mirror of
https://sourceware.org/git/binutils-gdb.git
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6d3d12ebef
This commit includes string.h in common-defs.h and removes all other inclusions. gdb/ 2014-08-07 Gary Benson <gbenson@redhat.com> * common/common-defs.h: Include string.h. * aarch64-tdep.c: Do not include string.h. * ada-exp.y: Likewise. * ada-lang.c: Likewise. * ada-lex.l: Likewise. * ada-typeprint.c: Likewise. * ada-valprint.c: Likewise. * aix-thread.c: Likewise. * alpha-linux-tdep.c: Likewise. * alpha-mdebug-tdep.c: Likewise. * alpha-nat.c: Likewise. * alpha-osf1-tdep.c: Likewise. * alpha-tdep.c: Likewise. * alphanbsd-tdep.c: Likewise. * amd64-dicos-tdep.c: Likewise. * amd64-linux-tdep.c: Likewise. * amd64-nat.c: Likewise. * amd64-sol2-tdep.c: Likewise. * amd64fbsd-tdep.c: Likewise. * amd64obsd-tdep.c: Likewise. * arch-utils.c: Likewise. * arm-linux-nat.c: Likewise. * arm-linux-tdep.c: Likewise. * arm-tdep.c: Likewise. * arm-wince-tdep.c: Likewise. * armbsd-tdep.c: Likewise. * armnbsd-nat.c: Likewise. * armnbsd-tdep.c: Likewise. * armobsd-tdep.c: Likewise. * avr-tdep.c: Likewise. * ax-gdb.c: Likewise. * ax-general.c: Likewise. * bcache.c: Likewise. * bfin-tdep.c: Likewise. * breakpoint.c: Likewise. * build-id.c: Likewise. * buildsym.c: Likewise. * c-exp.y: Likewise. * c-lang.c: Likewise. * c-typeprint.c: Likewise. * c-valprint.c: Likewise. * charset.c: Likewise. * cli-out.c: Likewise. * cli/cli-cmds.c: Likewise. * cli/cli-decode.c: Likewise. * cli/cli-dump.c: Likewise. * cli/cli-interp.c: Likewise. * cli/cli-logging.c: Likewise. * cli/cli-script.c: Likewise. * cli/cli-setshow.c: Likewise. * cli/cli-utils.c: Likewise. * coffread.c: Likewise. * common/agent.c: Likewise. * common/buffer.c: Likewise. * common/buffer.h: Likewise. * common/common-utils.c: Likewise. * common/filestuff.c: Likewise. * common/filestuff.c: Likewise. * common/format.c: Likewise. * common/print-utils.c: Likewise. * common/rsp-low.c: Likewise. * common/signals.c: Likewise. * common/vec.h: Likewise. * common/xml-utils.c: Likewise. * core-regset.c: Likewise. * corefile.c: Likewise. * corelow.c: Likewise. * cp-abi.c: Likewise. * cp-name-parser.y: Likewise. * cp-support.c: Likewise. * cp-valprint.c: Likewise. * cris-tdep.c: Likewise. * d-exp.y: Likewise. * darwin-nat.c: Likewise. * dbxread.c: Likewise. * dcache.c: Likewise. * demangle.c: Likewise. * dicos-tdep.c: Likewise. * disasm.c: Likewise. * doublest.c: Likewise. * dsrec.c: Likewise. * dummy-frame.c: Likewise. * dwarf2-frame.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * elfread.c: Likewise. * environ.c: Likewise. * eval.c: Likewise. * event-loop.c: Likewise. * exceptions.c: Likewise. * exec.c: Likewise. * expprint.c: Likewise. * f-exp.y: Likewise. * f-lang.c: Likewise. * f-typeprint.c: Likewise. * f-valprint.c: Likewise. * fbsd-nat.c: Likewise. * findcmd.c: Likewise. * findvar.c: Likewise. * fork-child.c: Likewise. * frame.c: Likewise. * frv-linux-tdep.c: Likewise. * frv-tdep.c: Likewise. * gdb.c: Likewise. * gdb_bfd.c: Likewise. * gdbarch.c: Likewise. * gdbarch.sh: Likewise. * gdbtypes.c: Likewise. * gnu-nat.c: Likewise. * gnu-v2-abi.c: Likewise. * gnu-v3-abi.c: Likewise. * go-exp.y: Likewise. * go-lang.c: Likewise. * go32-nat.c: Likewise. * guile/guile.c: Likewise. * guile/scm-auto-load.c: Likewise. * hppa-hpux-tdep.c: Likewise. * hppa-linux-nat.c: Likewise. * hppanbsd-tdep.c: Likewise. * hppaobsd-tdep.c: Likewise. * i386-cygwin-tdep.c: Likewise. * i386-dicos-tdep.c: Likewise. * i386-linux-tdep.c: Likewise. * i386-nto-tdep.c: Likewise. * i386-sol2-tdep.c: Likewise. * i386-tdep.c: Likewise. * i386bsd-tdep.c: Likewise. * i386gnu-nat.c: Likewise. * i386nbsd-tdep.c: Likewise. * i386obsd-tdep.c: Likewise. * i387-tdep.c: Likewise. * ia64-libunwind-tdep.c: Likewise. * ia64-linux-nat.c: Likewise. * inf-child.c: Likewise. * inf-ptrace.c: Likewise. * inf-ttrace.c: Likewise. * infcall.c: Likewise. * infcmd.c: Likewise. * inflow.c: Likewise. * infrun.c: Likewise. * interps.c: Likewise. * iq2000-tdep.c: Likewise. * irix5-nat.c: Likewise. * jv-exp.y: Likewise. * jv-lang.c: Likewise. * jv-typeprint.c: Likewise. * jv-valprint.c: Likewise. * language.c: Likewise. * linux-fork.c: Likewise. * linux-nat.c: Likewise. * lm32-tdep.c: Likewise. * m2-exp.y: Likewise. * m2-typeprint.c: Likewise. * m32c-tdep.c: Likewise. * m32r-linux-nat.c: Likewise. * m32r-linux-tdep.c: Likewise. * m32r-rom.c: Likewise. * m32r-tdep.c: Likewise. * m68hc11-tdep.c: Likewise. * m68k-tdep.c: Likewise. * m68kbsd-tdep.c: Likewise. * m68klinux-nat.c: Likewise. * m68klinux-tdep.c: Likewise. * m88k-tdep.c: Likewise. * machoread.c: Likewise. * macrocmd.c: Likewise. * main.c: Likewise. * mdebugread.c: Likewise. * mem-break.c: Likewise. * memattr.c: Likewise. * memory-map.c: Likewise. * mep-tdep.c: Likewise. * mi/mi-cmd-break.c: Likewise. * mi/mi-cmd-disas.c: Likewise. * mi/mi-cmd-env.c: Likewise. * mi/mi-cmd-stack.c: Likewise. * mi/mi-cmd-var.c: Likewise. * mi/mi-cmds.c: Likewise. * mi/mi-console.c: Likewise. * mi/mi-getopt.c: Likewise. * mi/mi-interp.c: Likewise. * mi/mi-main.c: Likewise. * mi/mi-parse.c: Likewise. * microblaze-rom.c: Likewise. * microblaze-tdep.c: Likewise. * mingw-hdep.c: Likewise. * minidebug.c: Likewise. * minsyms.c: Likewise. * mips-irix-tdep.c: Likewise. * mips-linux-tdep.c: Likewise. * mips-tdep.c: Likewise. * mips64obsd-tdep.c: Likewise. * mipsnbsd-tdep.c: Likewise. * mipsread.c: Likewise. * mn10300-linux-tdep.c: Likewise. * mn10300-tdep.c: Likewise. * monitor.c: Likewise. * moxie-tdep.c: Likewise. * mt-tdep.c: Likewise. * nat/linux-btrace.c: Likewise. * nat/linux-osdata.c: Likewise. * nat/linux-procfs.c: Likewise. * nat/linux-ptrace.c: Likewise. * nat/linux-waitpid.c: Likewise. * nbsd-tdep.c: Likewise. * nios2-linux-tdep.c: Likewise. * nto-procfs.c: Likewise. * nto-tdep.c: Likewise. * objc-lang.c: Likewise. * objfiles.c: Likewise. * opencl-lang.c: Likewise. * osabi.c: Likewise. * osdata.c: Likewise. * p-exp.y: Likewise. * p-lang.c: Likewise. * p-typeprint.c: Likewise. * parse.c: Likewise. * posix-hdep.c: Likewise. * ppc-linux-nat.c: Likewise. * ppc-sysv-tdep.c: Likewise. * ppcfbsd-tdep.c: Likewise. * ppcnbsd-tdep.c: Likewise. * ppcobsd-tdep.c: Likewise. * printcmd.c: Likewise. * procfs.c: Likewise. * prologue-value.c: Likewise. * python/py-auto-load.c: Likewise. * python/py-gdb-readline.c: Likewise. * ravenscar-thread.c: Likewise. * regcache.c: Likewise. * registry.c: Likewise. * remote-fileio.c: Likewise. * remote-m32r-sdi.c: Likewise. * remote-mips.c: Likewise. * remote-notif.c: Likewise. * remote-sim.c: Likewise. * remote.c: Likewise. * reverse.c: Likewise. * rs6000-aix-tdep.c: Likewise. * ser-base.c: Likewise. * ser-go32.c: Likewise. * ser-mingw.c: Likewise. * ser-pipe.c: Likewise. * ser-tcp.c: Likewise. * ser-unix.c: Likewise. * serial.c: Likewise. * sh-tdep.c: Likewise. * sh64-tdep.c: Likewise. * shnbsd-tdep.c: Likewise. * skip.c: Likewise. * sol-thread.c: Likewise. * solib-dsbt.c: Likewise. * solib-frv.c: Likewise. * solib-osf.c: Likewise. * solib-som.c: Likewise. * solib-spu.c: Likewise. * solib-target.c: Likewise. * solib.c: Likewise. * somread.c: Likewise. * source.c: Likewise. * sparc-nat.c: Likewise. * sparc-sol2-tdep.c: Likewise. * sparc-tdep.c: Likewise. * sparc64-tdep.c: Likewise. * sparc64fbsd-tdep.c: Likewise. * sparc64nbsd-tdep.c: Likewise. * sparcnbsd-tdep.c: Likewise. * spu-linux-nat.c: Likewise. * spu-multiarch.c: Likewise. * spu-tdep.c: Likewise. * stabsread.c: Likewise. * stack.c: Likewise. * std-regs.c: Likewise. * symfile.c: Likewise. * symmisc.c: Likewise. * symtab.c: Likewise. * target.c: Likewise. * thread.c: Likewise. * tilegx-linux-nat.c: Likewise. * tilegx-tdep.c: Likewise. * top.c: Likewise. * tracepoint.c: Likewise. * tui/tui-command.c: Likewise. * tui/tui-data.c: Likewise. * tui/tui-disasm.c: Likewise. * tui/tui-file.c: Likewise. * tui/tui-layout.c: Likewise. * tui/tui-out.c: Likewise. * tui/tui-regs.c: Likewise. * tui/tui-source.c: Likewise. * tui/tui-stack.c: Likewise. * tui/tui-win.c: Likewise. * tui/tui-windata.c: Likewise. * tui/tui-winsource.c: Likewise. * typeprint.c: Likewise. * ui-file.c: Likewise. * ui-out.c: Likewise. * user-regs.c: Likewise. * utils.c: Likewise. * v850-tdep.c: Likewise. * valarith.c: Likewise. * valops.c: Likewise. * valprint.c: Likewise. * value.c: Likewise. * varobj.c: Likewise. * vax-tdep.c: Likewise. * vaxnbsd-tdep.c: Likewise. * vaxobsd-tdep.c: Likewise. * windows-nat.c: Likewise. * xcoffread.c: Likewise. * xml-support.c: Likewise. * xstormy16-tdep.c: Likewise. * xtensa-linux-nat.c: Likewise. gdb/gdbserver/ 2014-08-07 Gary Benson <gbenson@redhat.com> * server.h: Do not include string.h. * event-loop.c: Likewise. * linux-low.c: Likewise. * regcache.c: Likewise. * remote-utils.c: Likewise. * spu-low.c: Likewise. * utils.c: Likewise.
1492 lines
37 KiB
Plaintext
1492 lines
37 KiB
Plaintext
/* YACC parser for Java expressions, for GDB.
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Copyright (C) 1997-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Parse a Java expression from text in a string,
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and return the result as a struct expression pointer.
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That structure contains arithmetic operations in reverse polish,
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with constants represented by operations that are followed by special data.
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See expression.h for the details of the format.
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What is important here is that it can be built up sequentially
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during the process of parsing; the lower levels of the tree always
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come first in the result. Well, almost always; see ArrayAccess.
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Note that malloc's and realloc's in this file are transformed to
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xmalloc and xrealloc respectively by the same sed command in the
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makefile that remaps any other malloc/realloc inserted by the parser
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generator. Doing this with #defines and trying to control the interaction
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with include files (<malloc.h> and <stdlib.h> for example) just became
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too messy, particularly when such includes can be inserted at random
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times by the parser generator. */
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%{
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#include "defs.h"
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#include <ctype.h>
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#include "expression.h"
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#include "value.h"
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#include "parser-defs.h"
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#include "language.h"
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#include "jv-lang.h"
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#include "bfd.h" /* Required by objfiles.h. */
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#include "symfile.h" /* Required by objfiles.h. */
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#include "objfiles.h" /* For have_full_symbols and have_partial_symbols */
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#include "block.h"
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#include "completer.h"
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#define parse_type(ps) builtin_type (parse_gdbarch (ps))
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#define parse_java_type(ps) builtin_java_type (parse_gdbarch (ps))
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/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
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as well as gratuitiously global symbol names, so we can have multiple
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yacc generated parsers in gdb. Note that these are only the variables
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produced by yacc. If other parser generators (bison, byacc, etc) produce
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additional global names that conflict at link time, then those parser
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generators need to be fixed instead of adding those names to this list. */
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#define yymaxdepth java_maxdepth
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#define yyparse java_parse_internal
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#define yylex java_lex
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#define yyerror java_error
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#define yylval java_lval
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#define yychar java_char
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#define yydebug java_debug
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#define yypact java_pact
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#define yyr1 java_r1
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#define yyr2 java_r2
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#define yydef java_def
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#define yychk java_chk
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#define yypgo java_pgo
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#define yyact java_act
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#define yyexca java_exca
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#define yyerrflag java_errflag
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#define yynerrs java_nerrs
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#define yyps java_ps
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#define yypv java_pv
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#define yys java_s
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#define yy_yys java_yys
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#define yystate java_state
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#define yytmp java_tmp
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#define yyv java_v
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#define yy_yyv java_yyv
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#define yyval java_val
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#define yylloc java_lloc
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#define yyreds java_reds /* With YYDEBUG defined */
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#define yytoks java_toks /* With YYDEBUG defined */
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#define yyname java_name /* With YYDEBUG defined */
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#define yyrule java_rule /* With YYDEBUG defined */
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#define yylhs java_yylhs
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#define yylen java_yylen
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#define yydefred java_yydefred
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#define yydgoto java_yydgoto
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#define yysindex java_yysindex
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#define yyrindex java_yyrindex
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#define yygindex java_yygindex
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#define yytable java_yytable
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#define yycheck java_yycheck
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#define yyss java_yyss
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#define yysslim java_yysslim
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#define yyssp java_yyssp
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#define yystacksize java_yystacksize
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#define yyvs java_yyvs
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#define yyvsp java_yyvsp
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#ifndef YYDEBUG
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#define YYDEBUG 1 /* Default to yydebug support */
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#endif
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#define YYFPRINTF parser_fprintf
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/* The state of the parser, used internally when we are parsing the
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expression. */
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static struct parser_state *pstate = NULL;
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int yyparse (void);
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static int yylex (void);
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void yyerror (char *);
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static struct type *java_type_from_name (struct stoken);
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static void push_expression_name (struct parser_state *, struct stoken);
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static void push_fieldnames (struct parser_state *, struct stoken);
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static struct expression *copy_exp (struct expression *, int);
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static void insert_exp (struct parser_state *, int, struct expression *);
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%}
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/* Although the yacc "value" of an expression is not used,
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since the result is stored in the structure being created,
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other node types do have values. */
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%union
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{
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LONGEST lval;
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struct {
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LONGEST val;
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struct type *type;
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} typed_val_int;
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struct {
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DOUBLEST dval;
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struct type *type;
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} typed_val_float;
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struct symbol *sym;
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struct type *tval;
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struct stoken sval;
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struct ttype tsym;
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struct symtoken ssym;
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struct block *bval;
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enum exp_opcode opcode;
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struct internalvar *ivar;
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int *ivec;
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}
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%{
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/* YYSTYPE gets defined by %union */
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static int parse_number (struct parser_state *, const char *, int,
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int, YYSTYPE *);
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%}
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%type <lval> rcurly Dims Dims_opt
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%type <tval> ClassOrInterfaceType ClassType /* ReferenceType Type ArrayType */
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%type <tval> IntegralType FloatingPointType NumericType PrimitiveType ArrayType PrimitiveOrArrayType
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%token <typed_val_int> INTEGER_LITERAL
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%token <typed_val_float> FLOATING_POINT_LITERAL
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%token <sval> IDENTIFIER
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%token <sval> STRING_LITERAL
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%token <lval> BOOLEAN_LITERAL
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%token <tsym> TYPENAME
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%type <sval> Name SimpleName QualifiedName ForcedName
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/* A NAME_OR_INT is a symbol which is not known in the symbol table,
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but which would parse as a valid number in the current input radix.
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E.g. "c" when input_radix==16. Depending on the parse, it will be
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turned into a name or into a number. */
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%token <sval> NAME_OR_INT
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%token ERROR
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/* Special type cases, put in to allow the parser to distinguish different
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legal basetypes. */
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%token LONG SHORT BYTE INT CHAR BOOLEAN DOUBLE FLOAT
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%token VARIABLE
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%token <opcode> ASSIGN_MODIFY
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%token SUPER NEW
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%left ','
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%right '=' ASSIGN_MODIFY
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%right '?'
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%left OROR
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%left ANDAND
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%left '|'
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%left '^'
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%left '&'
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%left EQUAL NOTEQUAL
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%left '<' '>' LEQ GEQ
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%left LSH RSH
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%left '+' '-'
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%left '*' '/' '%'
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%right INCREMENT DECREMENT
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%right '.' '[' '('
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%%
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start : exp1
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| type_exp
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;
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type_exp: PrimitiveOrArrayType
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{
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write_exp_elt_opcode (pstate, OP_TYPE);
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write_exp_elt_type (pstate, $1);
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write_exp_elt_opcode (pstate, OP_TYPE);
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}
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;
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PrimitiveOrArrayType:
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PrimitiveType
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| ArrayType
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;
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StringLiteral:
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STRING_LITERAL
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{
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write_exp_elt_opcode (pstate, OP_STRING);
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write_exp_string (pstate, $1);
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write_exp_elt_opcode (pstate, OP_STRING);
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}
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;
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Literal:
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INTEGER_LITERAL
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{ write_exp_elt_opcode (pstate, OP_LONG);
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write_exp_elt_type (pstate, $1.type);
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write_exp_elt_longcst (pstate, (LONGEST)($1.val));
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write_exp_elt_opcode (pstate, OP_LONG); }
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| NAME_OR_INT
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{ YYSTYPE val;
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parse_number (pstate, $1.ptr, $1.length, 0, &val);
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write_exp_elt_opcode (pstate, OP_LONG);
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write_exp_elt_type (pstate, val.typed_val_int.type);
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write_exp_elt_longcst (pstate,
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(LONGEST) val.typed_val_int.val);
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write_exp_elt_opcode (pstate, OP_LONG);
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}
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| FLOATING_POINT_LITERAL
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{ write_exp_elt_opcode (pstate, OP_DOUBLE);
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write_exp_elt_type (pstate, $1.type);
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write_exp_elt_dblcst (pstate, $1.dval);
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write_exp_elt_opcode (pstate, OP_DOUBLE); }
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| BOOLEAN_LITERAL
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{ write_exp_elt_opcode (pstate, OP_LONG);
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write_exp_elt_type (pstate,
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parse_java_type (pstate)->builtin_boolean);
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write_exp_elt_longcst (pstate, (LONGEST)$1);
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write_exp_elt_opcode (pstate, OP_LONG); }
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| StringLiteral
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;
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/* UNUSED:
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Type:
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PrimitiveType
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| ReferenceType
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;
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*/
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PrimitiveType:
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NumericType
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| BOOLEAN
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{ $$ = parse_java_type (pstate)->builtin_boolean; }
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;
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NumericType:
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IntegralType
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| FloatingPointType
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;
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IntegralType:
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BYTE
|
||
{ $$ = parse_java_type (pstate)->builtin_byte; }
|
||
| SHORT
|
||
{ $$ = parse_java_type (pstate)->builtin_short; }
|
||
| INT
|
||
{ $$ = parse_java_type (pstate)->builtin_int; }
|
||
| LONG
|
||
{ $$ = parse_java_type (pstate)->builtin_long; }
|
||
| CHAR
|
||
{ $$ = parse_java_type (pstate)->builtin_char; }
|
||
;
|
||
|
||
FloatingPointType:
|
||
FLOAT
|
||
{ $$ = parse_java_type (pstate)->builtin_float; }
|
||
| DOUBLE
|
||
{ $$ = parse_java_type (pstate)->builtin_double; }
|
||
;
|
||
|
||
/* UNUSED:
|
||
ReferenceType:
|
||
ClassOrInterfaceType
|
||
| ArrayType
|
||
;
|
||
*/
|
||
|
||
ClassOrInterfaceType:
|
||
Name
|
||
{ $$ = java_type_from_name ($1); }
|
||
;
|
||
|
||
ClassType:
|
||
ClassOrInterfaceType
|
||
;
|
||
|
||
ArrayType:
|
||
PrimitiveType Dims
|
||
{ $$ = java_array_type ($1, $2); }
|
||
| Name Dims
|
||
{ $$ = java_array_type (java_type_from_name ($1), $2); }
|
||
;
|
||
|
||
Name:
|
||
IDENTIFIER
|
||
| QualifiedName
|
||
;
|
||
|
||
ForcedName:
|
||
SimpleName
|
||
| QualifiedName
|
||
;
|
||
|
||
SimpleName:
|
||
IDENTIFIER
|
||
| NAME_OR_INT
|
||
;
|
||
|
||
QualifiedName:
|
||
Name '.' SimpleName
|
||
{ $$.length = $1.length + $3.length + 1;
|
||
if ($1.ptr + $1.length + 1 == $3.ptr
|
||
&& $1.ptr[$1.length] == '.')
|
||
$$.ptr = $1.ptr; /* Optimization. */
|
||
else
|
||
{
|
||
char *buf;
|
||
|
||
buf = malloc ($$.length + 1);
|
||
make_cleanup (free, buf);
|
||
sprintf (buf, "%.*s.%.*s",
|
||
$1.length, $1.ptr, $3.length, $3.ptr);
|
||
$$.ptr = buf;
|
||
} }
|
||
;
|
||
|
||
/*
|
||
type_exp: type
|
||
{ write_exp_elt_opcode(OP_TYPE);
|
||
write_exp_elt_type($1);
|
||
write_exp_elt_opcode(OP_TYPE);}
|
||
;
|
||
*/
|
||
|
||
/* Expressions, including the comma operator. */
|
||
exp1 : Expression
|
||
| exp1 ',' Expression
|
||
{ write_exp_elt_opcode (pstate, BINOP_COMMA); }
|
||
;
|
||
|
||
Primary:
|
||
PrimaryNoNewArray
|
||
| ArrayCreationExpression
|
||
;
|
||
|
||
PrimaryNoNewArray:
|
||
Literal
|
||
| '(' Expression ')'
|
||
| ClassInstanceCreationExpression
|
||
| FieldAccess
|
||
| MethodInvocation
|
||
| ArrayAccess
|
||
| lcurly ArgumentList rcurly
|
||
{ write_exp_elt_opcode (pstate, OP_ARRAY);
|
||
write_exp_elt_longcst (pstate, (LONGEST) 0);
|
||
write_exp_elt_longcst (pstate, (LONGEST) $3);
|
||
write_exp_elt_opcode (pstate, OP_ARRAY); }
|
||
;
|
||
|
||
lcurly:
|
||
'{'
|
||
{ start_arglist (); }
|
||
;
|
||
|
||
rcurly:
|
||
'}'
|
||
{ $$ = end_arglist () - 1; }
|
||
;
|
||
|
||
ClassInstanceCreationExpression:
|
||
NEW ClassType '(' ArgumentList_opt ')'
|
||
{ internal_error (__FILE__, __LINE__,
|
||
_("FIXME - ClassInstanceCreationExpression")); }
|
||
;
|
||
|
||
ArgumentList:
|
||
Expression
|
||
{ arglist_len = 1; }
|
||
| ArgumentList ',' Expression
|
||
{ arglist_len++; }
|
||
;
|
||
|
||
ArgumentList_opt:
|
||
/* EMPTY */
|
||
{ arglist_len = 0; }
|
||
| ArgumentList
|
||
;
|
||
|
||
ArrayCreationExpression:
|
||
NEW PrimitiveType DimExprs Dims_opt
|
||
{ internal_error (__FILE__, __LINE__,
|
||
_("FIXME - ArrayCreationExpression")); }
|
||
| NEW ClassOrInterfaceType DimExprs Dims_opt
|
||
{ internal_error (__FILE__, __LINE__,
|
||
_("FIXME - ArrayCreationExpression")); }
|
||
;
|
||
|
||
DimExprs:
|
||
DimExpr
|
||
| DimExprs DimExpr
|
||
;
|
||
|
||
DimExpr:
|
||
'[' Expression ']'
|
||
;
|
||
|
||
Dims:
|
||
'[' ']'
|
||
{ $$ = 1; }
|
||
| Dims '[' ']'
|
||
{ $$ = $1 + 1; }
|
||
;
|
||
|
||
Dims_opt:
|
||
Dims
|
||
| /* EMPTY */
|
||
{ $$ = 0; }
|
||
;
|
||
|
||
FieldAccess:
|
||
Primary '.' SimpleName
|
||
{ push_fieldnames (pstate, $3); }
|
||
| VARIABLE '.' SimpleName
|
||
{ push_fieldnames (pstate, $3); }
|
||
/*| SUPER '.' SimpleName { FIXME } */
|
||
;
|
||
|
||
FuncStart:
|
||
Name '('
|
||
{ push_expression_name (pstate, $1); }
|
||
;
|
||
|
||
MethodInvocation:
|
||
FuncStart
|
||
{ start_arglist(); }
|
||
ArgumentList_opt ')'
|
||
{ write_exp_elt_opcode (pstate, OP_FUNCALL);
|
||
write_exp_elt_longcst (pstate, (LONGEST) end_arglist ());
|
||
write_exp_elt_opcode (pstate, OP_FUNCALL); }
|
||
| Primary '.' SimpleName '(' ArgumentList_opt ')'
|
||
{ error (_("Form of method invocation not implemented")); }
|
||
| SUPER '.' SimpleName '(' ArgumentList_opt ')'
|
||
{ error (_("Form of method invocation not implemented")); }
|
||
;
|
||
|
||
ArrayAccess:
|
||
Name '[' Expression ']'
|
||
{
|
||
/* Emit code for the Name now, then exchange it in the
|
||
expout array with the Expression's code. We could
|
||
introduce a OP_SWAP code or a reversed version of
|
||
BINOP_SUBSCRIPT, but that makes the rest of GDB pay
|
||
for our parsing kludges. */
|
||
struct expression *name_expr;
|
||
|
||
push_expression_name (pstate, $1);
|
||
name_expr = copy_exp (pstate->expout, pstate->expout_ptr);
|
||
pstate->expout_ptr -= name_expr->nelts;
|
||
insert_exp (pstate,
|
||
pstate->expout_ptr
|
||
- length_of_subexp (pstate->expout,
|
||
pstate->expout_ptr),
|
||
name_expr);
|
||
free (name_expr);
|
||
write_exp_elt_opcode (pstate, BINOP_SUBSCRIPT);
|
||
}
|
||
| VARIABLE '[' Expression ']'
|
||
{ write_exp_elt_opcode (pstate, BINOP_SUBSCRIPT); }
|
||
| PrimaryNoNewArray '[' Expression ']'
|
||
{ write_exp_elt_opcode (pstate, BINOP_SUBSCRIPT); }
|
||
;
|
||
|
||
PostfixExpression:
|
||
Primary
|
||
| Name
|
||
{ push_expression_name (pstate, $1); }
|
||
| VARIABLE
|
||
/* Already written by write_dollar_variable. */
|
||
| PostIncrementExpression
|
||
| PostDecrementExpression
|
||
;
|
||
|
||
PostIncrementExpression:
|
||
PostfixExpression INCREMENT
|
||
{ write_exp_elt_opcode (pstate, UNOP_POSTINCREMENT); }
|
||
;
|
||
|
||
PostDecrementExpression:
|
||
PostfixExpression DECREMENT
|
||
{ write_exp_elt_opcode (pstate, UNOP_POSTDECREMENT); }
|
||
;
|
||
|
||
UnaryExpression:
|
||
PreIncrementExpression
|
||
| PreDecrementExpression
|
||
| '+' UnaryExpression
|
||
| '-' UnaryExpression
|
||
{ write_exp_elt_opcode (pstate, UNOP_NEG); }
|
||
| '*' UnaryExpression
|
||
{ write_exp_elt_opcode (pstate,
|
||
UNOP_IND); } /*FIXME not in Java */
|
||
| UnaryExpressionNotPlusMinus
|
||
;
|
||
|
||
PreIncrementExpression:
|
||
INCREMENT UnaryExpression
|
||
{ write_exp_elt_opcode (pstate, UNOP_PREINCREMENT); }
|
||
;
|
||
|
||
PreDecrementExpression:
|
||
DECREMENT UnaryExpression
|
||
{ write_exp_elt_opcode (pstate, UNOP_PREDECREMENT); }
|
||
;
|
||
|
||
UnaryExpressionNotPlusMinus:
|
||
PostfixExpression
|
||
| '~' UnaryExpression
|
||
{ write_exp_elt_opcode (pstate, UNOP_COMPLEMENT); }
|
||
| '!' UnaryExpression
|
||
{ write_exp_elt_opcode (pstate, UNOP_LOGICAL_NOT); }
|
||
| CastExpression
|
||
;
|
||
|
||
CastExpression:
|
||
'(' PrimitiveType Dims_opt ')' UnaryExpression
|
||
{ write_exp_elt_opcode (pstate, UNOP_CAST);
|
||
write_exp_elt_type (pstate, java_array_type ($2, $3));
|
||
write_exp_elt_opcode (pstate, UNOP_CAST); }
|
||
| '(' Expression ')' UnaryExpressionNotPlusMinus
|
||
{
|
||
int last_exp_size = length_of_subexp (pstate->expout,
|
||
pstate->expout_ptr);
|
||
struct type *type;
|
||
int i;
|
||
int base = pstate->expout_ptr - last_exp_size - 3;
|
||
|
||
if (base < 0
|
||
|| pstate->expout->elts[base+2].opcode != OP_TYPE)
|
||
error (_("Invalid cast expression"));
|
||
type = pstate->expout->elts[base+1].type;
|
||
/* Remove the 'Expression' and slide the
|
||
UnaryExpressionNotPlusMinus down to replace it. */
|
||
for (i = 0; i < last_exp_size; i++)
|
||
pstate->expout->elts[base + i]
|
||
= pstate->expout->elts[base + i + 3];
|
||
pstate->expout_ptr -= 3;
|
||
if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
|
||
type = lookup_pointer_type (type);
|
||
write_exp_elt_opcode (pstate, UNOP_CAST);
|
||
write_exp_elt_type (pstate, type);
|
||
write_exp_elt_opcode (pstate, UNOP_CAST);
|
||
}
|
||
| '(' Name Dims ')' UnaryExpressionNotPlusMinus
|
||
{ write_exp_elt_opcode (pstate, UNOP_CAST);
|
||
write_exp_elt_type (pstate,
|
||
java_array_type (java_type_from_name
|
||
($2), $3));
|
||
write_exp_elt_opcode (pstate, UNOP_CAST); }
|
||
;
|
||
|
||
|
||
MultiplicativeExpression:
|
||
UnaryExpression
|
||
| MultiplicativeExpression '*' UnaryExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_MUL); }
|
||
| MultiplicativeExpression '/' UnaryExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_DIV); }
|
||
| MultiplicativeExpression '%' UnaryExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_REM); }
|
||
;
|
||
|
||
AdditiveExpression:
|
||
MultiplicativeExpression
|
||
| AdditiveExpression '+' MultiplicativeExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_ADD); }
|
||
| AdditiveExpression '-' MultiplicativeExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_SUB); }
|
||
;
|
||
|
||
ShiftExpression:
|
||
AdditiveExpression
|
||
| ShiftExpression LSH AdditiveExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_LSH); }
|
||
| ShiftExpression RSH AdditiveExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_RSH); }
|
||
/* | ShiftExpression >>> AdditiveExpression { FIXME } */
|
||
;
|
||
|
||
RelationalExpression:
|
||
ShiftExpression
|
||
| RelationalExpression '<' ShiftExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_LESS); }
|
||
| RelationalExpression '>' ShiftExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_GTR); }
|
||
| RelationalExpression LEQ ShiftExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_LEQ); }
|
||
| RelationalExpression GEQ ShiftExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_GEQ); }
|
||
/* | RelationalExpresion INSTANCEOF ReferenceType { FIXME } */
|
||
;
|
||
|
||
EqualityExpression:
|
||
RelationalExpression
|
||
| EqualityExpression EQUAL RelationalExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_EQUAL); }
|
||
| EqualityExpression NOTEQUAL RelationalExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_NOTEQUAL); }
|
||
;
|
||
|
||
AndExpression:
|
||
EqualityExpression
|
||
| AndExpression '&' EqualityExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_BITWISE_AND); }
|
||
;
|
||
|
||
ExclusiveOrExpression:
|
||
AndExpression
|
||
| ExclusiveOrExpression '^' AndExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_BITWISE_XOR); }
|
||
;
|
||
InclusiveOrExpression:
|
||
ExclusiveOrExpression
|
||
| InclusiveOrExpression '|' ExclusiveOrExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_BITWISE_IOR); }
|
||
;
|
||
|
||
ConditionalAndExpression:
|
||
InclusiveOrExpression
|
||
| ConditionalAndExpression ANDAND InclusiveOrExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_LOGICAL_AND); }
|
||
;
|
||
|
||
ConditionalOrExpression:
|
||
ConditionalAndExpression
|
||
| ConditionalOrExpression OROR ConditionalAndExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_LOGICAL_OR); }
|
||
;
|
||
|
||
ConditionalExpression:
|
||
ConditionalOrExpression
|
||
| ConditionalOrExpression '?' Expression ':' ConditionalExpression
|
||
{ write_exp_elt_opcode (pstate, TERNOP_COND); }
|
||
;
|
||
|
||
AssignmentExpression:
|
||
ConditionalExpression
|
||
| Assignment
|
||
;
|
||
|
||
Assignment:
|
||
LeftHandSide '=' ConditionalExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_ASSIGN); }
|
||
| LeftHandSide ASSIGN_MODIFY ConditionalExpression
|
||
{ write_exp_elt_opcode (pstate, BINOP_ASSIGN_MODIFY);
|
||
write_exp_elt_opcode (pstate, $2);
|
||
write_exp_elt_opcode (pstate, BINOP_ASSIGN_MODIFY); }
|
||
;
|
||
|
||
LeftHandSide:
|
||
ForcedName
|
||
{ push_expression_name (pstate, $1); }
|
||
| VARIABLE
|
||
/* Already written by write_dollar_variable. */
|
||
| FieldAccess
|
||
| ArrayAccess
|
||
;
|
||
|
||
|
||
Expression:
|
||
AssignmentExpression
|
||
;
|
||
|
||
%%
|
||
/* Take care of parsing a number (anything that starts with a digit).
|
||
Set yylval and return the token type; update lexptr.
|
||
LEN is the number of characters in it. */
|
||
|
||
/*** Needs some error checking for the float case ***/
|
||
|
||
static int
|
||
parse_number (struct parser_state *par_state,
|
||
const char *p, int len, int parsed_float, YYSTYPE *putithere)
|
||
{
|
||
ULONGEST n = 0;
|
||
ULONGEST limit, limit_div_base;
|
||
|
||
int c;
|
||
int base = input_radix;
|
||
|
||
struct type *type;
|
||
|
||
if (parsed_float)
|
||
{
|
||
const char *suffix;
|
||
int suffix_len;
|
||
|
||
if (! parse_float (p, len, &putithere->typed_val_float.dval, &suffix))
|
||
return ERROR;
|
||
|
||
suffix_len = p + len - suffix;
|
||
|
||
if (suffix_len == 0)
|
||
putithere->typed_val_float.type
|
||
= parse_type (par_state)->builtin_double;
|
||
else if (suffix_len == 1)
|
||
{
|
||
/* See if it has `f' or `d' suffix (float or double). */
|
||
if (tolower (*suffix) == 'f')
|
||
putithere->typed_val_float.type =
|
||
parse_type (par_state)->builtin_float;
|
||
else if (tolower (*suffix) == 'd')
|
||
putithere->typed_val_float.type =
|
||
parse_type (par_state)->builtin_double;
|
||
else
|
||
return ERROR;
|
||
}
|
||
else
|
||
return ERROR;
|
||
|
||
return FLOATING_POINT_LITERAL;
|
||
}
|
||
|
||
/* Handle base-switching prefixes 0x, 0t, 0d, 0 */
|
||
if (p[0] == '0')
|
||
switch (p[1])
|
||
{
|
||
case 'x':
|
||
case 'X':
|
||
if (len >= 3)
|
||
{
|
||
p += 2;
|
||
base = 16;
|
||
len -= 2;
|
||
}
|
||
break;
|
||
|
||
case 't':
|
||
case 'T':
|
||
case 'd':
|
||
case 'D':
|
||
if (len >= 3)
|
||
{
|
||
p += 2;
|
||
base = 10;
|
||
len -= 2;
|
||
}
|
||
break;
|
||
|
||
default:
|
||
base = 8;
|
||
break;
|
||
}
|
||
|
||
c = p[len-1];
|
||
/* A paranoid calculation of (1<<64)-1. */
|
||
limit = (ULONGEST)0xffffffff;
|
||
limit = ((limit << 16) << 16) | limit;
|
||
if (c == 'l' || c == 'L')
|
||
{
|
||
type = parse_java_type (par_state)->builtin_long;
|
||
len--;
|
||
}
|
||
else
|
||
{
|
||
type = parse_java_type (par_state)->builtin_int;
|
||
}
|
||
limit_div_base = limit / (ULONGEST) base;
|
||
|
||
while (--len >= 0)
|
||
{
|
||
c = *p++;
|
||
if (c >= '0' && c <= '9')
|
||
c -= '0';
|
||
else if (c >= 'A' && c <= 'Z')
|
||
c -= 'A' - 10;
|
||
else if (c >= 'a' && c <= 'z')
|
||
c -= 'a' - 10;
|
||
else
|
||
return ERROR; /* Char not a digit */
|
||
if (c >= base)
|
||
return ERROR;
|
||
if (n > limit_div_base
|
||
|| (n *= base) > limit - c)
|
||
error (_("Numeric constant too large"));
|
||
n += c;
|
||
}
|
||
|
||
/* If the type is bigger than a 32-bit signed integer can be, implicitly
|
||
promote to long. Java does not do this, so mark it as
|
||
parse_type (par_state)->builtin_uint64 rather than
|
||
parse_java_type (par_state)->builtin_long.
|
||
0x80000000 will become -0x80000000 instead of 0x80000000L, because we
|
||
don't know the sign at this point. */
|
||
if (type == parse_java_type (par_state)->builtin_int
|
||
&& n > (ULONGEST)0x80000000)
|
||
type = parse_type (par_state)->builtin_uint64;
|
||
|
||
putithere->typed_val_int.val = n;
|
||
putithere->typed_val_int.type = type;
|
||
|
||
return INTEGER_LITERAL;
|
||
}
|
||
|
||
struct token
|
||
{
|
||
char *operator;
|
||
int token;
|
||
enum exp_opcode opcode;
|
||
};
|
||
|
||
static const struct token tokentab3[] =
|
||
{
|
||
{">>=", ASSIGN_MODIFY, BINOP_RSH},
|
||
{"<<=", ASSIGN_MODIFY, BINOP_LSH}
|
||
};
|
||
|
||
static const struct token tokentab2[] =
|
||
{
|
||
{"+=", ASSIGN_MODIFY, BINOP_ADD},
|
||
{"-=", ASSIGN_MODIFY, BINOP_SUB},
|
||
{"*=", ASSIGN_MODIFY, BINOP_MUL},
|
||
{"/=", ASSIGN_MODIFY, BINOP_DIV},
|
||
{"%=", ASSIGN_MODIFY, BINOP_REM},
|
||
{"|=", ASSIGN_MODIFY, BINOP_BITWISE_IOR},
|
||
{"&=", ASSIGN_MODIFY, BINOP_BITWISE_AND},
|
||
{"^=", ASSIGN_MODIFY, BINOP_BITWISE_XOR},
|
||
{"++", INCREMENT, BINOP_END},
|
||
{"--", DECREMENT, BINOP_END},
|
||
{"&&", ANDAND, BINOP_END},
|
||
{"||", OROR, BINOP_END},
|
||
{"<<", LSH, BINOP_END},
|
||
{">>", RSH, BINOP_END},
|
||
{"==", EQUAL, BINOP_END},
|
||
{"!=", NOTEQUAL, BINOP_END},
|
||
{"<=", LEQ, BINOP_END},
|
||
{">=", GEQ, BINOP_END}
|
||
};
|
||
|
||
/* Read one token, getting characters through lexptr. */
|
||
|
||
static int
|
||
yylex (void)
|
||
{
|
||
int c;
|
||
int namelen;
|
||
unsigned int i;
|
||
const char *tokstart;
|
||
const char *tokptr;
|
||
int tempbufindex;
|
||
static char *tempbuf;
|
||
static int tempbufsize;
|
||
|
||
retry:
|
||
|
||
prev_lexptr = lexptr;
|
||
|
||
tokstart = lexptr;
|
||
/* See if it is a special token of length 3. */
|
||
for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++)
|
||
if (strncmp (tokstart, tokentab3[i].operator, 3) == 0)
|
||
{
|
||
lexptr += 3;
|
||
yylval.opcode = tokentab3[i].opcode;
|
||
return tokentab3[i].token;
|
||
}
|
||
|
||
/* See if it is a special token of length 2. */
|
||
for (i = 0; i < sizeof tokentab2 / sizeof tokentab2[0]; i++)
|
||
if (strncmp (tokstart, tokentab2[i].operator, 2) == 0)
|
||
{
|
||
lexptr += 2;
|
||
yylval.opcode = tokentab2[i].opcode;
|
||
return tokentab2[i].token;
|
||
}
|
||
|
||
switch (c = *tokstart)
|
||
{
|
||
case 0:
|
||
return 0;
|
||
|
||
case ' ':
|
||
case '\t':
|
||
case '\n':
|
||
lexptr++;
|
||
goto retry;
|
||
|
||
case '\'':
|
||
/* We either have a character constant ('0' or '\177' for example)
|
||
or we have a quoted symbol reference ('foo(int,int)' in C++
|
||
for example). */
|
||
lexptr++;
|
||
c = *lexptr++;
|
||
if (c == '\\')
|
||
c = parse_escape (parse_gdbarch (pstate), &lexptr);
|
||
else if (c == '\'')
|
||
error (_("Empty character constant"));
|
||
|
||
yylval.typed_val_int.val = c;
|
||
yylval.typed_val_int.type = parse_java_type (pstate)->builtin_char;
|
||
|
||
c = *lexptr++;
|
||
if (c != '\'')
|
||
{
|
||
namelen = skip_quoted (tokstart) - tokstart;
|
||
if (namelen > 2)
|
||
{
|
||
lexptr = tokstart + namelen;
|
||
if (lexptr[-1] != '\'')
|
||
error (_("Unmatched single quote"));
|
||
namelen -= 2;
|
||
tokstart++;
|
||
goto tryname;
|
||
}
|
||
error (_("Invalid character constant"));
|
||
}
|
||
return INTEGER_LITERAL;
|
||
|
||
case '(':
|
||
paren_depth++;
|
||
lexptr++;
|
||
return c;
|
||
|
||
case ')':
|
||
if (paren_depth == 0)
|
||
return 0;
|
||
paren_depth--;
|
||
lexptr++;
|
||
return c;
|
||
|
||
case ',':
|
||
if (comma_terminates && paren_depth == 0)
|
||
return 0;
|
||
lexptr++;
|
||
return c;
|
||
|
||
case '.':
|
||
/* Might be a floating point number. */
|
||
if (lexptr[1] < '0' || lexptr[1] > '9')
|
||
goto symbol; /* Nope, must be a symbol. */
|
||
/* FALL THRU into number case. */
|
||
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
case '3':
|
||
case '4':
|
||
case '5':
|
||
case '6':
|
||
case '7':
|
||
case '8':
|
||
case '9':
|
||
{
|
||
/* It's a number. */
|
||
int got_dot = 0, got_e = 0, toktype;
|
||
const char *p = tokstart;
|
||
int hex = input_radix > 10;
|
||
|
||
if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
|
||
{
|
||
p += 2;
|
||
hex = 1;
|
||
}
|
||
else if (c == '0' && (p[1]=='t' || p[1]=='T' || p[1]=='d' || p[1]=='D'))
|
||
{
|
||
p += 2;
|
||
hex = 0;
|
||
}
|
||
|
||
for (;; ++p)
|
||
{
|
||
/* This test includes !hex because 'e' is a valid hex digit
|
||
and thus does not indicate a floating point number when
|
||
the radix is hex. */
|
||
if (!hex && !got_e && (*p == 'e' || *p == 'E'))
|
||
got_dot = got_e = 1;
|
||
/* This test does not include !hex, because a '.' always indicates
|
||
a decimal floating point number regardless of the radix. */
|
||
else if (!got_dot && *p == '.')
|
||
got_dot = 1;
|
||
else if (got_e && (p[-1] == 'e' || p[-1] == 'E')
|
||
&& (*p == '-' || *p == '+'))
|
||
/* This is the sign of the exponent, not the end of the
|
||
number. */
|
||
continue;
|
||
/* We will take any letters or digits. parse_number will
|
||
complain if past the radix, or if L or U are not final. */
|
||
else if ((*p < '0' || *p > '9')
|
||
&& ((*p < 'a' || *p > 'z')
|
||
&& (*p < 'A' || *p > 'Z')))
|
||
break;
|
||
}
|
||
toktype = parse_number (pstate, tokstart, p - tokstart,
|
||
got_dot|got_e, &yylval);
|
||
if (toktype == ERROR)
|
||
{
|
||
char *err_copy = (char *) alloca (p - tokstart + 1);
|
||
|
||
memcpy (err_copy, tokstart, p - tokstart);
|
||
err_copy[p - tokstart] = 0;
|
||
error (_("Invalid number \"%s\""), err_copy);
|
||
}
|
||
lexptr = p;
|
||
return toktype;
|
||
}
|
||
|
||
case '+':
|
||
case '-':
|
||
case '*':
|
||
case '/':
|
||
case '%':
|
||
case '|':
|
||
case '&':
|
||
case '^':
|
||
case '~':
|
||
case '!':
|
||
case '<':
|
||
case '>':
|
||
case '[':
|
||
case ']':
|
||
case '?':
|
||
case ':':
|
||
case '=':
|
||
case '{':
|
||
case '}':
|
||
symbol:
|
||
lexptr++;
|
||
return c;
|
||
|
||
case '"':
|
||
|
||
/* Build the gdb internal form of the input string in tempbuf,
|
||
translating any standard C escape forms seen. Note that the
|
||
buffer is null byte terminated *only* for the convenience of
|
||
debugging gdb itself and printing the buffer contents when
|
||
the buffer contains no embedded nulls. Gdb does not depend
|
||
upon the buffer being null byte terminated, it uses the length
|
||
string instead. This allows gdb to handle C strings (as well
|
||
as strings in other languages) with embedded null bytes */
|
||
|
||
tokptr = ++tokstart;
|
||
tempbufindex = 0;
|
||
|
||
do {
|
||
/* Grow the static temp buffer if necessary, including allocating
|
||
the first one on demand. */
|
||
if (tempbufindex + 1 >= tempbufsize)
|
||
{
|
||
tempbuf = (char *) realloc (tempbuf, tempbufsize += 64);
|
||
}
|
||
switch (*tokptr)
|
||
{
|
||
case '\0':
|
||
case '"':
|
||
/* Do nothing, loop will terminate. */
|
||
break;
|
||
case '\\':
|
||
tokptr++;
|
||
c = parse_escape (parse_gdbarch (pstate), &tokptr);
|
||
if (c == -1)
|
||
{
|
||
continue;
|
||
}
|
||
tempbuf[tempbufindex++] = c;
|
||
break;
|
||
default:
|
||
tempbuf[tempbufindex++] = *tokptr++;
|
||
break;
|
||
}
|
||
} while ((*tokptr != '"') && (*tokptr != '\0'));
|
||
if (*tokptr++ != '"')
|
||
{
|
||
error (_("Unterminated string in expression"));
|
||
}
|
||
tempbuf[tempbufindex] = '\0'; /* See note above */
|
||
yylval.sval.ptr = tempbuf;
|
||
yylval.sval.length = tempbufindex;
|
||
lexptr = tokptr;
|
||
return (STRING_LITERAL);
|
||
}
|
||
|
||
if (!(c == '_' || c == '$'
|
||
|| (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')))
|
||
/* We must have come across a bad character (e.g. ';'). */
|
||
error (_("Invalid character '%c' in expression"), c);
|
||
|
||
/* It's a name. See how long it is. */
|
||
namelen = 0;
|
||
for (c = tokstart[namelen];
|
||
(c == '_'
|
||
|| c == '$'
|
||
|| (c >= '0' && c <= '9')
|
||
|| (c >= 'a' && c <= 'z')
|
||
|| (c >= 'A' && c <= 'Z')
|
||
|| c == '<');
|
||
)
|
||
{
|
||
if (c == '<')
|
||
{
|
||
int i = namelen;
|
||
while (tokstart[++i] && tokstart[i] != '>');
|
||
if (tokstart[i] == '>')
|
||
namelen = i;
|
||
}
|
||
c = tokstart[++namelen];
|
||
}
|
||
|
||
/* The token "if" terminates the expression and is NOT
|
||
removed from the input stream. */
|
||
if (namelen == 2 && tokstart[0] == 'i' && tokstart[1] == 'f')
|
||
{
|
||
return 0;
|
||
}
|
||
|
||
lexptr += namelen;
|
||
|
||
tryname:
|
||
|
||
/* Catch specific keywords. Should be done with a data structure. */
|
||
switch (namelen)
|
||
{
|
||
case 7:
|
||
if (strncmp (tokstart, "boolean", 7) == 0)
|
||
return BOOLEAN;
|
||
break;
|
||
case 6:
|
||
if (strncmp (tokstart, "double", 6) == 0)
|
||
return DOUBLE;
|
||
break;
|
||
case 5:
|
||
if (strncmp (tokstart, "short", 5) == 0)
|
||
return SHORT;
|
||
if (strncmp (tokstart, "false", 5) == 0)
|
||
{
|
||
yylval.lval = 0;
|
||
return BOOLEAN_LITERAL;
|
||
}
|
||
if (strncmp (tokstart, "super", 5) == 0)
|
||
return SUPER;
|
||
if (strncmp (tokstart, "float", 5) == 0)
|
||
return FLOAT;
|
||
break;
|
||
case 4:
|
||
if (strncmp (tokstart, "long", 4) == 0)
|
||
return LONG;
|
||
if (strncmp (tokstart, "byte", 4) == 0)
|
||
return BYTE;
|
||
if (strncmp (tokstart, "char", 4) == 0)
|
||
return CHAR;
|
||
if (strncmp (tokstart, "true", 4) == 0)
|
||
{
|
||
yylval.lval = 1;
|
||
return BOOLEAN_LITERAL;
|
||
}
|
||
break;
|
||
case 3:
|
||
if (strncmp (tokstart, "int", 3) == 0)
|
||
return INT;
|
||
if (strncmp (tokstart, "new", 3) == 0)
|
||
return NEW;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
yylval.sval.ptr = tokstart;
|
||
yylval.sval.length = namelen;
|
||
|
||
if (*tokstart == '$')
|
||
{
|
||
write_dollar_variable (pstate, yylval.sval);
|
||
return VARIABLE;
|
||
}
|
||
|
||
/* Input names that aren't symbols but ARE valid hex numbers,
|
||
when the input radix permits them, can be names or numbers
|
||
depending on the parse. Note we support radixes > 16 here. */
|
||
if (((tokstart[0] >= 'a' && tokstart[0] < 'a' + input_radix - 10) ||
|
||
(tokstart[0] >= 'A' && tokstart[0] < 'A' + input_radix - 10)))
|
||
{
|
||
YYSTYPE newlval; /* Its value is ignored. */
|
||
int hextype = parse_number (pstate, tokstart, namelen, 0, &newlval);
|
||
if (hextype == INTEGER_LITERAL)
|
||
return NAME_OR_INT;
|
||
}
|
||
return IDENTIFIER;
|
||
}
|
||
|
||
int
|
||
java_parse (struct parser_state *par_state)
|
||
{
|
||
int result;
|
||
struct cleanup *c = make_cleanup_clear_parser_state (&pstate);
|
||
|
||
/* Setting up the parser state. */
|
||
gdb_assert (par_state != NULL);
|
||
pstate = par_state;
|
||
|
||
result = yyparse ();
|
||
do_cleanups (c);
|
||
|
||
return result;
|
||
}
|
||
|
||
void
|
||
yyerror (char *msg)
|
||
{
|
||
if (prev_lexptr)
|
||
lexptr = prev_lexptr;
|
||
|
||
if (msg)
|
||
error (_("%s: near `%s'"), msg, lexptr);
|
||
else
|
||
error (_("error in expression, near `%s'"), lexptr);
|
||
}
|
||
|
||
static struct type *
|
||
java_type_from_name (struct stoken name)
|
||
{
|
||
char *tmp = copy_name (name);
|
||
struct type *typ = java_lookup_class (tmp);
|
||
if (typ == NULL || TYPE_CODE (typ) != TYPE_CODE_STRUCT)
|
||
error (_("No class named `%s'"), tmp);
|
||
return typ;
|
||
}
|
||
|
||
/* If NAME is a valid variable name in this scope, push it and return 1.
|
||
Otherwise, return 0. */
|
||
|
||
static int
|
||
push_variable (struct parser_state *par_state, struct stoken name)
|
||
{
|
||
char *tmp = copy_name (name);
|
||
struct field_of_this_result is_a_field_of_this;
|
||
struct symbol *sym;
|
||
|
||
sym = lookup_symbol (tmp, expression_context_block, VAR_DOMAIN,
|
||
&is_a_field_of_this);
|
||
if (sym && SYMBOL_CLASS (sym) != LOC_TYPEDEF)
|
||
{
|
||
if (symbol_read_needs_frame (sym))
|
||
{
|
||
if (innermost_block == 0 ||
|
||
contained_in (block_found, innermost_block))
|
||
innermost_block = block_found;
|
||
}
|
||
|
||
write_exp_elt_opcode (par_state, OP_VAR_VALUE);
|
||
/* We want to use the selected frame, not another more inner frame
|
||
which happens to be in the same block. */
|
||
write_exp_elt_block (par_state, NULL);
|
||
write_exp_elt_sym (par_state, sym);
|
||
write_exp_elt_opcode (par_state, OP_VAR_VALUE);
|
||
return 1;
|
||
}
|
||
if (is_a_field_of_this.type != NULL)
|
||
{
|
||
/* it hangs off of `this'. Must not inadvertently convert from a
|
||
method call to data ref. */
|
||
if (innermost_block == 0 ||
|
||
contained_in (block_found, innermost_block))
|
||
innermost_block = block_found;
|
||
write_exp_elt_opcode (par_state, OP_THIS);
|
||
write_exp_elt_opcode (par_state, OP_THIS);
|
||
write_exp_elt_opcode (par_state, STRUCTOP_PTR);
|
||
write_exp_string (par_state, name);
|
||
write_exp_elt_opcode (par_state, STRUCTOP_PTR);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
/* Assuming a reference expression has been pushed, emit the
|
||
STRUCTOP_PTR ops to access the field named NAME. If NAME is a
|
||
qualified name (has '.'), generate a field access for each part. */
|
||
|
||
static void
|
||
push_fieldnames (struct parser_state *par_state, struct stoken name)
|
||
{
|
||
int i;
|
||
struct stoken token;
|
||
token.ptr = name.ptr;
|
||
for (i = 0; ; i++)
|
||
{
|
||
if (i == name.length || name.ptr[i] == '.')
|
||
{
|
||
/* token.ptr is start of current field name. */
|
||
token.length = &name.ptr[i] - token.ptr;
|
||
write_exp_elt_opcode (par_state, STRUCTOP_PTR);
|
||
write_exp_string (par_state, token);
|
||
write_exp_elt_opcode (par_state, STRUCTOP_PTR);
|
||
token.ptr += token.length + 1;
|
||
}
|
||
if (i >= name.length)
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Helper routine for push_expression_name.
|
||
Handle a qualified name, where DOT_INDEX is the index of the first '.' */
|
||
|
||
static void
|
||
push_qualified_expression_name (struct parser_state *par_state,
|
||
struct stoken name, int dot_index)
|
||
{
|
||
struct stoken token;
|
||
char *tmp;
|
||
struct type *typ;
|
||
|
||
token.ptr = name.ptr;
|
||
token.length = dot_index;
|
||
|
||
if (push_variable (par_state, token))
|
||
{
|
||
token.ptr = name.ptr + dot_index + 1;
|
||
token.length = name.length - dot_index - 1;
|
||
push_fieldnames (par_state, token);
|
||
return;
|
||
}
|
||
|
||
token.ptr = name.ptr;
|
||
for (;;)
|
||
{
|
||
token.length = dot_index;
|
||
tmp = copy_name (token);
|
||
typ = java_lookup_class (tmp);
|
||
if (typ != NULL)
|
||
{
|
||
if (dot_index == name.length)
|
||
{
|
||
write_exp_elt_opcode (par_state, OP_TYPE);
|
||
write_exp_elt_type (par_state, typ);
|
||
write_exp_elt_opcode (par_state, OP_TYPE);
|
||
return;
|
||
}
|
||
dot_index++; /* Skip '.' */
|
||
name.ptr += dot_index;
|
||
name.length -= dot_index;
|
||
dot_index = 0;
|
||
while (dot_index < name.length && name.ptr[dot_index] != '.')
|
||
dot_index++;
|
||
token.ptr = name.ptr;
|
||
token.length = dot_index;
|
||
write_exp_elt_opcode (par_state, OP_SCOPE);
|
||
write_exp_elt_type (par_state, typ);
|
||
write_exp_string (par_state, token);
|
||
write_exp_elt_opcode (par_state, OP_SCOPE);
|
||
if (dot_index < name.length)
|
||
{
|
||
dot_index++;
|
||
name.ptr += dot_index;
|
||
name.length -= dot_index;
|
||
push_fieldnames (par_state, name);
|
||
}
|
||
return;
|
||
}
|
||
else if (dot_index >= name.length)
|
||
break;
|
||
dot_index++; /* Skip '.' */
|
||
while (dot_index < name.length && name.ptr[dot_index] != '.')
|
||
dot_index++;
|
||
}
|
||
error (_("unknown type `%.*s'"), name.length, name.ptr);
|
||
}
|
||
|
||
/* Handle Name in an expression (or LHS).
|
||
Handle VAR, TYPE, TYPE.FIELD1....FIELDN and VAR.FIELD1....FIELDN. */
|
||
|
||
static void
|
||
push_expression_name (struct parser_state *par_state, struct stoken name)
|
||
{
|
||
char *tmp;
|
||
struct type *typ;
|
||
int i;
|
||
|
||
for (i = 0; i < name.length; i++)
|
||
{
|
||
if (name.ptr[i] == '.')
|
||
{
|
||
/* It's a Qualified Expression Name. */
|
||
push_qualified_expression_name (par_state, name, i);
|
||
return;
|
||
}
|
||
}
|
||
|
||
/* It's a Simple Expression Name. */
|
||
|
||
if (push_variable (par_state, name))
|
||
return;
|
||
tmp = copy_name (name);
|
||
typ = java_lookup_class (tmp);
|
||
if (typ != NULL)
|
||
{
|
||
write_exp_elt_opcode (par_state, OP_TYPE);
|
||
write_exp_elt_type (par_state, typ);
|
||
write_exp_elt_opcode (par_state, OP_TYPE);
|
||
}
|
||
else
|
||
{
|
||
struct bound_minimal_symbol msymbol;
|
||
|
||
msymbol = lookup_bound_minimal_symbol (tmp);
|
||
if (msymbol.minsym != NULL)
|
||
write_exp_msymbol (par_state, msymbol);
|
||
else if (!have_full_symbols () && !have_partial_symbols ())
|
||
error (_("No symbol table is loaded. Use the \"file\" command"));
|
||
else
|
||
error (_("No symbol \"%s\" in current context."), tmp);
|
||
}
|
||
|
||
}
|
||
|
||
|
||
/* The following two routines, copy_exp and insert_exp, aren't specific to
|
||
Java, so they could go in parse.c, but their only purpose is to support
|
||
the parsing kludges we use in this file, so maybe it's best to isolate
|
||
them here. */
|
||
|
||
/* Copy the expression whose last element is at index ENDPOS - 1 in EXPR
|
||
into a freshly malloc'ed struct expression. Its language_defn is set
|
||
to null. */
|
||
static struct expression *
|
||
copy_exp (struct expression *expr, int endpos)
|
||
{
|
||
int len = length_of_subexp (expr, endpos);
|
||
struct expression *new
|
||
= (struct expression *) malloc (sizeof (*new) + EXP_ELEM_TO_BYTES (len));
|
||
|
||
new->nelts = len;
|
||
memcpy (new->elts, expr->elts + endpos - len, EXP_ELEM_TO_BYTES (len));
|
||
new->language_defn = 0;
|
||
|
||
return new;
|
||
}
|
||
|
||
/* Insert the expression NEW into the current expression (expout) at POS. */
|
||
static void
|
||
insert_exp (struct parser_state *par_state, int pos, struct expression *new)
|
||
{
|
||
int newlen = new->nelts;
|
||
int i;
|
||
|
||
/* Grow expout if necessary. In this function's only use at present,
|
||
this should never be necessary. */
|
||
increase_expout_size (par_state, newlen);
|
||
|
||
for (i = par_state->expout_ptr - 1; i >= pos; i--)
|
||
par_state->expout->elts[i + newlen] = par_state->expout->elts[i];
|
||
|
||
memcpy (par_state->expout->elts + pos, new->elts,
|
||
EXP_ELEM_TO_BYTES (newlen));
|
||
par_state->expout_ptr += newlen;
|
||
}
|