mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-11-23 03:44:04 +08:00
Refactor block_t storage in parser_t from a linked list to a vector
This commit is contained in:
ridiculousfish
parent
12be83562d
commit
e38217683c
160
builtin.cpp
160
builtin.cpp
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@ -831,7 +831,8 @@ static int builtin_block(parser_t &parser, wchar_t **argv)
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}
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else
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{
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block_t *block=parser.current_block;
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size_t block_idx = 0;
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block_t *block = parser.block_at_index(block_idx);
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event_blockage_t eb = {};
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eb.typemask = type;
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@ -840,20 +841,24 @@ static int builtin_block(parser_t &parser, wchar_t **argv)
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{
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case LOCAL:
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{
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if (!block->outer)
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block=0;
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// If this is the outermost block, then we're global
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if (block_idx + 1 >= parser.block_count())
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{
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block = NULL;
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}
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break;
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}
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case GLOBAL:
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{
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block=0;
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block=NULL;
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}
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case UNSET:
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{
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while (block &&
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block->type() != FUNCTION_CALL &&
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block->type() != FUNCTION_CALL_NO_SHADOW)
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block = block->outer;
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while (block != NULL && block->type() != FUNCTION_CALL && block->type() != FUNCTION_CALL_NO_SHADOW)
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{
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// Set it in function scope
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block = parser.block_at_index(++block_idx);
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}
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}
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}
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if (block)
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@ -1863,18 +1868,21 @@ static int builtin_function(parser_t &parser, wchar_t **argv)
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if (is_subshell)
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{
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block_t *b = parser.current_block;
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while (b && (b->type() != SUBST))
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b = b->outer;
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if (b)
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size_t block_idx = 0;
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/* Find the outermost substitution block */
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for (block_idx = 0; ; block_idx++)
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{
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b=b->outer;
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const block_t *b = parser.block_at_index(block_idx);
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if (b == NULL || b->type() == SUBST)
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break;
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}
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if (b->job)
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/* Go one step beyond that, to get to the caller */
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const block_t *caller_block = parser.block_at_index(block_idx + 1);
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if (caller_block != NULL && caller_block->job != NULL)
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{
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job_id = b->job->job_id;
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job_id = caller_block->job->job_id;
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}
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}
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@ -2058,8 +2066,8 @@ static int builtin_function(parser_t &parser, wchar_t **argv)
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}
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}
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parser.current_block->tok_pos = parser.get_pos();
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parser.current_block->skip = 1;
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parser.current_block()->tok_pos = parser.get_pos();
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parser.current_block()->skip = 1;
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return STATUS_BUILTIN_OK;
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}
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@ -2712,7 +2720,7 @@ static int builtin_status(parser_t &parser, wchar_t **argv)
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case STACK_TRACE:
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{
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parser.stack_trace(parser.current_block, stdout_buffer);
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parser.stack_trace(0, stdout_buffer);
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break;
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}
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@ -2727,7 +2735,7 @@ static int builtin_status(parser_t &parser, wchar_t **argv)
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job_control_mode==JOB_CONTROL_INTERACTIVE?_(L"Only on interactive jobs"):
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(job_control_mode==JOB_CONTROL_NONE ? _(L"Never") : _(L"Always")));
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parser.stack_trace(parser.current_block, stdout_buffer);
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parser.stack_trace(0, stdout_buffer);
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break;
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}
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}
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@ -3413,19 +3421,19 @@ static int builtin_for(parser_t &parser, wchar_t **argv)
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}
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else
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{
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parser.current_block->skip=1;
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parser.current_block()->skip=1;
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}
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}
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return res;
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}
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/**
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The begin builtin. Creates a nex block.
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The begin builtin. Creates a new block.
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*/
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static int builtin_begin(parser_t &parser, wchar_t **argv)
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{
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parser.push_block(new scope_block_t(BEGIN));
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parser.current_block->tok_pos = parser.get_pos();
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parser.current_block()->tok_pos = parser.get_pos();
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return proc_get_last_status();
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}
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@ -3437,7 +3445,7 @@ static int builtin_begin(parser_t &parser, wchar_t **argv)
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*/
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static int builtin_end(parser_t &parser, wchar_t **argv)
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{
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if (!parser.current_block->outer)
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if (! parser.block_at_index(1))
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{
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append_format(stderr_buffer,
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_(L"%ls: Not inside of block\n"),
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@ -3455,7 +3463,8 @@ static int builtin_end(parser_t &parser, wchar_t **argv)
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*/
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bool kill_block = true;
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switch (parser.current_block->type())
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block_t * const current_block = parser.current_block();
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switch (current_block->type())
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{
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case WHILE:
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{
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@ -3463,13 +3472,13 @@ static int builtin_end(parser_t &parser, wchar_t **argv)
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If this is a while loop, we rewind the loop unless
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it's the last lap, in which case we continue.
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*/
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if (!(parser.current_block->skip && (parser.current_block->loop_status != LOOP_CONTINUE)))
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if (!(current_block->skip && (current_block->loop_status != LOOP_CONTINUE)))
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{
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parser.current_block->loop_status = LOOP_NORMAL;
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parser.current_block->skip = 0;
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current_block->loop_status = LOOP_NORMAL;
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current_block->skip = 0;
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kill_block = false;
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parser.set_pos(parser.current_block->tok_pos);
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while_block_t *blk = static_cast<while_block_t *>(parser.current_block);
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parser.set_pos(current_block->tok_pos);
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while_block_t *blk = static_cast<while_block_t *>(current_block);
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blk->status = WHILE_TEST_AGAIN;
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}
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@ -3492,9 +3501,9 @@ static int builtin_end(parser_t &parser, wchar_t **argv)
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/*
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set loop variable to next element, and rewind to the beginning of the block.
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*/
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for_block_t *fb = static_cast<for_block_t *>(parser.current_block);
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for_block_t *fb = static_cast<for_block_t *>(current_block);
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wcstring_list_t &for_vars = fb->sequence;
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if (parser.current_block->loop_status == LOOP_BREAK)
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if (current_block->loop_status == LOOP_BREAK)
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{
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for_vars.clear();
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}
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@ -3505,18 +3514,18 @@ static int builtin_end(parser_t &parser, wchar_t **argv)
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for_vars.pop_back();
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const wcstring &for_variable = fb->variable;
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env_set(for_variable, val.c_str(), ENV_LOCAL);
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parser.current_block->loop_status = LOOP_NORMAL;
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parser.current_block->skip = 0;
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current_block->loop_status = LOOP_NORMAL;
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current_block->skip = 0;
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kill_block = false;
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parser.set_pos(parser.current_block->tok_pos);
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parser.set_pos(current_block->tok_pos);
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}
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break;
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}
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case FUNCTION_DEF:
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{
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function_def_block_t *fdb = static_cast<function_def_block_t *>(parser.current_block);
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function_def_block_t *fdb = static_cast<function_def_block_t *>(current_block);
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function_data_t &d = fdb->function_data;
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if (d.name.empty())
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@ -3535,8 +3544,8 @@ static int builtin_end(parser_t &parser, wchar_t **argv)
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for the specified function
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*/
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wchar_t *def = wcsndup(parser.get_buffer()+parser.current_block->tok_pos,
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parser.get_job_pos()-parser.current_block->tok_pos);
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wchar_t *def = wcsndup(parser.get_buffer()+current_block->tok_pos,
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parser.get_job_pos()-current_block->tok_pos);
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d.definition = def;
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function_add(d, parser);
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@ -3569,9 +3578,9 @@ static int builtin_else(parser_t &parser, wchar_t **argv)
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{
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bool block_ok = false;
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if_block_t *if_block = NULL;
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if (parser.current_block != NULL && parser.current_block->type() == IF)
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if (parser.current_block() != NULL && parser.current_block()->type() == IF)
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{
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if_block = static_cast<if_block_t *>(parser.current_block);
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if_block = static_cast<if_block_t *>(parser.current_block());
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/* Ensure that we're past IF but not up to an ELSE */
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if (if_block->if_expr_evaluated && ! if_block->else_evaluated)
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{
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@ -3612,7 +3621,6 @@ static int builtin_break_continue(parser_t &parser, wchar_t **argv)
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int is_break = (wcscmp(argv[0],L"break")==0);
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int argc = builtin_count_args(argv);
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block_t *b = parser.current_block;
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if (argc != 1)
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{
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@ -3625,15 +3633,16 @@ static int builtin_break_continue(parser_t &parser, wchar_t **argv)
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return STATUS_BUILTIN_ERROR;
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}
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while ((b != 0) &&
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(b->type() != WHILE) &&
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(b->type() != FOR))
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/* Find the index of the enclosing for or while loop. Recall that incrementing loop_idx goes 'up' to outer blocks */
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size_t loop_idx;
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for (loop_idx = 0; loop_idx < parser.block_count(); loop_idx++)
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{
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b = b->outer;
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const block_t *b = parser.block_at_index(loop_idx);
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if (b->type() == WHILE || b->type() == FOR)
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break;
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}
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if (b == 0)
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if (loop_idx >= parser.block_count())
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{
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append_format(stderr_buffer,
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_(L"%ls: Not inside of loop\n"),
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@ -3642,15 +3651,17 @@ static int builtin_break_continue(parser_t &parser, wchar_t **argv)
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return STATUS_BUILTIN_ERROR;
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}
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b = parser.current_block;
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while ((b->type() != WHILE) &&
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(b->type() != FOR))
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/* Skip blocks interior to the loop */
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size_t block_idx = loop_idx;
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while (block_idx--)
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{
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b->skip=1;
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b = b->outer;
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parser.block_at_index(block_idx)->skip = true;
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}
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b->skip=1;
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b->loop_status = is_break?LOOP_BREAK:LOOP_CONTINUE;
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/* Skip the loop itself */
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block_t *loop_block = parser.block_at_index(loop_idx);
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loop_block->skip = true;
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loop_block->loop_status = is_break ? LOOP_BREAK : LOOP_CONTINUE;
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return STATUS_BUILTIN_OK;
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}
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@ -3679,8 +3690,6 @@ static int builtin_return(parser_t &parser, wchar_t **argv)
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int argc = builtin_count_args(argv);
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int status = proc_get_last_status();
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block_t *b = parser.current_block;
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switch (argc)
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{
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case 1:
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@ -3709,15 +3718,16 @@ static int builtin_return(parser_t &parser, wchar_t **argv)
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return STATUS_BUILTIN_ERROR;
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}
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while ((b != 0) &&
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(b->type() != FUNCTION_CALL &&
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b->type() != FUNCTION_CALL_NO_SHADOW))
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/* Find the function block */
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size_t function_block_idx;
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for (function_block_idx = 0; function_block_idx < parser.block_count(); function_block_idx++)
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{
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b = b->outer;
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const block_t *b = parser.block_at_index(function_block_idx);
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if (b->type() == FUNCTION_CALL || b->type() == FUNCTION_CALL_NO_SHADOW)
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break;
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}
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if (b == 0)
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if (function_block_idx >= parser.block_count())
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{
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append_format(stderr_buffer,
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_(L"%ls: Not inside of function\n"),
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@ -3725,17 +3735,15 @@ static int builtin_return(parser_t &parser, wchar_t **argv)
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builtin_print_help(parser, argv[0], stderr_buffer);
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return STATUS_BUILTIN_ERROR;
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}
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b = parser.current_block;
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while ((b->type() != FUNCTION_CALL &&
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b->type() != FUNCTION_CALL_NO_SHADOW))
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/* Skip everything up to (and then including) the function block */
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for (size_t i=0; i < function_block_idx; i++)
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{
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block_t *b = parser.block_at_index(i);
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b->mark_as_fake();
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b->skip=1;
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b = b->outer;
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b->skip = true;
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}
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b->skip=1;
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parser.block_at_index(function_block_idx)->skip = true;
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return status;
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}
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@ -3762,7 +3770,7 @@ static int builtin_switch(parser_t &parser, wchar_t **argv)
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else
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{
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parser.push_block(new switch_block_t(argv[1]));
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parser.current_block->skip=1;
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parser.current_block()->skip=1;
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res = proc_get_last_status();
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}
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@ -3779,7 +3787,7 @@ static int builtin_case(parser_t &parser, wchar_t **argv)
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int i;
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wchar_t *unescaped=0;
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if (parser.current_block->type() != SWITCH)
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if (parser.current_block()->type() != SWITCH)
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{
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append_format(stderr_buffer,
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_(L"%ls: 'case' command while not in switch block\n"),
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@ -3788,8 +3796,8 @@ static int builtin_case(parser_t &parser, wchar_t **argv)
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return STATUS_BUILTIN_ERROR;
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}
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parser.current_block->skip = 1;
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switch_block_t *sb = static_cast<switch_block_t *>(parser.current_block);
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parser.current_block()->skip = 1;
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switch_block_t *sb = static_cast<switch_block_t *>(parser.current_block());
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if (sb->switch_taken)
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{
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return proc_get_last_status();
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@ -3806,7 +3814,7 @@ static int builtin_case(parser_t &parser, wchar_t **argv)
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if (match)
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{
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parser.current_block->skip = 0;
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parser.current_block()->skip = 0;
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sb->switch_taken = true;
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break;
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}
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@ -144,12 +144,15 @@ static int event_match(const event_t &classv, const event_t &instance)
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*/
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static int event_is_blocked(const event_t &e)
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{
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block_t *block;
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const block_t *block;
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parser_t &parser = parser_t::principal_parser();
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for (block = parser.current_block; block; block = block->outer)
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size_t idx = 0;
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while ((block = parser.block_at_index(idx++)))
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{
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if (event_block_list_blocks_type(block->event_blocks, e.type))
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return true;
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}
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return event_block_list_blocks_type(parser.global_event_blocks, e.type);
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}
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3
exec.cpp
3
exec.cpp
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@ -580,7 +580,8 @@ static void exec_no_exec(parser_t &parser, const job_t *job)
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}
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else if (builtin_name == L"end")
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{
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if (parser.current_block == NULL || parser.current_block->type() == TOP)
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const block_t *block = parser.current_block();
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if (block == NULL || block->type() == TOP)
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{
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fprintf(stderr, "Warning: not popping the root block\n");
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}
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@ -189,7 +189,7 @@ void function_add(const function_data_t &data, const parser_t &parser)
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/* Create and store a new function */
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const wchar_t *filename = reader_current_filename();
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int def_offset = parser.line_number_of_character_at_offset(parser.current_block->tok_pos) - 1;
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int def_offset = parser.line_number_of_character_at_offset(parser.current_block()->tok_pos) - 1;
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const function_map_t::value_type new_pair(data.name, function_info_t(data, filename, def_offset, is_autoload));
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loaded_functions.insert(new_pair);
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196
parser.cpp
196
parser.cpp
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@ -325,7 +325,6 @@ parser_t::parser_t(enum parser_type_t type, bool errors) :
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current_tokenizer_pos(0),
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job_start_pos(0),
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eval_level(-1),
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current_block(NULL),
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block_io(shared_ptr<io_data_t>())
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{
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@ -352,39 +351,36 @@ void parser_t::skip_all_blocks(void)
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if (s_principal_parser)
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{
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//write(2, "Cancelling blocks\n", strlen("Cancelling blocks\n"));
|
||||
block_t *c = s_principal_parser->current_block;
|
||||
while (c)
|
||||
for (size_t i=0; i < s_principal_parser->block_count(); i++)
|
||||
{
|
||||
c->skip = true;
|
||||
//fprintf(stderr, " Cancelled %p\n", c);
|
||||
c = c->outer;
|
||||
s_principal_parser->block_at_index(i)->skip = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void parser_t::push_block(block_t *newv)
|
||||
void parser_t::push_block(block_t *new_current)
|
||||
{
|
||||
const enum block_type_t type = newv->type();
|
||||
newv->src_lineno = parser_t::get_lineno();
|
||||
newv->src_filename = parser_t::current_filename()?intern(parser_t::current_filename()):0;
|
||||
const enum block_type_t type = new_current->type();
|
||||
new_current->src_lineno = parser_t::get_lineno();
|
||||
new_current->src_filename = parser_t::current_filename()?intern(parser_t::current_filename()):0;
|
||||
|
||||
newv->outer = current_block;
|
||||
if (current_block && current_block->skip)
|
||||
newv->mark_as_fake();
|
||||
const block_t *old_current = this->current_block();
|
||||
if (old_current && old_current->skip)
|
||||
new_current->mark_as_fake();
|
||||
|
||||
/*
|
||||
New blocks should be skipped if the outer block is skipped,
|
||||
except TOP ans SUBST block, which open up new environments. Fake
|
||||
blocks should always be skipped. Rather complicated... :-(
|
||||
*/
|
||||
newv->skip=current_block?current_block->skip:0;
|
||||
new_current->skip = old_current ? old_current->skip : 0;
|
||||
|
||||
/*
|
||||
Type TOP and SUBST are never skipped
|
||||
*/
|
||||
if (type == TOP || type == SUBST)
|
||||
{
|
||||
newv->skip = 0;
|
||||
new_current->skip = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -392,27 +388,26 @@ void parser_t::push_block(block_t *newv)
|
|||
*/
|
||||
if (type == FAKE || type == FUNCTION_DEF)
|
||||
{
|
||||
newv->skip = 1;
|
||||
new_current->skip = 1;
|
||||
}
|
||||
|
||||
newv->job = 0;
|
||||
newv->loop_status=LOOP_NORMAL;
|
||||
new_current->job = 0;
|
||||
new_current->loop_status=LOOP_NORMAL;
|
||||
|
||||
this->block_stack.push_back(new_current);
|
||||
|
||||
current_block = newv;
|
||||
|
||||
if ((newv->type() != FUNCTION_DEF) &&
|
||||
(newv->type() != FAKE) &&
|
||||
(newv->type() != TOP))
|
||||
if ((new_current->type() != FUNCTION_DEF) &&
|
||||
(new_current->type() != FAKE) &&
|
||||
(new_current->type() != TOP))
|
||||
{
|
||||
env_push(type == FUNCTION_CALL);
|
||||
newv->wants_pop_env = true;
|
||||
new_current->wants_pop_env = true;
|
||||
}
|
||||
}
|
||||
|
||||
void parser_t::pop_block()
|
||||
{
|
||||
block_t *old = current_block;
|
||||
if (!current_block)
|
||||
if (block_stack.empty())
|
||||
{
|
||||
debug(1,
|
||||
L"function %s called on empty block stack.",
|
||||
|
|
@ -421,7 +416,8 @@ void parser_t::pop_block()
|
|||
return;
|
||||
}
|
||||
|
||||
current_block = current_block->outer;
|
||||
block_t *old = block_stack.back();
|
||||
block_stack.pop_back();
|
||||
|
||||
if (old->wants_pop_env)
|
||||
env_pop();
|
||||
|
|
@ -441,6 +437,30 @@ const wchar_t *parser_t::get_block_desc(int block) const
|
|||
return _(UNKNOWN_BLOCK);
|
||||
}
|
||||
|
||||
const block_t *parser_t::block_at_index(size_t idx) const
|
||||
{
|
||||
/* 0 corresponds to the last element in our vector */
|
||||
size_t count = block_stack.size();
|
||||
return idx < count ? block_stack.at(count - idx - 1) : NULL;
|
||||
}
|
||||
|
||||
block_t *parser_t::block_at_index(size_t idx)
|
||||
{
|
||||
size_t count = block_stack.size();
|
||||
return idx < count ? block_stack.at(count - idx - 1) : NULL;
|
||||
}
|
||||
|
||||
const block_t *parser_t::current_block() const
|
||||
{
|
||||
return block_stack.empty() ? NULL : block_stack.back();
|
||||
}
|
||||
|
||||
block_t *parser_t::current_block()
|
||||
{
|
||||
return block_stack.empty() ? NULL : block_stack.back();
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Returns 1 if the specified command is a builtin that may not be used in a pipeline
|
||||
*/
|
||||
|
|
@ -807,13 +827,15 @@ int parser_t::eval_args(const wchar_t *line, std::vector<completion_t> &args)
|
|||
return 1;
|
||||
}
|
||||
|
||||
void parser_t::stack_trace(block_t *b, wcstring &buff)
|
||||
void parser_t::stack_trace(size_t block_idx, wcstring &buff)
|
||||
{
|
||||
/*
|
||||
Check if we should end the recursion
|
||||
*/
|
||||
if (!b)
|
||||
if (block_idx >= this->block_count())
|
||||
return;
|
||||
|
||||
const block_t *b = this->block_at_index(block_idx);
|
||||
|
||||
if (b->type()==EVENT)
|
||||
{
|
||||
|
|
@ -908,7 +930,7 @@ void parser_t::stack_trace(block_t *b, wcstring &buff)
|
|||
/*
|
||||
Recursively print the next block
|
||||
*/
|
||||
parser_t::stack_trace(b->outer, buff);
|
||||
parser_t::stack_trace(block_idx + 1, buff);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -921,22 +943,19 @@ const wchar_t *parser_t::is_function() const
|
|||
{
|
||||
// PCA: Have to make this a string somehow
|
||||
ASSERT_IS_MAIN_THREAD();
|
||||
wcstring result;
|
||||
|
||||
block_t *b = current_block;
|
||||
while (1)
|
||||
const wchar_t *result = NULL;
|
||||
for (size_t block_idx = 0; block_idx < this->block_count(); block_idx++)
|
||||
{
|
||||
if (!b)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
const block_t *b = this->block_at_index(block_idx);
|
||||
if (b->type() == FUNCTION_CALL)
|
||||
{
|
||||
const function_block_t *fb = static_cast<const function_block_t *>(b);
|
||||
return fb->name.c_str();
|
||||
result = fb->name.c_str();
|
||||
break;
|
||||
}
|
||||
b=b->outer;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -974,21 +993,17 @@ const wchar_t *parser_t::current_filename() const
|
|||
ASSERT_IS_MAIN_THREAD();
|
||||
assert(this == &principal_parser());
|
||||
|
||||
block_t *b = current_block;
|
||||
|
||||
while (1)
|
||||
for (size_t i=0; i < this->block_count(); i++)
|
||||
{
|
||||
if (!b)
|
||||
{
|
||||
return reader_current_filename();
|
||||
}
|
||||
const block_t *b = this->block_at_index(i);
|
||||
if (b->type() == FUNCTION_CALL)
|
||||
{
|
||||
const function_block_t *fb = static_cast<const function_block_t *>(b);
|
||||
return function_get_definition_file(fb->name);
|
||||
}
|
||||
b=b->outer;
|
||||
}
|
||||
return reader_current_filename();
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -1129,7 +1144,7 @@ const wchar_t *parser_t::current_line()
|
|||
}
|
||||
|
||||
free((void *)line);
|
||||
parser_t::stack_trace(current_block, lineinfo);
|
||||
parser_t::stack_trace(0, lineinfo);
|
||||
|
||||
return lineinfo.c_str();
|
||||
}
|
||||
|
|
@ -1239,7 +1254,7 @@ job_t *parser_t::job_get_from_pid(int pid)
|
|||
\param j the job to which the process belongs to
|
||||
\param tok the tokenizer to read options from
|
||||
\param args the argument list to insert options into
|
||||
\param args unskip whether we should ignore current_block->skip. Big hack because of our dumb handling of if statements.
|
||||
\param args unskip whether we should ignore current_block()->skip. Big hack because of our dumb handling of if statements.
|
||||
*/
|
||||
void parser_t::parse_job_argument_list(process_t *p,
|
||||
job_t *j,
|
||||
|
|
@ -1336,7 +1351,7 @@ void parser_t::parse_job_argument_list(process_t *p,
|
|||
{
|
||||
skip = 1;
|
||||
}
|
||||
else if (current_block->skip && ! unskip)
|
||||
else if (current_block()->skip && ! unskip)
|
||||
{
|
||||
/*
|
||||
If this command should be skipped, we do not expand the arguments
|
||||
|
|
@ -1344,12 +1359,12 @@ void parser_t::parse_job_argument_list(process_t *p,
|
|||
skip=1;
|
||||
|
||||
/* But if this is in fact a case statement or an elseif statement, then it should be evaluated */
|
||||
block_type_t type = current_block->type();
|
||||
block_type_t type = current_block()->type();
|
||||
if (type == SWITCH && args.at(0).completion == L"case" && p->type == INTERNAL_BUILTIN)
|
||||
{
|
||||
skip=0;
|
||||
}
|
||||
else if (job_get_flag(j, JOB_ELSEIF) && ! job_should_skip_elseif(j, current_block))
|
||||
else if (job_get_flag(j, JOB_ELSEIF) && ! job_should_skip_elseif(j, current_block()))
|
||||
{
|
||||
skip=0;
|
||||
}
|
||||
|
|
@ -1357,7 +1372,7 @@ void parser_t::parse_job_argument_list(process_t *p,
|
|||
else
|
||||
{
|
||||
/* If this is an else if, and we should skip it, then don't expand any arguments */
|
||||
if (job_get_flag(j, JOB_ELSEIF) && job_should_skip_elseif(j, current_block))
|
||||
if (job_get_flag(j, JOB_ELSEIF) && job_should_skip_elseif(j, current_block()))
|
||||
{
|
||||
skip = 1;
|
||||
}
|
||||
|
|
@ -1440,7 +1455,7 @@ void parser_t::parse_job_argument_list(process_t *p,
|
|||
Otherwise, bogus errors may be the result. (Do check
|
||||
that token is string, though)
|
||||
*/
|
||||
if (current_block->skip && ! unskip)
|
||||
if (current_block()->skip && ! unskip)
|
||||
{
|
||||
tok_next(tok);
|
||||
if (tok_last_type(tok) != TOK_STRING)
|
||||
|
|
@ -1653,7 +1668,7 @@ int parser_t::parse_job(process_t *p,
|
|||
bool unskip = false; // Maybe we are an elseif inside an if block; if so we may want to evaluate this even if the if block is currently set to skip
|
||||
bool allow_bogus_command = false; // If we are an elseif that will not be executed, or an AND or OR that will have been short circuited, don't complain about non-existent commands
|
||||
|
||||
block_t *prev_block = current_block;
|
||||
const block_t *prev_block = current_block();
|
||||
scoped_push<int> tokenizer_pos_push(¤t_tokenizer_pos, tok_get_pos(tok));
|
||||
|
||||
while (args.empty())
|
||||
|
|
@ -1806,11 +1821,11 @@ int parser_t::parse_job(process_t *p,
|
|||
tok_next(tok);
|
||||
while_block_t *wb = NULL;
|
||||
|
||||
if ((current_block->type() != WHILE))
|
||||
if ((current_block()->type() != WHILE))
|
||||
{
|
||||
new_block = true;
|
||||
}
|
||||
else if ((wb = static_cast<while_block_t*>(current_block))->status == WHILE_TEST_AGAIN)
|
||||
else if ((wb = static_cast<while_block_t*>(current_block()))->status == WHILE_TEST_AGAIN)
|
||||
{
|
||||
wb->status = WHILE_TEST_FIRST;
|
||||
}
|
||||
|
|
@ -1848,9 +1863,9 @@ int parser_t::parse_job(process_t *p,
|
|||
const int else_pos = tok_get_pos(tok);
|
||||
/* See if we have any more arguments, that is, whether we're ELSE IF ... or just ELSE. */
|
||||
tok_next(tok);
|
||||
if (tok_last_type(tok) == TOK_STRING && current_block->type() == IF)
|
||||
if (tok_last_type(tok) == TOK_STRING && current_block()->type() == IF)
|
||||
{
|
||||
const if_block_t *ib = static_cast<const if_block_t *>(current_block);
|
||||
const if_block_t *ib = static_cast<const if_block_t *>(current_block());
|
||||
|
||||
/* If we've already encountered an else, complain */
|
||||
if (ib->else_evaluated)
|
||||
|
|
@ -1891,7 +1906,7 @@ int parser_t::parse_job(process_t *p,
|
|||
continue;
|
||||
}
|
||||
|
||||
if (use_function && (unskip || ! current_block->skip))
|
||||
if (use_function && (unskip || ! current_block()->skip))
|
||||
{
|
||||
bool nxt_forbidden=false;
|
||||
wcstring forbid;
|
||||
|
|
@ -1905,9 +1920,8 @@ int parser_t::parse_job(process_t *p,
|
|||
block scopes are pushed on function invocation changes,
|
||||
then this check will break.
|
||||
*/
|
||||
if ((current_block->type() == TOP) &&
|
||||
(current_block->outer) &&
|
||||
(current_block->outer->type() == FUNCTION_CALL))
|
||||
const block_t *current = this->block_at_index(0), *parent = this->block_at_index(1);
|
||||
if (current && parent && current->type() == TOP && parent->type() == FUNCTION_CALL)
|
||||
is_function_call = 1;
|
||||
|
||||
/*
|
||||
|
|
@ -1916,7 +1930,7 @@ int parser_t::parse_job(process_t *p,
|
|||
may not be called, since that would mean an infinite
|
||||
recursion.
|
||||
*/
|
||||
if (is_function_call && !current_block->had_command)
|
||||
if (is_function_call && !current->had_command)
|
||||
{
|
||||
forbid = forbidden_function.empty() ? wcstring(L"") : forbidden_function.back();
|
||||
if (forbid == nxt)
|
||||
|
|
@ -1963,7 +1977,7 @@ int parser_t::parse_job(process_t *p,
|
|||
If we are not executing the current block, allow
|
||||
non-existent commands.
|
||||
*/
|
||||
if (current_block->skip && ! unskip)
|
||||
if (current_block()->skip && ! unskip)
|
||||
allow_bogus_command = true; //note this may already be true for other reasons
|
||||
|
||||
if (allow_bogus_command)
|
||||
|
|
@ -2208,7 +2222,7 @@ int parser_t::parse_job(process_t *p,
|
|||
|
||||
tok_set_pos(tok, (int)end_pos);
|
||||
|
||||
while (prev_block != current_block)
|
||||
while (prev_block != this->current_block())
|
||||
{
|
||||
parser_t::pop_block();
|
||||
}
|
||||
|
|
@ -2237,7 +2251,7 @@ int parser_t::parse_job(process_t *p,
|
|||
{
|
||||
if (!is_new_block)
|
||||
{
|
||||
current_block->had_command = true;
|
||||
current_block()->had_command = true;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -2246,7 +2260,7 @@ int parser_t::parse_job(process_t *p,
|
|||
/*
|
||||
Make sure the block stack is consistent
|
||||
*/
|
||||
while (prev_block != current_block)
|
||||
while (prev_block != current_block())
|
||||
{
|
||||
parser_t::pop_block();
|
||||
}
|
||||
|
|
@ -2280,7 +2294,8 @@ void parser_t::skipped_exec(job_t * j)
|
|||
}
|
||||
else if (wcscmp(p->argv0(), L"end")==0)
|
||||
{
|
||||
if (!current_block->outer->skip)
|
||||
const block_t *parent = this->block_at_index(1);
|
||||
if (parent && ! parent->skip)
|
||||
{
|
||||
exec_job(*this, j);
|
||||
return;
|
||||
|
|
@ -2289,10 +2304,10 @@ void parser_t::skipped_exec(job_t * j)
|
|||
}
|
||||
else if (wcscmp(p->argv0(), L"else")==0)
|
||||
{
|
||||
if (current_block->type() == IF)
|
||||
if (current_block()->type() == IF)
|
||||
{
|
||||
/* Evaluate this ELSE if the IF expression failed, and so has every ELSEIF (if any) expression thus far */
|
||||
const if_block_t *ib = static_cast<const if_block_t*>(current_block);
|
||||
const if_block_t *ib = static_cast<const if_block_t*>(current_block());
|
||||
if (ib->if_expr_evaluated && ! ib->any_branch_taken)
|
||||
{
|
||||
exec_job(*this, j);
|
||||
|
|
@ -2302,7 +2317,7 @@ void parser_t::skipped_exec(job_t * j)
|
|||
}
|
||||
else if (wcscmp(p->argv0(), L"case")==0)
|
||||
{
|
||||
if (current_block->type() == SWITCH)
|
||||
if (current_block()->type() == SWITCH)
|
||||
{
|
||||
exec_job(*this, j);
|
||||
return;
|
||||
|
|
@ -2376,7 +2391,7 @@ void parser_t::eval_job(tokenizer_t *tok)
|
|||
|| is_event \
|
||||
|| (!get_is_interactive()));
|
||||
|
||||
current_block->job = j;
|
||||
current_block()->job = j;
|
||||
|
||||
if (get_is_interactive())
|
||||
{
|
||||
|
|
@ -2411,27 +2426,27 @@ void parser_t::eval_job(tokenizer_t *tok)
|
|||
{
|
||||
t2 = get_time();
|
||||
profile_item->cmd = j->command();
|
||||
profile_item->skipped=current_block->skip;
|
||||
profile_item->skipped=current_block()->skip;
|
||||
}
|
||||
|
||||
/* If we're an ELSEIF, then we may want to unskip, if we're skipping because of an IF */
|
||||
if (job_get_flag(j, JOB_ELSEIF))
|
||||
{
|
||||
bool skip_elseif = job_should_skip_elseif(j, current_block);
|
||||
bool skip_elseif = job_should_skip_elseif(j, current_block());
|
||||
|
||||
/* Record that we're entering an elseif */
|
||||
if (! skip_elseif)
|
||||
{
|
||||
/* We must be an IF block here */
|
||||
assert(current_block->type() == IF);
|
||||
static_cast<if_block_t *>(current_block)->is_elseif_entry = true;
|
||||
assert(current_block()->type() == IF);
|
||||
static_cast<if_block_t *>(current_block())->is_elseif_entry = true;
|
||||
}
|
||||
|
||||
/* Record that in the block too. This is similar to what builtin_else does. */
|
||||
current_block->skip = skip_elseif;
|
||||
current_block()->skip = skip_elseif;
|
||||
}
|
||||
|
||||
skip = skip || current_block->skip;
|
||||
skip = skip || current_block()->skip;
|
||||
skip = skip || job_get_flag(j, JOB_WILDCARD_ERROR);
|
||||
skip = skip || job_get_flag(j, JOB_SKIP);
|
||||
|
||||
|
|
@ -2460,9 +2475,9 @@ void parser_t::eval_job(tokenizer_t *tok)
|
|||
profile_item->exec=(int)(t3-t2);
|
||||
}
|
||||
|
||||
if (current_block->type() == WHILE)
|
||||
if (current_block()->type() == WHILE)
|
||||
{
|
||||
while_block_t *wb = static_cast<while_block_t *>(current_block);
|
||||
while_block_t *wb = static_cast<while_block_t *>(current_block());
|
||||
switch (wb->status)
|
||||
{
|
||||
case WHILE_TEST_FIRST:
|
||||
|
|
@ -2476,9 +2491,9 @@ void parser_t::eval_job(tokenizer_t *tok)
|
|||
}
|
||||
}
|
||||
|
||||
if (current_block->type() == IF)
|
||||
if (current_block()->type() == IF)
|
||||
{
|
||||
if_block_t *ib = static_cast<if_block_t *>(current_block);
|
||||
if_block_t *ib = static_cast<if_block_t *>(current_block());
|
||||
|
||||
if (ib->skip)
|
||||
{
|
||||
|
|
@ -2491,7 +2506,7 @@ void parser_t::eval_job(tokenizer_t *tok)
|
|||
ib->any_branch_taken = if_result;
|
||||
|
||||
/* Don't execute if the expression failed */
|
||||
current_block->skip = ! if_result;
|
||||
current_block()->skip = ! if_result;
|
||||
ib->if_expr_evaluated = true;
|
||||
}
|
||||
else if (ib->is_elseif_entry && ! ib->any_branch_taken)
|
||||
|
|
@ -2499,7 +2514,7 @@ void parser_t::eval_job(tokenizer_t *tok)
|
|||
/* Maybe mark an ELSEIF branch as taken */
|
||||
bool elseif_taken = (proc_get_last_status() == 0);
|
||||
ib->any_branch_taken = elseif_taken;
|
||||
current_block->skip = ! elseif_taken;
|
||||
current_block()->skip = ! elseif_taken;
|
||||
ib->is_elseif_entry = false;
|
||||
}
|
||||
}
|
||||
|
|
@ -2517,7 +2532,7 @@ void parser_t::eval_job(tokenizer_t *tok)
|
|||
|
||||
proc_set_last_status(1);
|
||||
}
|
||||
current_block->job = 0;
|
||||
current_block()->job = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -2579,7 +2594,7 @@ int parser_t::eval(const wcstring &cmdStr, const io_chain_t &io, enum block_type
|
|||
const wchar_t * const cmd = cmdStr.c_str();
|
||||
size_t forbid_count;
|
||||
int code;
|
||||
block_t *start_current_block = current_block;
|
||||
const block_t *start_current_block = current_block();
|
||||
|
||||
/* Record the current chain so we can put it back later */
|
||||
scoped_push<io_chain_t> block_io_push(&block_io, io);
|
||||
|
|
@ -2639,9 +2654,9 @@ int parser_t::eval(const wcstring &cmdStr, const io_chain_t &io, enum block_type
|
|||
|
||||
parser_t::pop_block();
|
||||
|
||||
while (start_current_block != current_block)
|
||||
while (start_current_block != current_block())
|
||||
{
|
||||
if (current_block == 0)
|
||||
if (current_block() == NULL)
|
||||
{
|
||||
debug(0,
|
||||
_(L"End of block mismatch. Program terminating."));
|
||||
|
|
@ -2656,7 +2671,7 @@ int parser_t::eval(const wcstring &cmdStr, const io_chain_t &io, enum block_type
|
|||
//debug( 2, L"Status %d\n", proc_get_last_status() );
|
||||
|
||||
debug(1,
|
||||
L"%ls", parser_t::get_block_desc(current_block->type()));
|
||||
L"%ls", parser_t::get_block_desc(current_block()->type()));
|
||||
debug(1,
|
||||
BLOCK_END_ERR_MSG);
|
||||
fwprintf(stderr, L"%ls", parser_t::current_line());
|
||||
|
|
@ -3734,8 +3749,7 @@ block_t::block_t(block_type_t t) :
|
|||
src_filename(),
|
||||
src_lineno(),
|
||||
wants_pop_env(false),
|
||||
event_blocks(),
|
||||
outer(NULL)
|
||||
event_blocks()
|
||||
{
|
||||
}
|
||||
|
||||
|
|
|
|||
28
parser.h
28
parser.h
|
|
@ -137,11 +137,6 @@ public:
|
|||
/** List of event blocks. */
|
||||
event_blockage_list_t event_blocks;
|
||||
|
||||
/**
|
||||
Next outer block
|
||||
*/
|
||||
block_t *outer;
|
||||
|
||||
/** Destructor */
|
||||
virtual ~block_t();
|
||||
};
|
||||
|
|
@ -301,7 +296,6 @@ class parser_t
|
|||
{
|
||||
private:
|
||||
enum parser_type_t parser_type;
|
||||
std::vector<block_t> blocks;
|
||||
|
||||
/** Whether or not we output errors */
|
||||
const bool show_errors;
|
||||
|
|
@ -332,6 +326,9 @@ private:
|
|||
|
||||
/** The jobs associated with this parser */
|
||||
job_list_t my_job_list;
|
||||
|
||||
/** The list of blocks, allocated with new. It's our responsibility to delete these */
|
||||
std::vector<block_t *> block_stack;
|
||||
|
||||
/**
|
||||
Keeps track of how many recursive eval calls have been made. Eval
|
||||
|
|
@ -377,9 +374,6 @@ public:
|
|||
/** Create a parser of the given type */
|
||||
parser_t(enum parser_type_t type, bool show_errors);
|
||||
|
||||
/** The current innermost block, allocated with new */
|
||||
block_t *current_block;
|
||||
|
||||
/** Global event blocks */
|
||||
event_blockage_list_t global_event_blocks;
|
||||
|
||||
|
|
@ -441,6 +435,20 @@ public:
|
|||
|
||||
/** Set the current position in the latest string of the tokenizer. */
|
||||
void set_pos(int p);
|
||||
|
||||
/** Returns the block at the given index. 0 corresponds to the innermost block. Returns NULL when idx is at or equal to the number of blocks. */
|
||||
const block_t *block_at_index(size_t idx) const;
|
||||
block_t *block_at_index(size_t idx);
|
||||
|
||||
/** Returns the current (innermost) block */
|
||||
const block_t *current_block() const;
|
||||
block_t *current_block();
|
||||
|
||||
/** Count of blocks */
|
||||
size_t block_count() const
|
||||
{
|
||||
return block_stack.size();
|
||||
}
|
||||
|
||||
/** Get the string currently parsed */
|
||||
const wchar_t *get_buffer() const;
|
||||
|
|
@ -533,7 +541,7 @@ public:
|
|||
/**
|
||||
Write a stack trace starting at the specified block to the specified wcstring
|
||||
*/
|
||||
void stack_trace(block_t *b, wcstring &buff);
|
||||
void stack_trace(size_t block_idx, wcstring &buff);
|
||||
|
||||
int get_block_type(const wchar_t *cmd) const;
|
||||
const wchar_t *get_block_command(int type) const;
|
||||
|
|
|
|||
|
|
@ -2823,14 +2823,11 @@ static void handle_end_loop()
|
|||
job_t *j;
|
||||
int stopped_jobs_count=0;
|
||||
int is_breakpoint=0;
|
||||
block_t *b;
|
||||
parser_t &parser = parser_t::principal_parser();
|
||||
const parser_t &parser = parser_t::principal_parser();
|
||||
|
||||
for (b = parser.current_block;
|
||||
b;
|
||||
b = b->outer)
|
||||
for (size_t i = 0; i < parser.block_count(); i++)
|
||||
{
|
||||
if (b->type() == BREAKPOINT)
|
||||
if (parser.block_at_index(i)->type() == BREAKPOINT)
|
||||
{
|
||||
is_breakpoint = 1;
|
||||
break;
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user