mirror of
https://github.com/fish-shell/fish-shell
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42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
// Functions for executing the eval builtin.
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#include "config.h" // IWYU pragma: keep
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#include <cerrno>
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#include <cstddef>
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#include "builtin.h"
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#include "common.h"
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#include "exec.h"
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#include "fallback.h" // IWYU pragma: keep
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#include "io.h"
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#include "parser.h"
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#include "proc.h"
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#include "wgetopt.h"
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#include "wutil.h" // IWYU pragma: keep
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/// Implementation of eval builtin.
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int builtin_eval(parser_t &parser, io_streams_t &streams, wchar_t **argv) {
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int argc = builtin_count_args(argv);
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wcstring new_cmd;
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for (int i = 1; i < argc; ++i) {
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if (i > 1) new_cmd += L' ';
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new_cmd += argv[i];
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}
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const auto cached_exec_count = parser.libdata().exec_count;
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int status = STATUS_CMD_OK;
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if (argc > 1) {
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if (parser.eval(new_cmd, *streams.io_chain) != eval_result_t::ok) {
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status = STATUS_CMD_ERROR;
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} else if (cached_exec_count == parser.libdata().exec_count) {
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// Issue #5692, in particular, to catch `eval ""`, `eval "begin; end;"`, etc.
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// where we have an argument but nothing is executed.
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status = STATUS_CMD_OK;
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} else {
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status = parser.get_last_status();
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}
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}
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return status;
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}
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