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")
56 var opt_no_stacktrace
: OptionBool = new OptionBool("Disables libunwind and generation of C stack traces (can be problematic when compiling to targets such as Android or NaCl)", "--no-stacktrace")
57 # --stack-trace-C-to-Nit-name-binding
58 var opt_stacktrace
: OptionBool = new OptionBool("Enables the use of gperf to bind C to Nit function names when encountering a Stack trace at runtime", "--nit-stacktrace")
63 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
)
64 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
)
65 self.option_context
.add_option
(self.opt_typing_test_metrics
)
66 self.option_context
.add_option
(self.opt_stacktrace
)
67 self.option_context
.add_option
(self.opt_no_stacktrace
)
71 redef class ModelBuilder
72 redef init(model
, toolcontext
)
74 if toolcontext
.opt_no_stacktrace
.value
and toolcontext
.opt_stacktrace
.value
then
75 print
"Cannot use --nit-stacktrace when --no-stacktrace is activated"
82 # The compilation directory
83 var compile_dir
: String
85 # Simple indirection to `Toolchain::write_and_make`
86 protected fun write_and_make
(compiler
: AbstractCompiler)
88 var platform
= compiler
.mainmodule
.target_platform
90 if platform
== null then
91 toolchain
= new MakefileToolchain(toolcontext
)
93 toolchain
= platform
.toolchain
(toolcontext
)
95 compile_dir
= toolchain
.compile_dir
96 toolchain
.write_and_make compiler
101 fun toolchain
(toolcontext
: ToolContext): Toolchain is abstract
105 var toolcontext
: ToolContext
107 fun compile_dir
: String
109 var compile_dir
= toolcontext
.opt_compile_dir
.value
110 if compile_dir
== null then compile_dir
= ".nit_compile"
114 fun write_and_make
(compiler
: AbstractCompiler) is abstract
117 class MakefileToolchain
119 # The list of directories to search for included C headers (-I for C compilers)
120 # The list is initially set with :
121 # * the toolcontext --cc-path option
122 # * the NIT_CC_PATH environment variable
123 # * some heuristics including the NIT_DIR environment variable and the progname of the process
124 # Path can be added (or removed) by the client
125 var cc_paths
= new Array[String]
127 protected fun gather_cc_paths
129 # Look for the the Nit clib path
130 var path_env
= "NIT_DIR".environ
131 if not path_env
.is_empty
then
132 var libname
= "{path_env}/clib"
133 if libname
.file_exists
then cc_paths
.add
(libname
)
136 var libname
= "{sys.program_name.dirname}/../clib"
137 if libname
.file_exists
then cc_paths
.add
(libname
.simplify_path
)
139 if cc_paths
.is_empty
then
140 toolcontext
.error
(null, "Cannot determine the nit clib path. define envvar NIT_DIR.")
143 # Add user defined cc_paths
144 cc_paths
.append
(toolcontext
.opt_cc_path
.value
)
146 path_env
= "NIT_CC_PATH".environ
147 if not path_env
.is_empty
then
148 cc_paths
.append
(path_env
.split_with
(':'))
152 redef fun write_and_make
(compiler
)
156 var mainmodule
= compiler
.mainmodule
157 var compile_dir
= compile_dir
159 # Generate the .h and .c files
160 # A single C file regroups many compiled rumtime functions
161 # 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
163 self.toolcontext
.info
("*** WRITING C ***", 1)
167 var cfiles
= new Array[String]
168 write_files
(compiler
, compile_dir
, cfiles
)
170 # Generate the Makefile
172 write_makefile
(compiler
, compile_dir
, cfiles
)
175 self.toolcontext
.info
("*** END WRITING C: {time1-time0} ***", 2)
177 # Execute the Makefile
179 if self.toolcontext
.opt_no_cc
.value
then return
182 self.toolcontext
.info
("*** COMPILING C ***", 1)
184 compile_c_code
(compiler
, compile_dir
)
187 self.toolcontext
.info
("*** END COMPILING C: {time1-time0} ***", 2)
190 fun write_files
(compiler
: AbstractCompiler, compile_dir
: String, cfiles
: Array[String])
192 if self.toolcontext
.opt_stacktrace
.value
then compiler
.build_c_to_nit_bindings
194 # Add gc_choser.h to aditionnal bodies
195 var gc_chooser
= new ExternCFile("gc_chooser.c", "-DWITH_LIBGC")
196 compiler
.extern_bodies
.add
(gc_chooser
)
197 compiler
.files_to_copy
.add
"{cc_paths.first}/gc_chooser.c"
198 compiler
.files_to_copy
.add
"{cc_paths.first}/gc_chooser.h"
201 var m2m
= toolcontext
.modelbuilder
.mmodule2nmodule
202 for m
in compiler
.mainmodule
.in_importation
.greaters
do if m2m
.keys
.has
(m
) then
204 if m
.uses_ffi
or amodule
.uses_legacy_ni
then
205 compiler
.finalize_ffi_for_module
(amodule
)
209 # Copy original .[ch] files to compile_dir
210 for src
in compiler
.files_to_copy
do
211 var basename
= src
.basename
("")
212 var dst
= "{compile_dir}/{basename}"
216 var hfilename
= compiler
.header
.file
.name
+ ".h"
217 var hfilepath
= "{compile_dir}/{hfilename}"
218 var h
= new OFStream.open
(hfilepath
)
219 for l
in compiler
.header
.decl_lines
do
223 for l
in compiler
.header
.lines
do
229 for f
in compiler
.files
do
231 var hfile
: nullable OFStream = null
233 var cfilename
= "{f.name}.0.h"
234 var cfilepath
= "{compile_dir}/{cfilename}"
235 hfile
= new OFStream.open
(cfilepath
)
236 hfile
.write
"#include \"{hfilename}\
"\n"
237 for key
in f
.required_declarations
do
238 if not compiler
.provided_declarations
.has_key
(key
) then
239 var node
= compiler
.requirers_of_declarations
.get_or_null
(key
)
241 node
.debug
"No provided declaration for {key}"
243 print
"No provided declaration for {key}"
247 hfile
.write compiler
.provided_declarations
[key
]
251 var file
: nullable OFStream = null
252 for vis
in f
.writers
do
253 if vis
== compiler
.header
then continue
254 var total_lines
= vis
.lines
.length
+ vis
.decl_lines
.length
255 if total_lines
== 0 then continue
257 if file
== null or count
> 10000 then
259 if file
!= null then file
.close
260 cfilename
= "{f.name}.{i}.c"
261 cfilepath
= "{compile_dir}/{cfilename}"
262 self.toolcontext
.info
("new C source files to compile: {cfilepath}", 3)
263 cfiles
.add
(cfilename
)
264 file
= new OFStream.open
(cfilepath
)
265 file
.write
"#include \"{f.name}.0.h\
"\n"
268 for l
in vis
.decl_lines
do
272 for l
in vis
.lines
do
277 if file
!= null then file
.close
280 self.toolcontext
.info
("Total C source files to compile: {cfiles.length}", 2)
283 fun write_makefile
(compiler
: AbstractCompiler, compile_dir
: String, cfiles
: Array[String])
285 var mainmodule
= compiler
.mainmodule
287 var outname
= self.toolcontext
.opt_output
.value
288 if outname
== null then
289 outname
= "{mainmodule.name}"
292 var orig_dir
=".." # FIXME only works if `compile_dir` is a subdirectory of cwd
293 var outpath
= orig_dir
.join_path
(outname
).simplify_path
294 var makename
= "{mainmodule.name}.mk"
295 var makepath
= "{compile_dir}/{makename}"
296 var makefile
= new OFStream.open
(makepath
)
300 cc_includes
+= " -I \"" + p + "\
""
303 var linker_options
= new HashSet[String]
304 var m2m
= toolcontext
.modelbuilder
.mmodule2nmodule
305 for m
in mainmodule
.in_importation
.greaters
do if m2m
.keys
.has
(m
) then
307 linker_options
.add
(amod
.c_linker_options
)
310 if not toolcontext
.opt_no_stacktrace
.value
then linker_options
.add
("-lunwind")
312 makefile
.write
("CC = ccache cc\nCFLAGS = -g -O2\nCINCL = {cc_includes}\nLDFLAGS ?= \nLDLIBS ?= -lm -lgc {linker_options.join(" ")}\n\n")
313 makefile
.write
("all: {outpath}\n\n")
315 var ofiles
= new Array[String]
316 var dep_rules
= new Array[String]
317 # Compile each generated file
319 var o
= f
.strip_extension
(".c") + ".o"
320 makefile
.write
("{o}: {f}\n\t$(CC) $(CFLAGS) $(CINCL) -D NONITCNI -c -o {o} {f}\n\n")
325 # Compile each required extern body into a specific .o
326 for f
in compiler
.extern_bodies
do
327 if f
isa ExternCFile then
328 var basename
= f
.filename
.basename
(".c")
329 var o
= "{basename}.extern.o"
330 var ff
= f
.filename
.basename
("")
331 makefile
.write
("{o}: {ff}\n\t$(CC) $(CFLAGS) -D NONITCNI {f.cflags} -c -o {o} {ff}\n\n")
335 var o
= f
.makefile_rule_name
336 var ff
= f
.filename
.basename
("")
337 makefile
.write
("{o}: {ff}\n")
338 makefile
.write
("\t{f.makefile_rule_content}\n\n")
339 dep_rules
.add
(f
.makefile_rule_name
)
341 if f
isa ExternCppFile then ofiles
.add
(o
)
346 makefile
.write
("{outpath}: {dep_rules.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath} {ofiles.join(" ")} $(LDLIBS)\n\n")
348 makefile
.write
("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n\n")
350 self.toolcontext
.info
("Generated makefile: {makepath}", 2)
353 fun compile_c_code
(compiler
: AbstractCompiler, compile_dir
: String)
355 var makename
= "{compiler.mainmodule.name}.mk" # FIXME duplicated from write_makefile
357 var makeflags
= self.toolcontext
.opt_make_flags
.value
358 if makeflags
== null then makeflags
= ""
359 self.toolcontext
.info
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags}", 2)
362 if self.toolcontext
.verbose_level
>= 3 then
363 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1")
365 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1 >/dev/null")
368 toolcontext
.error
(null, "make failed! Error code: {res}.")
373 # Singleton that store the knowledge about the compilation process
374 abstract class AbstractCompiler
375 type VISITOR: AbstractCompilerVisitor
377 # Table corresponding c_names to nit names (methods)
378 var names
= new HashMap[String, String]
380 # The main module of the program currently compiled
381 # Is assigned during the separate compilation
382 var mainmodule
: MModule writable
384 # The real main module of the program
385 var realmainmodule
: MModule
387 # The modeulbuilder used to know the model and the AST
388 var modelbuilder
: ModelBuilder protected writable
390 # Is hardening asked? (see --hardening)
391 fun hardening
: Bool do return self.modelbuilder
.toolcontext
.opt_hardening
.value
393 init(mainmodule
: MModule, modelbuilder
: ModelBuilder)
395 self.mainmodule
= mainmodule
396 self.realmainmodule
= mainmodule
397 self.modelbuilder
= modelbuilder
400 # Force the creation of a new file
401 # The point is to avoid contamination between must-be-compiled-separately files
402 fun new_file
(name
: String): CodeFile
404 var f
= new CodeFile(name
)
409 # The list of all associated files
410 # Used to generate .c files
411 var files
: List[CodeFile] = new List[CodeFile]
413 # Initialize a visitor specific for a compiler engine
414 fun new_visitor
: VISITOR is abstract
416 # Where global declaration are stored (the main .h)
417 var header
: CodeWriter writable
419 # Provide a declaration that can be requested (before or latter) by a visitor
420 fun provide_declaration
(key
: String, s
: String)
422 if self.provided_declarations
.has_key
(key
) then
423 assert self.provided_declarations
[key
] == s
425 self.provided_declarations
[key
] = s
428 private var provided_declarations
= new HashMap[String, String]
430 private var requirers_of_declarations
= new HashMap[String, ANode]
432 # Builds the .c and .h files to be used when generating a Stack Trace
433 # Binds the generated C function names to Nit function names
434 fun build_c_to_nit_bindings
436 var compile_dir
= modelbuilder
.compile_dir
438 var stream
= new OFStream.open
("{compile_dir}/C_fun_names")
439 stream
.write
("%\{\n#include \"c_functions_hash.h\"\n%\}\n")
440 stream
.write
("%define lookup-function-name get_nit_name\n")
441 stream
.write
("struct C_Nit_Names;\n")
443 stream
.write
("####\n")
444 for i
in names
.keys
do
446 stream
.write
(",\t\"")
447 stream.write(names[i])
450 stream
.write
("####\n")
454 stream
= new OFStream.open
("{compile_dir}/c_functions_hash.h")
455 stream
.write
("typedef struct C_Nit_Names\{char* name; char* nit_name;\}C_Nit_Names;\n")
456 stream
.write
("const struct C_Nit_Names* get_nit_name(register const char *str, register unsigned int len);\n")
459 var x
= new Process("gperf","{compile_dir}/C_fun_names","-t","-7","--output-file={compile_dir}/c_functions_hash.c","-C")
462 extern_bodies
.add
(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
466 # This method call compile_header_strucs method that has to be refined
467 fun compile_header
do
469 var toolctx
= modelbuilder
.toolcontext
470 self.header
.add_decl
("#include <stdlib.h>")
471 self.header
.add_decl
("#include <stdio.h>")
472 self.header
.add_decl
("#include <string.h>")
473 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
475 compile_header_structs
476 compile_nitni_structs
478 # Signal handler function prototype
479 self.header
.add_decl
("void show_backtrace(int);")
481 # Global variable used by intern methods
482 self.header
.add_decl
("extern int glob_argc;")
483 self.header
.add_decl
("extern char **glob_argv;")
484 self.header
.add_decl
("extern val *glob_sys;")
487 # Declaration of structures for live Nit types
488 protected fun compile_header_structs
is abstract
490 # Declaration of structures for nitni undelying the FFI
491 protected fun compile_nitni_structs
is abstract
493 # Generate the main C function.
495 # * allocate the Sys object if it exists
496 # * call init if is exists
497 # * call main if it exists
498 fun compile_main_function
500 var v
= self.new_visitor
501 if modelbuilder
.toolcontext
.opt_stacktrace
.value
then
502 v
.add_decl
("#include \"c_functions_hash
.h\
"")
504 v
.add_decl
("#include <signal.h>")
505 if not modelbuilder
.toolcontext
.opt_no_stacktrace
.value
then
506 v
.add_decl
("#define UNW_LOCAL_ONLY")
507 v
.add_decl
("#include <libunwind.h>")
509 v
.add_decl
("int glob_argc;")
510 v
.add_decl
("char **glob_argv;")
511 v
.add_decl
("val *glob_sys;")
513 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
514 for tag
in count_type_test_tags
do
515 v
.add_decl
("long count_type_test_resolved_{tag};")
516 v
.add_decl
("long count_type_test_unresolved_{tag};")
517 v
.add_decl
("long count_type_test_skipped_{tag};")
518 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
519 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
520 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
524 v
.add_decl
("void sig_handler(int signo)\{")
525 v
.add_decl
("printf(\"Caught signal
: %s\\n\
", strsignal(signo));")
526 v
.add_decl
("show_backtrace(signo);")
529 v
.add_decl
("void show_backtrace (int signo) \{")
530 if not modelbuilder
.toolcontext
.opt_no_stacktrace
.value
then
531 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
532 v
.add_decl
("unw_cursor_t cursor;")
533 v
.add_decl
("if(opt==NULL)\{")
534 v
.add_decl
("unw_context_t uc;")
535 v
.add_decl
("unw_word_t ip;")
536 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
537 v
.add_decl
("unw_getcontext(&uc);")
538 v
.add_decl
("unw_init_local(&cursor, &uc);")
539 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
540 v
.add_decl
("printf(\"-- Stack Trace ------------------------------\\n\
");")
541 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
542 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
543 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
544 if modelbuilder
.toolcontext
.opt_stacktrace
.value
then
545 v
.add_decl
(" const C_Nit_Names* recv = get_nit_name(procname, strlen(procname));")
546 v
.add_decl
(" if (recv != 0)\{")
547 v
.add_decl
(" printf(\"` %s\\n\", recv->nit_name);")
548 v.add_decl(" \}else\{")
549 v.add_decl(" printf(\"` %s\\n\
", procname);")
552 v
.add_decl
(" printf(\"` %s \\n\",procname);")
555 v.add_decl("printf(\"-------------------------------------------------\\n\");")
556 v.add_decl("free(procname);")
559 v.add_decl("exit(signo);")
562 v.add_decl("int main(int argc, char** argv) \{")
564 v.add("signal(SIGABRT, sig_handler);")
565 v.add("signal(SIGFPE, sig_handler);")
566 v.add("signal(SIGILL, sig_handler);")
567 v.add("signal(SIGINT, sig_handler);")
568 v.add("signal(SIGTERM, sig_handler);")
569 v.add("signal(SIGSEGV, sig_handler);")
570 v.add("signal(SIGPIPE, sig_handler);")
572 v.add("glob_argc = argc; glob_argv = argv;")
573 v.add("initialize_gc_option();")
574 var main_type = mainmodule.sys_type
575 if main_type != null then
576 var mainmodule = v.compiler.mainmodule
577 var glob_sys = v.init_instance(main_type)
578 v.add("glob_sys = {glob_sys};")
579 var main_init = mainmodule.try_get_primitive_method("init", main_type.mclass)
580 if main_init != null then
581 v.send(main_init, [glob_sys])
583 var main_method = mainmodule.try_get_primitive_method("main", main_type.mclass)
584 if main_method != null then
585 v.send(main_method, [glob_sys])
589 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
590 v.add_decl("long count_type_test_resolved_total = 0;")
591 v.add_decl("long count_type_test_unresolved_total = 0;")
592 v.add_decl("long count_type_test_skipped_total = 0;")
593 v.add_decl("long count_type_test_total_total = 0;")
594 for tag in count_type_test_tags do
595 v.add_decl("long count_type_test_total_{tag};")
596 v.add("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
597 v.add("count_type_test_resolved_total += count_type_test_resolved_{tag};")
598 v.add("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
599 v.add("count_type_test_skipped_total += count_type_test_skipped_{tag};")
600 v.add("count_type_test_total_total += count_type_test_total_{tag};")
602 v.add("printf(\"# dynamic count_type_test: total %l\\n\");")
603 v.add("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\");")
604 var tags = count_type_test_tags.to_a
607 v.add("printf(\"{tag}\");")
608 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
609 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
610 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
611 v.add("printf(\"\\t%ld (%.2f%%)\\n\", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
619 # List of additional files required to compile (FFI)
620 var extern_bodies = new Array[ExternFile]
622 # List of source files to copy over to the compile dir
623 var files_to_copy = new Array[String]
625 # This is used to avoid adding an extern file more than once
626 private var seen_extern = new ArraySet[String]
628 # Generate code that initialize the attributes on a new instance
629 fun generate_init_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
631 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
632 self.mainmodule.linearize_mclassdefs(cds)
634 var n = self.modelbuilder.mclassdef2nclassdef[cd]
635 for npropdef in n.n_propdefs do
636 if npropdef isa AAttrPropdef then
637 npropdef.init_expr(v, recv)
643 # Generate code that check if an attribute is correctly initialized
644 fun generate_check_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
646 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
647 self.mainmodule.linearize_mclassdefs(cds)
649 var n = self.modelbuilder.mclassdef2nclassdef[cd]
650 for npropdef in n.n_propdefs do
651 if npropdef isa AAttrPropdef then
652 npropdef.check_expr(v, recv)
660 var count_type_test_tags: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
661 var count_type_test_resolved: HashMap[String, Int] = init_count_type_test_tags
662 var count_type_test_unresolved: HashMap[String, Int] = init_count_type_test_tags
663 var count_type_test_skipped: HashMap[String, Int] = init_count_type_test_tags
665 protected fun init_count_type_test_tags: HashMap[String, Int]
667 var res = new HashMap[String, Int]
668 for tag in count_type_test_tags do
674 # Display stats about compilation process
676 # * type tests against resolved types (`x
isa Collection[Animal]`)
677 # * type tests against unresolved types (`x
isa Collection[E
]`)
678 # * type tests skipped
683 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
684 print "# static count_type_test"
685 print "\tresolved:\tunresolved\tskipped\ttotal"
686 var count_type_test_total = init_count_type_test_tags
687 count_type_test_resolved["total"] = 0
688 count_type_test_unresolved["total"] = 0
689 count_type_test_skipped["total"] = 0
690 count_type_test_total["total"] = 0
691 for tag in count_type_test_tags do
692 count_type_test_total[tag] = count_type_test_resolved[tag] + count_type_test_unresolved[tag] + count_type_test_skipped[tag]
693 count_type_test_resolved["total"] += count_type_test_resolved[tag]
694 count_type_test_unresolved["total"] += count_type_test_unresolved[tag]
695 count_type_test_skipped["total"] += count_type_test_skipped[tag]
696 count_type_test_total["total"] += count_type_test_total[tag]
698 var count_type_test = count_type_test_total["total"]
699 var tags = count_type_test_tags.to_a
703 printn "\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
704 printn "\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
705 printn "\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
706 printn "\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
713 # Avoid division by zero by returning the string "n/a"
714 fun div(a,b:Int):String
716 if b == 0 then return "n/a"
717 return ((a*10000/b).to_f / 100.0).to_precision(2)
720 fun finalize_ffi_for_module(nmodule: AModule)
722 var visitor = new_visitor
723 nmodule.finalize_ffi(visitor, modelbuilder)
724 nmodule.finalize_nitni(visitor)
728 # A file unit (may be more than one file if
729 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
732 var writers = new Array[CodeWriter]
733 var required_declarations = new HashSet[String]
736 # Where to store generated lines
739 var lines: List[String] = new List[String]
740 var decl_lines: List[String] = new List[String]
742 # Add a line in the main part of the generated C
743 fun add(s: String) do self.lines.add(s)
746 # (used for local or global declaration)
747 fun add_decl(s: String) do self.decl_lines.add(s)
752 file.writers.add(self)
756 # A visitor on the AST of property definition that generate the C code.
757 abstract class AbstractCompilerVisitor
759 type COMPILER: AbstractCompiler
761 # The associated compiler
762 var compiler: COMPILER
764 # The current visited AST node
765 var current_node: nullable ANode writable = null
767 # The current `Frame`
768 var frame: nullable Frame writable
770 # Alias for self.compiler.mainmodule.object_type
771 fun object_type: MClassType do return self.compiler.mainmodule.object_type
773 # Alias for self.compiler.mainmodule.bool_type
774 fun bool_type: MClassType do return self.compiler.mainmodule.bool_type
776 var writer: CodeWriter
778 init(compiler: COMPILER)
780 self.compiler = compiler
781 self.writer = new CodeWriter(compiler.files.last)
784 # Force to get the primitive class named `name
` or abort
785 fun get_class(name: String): MClass do return self.compiler.mainmodule.get_primitive_class(name)
787 # Force to get the primitive property named `name
` in the instance `recv
` or abort
788 fun get_property(name: String, recv: MType): MMethod
790 assert recv isa MClassType
791 return self.compiler.modelbuilder.force_get_primitive_method(self.current_node.as(not null), name, recv.mclass, self.compiler.mainmodule)
794 fun compile_callsite(callsite: CallSite, args: Array[RuntimeVariable]): nullable RuntimeVariable
796 return self.send(callsite.mproperty, args)
799 fun calloc_array(ret_type: MType, arguments: Array[RuntimeVariable]) is abstract
801 fun native_array_def(pname: String, ret_type: nullable MType, arguments: Array[RuntimeVariable]) is abstract
803 # Transform varargs, in raw arguments, into a single argument of type `Array`
804 # Note: this method modify the given `args
`
805 # If there is no vararg, then `args
` is not modified.
806 fun varargize(mpropdef: MPropDef, msignature: MSignature, args: Array[RuntimeVariable])
808 var recv = args.first
809 var vararg_rank = msignature.vararg_rank
810 if vararg_rank >= 0 then
811 assert args.length >= msignature.arity + 1 # because of self
813 args = new Array[RuntimeVariable]
815 args.add(rawargs.first) # recv
817 for i in [0..vararg_rank[ do
818 args.add(rawargs[i+1])
821 var vararg_lastrank = vararg_rank + rawargs.length-1-msignature.arity
822 var vararg = new Array[RuntimeVariable]
823 for i in [vararg_rank..vararg_lastrank] do
824 vararg.add(rawargs[i+1])
827 var elttype = msignature.mparameters[vararg_rank].mtype
828 args.add(self.vararg_instance(mpropdef, recv, vararg, elttype))
830 for i in [vararg_lastrank+1..rawargs.length-1[ do
831 args.add(rawargs[i+1])
834 rawargs.add_all(args)
840 # Anchor a type to the main module and the current receiver
841 fun anchor(mtype: MType): MType
843 if not mtype.need_anchor then return mtype
844 return mtype.anchor_to(self.compiler.mainmodule, self.frame.receiver)
847 fun resolve_for(mtype: MType, recv: RuntimeVariable): MType
849 if not mtype.need_anchor then return mtype
850 return mtype.resolve_for(recv.mcasttype, self.frame.receiver, self.compiler.mainmodule, true)
853 # Unsafely cast a value to a new type
854 # ie the result share the same C variable but my have a different mcasttype
855 # NOTE: if the adaptation is useless then `value
` is returned as it.
856 # ENSURE: `result
.name
== value
.name
`
857 fun autoadapt(value: RuntimeVariable, mtype: MType): RuntimeVariable
859 mtype = self.anchor(mtype)
860 var valmtype = value.mcasttype
861 if valmtype.is_subtype(self.compiler.mainmodule, null, mtype) then
865 if valmtype isa MNullableType and valmtype.mtype.is_subtype(self.compiler.mainmodule, null, mtype) then
866 var res = new RuntimeVariable(value.name, valmtype, valmtype.mtype)
869 var res = new RuntimeVariable(value.name, valmtype, mtype)
874 # Generate a super call from a method definition
875 fun supercall(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
877 fun adapt_signature(m: MMethodDef, args: Array[RuntimeVariable]) is abstract
879 # Box or unbox a value to another type iff a C type conversion is needed
880 # ENSURE: `result
.mtype
.ctype
== mtype
.ctype
`
881 fun autobox(value: RuntimeVariable, mtype: MType): RuntimeVariable is abstract
883 # Generate a polymorphic subtype test
884 fun type_test(value: RuntimeVariable, mtype: MType, tag: String): RuntimeVariable is abstract
886 # Generate the code required to dynamically check if 2 objects share the same runtime type
887 fun is_same_type_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
889 # Generate a Nit "is" for two runtime_variables
890 fun equal_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
894 # Generate a static call on a method definition
895 fun call(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
897 # Generate a polymorphic send for the method `m
` and the arguments `args
`
898 fun send(m: MMethod, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
900 # Generate a monomorphic send for the method `m
`, the type `t
` and the arguments `args
`
901 fun monomorphic_send(m: MMethod, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
903 assert t isa MClassType
904 var propdef = m.lookup_first_definition(self.compiler.mainmodule, t)
905 return self.call(propdef, t, args)
908 # Generate a monomorphic super send from the method `m
`, the type `t
` and the arguments `args
`
909 fun monomorphic_super_send(m: MMethodDef, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
911 assert t isa MClassType
912 m = m.lookup_next_definition(self.compiler.mainmodule, t)
913 return self.call(m, t, args)
916 # Attributes handling
918 # Generate a polymorphic attribute is_set test
919 fun isset_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
921 # Generate a polymorphic attribute read
922 fun read_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
924 # Generate a polymorphic attribute write
925 fun write_attribute(a: MAttribute, recv: RuntimeVariable, value: RuntimeVariable) is abstract
929 # Add a check and an abort for a null reciever if needed
930 fun check_recv_notnull(recv: RuntimeVariable)
932 if self.compiler.modelbuilder.toolcontext.opt_no_check_other.value then return
934 var maybenull = recv.mcasttype isa MNullableType or recv.mcasttype isa MNullType
936 self.add("if ({recv} == NULL) \{")
937 self.add_abort("Receiver is null")
944 private var names: HashSet[String] = new HashSet[String]
945 private var last: Int = 0
947 # Return a new name based on `s
` and unique in the visitor
948 fun get_name(s: String): String
950 if not self.names.has(s) then
954 var i = self.last + 1
957 if not self.names.has(s2) then
966 # Return an unique and stable identifier associated with an escapemark
967 fun escapemark_name(e: nullable EscapeMark): String
970 if escapemark_names.has_key(e) then return escapemark_names[e]
972 if name == null then name = "label"
973 name = get_name(name)
974 escapemark_names[e] = name
978 private var escapemark_names = new HashMap[EscapeMark, String]
980 # Return a "const char*" variable associated to the classname of the dynamic type of an object
981 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
982 fun class_name_string(value: RuntimeVariable): String is abstract
986 protected var variables: HashMap[Variable, RuntimeVariable] = new HashMap[Variable, RuntimeVariable]
988 # Return the local runtime_variable associated to a Nit local variable
989 fun variable(variable: Variable): RuntimeVariable
991 if self.variables.has_key(variable) then
992 return self.variables[variable]
994 var name = self.get_name("var_{variable.name}")
995 var mtype = variable.declared_type.as(not null)
996 mtype = self.anchor(mtype)
997 var res = new RuntimeVariable(name, mtype, mtype)
998 self.add_decl("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
999 self.variables[variable] = res
1004 # Return a new uninitialized local runtime_variable
1005 fun new_var(mtype: MType): RuntimeVariable
1007 mtype = self.anchor(mtype)
1008 var name = self.get_name("var")
1009 var res = new RuntimeVariable(name, mtype, mtype)
1010 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
1014 # Return a new uninitialized named runtime_variable
1015 fun new_named_var(mtype: MType, name: String): RuntimeVariable
1017 mtype = self.anchor(mtype)
1018 var res = new RuntimeVariable(name, mtype, mtype)
1019 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
1023 # Correctly assign a left and a right value
1024 # Boxing and unboxing is performed if required
1025 fun assign(left, right: RuntimeVariable)
1027 right = self.autobox(right, left.mtype)
1028 self.add("{left} = {right};")
1031 # Generate instances
1033 # Generate a alloc-instance + init-attributes
1034 fun init_instance(mtype: MClassType): RuntimeVariable is abstract
1036 # Generate an integer value
1037 fun int_instance(value: Int): RuntimeVariable
1039 var res = self.new_var(self.get_class("Int").mclass_type)
1040 self.add("{res} = {value};")
1044 # Generate a string value
1045 fun string_instance(string: String): RuntimeVariable
1047 var mtype = self.get_class("String").mclass_type
1048 var name = self.get_name("varonce")
1049 self.add_decl("static {mtype.ctype} {name};")
1050 var res = self.new_var(mtype)
1051 self.add("if ({name}) \{")
1052 self.add("{res} = {name};")
1053 self.add("\} else \{")
1054 var native_mtype = self.get_class("NativeString").mclass_type
1055 var nat = self.new_var(native_mtype)
1056 self.add("{nat} = \"{string.escape_to_c}\";")
1057 var length = self.int_instance(string.length)
1058 self.add("{res} = {self.send(self.get_property("to_s_with_length", native_mtype), [nat, length]).as(not null)};")
1059 self.add("{name} = {res};")
1064 # Generate an array value
1065 fun array_instance(array: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1067 # Get an instance of a array for a vararg
1068 fun vararg_instance(mpropdef: MPropDef, recv: RuntimeVariable, varargs: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1072 # Add a line in the main part of the generated C
1073 fun add(s: String) do self.writer.lines.add(s)
1076 # (used for local or global declaration)
1077 fun add_decl(s: String) do self.writer.decl_lines.add(s)
1079 # Request the presence of a global declaration
1080 fun require_declaration(key: String)
1082 var reqs = self.writer.file.required_declarations
1083 if reqs.has(key) then return
1085 var node = current_node
1086 if node != null then compiler.requirers_of_declarations[key] = node
1089 # Add a declaration in the local-header
1090 # The declaration is ensured to be present once
1091 fun declare_once(s: String)
1093 self.compiler.provide_declaration(s, s)
1094 self.require_declaration(s)
1097 # look for a needed .h and .c file for a given .nit source-file
1098 # FIXME: bad API, parameter should be a `MModule`, not its source-file
1099 fun add_extern(file: String)
1101 file = file.strip_extension(".nit")
1102 var tryfile = file + ".nit.h"
1103 if tryfile.file_exists then
1104 self.declare_once("#include \"{tryfile.basename("")}\"")
1105 self.compiler.files_to_copy.add(tryfile)
1107 tryfile = file + "_nit.h"
1108 if tryfile.file_exists then
1109 self.declare_once("#include \"{tryfile.basename("")}\"")
1110 self.compiler.files_to_copy.add(tryfile)
1113 if self.compiler.seen_extern.has(file) then return
1114 self.compiler.seen_extern.add(file)
1115 tryfile = file + ".nit.c"
1116 if not tryfile.file_exists then
1117 tryfile = file + "_nit.c"
1118 if not tryfile.file_exists then return
1120 var f = new ExternCFile(tryfile.basename(""), "")
1121 self.compiler.extern_bodies.add(f)
1122 self.compiler.files_to_copy.add(tryfile)
1125 # Return a new local runtime_variable initialized with the C expression `cexpr
`.
1126 fun new_expr(cexpr: String, mtype: MType): RuntimeVariable
1128 var res = new_var(mtype)
1129 self.add("{res} = {cexpr};")
1133 # Generate generic abort
1134 # used by aborts, asserts, casts, etc.
1135 fun add_abort(message: String)
1137 self.add("fprintf(stderr, \"Runtime error: %s\", \"{message.escape_to_c}\");")
1143 if self.current_node != null and self.current_node.location.file != null then
1144 self.add("fprintf(stderr, \" (%s:%d)\\n\", \"{self.current_node.location.file.filename.escape_to_c}\", {current_node.location.line_start});")
1146 self.add("fprintf(stderr, \"\\n\");")
1148 self.add("show_backtrace(1);")
1151 # Add a dynamic cast
1152 fun add_cast(value: RuntimeVariable, mtype: MType, tag: String)
1154 var res = self.type_test(value, mtype, tag)
1155 self.add("if (!{res}) \{")
1156 var cn = self.class_name_string(value)
1157 self.add("fprintf(stderr, \"Runtime error: Cast failed. Expected `%s
`, got `%s
`\", \"{mtype.to_s.escape_to_c}\", {cn});")
1162 # Generate a return with the value `s
`
1163 fun ret(s: RuntimeVariable)
1165 self.assign(self.frame.returnvar.as(not null), s)
1166 self.add("goto {self.frame.returnlabel.as(not null)};")
1169 # Compile a statement (if any)
1170 fun stmt(nexpr: nullable AExpr)
1172 if nexpr == null then return
1173 var old = self.current_node
1174 self.current_node = nexpr
1176 self.current_node = old
1179 # Compile an expression an return its result
1180 # `mtype
` is the expected return type, pass null if no specific type is expected.
1181 fun expr(nexpr: AExpr, mtype: nullable MType): RuntimeVariable
1183 var old = self.current_node
1184 self.current_node = nexpr
1185 var res = nexpr.expr(self).as(not null)
1186 if mtype != null then
1187 mtype = self.anchor(mtype)
1188 res = self.autobox(res, mtype)
1190 res = autoadapt(res, nexpr.mtype.as(not null))
1191 var implicit_cast_to = nexpr.implicit_cast_to
1192 if implicit_cast_to != null and not self.compiler.modelbuilder.toolcontext.opt_no_check_autocast.value then
1193 add_cast(res, implicit_cast_to, "auto")
1194 res = autoadapt(res, implicit_cast_to)
1196 self.current_node = old
1200 # Alias for `self.expr
(nexpr
, self.bool_type
)`
1201 fun expr_bool(nexpr: AExpr): RuntimeVariable do return expr(nexpr, bool_type)
1203 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1204 fun debug(message: String)
1206 var node = self.current_node
1207 if node == null then
1208 print "?: {message}"
1212 self.add("/* DEBUG: {message} */")
1216 # A C function associated to a Nit method
1217 # Because of customization, a given Nit method can be compiler more that once
1218 abstract class AbstractRuntimeFunction
1220 type COMPILER: AbstractCompiler
1221 type VISITOR: AbstractCompilerVisitor
1223 # The associated Nit method
1224 var mmethoddef: MMethodDef
1226 # The mangled c name of the runtime_function
1227 # Subclasses should redefine `build_c_name
` instead
1230 var res = self.c_name_cache
1231 if res != null then return res
1232 res = self.build_c_name
1233 self.c_name_cache = res
1237 # Non cached version of `c_name
`
1238 protected fun build_c_name: String is abstract
1240 protected var c_name_cache: nullable String writable = null
1242 # Implements a call of the runtime_function
1243 # May inline the body or generate a C function call
1244 fun call(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1246 # Generate the code for the `AbstractRuntimeFunction`
1247 # Warning: compile more than once compilation makes CC unhappy
1248 fun compile_to_c(compiler: COMPILER) is abstract
1251 # A runtime variable hold a runtime value in C.
1252 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1254 # 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.
1255 class RuntimeVariable
1256 # The name of the variable in the C code
1259 # The static type of the variable (as declard in C)
1262 # The current casted type of the variable (as known in Nit)
1263 var mcasttype: MType writable
1265 # If the variable exaclty a mcasttype?
1266 # false (usual value) means that the variable is a mcasttype or a subtype.
1267 var is_exact: Bool writable = false
1269 init(name: String, mtype: MType, mcasttype: MType)
1273 self.mcasttype = mcasttype
1274 assert not mtype.need_anchor
1275 assert not mcasttype.need_anchor
1278 redef fun to_s do return name
1283 if self.is_exact then
1284 exact_str = " exact"
1289 if self.mtype == self.mcasttype then
1290 type_str = "{mtype}{exact_str}"
1292 type_str = "{mtype}({mcasttype}{exact_str})"
1294 return "<{name}:{type_str}>"
1298 # A frame correspond to a visited property in a `GlobalCompilerVisitor`
1301 type VISITOR: AbstractCompilerVisitor
1303 # The associated visitor
1304 var visitor: VISITOR
1306 # The executed property.
1307 # A Method in case of a call, an attribute in case of a default initialization.
1308 var mpropdef: MPropDef
1310 # The static type of the receiver
1311 var receiver: MClassType
1313 # Arguments of the method (the first is the receiver)
1314 var arguments: Array[RuntimeVariable]
1316 # The runtime_variable associated to the return (in a function)
1317 var returnvar: nullable RuntimeVariable writable = null
1319 # The label at the end of the property
1320 var returnlabel: nullable String writable = null
1324 # Return the C type associated to a given Nit static type
1325 fun ctype: String do return "val*"
1327 fun ctypename: String do return "val"
1329 # Return the name of the C structure associated to a Nit live type
1330 fun c_name: String is abstract
1331 protected var c_name_cache: nullable String protected writable
1334 redef class MClassType
1337 var res = self.c_name_cache
1338 if res != null then return res
1339 res = "{mclass.intro_mmodule.name.to_cmangle}__{mclass.name.to_cmangle}"
1340 self.c_name_cache = res
1344 redef fun ctype: String
1346 if mclass.name == "Int" then
1348 else if mclass.name == "Bool" then
1350 else if mclass.name == "Char" then
1352 else if mclass.name == "Float" then
1354 else if mclass.name == "NativeString" then
1356 else if mclass.name == "NativeArray" then
1358 else if mclass.kind == extern_kind then
1365 redef fun ctypename: String
1367 if mclass.name == "Int" then
1369 else if mclass.name == "Bool" then
1371 else if mclass.name == "Char" then
1373 else if mclass.name == "Float" then
1375 else if mclass.name == "NativeString" then
1377 else if mclass.name == "NativeArray" then
1378 #return "{self.arguments.first.ctype}*"
1380 else if mclass.kind == extern_kind then
1388 redef class MGenericType
1391 var res = self.c_name_cache
1392 if res != null then return res
1394 for t in self.arguments do
1395 res = res + t.c_name
1397 self.c_name_cache = res
1402 redef class MParameterType
1405 var res = self.c_name_cache
1406 if res != null then return res
1407 res = "{self.mclass.c_name}_FT{self.rank}"
1408 self.c_name_cache = res
1413 redef class MVirtualType
1416 var res = self.c_name_cache
1417 if res != null then return res
1418 res = "{self.mproperty.intro.mclassdef.mclass.c_name}_VT{self.mproperty.name}"
1419 self.c_name_cache = res
1424 redef class MNullableType
1427 var res = self.c_name_cache
1428 if res != null then return res
1429 res = "nullable_{self.mtype.c_name}"
1430 self.c_name_cache = res
1436 # Return the name of the C structure associated to a Nit class
1437 fun c_name: String do
1438 var res = self.c_name_cache
1439 if res != null then return res
1440 res = "{intro_mmodule.name.to_cmangle}__{name.to_cmangle}"
1441 self.c_name_cache = res
1444 private var c_name_cache: nullable String
1447 redef class MProperty
1448 fun c_name: String do
1449 var res = self.c_name_cache
1450 if res != null then return res
1451 res = "{self.intro.c_name}"
1452 self.c_name_cache = res
1455 private var c_name_cache: nullable String
1458 redef class MPropDef
1459 type VISITOR: AbstractCompilerVisitor
1461 private var c_name_cache: nullable String
1463 # The mangled name associated to the property
1466 var res = self.c_name_cache
1467 if res != null then return res
1468 res = "{self.mclassdef.mmodule.name.to_cmangle}__{self.mclassdef.mclass.name.to_cmangle}__{self.mproperty.name.to_cmangle}"
1469 self.c_name_cache = res
1474 redef class MMethodDef
1475 # Can the body be inlined?
1476 fun can_inline(v: VISITOR): Bool
1478 var modelbuilder = v.compiler.modelbuilder
1479 if modelbuilder.mpropdef2npropdef.has_key(self) then
1480 var npropdef = modelbuilder.mpropdef2npropdef[self]
1481 return npropdef.can_inline
1482 else if self.mproperty.name == "init" then
1483 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
1490 # Inline the body in another visitor
1491 fun compile_inside_to_c(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable
1493 var modelbuilder = v.compiler.modelbuilder
1494 if modelbuilder.mpropdef2npropdef.has_key(self) then
1495 var npropdef = modelbuilder.mpropdef2npropdef[self]
1496 var oldnode = v.current_node
1497 v.current_node = npropdef
1498 self.compile_parameter_check(v, arguments)
1499 npropdef.compile_to_c(v, self, arguments)
1500 v.current_node = oldnode
1501 else if self.mproperty.name == "init" then
1502 var nclassdef = modelbuilder.mclassdef2nclassdef[self.mclassdef]
1503 var oldnode = v.current_node
1504 v.current_node = nclassdef
1505 self.compile_parameter_check(v, arguments)
1506 nclassdef.compile_to_c(v, self, arguments)
1507 v.current_node = oldnode
1514 # Generate type checks in the C code to check covariant parameters
1515 fun compile_parameter_check(v: VISITOR, arguments: Array[RuntimeVariable])
1517 if v.compiler.modelbuilder.toolcontext.opt_no_check_covariance.value then return
1519 for i in [0..msignature.arity[ do
1520 # skip test for vararg since the array is instantiated with the correct polymorphic type
1521 if msignature.vararg_rank == i then continue
1523 # skip if the cast is not required
1524 var origmtype = self.mproperty.intro.msignature.mparameters[i].mtype
1525 if not origmtype.need_anchor then continue
1527 # get the parameter type
1528 var mtype = self.msignature.mparameters[i].mtype
1531 # note that v decides if and how to implements the cast
1532 v.add("/* Covariant cast for argument {i} ({self.msignature.mparameters[i].name}) {arguments[i+1].inspect} isa {mtype} */")
1533 v.add_cast(arguments[i+1], mtype, "covariance")
1540 redef class APropdef
1541 fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1543 v.add("printf(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at {location.to_s}\\n\");")
1544 debug("Not yet implemented")
1547 fun can_inline: Bool do return true
1550 redef class AConcreteMethPropdef
1551 redef fun compile_to_c(v, mpropdef, arguments)
1553 for i in [0..mpropdef.msignature.arity[ do
1554 var variable = self.n_signature.n_params[i].variable.as(not null)
1555 v.assign(v.variable(variable), arguments[i+1])
1557 # Call the implicit super-init
1558 var auto_super_inits = self.auto_super_inits
1559 if auto_super_inits != null then
1560 var args = [arguments.first]
1561 for auto_super_init in auto_super_inits do
1563 for i in [0..auto_super_init.msignature.arity+1[ do
1564 args.add(arguments[i])
1566 v.compile_callsite(auto_super_init, args)
1569 v.stmt(self.n_block)
1572 redef fun can_inline
1574 if self.auto_super_inits != null then return false
1575 var nblock = self.n_block
1576 if nblock == null then return true
1577 if (mpropdef.mproperty.name == "==" or mpropdef.mproperty.name == "!=") and mpropdef.mclassdef.mclass.name == "Object" then return true
1578 if nblock isa ABlockExpr and nblock.n_expr.length == 0 then return true
1583 redef class AInternMethPropdef
1584 redef fun compile_to_c(v, mpropdef, arguments)
1586 var pname = mpropdef.mproperty.name
1587 var cname = mpropdef.mclassdef.mclass.name
1588 var ret = mpropdef.msignature.return_mtype
1590 ret = v.resolve_for(ret, arguments.first)
1592 if pname != "==" and pname != "!=" then
1593 v.adapt_signature(mpropdef, arguments)
1595 if cname == "Int" then
1596 if pname == "output" then
1597 v.add("printf(\"%ld\\n\", {arguments.first});")
1599 else if pname == "object_id" then
1600 v.ret(arguments.first)
1602 else if pname == "+" then
1603 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1605 else if pname == "-" then
1606 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1608 else if pname == "unary -" then
1609 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1611 else if pname == "succ" then
1612 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1614 else if pname == "prec" then
1615 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1617 else if pname == "*" then
1618 v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
1620 else if pname == "/" then
1621 v.ret(v.new_expr("{arguments[0]} / {arguments[1]}", ret.as(not null)))
1623 else if pname == "%" then
1624 v.ret(v.new_expr("{arguments[0]} % {arguments[1]}", ret.as(not null)))
1626 else if pname == "lshift" then
1627 v.ret(v.new_expr("{arguments[0]} << {arguments[1]}", ret.as(not null)))
1629 else if pname == "rshift" then
1630 v.ret(v.new_expr("{arguments[0]} >> {arguments[1]}", ret.as(not null)))
1632 else if pname == "==" then
1633 v.ret(v.equal_test(arguments[0], arguments[1]))
1635 else if pname == "!=" then
1636 var res = v.equal_test(arguments[0], arguments[1])
1637 v.ret(v.new_expr("!{res}", ret.as(not null)))
1639 else if pname == "<" then
1640 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1642 else if pname == ">" then
1643 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1645 else if pname == "<=" then
1646 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1648 else if pname == ">=" then
1649 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1651 else if pname == "to_f" then
1652 v.ret(v.new_expr("(double){arguments[0]}", ret.as(not null)))
1654 else if pname == "ascii" then
1655 v.ret(v.new_expr("{arguments[0]}", ret.as(not null)))
1658 else if cname == "Char" then
1659 if pname == "output" then
1660 v.add("printf(\"%c\", {arguments.first});")
1662 else if pname == "object_id" then
1663 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1665 else if pname == "+" then
1666 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1668 else if pname == "-" then
1669 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1671 else if pname == "==" then
1672 v.ret(v.equal_test(arguments[0], arguments[1]))
1674 else if pname == "!=" then
1675 var res = v.equal_test(arguments[0], arguments[1])
1676 v.ret(v.new_expr("!{res}", ret.as(not null)))
1678 else if pname == "succ" then
1679 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1681 else if pname == "prec" then
1682 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1684 else if pname == "<" then
1685 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1687 else if pname == ">" then
1688 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1690 else if pname == "<=" then
1691 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1693 else if pname == ">=" then
1694 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1696 else if pname == "to_i" then
1697 v.ret(v.new_expr("{arguments[0]}-'0'", ret.as(not null)))
1699 else if pname == "ascii" then
1700 v.ret(v.new_expr("(unsigned char){arguments[0]}", ret.as(not null)))
1703 else if cname == "Bool" then
1704 if pname == "output" then
1705 v.add("printf({arguments.first}?\"true\\n\":\"false\\n\");")
1707 else if pname == "object_id" then
1708 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1710 else if pname == "==" then
1711 v.ret(v.equal_test(arguments[0], arguments[1]))
1713 else if pname == "!=" then
1714 var res = v.equal_test(arguments[0], arguments[1])
1715 v.ret(v.new_expr("!{res}", ret.as(not null)))
1718 else if cname == "Float" then
1719 if pname == "output" then
1720 v.add("printf(\"%f\\n\", {arguments.first});")
1722 else if pname == "object_id" then
1723 v.ret(v.new_expr("(double){arguments.first}", ret.as(not null)))
1725 else if pname == "+" then
1726 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", 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 == "unary -" then
1732 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1734 else if pname == "succ" then
1735 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1737 else if pname == "prec" then
1738 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1740 else if pname == "*" then
1741 v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
1743 else if pname == "/" then
1744 v.ret(v.new_expr("{arguments[0]} / {arguments[1]}", ret.as(not null)))
1746 else if pname == "==" then
1747 v.ret(v.equal_test(arguments[0], arguments[1]))
1749 else if pname == "!=" then
1750 var res = v.equal_test(arguments[0], arguments[1])
1751 v.ret(v.new_expr("!{res}", ret.as(not null)))
1753 else if pname == "<" then
1754 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1756 else if pname == ">" then
1757 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1759 else if pname == "<=" then
1760 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1762 else if pname == ">=" then
1763 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1765 else if pname == "to_i" then
1766 v.ret(v.new_expr("(long){arguments[0]}", ret.as(not null)))
1769 else if cname == "NativeString" then
1770 if pname == "[]" then
1771 v.ret(v.new_expr("{arguments[0]}[{arguments[1]}]", ret.as(not null)))
1773 else if pname == "[]=" then
1774 v.add("{arguments[0]}[{arguments[1]}]={arguments[2]};")
1776 else if pname == "copy_to" then
1777 v.add("memcpy({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
1779 else if pname == "atoi" then
1780 v.ret(v.new_expr("atoi({arguments[0]});", ret.as(not null)))
1783 else if cname == "NativeArray" then
1784 v.native_array_def(pname, ret, arguments)
1787 if pname == "exit" then
1788 v.add("exit({arguments[1]});")
1790 else if pname == "sys" then
1791 v.ret(v.new_expr("glob_sys", ret.as(not null)))
1793 else if pname == "calloc_string" then
1794 v.ret(v.new_expr("(char*)nit_alloc({arguments[1]})", ret.as(not null)))
1796 else if pname == "calloc_array" then
1797 v.calloc_array(ret.as(not null), arguments)
1799 else if pname == "object_id" then
1800 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1802 else if pname == "is_same_type" then
1803 v.ret(v.is_same_type_test(arguments[0], arguments[1]))
1805 else if pname == "is_same_instance" then
1806 v.ret(v.equal_test(arguments[0], arguments[1]))
1808 else if pname == "output_class_name" then
1809 var nat = v.class_name_string(arguments.first)
1810 v.add("printf(\"%s\\n\", {nat});")
1812 else if pname == "native_class_name" then
1813 var nat = v.class_name_string(arguments.first)
1814 v.ret(v.new_expr("(char*){nat}", ret.as(not null)))
1816 else if pname == "force_garbage_collection" then
1817 v.add("nit_gcollect();")
1819 else if pname == "native_argc" then
1820 v.ret(v.new_expr("glob_argc", ret.as(not null)))
1822 else if pname == "native_argv" then
1823 v.ret(v.new_expr("glob_argv[{arguments[1]}]", ret.as(not null)))
1826 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{mpropdef} at {location.to_s}\\n\");")
1827 debug("Not implemented {mpropdef}")
1831 redef class AExternMethPropdef
1832 redef fun compile_to_c(v, mpropdef, arguments)
1835 var nextern = self.n_extern
1836 if nextern == null then
1837 v.add("fprintf(stderr, \"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1838 v.add("show_backtrace(1);")
1841 externname = nextern.text.substring(1, nextern.text.length-2)
1842 if location.file != null then
1843 var file = location.file.filename
1846 var res: nullable RuntimeVariable = null
1847 var ret = mpropdef.msignature.return_mtype
1849 ret = v.resolve_for(ret, arguments.first)
1850 res = v.new_var(ret)
1852 v.adapt_signature(mpropdef, arguments)
1855 v.add("{externname}({arguments.join(", ")});")
1857 v.add("{res} = {externname}({arguments.join(", ")});")
1863 redef class AExternInitPropdef
1864 redef fun compile_to_c(v, mpropdef, arguments)
1867 var nextern = self.n_extern
1868 if nextern == null then
1869 v.add("printf(\"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1870 v.add("show_backtrace(1);")
1873 externname = nextern.text.substring(1, nextern.text.length-2)
1874 if location.file != null then
1875 var file = location.file.filename
1878 v.adapt_signature(mpropdef, arguments)
1879 var ret = arguments.first.mtype
1880 var res = v.new_var(ret)
1884 v.add("{res} = {externname}({arguments.join(", ")});")
1889 redef class AAttrPropdef
1890 redef fun compile_to_c(v, mpropdef, arguments)
1892 if arguments.length == 1 then
1893 var res = v.read_attribute(self.mpropdef.mproperty, arguments.first)
1894 v.assign(v.frame.returnvar.as(not null), res)
1896 v.write_attribute(self.mpropdef.mproperty, arguments.first, arguments[1])
1900 fun init_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1902 var nexpr = self.n_expr
1903 if nexpr != null then
1904 var oldnode = v.current_node
1905 v.current_node = self
1906 var old_frame = v.frame
1907 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1909 var value = v.expr(nexpr, self.mpropdef.static_mtype)
1910 v.write_attribute(self.mpropdef.mproperty, recv, value)
1912 v.current_node = oldnode
1916 fun check_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1918 var nexpr = self.n_expr
1919 if nexpr != null then return
1921 var oldnode = v.current_node
1922 v.current_node = self
1923 var old_frame = v.frame
1924 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1926 # Force read to check the initialization
1927 v.read_attribute(self.mpropdef.mproperty, recv)
1929 v.current_node = oldnode
1933 redef class AClassdef
1934 private fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1936 if mpropdef == self.mfree_init then
1937 var super_inits = self.super_inits
1938 if super_inits != null then
1939 assert arguments.length == 1
1940 for su in super_inits do
1941 v.send(su, arguments)
1945 var recv = arguments.first
1947 # Collect undefined attributes
1948 for npropdef in self.n_propdefs do
1949 if npropdef isa AAttrPropdef and npropdef.n_expr == null then
1950 v.write_attribute(npropdef.mpropdef.mproperty, recv, arguments[i])
1960 redef class ADeferredMethPropdef
1961 redef fun compile_to_c(v, mpropdef, arguments) do
1962 var cn = v.class_name_string(arguments.first)
1963 v.add("fprintf(stderr, \"Runtime error: Abstract method `%s
` called on `%s
`\", \"{mpropdef.mproperty.name.escape_to_c}\", {cn});")
1966 redef fun can_inline do return true
1970 # Try to compile self as an expression
1971 # Do not call this method directly, use `v
.expr
` instead
1972 private fun expr(v: AbstractCompilerVisitor): nullable RuntimeVariable
1974 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\");")
1975 var mtype = self.mtype
1976 if mtype == null then
1979 var res = v.new_var(mtype)
1980 v.add("/* {res} = NOT YET {class_name} */")
1985 # Try to compile self as a statement
1986 # Do not call this method directly, use `v
.stmt
` instead
1987 private fun stmt(v: AbstractCompilerVisitor)
1990 if res != null then v.add("{res};")
1994 redef class ABlockExpr
1997 for e in self.n_expr do v.stmt(e)
2001 var last = self.n_expr.last
2002 for e in self.n_expr do
2003 if e == last then break
2006 return v.expr(last, null)
2010 redef class AVardeclExpr
2013 var variable = self.variable.as(not null)
2014 var ne = self.n_expr
2016 var i = v.expr(ne, variable.declared_type)
2017 v.assign(v.variable(variable), i)
2022 redef class AVarExpr
2025 var res = v.variable(self.variable.as(not null))
2026 var mtype = self.mtype.as(not null)
2027 return v.autoadapt(res, mtype)
2031 redef class AVarAssignExpr
2034 var variable = self.variable.as(not null)
2035 var i = v.expr(self.n_value, variable.declared_type)
2036 v.assign(v.variable(variable), i)
2040 var variable = self.variable.as(not null)
2041 var i = v.expr(self.n_value, variable.declared_type)
2042 v.assign(v.variable(variable), i)
2047 redef class AVarReassignExpr
2050 var variable = self.variable.as(not null)
2051 var vari = v.variable(variable)
2052 var value = v.expr(self.n_value, variable.declared_type)
2053 var res = v.compile_callsite(self.reassign_callsite.as(not null), [vari, value])
2055 v.assign(v.variable(variable), res)
2059 redef class ASelfExpr
2060 redef fun expr(v) do return v.frame.arguments.first
2063 redef class AContinueExpr
2064 redef fun stmt(v) do v.add("goto CONTINUE_{v.escapemark_name(self.escapemark)};")
2067 redef class ABreakExpr
2068 redef fun stmt(v) do v.add("goto BREAK_{v.escapemark_name(self.escapemark)};")
2071 redef class AReturnExpr
2074 var nexpr = self.n_expr
2075 if nexpr != null then
2076 var returnvar = v.frame.returnvar.as(not null)
2077 var i = v.expr(nexpr, returnvar.mtype)
2078 v.assign(returnvar, i)
2080 v.add("goto {v.frame.returnlabel.as(not null)};")
2084 redef class AAbortExpr
2085 redef fun stmt(v) do v.add_abort("Aborted")
2091 var cond = v.expr_bool(self.n_expr)
2092 v.add("if ({cond})\{")
2101 var res = v.new_var(self.mtype.as(not null))
2102 var cond = v.expr_bool(self.n_expr)
2103 v.add("if ({cond})\{")
2104 v.assign(res, v.expr(self.n_then.as(not null), null))
2106 v.assign(res, v.expr(self.n_else.as(not null), null))
2112 redef class AIfexprExpr
2115 var res = v.new_var(self.mtype.as(not null))
2116 var cond = v.expr_bool(self.n_expr)
2117 v.add("if ({cond})\{")
2118 v.assign(res, v.expr(self.n_then, null))
2120 v.assign(res, v.expr(self.n_else, null))
2129 v.stmt(self.n_block)
2130 var escapemark = self.escapemark
2131 if escapemark != null then
2132 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2137 redef class AWhileExpr
2141 var cond = v.expr_bool(self.n_expr)
2142 v.add("if (!{cond}) break;")
2143 v.stmt(self.n_block)
2144 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2146 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2150 redef class ALoopExpr
2154 v.stmt(self.n_block)
2155 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2157 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2161 redef class AForExpr
2164 # Shortcut on explicit range
2165 # Avoid the instantiation of the range and the iterator
2166 var nexpr = self.n_expr
2167 if self.variables.length == 1 and nexpr isa AOrangeExpr and not v.compiler.modelbuilder.toolcontext.opt_no_shortcut_range.value then
2168 var from = v.expr(nexpr.n_expr, null)
2169 var to = v.expr(nexpr.n_expr2, null)
2170 var variable = v.variable(variables.first)
2172 v.assign(variable, from)
2173 v.add("for(;;) \{ /* shortcut range */")
2175 var ok = v.send(v.get_property("<", variable.mtype), [variable, to])
2177 v.add("if(!{ok}) break;")
2179 v.stmt(self.n_block)
2181 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2182 var succ = v.send(v.get_property("succ", variable.mtype), [variable])
2184 v.assign(variable, succ)
2186 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2190 var cl = v.expr(self.n_expr, null)
2191 var it_meth = self.method_iterator
2192 assert it_meth != null
2193 var it = v.send(it_meth, [cl])
2196 var isok_meth = self.method_is_ok
2197 assert isok_meth != null
2198 var ok = v.send(isok_meth, [it])
2200 v.add("if(!{ok}) break;")
2201 if self.variables.length == 1 then
2202 var item_meth = self.method_item
2203 assert item_meth != null
2204 var i = v.send(item_meth, [it])
2206 v.assign(v.variable(variables.first), i)
2207 else if self.variables.length == 2 then
2208 var key_meth = self.method_key
2209 assert key_meth != null
2210 var i = v.send(key_meth, [it])
2212 v.assign(v.variable(variables[0]), i)
2213 var item_meth = self.method_item
2214 assert item_meth != null
2215 i = v.send(item_meth, [it])
2217 v.assign(v.variable(variables[1]), i)
2221 v.stmt(self.n_block)
2222 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2223 var next_meth = self.method_next
2224 assert next_meth != null
2225 v.send(next_meth, [it])
2227 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2231 redef class AAssertExpr
2234 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return
2236 var cond = v.expr_bool(self.n_expr)
2237 v.add("if (!{cond}) \{")
2241 v.add_abort("Assert '{nid.text}' failed")
2243 v.add_abort("Assert failed")
2252 var res = v.new_var(self.mtype.as(not null))
2253 var i1 = v.expr_bool(self.n_expr)
2254 v.add("if ({i1}) \{")
2257 var i2 = v.expr_bool(self.n_expr2)
2258 v.add("{res} = {i2};")
2264 redef class AImpliesExpr
2267 var res = v.new_var(self.mtype.as(not null))
2268 var i1 = v.expr_bool(self.n_expr)
2269 v.add("if (!{i1}) \{")
2272 var i2 = v.expr_bool(self.n_expr2)
2273 v.add("{res} = {i2};")
2279 redef class AAndExpr
2282 var res = v.new_var(self.mtype.as(not null))
2283 var i1 = v.expr_bool(self.n_expr)
2284 v.add("if (!{i1}) \{")
2287 var i2 = v.expr_bool(self.n_expr2)
2288 v.add("{res} = {i2};")
2294 redef class ANotExpr
2297 var cond = v.expr_bool(self.n_expr)
2298 return v.new_expr("!{cond}", self.mtype.as(not null))
2302 redef class AOrElseExpr
2305 var res = v.new_var(self.mtype.as(not null))
2306 var i1 = v.expr(self.n_expr, null)
2307 v.add("if ({i1}!=NULL) \{")
2310 var i2 = v.expr(self.n_expr2, null)
2317 redef class AIntExpr
2318 redef fun expr(v) do return v.new_expr("{self.value.to_s}", self.mtype.as(not null))
2321 redef class AFloatExpr
2322 redef fun expr(v) do return v.new_expr("{self.n_float.text}", self.mtype.as(not null)) # FIXME use value, not n_float
2325 redef class ACharExpr
2326 redef fun expr(v) do return v.new_expr("'{self.value.to_s.escape_to_c}'", self.mtype.as(not null))
2329 redef class AArrayExpr
2332 var mtype = self.mtype.as(MClassType).arguments.first
2333 var array = new Array[RuntimeVariable]
2334 for nexpr in self.n_exprs.n_exprs do
2335 var i = v.expr(nexpr, mtype)
2338 return v.array_instance(array, mtype)
2342 redef class AStringFormExpr
2343 redef fun expr(v) do return v.string_instance(self.value.as(not null))
2346 redef class ASuperstringExpr
2349 var array = new Array[RuntimeVariable]
2350 for ne in self.n_exprs do
2351 if ne isa AStringFormExpr and ne.value == "" then continue # skip empty sub-strings
2352 var i = v.expr(ne, null)
2355 var a = v.array_instance(array, v.object_type)
2356 var res = v.send(v.get_property("to_s", a.mtype), [a])
2361 redef class ACrangeExpr
2364 var i1 = v.expr(self.n_expr, null)
2365 var i2 = v.expr(self.n_expr2, null)
2366 var mtype = self.mtype.as(MClassType)
2367 var res = v.init_instance(mtype)
2368 var it = v.send(v.get_property("init", res.mtype), [res, i1, i2])
2373 redef class AOrangeExpr
2376 var i1 = v.expr(self.n_expr, null)
2377 var i2 = v.expr(self.n_expr2, null)
2378 var mtype = self.mtype.as(MClassType)
2379 var res = v.init_instance(mtype)
2380 var it = v.send(v.get_property("without_last", res.mtype), [res, i1, i2])
2385 redef class ATrueExpr
2386 redef fun expr(v) do return v.new_expr("1", self.mtype.as(not null))
2389 redef class AFalseExpr
2390 redef fun expr(v) do return v.new_expr("0", self.mtype.as(not null))
2393 redef class ANullExpr
2394 redef fun expr(v) do return v.new_expr("NULL", self.mtype.as(not null))
2397 redef class AIsaExpr
2400 var i = v.expr(self.n_expr, null)
2401 return v.type_test(i, self.cast_type.as(not null), "isa")
2405 redef class AAsCastExpr
2408 var i = v.expr(self.n_expr, null)
2409 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2411 v.add_cast(i, self.mtype.as(not null), "as")
2416 redef class AAsNotnullExpr
2419 var i = v.expr(self.n_expr, null)
2420 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2422 v.add("if ({i} == NULL) \{")
2423 v.add_abort("Cast failed")
2429 redef class AParExpr
2430 redef fun expr(v) do return v.expr(self.n_expr, null)
2433 redef class AOnceExpr
2436 var mtype = self.mtype.as(not null)
2437 var name = v.get_name("varonce")
2438 var guard = v.get_name(name + "_guard")
2439 v.add_decl("static {mtype.ctype} {name};")
2440 v.add_decl("static int {guard};")
2441 var res = v.new_var(mtype)
2442 v.add("if ({guard}) \{")
2443 v.add("{res} = {name};")
2445 var i = v.expr(self.n_expr, mtype)
2446 v.add("{res} = {i};")
2447 v.add("{name} = {res};")
2448 v.add("{guard} = 1;")
2454 redef class ASendExpr
2457 var recv = v.expr(self.n_expr, null)
2459 for a in self.raw_arguments.as(not null) do
2460 args.add(v.expr(a, null))
2462 return v.compile_callsite(self.callsite.as(not null), args)
2466 redef class ASendReassignFormExpr
2469 var recv = v.expr(self.n_expr, null)
2471 for a in self.raw_arguments.as(not null) do
2472 args.add(v.expr(a, null))
2474 var value = v.expr(self.n_value, null)
2476 var left = v.compile_callsite(self.callsite.as(not null), args)
2479 var res = v.compile_callsite(self.reassign_callsite.as(not null), [left, value])
2483 v.compile_callsite(self.write_callsite.as(not null), args)
2487 redef class ASuperExpr
2490 var recv = v.frame.arguments.first
2492 for a in self.n_args.n_exprs do
2493 args.add(v.expr(a, null))
2496 var callsite = self.callsite
2497 if callsite != null then
2498 # Add additionnals arguments for the super init call
2499 if args.length == 1 then
2500 for i in [0..callsite.mproperty.intro.msignature.arity[ do
2501 args.add(v.frame.arguments[i+1])
2505 var res = v.compile_callsite(callsite, args)
2509 if args.length == 1 then
2510 args = v.frame.arguments
2513 # stantard call-next-method
2514 return v.supercall(mpropdef.as(not null), recv.mtype.as(MClassType), args)
2518 redef class ANewExpr
2521 var mtype = self.mtype.as(MClassType)
2523 var ctype = mtype.ctype
2524 if ctype == "val*" then
2525 recv = v.init_instance(mtype)
2526 else if ctype == "void*" then
2527 recv = v.new_expr("NULL/*special!*/", mtype)
2529 debug("cannot new {mtype}")
2533 for a in self.n_args.n_exprs do
2534 args.add(v.expr(a, null))
2536 var res2 = v.compile_callsite(self.callsite.as(not null), args)
2537 if res2 != null then
2538 #self.debug("got {res2} from {mproperty}. drop {recv}")
2545 redef class AAttrExpr
2548 var recv = v.expr(self.n_expr, null)
2549 var mproperty = self.mproperty.as(not null)
2550 return v.read_attribute(mproperty, recv)
2554 redef class AAttrAssignExpr
2557 var recv = v.expr(self.n_expr, null)
2558 var i = v.expr(self.n_value, null)
2559 var mproperty = self.mproperty.as(not null)
2560 v.write_attribute(mproperty, recv, i)
2564 redef class AAttrReassignExpr
2567 var recv = v.expr(self.n_expr, null)
2568 var value = v.expr(self.n_value, null)
2569 var mproperty = self.mproperty.as(not null)
2570 var attr = v.read_attribute(mproperty, recv)
2571 var res = v.compile_callsite(self.reassign_callsite.as(not null), [attr, value])
2573 v.write_attribute(mproperty, recv, res)
2577 redef class AIssetAttrExpr
2580 var recv = v.expr(self.n_expr, null)
2581 var mproperty = self.mproperty.as(not null)
2582 return v.isset_attribute(mproperty, recv)
2586 redef class ADebugTypeExpr
2595 redef class Array[E]
2596 # Return a new `Array` with the elements only contened in self and not in `o
`
2597 fun -(o: Array[E]): Array[E] do
2598 var res = new Array[E]
2599 for e in self do if not o.has(e) then res.add(e)
2605 # All `MProperty` associated to all `MClassDef` of `mclass
`
2606 fun properties(mclass: MClass): Set[MProperty] do
2607 if not self.properties_cache.has_key(mclass) then
2608 var properties = new HashSet[MProperty]
2609 var parents = new Array[MClass]
2610 if self.flatten_mclass_hierarchy.has(mclass) then
2611 parents.add_all(mclass.in_hierarchy(self).direct_greaters)
2613 for parent in parents do
2614 properties.add_all(self.properties(parent))
2616 for mclassdef in mclass.mclassdefs do
2617 for mprop in mclassdef.intro_mproperties do
2618 properties.add(mprop)
2621 self.properties_cache[mclass] = properties
2623 return properties_cache[mclass]
2625 private var properties_cache: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
2629 # Does this module use the legacy native interface?
2630 fun uses_legacy_ni: Bool is abstract
2632 # Write FFI results to file
2633 fun finalize_ffi(v: AbstractCompilerVisitor, modelbuilder: ModelBuilder) is abstract
2635 # Write nitni results to file
2636 fun finalize_nitni(v: AbstractCompilerVisitor) is abstract