> slices)
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{
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if (slices.is_empty())
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return move(values);
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for (auto& slice : slices) {
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auto value = slice.run(shell);
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if (!value) {
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shell->raise_error(Shell::ShellError::InvalidSliceContentsError, "Invalid slice contents", slice.position());
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return move(values);
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}
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auto index_values = value->resolve_as_list(shell);
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Vector<size_t> indices;
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indices.ensure_capacity(index_values.size());
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size_t i = 0;
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for (auto& value : index_values) {
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auto maybe_index = value.to_int();
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if (!maybe_index.has_value()) {
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shell->raise_error(Shell::ShellError::InvalidSliceContentsError, String::formatted("Invalid value in slice index {}: {} (expected a number)", i, value), slice.position());
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return move(values);
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}
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++i;
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auto index = maybe_index.value();
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auto original_index = index;
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if (index < 0)
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index += values.size();
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if (index < 0 || (size_t)index >= values.size()) {
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shell->raise_error(Shell::ShellError::InvalidSliceContentsError, String::formatted("Slice index {} (evaluated as {}) out of value bounds [0-{})", index, original_index, values.size()), slice.position());
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return move(values);
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}
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indices.unchecked_append(index);
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}
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Vector<String> result;
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result.ensure_capacity(indices.size());
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for (auto& index : indices)
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result.unchecked_append(values[index]);
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values = move(result);
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}
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return move(values);
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}
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void Node::clear_syntax_error()
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{
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m_syntax_error_node->clear_syntax_error();
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}
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void Node::set_is_syntax_error(const SyntaxError& error_node)
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{
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if (!m_syntax_error_node) {
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m_syntax_error_node = error_node;
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} else {
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m_syntax_error_node->set_is_syntax_error(error_node);
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}
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}
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bool Node::is_syntax_error() const
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{
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return m_syntax_error_node && m_syntax_error_node->is_syntax_error();
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}
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void Node::for_each_entry(RefPtr<Shell> shell, Function<IterationDecision(NonnullRefPtr<Value>)> callback)
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{
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auto value = run(shell)->resolve_without_cast(shell);
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if (value->is_job()) {
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callback(value);
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return;
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}
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if (value->is_list_without_resolution()) {
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auto list = value->resolve_without_cast(shell);
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for (auto& element : static_cast<ListValue*>(list.ptr())->values()) {
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if (callback(element) == IterationDecision::Break)
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break;
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}
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return;
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}
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auto list = value->resolve_as_list(shell);
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for (auto& element : list) {
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if (callback(create<StringValue>(move(element))) == IterationDecision::Break)
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break;
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}
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}
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Vector<Command> Node::to_lazy_evaluated_commands(RefPtr<Shell> shell)
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{
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if (would_execute()) {
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// Wrap the node in a "should immediately execute next" command.
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return {
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Command { {}, {}, true, false, true, true, {}, { NodeWithAction(*this, NodeWithAction::Sequence) }, position() }
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};
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}
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return run(shell)->resolve_as_commands(shell);
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}
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void Node::dump(int level) const
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{
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print_indented(String::formatted("{} at {}:{} (from {}.{} to {}.{})",
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class_name().characters(),
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m_position.start_offset,
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m_position.end_offset,
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m_position.start_line.line_number,
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m_position.start_line.line_column,
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m_position.end_line.line_number,
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m_position.end_line.line_column),
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level);
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}
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Node::Node(Position position)
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: m_position(position)
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{
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}
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Vector<Line::CompletionSuggestion> Node::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
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{
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auto matching_node = hit_test_result.matching_node;
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if (matching_node) {
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if (matching_node->is_bareword()) {
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auto* node = static_cast<BarewordLiteral*>(matching_node.ptr());
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auto corrected_offset = find_offset_into_node(node->text(), offset - matching_node->position().start_offset);
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if (corrected_offset > node->text().length())
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return {};
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auto& text = node->text();
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// If the literal isn't an option, treat it as a path.
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if (!(text.starts_with("-") || text == "--" || text == "-"))
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return shell.complete_path("", text, corrected_offset, Shell::ExecutableOnly::No);
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// If the literal is an option, we have to know the program name
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// should we have no way to get that, bail early.
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if (!hit_test_result.closest_command_node)
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return {};
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auto program_name_node = hit_test_result.closest_command_node->leftmost_trivial_literal();
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if (!program_name_node)
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return {};
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String program_name;
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if (program_name_node->is_bareword())
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program_name = static_cast<BarewordLiteral*>(program_name_node.ptr())->text();
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else
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program_name = static_cast<StringLiteral*>(program_name_node.ptr())->text();
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return shell.complete_option(program_name, text, corrected_offset);
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}
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return {};
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}
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auto result = hit_test_position(offset);
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if (!result.matching_node)
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return {};
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auto node = result.matching_node;
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if (node->is_bareword() || node != result.closest_node_with_semantic_meaning)
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node = result.closest_node_with_semantic_meaning;
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if (!node)
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return {};
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return node->complete_for_editor(shell, offset, result);
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}
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Vector<Line::CompletionSuggestion> Node::complete_for_editor(Shell& shell, size_t offset)
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{
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return Node::complete_for_editor(shell, offset, { nullptr, nullptr, nullptr });
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}
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Node::~Node()
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{
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}
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void And::dump(int level) const
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{
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Node::dump(level);
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m_left->dump(level + 1);
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m_right->dump(level + 1);
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}
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RefPtr<Value> And::run(RefPtr<Shell> shell)
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{
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auto commands = m_left->to_lazy_evaluated_commands(shell);
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commands.last().next_chain.append(NodeWithAction { *m_right, NodeWithAction::And });
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return create<CommandSequenceValue>(move(commands));
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}
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void And::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
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{
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metadata.is_first_in_list = true;
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m_left->highlight_in_editor(editor, shell, metadata);
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m_right->highlight_in_editor(editor, shell, metadata);
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}
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HitTestResult And::hit_test_position(size_t offset) const
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{
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auto result = m_left->hit_test_position(offset);
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if (result.matching_node) {
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if (!result.closest_command_node)
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result.closest_command_node = m_right;
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return result;
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}
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result = m_right->hit_test_position(offset);
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if (!result.closest_command_node)
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result.closest_command_node = m_right;
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return result;
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}
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And::And(Position position, NonnullRefPtr<Node> left, NonnullRefPtr<Node> right, Position and_position)
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: Node(move(position))
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, m_left(move(left))
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, m_right(move(right))
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, m_and_position(and_position)
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{
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if (m_left->is_syntax_error())
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set_is_syntax_error(m_left->syntax_error_node());
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else if (m_right->is_syntax_error())
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set_is_syntax_error(m_right->syntax_error_node());
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}
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And::~And()
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{
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}
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void ListConcatenate::dump(int level) const
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{
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Node::dump(level);
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for (auto& element : m_list)
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element->dump(level + 1);
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}
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RefPtr<Value> ListConcatenate::run(RefPtr<Shell> shell)
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{
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RefPtr<Value> result = nullptr;
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for (auto& element : m_list) {
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if (!result) {
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result = create<ListValue>({ element->run(shell)->resolve_without_cast(shell) });
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continue;
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}
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auto element_value = element->run(shell)->resolve_without_cast(shell);
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if (result->is_command() || element_value->is_command()) {
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auto joined_commands = join_commands(result->resolve_as_commands(shell), element_value->resolve_as_commands(shell));
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if (joined_commands.size() == 1) {
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auto& command = joined_commands[0];
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command.position = position();
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result = create<CommandValue>(command);
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} else {
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result = create<CommandSequenceValue>(move(joined_commands));
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}
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} else {
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NonnullRefPtrVector<Value> values;
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if (result->is_list_without_resolution()) {
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values.append(static_cast<ListValue*>(result.ptr())->values());
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} else {
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for (auto& result : result->resolve_as_list(shell))
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values.append(create<StringValue>(result));
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}
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values.append(element_value);
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result = create<ListValue>(move(values));
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}
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}
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if (!result)
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return create<ListValue>({});
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return result;
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}
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void ListConcatenate::for_each_entry(RefPtr<Shell> shell, Function<IterationDecision(NonnullRefPtr<Value>)> callback)
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{
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for (auto& entry : m_list) {
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auto value = entry->run(shell);
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if (!value)
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continue;
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if (callback(value.release_nonnull()) == IterationDecision::Break)
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break;
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}
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}
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void ListConcatenate::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
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{
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auto first = metadata.is_first_in_list;
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metadata.is_first_in_list = false;
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metadata.is_first_in_list = first;
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for (auto& element : m_list) {
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element->highlight_in_editor(editor, shell, metadata);
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metadata.is_first_in_list = false;
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}
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}
|
|
|
|
HitTestResult ListConcatenate::hit_test_position(size_t offset) const
|
|
{
|
|
bool first = true;
|
|
for (auto& element : m_list) {
|
|
auto result = element->hit_test_position(offset);
|
|
if (!result.closest_node_with_semantic_meaning && !first)
|
|
result.closest_node_with_semantic_meaning = this;
|
|
if (result.matching_node)
|
|
return result;
|
|
first = false;
|
|
}
|
|
|
|
return {};
|
|
}
|
|
|
|
RefPtr<Node> ListConcatenate::leftmost_trivial_literal() const
|
|
{
|
|
if (m_list.is_empty())
|
|
return nullptr;
|
|
|
|
return m_list.first()->leftmost_trivial_literal();
|
|
}
|
|
|
|
ListConcatenate::ListConcatenate(Position position, Vector<NonnullRefPtr<Node>> list)
|
|
: Node(move(position))
|
|
, m_list(move(list))
|
|
{
|
|
for (auto& element : m_list) {
|
|
if (element->is_syntax_error()) {
|
|
set_is_syntax_error(element->syntax_error_node());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ListConcatenate::~ListConcatenate()
|
|
{
|
|
}
|
|
|
|
void Background::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_command->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Background::run(RefPtr<Shell> shell)
|
|
{
|
|
auto commands = m_command->to_lazy_evaluated_commands(shell);
|
|
for (auto& command : commands)
|
|
command.should_wait = false;
|
|
|
|
return create<CommandSequenceValue>(move(commands));
|
|
}
|
|
|
|
void Background::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
m_command->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Background::hit_test_position(size_t offset) const
|
|
{
|
|
return m_command->hit_test_position(offset);
|
|
}
|
|
|
|
Background::Background(Position position, NonnullRefPtr<Node> command)
|
|
: Node(move(position))
|
|
, m_command(move(command))
|
|
{
|
|
if (m_command->is_syntax_error())
|
|
set_is_syntax_error(m_command->syntax_error_node());
|
|
}
|
|
|
|
Background::~Background()
|
|
{
|
|
}
|
|
|
|
void BarewordLiteral::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(m_text, level + 1);
|
|
}
|
|
|
|
RefPtr<Value> BarewordLiteral::run(RefPtr<Shell>)
|
|
{
|
|
return create<StringValue>(m_text);
|
|
}
|
|
|
|
void BarewordLiteral::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
if (metadata.is_first_in_list) {
|
|
if (shell.is_runnable(m_text)) {
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Bold });
|
|
} else {
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Red) });
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (m_text.starts_with('-')) {
|
|
if (m_text == "--") {
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Green) });
|
|
return;
|
|
}
|
|
if (m_text == "-")
|
|
return;
|
|
|
|
if (m_text.starts_with("--")) {
|
|
auto index = m_text.index_of("=").value_or(m_text.length() - 1) + 1;
|
|
editor.stylize({ m_position.start_offset, m_position.start_offset + index }, { Line::Style::Foreground(Line::Style::XtermColor::Cyan) });
|
|
} else {
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Cyan) });
|
|
}
|
|
}
|
|
if (Core::File::exists(m_text)) {
|
|
auto realpath = shell.resolve_path(m_text);
|
|
auto url = URL::create_with_file_protocol(realpath);
|
|
url.set_host(shell.hostname);
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Hyperlink(url.to_string()) });
|
|
}
|
|
}
|
|
|
|
BarewordLiteral::BarewordLiteral(Position position, String text)
|
|
: Node(move(position))
|
|
, m_text(move(text))
|
|
{
|
|
}
|
|
|
|
BarewordLiteral::~BarewordLiteral()
|
|
{
|
|
}
|
|
|
|
void BraceExpansion::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
for (auto& entry : m_entries)
|
|
entry.dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> BraceExpansion::run(RefPtr<Shell> shell)
|
|
{
|
|
NonnullRefPtrVector<Value> values;
|
|
for (auto& entry : m_entries) {
|
|
auto value = entry.run(shell);
|
|
if (value)
|
|
values.append(value.release_nonnull());
|
|
}
|
|
|
|
return create<ListValue>(move(values));
|
|
}
|
|
|
|
HitTestResult BraceExpansion::hit_test_position(size_t offset) const
|
|
{
|
|
for (auto& entry : m_entries) {
|
|
auto result = entry.hit_test_position(offset);
|
|
if (result.matching_node) {
|
|
if (!result.closest_command_node)
|
|
result.closest_command_node = &entry;
|
|
return result;
|
|
}
|
|
}
|
|
|
|
return {};
|
|
}
|
|
|
|
void BraceExpansion::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
for (auto& entry : m_entries) {
|
|
entry.highlight_in_editor(editor, shell, metadata);
|
|
metadata.is_first_in_list = false;
|
|
}
|
|
}
|
|
|
|
BraceExpansion::BraceExpansion(Position position, NonnullRefPtrVector<Node> entries)
|
|
: Node(move(position))
|
|
, m_entries(move(entries))
|
|
{
|
|
for (auto& entry : m_entries) {
|
|
if (entry.is_syntax_error()) {
|
|
set_is_syntax_error(entry.syntax_error_node());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
BraceExpansion::~BraceExpansion()
|
|
{
|
|
}
|
|
|
|
void CastToCommand::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_inner->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> CastToCommand::run(RefPtr<Shell> shell)
|
|
{
|
|
if (m_inner->is_command())
|
|
return m_inner->run(shell);
|
|
|
|
auto value = m_inner->run(shell)->resolve_without_cast(shell);
|
|
if (value->is_command())
|
|
return value;
|
|
|
|
auto argv = value->resolve_as_list(shell);
|
|
return create<CommandValue>(move(argv), position());
|
|
}
|
|
|
|
void CastToCommand::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
m_inner->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult CastToCommand::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_inner->hit_test_position(offset);
|
|
if (!result.closest_node_with_semantic_meaning)
|
|
result.closest_node_with_semantic_meaning = this;
|
|
return result;
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> CastToCommand::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
|
|
{
|
|
auto matching_node = hit_test_result.matching_node;
|
|
if (!matching_node || !matching_node->is_bareword())
|
|
return {};
|
|
|
|
auto corrected_offset = offset - matching_node->position().start_offset;
|
|
auto* node = static_cast<BarewordLiteral*>(matching_node.ptr());
|
|
|
|
if (corrected_offset > node->text().length())
|
|
return {};
|
|
|
|
return shell.complete_program_name(node->text(), corrected_offset);
|
|
}
|
|
|
|
RefPtr<Node> CastToCommand::leftmost_trivial_literal() const
|
|
{
|
|
return m_inner->leftmost_trivial_literal();
|
|
}
|
|
|
|
CastToCommand::CastToCommand(Position position, NonnullRefPtr<Node> inner)
|
|
: Node(move(position))
|
|
, m_inner(move(inner))
|
|
{
|
|
if (m_inner->is_syntax_error())
|
|
set_is_syntax_error(m_inner->syntax_error_node());
|
|
}
|
|
|
|
CastToCommand::~CastToCommand()
|
|
{
|
|
}
|
|
|
|
void CastToList::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
if (m_inner)
|
|
m_inner->dump(level + 1);
|
|
else
|
|
print_indented("(empty)", level + 1);
|
|
}
|
|
|
|
RefPtr<Value> CastToList::run(RefPtr<Shell> shell)
|
|
{
|
|
if (!m_inner)
|
|
return create<ListValue>({});
|
|
|
|
auto inner_value = m_inner->run(shell)->resolve_without_cast(shell);
|
|
|
|
if (inner_value->is_command() || inner_value->is_list())
|
|
return inner_value;
|
|
|
|
auto values = inner_value->resolve_as_list(shell);
|
|
NonnullRefPtrVector<Value> cast_values;
|
|
for (auto& value : values)
|
|
cast_values.append(create<StringValue>(value));
|
|
|
|
return create<ListValue>(cast_values);
|
|
}
|
|
|
|
void CastToList::for_each_entry(RefPtr<Shell> shell, Function<IterationDecision(NonnullRefPtr<Value>)> callback)
|
|
{
|
|
if (m_inner)
|
|
m_inner->for_each_entry(shell, move(callback));
|
|
}
|
|
|
|
void CastToList::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
if (m_inner)
|
|
m_inner->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult CastToList::hit_test_position(size_t offset) const
|
|
{
|
|
if (!m_inner)
|
|
return {};
|
|
|
|
return m_inner->hit_test_position(offset);
|
|
}
|
|
|
|
RefPtr<Node> CastToList::leftmost_trivial_literal() const
|
|
{
|
|
return m_inner->leftmost_trivial_literal();
|
|
}
|
|
|
|
CastToList::CastToList(Position position, RefPtr<Node> inner)
|
|
: Node(move(position))
|
|
, m_inner(move(inner))
|
|
{
|
|
if (m_inner && m_inner->is_syntax_error())
|
|
set_is_syntax_error(m_inner->syntax_error_node());
|
|
}
|
|
|
|
CastToList::~CastToList()
|
|
{
|
|
}
|
|
|
|
void CloseFdRedirection::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(String::formatted("{} -> Close", m_fd), level);
|
|
}
|
|
|
|
RefPtr<Value> CloseFdRedirection::run(RefPtr<Shell>)
|
|
{
|
|
Command command;
|
|
command.position = position();
|
|
command.redirections.append(adopt_ref(*new CloseRedirection(m_fd)));
|
|
return create<CommandValue>(move(command));
|
|
}
|
|
|
|
void CloseFdRedirection::highlight_in_editor(Line::Editor& editor, Shell&, HighlightMetadata)
|
|
{
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset - 1 }, { Line::Style::Foreground(0x87, 0x9b, 0xcd) }); // 25% Darkened Periwinkle
|
|
editor.stylize({ m_position.end_offset - 1, m_position.end_offset }, { Line::Style::Foreground(0xff, 0x7e, 0x00) }); // Amber
|
|
}
|
|
|
|
CloseFdRedirection::CloseFdRedirection(Position position, int fd)
|
|
: Node(move(position))
|
|
, m_fd(fd)
|
|
{
|
|
}
|
|
|
|
CloseFdRedirection::~CloseFdRedirection()
|
|
{
|
|
}
|
|
|
|
void CommandLiteral::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented("(Generated command literal)", level + 1);
|
|
}
|
|
|
|
RefPtr<Value> CommandLiteral::run(RefPtr<Shell>)
|
|
{
|
|
return create<CommandValue>(m_command);
|
|
}
|
|
|
|
CommandLiteral::CommandLiteral(Position position, Command command)
|
|
: Node(move(position))
|
|
, m_command(move(command))
|
|
{
|
|
}
|
|
|
|
CommandLiteral::~CommandLiteral()
|
|
{
|
|
}
|
|
|
|
void Comment::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(m_text, level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Comment::run(RefPtr<Shell>)
|
|
{
|
|
return create<ListValue>({});
|
|
}
|
|
|
|
void Comment::highlight_in_editor(Line::Editor& editor, Shell&, HighlightMetadata)
|
|
{
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(150, 150, 150) }); // Light gray
|
|
}
|
|
|
|
Comment::Comment(Position position, String text)
|
|
: Node(move(position))
|
|
, m_text(move(text))
|
|
{
|
|
}
|
|
|
|
Comment::~Comment()
|
|
{
|
|
}
|
|
|
|
void ContinuationControl::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(m_kind == Continue ? "(Continue)" : "(Break)", level + 1);
|
|
}
|
|
|
|
RefPtr<Value> ContinuationControl::run(RefPtr<Shell> shell)
|
|
{
|
|
if (m_kind == Break)
|
|
shell->raise_error(Shell::ShellError::InternalControlFlowBreak, {}, position());
|
|
else if (m_kind == Continue)
|
|
shell->raise_error(Shell::ShellError::InternalControlFlowContinue, {}, position());
|
|
else
|
|
VERIFY_NOT_REACHED();
|
|
return create<ListValue>({});
|
|
}
|
|
|
|
void ContinuationControl::highlight_in_editor(Line::Editor& editor, Shell&, HighlightMetadata)
|
|
{
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
}
|
|
|
|
void DoubleQuotedString::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_inner->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> DoubleQuotedString::run(RefPtr<Shell> shell)
|
|
{
|
|
StringBuilder builder;
|
|
auto values = m_inner->run(shell)->resolve_as_list(shell);
|
|
|
|
builder.join("", values);
|
|
|
|
return create<StringValue>(builder.to_string());
|
|
}
|
|
|
|
void DoubleQuotedString::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
Line::Style style { Line::Style::Foreground(Line::Style::XtermColor::Yellow) };
|
|
if (metadata.is_first_in_list)
|
|
style.unify_with({ Line::Style::Bold });
|
|
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, style);
|
|
metadata.is_first_in_list = false;
|
|
m_inner->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult DoubleQuotedString::hit_test_position(size_t offset) const
|
|
{
|
|
return m_inner->hit_test_position(offset);
|
|
}
|
|
|
|
DoubleQuotedString::DoubleQuotedString(Position position, RefPtr<Node> inner)
|
|
: Node(move(position))
|
|
, m_inner(move(inner))
|
|
{
|
|
if (m_inner->is_syntax_error())
|
|
set_is_syntax_error(m_inner->syntax_error_node());
|
|
}
|
|
|
|
DoubleQuotedString::~DoubleQuotedString()
|
|
{
|
|
}
|
|
|
|
void DynamicEvaluate::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_inner->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> DynamicEvaluate::run(RefPtr<Shell> shell)
|
|
{
|
|
auto result = m_inner->run(shell)->resolve_without_cast(shell);
|
|
// Dynamic Evaluation behaves differently between strings and lists.
|
|
// Strings are treated as variables, and Lists are treated as commands.
|
|
if (result->is_string()) {
|
|
auto name_part = result->resolve_as_list(shell);
|
|
VERIFY(name_part.size() == 1);
|
|
return create<SimpleVariableValue>(name_part[0]);
|
|
}
|
|
|
|
// If it's anything else, we're just gonna cast it to a list.
|
|
auto list = result->resolve_as_list(shell);
|
|
return create<CommandValue>(move(list), position());
|
|
}
|
|
|
|
void DynamicEvaluate::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
m_inner->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult DynamicEvaluate::hit_test_position(size_t offset) const
|
|
{
|
|
return m_inner->hit_test_position(offset);
|
|
}
|
|
|
|
DynamicEvaluate::DynamicEvaluate(Position position, NonnullRefPtr<Node> inner)
|
|
: Node(move(position))
|
|
, m_inner(move(inner))
|
|
{
|
|
if (m_inner->is_syntax_error())
|
|
set_is_syntax_error(m_inner->syntax_error_node());
|
|
}
|
|
|
|
DynamicEvaluate::~DynamicEvaluate()
|
|
{
|
|
}
|
|
|
|
void Fd2FdRedirection::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(String::formatted("{} -> {}", m_old_fd, m_new_fd), level);
|
|
}
|
|
|
|
RefPtr<Value> Fd2FdRedirection::run(RefPtr<Shell>)
|
|
{
|
|
Command command;
|
|
command.position = position();
|
|
command.redirections.append(FdRedirection::create(m_new_fd, m_old_fd, Rewiring::Close::None));
|
|
return create<CommandValue>(move(command));
|
|
}
|
|
|
|
void Fd2FdRedirection::highlight_in_editor(Line::Editor& editor, Shell&, HighlightMetadata)
|
|
{
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(0x87, 0x9b, 0xcd) }); // 25% Darkened Periwinkle
|
|
}
|
|
|
|
Fd2FdRedirection::Fd2FdRedirection(Position position, int src, int dst)
|
|
: Node(move(position))
|
|
, m_old_fd(src)
|
|
, m_new_fd(dst)
|
|
{
|
|
}
|
|
|
|
Fd2FdRedirection::~Fd2FdRedirection()
|
|
{
|
|
}
|
|
|
|
void FunctionDeclaration::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(String::formatted("(name: {})\n", m_name.name), level + 1);
|
|
print_indented("(argument names)", level + 1);
|
|
for (auto& arg : m_arguments)
|
|
print_indented(String::formatted("(name: {})\n", arg.name), level + 2);
|
|
|
|
print_indented("(body)", level + 1);
|
|
if (m_block)
|
|
m_block->dump(level + 2);
|
|
else
|
|
print_indented("(null)", level + 2);
|
|
}
|
|
|
|
RefPtr<Value> FunctionDeclaration::run(RefPtr<Shell> shell)
|
|
{
|
|
Vector<String> args;
|
|
for (auto& arg : m_arguments)
|
|
args.append(arg.name);
|
|
|
|
shell->define_function(m_name.name, move(args), m_block);
|
|
|
|
return create<ListValue>({});
|
|
}
|
|
|
|
void FunctionDeclaration::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
editor.stylize({ m_name.position.start_offset, m_name.position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Blue) });
|
|
|
|
for (auto& arg : m_arguments)
|
|
editor.stylize({ arg.position.start_offset, arg.position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Blue), Line::Style::Italic });
|
|
|
|
metadata.is_first_in_list = true;
|
|
if (m_block)
|
|
m_block->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult FunctionDeclaration::hit_test_position(size_t offset) const
|
|
{
|
|
if (!m_block)
|
|
return {};
|
|
|
|
auto result = m_block->hit_test_position(offset);
|
|
if (result.matching_node && result.matching_node->is_simple_variable())
|
|
result.closest_node_with_semantic_meaning = this;
|
|
return result;
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> FunctionDeclaration::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
|
|
{
|
|
auto matching_node = hit_test_result.matching_node;
|
|
if (!matching_node)
|
|
return {};
|
|
|
|
if (!matching_node->is_simple_variable())
|
|
return matching_node->complete_for_editor(shell, offset, hit_test_result);
|
|
|
|
auto corrected_offset = offset - matching_node->position().start_offset - 1; // Skip the first '$'
|
|
auto* node = static_cast<SimpleVariable*>(matching_node.ptr());
|
|
|
|
auto name = node->name().substring_view(0, corrected_offset);
|
|
|
|
Vector<Line::CompletionSuggestion> results;
|
|
for (auto& arg : m_arguments) {
|
|
if (arg.name.starts_with(name))
|
|
results.append(arg.name);
|
|
}
|
|
|
|
results.append(matching_node->complete_for_editor(shell, offset, hit_test_result));
|
|
|
|
return results;
|
|
}
|
|
|
|
FunctionDeclaration::FunctionDeclaration(Position position, NameWithPosition name, Vector<NameWithPosition> arguments, RefPtr<AST::Node> body)
|
|
: Node(move(position))
|
|
, m_name(move(name))
|
|
, m_arguments(arguments)
|
|
, m_block(move(body))
|
|
{
|
|
if (m_block && m_block->is_syntax_error())
|
|
set_is_syntax_error(m_block->syntax_error_node());
|
|
}
|
|
|
|
FunctionDeclaration::~FunctionDeclaration()
|
|
{
|
|
}
|
|
|
|
void ForLoop::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
if (m_variable.has_value())
|
|
print_indented(String::formatted("iterating with {} in", m_variable->name), level + 1);
|
|
if (m_index_variable.has_value())
|
|
print_indented(String::formatted("with index name {} in", m_index_variable->name), level + 1);
|
|
if (m_iterated_expression)
|
|
m_iterated_expression->dump(level + 2);
|
|
else
|
|
print_indented("(ever)", level + 2);
|
|
print_indented("Running", level + 1);
|
|
if (m_block)
|
|
m_block->dump(level + 2);
|
|
else
|
|
print_indented("(null)", level + 2);
|
|
}
|
|
|
|
RefPtr<Value> ForLoop::run(RefPtr<Shell> shell)
|
|
{
|
|
if (!m_block)
|
|
return create<ListValue>({});
|
|
|
|
size_t consecutive_interruptions = 0;
|
|
auto run = [&](auto& block_value) {
|
|
if (shell->has_error(Shell::ShellError::InternalControlFlowBreak)) {
|
|
shell->take_error();
|
|
return IterationDecision::Break;
|
|
}
|
|
|
|
if (shell->has_error(Shell::ShellError::InternalControlFlowContinue)) {
|
|
shell->take_error();
|
|
return IterationDecision::Continue;
|
|
}
|
|
|
|
if (!shell->has_error(Shell::ShellError::None))
|
|
return IterationDecision::Break;
|
|
|
|
if (block_value->is_job()) {
|
|
auto job = static_cast<JobValue*>(block_value.ptr())->job();
|
|
if (!job || job->is_running_in_background())
|
|
return IterationDecision::Continue;
|
|
shell->block_on_job(job);
|
|
|
|
if (job->signaled()) {
|
|
if (job->termination_signal() == SIGINT)
|
|
++consecutive_interruptions;
|
|
else
|
|
return IterationDecision::Break;
|
|
} else {
|
|
consecutive_interruptions = 0;
|
|
}
|
|
}
|
|
return IterationDecision::Continue;
|
|
};
|
|
|
|
if (m_iterated_expression) {
|
|
auto variable_name = m_variable.has_value() ? m_variable->name : "it";
|
|
Optional<StringView> index_name = m_index_variable.has_value() ? Optional<StringView>(m_index_variable->name) : Optional<StringView>();
|
|
size_t i = 0;
|
|
m_iterated_expression->for_each_entry(shell, [&](auto value) {
|
|
if (consecutive_interruptions == 2)
|
|
return IterationDecision::Break;
|
|
|
|
RefPtr<Value> block_value;
|
|
|
|
{
|
|
auto frame = shell->push_frame(String::formatted("for ({})", this));
|
|
shell->set_local_variable(variable_name, value, true);
|
|
|
|
if (index_name.has_value())
|
|
shell->set_local_variable(index_name.value(), create<AST::StringValue>(String::number(i)), true);
|
|
|
|
++i;
|
|
|
|
block_value = m_block->run(shell);
|
|
}
|
|
|
|
return run(block_value);
|
|
});
|
|
} else {
|
|
for (;;) {
|
|
if (consecutive_interruptions == 2)
|
|
break;
|
|
|
|
RefPtr<Value> block_value = m_block->run(shell);
|
|
if (run(block_value) == IterationDecision::Break)
|
|
break;
|
|
}
|
|
}
|
|
|
|
return create<ListValue>({});
|
|
}
|
|
|
|
void ForLoop::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
auto is_loop = m_iterated_expression.is_null();
|
|
editor.stylize({ m_position.start_offset, m_position.start_offset + (is_loop ? 4 : 3) }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
if (!is_loop) {
|
|
if (m_in_kw_position.has_value())
|
|
editor.stylize({ m_in_kw_position.value().start_offset, m_in_kw_position.value().end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
|
|
if (m_index_kw_position.has_value())
|
|
editor.stylize({ m_index_kw_position.value().start_offset, m_index_kw_position.value().end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
|
|
metadata.is_first_in_list = false;
|
|
m_iterated_expression->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
if (m_index_variable.has_value())
|
|
editor.stylize({ m_index_variable->position.start_offset, m_index_variable->position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Blue), Line::Style::Italic });
|
|
|
|
if (m_variable.has_value())
|
|
editor.stylize({ m_variable->position.start_offset, m_variable->position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Blue), Line::Style::Italic });
|
|
|
|
metadata.is_first_in_list = true;
|
|
if (m_block)
|
|
m_block->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult ForLoop::hit_test_position(size_t offset) const
|
|
{
|
|
if (m_iterated_expression) {
|
|
if (auto result = m_iterated_expression->hit_test_position(offset); result.matching_node)
|
|
return result;
|
|
}
|
|
|
|
if (!m_block)
|
|
return {};
|
|
|
|
return m_block->hit_test_position(offset);
|
|
}
|
|
|
|
ForLoop::ForLoop(Position position, Optional<NameWithPosition> variable, Optional<NameWithPosition> index_variable, RefPtr<AST::Node> iterated_expr, RefPtr<AST::Node> block, Optional<Position> in_kw_position, Optional<Position> index_kw_position)
|
|
: Node(move(position))
|
|
, m_variable(move(variable))
|
|
, m_index_variable(move(index_variable))
|
|
, m_iterated_expression(move(iterated_expr))
|
|
, m_block(move(block))
|
|
, m_in_kw_position(move(in_kw_position))
|
|
, m_index_kw_position(move(index_kw_position))
|
|
{
|
|
if (m_iterated_expression && m_iterated_expression->is_syntax_error())
|
|
set_is_syntax_error(m_iterated_expression->syntax_error_node());
|
|
else if (m_block && m_block->is_syntax_error())
|
|
set_is_syntax_error(m_block->syntax_error_node());
|
|
}
|
|
|
|
ForLoop::~ForLoop()
|
|
{
|
|
}
|
|
|
|
void Glob::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(m_text, level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Glob::run(RefPtr<Shell>)
|
|
{
|
|
return create<GlobValue>(m_text, position());
|
|
}
|
|
|
|
void Glob::highlight_in_editor(Line::Editor& editor, Shell&, HighlightMetadata metadata)
|
|
{
|
|
Line::Style style { Line::Style::Foreground(Line::Style::XtermColor::Cyan) };
|
|
if (metadata.is_first_in_list)
|
|
style.unify_with({ Line::Style::Bold });
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, move(style));
|
|
}
|
|
|
|
Glob::Glob(Position position, String text)
|
|
: Node(move(position))
|
|
, m_text(move(text))
|
|
{
|
|
}
|
|
|
|
Glob::~Glob()
|
|
{
|
|
}
|
|
|
|
void Heredoc::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented("(End Key)", level + 1);
|
|
print_indented(m_end, level + 2);
|
|
print_indented("(Allows Interpolation)", level + 1);
|
|
print_indented(String::formatted("{}", m_allows_interpolation), level + 2);
|
|
print_indented("(Contents)", level + 1);
|
|
if (m_contents)
|
|
m_contents->dump(level + 2);
|
|
else
|
|
print_indented("(null)", level + 2);
|
|
}
|
|
|
|
RefPtr<Value> Heredoc::run(RefPtr<Shell> shell)
|
|
{
|
|
if (!m_deindent)
|
|
return m_contents->run(shell);
|
|
|
|
// To deindent, first split to lines...
|
|
auto value = m_contents->run(shell);
|
|
if (!value)
|
|
return value;
|
|
auto list = value->resolve_as_list(shell);
|
|
// The list better have one entry, otherwise we've put the wrong kind of node inside this heredoc
|
|
VERIFY(list.size() == 1);
|
|
auto lines = list.first().split_view('\n');
|
|
|
|
// Now just trim each line and put them back in a string
|
|
StringBuilder builder { list.first().length() };
|
|
for (auto& line : lines) {
|
|
builder.append(line.trim_whitespace(TrimMode::Left));
|
|
builder.append('\n');
|
|
}
|
|
|
|
return create<StringValue>(builder.to_string());
|
|
}
|
|
|
|
void Heredoc::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
Line::Style content_style { Line::Style::Foreground(Line::Style::XtermColor::Yellow) };
|
|
if (metadata.is_first_in_list)
|
|
content_style.unify_with({ Line::Style::Bold });
|
|
|
|
if (!m_contents)
|
|
content_style.unify_with({ Line::Style::Foreground(Line::Style::XtermColor::Red) }, true);
|
|
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, content_style);
|
|
if (m_contents)
|
|
m_contents->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Heredoc::hit_test_position(size_t offset) const
|
|
{
|
|
if (!m_contents)
|
|
return {};
|
|
|
|
return m_contents->hit_test_position(offset);
|
|
}
|
|
|
|
Heredoc::Heredoc(Position position, String end, bool allow_interpolation, bool deindent)
|
|
: Node(move(position))
|
|
, m_end(move(end))
|
|
, m_allows_interpolation(allow_interpolation)
|
|
, m_deindent(deindent)
|
|
{
|
|
}
|
|
|
|
Heredoc::~Heredoc()
|
|
{
|
|
}
|
|
|
|
void HistoryEvent::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented("Event Selector", level + 1);
|
|
switch (m_selector.event.kind) {
|
|
case HistorySelector::EventKind::IndexFromStart:
|
|
print_indented("IndexFromStart", level + 2);
|
|
break;
|
|
case HistorySelector::EventKind::IndexFromEnd:
|
|
print_indented("IndexFromEnd", level + 2);
|
|
break;
|
|
case HistorySelector::EventKind::ContainingStringLookup:
|
|
print_indented("ContainingStringLookup", level + 2);
|
|
break;
|
|
case HistorySelector::EventKind::StartingStringLookup:
|
|
print_indented("StartingStringLookup", level + 2);
|
|
break;
|
|
}
|
|
print_indented(String::formatted("{}({})", m_selector.event.index, m_selector.event.text), level + 3);
|
|
|
|
print_indented("Word Selector", level + 1);
|
|
auto print_word_selector = [&](const HistorySelector::WordSelector& selector) {
|
|
switch (selector.kind) {
|
|
case HistorySelector::WordSelectorKind::Index:
|
|
print_indented(String::formatted("Index {}", selector.selector), level + 3);
|
|
break;
|
|
case HistorySelector::WordSelectorKind::Last:
|
|
print_indented(String::formatted("Last"), level + 3);
|
|
break;
|
|
}
|
|
};
|
|
|
|
if (m_selector.word_selector_range.end.has_value()) {
|
|
print_indented("Range Start", level + 2);
|
|
print_word_selector(m_selector.word_selector_range.start);
|
|
print_indented("Range End", level + 2);
|
|
print_word_selector(m_selector.word_selector_range.end.value());
|
|
} else {
|
|
print_indented("Direct Address", level + 2);
|
|
print_word_selector(m_selector.word_selector_range.start);
|
|
}
|
|
}
|
|
|
|
RefPtr<Value> HistoryEvent::run(RefPtr<Shell> shell)
|
|
{
|
|
if (!shell)
|
|
return create<AST::ListValue>({});
|
|
|
|
auto editor = shell->editor();
|
|
if (!editor) {
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "No history available!", position());
|
|
return create<AST::ListValue>({});
|
|
}
|
|
auto& history = editor->history();
|
|
|
|
// FIXME: Implement reverse iterators and find()?
|
|
auto find_reverse = [](auto it_start, auto it_end, auto finder) {
|
|
auto it = it_end;
|
|
while (it != it_start) {
|
|
--it;
|
|
if (finder(*it))
|
|
return it;
|
|
}
|
|
return it_end;
|
|
};
|
|
// First, resolve the event itself.
|
|
String resolved_history;
|
|
switch (m_selector.event.kind) {
|
|
case HistorySelector::EventKind::IndexFromStart:
|
|
if (m_selector.event.index >= history.size()) {
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "History event index out of bounds", m_selector.event.text_position);
|
|
return create<AST::ListValue>({});
|
|
}
|
|
resolved_history = history[m_selector.event.index].entry;
|
|
break;
|
|
case HistorySelector::EventKind::IndexFromEnd:
|
|
if (m_selector.event.index >= history.size()) {
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "History event index out of bounds", m_selector.event.text_position);
|
|
return create<AST::ListValue>({});
|
|
}
|
|
resolved_history = history[history.size() - m_selector.event.index - 1].entry;
|
|
break;
|
|
case HistorySelector::EventKind::ContainingStringLookup: {
|
|
auto it = find_reverse(history.begin(), history.end(), [&](auto& entry) { return entry.entry.contains(m_selector.event.text); });
|
|
if (it.is_end()) {
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "History event did not match any entry", m_selector.event.text_position);
|
|
return create<AST::ListValue>({});
|
|
}
|
|
resolved_history = it->entry;
|
|
break;
|
|
}
|
|
case HistorySelector::EventKind::StartingStringLookup: {
|
|
auto it = find_reverse(history.begin(), history.end(), [&](auto& entry) { return entry.entry.starts_with(m_selector.event.text); });
|
|
if (it.is_end()) {
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "History event did not match any entry", m_selector.event.text_position);
|
|
return create<AST::ListValue>({});
|
|
}
|
|
resolved_history = it->entry;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Then, split it up to "words".
|
|
auto nodes = Parser { resolved_history }.parse_as_multiple_expressions();
|
|
|
|
// Now take the "words" as described by the word selectors.
|
|
bool is_range = m_selector.word_selector_range.end.has_value();
|
|
if (is_range) {
|
|
auto start_index = m_selector.word_selector_range.start.resolve(nodes.size());
|
|
auto end_index = m_selector.word_selector_range.end->resolve(nodes.size());
|
|
if (start_index >= nodes.size()) {
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "History word index out of bounds", m_selector.word_selector_range.start.position);
|
|
return create<AST::ListValue>({});
|
|
}
|
|
if (end_index >= nodes.size()) {
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "History word index out of bounds", m_selector.word_selector_range.end->position);
|
|
return create<AST::ListValue>({});
|
|
}
|
|
|
|
decltype(nodes) resolved_nodes;
|
|
resolved_nodes.append(nodes.data() + start_index, end_index - start_index + 1);
|
|
NonnullRefPtr<AST::Node> list = create<AST::ListConcatenate>(position(), move(resolved_nodes));
|
|
return list->run(shell);
|
|
}
|
|
|
|
auto index = m_selector.word_selector_range.start.resolve(nodes.size());
|
|
if (index >= nodes.size()) {
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "History word index out of bounds", m_selector.word_selector_range.start.position);
|
|
return create<AST::ListValue>({});
|
|
}
|
|
return nodes[index].run(shell);
|
|
}
|
|
|
|
void HistoryEvent::highlight_in_editor(Line::Editor& editor, Shell&, HighlightMetadata metadata)
|
|
{
|
|
Line::Style style { Line::Style::Foreground(Line::Style::XtermColor::Green) };
|
|
if (metadata.is_first_in_list)
|
|
style.unify_with({ Line::Style::Bold });
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, move(style));
|
|
}
|
|
|
|
HistoryEvent::HistoryEvent(Position position, HistorySelector selector)
|
|
: Node(move(position))
|
|
, m_selector(move(selector))
|
|
{
|
|
if (m_selector.word_selector_range.start.syntax_error_node)
|
|
set_is_syntax_error(*m_selector.word_selector_range.start.syntax_error_node);
|
|
else if (m_selector.word_selector_range.end.has_value() && m_selector.word_selector_range.end->syntax_error_node)
|
|
set_is_syntax_error(*m_selector.word_selector_range.end->syntax_error_node);
|
|
}
|
|
|
|
HistoryEvent::~HistoryEvent()
|
|
{
|
|
}
|
|
|
|
void Execute::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
if (m_capture_stdout)
|
|
print_indented("(Capturing stdout)", level + 1);
|
|
m_command->dump(level + 1);
|
|
}
|
|
|
|
void Execute::for_each_entry(RefPtr<Shell> shell, Function<IterationDecision(NonnullRefPtr<Value>)> callback)
|
|
{
|
|
if (m_command->would_execute())
|
|
return m_command->for_each_entry(shell, move(callback));
|
|
|
|
auto commands = shell->expand_aliases(m_command->run(shell)->resolve_as_commands(shell));
|
|
|
|
if (m_capture_stdout) {
|
|
int pipefd[2];
|
|
int rc = pipe(pipefd);
|
|
if (rc < 0) {
|
|
dbgln("Error: cannot pipe(): {}", strerror(errno));
|
|
return;
|
|
}
|
|
auto& last_in_commands = commands.last();
|
|
|
|
last_in_commands.redirections.prepend(FdRedirection::create(pipefd[1], STDOUT_FILENO, Rewiring::Close::Old));
|
|
last_in_commands.should_wait = false;
|
|
last_in_commands.should_notify_if_in_background = false;
|
|
last_in_commands.is_pipe_source = false;
|
|
|
|
Core::EventLoop loop;
|
|
|
|
auto notifier = Core::Notifier::construct(pipefd[0], Core::Notifier::Read);
|
|
DuplexMemoryStream stream;
|
|
|
|
enum {
|
|
Continue,
|
|
Break,
|
|
NothingLeft,
|
|
};
|
|
auto check_and_call = [&] {
|
|
auto ifs = shell->local_variable_or("IFS", "\n");
|
|
|
|
if (auto offset = stream.offset_of(ifs.bytes()); offset.has_value()) {
|
|
auto line_end = offset.value();
|
|
if (line_end == 0) {
|
|
auto rc = stream.discard_or_error(ifs.length());
|
|
VERIFY(rc);
|
|
|
|
if (shell->options.inline_exec_keep_empty_segments)
|
|
if (callback(create<StringValue>("")) == IterationDecision::Break) {
|
|
loop.quit(Break);
|
|
notifier->set_enabled(false);
|
|
return Break;
|
|
}
|
|
} else {
|
|
auto entry = ByteBuffer::create_uninitialized(line_end + ifs.length());
|
|
auto rc = stream.read_or_error(entry);
|
|
VERIFY(rc);
|
|
|
|
auto str = StringView(entry.data(), entry.size() - ifs.length());
|
|
if (callback(create<StringValue>(str)) == IterationDecision::Break) {
|
|
loop.quit(Break);
|
|
notifier->set_enabled(false);
|
|
return Break;
|
|
}
|
|
}
|
|
|
|
return Continue;
|
|
}
|
|
|
|
return NothingLeft;
|
|
};
|
|
|
|
notifier->on_ready_to_read = [&] {
|
|
constexpr static auto buffer_size = 16;
|
|
u8 buffer[buffer_size];
|
|
size_t remaining_size = buffer_size;
|
|
|
|
for (;;) {
|
|
notifier->set_event_mask(Core::Notifier::None);
|
|
bool should_enable_notifier = false;
|
|
|
|
ScopeGuard notifier_enabler { [&] {
|
|
if (should_enable_notifier)
|
|
notifier->set_event_mask(Core::Notifier::Read);
|
|
} };
|
|
|
|
if (check_and_call() == Break) {
|
|
loop.quit(Break);
|
|
return;
|
|
}
|
|
|
|
auto read_size = read(pipefd[0], buffer, remaining_size);
|
|
if (read_size < 0) {
|
|
int saved_errno = errno;
|
|
if (saved_errno == EINTR) {
|
|
should_enable_notifier = true;
|
|
continue;
|
|
}
|
|
if (saved_errno == 0)
|
|
continue;
|
|
dbgln("read() failed: {}", strerror(saved_errno));
|
|
break;
|
|
}
|
|
if (read_size == 0)
|
|
break;
|
|
|
|
should_enable_notifier = true;
|
|
stream.write({ buffer, (size_t)read_size });
|
|
}
|
|
|
|
loop.quit(NothingLeft);
|
|
};
|
|
|
|
auto jobs = shell->run_commands(commands);
|
|
ScopeGuard kill_jobs_if_around { [&] {
|
|
for (auto& job : jobs) {
|
|
if (job.is_running_in_background() && !job.exited() && !job.signaled()) {
|
|
job.set_should_announce_signal(false); // We're explicitly killing it here.
|
|
shell->kill_job(&job, SIGTERM);
|
|
}
|
|
}
|
|
} };
|
|
|
|
auto exit_reason = loop.exec();
|
|
|
|
notifier->on_ready_to_read = nullptr;
|
|
|
|
if (close(pipefd[0]) < 0) {
|
|
dbgln("close() failed: {}", strerror(errno));
|
|
}
|
|
|
|
if (exit_reason != Break && !stream.eof()) {
|
|
auto action = Continue;
|
|
do {
|
|
action = check_and_call();
|
|
if (action == Break)
|
|
return;
|
|
} while (action == Continue);
|
|
|
|
if (!stream.eof()) {
|
|
auto entry = ByteBuffer::create_uninitialized(stream.size());
|
|
auto rc = stream.read_or_error(entry);
|
|
VERIFY(rc);
|
|
callback(create<StringValue>(String::copy(entry)));
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
auto jobs = shell->run_commands(commands);
|
|
|
|
if (!jobs.is_empty())
|
|
callback(create<JobValue>(&jobs.last()));
|
|
}
|
|
|
|
RefPtr<Value> Execute::run(RefPtr<Shell> shell)
|
|
{
|
|
if (m_command->would_execute())
|
|
return m_command->run(shell);
|
|
|
|
NonnullRefPtrVector<Value> values;
|
|
for_each_entry(shell, [&](auto value) {
|
|
values.append(*value);
|
|
return IterationDecision::Continue;
|
|
});
|
|
|
|
if (values.size() == 1 && values.first().is_job())
|
|
return values.first();
|
|
|
|
return create<ListValue>(move(values));
|
|
}
|
|
|
|
void Execute::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
if (m_capture_stdout)
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Green) });
|
|
metadata.is_first_in_list = true;
|
|
m_command->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Execute::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_command->hit_test_position(offset);
|
|
if (!result.closest_node_with_semantic_meaning)
|
|
result.closest_node_with_semantic_meaning = this;
|
|
if (!result.closest_command_node)
|
|
result.closest_command_node = m_command;
|
|
return result;
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> Execute::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
|
|
{
|
|
auto matching_node = hit_test_result.matching_node;
|
|
if (!matching_node || !matching_node->is_bareword())
|
|
return {};
|
|
|
|
auto corrected_offset = offset - matching_node->position().start_offset;
|
|
auto* node = static_cast<BarewordLiteral*>(matching_node.ptr());
|
|
|
|
if (corrected_offset > node->text().length())
|
|
return {};
|
|
|
|
return shell.complete_program_name(node->text(), corrected_offset);
|
|
}
|
|
|
|
Execute::Execute(Position position, NonnullRefPtr<Node> command, bool capture_stdout)
|
|
: Node(move(position))
|
|
, m_command(move(command))
|
|
, m_capture_stdout(capture_stdout)
|
|
{
|
|
if (m_command->is_syntax_error())
|
|
set_is_syntax_error(m_command->syntax_error_node());
|
|
}
|
|
|
|
Execute::~Execute()
|
|
{
|
|
}
|
|
|
|
void IfCond::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented("Condition", ++level);
|
|
m_condition->dump(level + 1);
|
|
print_indented("True Branch", level);
|
|
if (m_true_branch)
|
|
m_true_branch->dump(level + 1);
|
|
else
|
|
print_indented("(empty)", level + 1);
|
|
print_indented("False Branch", level);
|
|
if (m_false_branch)
|
|
m_false_branch->dump(level + 1);
|
|
else
|
|
print_indented("(empty)", level + 1);
|
|
}
|
|
|
|
RefPtr<Value> IfCond::run(RefPtr<Shell> shell)
|
|
{
|
|
auto cond = m_condition->run(shell)->resolve_without_cast(shell);
|
|
// The condition could be a builtin, in which case it has already run and exited.
|
|
if (cond && cond->is_job()) {
|
|
auto cond_job_value = static_cast<const JobValue*>(cond.ptr());
|
|
auto cond_job = cond_job_value->job();
|
|
|
|
shell->block_on_job(cond_job);
|
|
}
|
|
if (shell->last_return_code == 0) {
|
|
if (m_true_branch)
|
|
return m_true_branch->run(shell);
|
|
} else {
|
|
if (m_false_branch)
|
|
return m_false_branch->run(shell);
|
|
}
|
|
|
|
return create<ListValue>({});
|
|
}
|
|
|
|
void IfCond::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
metadata.is_first_in_list = true;
|
|
|
|
editor.stylize({ m_position.start_offset, m_position.start_offset + 2 }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
if (m_else_position.has_value())
|
|
editor.stylize({ m_else_position.value().start_offset, m_else_position.value().start_offset + 4 }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
|
|
m_condition->highlight_in_editor(editor, shell, metadata);
|
|
if (m_true_branch)
|
|
m_true_branch->highlight_in_editor(editor, shell, metadata);
|
|
if (m_false_branch)
|
|
m_false_branch->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult IfCond::hit_test_position(size_t offset) const
|
|
{
|
|
if (auto result = m_condition->hit_test_position(offset); result.matching_node)
|
|
return result;
|
|
|
|
if (m_true_branch) {
|
|
if (auto result = m_true_branch->hit_test_position(offset); result.matching_node)
|
|
return result;
|
|
}
|
|
|
|
if (m_false_branch) {
|
|
if (auto result = m_false_branch->hit_test_position(offset); result.matching_node)
|
|
return result;
|
|
}
|
|
|
|
return {};
|
|
}
|
|
|
|
IfCond::IfCond(Position position, Optional<Position> else_position, NonnullRefPtr<Node> condition, RefPtr<Node> true_branch, RefPtr<Node> false_branch)
|
|
: Node(move(position))
|
|
, m_condition(move(condition))
|
|
, m_true_branch(move(true_branch))
|
|
, m_false_branch(move(false_branch))
|
|
, m_else_position(move(else_position))
|
|
{
|
|
if (m_condition->is_syntax_error())
|
|
set_is_syntax_error(m_condition->syntax_error_node());
|
|
else if (m_true_branch && m_true_branch->is_syntax_error())
|
|
set_is_syntax_error(m_true_branch->syntax_error_node());
|
|
else if (m_false_branch && m_false_branch->is_syntax_error())
|
|
set_is_syntax_error(m_false_branch->syntax_error_node());
|
|
|
|
m_condition = create<AST::Execute>(m_condition->position(), m_condition);
|
|
|
|
if (m_true_branch) {
|
|
auto true_branch = m_true_branch.release_nonnull();
|
|
if (true_branch->is_execute())
|
|
m_true_branch = static_ptr_cast<AST::Execute>(true_branch)->command();
|
|
else
|
|
m_true_branch = move(true_branch);
|
|
}
|
|
|
|
if (m_false_branch) {
|
|
auto false_branch = m_false_branch.release_nonnull();
|
|
if (false_branch->is_execute())
|
|
m_false_branch = static_ptr_cast<AST::Execute>(false_branch)->command();
|
|
else
|
|
m_false_branch = move(false_branch);
|
|
}
|
|
}
|
|
|
|
IfCond::~IfCond()
|
|
{
|
|
}
|
|
|
|
void ImmediateExpression::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented("(function)", level + 1);
|
|
print_indented(m_function.name, level + 2);
|
|
print_indented("(arguments)", level + 1);
|
|
for (auto& argument : arguments())
|
|
argument.dump(level + 2);
|
|
}
|
|
|
|
RefPtr<Value> ImmediateExpression::run(RefPtr<Shell> shell)
|
|
{
|
|
auto node = shell->run_immediate_function(m_function.name, *this, arguments());
|
|
if (node)
|
|
return node->run(shell);
|
|
|
|
return create<ListValue>({});
|
|
}
|
|
|
|
void ImmediateExpression::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
// '${' - FIXME: This could also be '$\\\n{'
|
|
editor.stylize({ m_position.start_offset, m_position.start_offset + 2 }, { Line::Style::Foreground(Line::Style::XtermColor::Green) });
|
|
|
|
// Function name
|
|
Line::Style function_style { Line::Style::Foreground(Line::Style::XtermColor::Red) };
|
|
if (shell.has_immediate_function(function_name()))
|
|
function_style = { Line::Style::Foreground(Line::Style::XtermColor::Green) };
|
|
editor.stylize({ m_function.position.start_offset, m_function.position.end_offset }, move(function_style));
|
|
|
|
// Arguments
|
|
for (auto& argument : m_arguments) {
|
|
metadata.is_first_in_list = false;
|
|
argument.highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
// Closing brace
|
|
if (m_closing_brace_position.has_value())
|
|
editor.stylize({ m_closing_brace_position->start_offset, m_closing_brace_position->end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Green) });
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> ImmediateExpression::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
|
|
{
|
|
auto matching_node = hit_test_result.matching_node;
|
|
if (!matching_node || matching_node != this)
|
|
return {};
|
|
|
|
auto corrected_offset = offset - m_function.position.start_offset;
|
|
|
|
if (corrected_offset > m_function.name.length())
|
|
return {};
|
|
|
|
return shell.complete_immediate_function_name(m_function.name, corrected_offset);
|
|
}
|
|
|
|
HitTestResult ImmediateExpression::hit_test_position(size_t offset) const
|
|
{
|
|
if (m_function.position.contains(offset))
|
|
return { this, this, this };
|
|
|
|
for (auto& argument : m_arguments) {
|
|
if (auto result = argument.hit_test_position(offset); result.matching_node)
|
|
return result;
|
|
}
|
|
|
|
return {};
|
|
}
|
|
|
|
ImmediateExpression::ImmediateExpression(Position position, NameWithPosition function, NonnullRefPtrVector<AST::Node> arguments, Optional<Position> closing_brace_position)
|
|
: Node(move(position))
|
|
, m_arguments(move(arguments))
|
|
, m_function(move(function))
|
|
, m_closing_brace_position(move(closing_brace_position))
|
|
{
|
|
if (is_syntax_error())
|
|
return;
|
|
|
|
for (auto& argument : m_arguments) {
|
|
if (argument.is_syntax_error()) {
|
|
set_is_syntax_error(argument.syntax_error_node());
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
ImmediateExpression::~ImmediateExpression()
|
|
{
|
|
}
|
|
|
|
void Join::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_left->dump(level + 1);
|
|
m_right->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Join::run(RefPtr<Shell> shell)
|
|
{
|
|
auto left = m_left->to_lazy_evaluated_commands(shell);
|
|
auto right = m_right->to_lazy_evaluated_commands(shell);
|
|
|
|
return create<CommandSequenceValue>(join_commands(move(left), move(right)));
|
|
}
|
|
|
|
void Join::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
m_left->highlight_in_editor(editor, shell, metadata);
|
|
if (m_left->is_list() || m_left->is_command())
|
|
metadata.is_first_in_list = false;
|
|
m_right->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Join::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_left->hit_test_position(offset);
|
|
if (result.matching_node)
|
|
return result;
|
|
|
|
return m_right->hit_test_position(offset);
|
|
}
|
|
|
|
RefPtr<Node> Join::leftmost_trivial_literal() const
|
|
{
|
|
if (auto value = m_left->leftmost_trivial_literal())
|
|
return value;
|
|
return m_right->leftmost_trivial_literal();
|
|
}
|
|
|
|
Join::Join(Position position, NonnullRefPtr<Node> left, NonnullRefPtr<Node> right)
|
|
: Node(move(position))
|
|
, m_left(move(left))
|
|
, m_right(move(right))
|
|
{
|
|
if (m_left->is_syntax_error())
|
|
set_is_syntax_error(m_left->syntax_error_node());
|
|
else if (m_right->is_syntax_error())
|
|
set_is_syntax_error(m_right->syntax_error_node());
|
|
}
|
|
|
|
Join::~Join()
|
|
{
|
|
}
|
|
|
|
void MatchExpr::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(String::formatted("(expression: {})", m_expr_name.characters()), level + 1);
|
|
m_matched_expr->dump(level + 2);
|
|
print_indented(String::formatted("(named: {})", m_expr_name.characters()), level + 1);
|
|
print_indented("(entries)", level + 1);
|
|
for (auto& entry : m_entries) {
|
|
StringBuilder builder;
|
|
builder.append("(match");
|
|
if (entry.match_names.has_value()) {
|
|
builder.append(" to names (");
|
|
bool first = true;
|
|
for (auto& name : entry.match_names.value()) {
|
|
if (!first)
|
|
builder.append(' ');
|
|
first = false;
|
|
builder.append(name);
|
|
}
|
|
builder.append("))");
|
|
|
|
} else {
|
|
builder.append(')');
|
|
}
|
|
print_indented(builder.string_view(), level + 2);
|
|
for (auto& node : entry.options)
|
|
node.dump(level + 3);
|
|
print_indented("(execute)", level + 2);
|
|
if (entry.body)
|
|
entry.body->dump(level + 3);
|
|
else
|
|
print_indented("(nothing)", level + 3);
|
|
}
|
|
}
|
|
|
|
RefPtr<Value> MatchExpr::run(RefPtr<Shell> shell)
|
|
{
|
|
auto value = m_matched_expr->run(shell)->resolve_without_cast(shell);
|
|
auto list = value->resolve_as_list(shell);
|
|
|
|
auto list_matches = [&](auto&& pattern, auto& spans) {
|
|
if (pattern.size() != list.size())
|
|
return false;
|
|
|
|
for (size_t i = 0; i < pattern.size(); ++i) {
|
|
Vector<AK::MaskSpan> mask_spans;
|
|
if (!list[i].matches(pattern[i], mask_spans))
|
|
return false;
|
|
for (auto& span : mask_spans)
|
|
spans.append(list[i].substring(span.start, span.length));
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
auto resolve_pattern = [&](auto& option) {
|
|
Vector<String> pattern;
|
|
if (option.is_glob()) {
|
|
pattern.append(static_cast<const Glob*>(&option)->text());
|
|
} else if (option.is_bareword()) {
|
|
pattern.append(static_cast<const BarewordLiteral*>(&option)->text());
|
|
} else {
|
|
auto list = option.run(shell);
|
|
option.for_each_entry(shell, [&](auto&& value) {
|
|
pattern.append(value->resolve_as_list(nullptr)); // Note: 'nullptr' incurs special behaviour,
|
|
// asking the node for a 'raw' value.
|
|
return IterationDecision::Continue;
|
|
});
|
|
}
|
|
|
|
return pattern;
|
|
};
|
|
|
|
auto frame = shell->push_frame(String::formatted("match ({})", this));
|
|
if (!m_expr_name.is_empty())
|
|
shell->set_local_variable(m_expr_name, value, true);
|
|
|
|
for (auto& entry : m_entries) {
|
|
for (auto& option : entry.options) {
|
|
Vector<String> spans;
|
|
if (list_matches(resolve_pattern(option), spans)) {
|
|
if (entry.body) {
|
|
if (entry.match_names.has_value()) {
|
|
size_t i = 0;
|
|
for (auto& name : entry.match_names.value()) {
|
|
if (spans.size() > i)
|
|
shell->set_local_variable(name, create<AST::StringValue>(spans[i]), true);
|
|
++i;
|
|
}
|
|
}
|
|
return entry.body->run(shell);
|
|
} else {
|
|
return create<AST::ListValue>({});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "Non-exhaustive match rules!", position());
|
|
return create<AST::ListValue>({});
|
|
}
|
|
|
|
void MatchExpr::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
editor.stylize({ m_position.start_offset, m_position.start_offset + 5 }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
if (m_as_position.has_value())
|
|
editor.stylize({ m_as_position.value().start_offset, m_as_position.value().end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
|
|
metadata.is_first_in_list = false;
|
|
m_matched_expr->highlight_in_editor(editor, shell, metadata);
|
|
|
|
for (auto& entry : m_entries) {
|
|
metadata.is_first_in_list = false;
|
|
for (auto& option : entry.options)
|
|
option.highlight_in_editor(editor, shell, metadata);
|
|
|
|
metadata.is_first_in_list = true;
|
|
if (entry.body)
|
|
entry.body->highlight_in_editor(editor, shell, metadata);
|
|
|
|
for (auto& position : entry.pipe_positions)
|
|
editor.stylize({ position.start_offset, position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
|
|
if (entry.match_as_position.has_value())
|
|
editor.stylize({ entry.match_as_position.value().start_offset, entry.match_as_position.value().end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
}
|
|
}
|
|
|
|
HitTestResult MatchExpr::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_matched_expr->hit_test_position(offset);
|
|
if (result.matching_node)
|
|
return result;
|
|
|
|
for (auto& entry : m_entries) {
|
|
if (!entry.body)
|
|
continue;
|
|
auto result = entry.body->hit_test_position(offset);
|
|
if (result.matching_node)
|
|
return result;
|
|
}
|
|
|
|
return {};
|
|
}
|
|
|
|
MatchExpr::MatchExpr(Position position, NonnullRefPtr<Node> expr, String name, Optional<Position> as_position, Vector<MatchEntry> entries)
|
|
: Node(move(position))
|
|
, m_matched_expr(move(expr))
|
|
, m_expr_name(move(name))
|
|
, m_as_position(move(as_position))
|
|
, m_entries(move(entries))
|
|
{
|
|
if (m_matched_expr->is_syntax_error()) {
|
|
set_is_syntax_error(m_matched_expr->syntax_error_node());
|
|
} else {
|
|
for (auto& entry : m_entries) {
|
|
if (!entry.body)
|
|
continue;
|
|
if (entry.body->is_syntax_error()) {
|
|
set_is_syntax_error(entry.body->syntax_error_node());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
MatchExpr::~MatchExpr()
|
|
{
|
|
}
|
|
|
|
void Or::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_left->dump(level + 1);
|
|
m_right->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Or::run(RefPtr<Shell> shell)
|
|
{
|
|
auto commands = m_left->to_lazy_evaluated_commands(shell);
|
|
commands.last().next_chain.empend(*m_right, NodeWithAction::Or);
|
|
return create<CommandSequenceValue>(move(commands));
|
|
}
|
|
|
|
void Or::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
m_left->highlight_in_editor(editor, shell, metadata);
|
|
m_right->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Or::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_left->hit_test_position(offset);
|
|
if (result.matching_node) {
|
|
if (!result.closest_command_node)
|
|
result.closest_command_node = m_right;
|
|
return result;
|
|
}
|
|
|
|
result = m_right->hit_test_position(offset);
|
|
if (!result.closest_command_node)
|
|
result.closest_command_node = m_right;
|
|
return result;
|
|
}
|
|
|
|
Or::Or(Position position, NonnullRefPtr<Node> left, NonnullRefPtr<Node> right, Position or_position)
|
|
: Node(move(position))
|
|
, m_left(move(left))
|
|
, m_right(move(right))
|
|
, m_or_position(or_position)
|
|
{
|
|
if (m_left->is_syntax_error())
|
|
set_is_syntax_error(m_left->syntax_error_node());
|
|
else if (m_right->is_syntax_error())
|
|
set_is_syntax_error(m_right->syntax_error_node());
|
|
}
|
|
|
|
Or::~Or()
|
|
{
|
|
}
|
|
|
|
void Pipe::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_left->dump(level + 1);
|
|
m_right->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Pipe::run(RefPtr<Shell> shell)
|
|
{
|
|
auto left = m_left->to_lazy_evaluated_commands(shell);
|
|
auto right = m_right->to_lazy_evaluated_commands(shell);
|
|
|
|
auto last_in_left = left.take_last();
|
|
auto first_in_right = right.take_first();
|
|
|
|
auto pipe_read_end = FdRedirection::create(-1, STDIN_FILENO, Rewiring::Close::Old);
|
|
auto pipe_write_end = FdRedirection::create(-1, STDOUT_FILENO, pipe_read_end, Rewiring::Close::RefreshOld);
|
|
|
|
auto insert_at_start_or_after_last_pipe = [&](auto& pipe, auto& command) {
|
|
size_t insert_index = 0;
|
|
auto& redirections = command.redirections;
|
|
for (ssize_t i = redirections.size() - 1; i >= 0; --i) {
|
|
auto& redirection = redirections[i];
|
|
if (!redirection.is_fd_redirection())
|
|
continue;
|
|
auto& fd_redirection = static_cast<FdRedirection&>(redirection);
|
|
if (fd_redirection.old_fd == -1) {
|
|
insert_index = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
redirections.insert(insert_index, pipe);
|
|
};
|
|
|
|
insert_at_start_or_after_last_pipe(pipe_read_end, first_in_right);
|
|
insert_at_start_or_after_last_pipe(pipe_write_end, last_in_left);
|
|
|
|
last_in_left.should_wait = false;
|
|
last_in_left.is_pipe_source = true;
|
|
|
|
if (first_in_right.pipeline) {
|
|
last_in_left.pipeline = first_in_right.pipeline;
|
|
} else {
|
|
auto pipeline = create<Pipeline>();
|
|
last_in_left.pipeline = pipeline;
|
|
first_in_right.pipeline = pipeline;
|
|
}
|
|
|
|
Vector<Command> commands;
|
|
commands.append(left);
|
|
commands.append(last_in_left);
|
|
commands.append(first_in_right);
|
|
commands.append(right);
|
|
|
|
return create<CommandSequenceValue>(move(commands));
|
|
}
|
|
|
|
void Pipe::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
m_left->highlight_in_editor(editor, shell, metadata);
|
|
m_right->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Pipe::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_left->hit_test_position(offset);
|
|
if (result.matching_node) {
|
|
if (!result.closest_command_node)
|
|
result.closest_command_node = m_right;
|
|
return result;
|
|
}
|
|
|
|
result = m_right->hit_test_position(offset);
|
|
if (!result.closest_command_node)
|
|
result.closest_command_node = m_right;
|
|
return result;
|
|
}
|
|
|
|
Pipe::Pipe(Position position, NonnullRefPtr<Node> left, NonnullRefPtr<Node> right)
|
|
: Node(move(position))
|
|
, m_left(move(left))
|
|
, m_right(move(right))
|
|
{
|
|
if (m_left->is_syntax_error())
|
|
set_is_syntax_error(m_left->syntax_error_node());
|
|
else if (m_right->is_syntax_error())
|
|
set_is_syntax_error(m_right->syntax_error_node());
|
|
}
|
|
|
|
Pipe::~Pipe()
|
|
{
|
|
}
|
|
|
|
PathRedirectionNode::PathRedirectionNode(Position position, int fd, NonnullRefPtr<Node> path)
|
|
: Node(move(position))
|
|
, m_fd(fd)
|
|
, m_path(move(path))
|
|
{
|
|
}
|
|
|
|
void PathRedirectionNode::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(0x87, 0x9b, 0xcd) }); // 25% Darkened Periwinkle
|
|
metadata.is_first_in_list = false;
|
|
m_path->highlight_in_editor(editor, shell, metadata);
|
|
if (m_path->is_bareword()) {
|
|
auto path_text = m_path->run(nullptr)->resolve_as_list(nullptr);
|
|
VERIFY(path_text.size() == 1);
|
|
// Apply a URL to the path.
|
|
auto& position = m_path->position();
|
|
auto& path = path_text[0];
|
|
if (!path.starts_with('/'))
|
|
path = String::formatted("{}/{}", shell.cwd, path);
|
|
auto url = URL::create_with_file_protocol(path);
|
|
url.set_host(shell.hostname);
|
|
editor.stylize({ position.start_offset, position.end_offset }, { Line::Style::Hyperlink(url.to_string()) });
|
|
}
|
|
}
|
|
|
|
HitTestResult PathRedirectionNode::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_path->hit_test_position(offset);
|
|
if (!result.closest_node_with_semantic_meaning)
|
|
result.closest_node_with_semantic_meaning = this;
|
|
return result;
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> PathRedirectionNode::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
|
|
{
|
|
auto matching_node = hit_test_result.matching_node;
|
|
if (!matching_node || !matching_node->is_bareword())
|
|
return {};
|
|
|
|
auto corrected_offset = offset - matching_node->position().start_offset;
|
|
auto* node = static_cast<BarewordLiteral*>(matching_node.ptr());
|
|
|
|
if (corrected_offset > node->text().length())
|
|
return {};
|
|
|
|
return shell.complete_path("", node->text(), corrected_offset, Shell::ExecutableOnly::No);
|
|
}
|
|
|
|
PathRedirectionNode::~PathRedirectionNode()
|
|
{
|
|
}
|
|
|
|
void Range::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented("(From)", level + 1);
|
|
m_start->dump(level + 2);
|
|
print_indented("(To)", level + 1);
|
|
m_end->dump(level + 2);
|
|
}
|
|
|
|
RefPtr<Value> Range::run(RefPtr<Shell> shell)
|
|
{
|
|
auto interpolate = [position = position()](RefPtr<Value> start, RefPtr<Value> end, RefPtr<Shell> shell) -> NonnullRefPtrVector<Value> {
|
|
NonnullRefPtrVector<Value> values;
|
|
|
|
if (start->is_string() && end->is_string()) {
|
|
auto start_str = start->resolve_as_list(shell)[0];
|
|
auto end_str = end->resolve_as_list(shell)[0];
|
|
|
|
Utf8View start_view { start_str }, end_view { end_str };
|
|
if (start_view.validate() && end_view.validate()) {
|
|
if (start_view.length() == 1 && end_view.length() == 1) {
|
|
// Interpolate between two code points.
|
|
auto start_code_point = *start_view.begin();
|
|
auto end_code_point = *end_view.begin();
|
|
auto step = start_code_point > end_code_point ? -1 : 1;
|
|
StringBuilder builder;
|
|
for (u32 code_point = start_code_point; code_point != end_code_point; code_point += step) {
|
|
builder.clear();
|
|
builder.append_code_point(code_point);
|
|
values.append(create<StringValue>(builder.to_string()));
|
|
}
|
|
// Append the ending code point too, most shells treat this as inclusive.
|
|
builder.clear();
|
|
builder.append_code_point(end_code_point);
|
|
values.append(create<StringValue>(builder.to_string()));
|
|
} else {
|
|
// Could be two numbers?
|
|
auto start_int = start_str.to_int();
|
|
auto end_int = end_str.to_int();
|
|
if (start_int.has_value() && end_int.has_value()) {
|
|
auto start = start_int.value();
|
|
auto end = end_int.value();
|
|
auto step = start > end ? -1 : 1;
|
|
for (int value = start; value != end; value += step)
|
|
values.append(create<StringValue>(String::number(value)));
|
|
// Append the range end too, most shells treat this as inclusive.
|
|
values.append(create<StringValue>(String::number(end)));
|
|
} else {
|
|
goto yield_start_end;
|
|
}
|
|
}
|
|
} else {
|
|
yield_start_end:;
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, String::formatted("Cannot interpolate between '{}' and '{}'!", start_str, end_str), position);
|
|
// We can't really interpolate between the two, so just yield both.
|
|
values.append(create<StringValue>(move(start_str)));
|
|
values.append(create<StringValue>(move(end_str)));
|
|
}
|
|
|
|
return values;
|
|
}
|
|
|
|
warnln("Shell: Cannot apply the requested interpolation");
|
|
return values;
|
|
};
|
|
|
|
auto start_value = m_start->run(shell);
|
|
auto end_value = m_end->run(shell);
|
|
if (!start_value || !end_value)
|
|
return create<ListValue>({});
|
|
|
|
return create<ListValue>(interpolate(*start_value, *end_value, shell));
|
|
}
|
|
|
|
void Range::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
m_start->highlight_in_editor(editor, shell, metadata);
|
|
|
|
// Highlight the '..'
|
|
editor.stylize({ m_start->position().end_offset, m_end->position().start_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Yellow) });
|
|
|
|
metadata.is_first_in_list = false;
|
|
m_end->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Range::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_start->hit_test_position(offset);
|
|
if (result.matching_node) {
|
|
if (!result.closest_command_node)
|
|
result.closest_command_node = m_start;
|
|
return result;
|
|
}
|
|
|
|
result = m_end->hit_test_position(offset);
|
|
if (!result.closest_command_node)
|
|
result.closest_command_node = m_end;
|
|
return result;
|
|
}
|
|
|
|
Range::Range(Position position, NonnullRefPtr<Node> start, NonnullRefPtr<Node> end)
|
|
: Node(move(position))
|
|
, m_start(move(start))
|
|
, m_end(move(end))
|
|
{
|
|
if (m_start->is_syntax_error())
|
|
set_is_syntax_error(m_start->syntax_error_node());
|
|
else if (m_end->is_syntax_error())
|
|
set_is_syntax_error(m_end->syntax_error_node());
|
|
}
|
|
|
|
Range::~Range()
|
|
{
|
|
}
|
|
|
|
void ReadRedirection::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_path->dump(level + 1);
|
|
print_indented(String::formatted("To {}", m_fd), level + 1);
|
|
}
|
|
|
|
RefPtr<Value> ReadRedirection::run(RefPtr<Shell> shell)
|
|
{
|
|
Command command;
|
|
auto path_segments = m_path->run(shell)->resolve_as_list(shell);
|
|
StringBuilder builder;
|
|
builder.join(" ", path_segments);
|
|
|
|
command.redirections.append(PathRedirection::create(builder.to_string(), m_fd, PathRedirection::Read));
|
|
return create<CommandValue>(move(command));
|
|
}
|
|
|
|
ReadRedirection::ReadRedirection(Position position, int fd, NonnullRefPtr<Node> path)
|
|
: PathRedirectionNode(move(position), fd, move(path))
|
|
{
|
|
}
|
|
|
|
ReadRedirection::~ReadRedirection()
|
|
{
|
|
}
|
|
|
|
void ReadWriteRedirection::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_path->dump(level + 1);
|
|
print_indented(String::formatted("To/From {}", m_fd), level + 1);
|
|
}
|
|
|
|
RefPtr<Value> ReadWriteRedirection::run(RefPtr<Shell> shell)
|
|
{
|
|
Command command;
|
|
auto path_segments = m_path->run(shell)->resolve_as_list(shell);
|
|
StringBuilder builder;
|
|
builder.join(" ", path_segments);
|
|
|
|
command.redirections.append(PathRedirection::create(builder.to_string(), m_fd, PathRedirection::ReadWrite));
|
|
return create<CommandValue>(move(command));
|
|
}
|
|
|
|
ReadWriteRedirection::ReadWriteRedirection(Position position, int fd, NonnullRefPtr<Node> path)
|
|
: PathRedirectionNode(move(position), fd, move(path))
|
|
{
|
|
}
|
|
|
|
ReadWriteRedirection::~ReadWriteRedirection()
|
|
{
|
|
}
|
|
|
|
void Sequence::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
for (auto& entry : m_entries)
|
|
entry.dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Sequence::run(RefPtr<Shell> shell)
|
|
{
|
|
Vector<Command> all_commands;
|
|
Command* last_command_in_sequence = nullptr;
|
|
for (auto& entry : m_entries) {
|
|
if (!last_command_in_sequence) {
|
|
auto commands = entry.to_lazy_evaluated_commands(shell);
|
|
all_commands.append(move(commands));
|
|
last_command_in_sequence = &all_commands.last();
|
|
continue;
|
|
}
|
|
|
|
if (last_command_in_sequence->should_wait) {
|
|
last_command_in_sequence->next_chain.append(NodeWithAction { entry, NodeWithAction::Sequence });
|
|
} else {
|
|
all_commands.append(entry.to_lazy_evaluated_commands(shell));
|
|
last_command_in_sequence = &all_commands.last();
|
|
}
|
|
}
|
|
|
|
return create<CommandSequenceValue>(move(all_commands));
|
|
}
|
|
|
|
void Sequence::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
for (auto& entry : m_entries)
|
|
entry.highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Sequence::hit_test_position(size_t offset) const
|
|
{
|
|
for (auto& entry : m_entries) {
|
|
auto result = entry.hit_test_position(offset);
|
|
if (result.matching_node) {
|
|
if (!result.closest_command_node)
|
|
result.closest_command_node = entry;
|
|
return result;
|
|
}
|
|
}
|
|
|
|
return {};
|
|
}
|
|
|
|
Sequence::Sequence(Position position, NonnullRefPtrVector<Node> entries, Vector<Position> separator_positions)
|
|
: Node(move(position))
|
|
, m_entries(move(entries))
|
|
, m_separator_positions(separator_positions)
|
|
{
|
|
for (auto& entry : m_entries) {
|
|
if (entry.is_syntax_error()) {
|
|
set_is_syntax_error(entry.syntax_error_node());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
Sequence::~Sequence()
|
|
{
|
|
}
|
|
|
|
void Subshell::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
if (m_block)
|
|
m_block->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Subshell::run(RefPtr<Shell> shell)
|
|
{
|
|
if (!m_block)
|
|
return create<ListValue>({});
|
|
|
|
return create<AST::CommandSequenceValue>(m_block->to_lazy_evaluated_commands(shell));
|
|
}
|
|
|
|
void Subshell::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
metadata.is_first_in_list = true;
|
|
if (m_block)
|
|
m_block->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Subshell::hit_test_position(size_t offset) const
|
|
{
|
|
if (m_block)
|
|
return m_block->hit_test_position(offset);
|
|
|
|
return {};
|
|
}
|
|
|
|
Subshell::Subshell(Position position, RefPtr<Node> block)
|
|
: Node(move(position))
|
|
, m_block(block)
|
|
{
|
|
if (m_block && m_block->is_syntax_error())
|
|
set_is_syntax_error(m_block->syntax_error_node());
|
|
}
|
|
|
|
Subshell::~Subshell()
|
|
{
|
|
}
|
|
|
|
void Slice::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_selector->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Slice::run(RefPtr<Shell> shell)
|
|
{
|
|
return m_selector->run(shell);
|
|
}
|
|
|
|
void Slice::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
m_selector->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult Slice::hit_test_position(size_t offset) const
|
|
{
|
|
return m_selector->hit_test_position(offset);
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> Slice::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
|
|
{
|
|
// TODO: Maybe intercept this, and suggest values in range?
|
|
return m_selector->complete_for_editor(shell, offset, hit_test_result);
|
|
}
|
|
|
|
Slice::Slice(Position position, NonnullRefPtr<AST::Node> selector)
|
|
: Node(move(position))
|
|
, m_selector(move(selector))
|
|
{
|
|
if (m_selector->is_syntax_error())
|
|
set_is_syntax_error(m_selector->syntax_error_node());
|
|
}
|
|
|
|
Slice::~Slice()
|
|
{
|
|
}
|
|
|
|
void SimpleVariable::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented("(Name)", level + 1);
|
|
print_indented(m_name, level + 2);
|
|
print_indented("(Slice)", level + 1);
|
|
if (m_slice)
|
|
m_slice->dump(level + 2);
|
|
else
|
|
print_indented("(None)", level + 2);
|
|
}
|
|
|
|
RefPtr<Value> SimpleVariable::run(RefPtr<Shell>)
|
|
{
|
|
NonnullRefPtr<Value> value = create<SimpleVariableValue>(m_name);
|
|
if (m_slice)
|
|
value = value->with_slices(*m_slice);
|
|
return value;
|
|
}
|
|
|
|
void SimpleVariable::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
Line::Style style { Line::Style::Foreground(214, 112, 214) };
|
|
if (metadata.is_first_in_list)
|
|
style.unify_with({ Line::Style::Bold });
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, move(style));
|
|
if (m_slice)
|
|
m_slice->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult SimpleVariable::hit_test_position(size_t offset) const
|
|
{
|
|
if (m_slice && m_slice->position().contains(offset))
|
|
return m_slice->hit_test_position(offset);
|
|
|
|
return { this, this, nullptr };
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> SimpleVariable::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
|
|
{
|
|
auto matching_node = hit_test_result.matching_node;
|
|
if (!matching_node)
|
|
return {};
|
|
|
|
if (matching_node != this)
|
|
return {};
|
|
|
|
auto corrected_offset = offset - matching_node->position().start_offset - 1;
|
|
|
|
if (corrected_offset > m_name.length() + 1)
|
|
return {};
|
|
|
|
return shell.complete_variable(m_name, corrected_offset);
|
|
}
|
|
|
|
SimpleVariable::SimpleVariable(Position position, String name)
|
|
: VariableNode(move(position))
|
|
, m_name(move(name))
|
|
{
|
|
}
|
|
|
|
SimpleVariable::~SimpleVariable()
|
|
{
|
|
}
|
|
|
|
void SpecialVariable::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented("(Name)", level + 1);
|
|
print_indented(String { &m_name, 1 }, level + 1);
|
|
print_indented("(Slice)", level + 1);
|
|
if (m_slice)
|
|
m_slice->dump(level + 2);
|
|
else
|
|
print_indented("(None)", level + 2);
|
|
}
|
|
|
|
RefPtr<Value> SpecialVariable::run(RefPtr<Shell>)
|
|
{
|
|
NonnullRefPtr<Value> value = create<SpecialVariableValue>(m_name);
|
|
if (m_slice)
|
|
value = value->with_slices(*m_slice);
|
|
return value;
|
|
}
|
|
|
|
void SpecialVariable::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(214, 112, 214) });
|
|
if (m_slice)
|
|
m_slice->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> SpecialVariable::complete_for_editor(Shell&, size_t, const HitTestResult&)
|
|
{
|
|
return {};
|
|
}
|
|
|
|
HitTestResult SpecialVariable::hit_test_position(size_t offset) const
|
|
{
|
|
if (m_slice && m_slice->position().contains(offset))
|
|
return m_slice->hit_test_position(offset);
|
|
|
|
return { this, this, nullptr };
|
|
}
|
|
|
|
SpecialVariable::SpecialVariable(Position position, char name)
|
|
: VariableNode(move(position))
|
|
, m_name(name)
|
|
{
|
|
}
|
|
|
|
SpecialVariable::~SpecialVariable()
|
|
{
|
|
}
|
|
|
|
void Juxtaposition::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_left->dump(level + 1);
|
|
m_right->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Juxtaposition::run(RefPtr<Shell> shell)
|
|
{
|
|
auto left_value = m_left->run(shell)->resolve_without_cast(shell);
|
|
auto right_value = m_right->run(shell)->resolve_without_cast(shell);
|
|
|
|
auto left = left_value->resolve_as_list(shell);
|
|
auto right = right_value->resolve_as_list(shell);
|
|
|
|
if (left_value->is_string() && right_value->is_string()) {
|
|
|
|
VERIFY(left.size() == 1);
|
|
VERIFY(right.size() == 1);
|
|
|
|
StringBuilder builder;
|
|
builder.append(left[0]);
|
|
builder.append(right[0]);
|
|
|
|
return create<StringValue>(builder.to_string());
|
|
}
|
|
|
|
// Otherwise, treat them as lists and create a list product.
|
|
if (left.is_empty() || right.is_empty())
|
|
return create<ListValue>({});
|
|
|
|
Vector<String> result;
|
|
result.ensure_capacity(left.size() * right.size());
|
|
|
|
StringBuilder builder;
|
|
for (auto& left_element : left) {
|
|
for (auto& right_element : right) {
|
|
builder.append(left_element);
|
|
builder.append(right_element);
|
|
result.append(builder.to_string());
|
|
builder.clear();
|
|
}
|
|
}
|
|
|
|
return create<ListValue>(move(result));
|
|
}
|
|
|
|
void Juxtaposition::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
m_left->highlight_in_editor(editor, shell, metadata);
|
|
|
|
// '~/foo/bar' is special, we have to actually resolve the tilde
|
|
// since that resolution is a pure operation, we can just go ahead
|
|
// and do it to get the value :)
|
|
if (m_right->is_bareword() && m_left->is_tilde()) {
|
|
auto tilde_value = m_left->run(shell)->resolve_as_list(shell)[0];
|
|
auto bareword_value = m_right->run(shell)->resolve_as_list(shell)[0];
|
|
|
|
StringBuilder path_builder;
|
|
path_builder.append(tilde_value);
|
|
path_builder.append("/");
|
|
path_builder.append(bareword_value);
|
|
auto path = path_builder.to_string();
|
|
|
|
if (Core::File::exists(path)) {
|
|
auto realpath = shell.resolve_path(path);
|
|
auto url = URL::create_with_file_protocol(realpath);
|
|
url.set_host(shell.hostname);
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Hyperlink(url.to_string()) });
|
|
}
|
|
|
|
} else {
|
|
m_right->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> Juxtaposition::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
|
|
{
|
|
auto matching_node = hit_test_result.matching_node;
|
|
// '~/foo/bar' is special, we have to actually resolve the tilde
|
|
// then complete the bareword with that path prefix.
|
|
if (m_right->is_bareword() && m_left->is_tilde()) {
|
|
auto tilde_value = m_left->run(shell)->resolve_as_list(shell)[0];
|
|
|
|
auto corrected_offset = offset - matching_node->position().start_offset;
|
|
auto* node = static_cast<BarewordLiteral*>(matching_node.ptr());
|
|
|
|
if (corrected_offset > node->text().length())
|
|
return {};
|
|
|
|
auto text = node->text().substring(1, node->text().length() - 1);
|
|
|
|
return shell.complete_path(tilde_value, text, corrected_offset - 1, Shell::ExecutableOnly::No);
|
|
}
|
|
|
|
return Node::complete_for_editor(shell, offset, hit_test_result);
|
|
}
|
|
|
|
HitTestResult Juxtaposition::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_left->hit_test_position(offset);
|
|
if (!result.closest_node_with_semantic_meaning)
|
|
result.closest_node_with_semantic_meaning = this;
|
|
if (result.matching_node)
|
|
return result;
|
|
|
|
result = m_right->hit_test_position(offset);
|
|
if (!result.closest_node_with_semantic_meaning)
|
|
result.closest_node_with_semantic_meaning = this;
|
|
return result;
|
|
}
|
|
|
|
Juxtaposition::Juxtaposition(Position position, NonnullRefPtr<Node> left, NonnullRefPtr<Node> right)
|
|
: Node(move(position))
|
|
, m_left(move(left))
|
|
, m_right(move(right))
|
|
{
|
|
if (m_left->is_syntax_error())
|
|
set_is_syntax_error(m_left->syntax_error_node());
|
|
else if (m_right->is_syntax_error())
|
|
set_is_syntax_error(m_right->syntax_error_node());
|
|
}
|
|
|
|
Juxtaposition::~Juxtaposition()
|
|
{
|
|
}
|
|
|
|
void StringLiteral::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(m_text, level + 1);
|
|
}
|
|
|
|
RefPtr<Value> StringLiteral::run(RefPtr<Shell>)
|
|
{
|
|
return create<StringValue>(m_text);
|
|
}
|
|
|
|
void StringLiteral::highlight_in_editor(Line::Editor& editor, Shell&, HighlightMetadata metadata)
|
|
{
|
|
if (m_text.is_empty())
|
|
return;
|
|
|
|
Line::Style style { Line::Style::Foreground(Line::Style::XtermColor::Yellow) };
|
|
if (metadata.is_first_in_list)
|
|
style.unify_with({ Line::Style::Bold });
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, move(style));
|
|
}
|
|
|
|
StringLiteral::StringLiteral(Position position, String text)
|
|
: Node(move(position))
|
|
, m_text(move(text))
|
|
{
|
|
}
|
|
|
|
StringLiteral::~StringLiteral()
|
|
{
|
|
}
|
|
|
|
void StringPartCompose::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_left->dump(level + 1);
|
|
m_right->dump(level + 1);
|
|
}
|
|
|
|
RefPtr<Value> StringPartCompose::run(RefPtr<Shell> shell)
|
|
{
|
|
auto left = m_left->run(shell)->resolve_as_list(shell);
|
|
auto right = m_right->run(shell)->resolve_as_list(shell);
|
|
|
|
StringBuilder builder;
|
|
builder.join(" ", left);
|
|
builder.join(" ", right);
|
|
|
|
return create<StringValue>(builder.to_string());
|
|
}
|
|
|
|
void StringPartCompose::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
m_left->highlight_in_editor(editor, shell, metadata);
|
|
m_right->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
|
|
HitTestResult StringPartCompose::hit_test_position(size_t offset) const
|
|
{
|
|
auto result = m_left->hit_test_position(offset);
|
|
if (result.matching_node)
|
|
return result;
|
|
return m_right->hit_test_position(offset);
|
|
}
|
|
|
|
StringPartCompose::StringPartCompose(Position position, NonnullRefPtr<Node> left, NonnullRefPtr<Node> right)
|
|
: Node(move(position))
|
|
, m_left(move(left))
|
|
, m_right(move(right))
|
|
{
|
|
if (m_left->is_syntax_error())
|
|
set_is_syntax_error(m_left->syntax_error_node());
|
|
else if (m_right->is_syntax_error())
|
|
set_is_syntax_error(m_right->syntax_error_node());
|
|
}
|
|
|
|
StringPartCompose::~StringPartCompose()
|
|
{
|
|
}
|
|
|
|
void SyntaxError::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented("(Error text)", level + 1);
|
|
print_indented(m_syntax_error_text, level + 2);
|
|
print_indented("(Can be recovered from)", level + 1);
|
|
print_indented(String::formatted("{}", m_is_continuable), level + 2);
|
|
}
|
|
|
|
RefPtr<Value> SyntaxError::run(RefPtr<Shell> shell)
|
|
{
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, m_syntax_error_text, position());
|
|
return create<StringValue>("");
|
|
}
|
|
|
|
void SyntaxError::highlight_in_editor(Line::Editor& editor, Shell&, HighlightMetadata)
|
|
{
|
|
editor.stylize({ m_position.start_offset, m_position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Red), Line::Style::Bold });
|
|
}
|
|
|
|
SyntaxError::SyntaxError(Position position, String error, bool is_continuable)
|
|
: Node(move(position))
|
|
, m_syntax_error_text(move(error))
|
|
, m_is_continuable(is_continuable)
|
|
{
|
|
}
|
|
|
|
const SyntaxError& SyntaxError::syntax_error_node() const
|
|
{
|
|
return *this;
|
|
}
|
|
|
|
SyntaxError::~SyntaxError()
|
|
{
|
|
}
|
|
|
|
void SyntheticNode::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
}
|
|
|
|
RefPtr<Value> SyntheticNode::run(RefPtr<Shell>)
|
|
{
|
|
return m_value;
|
|
}
|
|
|
|
void SyntheticNode::highlight_in_editor(Line::Editor&, Shell&, HighlightMetadata)
|
|
{
|
|
}
|
|
|
|
SyntheticNode::SyntheticNode(Position position, NonnullRefPtr<Value> value)
|
|
: Node(move(position))
|
|
, m_value(move(value))
|
|
{
|
|
}
|
|
|
|
void Tilde::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
print_indented(m_username, level + 1);
|
|
}
|
|
|
|
RefPtr<Value> Tilde::run(RefPtr<Shell>)
|
|
{
|
|
return create<TildeValue>(m_username);
|
|
}
|
|
|
|
void Tilde::highlight_in_editor(Line::Editor&, Shell&, HighlightMetadata)
|
|
{
|
|
}
|
|
|
|
HitTestResult Tilde::hit_test_position(size_t offset) const
|
|
{
|
|
if (!position().contains(offset))
|
|
return {};
|
|
|
|
return { this, this, nullptr };
|
|
}
|
|
|
|
Vector<Line::CompletionSuggestion> Tilde::complete_for_editor(Shell& shell, size_t offset, const HitTestResult& hit_test_result)
|
|
{
|
|
auto matching_node = hit_test_result.matching_node;
|
|
if (!matching_node)
|
|
return {};
|
|
|
|
if (matching_node != this)
|
|
return {};
|
|
|
|
auto corrected_offset = offset - matching_node->position().start_offset - 1;
|
|
|
|
if (corrected_offset > m_username.length() + 1)
|
|
return {};
|
|
|
|
return shell.complete_user(m_username, corrected_offset);
|
|
}
|
|
|
|
String Tilde::text() const
|
|
{
|
|
StringBuilder builder;
|
|
builder.append('~');
|
|
builder.append(m_username);
|
|
return builder.to_string();
|
|
}
|
|
|
|
Tilde::Tilde(Position position, String username)
|
|
: Node(move(position))
|
|
, m_username(move(username))
|
|
{
|
|
}
|
|
|
|
Tilde::~Tilde()
|
|
{
|
|
}
|
|
|
|
void WriteAppendRedirection::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_path->dump(level + 1);
|
|
print_indented(String::formatted("From {}", m_fd), level + 1);
|
|
}
|
|
|
|
RefPtr<Value> WriteAppendRedirection::run(RefPtr<Shell> shell)
|
|
{
|
|
Command command;
|
|
auto path_segments = m_path->run(shell)->resolve_as_list(shell);
|
|
StringBuilder builder;
|
|
builder.join(" ", path_segments);
|
|
|
|
command.redirections.append(PathRedirection::create(builder.to_string(), m_fd, PathRedirection::WriteAppend));
|
|
return create<CommandValue>(move(command));
|
|
}
|
|
|
|
WriteAppendRedirection::WriteAppendRedirection(Position position, int fd, NonnullRefPtr<Node> path)
|
|
: PathRedirectionNode(move(position), fd, move(path))
|
|
{
|
|
}
|
|
|
|
WriteAppendRedirection::~WriteAppendRedirection()
|
|
{
|
|
}
|
|
|
|
void WriteRedirection::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
m_path->dump(level + 1);
|
|
print_indented(String::formatted("From {}", m_fd), level + 1);
|
|
}
|
|
|
|
RefPtr<Value> WriteRedirection::run(RefPtr<Shell> shell)
|
|
{
|
|
Command command;
|
|
auto path_segments = m_path->run(shell)->resolve_as_list(shell);
|
|
StringBuilder builder;
|
|
builder.join(" ", path_segments);
|
|
|
|
command.redirections.append(PathRedirection::create(builder.to_string(), m_fd, PathRedirection::Write));
|
|
return create<CommandValue>(move(command));
|
|
}
|
|
|
|
WriteRedirection::WriteRedirection(Position position, int fd, NonnullRefPtr<Node> path)
|
|
: PathRedirectionNode(move(position), fd, move(path))
|
|
{
|
|
}
|
|
|
|
WriteRedirection::~WriteRedirection()
|
|
{
|
|
}
|
|
|
|
void VariableDeclarations::dump(int level) const
|
|
{
|
|
Node::dump(level);
|
|
for (auto& var : m_variables) {
|
|
print_indented("Set", level + 1);
|
|
var.name->dump(level + 2);
|
|
var.value->dump(level + 2);
|
|
}
|
|
}
|
|
|
|
RefPtr<Value> VariableDeclarations::run(RefPtr<Shell> shell)
|
|
{
|
|
for (auto& var : m_variables) {
|
|
auto name_value = var.name->run(shell)->resolve_as_list(shell);
|
|
VERIFY(name_value.size() == 1);
|
|
auto name = name_value[0];
|
|
auto value = var.value->run(shell);
|
|
shell->set_local_variable(name, value.release_nonnull());
|
|
}
|
|
|
|
return create<ListValue>({});
|
|
}
|
|
|
|
void VariableDeclarations::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
|
|
{
|
|
metadata.is_first_in_list = false;
|
|
for (auto& var : m_variables) {
|
|
var.name->highlight_in_editor(editor, shell, metadata);
|
|
// Highlight the '='.
|
|
editor.stylize({ var.name->position().end_offset - 1, var.name->position().end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Blue) });
|
|
var.value->highlight_in_editor(editor, shell, metadata);
|
|
}
|
|
}
|
|
|
|
HitTestResult VariableDeclarations::hit_test_position(size_t offset) const
|
|
{
|
|
for (auto decl : m_variables) {
|
|
auto result = decl.value->hit_test_position(offset);
|
|
if (result.matching_node)
|
|
return result;
|
|
}
|
|
|
|
return { nullptr, nullptr, nullptr };
|
|
}
|
|
|
|
VariableDeclarations::VariableDeclarations(Position position, Vector<Variable> variables)
|
|
: Node(move(position))
|
|
, m_variables(move(variables))
|
|
{
|
|
for (auto& decl : m_variables) {
|
|
if (decl.name->is_syntax_error()) {
|
|
set_is_syntax_error(decl.name->syntax_error_node());
|
|
break;
|
|
}
|
|
if (decl.value->is_syntax_error()) {
|
|
set_is_syntax_error(decl.value->syntax_error_node());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
VariableDeclarations::~VariableDeclarations()
|
|
{
|
|
}
|
|
|
|
Value::~Value()
|
|
{
|
|
}
|
|
Vector<AST::Command> Value::resolve_as_commands(RefPtr<Shell> shell)
|
|
{
|
|
Command command;
|
|
command.argv = resolve_as_list(shell);
|
|
return { command };
|
|
}
|
|
|
|
ListValue::ListValue(Vector<String> values)
|
|
{
|
|
if (values.is_empty())
|
|
return;
|
|
m_contained_values.ensure_capacity(values.size());
|
|
for (auto& str : values)
|
|
m_contained_values.append(adopt_ref(*new StringValue(move(str))));
|
|
}
|
|
|
|
NonnullRefPtr<Value> Value::with_slices(NonnullRefPtr<Slice> slice) const&
|
|
{
|
|
auto value = clone();
|
|
value->m_slices.append(move(slice));
|
|
return value;
|
|
}
|
|
|
|
NonnullRefPtr<Value> Value::with_slices(NonnullRefPtrVector<Slice> slices) const&
|
|
{
|
|
auto value = clone();
|
|
value->m_slices.append(move(slices));
|
|
return value;
|
|
}
|
|
|
|
ListValue::~ListValue()
|
|
{
|
|
}
|
|
|
|
Vector<String> ListValue::resolve_as_list(RefPtr<Shell> shell)
|
|
{
|
|
Vector<String> values;
|
|
for (auto& value : m_contained_values)
|
|
values.append(value.resolve_as_list(shell));
|
|
|
|
return resolve_slices(shell, move(values), m_slices);
|
|
}
|
|
|
|
NonnullRefPtr<Value> ListValue::resolve_without_cast(RefPtr<Shell> shell)
|
|
{
|
|
NonnullRefPtrVector<Value> values;
|
|
for (auto& value : m_contained_values)
|
|
values.append(value.resolve_without_cast(shell));
|
|
|
|
NonnullRefPtr<Value> value = create<ListValue>(move(values));
|
|
if (!m_slices.is_empty())
|
|
value = value->with_slices(m_slices);
|
|
return value;
|
|
}
|
|
|
|
CommandValue::~CommandValue()
|
|
{
|
|
}
|
|
|
|
CommandSequenceValue::~CommandSequenceValue()
|
|
{
|
|
}
|
|
|
|
Vector<String> CommandSequenceValue::resolve_as_list(RefPtr<Shell> shell)
|
|
{
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "Unexpected cast of a command sequence to a list");
|
|
return {};
|
|
}
|
|
|
|
Vector<Command> CommandSequenceValue::resolve_as_commands(RefPtr<Shell>)
|
|
{
|
|
return m_contained_values;
|
|
}
|
|
|
|
Vector<String> CommandValue::resolve_as_list(RefPtr<Shell> shell)
|
|
{
|
|
shell->raise_error(Shell::ShellError::EvaluatedSyntaxError, "Unexpected cast of a command to a list");
|
|
return {};
|
|
}
|
|
|
|
Vector<Command> CommandValue::resolve_as_commands(RefPtr<Shell>)
|
|
{
|
|
return { m_command };
|
|
}
|
|
|
|
JobValue::~JobValue()
|
|
{
|
|
}
|
|
|
|
StringValue::~StringValue()
|
|
{
|
|
}
|
|
Vector<String> StringValue::resolve_as_list(RefPtr<Shell> shell)
|
|
{
|
|
if (is_list()) {
|
|
auto parts = StringView(m_string).split_view(m_split, m_keep_empty);
|
|
Vector<String> result;
|
|
result.ensure_capacity(parts.size());
|
|
for (auto& part : parts)
|
|
result.append(part);
|
|
return resolve_slices(shell, move(result), m_slices);
|
|
}
|
|
|
|
return { resolve_slices(shell, String { m_string }, m_slices) };
|
|
}
|
|
|
|
NonnullRefPtr<Value> StringValue::resolve_without_cast(RefPtr<Shell> shell)
|
|
{
|
|
if (is_list())
|
|
return create<AST::ListValue>(resolve_as_list(shell)); // No need to reapply the slices.
|
|
|
|
return *this;
|
|
}
|
|
|
|
GlobValue::~GlobValue()
|
|
{
|
|
}
|
|
Vector<String> GlobValue::resolve_as_list(RefPtr<Shell> shell)
|
|
{
|
|
if (!shell)
|
|
return { resolve_slices(shell, String { m_glob }, m_slices) };
|
|
|
|
auto results = shell->expand_globs(m_glob, shell->cwd);
|
|
if (results.is_empty())
|
|
shell->raise_error(Shell::ShellError::InvalidGlobError, "Glob did not match anything!", m_generation_position);
|
|
return resolve_slices(shell, move(results), m_slices);
|
|
}
|
|
|
|
SimpleVariableValue::~SimpleVariableValue()
|
|
{
|
|
}
|
|
Vector<String> SimpleVariableValue::resolve_as_list(RefPtr<Shell> shell)
|
|
{
|
|
if (!shell)
|
|
return resolve_slices(shell, Vector<String> {}, m_slices);
|
|
|
|
if (auto value = resolve_without_cast(shell); value != this)
|
|
return value->resolve_as_list(shell);
|
|
|
|
char* env_value = getenv(m_name.characters());
|
|
if (env_value == nullptr)
|
|
return { resolve_slices(shell, "", m_slices) };
|
|
|
|
return { resolve_slices(shell, String { env_value }, m_slices) };
|
|
}
|
|
|
|
NonnullRefPtr<Value> SimpleVariableValue::resolve_without_cast(RefPtr<Shell> shell)
|
|
{
|
|
VERIFY(shell);
|
|
|
|
if (auto value = shell->lookup_local_variable(m_name)) {
|
|
auto result = value.release_nonnull();
|
|
// If a slice is applied, add it.
|
|
if (!m_slices.is_empty())
|
|
result = result->with_slices(m_slices);
|
|
|
|
return result;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
SpecialVariableValue::~SpecialVariableValue()
|
|
{
|
|
}
|
|
|
|
Vector<String> SpecialVariableValue::resolve_as_list(RefPtr<Shell> shell)
|
|
{
|
|
if (!shell)
|
|
return {};
|
|
|
|
switch (m_name) {
|
|
case '?':
|
|
return { resolve_slices(shell, String::number(shell->last_return_code), m_slices) };
|
|
case '$':
|
|
return { resolve_slices(shell, String::number(getpid()), m_slices) };
|
|
case '*':
|
|
if (auto argv = shell->lookup_local_variable("ARGV"))
|
|
return resolve_slices(shell, argv->resolve_as_list(shell), m_slices);
|
|
return resolve_slices(shell, Vector<String> {}, m_slices);
|
|
case '#':
|
|
if (auto argv = shell->lookup_local_variable("ARGV")) {
|
|
if (argv->is_list()) {
|
|
auto list_argv = static_cast<AST::ListValue*>(argv.ptr());
|
|
return { resolve_slices(shell, String::number(list_argv->values().size()), m_slices) };
|
|
}
|
|
return { resolve_slices(shell, "1", m_slices) };
|
|
}
|
|
return { resolve_slices(shell, "0", m_slices) };
|
|
default:
|
|
return { resolve_slices(shell, "", m_slices) };
|
|
}
|
|
}
|
|
|
|
TildeValue::~TildeValue()
|
|
{
|
|
}
|
|
Vector<String> TildeValue::resolve_as_list(RefPtr<Shell> shell)
|
|
{
|
|
StringBuilder builder;
|
|
builder.append("~");
|
|
builder.append(m_username);
|
|
|
|
if (!shell)
|
|
return { resolve_slices(shell, builder.to_string(), m_slices) };
|
|
|
|
return { resolve_slices(shell, shell->expand_tilde(builder.to_string()), m_slices) };
|
|
}
|
|
|
|
Result<NonnullRefPtr<Rewiring>, String> CloseRedirection::apply() const
|
|
{
|
|
return adopt_ref(*new Rewiring(fd, fd, Rewiring::Close::ImmediatelyCloseNew));
|
|
}
|
|
|
|
CloseRedirection::~CloseRedirection()
|
|
{
|
|
}
|
|
|
|
Result<NonnullRefPtr<Rewiring>, String> PathRedirection::apply() const
|
|
{
|
|
auto check_fd_and_return = [my_fd = this->fd](int fd, const String& path) -> Result<NonnullRefPtr<Rewiring>, String> {
|
|
if (fd < 0) {
|
|
String error = strerror(errno);
|
|
dbgln("open() failed for '{}' with {}", path, error);
|
|
return error;
|
|
}
|
|
return adopt_ref(*new Rewiring(fd, my_fd, Rewiring::Close::Old));
|
|
};
|
|
switch (direction) {
|
|
case AST::PathRedirection::WriteAppend:
|
|
return check_fd_and_return(open(path.characters(), O_WRONLY | O_CREAT | O_APPEND, 0666), path);
|
|
|
|
case AST::PathRedirection::Write:
|
|
return check_fd_and_return(open(path.characters(), O_WRONLY | O_CREAT | O_TRUNC, 0666), path);
|
|
|
|
case AST::PathRedirection::Read:
|
|
return check_fd_and_return(open(path.characters(), O_RDONLY), path);
|
|
|
|
case AST::PathRedirection::ReadWrite:
|
|
return check_fd_and_return(open(path.characters(), O_RDWR | O_CREAT, 0666), path);
|
|
}
|
|
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
PathRedirection::~PathRedirection()
|
|
{
|
|
}
|
|
|
|
FdRedirection::~FdRedirection()
|
|
{
|
|
}
|
|
|
|
Redirection::~Redirection()
|
|
{
|
|
}
|
|
|
|
}
|