* cppfiles.c (_cpp_pop_file_buffer): Change return type to bool
and return true if _cpp_push_next_buffer pushed a new include
file.
* cpplib.c (_cpp_pop_buffer): Only call obstack_free if
_cpp_pop_file_buffer did not push a new file.
* cpphash.h (_cpp_pop_file_buffer): Update declaration.
From-SVN: r48507
* cpplib.c (struct pragma_entry): Store the name as a hashnode.
(lookup_pragma_entry, insert_pragma_entry, do_pragma,
cpp_register_pragma): Update accordingly.
From-SVN: r46255
* cppmain.c (scan_translation_unit): Don't worry about
putting a space after hashes.
* cpplib.c (directive_diagnostics): New.
(_cpp_handle_directive): Update to use directive_diagnostics.
(run_directive): Don't toggle prevent_expansion.
(do_line): Backup in case of the line extension.
* cpplib.h (cpp_lexer_pos): Remove.
* cppmacro.c (_cpp_create_definition): Precede a leading #
with whitespace.
* gcc.dg/cpp/line5.c: New testcase.
From-SVN: r45645
* c-parse.in (_yylex): Use _cpp_backup_tokens.
* cpphash.h (struct tokenrun): Add prev.
(struct lexer_state): Remove bol.
(struct cpp_reader): Remove old lookahead stuff, add lookaheads.
(_cpp_free_lookaheads, _cpp_release_lookahead, _cpp_push_token)
: Remove.
* cppinit.c (cpp_create_reader): Don't set bol.
(cpp_destroy): Don't free lookaheads.
* cpplex.c (lex_directive): Remove.
(next_tokenrun): Update.
(_cpp_lex_token): Clean up logic.
(lex_token): Update to return a pointer to lexed token, since it
can move to the start of the buffer. Simpify newline handling.
* cpplib.c (SEEN_EOL): Update.
(skip_rest_of_line): Remove lookahead stuff.
(end_directive): Line numbers are already incremented. Revert
to start of lexed token buffer if we can.
(_cpp_handle_directive, do_pragma, do_pragma_dependency,
parse_answer): Use _cpp_backup_tokens.
(run_directive, cpp_pop_buffer): Don't set bol, set saved_flags
instead. Don't check for EOL.
(do_include_common, do_line, do_pragma_system_header): Use
skip_rest_of_line.
* cpplib.h (BOL, _cpp_backup_tokens): New.
* cppmacro.c (save_lookahead_token, take_lookahead_token,
alloc_lookahead, free_lookahead, _cpp_free_lookaheads,
cpp_start_lookahead, cpp_stop_lookahead, _cpp_push_token): Remove.
(builtin_macro): Don't use cpp_get_line.
(cpp_get_line): Short term kludge.
(parse_arg): Handle directives in arguments here. Back up when
appropriate. Store EOF at end of argument list.
(funlike_invocation_p): Use _cpp_backup_tokens.
(push_arg_context): Account for EOF at end of list.
(cpp_get_token): Remove lookahead stuff. Update.
* gcc.dg/cpp/directiv.c: Update.
* gcc.dg/cpp/undef1.c: Update.
From-SVN: r45582
* cpphash.h (struct tokenrun): New.
(struct cpp_context): New member bol.
(struct cpp_reader): New members.
(_cpp_init_tokenrun): New.
* cppinit.c (cpp_create_reader): Set up the token runs.
* cpplex.c (lex_directive, lex_token, next_tokenrun): New.
(lex_token): New internalised version of _cpp_lex_token. Don't
handle directives or the multiple include opimisation here any
more. Simply lex a token.
* cpplib.c (run_directive): Clear bol.
(_cpp_pop_buffer): Set bol.
* cppmacro.c (funlike_invocation_p): Keep tokens whilst parsing
arguments.
From-SVN: r45534
* cppfiles.c (stack_include_file): line-map.c now handles include
depth.
(handle_missing_handler): Similarly.
(_cpp_execute_include): Similarly.
(_cpp_pop_file_buffer): Similarly.
* cpphash.h (struct cpp_reader): Remove system_include_depth,
buffer_stack_depth and include_depth.
* cpplib.c (do_include_common): line-map.c now handles include depth.
(cpp_push_buffer): Similarly.
(_cpp_pop_buffer): Similarly.
* cppmacro.c (builtin_macro): Update.
* line-map.c (init_line_maps): Set depth.
(add_line_map): Increment "used" earlier. Update and use the
include depth.
(trace_include): Use the include depth.
* line-map.h (struct line_maps): New member depth.
From-SVN: r45085
* cpphash.h (_cpp_push_next_buffer): New.
* cppinit.c (do_includes): Remove.
(push_include, free_chain, _cpp_push_next_buffer): New.
(cpp_start_read): Use them to rework command line option handling.
(cpp_handle_option): Combine handling of -include and -imacros.
* cpplex.c (_cpp_lex_token): Push a new -include buffer if
appropriate. Always insert missing \n at EOF.
* cpplib.c (start_directive): Get the directive position right.
* cppmain.c (cb_file_change): Always print the first line, unless
preprocessed.
From-SVN: r45070
* c-lex.c (map): Make const.
(cb_file_change): Update for callback passing a line map.
Don't assume we have a previous map. Remove sanity check
about popping too many files.
* cpperror.c (print_location): Make map const.
* cppfiles.c (stack_include_file): Update; line maps now hold sysp.
(cpp_make_system_header): Similarly.
(search_from): Similarly.
(_cpp_execute_include): Don't remember where we came from.
* cpphash.h (struct cpp_buffer): Remove return_to_line, sysp.
(struct cpp_reader): Make map const.
(CPP_IN_SYSTEM_HEADER, _cpp_do_file_change): Update.
* cpplib.c (do_line): Update; line maps now hold sysp.
(cpp_push_buffer): Similarly.
(_cpp_do_file_change): Similarly; callback with map instead.
(cpp_get_line_maps): Constify return value.
(_cpp_pop_buffer): Update.
* cpplib.h (struct cpp_file_change): Remove.
(struct cpp_callbacks): Update.
(cpp_get_line_maps): Constify return value.
* cppmacro.c (_cpp_create_definition): Update.
* cppmain.c (struct printer): Constify map.
(maybe_print_line): Similarly.
(print_line): Similarly. Deduce flags 1 and 2 here.
(cb_file_change): Update.
* line-map.c (free_line_maps): Warn regardless.
(add_line_map): Return pointer to const. When passed NULL to_file
with LC_LEAVE, use the obvious values for the return point so the
caller doesn't have to figure them out.
(lookup_line): Return pointer to const.
(print_containing_files): Take pointer to const.
* line-map.h (struct line_map): New members reason, sysp.
(add_line_map): Return pointer to const.
(lookup_line): Similarly.
(print_containing_files): Take pointer to const.
From-SVN: r44789
PR preprocessor/3081
* c-lex.c (map): New.
(cb_file_change): Update map and use it.
(cb_def_pragma, cb_define, cb_undef): Use map and line.
(c_lex): Update to use map.
* cpperror.c (print_location): Move to using logical line numbers.
* cppfiles.c (stack_include_file): Update for new _cpp_do_file_change.
(cpp_make_system_header): Similarly.
(_cpp_execute_include): Stop line numbering hacks. Store the
line we will return to.
* cpphash.h (CPP_BUF_LINE): Remove.
(struct cpp_buffer): Remove lineno and pseudo_newlines.
Add map and return_to_line.
(_cpp_do_file_change): Update.
* cppinit.c (cpp_start_read): Update line kludge.
* cpplex.c (handle_newline): Don't update lineno and pseudo_newlines.
(trigraph_ok): Use logical line numbers for diagnostics.
(skip_block_comment): Likewise.
(skip_whitespace): Likewise.
(skip_line_comment): Use pfile->line instead.
(_cpp_lex_token): Update to use logical line numbering exclusively.
Handle BOL locally. Accept new lines in directives, but keep
pfile->line decremented. Diagnostics use logical lines. Update
directive handling.
* cpplib.c (SEEN_EOL): New.
(skip_rest_of_line, check_eol): Use it.
(end_directive): Increase line number when accepting the newline
at the end of a directive.
(run_directive): Simplify.
(do_line): Bad LC_LEAVEs become LC_RENAMEs. Update.
(_cpp_do_file_change): Update to take buffer line number as an
argument, and store the current map in the cpp_reader. Remove
line number kludges.
(_cpp_do__Pragma): Restore output position after a _Pragma.
(cpp_push_buffer): Don't set output line or lineno.
(_cpp_pop_buffer): Transfer more info from a faked buffer.
Remove line kludge. Set output_line.
* cppmacro.c (builtin_macro): Update handling of __LINE__.
(parse_arg): Use logical lines.
(save_lookahead_token): Save EOFs too now.
* cppmain.c (struct printer): Fix comments.
(printer_init): Simplify, let caller do errors.
(scan_translation_unit, check_multiline_token, dump_macro): Update.
(maybe_print_line): Simplify.
(print_line): Don't print a linemarker if -P.
(cb_define, cb_undef, cb_def_pragma, cb_ident, cb_include): Update.
(cb_file_change): Simplify.
* line-map.h (LAST_SOURCE_LINE): Fix.
(CURRENT_LINE_MAP): New.
* gcc.dg/cpp/19951025-1.c: Revert.
* gcc.dg/cpp/directiv.c: We no longer process directives that
interrupt macro arguments.
From-SVN: r44650
* Makefile.in (CPPLIB_H): New, so that dependencies on cpplib.h
are also on line-map.h.
* cppfiles.c (stack_include_file): Update.
* cpphash.h (struct cpp_buffer): New member return_at_eof.
(_cpp_pop_buffer): New.
* cppinit.c (cpp_destroy, cpp_finish): Update.
(do_includes): Mark each buffer to return at EOF.
* cpplex.c (_cpp_lex_token): Pop buffers at EOF. Continue or
return as requested.
* cpplib.c (run_directive, do_line, cpp_push_buffer): Update.
(cpp_pop_buffer): Rename _cpp_pop_buffer. Stop skipping.
* cpplib.h (cpp_pop_buffer): Remove.
(cpp_scan_buffer_nooutput): Rename cpp_scan_nooutput.
* cppmacro.c (cpp_scan_buffer_nooutput): Similarly. No need to pop
buffers.
* cppmain.c (scan_buffer): Rename scan_translation_unit. No need
to pop buffers.
(do_preprocessing): Update.
* fix-header.c (read_scan_file): Update. No need to pop buffers.
* c-parse.in (_yylex): Similarly.
* scan-decls.c (scan_decls): Similarly.
* line-map.h: Update comments.
* cp/spew.c (read_token): No need to pop buffers.
* objc/Make-lang.in (objc-act.o): Update dependencies.
From-SVN: r44634
* line-map.c: New.
* line-map.h: New.
* Makefile.in (line-map.o): New.
(LIBCPP_OBJS, LIBCPP_DEPS): Update.
* c-lex.c (cb_file_change): Update for new cpp_file_change structure.
* cpperror.c (print_containing_files): Similarly.
(print_location): Update. Don't output a space before _Pragma.
* cppfiles.c (stack_include_file): Set to line 1 immediately.
(stack_include_filee, cpp_make_system_header): Update.
(_cpp_execute_include): Get logical line number right for calling
as-yet-unterminated #include.
* cpphash.h (struct cpp_reader): Add line_maps.
(_cpp_do_file_change): Update.
* cppinit.c (cpp_create_reader): Initialize line maps.
(cpp_destroy): Destroy line maps.
(cpp_start_read): Get logical line number right.
* cpplex.c (parse_string): Only warn once for multi-line strings.
Use boolean variable for null warning.
* cpplib.c (_cpp_handle_directive): End the directive if it isn't
already.
(do_include_common): End the directive early.
(do_line): Don't warn about out-of-range lines in preprocessed
source. Update. Remove unused variables.
(_cpp_do_file_change): Update for new line mapping.
(pragma_cb): New typedef.
(cpp_register_pragma): Stop looking ahead before calling the
handler. Clean up.
(do_pragma_system_header): End directive early.
(cpp_get_line_maps): New.
(cpp_pop_buffer): Fudge logical line. Update.
* cpplib.h: Include line-map.h
(enum cpp_fc_reason): Remove.
(struct cpp_file_change): Update.
(cpp_get_line_maps): New.
* cppmain.c (struct_printer): New member map.
(cb_file_change): Update for new mappings.
* fix-header.c (cb_file_change): Similarly.
testsuite:
* gcc.dg/cpp/19951025-1.c: Update.
From-SVN: r44584
* cppexp.c (parse_defined): Always record the macro name.
(lex): Don't worry about identifiers, or special-case
CPP_NOT here.
(_cpp_parse_expr): Figure out at the end of the routine
whether we saw a valid !defined() expression.
* cppfiles.c (stack_include_file): Update for mi_valid.
(_cpp_pop_file_buffer): Similarly.
* cpplex.c (_cpp_lex_token): Similarly.
* cpphash.h (enum mi_state, enum mi_ind, mi_state,
mi_if_not_defined, mi_lexed): Remove.
(mi_valid): New.
* cpplib.c (do_if): Simplify.
(do_endif, push_conditional, _cpp_handle_directive): Update
for renaming of mi_state to mi_valid.
* cpp.texi: Add index entries for digraphs, and add comment
that C++ refers to them as alternative tokens.
From-SVN: r44459
* c-common.h (enum rid): Add RID_FIRST_AT, RID_LAST_AT,
RID_LAST_PQ. Move RID_FIRST_PQ down with the other FIRST/LAST
enumerators.
(OBJC_IS_AT_KEYWORD, OBJC_IS_PQ_KEYWORD): New macros.
* c-parse.in (OBJC_STRING): Kill.
(objc_string): Decompose to [objc_string] '@' STRING.
(reswords): Take the leading '@' off all the Objective C keywords.
(objc_rid_sans_at): Kill.
(init_reswords): Don't initialize it.
(yylexname): Use OBJC_IS_AT_KEYWORD and OBJC_IS_PQ_KEYWORD.
(_yylex): Kill reconsider label. Look ahead one token after
an '@'; if we get an identifier, check whether it's an
Objective C @-keyword. If so, return the keyword. Otherwise,
put back the token and return the '@' as a terminal.
* cpplib.c (lex_macro_node): Remove unnecessary check for
leading '@' on identifier. Clarify control flow and commentary.
From-SVN: r43674
* cppinit.c (cpp_post_options): Shut off macro expansion if
-fpreprocessed.
* cpplib.c (_cpp_handle_directive): If -fpreprocessed, accept
IN_I directives only if the # is in column 1 and the directive
name begins in column 2.
* cppmain.c (scan_buffer): Insert a space between # and an
identifier, when that identifier is a directive name.
* tradcpp.c (struct file_buf): Add a pointer to the next entry
in the header search path.
(enum node_type): Add T_INCLUDE_NEXT.
(directive_table): Add entry for include_next.
(do_include_next): New function.
(process_include): New routine, broken out of do_include.
(finclude): Insert 'nhd' argument, to be copied into
next_header_dir of the new buffer.
(main): Adjust to match.
* gsyslimits.h, limity.h: Un-indent #include_next.
testsuite:
* gcc.dg/cpp/direct2.c: New test.
* gcc.dg/cpp/direct2s.c: New test.
* gcc.c-torture/execute/920730-1t.c: #undef __GNUC__ at head.
From-SVN: r41932
* cpperror.c (print_location): Don't special case <stdin>.
(_cpp_begin_message): Handle WARNING_SYSHDR the same as
WARNING, but we don't check if we're in system headers.
* cpplib.h (enum error_type): WARNING_SYSHDR: New.
* cpplib.c (do_warning): Warn in system headers.
From-SVN: r41186
* cpp.texi: Update documentation for -include and -imacros.
* cppfiles.c (struct include_file): Remove "defined" memeber.
(find_or_create_entry): Make a copy of the file name, and
simplify it.
(open_file): Update to ensure we use the simplified filename.
(stack_include_file): Don't set search_from.
(cpp_included): Don't simplify the path name here.
(find_include_file): New prototype. Call search_from to
get the start of the "" include chain. Don't simplify the
filenames here.
(_cpp_execute_include): New prototype. Move diagnostics to
do_include_common. Update.
(_cpp_pop_file_buffer): Don't set defined.
(search_from): New prototype. Use the preprocessor's cwd
for files included from the command line.
(read_name_map): Don't simplify the pathname here.
* cpphash.h (enum include_type): New.
(struct buffer): Delete search from. New search_cached.
(_cpp_execute_include): Update prototype.
* cppinit.c (do_includes): Use _cpp_execute_include.
* cpplib.c (do_include_common): New function.
(do_include, do_include_next, do_import): Use it.
From-SVN: r40486
* cppfiles.c (NO_INCLUDE_PATH): New macro.
(find_include_file): Decide here which part of the include
chain to start the search. Complain about an empty include
chain in all cases apart from an abolsute file name.
(_cpp_execute_include): Don't choose the search chain here.
Don't call handle_missing_include in the case of an empty
include chain.
(_cpp_compare_file_date): Don't choose the search chain here.
* cpplib.c (do_include_next): Move the in-main-file diagnostic
here from _cpp_execute_include. Behave like #include if
we're in the main file.
From-SVN: r40445
* cpplib.c (_cpp_init_stacks): Cast enum for comparison.
* cppexp.c (lex): Cast enums for comparison.
* cppinit.c (parse_option): Cast enum for comparison.
* cpplex.c (cpp_spell_token): Cast enums to int for minus.
(cpp_output_token): Likewise.
(cpp_can_paste): Cast enums for comparsion and plus/minus.
(cpp_avoid_paste): Cast enums for minus and comparison.
From-SVN: r40174
* cppinit.c (builtin_array): Update.
(init_builtins): Flag builtins to warn if redefined or
undefined. Define __GXX_WEAK as a normal macro.
* cpplib.c (do_undef): Warn if flagged NODE_WARN.
* cpplib.h (NODE_WARN): New flag.
* cppmacro.c (builtin_macro): Remove handling of __GXX_WEAK__.
Handle __STDC__ as a builtin only on Solaris.
(warn_of_redefinition): Renamed from check_macro_definition.
Reverse sense of test. Always warn if NODE_WARN.
(_cpp_create_definition): Use warn_of_redefinition. Flag
any macro beginning with "__STDC_" to require a mandatory
warning if redefined or undefined.
From-SVN: r40053
