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
26 # Add compiling options
27 redef class ToolContext
29 var opt_output
: OptionString = new OptionString("Output file", "-o", "--output")
31 var opt_no_cc
: OptionBool = new OptionBool("Do not invoke C compiler", "--no-cc")
33 var opt_cc_path
: OptionArray = new OptionArray("Set include path for C header files (may be used more than once)", "--cc-path")
35 var opt_make_flags
: OptionString = new OptionString("Additional options to make", "--make-flags")
37 var opt_compile_dir
: OptionString = new OptionString("Directory used to generate temporary files", "--compile-dir")
39 var opt_hardening
: OptionBool = new OptionBool("Generate contracts in the C code against bugs in the compiler", "--hardening")
41 var opt_no_shortcut_range
: OptionBool = new OptionBool("Always insantiate a range and its iterator on 'for' loops", "--no-shortcut-range")
42 # --no-check-covariance
43 var opt_no_check_covariance
: OptionBool = new OptionBool("Disable type tests of covariant parameters (dangerous)", "--no-check-covariance")
44 # --no-check-initialization
45 var opt_no_check_initialization
: OptionBool = new OptionBool("Disable isset tests at the end of constructors (dangerous)", "--no-check-initialization")
47 var opt_no_check_assert
: OptionBool = new OptionBool("Disable the evaluation of explicit 'assert' and 'as' (dangerous)", "--no-check-assert")
49 var opt_no_check_autocast
: OptionBool = new OptionBool("Disable implicit casts on unsafe expression usage (dangerous)", "--no-check-autocast")
51 var opt_no_check_other
: OptionBool = new OptionBool("Disable implicit tests: unset attribute, null receiver (dangerous)", "--no-check-other")
52 # --typing-test-metrics
53 var opt_typing_test_metrics
: OptionBool = new OptionBool("Enable static and dynamic count of all type tests", "--typing-test-metrics")
55 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")
56 # --stack-trace-C-to-Nit-name-binding
57 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")
62 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
)
63 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
)
64 self.option_context
.add_option
(self.opt_typing_test_metrics
)
65 self.option_context
.add_option
(self.opt_stacktrace
)
66 self.option_context
.add_option
(self.opt_no_stacktrace
)
70 redef class ModelBuilder
71 # The list of directories to search for included C headers (-I for C compilers)
72 # The list is initially set with :
73 # * the toolcontext --cc-path option
74 # * the NIT_CC_PATH environment variable
75 # * some heuristics including the NIT_DIR environment variable and the progname of the process
76 # Path can be added (or removed) by the client
77 var cc_paths
= new Array[String]
79 redef init(model
, toolcontext
)
83 # Look for the the Nit clib path
84 var path_env
= "NIT_DIR".environ
85 if not path_env
.is_empty
then
86 var libname
= "{path_env}/clib"
87 if libname
.file_exists
then cc_paths
.add
(libname
)
90 var libname
= "{sys.program_name.dirname}/../clib"
91 if libname
.file_exists
then cc_paths
.add
(libname
.simplify_path
)
93 if cc_paths
.is_empty
then
94 toolcontext
.error
(null, "Cannot determine the nit clib path. define envvar NIT_DIR.")
97 if toolcontext
.opt_no_stacktrace
.value
and toolcontext
.opt_stacktrace
.value
then
98 print
"Cannot use --nit-stacktrace when --no-stacktrace is activated"
102 # Add user defined cc_paths
103 cc_paths
.append
(toolcontext
.opt_cc_path
.value
)
105 path_env
= "NIT_CC_PATH".environ
106 if not path_env
.is_empty
then
107 cc_paths
.append
(path_env
.split_with
(':'))
110 var compile_dir
= toolcontext
.opt_compile_dir
.value
111 if compile_dir
== null then compile_dir
= ".nit_compile"
112 self.compile_dir
= compile_dir
115 # The compilation directory
116 var compile_dir
: String
118 protected fun write_and_make
(compiler
: AbstractCompiler)
120 var mainmodule
= compiler
.mainmodule
122 # Generate the .h and .c files
123 # A single C file regroups many compiled rumtime functions
124 # 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
126 self.toolcontext
.info
("*** WRITING C ***", 1)
130 var cfiles
= new Array[String]
131 write_files
(compiler
, compile_dir
, cfiles
)
133 # Generate the Makefile
135 write_makefile
(compiler
, compile_dir
, cfiles
)
138 self.toolcontext
.info
("*** END WRITING C: {time1-time0} ***", 2)
140 # Execute the Makefile
142 if self.toolcontext
.opt_no_cc
.value
then return
145 self.toolcontext
.info
("*** COMPILING C ***", 1)
147 compile_c_code
(compiler
, compile_dir
)
150 self.toolcontext
.info
("*** END COMPILING C: {time1-time0} ***", 2)
153 fun write_files
(compiler
: AbstractCompiler, compile_dir
: String, cfiles
: Array[String])
155 if self.toolcontext
.opt_stacktrace
.value
then compiler
.build_c_to_nit_bindings
157 # Add gc_choser.h to aditionnal bodies
158 var gc_chooser
= new ExternCFile("gc_chooser.c", "-DWITH_LIBGC")
159 compiler
.extern_bodies
.add
(gc_chooser
)
160 compiler
.files_to_copy
.add
"{cc_paths.first}/gc_chooser.c"
161 compiler
.files_to_copy
.add
"{cc_paths.first}/gc_chooser.h"
164 for m
in compiler
.mainmodule
.in_importation
.greaters
do if mmodule2nmodule
.keys
.has
(m
) then
165 var amodule
= mmodule2nmodule
[m
]
166 if m
.uses_ffi
or amodule
.uses_legacy_ni
then
167 compiler
.finalize_ffi_for_module
(amodule
)
171 # Copy original .[ch] files to compile_dir
172 for src
in compiler
.files_to_copy
do
173 var basename
= src
.basename
("")
174 var dst
= "{compile_dir}/{basename}"
178 var hfilename
= compiler
.header
.file
.name
+ ".h"
179 var hfilepath
= "{compile_dir}/{hfilename}"
180 var h
= new OFStream.open
(hfilepath
)
181 for l
in compiler
.header
.decl_lines
do
185 for l
in compiler
.header
.lines
do
191 for f
in compiler
.files
do
193 var hfile
: nullable OFStream = null
195 var cfilename
= "{f.name}.0.h"
196 var cfilepath
= "{compile_dir}/{cfilename}"
197 hfile
= new OFStream.open
(cfilepath
)
198 hfile
.write
"#include \"{hfilename}\
"\n"
199 for key
in f
.required_declarations
do
200 if not compiler
.provided_declarations
.has_key
(key
) then
201 print
"No provided declaration for {key}"
204 hfile
.write compiler
.provided_declarations
[key
]
208 var file
: nullable OFStream = null
209 for vis
in f
.writers
do
210 if vis
== compiler
.header
then continue
211 var total_lines
= vis
.lines
.length
+ vis
.decl_lines
.length
212 if total_lines
== 0 then continue
214 if file
== null or count
> 10000 then
216 if file
!= null then file
.close
217 cfilename
= "{f.name}.{i}.c"
218 cfilepath
= "{compile_dir}/{cfilename}"
219 self.toolcontext
.info
("new C source files to compile: {cfilepath}", 3)
220 cfiles
.add
(cfilename
)
221 file
= new OFStream.open
(cfilepath
)
222 file
.write
"#include \"{f.name}.0.h\
"\n"
225 for l
in vis
.decl_lines
do
229 for l
in vis
.lines
do
234 if file
!= null then file
.close
237 self.toolcontext
.info
("Total C source files to compile: {cfiles.length}", 2)
240 fun write_makefile
(compiler
: AbstractCompiler, compile_dir
: String, cfiles
: Array[String])
242 var mainmodule
= compiler
.mainmodule
244 var outname
= self.toolcontext
.opt_output
.value
245 if outname
== null then
246 outname
= "{mainmodule.name}"
249 var orig_dir
=".." # FIXME only works if `compile_dir` is a subdirectory of cwd
250 var outpath
= orig_dir
.join_path
(outname
).simplify_path
251 var makename
= "{mainmodule.name}.mk"
252 var makepath
= "{compile_dir}/{makename}"
253 var makefile
= new OFStream.open
(makepath
)
257 cc_includes
+= " -I \"" + p + "\
""
260 var linker_options
= new HashSet[String]
261 for m
in mainmodule
.in_importation
.greaters
do if mmodule2nmodule
.keys
.has
(m
) then
262 var amod
= mmodule2nmodule
[m
]
263 linker_options
.add
(amod
.c_linker_options
)
266 if not toolcontext
.opt_no_stacktrace
.value
then linker_options
.add
("-lunwind")
268 makefile
.write
("CC = ccache cc\nCFLAGS = -g -O2\nCINCL = {cc_includes}\nLDFLAGS ?= \nLDLIBS ?= -lm -lgc {linker_options.join(" ")}\n\n")
269 makefile
.write
("all: {outpath}\n\n")
271 var ofiles
= new Array[String]
272 var dep_rules
= new Array[String]
273 # Compile each generated file
275 var o
= f
.strip_extension
(".c") + ".o"
276 makefile
.write
("{o}: {f}\n\t$(CC) $(CFLAGS) $(CINCL) -D NONITCNI -c -o {o} {f}\n\n")
281 # Compile each required extern body into a specific .o
282 for f
in compiler
.extern_bodies
do
283 if f
isa ExternCFile then
284 var basename
= f
.filename
.basename
(".c")
285 var o
= "{basename}.extern.o"
286 var ff
= f
.filename
.basename
("")
287 makefile
.write
("{o}: {ff}\n\t$(CC) $(CFLAGS) -D NONITCNI {f.cflags} -c -o {o} {ff}\n\n")
291 var o
= f
.makefile_rule_name
292 var ff
= f
.filename
.basename
("")
293 makefile
.write
("{o}: {ff}\n")
294 makefile
.write
("\t{f.makefile_rule_content}\n")
295 dep_rules
.add
(f
.makefile_rule_name
)
297 if f
isa ExternCppFile then ofiles
.add
(o
)
302 makefile
.write
("{outpath}: {ofiles.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath} {ofiles.join(" ")} $(LDLIBS)\n\n")
304 makefile
.write
("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n\n")
306 self.toolcontext
.info
("Generated makefile: {makepath}", 2)
309 fun compile_c_code
(compiler
: AbstractCompiler, compile_dir
: String)
311 var makename
= "{compiler.mainmodule.name}.mk" # FIXME duplicated from write_makefile
313 var makeflags
= self.toolcontext
.opt_make_flags
.value
314 if makeflags
== null then makeflags
= ""
315 self.toolcontext
.info
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags}", 2)
318 if self.toolcontext
.verbose_level
>= 3 then
319 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1")
321 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1 >/dev/null")
324 toolcontext
.error
(null, "make failed! Error code: {res}.")
329 # Singleton that store the knowledge about the compilation process
330 abstract class AbstractCompiler
331 type VISITOR: AbstractCompilerVisitor
333 # Table corresponding c_names to nit names (methods)
334 var names
= new HashMap[String, String]
336 # The main module of the program currently compiled
337 # Is assigned during the separate compilation
338 var mainmodule
: MModule writable
340 # The real main module of the program
341 var realmainmodule
: MModule
343 # The modeulbuilder used to know the model and the AST
344 var modelbuilder
: ModelBuilder protected writable
346 # Is hardening asked? (see --hardening)
347 fun hardening
: Bool do return self.modelbuilder
.toolcontext
.opt_hardening
.value
349 init(mainmodule
: MModule, modelbuilder
: ModelBuilder)
351 self.mainmodule
= mainmodule
352 self.realmainmodule
= mainmodule
353 self.modelbuilder
= modelbuilder
356 # Force the creation of a new file
357 # The point is to avoid contamination between must-be-compiled-separately files
358 fun new_file
(name
: String): CodeFile
360 var f
= new CodeFile(name
)
365 # The list of all associated files
366 # Used to generate .c files
367 var files
: List[CodeFile] = new List[CodeFile]
369 # Initialize a visitor specific for a compiler engine
370 fun new_visitor
: VISITOR is abstract
372 # Where global declaration are stored (the main .h)
373 var header
: CodeWriter writable
375 # Provide a declaration that can be requested (before or latter) by a visitor
376 fun provide_declaration
(key
: String, s
: String)
378 if self.provided_declarations
.has_key
(key
) then
379 assert self.provided_declarations
[key
] == s
381 self.provided_declarations
[key
] = s
384 private var provided_declarations
= new HashMap[String, String]
386 # Builds the .c and .h files to be used when generating a Stack Trace
387 # Binds the generated C function names to Nit function names
388 fun build_c_to_nit_bindings
390 var compile_dir
= modelbuilder
.compile_dir
392 var stream
= new OFStream.open
("{compile_dir}/C_fun_names")
393 stream
.write
("%\{\n#include \"c_functions_hash.h\"\n%\}\n")
394 stream
.write
("%define lookup-function-name get_nit_name\n")
395 stream
.write
("struct C_Nit_Names;\n")
397 stream
.write
("####\n")
398 for i
in names
.keys
do
400 stream
.write
(",\t\"")
401 stream.write(names[i])
404 stream
.write
("####\n")
408 stream
= new OFStream.open
("{compile_dir}/c_functions_hash.h")
409 stream
.write
("typedef struct C_Nit_Names\{char* name; char* nit_name;\}C_Nit_Names;\n")
410 stream
.write
("const struct C_Nit_Names* get_nit_name(register const char *str, register unsigned int len);\n")
413 var x
= new Process("gperf","{compile_dir}/C_fun_names","-t","-7","--output-file={compile_dir}/c_functions_hash.c","-C")
416 extern_bodies
.add
(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
420 # This method call compile_header_strucs method that has to be refined
421 fun compile_header
do
423 var toolctx
= modelbuilder
.toolcontext
424 self.header
.add_decl
("#include <stdlib.h>")
425 self.header
.add_decl
("#include <stdio.h>")
426 self.header
.add_decl
("#include <string.h>")
427 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
429 compile_header_structs
430 compile_nitni_structs
432 # Signal handler function prototype
433 self.header
.add_decl
("void show_backtrace(int);")
435 # Global variable used by intern methods
436 self.header
.add_decl
("extern int glob_argc;")
437 self.header
.add_decl
("extern char **glob_argv;")
438 self.header
.add_decl
("extern val *glob_sys;")
441 # Declaration of structures for live Nit types
442 protected fun compile_header_structs
is abstract
444 # Declaration of structures for nitni undelying the FFI
445 protected fun compile_nitni_structs
is abstract
447 # Generate the main C function.
449 # * allocate the Sys object if it exists
450 # * call init if is exists
451 # * call main if it exists
452 fun compile_main_function
454 var v
= self.new_visitor
455 if modelbuilder
.toolcontext
.opt_stacktrace
.value
then
456 v
.add_decl
("#include \"c_functions_hash
.h\
"")
458 v
.add_decl
("#include <signal.h>")
459 if not modelbuilder
.toolcontext
.opt_no_stacktrace
.value
then
460 v
.add_decl
("#define UNW_LOCAL_ONLY")
461 v
.add_decl
("#include <libunwind.h>")
463 v
.add_decl
("int glob_argc;")
464 v
.add_decl
("char **glob_argv;")
465 v
.add_decl
("val *glob_sys;")
467 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
468 for tag
in count_type_test_tags
do
469 v
.add_decl
("long count_type_test_resolved_{tag};")
470 v
.add_decl
("long count_type_test_unresolved_{tag};")
471 v
.add_decl
("long count_type_test_skipped_{tag};")
472 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
473 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
474 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
478 v
.add_decl
("void sig_handler(int signo)\{")
479 v
.add_decl
("printf(\"Caught signal
: %s\\n\
", strsignal(signo));")
480 v
.add_decl
("show_backtrace(signo);")
483 v
.add_decl
("void show_backtrace (int signo) \{")
484 if not modelbuilder
.toolcontext
.opt_no_stacktrace
.value
then
485 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
486 v
.add_decl
("unw_cursor_t cursor;")
487 v
.add_decl
("if(opt==NULL)\{")
488 v
.add_decl
("unw_context_t uc;")
489 v
.add_decl
("unw_word_t ip;")
490 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
491 v
.add_decl
("unw_getcontext(&uc);")
492 v
.add_decl
("unw_init_local(&cursor, &uc);")
493 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
494 v
.add_decl
("printf(\"-- Stack Trace ------------------------------\\n\
");")
495 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
496 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
497 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
498 if modelbuilder
.toolcontext
.opt_stacktrace
.value
then
499 v
.add_decl
(" const C_Nit_Names* recv = get_nit_name(procname, strlen(procname));")
500 v
.add_decl
(" if (recv != 0)\{")
501 v
.add_decl
(" printf(\"` %s\\n\", recv->nit_name);")
502 v.add_decl(" \}else\{")
503 v.add_decl(" printf(\"` %s\\n\
", procname);")
506 v
.add_decl
(" printf(\"` %s \\n\",procname);")
509 v.add_decl("printf(\"-------------------------------------------------\\n\");")
510 v.add_decl("free(procname);")
513 v.add_decl("exit(signo);")
516 v.add_decl("int main(int argc, char** argv) \{")
518 v.add("signal(SIGABRT, sig_handler);")
519 v.add("signal(SIGFPE, sig_handler);")
520 v.add("signal(SIGILL, sig_handler);")
521 v.add("signal(SIGINT, sig_handler);")
522 v.add("signal(SIGTERM, sig_handler);")
523 v.add("signal(SIGSEGV, sig_handler);")
525 v.add("glob_argc = argc; glob_argv = argv;")
526 v.add("initialize_gc_option();")
527 var main_type = mainmodule.sys_type
528 if main_type != null then
529 var mainmodule = v.compiler.mainmodule
530 var glob_sys = v.init_instance(main_type)
531 v.add("glob_sys = {glob_sys};")
532 var main_init = mainmodule.try_get_primitive_method("init", main_type.mclass)
533 if main_init != null then
534 v.send(main_init, [glob_sys])
536 var main_method = mainmodule.try_get_primitive_method("main", main_type.mclass)
537 if main_method != null then
538 v.send(main_method, [glob_sys])
542 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
543 v.add_decl("long count_type_test_resolved_total = 0;")
544 v.add_decl("long count_type_test_unresolved_total = 0;")
545 v.add_decl("long count_type_test_skipped_total = 0;")
546 v.add_decl("long count_type_test_total_total = 0;")
547 for tag in count_type_test_tags do
548 v.add_decl("long count_type_test_total_{tag};")
549 v.add("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
550 v.add("count_type_test_resolved_total += count_type_test_resolved_{tag};")
551 v.add("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
552 v.add("count_type_test_skipped_total += count_type_test_skipped_{tag};")
553 v.add("count_type_test_total_total += count_type_test_total_{tag};")
555 v.add("printf(\"# dynamic count_type_test: total %l\\n\");")
556 v.add("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\");")
557 var tags = count_type_test_tags.to_a
560 v.add("printf(\"{tag}\");")
561 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
562 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
563 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
564 v.add("printf(\"\\t%ld (%.2f%%)\\n\", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
572 # List of additional files required to compile (FFI)
573 var extern_bodies = new Array[ExternFile]
575 # List of source files to copy over to the compile dir
576 var files_to_copy = new Array[String]
578 # This is used to avoid adding an extern file more than once
579 private var seen_extern = new ArraySet[String]
581 # Generate code that initialize the attributes on a new instance
582 fun generate_init_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
584 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
585 self.mainmodule.linearize_mclassdefs(cds)
587 var n = self.modelbuilder.mclassdef2nclassdef[cd]
588 for npropdef in n.n_propdefs do
589 if npropdef isa AAttrPropdef then
590 npropdef.init_expr(v, recv)
596 # Generate code that check if an attribute is correctly initialized
597 fun generate_check_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
599 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
600 self.mainmodule.linearize_mclassdefs(cds)
602 var n = self.modelbuilder.mclassdef2nclassdef[cd]
603 for npropdef in n.n_propdefs do
604 if npropdef isa AAttrPropdef then
605 npropdef.check_expr(v, recv)
613 var count_type_test_tags: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
614 var count_type_test_resolved: HashMap[String, Int] = init_count_type_test_tags
615 var count_type_test_unresolved: HashMap[String, Int] = init_count_type_test_tags
616 var count_type_test_skipped: HashMap[String, Int] = init_count_type_test_tags
618 protected fun init_count_type_test_tags: HashMap[String, Int]
620 var res = new HashMap[String, Int]
621 for tag in count_type_test_tags do
627 # Display stats about compilation process
629 # * type tests against resolved types (`x
isa Collection[Animal]`)
630 # * type tests against unresolved types (`x
isa Collection[E
]`)
631 # * type tests skipped
636 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
637 print "# static count_type_test"
638 print "\tresolved:\tunresolved\tskipped\ttotal"
639 var count_type_test_total = init_count_type_test_tags
640 count_type_test_resolved["total"] = 0
641 count_type_test_unresolved["total"] = 0
642 count_type_test_skipped["total"] = 0
643 count_type_test_total["total"] = 0
644 for tag in count_type_test_tags do
645 count_type_test_total[tag] = count_type_test_resolved[tag] + count_type_test_unresolved[tag] + count_type_test_skipped[tag]
646 count_type_test_resolved["total"] += count_type_test_resolved[tag]
647 count_type_test_unresolved["total"] += count_type_test_unresolved[tag]
648 count_type_test_skipped["total"] += count_type_test_skipped[tag]
649 count_type_test_total["total"] += count_type_test_total[tag]
651 var count_type_test = count_type_test_total["total"]
652 var tags = count_type_test_tags.to_a
656 printn "\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
657 printn "\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
658 printn "\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
659 printn "\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
666 # Avoid division by zero by returning the string "n/a"
667 fun div(a,b:Int):String
669 if b == 0 then return "n/a"
670 return ((a*10000/b).to_f / 100.0).to_precision(2)
673 fun finalize_ffi_for_module(nmodule: AModule)
675 var visitor = new_visitor
676 nmodule.finalize_ffi(visitor, modelbuilder)
677 nmodule.finalize_nitni(visitor)
680 # Does this compiler support the FFI?
681 fun supports_ffi: Bool do return false
684 # A file unit (may be more than one file if
685 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
688 var writers = new Array[CodeWriter]
689 var required_declarations = new HashSet[String]
692 # Where to store generated lines
695 var lines: List[String] = new List[String]
696 var decl_lines: List[String] = new List[String]
698 # Add a line in the main part of the generated C
699 fun add(s: String) do self.lines.add(s)
702 # (used for local or global declaration)
703 fun add_decl(s: String) do self.decl_lines.add(s)
708 file.writers.add(self)
712 # A visitor on the AST of property definition that generate the C code.
713 abstract class AbstractCompilerVisitor
715 type COMPILER: AbstractCompiler
717 # The associated compiler
718 var compiler: COMPILER
720 # The current visited AST node
721 var current_node: nullable ANode writable = null
723 # The current `Frame`
724 var frame: nullable Frame writable
726 # Alias for self.compiler.mainmodule.object_type
727 fun object_type: MClassType do return self.compiler.mainmodule.object_type
729 # Alias for self.compiler.mainmodule.bool_type
730 fun bool_type: MClassType do return self.compiler.mainmodule.bool_type
732 var writer: CodeWriter
734 init(compiler: COMPILER)
736 self.compiler = compiler
737 self.writer = new CodeWriter(compiler.files.last)
740 # Force to get the primitive class named `name
` or abort
741 fun get_class(name: String): MClass do return self.compiler.mainmodule.get_primitive_class(name)
743 # Force to get the primitive property named `name
` in the instance `recv
` or abort
744 fun get_property(name: String, recv: MType): MMethod
746 assert recv isa MClassType
747 return self.compiler.modelbuilder.force_get_primitive_method(self.current_node.as(not null), name, recv.mclass, self.compiler.mainmodule)
750 fun compile_callsite(callsite: CallSite, args: Array[RuntimeVariable]): nullable RuntimeVariable
752 return self.send(callsite.mproperty, args)
755 fun calloc_array(ret_type: MType, arguments: Array[RuntimeVariable]) is abstract
757 fun native_array_def(pname: String, ret_type: nullable MType, arguments: Array[RuntimeVariable]) is abstract
759 # Transform varargs, in raw arguments, into a single argument of type `Array`
760 # Note: this method modify the given `args
`
761 # If there is no vararg, then `args
` is not modified.
762 fun varargize(mpropdef: MPropDef, msignature: MSignature, args: Array[RuntimeVariable])
764 var recv = args.first
765 var vararg_rank = msignature.vararg_rank
766 if vararg_rank >= 0 then
767 assert args.length >= msignature.arity + 1 # because of self
769 args = new Array[RuntimeVariable]
771 args.add(rawargs.first) # recv
773 for i in [0..vararg_rank[ do
774 args.add(rawargs[i+1])
777 var vararg_lastrank = vararg_rank + rawargs.length-1-msignature.arity
778 var vararg = new Array[RuntimeVariable]
779 for i in [vararg_rank..vararg_lastrank] do
780 vararg.add(rawargs[i+1])
783 var elttype = msignature.mparameters[vararg_rank].mtype
784 args.add(self.vararg_instance(mpropdef, recv, vararg, elttype))
786 for i in [vararg_lastrank+1..rawargs.length-1[ do
787 args.add(rawargs[i+1])
790 rawargs.add_all(args)
796 # Anchor a type to the main module and the current receiver
797 fun anchor(mtype: MType): MType
799 if not mtype.need_anchor then return mtype
800 return mtype.anchor_to(self.compiler.mainmodule, self.frame.receiver)
803 fun resolve_for(mtype: MType, recv: RuntimeVariable): MType
805 if not mtype.need_anchor then return mtype
806 return mtype.resolve_for(recv.mcasttype, self.frame.receiver, self.compiler.mainmodule, true)
809 # Unsafely cast a value to a new type
810 # ie the result share the same C variable but my have a different mcasttype
811 # NOTE: if the adaptation is useless then `value
` is returned as it.
812 # ENSURE: `result
.name
== value
.name
`
813 fun autoadapt(value: RuntimeVariable, mtype: MType): RuntimeVariable
815 mtype = self.anchor(mtype)
816 var valmtype = value.mcasttype
817 if valmtype.is_subtype(self.compiler.mainmodule, null, mtype) then
821 if valmtype isa MNullableType and valmtype.mtype.is_subtype(self.compiler.mainmodule, null, mtype) then
822 var res = new RuntimeVariable(value.name, valmtype, valmtype.mtype)
825 var res = new RuntimeVariable(value.name, valmtype, mtype)
830 # Generate a super call from a method definition
831 fun supercall(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
833 fun adapt_signature(m: MMethodDef, args: Array[RuntimeVariable]) is abstract
835 # Box or unbox a value to another type iff a C type conversion is needed
836 # ENSURE: `result
.mtype
.ctype
== mtype
.ctype
`
837 fun autobox(value: RuntimeVariable, mtype: MType): RuntimeVariable is abstract
839 # Generate a polymorphic subtype test
840 fun type_test(value: RuntimeVariable, mtype: MType, tag: String): RuntimeVariable is abstract
842 # Generate the code required to dynamically check if 2 objects share the same runtime type
843 fun is_same_type_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
845 # Generate a Nit "is" for two runtime_variables
846 fun equal_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
850 # Generate a static call on a method definition
851 fun call(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
853 # Generate a polymorphic send for the method `m
` and the arguments `args
`
854 fun send(m: MMethod, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
856 # Generate a monomorphic send for the method `m
`, the type `t
` and the arguments `args
`
857 fun monomorphic_send(m: MMethod, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
859 assert t isa MClassType
860 var propdef = m.lookup_first_definition(self.compiler.mainmodule, t)
861 return self.call(propdef, t, args)
864 # Generate a monomorphic super send from the method `m
`, the type `t
` and the arguments `args
`
865 fun monomorphic_super_send(m: MMethodDef, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
867 assert t isa MClassType
868 m = m.lookup_next_definition(self.compiler.mainmodule, t)
869 return self.call(m, t, args)
872 # Attributes handling
874 # Generate a polymorphic attribute is_set test
875 fun isset_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
877 # Generate a polymorphic attribute read
878 fun read_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
880 # Generate a polymorphic attribute write
881 fun write_attribute(a: MAttribute, recv: RuntimeVariable, value: RuntimeVariable) is abstract
885 # Add a check and an abort for a null reciever if needed
886 fun check_recv_notnull(recv: RuntimeVariable)
888 if self.compiler.modelbuilder.toolcontext.opt_no_check_other.value then return
890 var maybenull = recv.mcasttype isa MNullableType or recv.mcasttype isa MNullType
892 self.add("if ({recv} == NULL) \{")
893 self.add_abort("Receiver is null")
900 private var names: HashSet[String] = new HashSet[String]
901 private var last: Int = 0
903 # Return a new name based on `s
` and unique in the visitor
904 fun get_name(s: String): String
906 if not self.names.has(s) then
910 var i = self.last + 1
913 if not self.names.has(s2) then
922 # Return an unique and stable identifier associated with an escapemark
923 fun escapemark_name(e: nullable EscapeMark): String
926 if escapemark_names.has_key(e) then return escapemark_names[e]
928 if name == null then name = "label"
929 name = get_name(name)
930 escapemark_names[e] = name
934 private var escapemark_names = new HashMap[EscapeMark, String]
936 # Return a "const char*" variable associated to the classname of the dynamic type of an object
937 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
938 fun class_name_string(value: RuntimeVariable): String is abstract
942 protected var variables: HashMap[Variable, RuntimeVariable] = new HashMap[Variable, RuntimeVariable]
944 # Return the local runtime_variable associated to a Nit local variable
945 fun variable(variable: Variable): RuntimeVariable
947 if self.variables.has_key(variable) then
948 return self.variables[variable]
950 var name = self.get_name("var_{variable.name}")
951 var mtype = variable.declared_type.as(not null)
952 mtype = self.anchor(mtype)
953 var res = new RuntimeVariable(name, mtype, mtype)
954 self.add_decl("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
955 self.variables[variable] = res
960 # Return a new uninitialized local runtime_variable
961 fun new_var(mtype: MType): RuntimeVariable
963 mtype = self.anchor(mtype)
964 var name = self.get_name("var")
965 var res = new RuntimeVariable(name, mtype, mtype)
966 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
970 # Return a new uninitialized named runtime_variable
971 fun new_named_var(mtype: MType, name: String): RuntimeVariable
973 mtype = self.anchor(mtype)
974 var res = new RuntimeVariable(name, mtype, mtype)
975 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
979 # Correctly assign a left and a right value
980 # Boxing and unboxing is performed if required
981 fun assign(left, right: RuntimeVariable)
983 right = self.autobox(right, left.mtype)
984 self.add("{left} = {right};")
989 # Generate a alloc-instance + init-attributes
990 fun init_instance(mtype: MClassType): RuntimeVariable is abstract
992 # Generate an integer value
993 fun int_instance(value: Int): RuntimeVariable
995 var res = self.new_var(self.get_class("Int").mclass_type)
996 self.add("{res} = {value};")
1000 # Generate a string value
1001 fun string_instance(string: String): RuntimeVariable
1003 var mtype = self.get_class("String").mclass_type
1004 var name = self.get_name("varonce")
1005 self.add_decl("static {mtype.ctype} {name};")
1006 var res = self.new_var(mtype)
1007 self.add("if ({name}) \{")
1008 self.add("{res} = {name};")
1009 self.add("\} else \{")
1010 var native_mtype = self.get_class("NativeString").mclass_type
1011 var nat = self.new_var(native_mtype)
1012 self.add("{nat} = \"{string.escape_to_c}\";")
1013 var length = self.int_instance(string.length)
1014 self.add("{res} = {self.send(self.get_property("to_s_with_length", native_mtype), [nat, length]).as(not null)};")
1015 self.add("{name} = {res};")
1020 # Generate an array value
1021 fun array_instance(array: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1023 # Get an instance of a array for a vararg
1024 fun vararg_instance(mpropdef: MPropDef, recv: RuntimeVariable, varargs: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1028 # Add a line in the main part of the generated C
1029 fun add(s: String) do self.writer.lines.add(s)
1032 # (used for local or global declaration)
1033 fun add_decl(s: String) do self.writer.decl_lines.add(s)
1035 # Request the presence of a global declaration
1036 fun require_declaration(key: String)
1038 self.writer.file.required_declarations.add(key)
1041 # Add a declaration in the local-header
1042 # The declaration is ensured to be present once
1043 fun declare_once(s: String)
1045 self.compiler.provide_declaration(s, s)
1046 self.require_declaration(s)
1049 # look for a needed .h and .c file for a given .nit source-file
1050 # FIXME: bad API, parameter should be a `MModule`, not its source-file
1051 fun add_extern(file: String)
1053 file = file.strip_extension(".nit")
1054 var tryfile = file + ".nit.h"
1055 if tryfile.file_exists then
1056 self.declare_once("#include \"{tryfile.basename("")}\"")
1057 self.compiler.files_to_copy.add(tryfile)
1059 tryfile = file + "_nit.h"
1060 if tryfile.file_exists then
1061 self.declare_once("#include \"{tryfile.basename("")}\"")
1062 self.compiler.files_to_copy.add(tryfile)
1065 if self.compiler.seen_extern.has(file) then return
1066 self.compiler.seen_extern.add(file)
1067 tryfile = file + ".nit.c"
1068 if not tryfile.file_exists then
1069 tryfile = file + "_nit.c"
1070 if not tryfile.file_exists then return
1072 var f = new ExternCFile(tryfile.basename(""), "")
1073 self.compiler.extern_bodies.add(f)
1074 self.compiler.files_to_copy.add(tryfile)
1077 # Return a new local runtime_variable initialized with the C expression `cexpr
`.
1078 fun new_expr(cexpr: String, mtype: MType): RuntimeVariable
1080 var res = new_var(mtype)
1081 self.add("{res} = {cexpr};")
1085 # Generate generic abort
1086 # used by aborts, asserts, casts, etc.
1087 fun add_abort(message: String)
1089 self.add("fprintf(stderr, \"Runtime error: %s\", \"{message.escape_to_c}\");")
1095 if self.current_node != null and self.current_node.location.file != null then
1096 self.add("fprintf(stderr, \" (%s:%d)\\n\", \"{self.current_node.location.file.filename.escape_to_c}\", {current_node.location.line_start});")
1098 self.add("fprintf(stderr, \"\\n\");")
1100 self.add("show_backtrace(1);")
1103 # Add a dynamic cast
1104 fun add_cast(value: RuntimeVariable, mtype: MType, tag: String)
1106 var res = self.type_test(value, mtype, tag)
1107 self.add("if (!{res}) \{")
1108 var cn = self.class_name_string(value)
1109 self.add("fprintf(stderr, \"Runtime error: Cast failed. Expected `%s
`, got `%s
`\", \"{mtype.to_s.escape_to_c}\", {cn});")
1114 # Generate a return with the value `s
`
1115 fun ret(s: RuntimeVariable)
1117 self.assign(self.frame.returnvar.as(not null), s)
1118 self.add("goto {self.frame.returnlabel.as(not null)};")
1121 # Compile a statement (if any)
1122 fun stmt(nexpr: nullable AExpr)
1124 if nexpr == null then return
1125 var old = self.current_node
1126 self.current_node = nexpr
1128 self.current_node = old
1131 # Compile an expression an return its result
1132 # `mtype
` is the expected return type, pass null if no specific type is expected.
1133 fun expr(nexpr: AExpr, mtype: nullable MType): RuntimeVariable
1135 var old = self.current_node
1136 self.current_node = nexpr
1137 var res = nexpr.expr(self).as(not null)
1138 if mtype != null then
1139 mtype = self.anchor(mtype)
1140 res = self.autobox(res, mtype)
1142 res = autoadapt(res, nexpr.mtype.as(not null))
1143 var implicit_cast_to = nexpr.implicit_cast_to
1144 if implicit_cast_to != null and not self.compiler.modelbuilder.toolcontext.opt_no_check_autocast.value then
1145 add_cast(res, implicit_cast_to, "auto")
1146 res = autoadapt(res, implicit_cast_to)
1148 self.current_node = old
1152 # Alias for `self.expr
(nexpr
, self.bool_type
)`
1153 fun expr_bool(nexpr: AExpr): RuntimeVariable do return expr(nexpr, bool_type)
1155 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1156 fun debug(message: String)
1158 var node = self.current_node
1159 if node == null then
1160 print "?: {message}"
1164 self.add("/* DEBUG: {message} */")
1168 # A C function associated to a Nit method
1169 # Because of customization, a given Nit method can be compiler more that once
1170 abstract class AbstractRuntimeFunction
1172 type COMPILER: AbstractCompiler
1173 type VISITOR: AbstractCompilerVisitor
1175 # The associated Nit method
1176 var mmethoddef: MMethodDef
1178 # The mangled c name of the runtime_function
1179 # Subclasses should redefine `build_c_name
` instead
1182 var res = self.c_name_cache
1183 if res != null then return res
1184 res = self.build_c_name
1185 self.c_name_cache = res
1189 # Non cached version of `c_name
`
1190 protected fun build_c_name: String is abstract
1192 protected var c_name_cache: nullable String writable = null
1194 # Implements a call of the runtime_function
1195 # May inline the body or generate a C function call
1196 fun call(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1198 # Generate the code for the `AbstractRuntimeFunction`
1199 # Warning: compile more than once compilation makes CC unhappy
1200 fun compile_to_c(compiler: COMPILER) is abstract
1203 # A runtime variable hold a runtime value in C.
1204 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1206 # 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.
1207 class RuntimeVariable
1208 # The name of the variable in the C code
1211 # The static type of the variable (as declard in C)
1214 # The current casted type of the variable (as known in Nit)
1215 var mcasttype: MType writable
1217 # If the variable exaclty a mcasttype?
1218 # false (usual value) means that the variable is a mcasttype or a subtype.
1219 var is_exact: Bool writable = false
1221 init(name: String, mtype: MType, mcasttype: MType)
1225 self.mcasttype = mcasttype
1226 assert not mtype.need_anchor
1227 assert not mcasttype.need_anchor
1230 redef fun to_s do return name
1235 if self.is_exact then
1236 exact_str = " exact"
1241 if self.mtype == self.mcasttype then
1242 type_str = "{mtype}{exact_str}"
1244 type_str = "{mtype}({mcasttype}{exact_str})"
1246 return "<{name}:{type_str}>"
1250 # A frame correspond to a visited property in a `GlobalCompilerVisitor`
1253 type VISITOR: AbstractCompilerVisitor
1255 # The associated visitor
1256 var visitor: VISITOR
1258 # The executed property.
1259 # A Method in case of a call, an attribute in case of a default initialization.
1260 var mpropdef: MPropDef
1262 # The static type of the receiver
1263 var receiver: MClassType
1265 # Arguments of the method (the first is the receiver)
1266 var arguments: Array[RuntimeVariable]
1268 # The runtime_variable associated to the return (in a function)
1269 var returnvar: nullable RuntimeVariable writable = null
1271 # The label at the end of the property
1272 var returnlabel: nullable String writable = null
1276 # Return the C type associated to a given Nit static type
1277 fun ctype: String do return "val*"
1279 fun ctypename: String do return "val"
1281 # Return the name of the C structure associated to a Nit live type
1282 fun c_name: String is abstract
1283 protected var c_name_cache: nullable String protected writable
1286 redef class MClassType
1289 var res = self.c_name_cache
1290 if res != null then return res
1291 res = "{mclass.intro_mmodule.name.to_cmangle}__{mclass.name.to_cmangle}"
1292 self.c_name_cache = res
1296 redef fun ctype: String
1298 if mclass.name == "Int" then
1300 else if mclass.name == "Bool" then
1302 else if mclass.name == "Char" then
1304 else if mclass.name == "Float" then
1306 else if mclass.name == "NativeString" then
1308 else if mclass.name == "NativeArray" then
1310 else if mclass.kind == extern_kind then
1317 redef fun ctypename: String
1319 if mclass.name == "Int" then
1321 else if mclass.name == "Bool" then
1323 else if mclass.name == "Char" then
1325 else if mclass.name == "Float" then
1327 else if mclass.name == "NativeString" then
1329 else if mclass.name == "NativeArray" then
1330 #return "{self.arguments.first.ctype}*"
1332 else if mclass.kind == extern_kind then
1340 redef class MGenericType
1343 var res = self.c_name_cache
1344 if res != null then return res
1346 for t in self.arguments do
1347 res = res + t.c_name
1349 self.c_name_cache = res
1354 redef class MParameterType
1357 var res = self.c_name_cache
1358 if res != null then return res
1359 res = "{self.mclass.c_name}_FT{self.rank}"
1360 self.c_name_cache = res
1365 redef class MVirtualType
1368 var res = self.c_name_cache
1369 if res != null then return res
1370 res = "{self.mproperty.intro.mclassdef.mclass.c_name}_VT{self.mproperty.name}"
1371 self.c_name_cache = res
1376 redef class MNullableType
1379 var res = self.c_name_cache
1380 if res != null then return res
1381 res = "nullable_{self.mtype.c_name}"
1382 self.c_name_cache = res
1388 # Return the name of the C structure associated to a Nit class
1389 fun c_name: String do
1390 var res = self.c_name_cache
1391 if res != null then return res
1392 res = "{intro_mmodule.name.to_cmangle}__{name.to_cmangle}"
1393 self.c_name_cache = res
1396 private var c_name_cache: nullable String
1399 redef class MProperty
1400 fun c_name: String do
1401 var res = self.c_name_cache
1402 if res != null then return res
1403 res = "{self.intro.c_name}"
1404 self.c_name_cache = res
1407 private var c_name_cache: nullable String
1410 redef class MPropDef
1411 type VISITOR: AbstractCompilerVisitor
1413 private var c_name_cache: nullable String
1415 # The mangled name associated to the property
1418 var res = self.c_name_cache
1419 if res != null then return res
1420 res = "{self.mclassdef.mmodule.name.to_cmangle}__{self.mclassdef.mclass.name.to_cmangle}__{self.mproperty.name.to_cmangle}"
1421 self.c_name_cache = res
1426 redef class MMethodDef
1427 # Can the body be inlined?
1428 fun can_inline(v: VISITOR): Bool
1430 var modelbuilder = v.compiler.modelbuilder
1431 if modelbuilder.mpropdef2npropdef.has_key(self) then
1432 var npropdef = modelbuilder.mpropdef2npropdef[self]
1433 return npropdef.can_inline
1434 else if self.mproperty.name == "init" then
1435 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
1442 # Inline the body in another visitor
1443 fun compile_inside_to_c(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable
1445 var modelbuilder = v.compiler.modelbuilder
1446 if modelbuilder.mpropdef2npropdef.has_key(self) then
1447 var npropdef = modelbuilder.mpropdef2npropdef[self]
1448 var oldnode = v.current_node
1449 v.current_node = npropdef
1450 self.compile_parameter_check(v, arguments)
1451 npropdef.compile_to_c(v, self, arguments)
1452 v.current_node = oldnode
1453 else if self.mproperty.name == "init" then
1454 var nclassdef = modelbuilder.mclassdef2nclassdef[self.mclassdef]
1455 var oldnode = v.current_node
1456 v.current_node = nclassdef
1457 self.compile_parameter_check(v, arguments)
1458 nclassdef.compile_to_c(v, self, arguments)
1459 v.current_node = oldnode
1466 # Generate type checks in the C code to check covariant parameters
1467 fun compile_parameter_check(v: VISITOR, arguments: Array[RuntimeVariable])
1469 if v.compiler.modelbuilder.toolcontext.opt_no_check_covariance.value then return
1471 for i in [0..msignature.arity[ do
1472 # skip test for vararg since the array is instantiated with the correct polymorphic type
1473 if msignature.vararg_rank == i then continue
1475 # skip if the cast is not required
1476 var origmtype = self.mproperty.intro.msignature.mparameters[i].mtype
1477 if not origmtype.need_anchor then continue
1479 # get the parameter type
1480 var mtype = self.msignature.mparameters[i].mtype
1483 # note that v decides if and how to implements the cast
1484 v.add("/* Covariant cast for argument {i} ({self.msignature.mparameters[i].name}) {arguments[i+1].inspect} isa {mtype} */")
1485 v.add_cast(arguments[i+1], mtype, "covariance")
1492 redef class APropdef
1493 fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1495 v.add("printf(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at {location.to_s}\\n\");")
1496 debug("Not yet implemented")
1499 fun can_inline: Bool do return true
1502 redef class AConcreteMethPropdef
1503 redef fun compile_to_c(v, mpropdef, arguments)
1505 for i in [0..mpropdef.msignature.arity[ do
1506 var variable = self.n_signature.n_params[i].variable.as(not null)
1507 v.assign(v.variable(variable), arguments[i+1])
1509 # Call the implicit super-init
1510 var auto_super_inits = self.auto_super_inits
1511 if auto_super_inits != null then
1512 var args = [arguments.first]
1513 for auto_super_init in auto_super_inits do
1515 for i in [0..auto_super_init.msignature.arity+1[ do
1516 args.add(arguments[i])
1518 v.compile_callsite(auto_super_init, args)
1521 v.stmt(self.n_block)
1524 redef fun can_inline
1526 if self.auto_super_inits != null then return false
1527 var nblock = self.n_block
1528 if nblock == null then return true
1529 if (mpropdef.mproperty.name == "==" or mpropdef.mproperty.name == "!=") and mpropdef.mclassdef.mclass.name == "Object" then return true
1530 if nblock isa ABlockExpr and nblock.n_expr.length == 0 then return true
1535 redef class AInternMethPropdef
1536 redef fun compile_to_c(v, mpropdef, arguments)
1538 var pname = mpropdef.mproperty.name
1539 var cname = mpropdef.mclassdef.mclass.name
1540 var ret = mpropdef.msignature.return_mtype
1542 ret = v.resolve_for(ret, arguments.first)
1544 if pname != "==" and pname != "!=" then
1545 v.adapt_signature(mpropdef, arguments)
1547 if cname == "Int" then
1548 if pname == "output" then
1549 v.add("printf(\"%ld\\n\", {arguments.first});")
1551 else if pname == "object_id" then
1552 v.ret(arguments.first)
1554 else if pname == "+" then
1555 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1557 else if pname == "-" then
1558 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1560 else if pname == "unary -" then
1561 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1563 else if pname == "succ" then
1564 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1566 else if pname == "prec" then
1567 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1569 else if pname == "*" then
1570 v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
1572 else if pname == "/" then
1573 v.ret(v.new_expr("{arguments[0]} / {arguments[1]}", ret.as(not null)))
1575 else if pname == "%" then
1576 v.ret(v.new_expr("{arguments[0]} % {arguments[1]}", ret.as(not null)))
1578 else if pname == "lshift" then
1579 v.ret(v.new_expr("{arguments[0]} << {arguments[1]}", ret.as(not null)))
1581 else if pname == "rshift" then
1582 v.ret(v.new_expr("{arguments[0]} >> {arguments[1]}", ret.as(not null)))
1584 else if pname == "==" then
1585 v.ret(v.equal_test(arguments[0], arguments[1]))
1587 else if pname == "!=" then
1588 var res = v.equal_test(arguments[0], arguments[1])
1589 v.ret(v.new_expr("!{res}", ret.as(not null)))
1591 else if pname == "<" then
1592 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1594 else if pname == ">" then
1595 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1597 else if pname == "<=" then
1598 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1600 else if pname == ">=" then
1601 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1603 else if pname == "to_f" then
1604 v.ret(v.new_expr("(double){arguments[0]}", ret.as(not null)))
1606 else if pname == "ascii" then
1607 v.ret(v.new_expr("{arguments[0]}", ret.as(not null)))
1610 else if cname == "Char" then
1611 if pname == "output" then
1612 v.add("printf(\"%c\", {arguments.first});")
1614 else if pname == "object_id" then
1615 v.ret(v.new_expr("(long){arguments.first}", 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.equal_test(arguments[0], arguments[1]))
1626 else if pname == "!=" then
1627 var res = v.equal_test(arguments[0], arguments[1])
1628 v.ret(v.new_expr("!{res}", ret.as(not null)))
1630 else if pname == "succ" then
1631 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1633 else if pname == "prec" then
1634 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1636 else if pname == "<" then
1637 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", 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 == "to_i" then
1649 v.ret(v.new_expr("{arguments[0]}-'0'", ret.as(not null)))
1651 else if pname == "ascii" then
1652 v.ret(v.new_expr("(unsigned char){arguments[0]}", ret.as(not null)))
1655 else if cname == "Bool" then
1656 if pname == "output" then
1657 v.add("printf({arguments.first}?\"true\\n\":\"false\\n\");")
1659 else if pname == "object_id" then
1660 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1662 else if pname == "==" then
1663 v.ret(v.equal_test(arguments[0], arguments[1]))
1665 else if pname == "!=" then
1666 var res = v.equal_test(arguments[0], arguments[1])
1667 v.ret(v.new_expr("!{res}", ret.as(not null)))
1670 else if cname == "Float" then
1671 if pname == "output" then
1672 v.add("printf(\"%f\\n\", {arguments.first});")
1674 else if pname == "object_id" then
1675 v.ret(v.new_expr("(double){arguments.first}", ret.as(not null)))
1677 else if pname == "+" then
1678 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1680 else if pname == "-" then
1681 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1683 else if pname == "unary -" then
1684 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1686 else if pname == "succ" then
1687 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1689 else if pname == "prec" then
1690 v.ret(v.new_expr("{arguments[0]}-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.equal_test(arguments[0], arguments[1]))
1701 else if pname == "!=" then
1702 var res = v.equal_test(arguments[0], arguments[1])
1703 v.ret(v.new_expr("!{res}", ret.as(not null)))
1705 else if pname == "<" then
1706 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1708 else if pname == ">" then
1709 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1711 else if pname == "<=" then
1712 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1714 else if pname == ">=" then
1715 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1717 else if pname == "to_i" then
1718 v.ret(v.new_expr("(long){arguments[0]}", ret.as(not null)))
1721 else if cname == "NativeString" then
1722 if pname == "[]" then
1723 v.ret(v.new_expr("{arguments[0]}[{arguments[1]}]", ret.as(not null)))
1725 else if pname == "[]=" then
1726 v.add("{arguments[0]}[{arguments[1]}]={arguments[2]};")
1728 else if pname == "copy_to" then
1729 v.add("memcpy({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
1731 else if pname == "atoi" then
1732 v.ret(v.new_expr("atoi({arguments[0]});", ret.as(not null)))
1735 else if cname == "NativeArray" then
1736 v.native_array_def(pname, ret, arguments)
1739 if pname == "exit" then
1740 v.add("exit({arguments[1]});")
1742 else if pname == "sys" then
1743 v.ret(v.new_expr("glob_sys", ret.as(not null)))
1745 else if pname == "calloc_string" then
1746 v.ret(v.new_expr("(char*)nit_alloc({arguments[1]})", ret.as(not null)))
1748 else if pname == "calloc_array" then
1749 v.calloc_array(ret.as(not null), arguments)
1751 else if pname == "object_id" then
1752 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1754 else if pname == "is_same_type" then
1755 v.ret(v.is_same_type_test(arguments[0], arguments[1]))
1757 else if pname == "is_same_instance" then
1758 v.ret(v.equal_test(arguments[0], arguments[1]))
1760 else if pname == "output_class_name" then
1761 var nat = v.class_name_string(arguments.first)
1762 v.add("printf(\"%s\\n\", {nat});")
1764 else if pname == "native_class_name" then
1765 var nat = v.class_name_string(arguments.first)
1766 v.ret(v.new_expr("(char*){nat}", ret.as(not null)))
1768 else if pname == "force_garbage_collection" then
1769 v.add("nit_gcollect();")
1771 else if pname == "native_argc" then
1772 v.ret(v.new_expr("glob_argc", ret.as(not null)))
1774 else if pname == "native_argv" then
1775 v.ret(v.new_expr("glob_argv[{arguments[1]}]", ret.as(not null)))
1778 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{mpropdef} at {location.to_s}\\n\");")
1779 debug("Not implemented {mpropdef}")
1783 redef class AExternMethPropdef
1784 redef fun compile_to_c(v, mpropdef, arguments)
1787 var nextern = self.n_extern
1788 if nextern == null then
1789 v.add("fprintf(stderr, \"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1790 v.add("show_backtrace(1);")
1793 externname = nextern.text.substring(1, nextern.text.length-2)
1794 if location.file != null then
1795 var file = location.file.filename
1798 var res: nullable RuntimeVariable = null
1799 var ret = mpropdef.msignature.return_mtype
1801 ret = v.resolve_for(ret, arguments.first)
1802 res = v.new_var(ret)
1804 v.adapt_signature(mpropdef, arguments)
1807 v.add("{externname}({arguments.join(", ")});")
1809 v.add("{res} = {externname}({arguments.join(", ")});")
1815 redef class AExternInitPropdef
1816 redef fun compile_to_c(v, mpropdef, arguments)
1819 var nextern = self.n_extern
1820 if nextern == null then
1821 v.add("printf(\"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1822 v.add("show_backtrace(1);")
1825 externname = nextern.text.substring(1, nextern.text.length-2)
1826 if location.file != null then
1827 var file = location.file.filename
1830 v.adapt_signature(mpropdef, arguments)
1831 var ret = arguments.first.mtype
1832 var res = v.new_var(ret)
1836 v.add("{res} = {externname}({arguments.join(", ")});")
1841 redef class AAttrPropdef
1842 redef fun compile_to_c(v, mpropdef, arguments)
1844 if arguments.length == 1 then
1845 var res = v.read_attribute(self.mpropdef.mproperty, arguments.first)
1846 v.assign(v.frame.returnvar.as(not null), res)
1848 v.write_attribute(self.mpropdef.mproperty, arguments.first, arguments[1])
1852 fun init_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1854 var nexpr = self.n_expr
1855 if nexpr != null then
1856 var oldnode = v.current_node
1857 v.current_node = self
1858 var old_frame = v.frame
1859 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1861 var value = v.expr(nexpr, self.mpropdef.static_mtype)
1862 v.write_attribute(self.mpropdef.mproperty, recv, value)
1864 v.current_node = oldnode
1868 fun check_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1870 var nexpr = self.n_expr
1871 if nexpr != null then return
1873 var oldnode = v.current_node
1874 v.current_node = self
1875 var old_frame = v.frame
1876 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1878 # Force read to check the initialization
1879 v.read_attribute(self.mpropdef.mproperty, recv)
1881 v.current_node = oldnode
1885 redef class AClassdef
1886 private fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1888 if mpropdef == self.mfree_init then
1889 var super_inits = self.super_inits
1890 if super_inits != null then
1891 assert arguments.length == 1
1892 for su in super_inits do
1893 v.send(su, arguments)
1897 var recv = arguments.first
1899 # Collect undefined attributes
1900 for npropdef in self.n_propdefs do
1901 if npropdef isa AAttrPropdef and npropdef.n_expr == null then
1902 v.write_attribute(npropdef.mpropdef.mproperty, recv, arguments[i])
1912 redef class ADeferredMethPropdef
1913 redef fun compile_to_c(v, mpropdef, arguments) do
1914 var cn = v.class_name_string(arguments.first)
1915 v.add("fprintf(stderr, \"Runtime error: Abstract method `%s
` called on `%s
`\", \"{mpropdef.mproperty.name.escape_to_c}\", {cn});")
1918 redef fun can_inline do return true
1922 # Try to compile self as an expression
1923 # Do not call this method directly, use `v
.expr
` instead
1924 private fun expr(v: AbstractCompilerVisitor): nullable RuntimeVariable
1926 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\");")
1927 var mtype = self.mtype
1928 if mtype == null then
1931 var res = v.new_var(mtype)
1932 v.add("/* {res} = NOT YET {class_name} */")
1937 # Try to compile self as a statement
1938 # Do not call this method directly, use `v
.stmt
` instead
1939 private fun stmt(v: AbstractCompilerVisitor)
1942 if res != null then v.add("{res};")
1946 redef class ABlockExpr
1949 for e in self.n_expr do v.stmt(e)
1953 var last = self.n_expr.last
1954 for e in self.n_expr do
1955 if e == last then break
1958 return v.expr(last, null)
1962 redef class AVardeclExpr
1965 var variable = self.variable.as(not null)
1966 var ne = self.n_expr
1968 var i = v.expr(ne, variable.declared_type)
1969 v.assign(v.variable(variable), i)
1974 redef class AVarExpr
1977 var res = v.variable(self.variable.as(not null))
1978 var mtype = self.mtype.as(not null)
1979 return v.autoadapt(res, mtype)
1983 redef class AVarAssignExpr
1986 var variable = self.variable.as(not null)
1987 var i = v.expr(self.n_value, variable.declared_type)
1988 v.assign(v.variable(variable), i)
1992 var variable = self.variable.as(not null)
1993 var i = v.expr(self.n_value, variable.declared_type)
1994 v.assign(v.variable(variable), i)
1999 redef class AVarReassignExpr
2002 var variable = self.variable.as(not null)
2003 var vari = v.variable(variable)
2004 var value = v.expr(self.n_value, variable.declared_type)
2005 var res = v.compile_callsite(self.reassign_callsite.as(not null), [vari, value])
2007 v.assign(v.variable(variable), res)
2011 redef class ASelfExpr
2012 redef fun expr(v) do return v.frame.arguments.first
2015 redef class AContinueExpr
2016 redef fun stmt(v) do v.add("goto CONTINUE_{v.escapemark_name(self.escapemark)};")
2019 redef class ABreakExpr
2020 redef fun stmt(v) do v.add("goto BREAK_{v.escapemark_name(self.escapemark)};")
2023 redef class AReturnExpr
2026 var nexpr = self.n_expr
2027 if nexpr != null then
2028 var returnvar = v.frame.returnvar.as(not null)
2029 var i = v.expr(nexpr, returnvar.mtype)
2030 v.assign(returnvar, i)
2032 v.add("goto {v.frame.returnlabel.as(not null)};")
2036 redef class AAbortExpr
2037 redef fun stmt(v) do v.add_abort("Aborted")
2043 var cond = v.expr_bool(self.n_expr)
2044 v.add("if ({cond})\{")
2053 var res = v.new_var(self.mtype.as(not null))
2054 var cond = v.expr_bool(self.n_expr)
2055 v.add("if ({cond})\{")
2056 v.assign(res, v.expr(self.n_then.as(not null), null))
2058 v.assign(res, v.expr(self.n_else.as(not null), null))
2064 redef class AIfexprExpr
2067 var res = v.new_var(self.mtype.as(not null))
2068 var cond = v.expr_bool(self.n_expr)
2069 v.add("if ({cond})\{")
2070 v.assign(res, v.expr(self.n_then, null))
2072 v.assign(res, v.expr(self.n_else, null))
2081 v.stmt(self.n_block)
2082 var escapemark = self.escapemark
2083 if escapemark != null then
2084 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2089 redef class AWhileExpr
2093 var cond = v.expr_bool(self.n_expr)
2094 v.add("if (!{cond}) break;")
2095 v.stmt(self.n_block)
2096 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2098 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2102 redef class ALoopExpr
2106 v.stmt(self.n_block)
2107 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2109 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2113 redef class AForExpr
2116 # Shortcut on explicit range
2117 # Avoid the instantiation of the range and the iterator
2118 var nexpr = self.n_expr
2119 if self.variables.length == 1 and nexpr isa AOrangeExpr and not v.compiler.modelbuilder.toolcontext.opt_no_shortcut_range.value then
2120 var from = v.expr(nexpr.n_expr, null)
2121 var to = v.expr(nexpr.n_expr2, null)
2122 var variable = v.variable(variables.first)
2124 v.assign(variable, from)
2125 v.add("for(;;) \{ /* shortcut range */")
2127 var ok = v.send(v.get_property("<", variable.mtype), [variable, to])
2129 v.add("if(!{ok}) break;")
2131 v.stmt(self.n_block)
2133 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2134 var succ = v.send(v.get_property("succ", variable.mtype), [variable])
2136 v.assign(variable, succ)
2138 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2142 var cl = v.expr(self.n_expr, null)
2143 var it_meth = self.method_iterator
2144 assert it_meth != null
2145 var it = v.send(it_meth, [cl])
2148 var isok_meth = self.method_is_ok
2149 assert isok_meth != null
2150 var ok = v.send(isok_meth, [it])
2152 v.add("if(!{ok}) break;")
2153 if self.variables.length == 1 then
2154 var item_meth = self.method_item
2155 assert item_meth != null
2156 var i = v.send(item_meth, [it])
2158 v.assign(v.variable(variables.first), i)
2159 else if self.variables.length == 2 then
2160 var key_meth = self.method_key
2161 assert key_meth != null
2162 var i = v.send(key_meth, [it])
2164 v.assign(v.variable(variables[0]), i)
2165 var item_meth = self.method_item
2166 assert item_meth != null
2167 i = v.send(item_meth, [it])
2169 v.assign(v.variable(variables[1]), i)
2173 v.stmt(self.n_block)
2174 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2175 var next_meth = self.method_next
2176 assert next_meth != null
2177 v.send(next_meth, [it])
2179 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2183 redef class AAssertExpr
2186 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return
2188 var cond = v.expr_bool(self.n_expr)
2189 v.add("if (!{cond}) \{")
2193 v.add_abort("Assert '{nid.text}' failed")
2195 v.add_abort("Assert failed")
2204 var res = v.new_var(self.mtype.as(not null))
2205 var i1 = v.expr_bool(self.n_expr)
2206 v.add("if ({i1}) \{")
2209 var i2 = v.expr_bool(self.n_expr2)
2210 v.add("{res} = {i2};")
2216 redef class AImpliesExpr
2219 var res = v.new_var(self.mtype.as(not null))
2220 var i1 = v.expr_bool(self.n_expr)
2221 v.add("if (!{i1}) \{")
2224 var i2 = v.expr_bool(self.n_expr2)
2225 v.add("{res} = {i2};")
2231 redef class AAndExpr
2234 var res = v.new_var(self.mtype.as(not null))
2235 var i1 = v.expr_bool(self.n_expr)
2236 v.add("if (!{i1}) \{")
2239 var i2 = v.expr_bool(self.n_expr2)
2240 v.add("{res} = {i2};")
2246 redef class ANotExpr
2249 var cond = v.expr_bool(self.n_expr)
2250 return v.new_expr("!{cond}", self.mtype.as(not null))
2254 redef class AOrElseExpr
2257 var res = v.new_var(self.mtype.as(not null))
2258 var i1 = v.expr(self.n_expr, null)
2259 v.add("if ({i1}!=NULL) \{")
2262 var i2 = v.expr(self.n_expr2, null)
2269 redef class AIntExpr
2270 redef fun expr(v) do return v.new_expr("{self.value.to_s}", self.mtype.as(not null))
2273 redef class AFloatExpr
2274 redef fun expr(v) do return v.new_expr("{self.n_float.text}", self.mtype.as(not null)) # FIXME use value, not n_float
2277 redef class ACharExpr
2278 redef fun expr(v) do return v.new_expr("'{self.value.to_s.escape_to_c}'", self.mtype.as(not null))
2281 redef class AArrayExpr
2284 var mtype = self.mtype.as(MClassType).arguments.first
2285 var array = new Array[RuntimeVariable]
2286 for nexpr in self.n_exprs.n_exprs do
2287 var i = v.expr(nexpr, mtype)
2290 return v.array_instance(array, mtype)
2294 redef class AStringFormExpr
2295 redef fun expr(v) do return v.string_instance(self.value.as(not null))
2298 redef class ASuperstringExpr
2301 var array = new Array[RuntimeVariable]
2302 for ne in self.n_exprs do
2303 if ne isa AStringFormExpr and ne.value == "" then continue # skip empty sub-strings
2304 var i = v.expr(ne, null)
2307 var a = v.array_instance(array, v.object_type)
2308 var res = v.send(v.get_property("to_s", a.mtype), [a])
2313 redef class ACrangeExpr
2316 var i1 = v.expr(self.n_expr, null)
2317 var i2 = v.expr(self.n_expr2, null)
2318 var mtype = self.mtype.as(MClassType)
2319 var res = v.init_instance(mtype)
2320 var it = v.send(v.get_property("init", res.mtype), [res, i1, i2])
2325 redef class AOrangeExpr
2328 var i1 = v.expr(self.n_expr, null)
2329 var i2 = v.expr(self.n_expr2, null)
2330 var mtype = self.mtype.as(MClassType)
2331 var res = v.init_instance(mtype)
2332 var it = v.send(v.get_property("without_last", res.mtype), [res, i1, i2])
2337 redef class ATrueExpr
2338 redef fun expr(v) do return v.new_expr("1", self.mtype.as(not null))
2341 redef class AFalseExpr
2342 redef fun expr(v) do return v.new_expr("0", self.mtype.as(not null))
2345 redef class ANullExpr
2346 redef fun expr(v) do return v.new_expr("NULL", self.mtype.as(not null))
2349 redef class AIsaExpr
2352 var i = v.expr(self.n_expr, null)
2353 return v.type_test(i, self.cast_type.as(not null), "isa")
2357 redef class AAsCastExpr
2360 var i = v.expr(self.n_expr, null)
2361 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2363 v.add_cast(i, self.mtype.as(not null), "as")
2368 redef class AAsNotnullExpr
2371 var i = v.expr(self.n_expr, null)
2372 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2374 v.add("if ({i} == NULL) \{")
2375 v.add_abort("Cast failed")
2381 redef class AParExpr
2382 redef fun expr(v) do return v.expr(self.n_expr, null)
2385 redef class AOnceExpr
2388 var mtype = self.mtype.as(not null)
2389 var name = v.get_name("varonce")
2390 var guard = v.get_name(name + "_guard")
2391 v.add_decl("static {mtype.ctype} {name};")
2392 v.add_decl("static int {guard};")
2393 var res = v.new_var(mtype)
2394 v.add("if ({guard}) \{")
2395 v.add("{res} = {name};")
2397 var i = v.expr(self.n_expr, mtype)
2398 v.add("{res} = {i};")
2399 v.add("{name} = {res};")
2400 v.add("{guard} = 1;")
2406 redef class ASendExpr
2409 var recv = v.expr(self.n_expr, null)
2411 for a in self.raw_arguments.as(not null) do
2412 args.add(v.expr(a, null))
2414 return v.compile_callsite(self.callsite.as(not null), args)
2418 redef class ASendReassignFormExpr
2421 var recv = v.expr(self.n_expr, null)
2423 for a in self.raw_arguments.as(not null) do
2424 args.add(v.expr(a, null))
2426 var value = v.expr(self.n_value, null)
2428 var left = v.compile_callsite(self.callsite.as(not null), args)
2431 var res = v.compile_callsite(self.reassign_callsite.as(not null), [left, value])
2435 v.compile_callsite(self.write_callsite.as(not null), args)
2439 redef class ASuperExpr
2442 var recv = v.frame.arguments.first
2444 for a in self.n_args.n_exprs do
2445 args.add(v.expr(a, null))
2448 var callsite = self.callsite
2449 if callsite != null then
2450 # Add additionnals arguments for the super init call
2451 if args.length == 1 then
2452 for i in [0..callsite.mproperty.intro.msignature.arity[ do
2453 args.add(v.frame.arguments[i+1])
2457 var res = v.compile_callsite(callsite, args)
2461 if args.length == 1 then
2462 args = v.frame.arguments
2465 # stantard call-next-method
2466 return v.supercall(v.frame.mpropdef.as(MMethodDef), recv.mtype.as(MClassType), args)
2470 redef class ANewExpr
2473 var mtype = self.mtype.as(MClassType)
2475 var ctype = mtype.ctype
2476 if ctype == "val*" then
2477 recv = v.init_instance(mtype)
2478 else if ctype == "void*" then
2479 recv = v.new_expr("NULL/*special!*/", mtype)
2481 debug("cannot new {mtype}")
2485 for a in self.n_args.n_exprs do
2486 args.add(v.expr(a, null))
2488 var res2 = v.compile_callsite(self.callsite.as(not null), args)
2489 if res2 != null then
2490 #self.debug("got {res2} from {mproperty}. drop {recv}")
2497 redef class AAttrExpr
2500 var recv = v.expr(self.n_expr, null)
2501 var mproperty = self.mproperty.as(not null)
2502 return v.read_attribute(mproperty, recv)
2506 redef class AAttrAssignExpr
2509 var recv = v.expr(self.n_expr, null)
2510 var i = v.expr(self.n_value, null)
2511 var mproperty = self.mproperty.as(not null)
2512 v.write_attribute(mproperty, recv, i)
2516 redef class AAttrReassignExpr
2519 var recv = v.expr(self.n_expr, null)
2520 var value = v.expr(self.n_value, null)
2521 var mproperty = self.mproperty.as(not null)
2522 var attr = v.read_attribute(mproperty, recv)
2523 var res = v.compile_callsite(self.reassign_callsite.as(not null), [attr, value])
2525 v.write_attribute(mproperty, recv, res)
2529 redef class AIssetAttrExpr
2532 var recv = v.expr(self.n_expr, null)
2533 var mproperty = self.mproperty.as(not null)
2534 return v.isset_attribute(mproperty, recv)
2538 redef class ADebugTypeExpr
2547 redef class Array[E]
2548 # Return a new `Array` with the elements only contened in self and not in `o
`
2549 fun -(o: Array[E]): Array[E] do
2550 var res = new Array[E]
2551 for e in self do if not o.has(e) then res.add(e)
2557 # All `MProperty` associated to all `MClassDef` of `mclass
`
2558 fun properties(mclass: MClass): Set[MProperty] do
2559 if not self.properties_cache.has_key(mclass) then
2560 var properties = new HashSet[MProperty]
2561 var parents = new Array[MClass]
2562 if self.flatten_mclass_hierarchy.has(mclass) then
2563 parents.add_all(mclass.in_hierarchy(self).direct_greaters)
2565 for parent in parents do
2566 properties.add_all(self.properties(parent))
2568 for mclassdef in mclass.mclassdefs do
2569 for mprop in mclassdef.intro_mproperties do
2570 properties.add(mprop)
2573 self.properties_cache[mclass] = properties
2575 return properties_cache[mclass]
2577 private var properties_cache: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
2581 # Does this module use the legacy native interface?
2582 fun uses_legacy_ni: Bool is abstract
2584 # Write FFI results to file
2585 fun finalize_ffi(v: AbstractCompilerVisitor, modelbuilder: ModelBuilder) is abstract
2587 # Write nitni results to file
2588 fun finalize_nitni(v: AbstractCompilerVisitor) is abstract