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Optimize for lexer performance: stop backtracking.
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1 # Cycript - Optimizing JavaScript Compiler/Runtime
2 # Copyright (C) 2009-2015 Jay Freeman (saurik)
3
4 # GNU Affero General Public License, Version 3 {{{
5 #
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU Affero General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
10 #
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU Affero General Public License for more details.
15 #
16 # You should have received a copy of the GNU Affero General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
18 # }}}
19
20 .DELETE_ON_ERROR:
21
22 AUTOMAKE_OPTIONS = subdir-objects
23 CLEANFILES =
24 SUBDIRS =
25
26 ACLOCAL_AMFLAGS = -I m4
27
28 AM_CPPFLAGS = -DYYDEBUG=1
29 AM_CPPFLAGS += -include config.h -include $(srcdir)/unconfig.h
30
31 AM_OBJCXXFLAGS = -fobjc-exceptions
32
33 CY_LDFLAGS = -no-undefined -avoid-version -export-dynamic
34
35 lib_LTLIBRARIES =
36
37 lib_LTLIBRARIES += libcycript.la
38 libcycript_la_LDFLAGS = $(CY_LDFLAGS)
39 libcycript_la_LIBADD = $(LTLIBFFI) $(LTLIBGCC) -ldl
40
41 libcycript_la_SOURCES = ConvertUTF.c Decode.cpp Driver.cpp Highlight.cpp Library.cpp Network.cpp Output.cpp Parser.cpp Replace.cpp
42 libcycript_la_SOURCES += Cycript.tab.cc lex.cy.cpp
43
44 filters =
45
46 if CY_CONSOLE
47 bin_PROGRAMS = cycript
48 cycript_SOURCES = Console.cpp Display.cpp
49 cycript_LDADD = libcycript.la $(LTLIBREADLINE) $(LTLIBTERMCAP) $(LTLIBGCC) $(PTHREAD_CFLAGS) -ldl
50 endif
51
52 if CY_EXECUTE
53 libcycript_la_SOURCES += sig/ffi_type.cpp sig/parse.cpp sig/copy.cpp
54 libcycript_la_SOURCES += Bridge.cpp Execute.cpp JavaScriptCore.cpp
55 libcycript_la_LIBADD += $(LTJAVASCRIPTCORE)
56
57 AM_CPPFLAGS += -DCY_EXECUTE
58 filters += C
59
60 Bridge.lo: Bridge.hpp
61
62 CLEANFILES += Bridge.gperf
63 Bridge.gperf: Bridge.def Bridge.sh
64 $(srcdir)/Bridge.sh $< >$@
65
66 CLEANFILES += Bridge.hpp
67 Bridge.hpp: Bridge.gperf
68 $(GPERF) $< | $(SED) -e 's/defined __GNUC_STDC_INLINE__ || defined __GNUC_GNU_INLINE__/0/' >$@
69 endif
70
71 if CY_JAVA
72 filters += Java
73 libcycript_la_SOURCES += Java/Execute.cpp
74 libcycript_la_LIBADD += $(LTJAVA)
75 endif
76
77 if CY_OBJECTIVEC
78 filters += ObjectiveC
79 libcycript_la_SOURCES += ObjectiveC/Output.cpp ObjectiveC/Replace.cpp ObjectiveC/Library.mm
80 libcycript_la_LIBADD += $(LTOBJECTIVEC)
81 endif
82
83 if CY_ATTACH
84 libcycript_la_SOURCES += Handler.cpp
85
86 if CY_CONSOLE
87 cycript_SOURCES += Inject.cpp
88 AM_CPPFLAGS += -DCY_ATTACH
89 endif
90 endif
91
92 CLEANFILES += Cycript.yy
93 Cycript.yy: Cycript.yy.in
94 $(srcdir)/Filter.sh <$< >$@ $(filters)
95
96 CLEANFILES += Cycript.l
97 Cycript.l: Cycript.l.in
98 $(srcdir)/Filter.sh <$< >$@ $(filters)
99
100 CLEANFILES += lex.cy.cpp
101 lex.cy.cpp: Cycript.l
102 $(FLEX) -b -t $< | $(SED) -e 's/int yyl;/yy_size_t yyl;/;s/int yyleng_r;/yy_size_t yyleng_r;/;s/yyg =/yyg __attribute__((__unused__)) =/' >$@
103 grep -F 'No backing up.' lex.backup >/dev/null
104
105 Console.$(OBJEXT) Cycript.tab.lo Driver.lo Handler.lo Highlight.lo Library.lo lex.cy.lo: Cycript.tab.hh
106
107 CLEANFILES += Cycript.tab.cc Cycript.tab.hh stack.hh Cycript.output
108 Cycript.tab.cc Cycript.tab.hh stack.hh Cycript.output: Cycript.yy
109 $(BISON) -v --report=state -Werror $<
110 ! grep -n '^State [0-9]* conflicts:' Cycript.output
111 ! grep -n '^ *$$default reduce using rule [0-9]* (Lex[A-Z][^)]*)$$' Cycript.output -B 2 | grep 'shift, and go to state [0-9]*$$'
112 ! grep -n '^ *$$default reduce using rule [0-9]* (Lex[A-Z][^)]*)$$' Cycript.output -B 2 | grep -v '$$default' | grep 'reduce using rule [0-9]* ([^)]*)$$'