1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2012 Jean Privat <jean@pryen.org>
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
18 module abstract_compiler
22 import auto_super_init
27 # Add compiling options
28 redef class ToolContext
30 var opt_output
: OptionString = new OptionString("Output file", "-o", "--output")
32 var opt_no_cc
: OptionBool = new OptionBool("Do not invoke C compiler", "--no-cc")
34 var opt_cc_path
: OptionArray = new OptionArray("Set include path for C header files (may be used more than once)", "--cc-path")
36 var opt_make_flags
: OptionString = new OptionString("Additional options to make", "--make-flags")
38 var opt_compile_dir
: OptionString = new OptionString("Directory used to generate temporary files", "--compile-dir")
40 var opt_hardening
: OptionBool = new OptionBool("Generate contracts in the C code against bugs in the compiler", "--hardening")
42 var opt_no_shortcut_range
: OptionBool = new OptionBool("Always insantiate a range and its iterator on 'for' loops", "--no-shortcut-range")
43 # --no-check-covariance
44 var opt_no_check_covariance
: OptionBool = new OptionBool("Disable type tests of covariant parameters (dangerous)", "--no-check-covariance")
45 # --no-check-initialization
46 var opt_no_check_initialization
: OptionBool = new OptionBool("Disable isset tests at the end of constructors (dangerous)", "--no-check-initialization")
48 var opt_no_check_assert
: OptionBool = new OptionBool("Disable the evaluation of explicit 'assert' and 'as' (dangerous)", "--no-check-assert")
50 var opt_no_check_autocast
: OptionBool = new OptionBool("Disable implicit casts on unsafe expression usage (dangerous)", "--no-check-autocast")
52 var opt_no_check_other
: OptionBool = new OptionBool("Disable implicit tests: unset attribute, null receiver (dangerous)", "--no-check-other")
53 # --typing-test-metrics
54 var opt_typing_test_metrics
: OptionBool = new OptionBool("Enable static and dynamic count of all type tests", "--typing-test-metrics")
55 # --invocation-metrics
56 var opt_invocation_metrics
: OptionBool = new OptionBool("Enable static and dynamic count of all method invocations", "--invocation-metrics")
58 var opt_stacktrace
: OptionString = new OptionString("Control the generation of stack traces", "--stacktrace")
60 var opt_no_gcc_directive
= new OptionArray("Disable a advanced gcc directives for optimization", "--no-gcc-directive")
65 self.option_context
.add_option
(self.opt_output
, self.opt_no_cc
, self.opt_make_flags
, self.opt_compile_dir
, self.opt_hardening
, self.opt_no_shortcut_range
)
66 self.option_context
.add_option
(self.opt_no_check_covariance
, self.opt_no_check_initialization
, self.opt_no_check_assert
, self.opt_no_check_autocast
, self.opt_no_check_other
)
67 self.option_context
.add_option
(self.opt_typing_test_metrics
, self.opt_invocation_metrics
)
68 self.option_context
.add_option
(self.opt_stacktrace
)
69 self.option_context
.add_option
(self.opt_no_gcc_directive
)
72 redef fun process_options
(args
)
76 var st
= opt_stacktrace
.value
77 if st
== null or st
== "none" or st
== "libunwind" or st
== "nitstack" then
79 else if st
== "auto" then
81 opt_stacktrace
.value
= null
83 print
"Error: unknown value `{st}` for --stacktrace. Use `none`, `libunwind`, `nitstack` or `auto`."
89 redef class ModelBuilder
90 # The compilation directory
91 var compile_dir
: String
93 # Simple indirection to `Toolchain::write_and_make`
94 protected fun write_and_make
(compiler
: AbstractCompiler)
96 var platform
= compiler
.mainmodule
.target_platform
98 if platform
== null then
99 toolchain
= new MakefileToolchain(toolcontext
)
101 toolchain
= platform
.toolchain
(toolcontext
)
103 compile_dir
= toolchain
.compile_dir
104 toolchain
.write_and_make compiler
109 fun toolchain
(toolcontext
: ToolContext): Toolchain is abstract
113 var toolcontext
: ToolContext
115 fun compile_dir
: String
117 var compile_dir
= toolcontext
.opt_compile_dir
.value
118 if compile_dir
== null then compile_dir
= ".nit_compile"
122 fun write_and_make
(compiler
: AbstractCompiler) is abstract
125 class MakefileToolchain
127 # The list of directories to search for included C headers (-I for C compilers)
128 # The list is initially set with :
129 # * the toolcontext --cc-path option
130 # * the NIT_CC_PATH environment variable
131 # * `toolcontext.nit_dir`
132 # Path can be added (or removed) by the client
133 var cc_paths
= new Array[String]
135 protected fun gather_cc_paths
137 # Look for the the Nit clib path
138 var path_env
= toolcontext
.nit_dir
139 if path_env
!= null then
140 var libname
= "{path_env}/clib"
141 if libname
.file_exists
then cc_paths
.add
(libname
)
144 if cc_paths
.is_empty
then
145 toolcontext
.error
(null, "Cannot determine the nit clib path. define envvar NIT_DIR.")
148 # Add user defined cc_paths
149 cc_paths
.append
(toolcontext
.opt_cc_path
.value
)
151 path_env
= "NIT_CC_PATH".environ
152 if not path_env
.is_empty
then
153 cc_paths
.append
(path_env
.split_with
(':'))
157 redef fun write_and_make
(compiler
)
161 var mainmodule
= compiler
.mainmodule
162 var compile_dir
= compile_dir
164 # Generate the .h and .c files
165 # A single C file regroups many compiled rumtime functions
166 # Note that we do not try to be clever an a small change in a Nit source file may change the content of all the generated .c files
168 self.toolcontext
.info
("*** WRITING C ***", 1)
172 var cfiles
= new Array[String]
173 write_files
(compiler
, compile_dir
, cfiles
)
175 # Generate the Makefile
177 write_makefile
(compiler
, compile_dir
, cfiles
)
180 self.toolcontext
.info
("*** END WRITING C: {time1-time0} ***", 2)
182 # Execute the Makefile
184 if self.toolcontext
.opt_no_cc
.value
then return
187 self.toolcontext
.info
("*** COMPILING C ***", 1)
189 compile_c_code
(compiler
, compile_dir
)
192 self.toolcontext
.info
("*** END COMPILING C: {time1-time0} ***", 2)
195 fun write_files
(compiler
: AbstractCompiler, compile_dir
: String, cfiles
: Array[String])
197 if self.toolcontext
.opt_stacktrace
.value
== "nitstack" then compiler
.build_c_to_nit_bindings
199 # Add gc_choser.h to aditionnal bodies
200 var gc_chooser
= new ExternCFile("gc_chooser.c", "-DWITH_LIBGC")
201 compiler
.extern_bodies
.add
(gc_chooser
)
202 compiler
.files_to_copy
.add
"{cc_paths.first}/gc_chooser.c"
203 compiler
.files_to_copy
.add
"{cc_paths.first}/gc_chooser.h"
206 var m2m
= toolcontext
.modelbuilder
.mmodule2nmodule
207 for m
in compiler
.mainmodule
.in_importation
.greaters
do
208 compiler
.finalize_ffi_for_module
(m
)
211 # Copy original .[ch] files to compile_dir
212 for src
in compiler
.files_to_copy
do
213 var basename
= src
.basename
("")
214 var dst
= "{compile_dir}/{basename}"
218 var hfilename
= compiler
.header
.file
.name
+ ".h"
219 var hfilepath
= "{compile_dir}/{hfilename}"
220 var h
= new OFStream.open
(hfilepath
)
221 for l
in compiler
.header
.decl_lines
do
225 for l
in compiler
.header
.lines
do
231 for f
in compiler
.files
do
233 var hfile
: nullable OFStream = null
235 var cfilename
= "{f.name}.0.h"
236 var cfilepath
= "{compile_dir}/{cfilename}"
237 hfile
= new OFStream.open
(cfilepath
)
238 hfile
.write
"#include \"{hfilename}\
"\n"
239 for key
in f
.required_declarations
do
240 if not compiler
.provided_declarations
.has_key
(key
) then
241 var node
= compiler
.requirers_of_declarations
.get_or_null
(key
)
243 node
.debug
"No provided declaration for {key}"
245 print
"No provided declaration for {key}"
249 hfile
.write compiler
.provided_declarations
[key
]
253 var file
: nullable OFStream = null
254 for vis
in f
.writers
do
255 if vis
== compiler
.header
then continue
256 var total_lines
= vis
.lines
.length
+ vis
.decl_lines
.length
257 if total_lines
== 0 then continue
259 if file
== null or count
> 10000 then
261 if file
!= null then file
.close
262 cfilename
= "{f.name}.{i}.c"
263 cfilepath
= "{compile_dir}/{cfilename}"
264 self.toolcontext
.info
("new C source files to compile: {cfilepath}", 3)
265 cfiles
.add
(cfilename
)
266 file
= new OFStream.open
(cfilepath
)
267 file
.write
"#include \"{f.name}.0.h\
"\n"
270 for l
in vis
.decl_lines
do
274 for l
in vis
.lines
do
279 if file
!= null then file
.close
282 self.toolcontext
.info
("Total C source files to compile: {cfiles.length}", 2)
285 fun write_makefile
(compiler
: AbstractCompiler, compile_dir
: String, cfiles
: Array[String])
287 var mainmodule
= compiler
.mainmodule
289 var outname
= self.toolcontext
.opt_output
.value
290 if outname
== null then
291 outname
= "{mainmodule.name}"
294 var orig_dir
=".." # FIXME only works if `compile_dir` is a subdirectory of cwd
295 var outpath
= orig_dir
.join_path
(outname
).simplify_path
296 var makename
= "{mainmodule.name}.mk"
297 var makepath
= "{compile_dir}/{makename}"
298 var makefile
= new OFStream.open
(makepath
)
302 cc_includes
+= " -I \"" + p + "\
""
305 var linker_options
= new HashSet[String]
306 var m2m
= toolcontext
.modelbuilder
.mmodule2nmodule
307 for m
in mainmodule
.in_importation
.greaters
do
308 var libs
= m
.collect_linker_libs
309 if libs
!= null then linker_options
.add_all
(libs
)
312 var ost
= toolcontext
.opt_stacktrace
.value
313 if ost
== "libunwind" or ost
== "nitstack" then linker_options
.add
("-lunwind")
315 makefile
.write
("CC = ccache cc\nCFLAGS = -g -O2\nCINCL = {cc_includes}\nLDFLAGS ?= \nLDLIBS ?= -lm -lgc {linker_options.join(" ")}\n\n")
316 makefile
.write
("all: {outpath}\n\n")
318 var ofiles
= new Array[String]
319 var dep_rules
= new Array[String]
320 # Compile each generated file
322 var o
= f
.strip_extension
(".c") + ".o"
323 makefile
.write
("{o}: {f}\n\t$(CC) $(CFLAGS) $(CINCL) -c -o {o} {f}\n\n")
328 var java_files
= new Array[ExternFile]
330 # Compile each required extern body into a specific .o
331 for f
in compiler
.extern_bodies
do
332 var o
= f
.makefile_rule_name
333 var ff
= f
.filename
.basename
("")
334 makefile
.write
("{o}: {ff}\n")
335 makefile
.write
("\t{f.makefile_rule_content}\n\n")
336 dep_rules
.add
(f
.makefile_rule_name
)
338 if f
.compiles_to_o_file
then ofiles
.add
(o
)
339 if f
.add_to_jar
then java_files
.add
(f
)
342 if not java_files
.is_empty
then
343 var jar_file
= "{outpath}.jar"
345 var class_files_array
= new Array[String]
346 for f
in java_files
do class_files_array
.add
(f
.makefile_rule_name
)
347 var class_files
= class_files_array
.join
(" ")
349 makefile
.write
("{jar_file}: {class_files}\n")
350 makefile
.write
("\tjar cf {jar_file} {class_files}\n\n")
351 dep_rules
.add jar_file
355 makefile
.write
("{outpath}: {dep_rules.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath} {ofiles.join(" ")} $(LDLIBS)\n\n")
357 makefile
.write
("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n\n")
359 self.toolcontext
.info
("Generated makefile: {makepath}", 2)
362 fun compile_c_code
(compiler
: AbstractCompiler, compile_dir
: String)
364 var makename
= "{compiler.mainmodule.name}.mk" # FIXME duplicated from write_makefile
366 var makeflags
= self.toolcontext
.opt_make_flags
.value
367 if makeflags
== null then makeflags
= ""
368 self.toolcontext
.info
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags}", 2)
371 if self.toolcontext
.verbose_level
>= 3 then
372 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1")
374 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1 >/dev/null")
377 toolcontext
.error
(null, "make failed! Error code: {res}.")
382 # Singleton that store the knowledge about the compilation process
383 abstract class AbstractCompiler
384 type VISITOR: AbstractCompilerVisitor
386 # Table corresponding c_names to nit names (methods)
387 var names
= new HashMap[String, String]
389 # The main module of the program currently compiled
390 # Is assigned during the separate compilation
391 var mainmodule
: MModule writable
393 # The real main module of the program
394 var realmainmodule
: MModule
396 # The modeulbuilder used to know the model and the AST
397 var modelbuilder
: ModelBuilder protected writable
399 # Is hardening asked? (see --hardening)
400 fun hardening
: Bool do return self.modelbuilder
.toolcontext
.opt_hardening
.value
402 init(mainmodule
: MModule, modelbuilder
: ModelBuilder)
404 self.mainmodule
= mainmodule
405 self.realmainmodule
= mainmodule
406 self.modelbuilder
= modelbuilder
409 # Force the creation of a new file
410 # The point is to avoid contamination between must-be-compiled-separately files
411 fun new_file
(name
: String): CodeFile
413 var f
= new CodeFile(name
)
418 # The list of all associated files
419 # Used to generate .c files
420 var files
: List[CodeFile] = new List[CodeFile]
422 # Initialize a visitor specific for a compiler engine
423 fun new_visitor
: VISITOR is abstract
425 # Where global declaration are stored (the main .h)
426 var header
: CodeWriter writable
428 # Provide a declaration that can be requested (before or latter) by a visitor
429 fun provide_declaration
(key
: String, s
: String)
431 if self.provided_declarations
.has_key
(key
) then
432 assert self.provided_declarations
[key
] == s
434 self.provided_declarations
[key
] = s
437 private var provided_declarations
= new HashMap[String, String]
439 private var requirers_of_declarations
= new HashMap[String, ANode]
441 # Builds the .c and .h files to be used when generating a Stack Trace
442 # Binds the generated C function names to Nit function names
443 fun build_c_to_nit_bindings
445 var compile_dir
= modelbuilder
.compile_dir
447 var stream
= new OFStream.open
("{compile_dir}/c_functions_hash.c")
448 stream
.write
("#include <string.h>\n")
449 stream
.write
("#include <stdlib.h>\n")
450 stream
.write
("#include \"c_functions_hash
.h\
"\n")
451 stream
.write
("typedef struct C_Nit_Names\{char* name; char* nit_name;\}C_Nit_Names;\n")
452 stream
.write
("const char* get_nit_name(register const char* procproc, register unsigned int len)\{\n")
453 stream
.write
("char* procname = malloc(len+1);")
454 stream
.write
("memcpy(procname, procproc, len);")
455 stream
.write
("procname[len] = '\\0';")
456 stream
.write
("static const C_Nit_Names map[{names.length}] = \{\n")
457 for i
in names
.keys
do
460 stream.write("\
",\"")
461 stream.write(names[i])
462 stream.write("\
"\},\n")
464 stream
.write
("\};\n")
465 stream
.write
("int i;")
466 stream
.write
("for(i = 0; i < {names.length}; i++)\{")
467 stream
.write
("if(strcmp(procname,map[i].name) == 0)\{")
468 stream
.write
("free(procname);")
469 stream
.write
("return map[i].nit_name;")
472 stream
.write
("free(procname);")
473 stream
.write
("return NULL;")
477 stream
= new OFStream.open
("{compile_dir}/c_functions_hash.h")
478 stream
.write
("const char* get_nit_name(register const char* procname, register unsigned int len);\n")
481 extern_bodies
.add
(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
485 # This method call compile_header_strucs method that has to be refined
486 fun compile_header
do
488 var toolctx
= modelbuilder
.toolcontext
489 self.header
.add_decl
("#include <stdlib.h>")
490 self.header
.add_decl
("#include <stdio.h>")
491 self.header
.add_decl
("#include <string.h>")
492 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
494 compile_header_structs
495 compile_nitni_structs
497 var gccd_disable
= modelbuilder
.toolcontext
.opt_no_gcc_directive
.value
498 if gccd_disable
.has
("noreturn") or gccd_disable
.has
("all") then
499 # Signal handler function prototype
500 self.header
.add_decl
("void show_backtrace(int);")
502 self.header
.add_decl
("void show_backtrace(int) __attribute__ ((noreturn));")
505 if gccd_disable
.has
("likely") or gccd_disable
.has
("all") then
506 self.header
.add_decl
("#define likely(x) (x)")
507 self.header
.add_decl
("#define unlikely(x) (x)")
508 else if gccd_disable
.has
("correct-likely") then
509 # invert the `likely` definition
510 # Used by masochists to bench the worst case
511 self.header
.add_decl
("#define likely(x) __builtin_expect((x),0)")
512 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),1)")
514 self.header
.add_decl
("#define likely(x) __builtin_expect((x),1)")
515 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),0)")
518 # Global variable used by intern methods
519 self.header
.add_decl
("extern int glob_argc;")
520 self.header
.add_decl
("extern char **glob_argv;")
521 self.header
.add_decl
("extern val *glob_sys;")
524 # Declaration of structures for live Nit types
525 protected fun compile_header_structs
is abstract
527 # Declaration of structures for nitni undelying the FFI
528 protected fun compile_nitni_structs
is abstract
530 # Generate the main C function.
532 # * allocate the Sys object if it exists
533 # * call init if is exists
534 # * call main if it exists
535 fun compile_main_function
537 var v
= self.new_visitor
538 v
.add_decl
("#include <signal.h>")
539 var ost
= modelbuilder
.toolcontext
.opt_stacktrace
.value
543 modelbuilder
.toolcontext
.opt_stacktrace
.value
= ost
546 if ost
== "nitstack" or ost
== "libunwind" then
547 v
.add_decl
("#define UNW_LOCAL_ONLY")
548 v
.add_decl
("#include <libunwind.h>")
549 if ost
== "nitstack" then
550 v
.add_decl
("#include \"c_functions_hash
.h\
"")
553 v
.add_decl
("int glob_argc;")
554 v
.add_decl
("char **glob_argv;")
555 v
.add_decl
("val *glob_sys;")
557 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
558 for tag
in count_type_test_tags
do
559 v
.add_decl
("long count_type_test_resolved_{tag};")
560 v
.add_decl
("long count_type_test_unresolved_{tag};")
561 v
.add_decl
("long count_type_test_skipped_{tag};")
562 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
563 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
564 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
568 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
569 v
.add_decl
("long count_invoke_by_tables;")
570 v
.add_decl
("long count_invoke_by_direct;")
571 v
.add_decl
("long count_invoke_by_inline;")
572 v
.compiler
.header
.add_decl
("extern long count_invoke_by_tables;")
573 v
.compiler
.header
.add_decl
("extern long count_invoke_by_direct;")
574 v
.compiler
.header
.add_decl
("extern long count_invoke_by_inline;")
577 v
.add_decl
("void sig_handler(int signo)\{")
578 v
.add_decl
("printf(\"Caught signal
: %s\\n\
", strsignal(signo));")
579 v
.add_decl
("show_backtrace(signo);")
582 v
.add_decl
("void show_backtrace (int signo) \{")
583 if ost
== "nitstack" or ost
== "libunwind" then
584 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
585 v
.add_decl
("unw_cursor_t cursor;")
586 v
.add_decl
("if(opt==NULL)\{")
587 v
.add_decl
("unw_context_t uc;")
588 v
.add_decl
("unw_word_t ip;")
589 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
590 v
.add_decl
("unw_getcontext(&uc);")
591 v
.add_decl
("unw_init_local(&cursor, &uc);")
592 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
593 v
.add_decl
("printf(\"-- Stack Trace ------------------------------\\n\
");")
594 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
595 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
596 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
597 if ost
== "nitstack" then
598 v
.add_decl
(" const char* recv = get_nit_name(procname, strlen(procname));")
599 v
.add_decl
(" if (recv != NULL)\{")
600 v
.add_decl
(" printf(\"` %s\\n\", recv);")
601 v.add_decl(" \}else\{")
602 v.add_decl(" printf(\"` %s\\n\
", procname);")
605 v
.add_decl
(" printf(\"` %s \\n\",procname);")
608 v.add_decl("printf(\"-------------------------------------------------\\n\");")
609 v.add_decl("free(procname);")
612 v.add_decl("exit(signo);")
615 v.add_decl("int main(int argc, char** argv) \{")
617 v.add("signal(SIGABRT, sig_handler);")
618 v.add("signal(SIGFPE, sig_handler);")
619 v.add("signal(SIGILL, sig_handler);")
620 v.add("signal(SIGINT, sig_handler);")
621 v.add("signal(SIGTERM, sig_handler);")
622 v.add("signal(SIGSEGV, sig_handler);")
623 v.add("signal(SIGPIPE, sig_handler);")
625 v.add("glob_argc = argc; glob_argv = argv;")
626 v.add("initialize_gc_option();")
627 var main_type = mainmodule.sys_type
628 if main_type != null then
629 var mainmodule = v.compiler.mainmodule
630 var glob_sys = v.init_instance(main_type)
631 v.add("glob_sys = {glob_sys};")
632 var main_init = mainmodule.try_get_primitive_method("init", main_type.mclass)
633 if main_init != null then
634 v.send(main_init, [glob_sys])
636 var main_method = mainmodule.try_get_primitive_method("main", main_type.mclass)
637 if main_method != null then
638 v.send(main_method, [glob_sys])
642 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
643 v.add_decl("long count_type_test_resolved_total = 0;")
644 v.add_decl("long count_type_test_unresolved_total = 0;")
645 v.add_decl("long count_type_test_skipped_total = 0;")
646 v.add_decl("long count_type_test_total_total = 0;")
647 for tag in count_type_test_tags do
648 v.add_decl("long count_type_test_total_{tag};")
649 v.add("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
650 v.add("count_type_test_resolved_total += count_type_test_resolved_{tag};")
651 v.add("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
652 v.add("count_type_test_skipped_total += count_type_test_skipped_{tag};")
653 v.add("count_type_test_total_total += count_type_test_total_{tag};")
655 v.add("printf(\"# dynamic count_type_test: total %l\\n\");")
656 v.add("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\");")
657 var tags = count_type_test_tags.to_a
660 v.add("printf(\"{tag}\");")
661 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
662 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
663 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
664 v.add("printf(\"\\t%ld (%.2f%%)\\n\", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
668 if self.modelbuilder.toolcontext.opt_invocation_metrics.value then
669 v.add_decl("long count_invoke_total;")
670 v.add("count_invoke_total = count_invoke_by_tables + count_invoke_by_direct + count_invoke_by_inline;")
671 v.add("printf(\"# dynamic count_invocation: total %ld\\n\", count_invoke_total);")
672 v.add("printf(\"by table: %ld (%.2f%%)\\n\", count_invoke_by_tables, 100.0*count_invoke_by_tables/count_invoke_total);")
673 v.add("printf(\"direct: %ld (%.2f%%)\\n\", count_invoke_by_direct, 100.0*count_invoke_by_direct/count_invoke_total);")
674 v.add("printf(\"inlined: %ld (%.2f%%)\\n\", count_invoke_by_inline, 100.0*count_invoke_by_inline/count_invoke_total);")
680 # List of additional files required to compile (FFI)
681 var extern_bodies = new Array[ExternFile]
683 # List of source files to copy over to the compile dir
684 var files_to_copy = new Array[String]
686 # This is used to avoid adding an extern file more than once
687 private var seen_extern = new ArraySet[String]
689 # Generate code that initialize the attributes on a new instance
690 fun generate_init_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
692 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
693 self.mainmodule.linearize_mclassdefs(cds)
695 var n = self.modelbuilder.mclassdef2nclassdef[cd]
696 for npropdef in n.n_propdefs do
697 if npropdef isa AAttrPropdef then
698 npropdef.init_expr(v, recv)
704 # Generate code that check if an attribute is correctly initialized
705 fun generate_check_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
707 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
708 self.mainmodule.linearize_mclassdefs(cds)
710 var n = self.modelbuilder.mclassdef2nclassdef[cd]
711 for npropdef in n.n_propdefs do
712 if npropdef isa AAttrPropdef then
713 npropdef.check_expr(v, recv)
721 var count_type_test_tags: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
722 var count_type_test_resolved: HashMap[String, Int] = init_count_type_test_tags
723 var count_type_test_unresolved: HashMap[String, Int] = init_count_type_test_tags
724 var count_type_test_skipped: HashMap[String, Int] = init_count_type_test_tags
726 protected fun init_count_type_test_tags: HashMap[String, Int]
728 var res = new HashMap[String, Int]
729 for tag in count_type_test_tags do
735 # Display stats about compilation process
737 # * type tests against resolved types (`x
isa Collection[Animal]`)
738 # * type tests against unresolved types (`x
isa Collection[E
]`)
739 # * type tests skipped
744 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
745 print "# static count_type_test"
746 print "\tresolved:\tunresolved\tskipped\ttotal"
747 var count_type_test_total = init_count_type_test_tags
748 count_type_test_resolved["total"] = 0
749 count_type_test_unresolved["total"] = 0
750 count_type_test_skipped["total"] = 0
751 count_type_test_total["total"] = 0
752 for tag in count_type_test_tags do
753 count_type_test_total[tag] = count_type_test_resolved[tag] + count_type_test_unresolved[tag] + count_type_test_skipped[tag]
754 count_type_test_resolved["total"] += count_type_test_resolved[tag]
755 count_type_test_unresolved["total"] += count_type_test_unresolved[tag]
756 count_type_test_skipped["total"] += count_type_test_skipped[tag]
757 count_type_test_total["total"] += count_type_test_total[tag]
759 var count_type_test = count_type_test_total["total"]
760 var tags = count_type_test_tags.to_a
764 printn "\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
765 printn "\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
766 printn "\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
767 printn "\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
773 fun finalize_ffi_for_module(mmodule: MModule) do mmodule.finalize_ffi(self)
776 # Avoid division by zero by returning the string "n/a"
777 fun div(a,b:Int):String
779 if b == 0 then return "n/a"
780 return ((a*10000/b).to_f / 100.0).to_precision(2)
784 # A file unit (may be more than one file if
785 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
788 var writers = new Array[CodeWriter]
789 var required_declarations = new HashSet[String]
792 # Where to store generated lines
795 var lines: List[String] = new List[String]
796 var decl_lines: List[String] = new List[String]
798 # Add a line in the main part of the generated C
799 fun add(s: String) do self.lines.add(s)
802 # (used for local or global declaration)
803 fun add_decl(s: String) do self.decl_lines.add(s)
808 file.writers.add(self)
812 # A visitor on the AST of property definition that generate the C code.
813 abstract class AbstractCompilerVisitor
815 type COMPILER: AbstractCompiler
817 # The associated compiler
818 var compiler: COMPILER
820 # The current visited AST node
821 var current_node: nullable ANode writable = null
823 # The current `Frame`
824 var frame: nullable Frame writable
826 # Alias for self.compiler.mainmodule.object_type
827 fun object_type: MClassType do return self.compiler.mainmodule.object_type
829 # Alias for self.compiler.mainmodule.bool_type
830 fun bool_type: MClassType do return self.compiler.mainmodule.bool_type
832 var writer: CodeWriter
834 init(compiler: COMPILER)
836 self.compiler = compiler
837 self.writer = new CodeWriter(compiler.files.last)
840 # Force to get the primitive class named `name
` or abort
841 fun get_class(name: String): MClass do return self.compiler.mainmodule.get_primitive_class(name)
843 # Force to get the primitive property named `name
` in the instance `recv
` or abort
844 fun get_property(name: String, recv: MType): MMethod
846 assert recv isa MClassType
847 return self.compiler.modelbuilder.force_get_primitive_method(self.current_node.as(not null), name, recv.mclass, self.compiler.mainmodule)
850 fun compile_callsite(callsite: CallSite, args: Array[RuntimeVariable]): nullable RuntimeVariable
852 return self.send(callsite.mproperty, args)
855 fun calloc_array(ret_type: MType, arguments: Array[RuntimeVariable]) is abstract
857 fun native_array_def(pname: String, ret_type: nullable MType, arguments: Array[RuntimeVariable]) is abstract
859 # Transform varargs, in raw arguments, into a single argument of type `Array`
860 # Note: this method modify the given `args
`
861 # If there is no vararg, then `args
` is not modified.
862 fun varargize(mpropdef: MPropDef, msignature: MSignature, args: Array[RuntimeVariable])
864 var recv = args.first
865 var vararg_rank = msignature.vararg_rank
866 if vararg_rank >= 0 then
867 assert args.length >= msignature.arity + 1 # because of self
869 args = new Array[RuntimeVariable]
871 args.add(rawargs.first) # recv
873 for i in [0..vararg_rank[ do
874 args.add(rawargs[i+1])
877 var vararg_lastrank = vararg_rank + rawargs.length-1-msignature.arity
878 var vararg = new Array[RuntimeVariable]
879 for i in [vararg_rank..vararg_lastrank] do
880 vararg.add(rawargs[i+1])
883 var elttype = msignature.mparameters[vararg_rank].mtype
884 args.add(self.vararg_instance(mpropdef, recv, vararg, elttype))
886 for i in [vararg_lastrank+1..rawargs.length-1[ do
887 args.add(rawargs[i+1])
890 rawargs.add_all(args)
896 # Anchor a type to the main module and the current receiver
897 fun anchor(mtype: MType): MType
899 if not mtype.need_anchor then return mtype
900 return mtype.anchor_to(self.compiler.mainmodule, self.frame.receiver)
903 fun resolve_for(mtype: MType, recv: RuntimeVariable): MType
905 if not mtype.need_anchor then return mtype
906 return mtype.resolve_for(recv.mcasttype, self.frame.receiver, self.compiler.mainmodule, true)
909 # Unsafely cast a value to a new type
910 # ie the result share the same C variable but my have a different mcasttype
911 # NOTE: if the adaptation is useless then `value
` is returned as it.
912 # ENSURE: `result
.name
== value
.name
`
913 fun autoadapt(value: RuntimeVariable, mtype: MType): RuntimeVariable
915 mtype = self.anchor(mtype)
916 var valmtype = value.mcasttype
917 if valmtype.is_subtype(self.compiler.mainmodule, null, mtype) then
921 if valmtype isa MNullableType and valmtype.mtype.is_subtype(self.compiler.mainmodule, null, mtype) then
922 var res = new RuntimeVariable(value.name, valmtype, valmtype.mtype)
925 var res = new RuntimeVariable(value.name, valmtype, mtype)
930 # Generate a super call from a method definition
931 fun supercall(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
933 fun adapt_signature(m: MMethodDef, args: Array[RuntimeVariable]) is abstract
935 # Box or unbox a value to another type iff a C type conversion is needed
936 # ENSURE: `result
.mtype
.ctype
== mtype
.ctype
`
937 fun autobox(value: RuntimeVariable, mtype: MType): RuntimeVariable is abstract
939 # Generate a polymorphic subtype test
940 fun type_test(value: RuntimeVariable, mtype: MType, tag: String): RuntimeVariable is abstract
942 # Generate the code required to dynamically check if 2 objects share the same runtime type
943 fun is_same_type_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
945 # Generate a Nit "is" for two runtime_variables
946 fun equal_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
950 # Generate a static call on a method definition
951 fun call(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
953 # Generate a polymorphic send for the method `m
` and the arguments `args
`
954 fun send(m: MMethod, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
956 # Generate a monomorphic send for the method `m
`, the type `t
` and the arguments `args
`
957 fun monomorphic_send(m: MMethod, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
959 assert t isa MClassType
960 var propdef = m.lookup_first_definition(self.compiler.mainmodule, t)
961 return self.call(propdef, t, args)
964 # Generate a monomorphic super send from the method `m
`, the type `t
` and the arguments `args
`
965 fun monomorphic_super_send(m: MMethodDef, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
967 assert t isa MClassType
968 m = m.lookup_next_definition(self.compiler.mainmodule, t)
969 return self.call(m, t, args)
972 # Attributes handling
974 # Generate a polymorphic attribute is_set test
975 fun isset_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
977 # Generate a polymorphic attribute read
978 fun read_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
980 # Generate a polymorphic attribute write
981 fun write_attribute(a: MAttribute, recv: RuntimeVariable, value: RuntimeVariable) is abstract
985 # Add a check and an abort for a null reciever if needed
986 fun check_recv_notnull(recv: RuntimeVariable)
988 if self.compiler.modelbuilder.toolcontext.opt_no_check_other.value then return
990 var maybenull = recv.mcasttype isa MNullableType or recv.mcasttype isa MNullType
992 self.add("if (unlikely({recv} == NULL)) \{")
993 self.add_abort("Receiver is null")
1000 private var names: HashSet[String] = new HashSet[String]
1001 private var last: Int = 0
1003 # Return a new name based on `s
` and unique in the visitor
1004 fun get_name(s: String): String
1006 if not self.names.has(s) then
1010 var i = self.last + 1
1013 if not self.names.has(s2) then
1022 # Return an unique and stable identifier associated with an escapemark
1023 fun escapemark_name(e: nullable EscapeMark): String
1026 if escapemark_names.has_key(e) then return escapemark_names[e]
1028 if name == null then name = "label"
1029 name = get_name(name)
1030 escapemark_names[e] = name
1034 private var escapemark_names = new HashMap[EscapeMark, String]
1036 # Return a "const char*" variable associated to the classname of the dynamic type of an object
1037 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
1038 fun class_name_string(value: RuntimeVariable): String is abstract
1040 # Variables handling
1042 protected var variables: HashMap[Variable, RuntimeVariable] = new HashMap[Variable, RuntimeVariable]
1044 # Return the local runtime_variable associated to a Nit local variable
1045 fun variable(variable: Variable): RuntimeVariable
1047 if self.variables.has_key(variable) then
1048 return self.variables[variable]
1050 var name = self.get_name("var_{variable.name}")
1051 var mtype = variable.declared_type.as(not null)
1052 mtype = self.anchor(mtype)
1053 var res = new RuntimeVariable(name, mtype, mtype)
1054 self.add_decl("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
1055 self.variables[variable] = res
1060 # Return a new uninitialized local runtime_variable
1061 fun new_var(mtype: MType): RuntimeVariable
1063 mtype = self.anchor(mtype)
1064 var name = self.get_name("var")
1065 var res = new RuntimeVariable(name, mtype, mtype)
1066 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
1070 # Return a new uninitialized named runtime_variable
1071 fun new_named_var(mtype: MType, name: String): RuntimeVariable
1073 mtype = self.anchor(mtype)
1074 var res = new RuntimeVariable(name, mtype, mtype)
1075 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
1079 # Correctly assign a left and a right value
1080 # Boxing and unboxing is performed if required
1081 fun assign(left, right: RuntimeVariable)
1083 right = self.autobox(right, left.mtype)
1084 self.add("{left} = {right};")
1087 # Generate instances
1089 # Generate a alloc-instance + init-attributes
1090 fun init_instance(mtype: MClassType): RuntimeVariable is abstract
1092 # Generate an integer value
1093 fun int_instance(value: Int): RuntimeVariable
1095 var res = self.new_var(self.get_class("Int").mclass_type)
1096 self.add("{res} = {value};")
1100 # Generate a string value
1101 fun string_instance(string: String): RuntimeVariable
1103 var mtype = self.get_class("String").mclass_type
1104 var name = self.get_name("varonce")
1105 self.add_decl("static {mtype.ctype} {name};")
1106 var res = self.new_var(mtype)
1107 self.add("if ({name}) \{")
1108 self.add("{res} = {name};")
1109 self.add("\} else \{")
1110 var native_mtype = self.get_class("NativeString").mclass_type
1111 var nat = self.new_var(native_mtype)
1112 self.add("{nat} = \"{string.escape_to_c}\";")
1113 var length = self.int_instance(string.length)
1114 self.add("{res} = {self.send(self.get_property("to_s_with_length", native_mtype), [nat, length]).as(not null)};")
1115 self.add("{name} = {res};")
1120 # Generate an array value
1121 fun array_instance(array: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1123 # Get an instance of a array for a vararg
1124 fun vararg_instance(mpropdef: MPropDef, recv: RuntimeVariable, varargs: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1128 # Add a line in the main part of the generated C
1129 fun add(s: String) do self.writer.lines.add(s)
1132 # (used for local or global declaration)
1133 fun add_decl(s: String) do self.writer.decl_lines.add(s)
1135 # Request the presence of a global declaration
1136 fun require_declaration(key: String)
1138 var reqs = self.writer.file.required_declarations
1139 if reqs.has(key) then return
1141 var node = current_node
1142 if node != null then compiler.requirers_of_declarations[key] = node
1145 # Add a declaration in the local-header
1146 # The declaration is ensured to be present once
1147 fun declare_once(s: String)
1149 self.compiler.provide_declaration(s, s)
1150 self.require_declaration(s)
1153 # look for a needed .h and .c file for a given .nit source-file
1154 # FIXME: bad API, parameter should be a `MModule`, not its source-file
1155 fun add_extern(file: String)
1157 file = file.strip_extension(".nit")
1158 var tryfile = file + ".nit.h"
1159 if tryfile.file_exists then
1160 self.declare_once("#include \"{tryfile.basename("")}\"")
1161 self.compiler.files_to_copy.add(tryfile)
1163 tryfile = file + "_nit.h"
1164 if tryfile.file_exists then
1165 self.declare_once("#include \"{tryfile.basename("")}\"")
1166 self.compiler.files_to_copy.add(tryfile)
1169 if self.compiler.seen_extern.has(file) then return
1170 self.compiler.seen_extern.add(file)
1171 tryfile = file + ".nit.c"
1172 if not tryfile.file_exists then
1173 tryfile = file + "_nit.c"
1174 if not tryfile.file_exists then return
1176 var f = new ExternCFile(tryfile.basename(""), "")
1177 self.compiler.extern_bodies.add(f)
1178 self.compiler.files_to_copy.add(tryfile)
1181 # Return a new local runtime_variable initialized with the C expression `cexpr
`.
1182 fun new_expr(cexpr: String, mtype: MType): RuntimeVariable
1184 var res = new_var(mtype)
1185 self.add("{res} = {cexpr};")
1189 # Generate generic abort
1190 # used by aborts, asserts, casts, etc.
1191 fun add_abort(message: String)
1193 self.add("fprintf(stderr, \"Runtime error: %s\", \"{message.escape_to_c}\");")
1199 if self.current_node != null and self.current_node.location.file != null then
1200 self.add("fprintf(stderr, \" (%s:%d)\\n\", \"{self.current_node.location.file.filename.escape_to_c}\", {current_node.location.line_start});")
1202 self.add("fprintf(stderr, \"\\n\");")
1204 self.add("show_backtrace(1);")
1207 # Add a dynamic cast
1208 fun add_cast(value: RuntimeVariable, mtype: MType, tag: String)
1210 var res = self.type_test(value, mtype, tag)
1211 self.add("if (unlikely(!{res})) \{")
1212 var cn = self.class_name_string(value)
1213 self.add("fprintf(stderr, \"Runtime error: Cast failed. Expected `%s
`, got `%s
`\", \"{mtype.to_s.escape_to_c}\", {cn});")
1218 # Generate a return with the value `s
`
1219 fun ret(s: RuntimeVariable)
1221 self.assign(self.frame.returnvar.as(not null), s)
1222 self.add("goto {self.frame.returnlabel.as(not null)};")
1225 # Compile a statement (if any)
1226 fun stmt(nexpr: nullable AExpr)
1228 if nexpr == null then return
1229 var old = self.current_node
1230 self.current_node = nexpr
1232 self.current_node = old
1235 # Compile an expression an return its result
1236 # `mtype
` is the expected return type, pass null if no specific type is expected.
1237 fun expr(nexpr: AExpr, mtype: nullable MType): RuntimeVariable
1239 var old = self.current_node
1240 self.current_node = nexpr
1241 var res = nexpr.expr(self).as(not null)
1242 if mtype != null then
1243 mtype = self.anchor(mtype)
1244 res = self.autobox(res, mtype)
1246 res = autoadapt(res, nexpr.mtype.as(not null))
1247 var implicit_cast_to = nexpr.implicit_cast_to
1248 if implicit_cast_to != null and not self.compiler.modelbuilder.toolcontext.opt_no_check_autocast.value then
1249 add_cast(res, implicit_cast_to, "auto")
1250 res = autoadapt(res, implicit_cast_to)
1252 self.current_node = old
1256 # Alias for `self.expr
(nexpr
, self.bool_type
)`
1257 fun expr_bool(nexpr: AExpr): RuntimeVariable do return expr(nexpr, bool_type)
1259 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1260 fun debug(message: String)
1262 var node = self.current_node
1263 if node == null then
1264 print "?: {message}"
1268 self.add("/* DEBUG: {message} */")
1272 # A C function associated to a Nit method
1273 # Because of customization, a given Nit method can be compiler more that once
1274 abstract class AbstractRuntimeFunction
1276 type COMPILER: AbstractCompiler
1277 type VISITOR: AbstractCompilerVisitor
1279 # The associated Nit method
1280 var mmethoddef: MMethodDef
1282 # The mangled c name of the runtime_function
1283 # Subclasses should redefine `build_c_name
` instead
1286 var res = self.c_name_cache
1287 if res != null then return res
1288 res = self.build_c_name
1289 self.c_name_cache = res
1293 # Non cached version of `c_name
`
1294 protected fun build_c_name: String is abstract
1296 protected var c_name_cache: nullable String writable = null
1298 # Implements a call of the runtime_function
1299 # May inline the body or generate a C function call
1300 fun call(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1302 # Generate the code for the `AbstractRuntimeFunction`
1303 # Warning: compile more than once compilation makes CC unhappy
1304 fun compile_to_c(compiler: COMPILER) is abstract
1307 # A runtime variable hold a runtime value in C.
1308 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1310 # The tricky point is that a single C variable can be associated to more than one `RuntimeVariable` because the static knowledge of the type of an expression can vary in the C code.
1311 class RuntimeVariable
1312 # The name of the variable in the C code
1315 # The static type of the variable (as declard in C)
1318 # The current casted type of the variable (as known in Nit)
1319 var mcasttype: MType writable
1321 # If the variable exaclty a mcasttype?
1322 # false (usual value) means that the variable is a mcasttype or a subtype.
1323 var is_exact: Bool writable = false
1325 init(name: String, mtype: MType, mcasttype: MType)
1329 self.mcasttype = mcasttype
1330 assert not mtype.need_anchor
1331 assert not mcasttype.need_anchor
1334 redef fun to_s do return name
1339 if self.is_exact then
1340 exact_str = " exact"
1345 if self.mtype == self.mcasttype then
1346 type_str = "{mtype}{exact_str}"
1348 type_str = "{mtype}({mcasttype}{exact_str})"
1350 return "<{name}:{type_str}>"
1354 # A frame correspond to a visited property in a `GlobalCompilerVisitor`
1357 type VISITOR: AbstractCompilerVisitor
1359 # The associated visitor
1360 var visitor: VISITOR
1362 # The executed property.
1363 # A Method in case of a call, an attribute in case of a default initialization.
1364 var mpropdef: MPropDef
1366 # The static type of the receiver
1367 var receiver: MClassType
1369 # Arguments of the method (the first is the receiver)
1370 var arguments: Array[RuntimeVariable]
1372 # The runtime_variable associated to the return (in a function)
1373 var returnvar: nullable RuntimeVariable writable = null
1375 # The label at the end of the property
1376 var returnlabel: nullable String writable = null
1380 # Return the C type associated to a given Nit static type
1381 fun ctype: String do return "val*"
1383 fun ctypename: String do return "val"
1385 # Return the name of the C structure associated to a Nit live type
1386 fun c_name: String is abstract
1387 protected var c_name_cache: nullable String protected writable
1390 redef class MClassType
1393 var res = self.c_name_cache
1394 if res != null then return res
1395 res = "{mclass.intro_mmodule.name.to_cmangle}__{mclass.name.to_cmangle}"
1396 self.c_name_cache = res
1400 redef fun ctype: String
1402 if mclass.name == "Int" then
1404 else if mclass.name == "Bool" then
1406 else if mclass.name == "Char" then
1408 else if mclass.name == "Float" then
1410 else if mclass.name == "NativeString" then
1412 else if mclass.name == "NativeArray" then
1414 else if mclass.kind == extern_kind then
1421 redef fun ctypename: String
1423 if mclass.name == "Int" then
1425 else if mclass.name == "Bool" then
1427 else if mclass.name == "Char" then
1429 else if mclass.name == "Float" then
1431 else if mclass.name == "NativeString" then
1433 else if mclass.name == "NativeArray" then
1434 #return "{self.arguments.first.ctype}*"
1436 else if mclass.kind == extern_kind then
1444 redef class MGenericType
1447 var res = self.c_name_cache
1448 if res != null then return res
1450 for t in self.arguments do
1451 res = res + t.c_name
1453 self.c_name_cache = res
1458 redef class MParameterType
1461 var res = self.c_name_cache
1462 if res != null then return res
1463 res = "{self.mclass.c_name}_FT{self.rank}"
1464 self.c_name_cache = res
1469 redef class MVirtualType
1472 var res = self.c_name_cache
1473 if res != null then return res
1474 res = "{self.mproperty.intro.mclassdef.mclass.c_name}_VT{self.mproperty.name}"
1475 self.c_name_cache = res
1480 redef class MNullableType
1483 var res = self.c_name_cache
1484 if res != null then return res
1485 res = "nullable_{self.mtype.c_name}"
1486 self.c_name_cache = res
1492 # Return the name of the C structure associated to a Nit class
1493 fun c_name: String do
1494 var res = self.c_name_cache
1495 if res != null then return res
1496 res = "{intro_mmodule.name.to_cmangle}__{name.to_cmangle}"
1497 self.c_name_cache = res
1500 private var c_name_cache: nullable String
1503 redef class MProperty
1504 fun c_name: String do
1505 var res = self.c_name_cache
1506 if res != null then return res
1507 res = "{self.intro.c_name}"
1508 self.c_name_cache = res
1511 private var c_name_cache: nullable String
1514 redef class MPropDef
1515 type VISITOR: AbstractCompilerVisitor
1517 private var c_name_cache: nullable String
1519 # The mangled name associated to the property
1522 var res = self.c_name_cache
1523 if res != null then return res
1524 res = "{self.mclassdef.mmodule.name.to_cmangle}__{self.mclassdef.mclass.name.to_cmangle}__{self.mproperty.name.to_cmangle}"
1525 self.c_name_cache = res
1530 redef class MMethodDef
1531 # Can the body be inlined?
1532 fun can_inline(v: VISITOR): Bool
1534 var modelbuilder = v.compiler.modelbuilder
1535 if modelbuilder.mpropdef2npropdef.has_key(self) then
1536 var npropdef = modelbuilder.mpropdef2npropdef[self]
1537 return npropdef.can_inline
1538 else if self.mproperty.name == "init" then
1539 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
1546 # Inline the body in another visitor
1547 fun compile_inside_to_c(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable
1549 var modelbuilder = v.compiler.modelbuilder
1550 if modelbuilder.mpropdef2npropdef.has_key(self) then
1551 var npropdef = modelbuilder.mpropdef2npropdef[self]
1552 var oldnode = v.current_node
1553 v.current_node = npropdef
1554 self.compile_parameter_check(v, arguments)
1555 npropdef.compile_to_c(v, self, arguments)
1556 v.current_node = oldnode
1557 else if self.mproperty.name == "init" then
1558 var nclassdef = modelbuilder.mclassdef2nclassdef[self.mclassdef]
1559 var oldnode = v.current_node
1560 v.current_node = nclassdef
1561 self.compile_parameter_check(v, arguments)
1562 nclassdef.compile_to_c(v, self, arguments)
1563 v.current_node = oldnode
1570 # Generate type checks in the C code to check covariant parameters
1571 fun compile_parameter_check(v: VISITOR, arguments: Array[RuntimeVariable])
1573 if v.compiler.modelbuilder.toolcontext.opt_no_check_covariance.value then return
1575 for i in [0..msignature.arity[ do
1576 # skip test for vararg since the array is instantiated with the correct polymorphic type
1577 if msignature.vararg_rank == i then continue
1579 # skip if the cast is not required
1580 var origmtype = self.mproperty.intro.msignature.mparameters[i].mtype
1581 if not origmtype.need_anchor then continue
1583 # get the parameter type
1584 var mtype = self.msignature.mparameters[i].mtype
1587 # note that v decides if and how to implements the cast
1588 v.add("/* Covariant cast for argument {i} ({self.msignature.mparameters[i].name}) {arguments[i+1].inspect} isa {mtype} */")
1589 v.add_cast(arguments[i+1], mtype, "covariance")
1596 redef class APropdef
1597 fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1599 v.add("printf(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at {location.to_s}\\n\");")
1600 debug("Not yet implemented")
1603 fun can_inline: Bool do return true
1606 redef class AConcreteMethPropdef
1607 redef fun compile_to_c(v, mpropdef, arguments)
1609 for i in [0..mpropdef.msignature.arity[ do
1610 var variable = self.n_signature.n_params[i].variable.as(not null)
1611 v.assign(v.variable(variable), arguments[i+1])
1613 # Call the implicit super-init
1614 var auto_super_inits = self.auto_super_inits
1615 if auto_super_inits != null then
1616 var args = [arguments.first]
1617 for auto_super_init in auto_super_inits do
1619 for i in [0..auto_super_init.msignature.arity+1[ do
1620 args.add(arguments[i])
1622 v.compile_callsite(auto_super_init, args)
1625 v.stmt(self.n_block)
1628 redef fun can_inline
1630 if self.auto_super_inits != null then return false
1631 var nblock = self.n_block
1632 if nblock == null then return true
1633 if (mpropdef.mproperty.name == "==" or mpropdef.mproperty.name == "!=") and mpropdef.mclassdef.mclass.name == "Object" then return true
1634 if nblock isa ABlockExpr and nblock.n_expr.length == 0 then return true
1639 redef class AInternMethPropdef
1640 redef fun compile_to_c(v, mpropdef, arguments)
1642 var pname = mpropdef.mproperty.name
1643 var cname = mpropdef.mclassdef.mclass.name
1644 var ret = mpropdef.msignature.return_mtype
1646 ret = v.resolve_for(ret, arguments.first)
1648 if pname != "==" and pname != "!=" then
1649 v.adapt_signature(mpropdef, arguments)
1651 if cname == "Int" then
1652 if pname == "output" then
1653 v.add("printf(\"%ld\\n\", {arguments.first});")
1655 else if pname == "object_id" then
1656 v.ret(arguments.first)
1658 else if pname == "+" then
1659 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1661 else if pname == "-" then
1662 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1664 else if pname == "unary -" then
1665 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1667 else if pname == "*" then
1668 v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
1670 else if pname == "/" then
1671 v.ret(v.new_expr("{arguments[0]} / {arguments[1]}", ret.as(not null)))
1673 else if pname == "%" then
1674 v.ret(v.new_expr("{arguments[0]} % {arguments[1]}", ret.as(not null)))
1676 else if pname == "lshift" then
1677 v.ret(v.new_expr("{arguments[0]} << {arguments[1]}", ret.as(not null)))
1679 else if pname == "rshift" then
1680 v.ret(v.new_expr("{arguments[0]} >> {arguments[1]}", ret.as(not null)))
1682 else if pname == "==" then
1683 v.ret(v.equal_test(arguments[0], arguments[1]))
1685 else if pname == "!=" then
1686 var res = v.equal_test(arguments[0], arguments[1])
1687 v.ret(v.new_expr("!{res}", ret.as(not null)))
1689 else if pname == "<" then
1690 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1692 else if pname == ">" then
1693 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1695 else if pname == "<=" then
1696 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1698 else if pname == ">=" then
1699 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1701 else if pname == "to_f" then
1702 v.ret(v.new_expr("(double){arguments[0]}", ret.as(not null)))
1704 else if pname == "ascii" then
1705 v.ret(v.new_expr("{arguments[0]}", ret.as(not null)))
1708 else if cname == "Char" then
1709 if pname == "output" then
1710 v.add("printf(\"%c\", {arguments.first});")
1712 else if pname == "object_id" then
1713 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1715 else if pname == "successor" then
1716 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1718 else if pname == "predecessor" then
1719 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1721 else if pname == "==" then
1722 v.ret(v.equal_test(arguments[0], arguments[1]))
1724 else if pname == "!=" then
1725 var res = v.equal_test(arguments[0], arguments[1])
1726 v.ret(v.new_expr("!{res}", ret.as(not null)))
1728 else if pname == "<" then
1729 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1731 else if pname == ">" then
1732 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1734 else if pname == "<=" then
1735 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1737 else if pname == ">=" then
1738 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1740 else if pname == "to_i" then
1741 v.ret(v.new_expr("{arguments[0]}-'0'", ret.as(not null)))
1743 else if pname == "ascii" then
1744 v.ret(v.new_expr("(unsigned char){arguments[0]}", ret.as(not null)))
1747 else if cname == "Bool" then
1748 if pname == "output" then
1749 v.add("printf({arguments.first}?\"true\\n\":\"false\\n\");")
1751 else if pname == "object_id" then
1752 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1754 else if pname == "==" then
1755 v.ret(v.equal_test(arguments[0], arguments[1]))
1757 else if pname == "!=" then
1758 var res = v.equal_test(arguments[0], arguments[1])
1759 v.ret(v.new_expr("!{res}", ret.as(not null)))
1762 else if cname == "Float" then
1763 if pname == "output" then
1764 v.add("printf(\"%f\\n\", {arguments.first});")
1766 else if pname == "object_id" then
1767 v.ret(v.new_expr("(double){arguments.first}", ret.as(not null)))
1769 else if pname == "+" then
1770 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1772 else if pname == "-" then
1773 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1775 else if pname == "unary -" then
1776 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1778 else if pname == "succ" then
1779 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1781 else if pname == "prec" then
1782 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1784 else if pname == "*" then
1785 v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
1787 else if pname == "/" then
1788 v.ret(v.new_expr("{arguments[0]} / {arguments[1]}", ret.as(not null)))
1790 else if pname == "==" then
1791 v.ret(v.equal_test(arguments[0], arguments[1]))
1793 else if pname == "!=" then
1794 var res = v.equal_test(arguments[0], arguments[1])
1795 v.ret(v.new_expr("!{res}", ret.as(not null)))
1797 else if pname == "<" then
1798 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1800 else if pname == ">" then
1801 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1803 else if pname == "<=" then
1804 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1806 else if pname == ">=" then
1807 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1809 else if pname == "to_i" then
1810 v.ret(v.new_expr("(long){arguments[0]}", ret.as(not null)))
1813 else if cname == "NativeString" then
1814 if pname == "[]" then
1815 v.ret(v.new_expr("{arguments[0]}[{arguments[1]}]", ret.as(not null)))
1817 else if pname == "[]=" then
1818 v.add("{arguments[0]}[{arguments[1]}]={arguments[2]};")
1820 else if pname == "copy_to" then
1821 v.add("memcpy({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
1823 else if pname == "atoi" then
1824 v.ret(v.new_expr("atoi({arguments[0]});", ret.as(not null)))
1827 else if cname == "NativeArray" then
1828 v.native_array_def(pname, ret, arguments)
1831 if pname == "exit" then
1832 v.add("exit({arguments[1]});")
1834 else if pname == "sys" then
1835 v.ret(v.new_expr("glob_sys", ret.as(not null)))
1837 else if pname == "calloc_string" then
1838 v.ret(v.new_expr("(char*)nit_alloc({arguments[1]})", ret.as(not null)))
1840 else if pname == "calloc_array" then
1841 v.calloc_array(ret.as(not null), arguments)
1843 else if pname == "object_id" then
1844 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1846 else if pname == "is_same_type" then
1847 v.ret(v.is_same_type_test(arguments[0], arguments[1]))
1849 else if pname == "is_same_instance" then
1850 v.ret(v.equal_test(arguments[0], arguments[1]))
1852 else if pname == "output_class_name" then
1853 var nat = v.class_name_string(arguments.first)
1854 v.add("printf(\"%s\\n\", {nat});")
1856 else if pname == "native_class_name" then
1857 var nat = v.class_name_string(arguments.first)
1858 v.ret(v.new_expr("(char*){nat}", ret.as(not null)))
1860 else if pname == "force_garbage_collection" then
1861 v.add("nit_gcollect();")
1863 else if pname == "native_argc" then
1864 v.ret(v.new_expr("glob_argc", ret.as(not null)))
1866 else if pname == "native_argv" then
1867 v.ret(v.new_expr("glob_argv[{arguments[1]}]", ret.as(not null)))
1870 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{mpropdef} at {location.to_s}\\n\");")
1871 debug("Not implemented {mpropdef}")
1875 redef class AExternMethPropdef
1876 redef fun compile_to_c(v, mpropdef, arguments)
1879 var nextern = self.n_extern
1880 if nextern == null then
1881 v.add("fprintf(stderr, \"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1882 v.add("show_backtrace(1);")
1885 externname = nextern.text.substring(1, nextern.text.length-2)
1886 if location.file != null then
1887 var file = location.file.filename
1890 var res: nullable RuntimeVariable = null
1891 var ret = mpropdef.msignature.return_mtype
1893 ret = v.resolve_for(ret, arguments.first)
1894 res = v.new_var(ret)
1896 v.adapt_signature(mpropdef, arguments)
1899 v.add("{externname}({arguments.join(", ")});")
1901 v.add("{res} = {externname}({arguments.join(", ")});")
1907 redef class AExternInitPropdef
1908 redef fun compile_to_c(v, mpropdef, arguments)
1911 var nextern = self.n_extern
1912 if nextern == null then
1913 v.add("printf(\"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1914 v.add("show_backtrace(1);")
1917 externname = nextern.text.substring(1, nextern.text.length-2)
1918 if location.file != null then
1919 var file = location.file.filename
1922 v.adapt_signature(mpropdef, arguments)
1923 var ret = arguments.first.mtype
1924 var res = v.new_var(ret)
1928 v.add("{res} = {externname}({arguments.join(", ")});")
1933 redef class AAttrPropdef
1934 redef fun compile_to_c(v, mpropdef, arguments)
1936 if arguments.length == 1 then
1937 var res = v.read_attribute(self.mpropdef.mproperty, arguments.first)
1938 v.assign(v.frame.returnvar.as(not null), res)
1940 v.write_attribute(self.mpropdef.mproperty, arguments.first, arguments[1])
1944 fun init_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1946 var nexpr = self.n_expr
1947 if nexpr != null then
1948 var oldnode = v.current_node
1949 v.current_node = self
1950 var old_frame = v.frame
1951 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1953 var value = v.expr(nexpr, self.mpropdef.static_mtype)
1954 v.write_attribute(self.mpropdef.mproperty, recv, value)
1956 v.current_node = oldnode
1960 fun check_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1962 var nexpr = self.n_expr
1963 if nexpr != null then return
1965 var oldnode = v.current_node
1966 v.current_node = self
1967 var old_frame = v.frame
1968 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1970 # Force read to check the initialization
1971 v.read_attribute(self.mpropdef.mproperty, recv)
1973 v.current_node = oldnode
1977 redef class AClassdef
1978 private fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1980 if mpropdef == self.mfree_init then
1981 var super_inits = self.super_inits
1982 if super_inits != null then
1983 assert arguments.length == 1
1984 for su in super_inits do
1985 v.send(su, arguments)
1989 var recv = arguments.first
1991 # Collect undefined attributes
1992 for npropdef in self.n_propdefs do
1993 if npropdef isa AAttrPropdef and npropdef.n_expr == null then
1994 v.write_attribute(npropdef.mpropdef.mproperty, recv, arguments[i])
2004 redef class ADeferredMethPropdef
2005 redef fun compile_to_c(v, mpropdef, arguments) do
2006 var cn = v.class_name_string(arguments.first)
2007 v.add("fprintf(stderr, \"Runtime error: Abstract method `%s
` called on `%s
`\", \"{mpropdef.mproperty.name.escape_to_c}\", {cn});")
2010 redef fun can_inline do return true
2014 # Try to compile self as an expression
2015 # Do not call this method directly, use `v
.expr
` instead
2016 private fun expr(v: AbstractCompilerVisitor): nullable RuntimeVariable
2018 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\");")
2019 var mtype = self.mtype
2020 if mtype == null then
2023 var res = v.new_var(mtype)
2024 v.add("/* {res} = NOT YET {class_name} */")
2029 # Try to compile self as a statement
2030 # Do not call this method directly, use `v
.stmt
` instead
2031 private fun stmt(v: AbstractCompilerVisitor)
2034 if res != null then v.add("{res};")
2038 redef class ABlockExpr
2041 for e in self.n_expr do v.stmt(e)
2045 var last = self.n_expr.last
2046 for e in self.n_expr do
2047 if e == last then break
2050 return v.expr(last, null)
2054 redef class AVardeclExpr
2057 var variable = self.variable.as(not null)
2058 var ne = self.n_expr
2060 var i = v.expr(ne, variable.declared_type)
2061 v.assign(v.variable(variable), i)
2066 redef class AVarExpr
2069 var res = v.variable(self.variable.as(not null))
2070 var mtype = self.mtype.as(not null)
2071 return v.autoadapt(res, mtype)
2075 redef class AVarAssignExpr
2078 var variable = self.variable.as(not null)
2079 var i = v.expr(self.n_value, variable.declared_type)
2080 v.assign(v.variable(variable), i)
2084 var variable = self.variable.as(not null)
2085 var i = v.expr(self.n_value, variable.declared_type)
2086 v.assign(v.variable(variable), i)
2091 redef class AVarReassignExpr
2094 var variable = self.variable.as(not null)
2095 var vari = v.variable(variable)
2096 var value = v.expr(self.n_value, variable.declared_type)
2097 var res = v.compile_callsite(self.reassign_callsite.as(not null), [vari, value])
2099 v.assign(v.variable(variable), res)
2103 redef class ASelfExpr
2104 redef fun expr(v) do return v.frame.arguments.first
2107 redef class AContinueExpr
2108 redef fun stmt(v) do v.add("goto CONTINUE_{v.escapemark_name(self.escapemark)};")
2111 redef class ABreakExpr
2112 redef fun stmt(v) do v.add("goto BREAK_{v.escapemark_name(self.escapemark)};")
2115 redef class AReturnExpr
2118 var nexpr = self.n_expr
2119 if nexpr != null then
2120 var returnvar = v.frame.returnvar.as(not null)
2121 var i = v.expr(nexpr, returnvar.mtype)
2122 v.assign(returnvar, i)
2124 v.add("goto {v.frame.returnlabel.as(not null)};")
2128 redef class AAbortExpr
2129 redef fun stmt(v) do v.add_abort("Aborted")
2135 var cond = v.expr_bool(self.n_expr)
2136 v.add("if ({cond})\{")
2145 var res = v.new_var(self.mtype.as(not null))
2146 var cond = v.expr_bool(self.n_expr)
2147 v.add("if ({cond})\{")
2148 v.assign(res, v.expr(self.n_then.as(not null), null))
2150 v.assign(res, v.expr(self.n_else.as(not null), null))
2156 redef class AIfexprExpr
2159 var res = v.new_var(self.mtype.as(not null))
2160 var cond = v.expr_bool(self.n_expr)
2161 v.add("if ({cond})\{")
2162 v.assign(res, v.expr(self.n_then, null))
2164 v.assign(res, v.expr(self.n_else, null))
2173 v.stmt(self.n_block)
2174 var escapemark = self.escapemark
2175 if escapemark != null then
2176 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2181 redef class AWhileExpr
2185 var cond = v.expr_bool(self.n_expr)
2186 v.add("if (!{cond}) break;")
2187 v.stmt(self.n_block)
2188 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2190 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2194 redef class ALoopExpr
2198 v.stmt(self.n_block)
2199 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2201 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2205 redef class AForExpr
2208 # Shortcut on explicit range
2209 # Avoid the instantiation of the range and the iterator
2210 var nexpr = self.n_expr
2211 if self.variables.length == 1 and nexpr isa AOrangeExpr and not v.compiler.modelbuilder.toolcontext.opt_no_shortcut_range.value then
2212 var from = v.expr(nexpr.n_expr, null)
2213 var to = v.expr(nexpr.n_expr2, null)
2214 var variable = v.variable(variables.first)
2216 v.assign(variable, from)
2217 v.add("for(;;) \{ /* shortcut range */")
2219 var ok = v.send(v.get_property("<", variable.mtype), [variable, to])
2221 v.add("if(!{ok}) break;")
2223 v.stmt(self.n_block)
2225 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2226 var succ = v.send(v.get_property("succ", variable.mtype), [variable])
2228 v.assign(variable, succ)
2230 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2234 var cl = v.expr(self.n_expr, null)
2235 var it_meth = self.method_iterator
2236 assert it_meth != null
2237 var it = v.compile_callsite(it_meth, [cl])
2240 var isok_meth = self.method_is_ok
2241 assert isok_meth != null
2242 var ok = v.compile_callsite(isok_meth, [it])
2244 v.add("if(!{ok}) break;")
2245 if self.variables.length == 1 then
2246 var item_meth = self.method_item
2247 assert item_meth != null
2248 var i = v.compile_callsite(item_meth, [it])
2250 v.assign(v.variable(variables.first), i)
2251 else if self.variables.length == 2 then
2252 var key_meth = self.method_key
2253 assert key_meth != null
2254 var i = v.compile_callsite(key_meth, [it])
2256 v.assign(v.variable(variables[0]), i)
2257 var item_meth = self.method_item
2258 assert item_meth != null
2259 i = v.compile_callsite(item_meth, [it])
2261 v.assign(v.variable(variables[1]), i)
2265 v.stmt(self.n_block)
2266 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2267 var next_meth = self.method_next
2268 assert next_meth != null
2269 v.compile_callsite(next_meth, [it])
2271 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2275 redef class AAssertExpr
2278 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return
2280 var cond = v.expr_bool(self.n_expr)
2281 v.add("if (unlikely(!{cond})) \{")
2285 v.add_abort("Assert '{nid.text}' failed")
2287 v.add_abort("Assert failed")
2296 var res = v.new_var(self.mtype.as(not null))
2297 var i1 = v.expr_bool(self.n_expr)
2298 v.add("if ({i1}) \{")
2301 var i2 = v.expr_bool(self.n_expr2)
2302 v.add("{res} = {i2};")
2308 redef class AImpliesExpr
2311 var res = v.new_var(self.mtype.as(not null))
2312 var i1 = v.expr_bool(self.n_expr)
2313 v.add("if (!{i1}) \{")
2316 var i2 = v.expr_bool(self.n_expr2)
2317 v.add("{res} = {i2};")
2323 redef class AAndExpr
2326 var res = v.new_var(self.mtype.as(not null))
2327 var i1 = v.expr_bool(self.n_expr)
2328 v.add("if (!{i1}) \{")
2331 var i2 = v.expr_bool(self.n_expr2)
2332 v.add("{res} = {i2};")
2338 redef class ANotExpr
2341 var cond = v.expr_bool(self.n_expr)
2342 return v.new_expr("!{cond}", self.mtype.as(not null))
2346 redef class AOrElseExpr
2349 var res = v.new_var(self.mtype.as(not null))
2350 var i1 = v.expr(self.n_expr, null)
2351 v.add("if ({i1}!=NULL) \{")
2354 var i2 = v.expr(self.n_expr2, null)
2361 redef class AIntExpr
2362 redef fun expr(v) do return v.new_expr("{self.value.to_s}", self.mtype.as(not null))
2365 redef class AFloatExpr
2366 redef fun expr(v) do return v.new_expr("{self.n_float.text}", self.mtype.as(not null)) # FIXME use value, not n_float
2369 redef class ACharExpr
2370 redef fun expr(v) do return v.new_expr("'{self.value.to_s.escape_to_c}'", self.mtype.as(not null))
2373 redef class AArrayExpr
2376 var mtype = self.mtype.as(MClassType).arguments.first
2377 var array = new Array[RuntimeVariable]
2378 for nexpr in self.n_exprs.n_exprs do
2379 var i = v.expr(nexpr, mtype)
2382 return v.array_instance(array, mtype)
2386 redef class AStringFormExpr
2387 redef fun expr(v) do return v.string_instance(self.value.as(not null))
2390 redef class ASuperstringExpr
2393 var array = new Array[RuntimeVariable]
2394 for ne in self.n_exprs do
2395 if ne isa AStringFormExpr and ne.value == "" then continue # skip empty sub-strings
2396 var i = v.expr(ne, null)
2399 var a = v.array_instance(array, v.object_type)
2400 var res = v.send(v.get_property("to_s", a.mtype), [a])
2405 redef class ACrangeExpr
2408 var i1 = v.expr(self.n_expr, null)
2409 var i2 = v.expr(self.n_expr2, null)
2410 var mtype = self.mtype.as(MClassType)
2411 var res = v.init_instance(mtype)
2412 var it = v.compile_callsite(init_callsite.as(not null), [res, i1, i2])
2417 redef class AOrangeExpr
2420 var i1 = v.expr(self.n_expr, null)
2421 var i2 = v.expr(self.n_expr2, null)
2422 var mtype = self.mtype.as(MClassType)
2423 var res = v.init_instance(mtype)
2424 var it = v.compile_callsite(init_callsite.as(not null), [res, i1, i2])
2429 redef class ATrueExpr
2430 redef fun expr(v) do return v.new_expr("1", self.mtype.as(not null))
2433 redef class AFalseExpr
2434 redef fun expr(v) do return v.new_expr("0", self.mtype.as(not null))
2437 redef class ANullExpr
2438 redef fun expr(v) do return v.new_expr("NULL", self.mtype.as(not null))
2441 redef class AIsaExpr
2444 var i = v.expr(self.n_expr, null)
2445 return v.type_test(i, self.cast_type.as(not null), "isa")
2449 redef class AAsCastExpr
2452 var i = v.expr(self.n_expr, null)
2453 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2455 v.add_cast(i, self.mtype.as(not null), "as")
2460 redef class AAsNotnullExpr
2463 var i = v.expr(self.n_expr, null)
2464 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2466 v.add("if (unlikely({i} == NULL)) \{")
2467 v.add_abort("Cast failed")
2473 redef class AParExpr
2474 redef fun expr(v) do return v.expr(self.n_expr, null)
2477 redef class AOnceExpr
2480 var mtype = self.mtype.as(not null)
2481 var name = v.get_name("varonce")
2482 var guard = v.get_name(name + "_guard")
2483 v.add_decl("static {mtype.ctype} {name};")
2484 v.add_decl("static int {guard};")
2485 var res = v.new_var(mtype)
2486 v.add("if ({guard}) \{")
2487 v.add("{res} = {name};")
2489 var i = v.expr(self.n_expr, mtype)
2490 v.add("{res} = {i};")
2491 v.add("{name} = {res};")
2492 v.add("{guard} = 1;")
2498 redef class ASendExpr
2501 var recv = v.expr(self.n_expr, null)
2503 for a in self.raw_arguments.as(not null) do
2504 args.add(v.expr(a, null))
2506 return v.compile_callsite(self.callsite.as(not null), args)
2510 redef class ASendReassignFormExpr
2513 var recv = v.expr(self.n_expr, null)
2515 for a in self.raw_arguments.as(not null) do
2516 args.add(v.expr(a, null))
2518 var value = v.expr(self.n_value, null)
2520 var left = v.compile_callsite(self.callsite.as(not null), args)
2523 var res = v.compile_callsite(self.reassign_callsite.as(not null), [left, value])
2527 v.compile_callsite(self.write_callsite.as(not null), args)
2531 redef class ASuperExpr
2534 var recv = v.frame.arguments.first
2536 for a in self.n_args.n_exprs do
2537 args.add(v.expr(a, null))
2540 var callsite = self.callsite
2541 if callsite != null then
2542 # Add additionnals arguments for the super init call
2543 if args.length == 1 then
2544 for i in [0..callsite.mproperty.intro.msignature.arity[ do
2545 args.add(v.frame.arguments[i+1])
2549 var res = v.compile_callsite(callsite, args)
2553 if args.length == 1 then
2554 args = v.frame.arguments
2557 # stantard call-next-method
2558 return v.supercall(mpropdef.as(not null), recv.mtype.as(MClassType), args)
2562 redef class ANewExpr
2565 var mtype = self.mtype.as(MClassType)
2567 var ctype = mtype.ctype
2568 if ctype == "val*" then
2569 recv = v.init_instance(mtype)
2570 else if ctype == "void*" then
2571 recv = v.new_expr("NULL/*special!*/", mtype)
2573 debug("cannot new {mtype}")
2577 for a in self.n_args.n_exprs do
2578 args.add(v.expr(a, null))
2580 var res2 = v.compile_callsite(self.callsite.as(not null), args)
2581 if res2 != null then
2582 #self.debug("got {res2} from {mproperty}. drop {recv}")
2589 redef class AAttrExpr
2592 var recv = v.expr(self.n_expr, null)
2593 var mproperty = self.mproperty.as(not null)
2594 return v.read_attribute(mproperty, recv)
2598 redef class AAttrAssignExpr
2601 var recv = v.expr(self.n_expr, null)
2602 var i = v.expr(self.n_value, null)
2603 var mproperty = self.mproperty.as(not null)
2604 v.write_attribute(mproperty, recv, i)
2608 redef class AAttrReassignExpr
2611 var recv = v.expr(self.n_expr, null)
2612 var value = v.expr(self.n_value, null)
2613 var mproperty = self.mproperty.as(not null)
2614 var attr = v.read_attribute(mproperty, recv)
2615 var res = v.compile_callsite(self.reassign_callsite.as(not null), [attr, value])
2617 v.write_attribute(mproperty, recv, res)
2621 redef class AIssetAttrExpr
2624 var recv = v.expr(self.n_expr, null)
2625 var mproperty = self.mproperty.as(not null)
2626 return v.isset_attribute(mproperty, recv)
2630 redef class ADebugTypeExpr
2639 redef class Array[E]
2640 # Return a new `Array` with the elements only contened in self and not in `o
`
2641 fun -(o: Array[E]): Array[E] do
2642 var res = new Array[E]
2643 for e in self do if not o.has(e) then res.add(e)
2649 # All `MProperty` associated to all `MClassDef` of `mclass
`
2650 fun properties(mclass: MClass): Set[MProperty] do
2651 if not self.properties_cache.has_key(mclass) then
2652 var properties = new HashSet[MProperty]
2653 var parents = new Array[MClass]
2654 if self.flatten_mclass_hierarchy.has(mclass) then
2655 parents.add_all(mclass.in_hierarchy(self).direct_greaters)
2657 for parent in parents do
2658 properties.add_all(self.properties(parent))
2660 for mclassdef in mclass.mclassdefs do
2661 for mprop in mclassdef.intro_mproperties do
2662 properties.add(mprop)
2665 self.properties_cache[mclass] = properties
2667 return properties_cache[mclass]
2669 private var properties_cache: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
2671 # Write FFI and nitni results to file
2672 fun finalize_ffi(c: AbstractCompiler) do end
2674 # Give requided addinional system libraries (as given to LD_LIBS)
2675 # Note: can return null instead of an empty set
2676 fun collect_linker_libs: nullable Set[String] do return null