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 outname
= self.toolcontext
.opt_output
.value
243 if outname
== null then
244 outname
= "{compiler.mainmodule.name}"
247 var orig_dir
=".." # FIXME only works if `compile_dir` is a subdirectory of cwd
248 var outpath
= orig_dir
.join_path
(outname
).simplify_path
249 var makename
= "{compiler.mainmodule.name}.mk"
250 var makepath
= "{compile_dir}/{makename}"
251 var makefile
= new OFStream.open
(makepath
)
255 cc_includes
+= " -I \"" + p + "\
""
258 var linker_options
= new HashSet[String]
259 for m
in compiler
.mainmodule
.in_importation
.greaters
do if mmodule2nmodule
.keys
.has
(m
) then
260 var amod
= mmodule2nmodule
[m
]
261 linker_options
.add
(amod
.c_linker_options
)
264 if not toolcontext
.opt_no_stacktrace
.value
then linker_options
.add
("-lunwind")
266 makefile
.write
("CC = ccache cc\nCFLAGS = -g -O2\nCINCL = {cc_includes}\nLDFLAGS ?= \nLDLIBS ?= -lm -lgc {linker_options.join(" ")}\n\n")
267 makefile
.write
("all: {outpath}\n\n")
269 var ofiles
= new Array[String]
270 # Compile each generated file
272 var o
= f
.strip_extension
(".c") + ".o"
273 makefile
.write
("{o}: {f}\n\t$(CC) $(CFLAGS) $(CINCL) -D NONITCNI -c -o {o} {f}\n\n")
277 # Compile each required extern body into a specific .o
278 for f
in compiler
.extern_bodies
do
279 if f
isa ExternCFile then
280 var basename
= f
.filename
.basename
(".c")
281 var o
= "{basename}.extern.o"
282 var ff
= f
.filename
.basename
("")
283 makefile
.write
("{o}: {ff}\n\t$(CC) $(CFLAGS) -D NONITCNI {f.cflags} -c -o {o} {ff}\n\n")
289 makefile
.write
("{outpath}: {ofiles.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath} {ofiles.join(" ")} $(LDLIBS)\n\n")
291 makefile
.write
("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n\n")
293 self.toolcontext
.info
("Generated makefile: {makepath}", 2)
296 fun compile_c_code
(compiler
: AbstractCompiler, compile_dir
: String)
298 var makename
= "{compiler.mainmodule.name}.mk" # FIXME duplicated from write_makefile
300 var makeflags
= self.toolcontext
.opt_make_flags
.value
301 if makeflags
== null then makeflags
= ""
302 self.toolcontext
.info
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags}", 2)
305 if self.toolcontext
.verbose_level
>= 3 then
306 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1")
308 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1 >/dev/null")
311 toolcontext
.error
(null, "make failed! Error code: {res}.")
316 # Singleton that store the knowledge about the compilation process
317 abstract class AbstractCompiler
318 type VISITOR: AbstractCompilerVisitor
320 # Table corresponding c_names to nit names (methods)
321 var names
= new HashMap[String, String]
323 # The main module of the program currently compiled
324 # Is assigned during the separate compilation
325 var mainmodule
: MModule writable
327 # The real main module of the program
328 var realmainmodule
: MModule
330 # The modeulbuilder used to know the model and the AST
331 var modelbuilder
: ModelBuilder protected writable
333 # Is hardening asked? (see --hardening)
334 fun hardening
: Bool do return self.modelbuilder
.toolcontext
.opt_hardening
.value
336 init(mainmodule
: MModule, modelbuilder
: ModelBuilder)
338 self.mainmodule
= mainmodule
339 self.realmainmodule
= mainmodule
340 self.modelbuilder
= modelbuilder
343 # Force the creation of a new file
344 # The point is to avoid contamination between must-be-compiled-separately files
345 fun new_file
(name
: String): CodeFile
347 var f
= new CodeFile(name
)
352 # The list of all associated files
353 # Used to generate .c files
354 var files
: List[CodeFile] = new List[CodeFile]
356 # Initialize a visitor specific for a compiler engine
357 fun new_visitor
: VISITOR is abstract
359 # Where global declaration are stored (the main .h)
360 var header
: CodeWriter writable
362 # Provide a declaration that can be requested (before or latter) by a visitor
363 fun provide_declaration
(key
: String, s
: String)
365 if self.provided_declarations
.has_key
(key
) then
366 assert self.provided_declarations
[key
] == s
368 self.provided_declarations
[key
] = s
371 private var provided_declarations
= new HashMap[String, String]
373 # Builds the .c and .h files to be used when generating a Stack Trace
374 # Binds the generated C function names to Nit function names
375 fun build_c_to_nit_bindings
377 var compile_dir
= modelbuilder
.compile_dir
379 var stream
= new OFStream.open
("{compile_dir}/C_fun_names")
380 stream
.write
("%\{\n#include \"c_functions_hash.h\"\n%\}\n")
381 stream
.write
("%define lookup-function-name get_nit_name\n")
382 stream
.write
("struct C_Nit_Names;\n")
384 stream
.write
("####\n")
385 for i
in names
.keys
do
387 stream
.write
(",\t\"")
388 stream.write(names[i])
391 stream
.write
("####\n")
395 stream
= new OFStream.open
("{compile_dir}/c_functions_hash.h")
396 stream
.write
("typedef struct C_Nit_Names\{char* name; char* nit_name;\}C_Nit_Names;\n")
397 stream
.write
("const struct C_Nit_Names* get_nit_name(register const char *str, register unsigned int len);\n")
400 var x
= new Process("gperf","{compile_dir}/C_fun_names","-t","-7","--output-file={compile_dir}/c_functions_hash.c","-C")
403 extern_bodies
.add
(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
407 # This method call compile_header_strucs method that has to be refined
408 fun compile_header
do
410 var toolctx
= modelbuilder
.toolcontext
411 self.header
.add_decl
("#include <stdlib.h>")
412 self.header
.add_decl
("#include <stdio.h>")
413 self.header
.add_decl
("#include <string.h>")
414 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
416 compile_header_structs
417 compile_nitni_structs
419 # Signal handler function prototype
420 self.header
.add_decl
("void show_backtrace(int);")
422 # Global variable used by intern methods
423 self.header
.add_decl
("extern int glob_argc;")
424 self.header
.add_decl
("extern char **glob_argv;")
425 self.header
.add_decl
("extern val *glob_sys;")
428 # Declaration of structures for live Nit types
429 protected fun compile_header_structs
is abstract
431 # Declaration of structures for nitni undelying the FFI
432 protected fun compile_nitni_structs
is abstract
434 # Generate the main C function.
436 # * allocate the Sys object if it exists
437 # * call init if is exists
438 # * call main if it exists
439 fun compile_main_function
441 var v
= self.new_visitor
442 if modelbuilder
.toolcontext
.opt_stacktrace
.value
then
443 v
.add_decl
("#include \"c_functions_hash
.h\
"")
445 v
.add_decl
("#include <signal.h>")
446 if not modelbuilder
.toolcontext
.opt_no_stacktrace
.value
then
447 v
.add_decl
("#define UNW_LOCAL_ONLY")
448 v
.add_decl
("#include <libunwind.h>")
450 v
.add_decl
("int glob_argc;")
451 v
.add_decl
("char **glob_argv;")
452 v
.add_decl
("val *glob_sys;")
454 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
455 for tag
in count_type_test_tags
do
456 v
.add_decl
("long count_type_test_resolved_{tag};")
457 v
.add_decl
("long count_type_test_unresolved_{tag};")
458 v
.add_decl
("long count_type_test_skipped_{tag};")
459 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
460 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
461 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
465 v
.add_decl
("void show_backtrace (int signo) \{")
466 if not modelbuilder
.toolcontext
.opt_no_stacktrace
.value
then
467 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
468 v
.add_decl
("unw_cursor_t cursor;")
469 v
.add_decl
("if(opt==NULL)\{")
470 v
.add_decl
("unw_context_t uc;")
471 v
.add_decl
("unw_word_t ip;")
472 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
473 v
.add_decl
("unw_getcontext(&uc);")
474 v
.add_decl
("unw_init_local(&cursor, &uc);")
475 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
476 v
.add_decl
("printf(\"-- Stack Trace ------------------------------\\n\
");")
477 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
478 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
479 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
480 if modelbuilder
.toolcontext
.opt_stacktrace
.value
then
481 v
.add_decl
(" const C_Nit_Names* recv = get_nit_name(procname, strlen(procname));")
482 v
.add_decl
(" if (recv != 0)\{")
483 v
.add_decl
(" printf(\"` %s\\n\", recv->nit_name);")
484 v.add_decl(" \}else\{")
485 v.add_decl(" printf(\"` %s\\n\
", procname);")
488 v
.add_decl
(" printf(\"` %s \\n\",procname);")
491 v.add_decl("printf(\"-------------------------------------------------\\n\");")
492 v.add_decl("free(procname);")
495 v.add_decl("exit(signo);")
498 v.add_decl("int main(int argc, char** argv) \{")
500 v.add("signal(SIGABRT, show_backtrace);")
501 v.add("signal(SIGFPE, show_backtrace);")
502 v.add("signal(SIGILL, show_backtrace);")
503 v.add("signal(SIGINT, show_backtrace);")
504 v.add("signal(SIGTERM, show_backtrace);")
505 v.add("signal(SIGSEGV, show_backtrace);")
507 v.add("glob_argc = argc; glob_argv = argv;")
508 v.add("initialize_gc_option();")
509 var main_type = mainmodule.sys_type
510 if main_type != null then
511 var mainmodule = v.compiler.mainmodule
512 var glob_sys = v.init_instance(main_type)
513 v.add("glob_sys = {glob_sys};")
514 var main_init = mainmodule.try_get_primitive_method("init", main_type.mclass)
515 if main_init != null then
516 v.send(main_init, [glob_sys])
518 var main_method = mainmodule.try_get_primitive_method("main", main_type.mclass)
519 if main_method != null then
520 v.send(main_method, [glob_sys])
524 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
525 v.add_decl("long count_type_test_resolved_total = 0;")
526 v.add_decl("long count_type_test_unresolved_total = 0;")
527 v.add_decl("long count_type_test_skipped_total = 0;")
528 v.add_decl("long count_type_test_total_total = 0;")
529 for tag in count_type_test_tags do
530 v.add_decl("long count_type_test_total_{tag};")
531 v.add("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
532 v.add("count_type_test_resolved_total += count_type_test_resolved_{tag};")
533 v.add("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
534 v.add("count_type_test_skipped_total += count_type_test_skipped_{tag};")
535 v.add("count_type_test_total_total += count_type_test_total_{tag};")
537 v.add("printf(\"# dynamic count_type_test: total %l\\n\");")
538 v.add("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\");")
539 var tags = count_type_test_tags.to_a
542 v.add("printf(\"{tag}\");")
543 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
544 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
545 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
546 v.add("printf(\"\\t%ld (%.2f%%)\\n\", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
554 # List of additional files required to compile (FFI)
555 var extern_bodies = new Array[ExternFile]
557 # List of source files to copy over to the compile dir
558 var files_to_copy = new Array[String]
560 # This is used to avoid adding an extern file more than once
561 private var seen_extern = new ArraySet[String]
563 # Generate code that initialize the attributes on a new instance
564 fun generate_init_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
566 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
567 self.mainmodule.linearize_mclassdefs(cds)
569 var n = self.modelbuilder.mclassdef2nclassdef[cd]
570 for npropdef in n.n_propdefs do
571 if npropdef isa AAttrPropdef then
572 npropdef.init_expr(v, recv)
578 # Generate code that check if an attribute is correctly initialized
579 fun generate_check_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
581 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
582 self.mainmodule.linearize_mclassdefs(cds)
584 var n = self.modelbuilder.mclassdef2nclassdef[cd]
585 for npropdef in n.n_propdefs do
586 if npropdef isa AAttrPropdef then
587 npropdef.check_expr(v, recv)
595 var count_type_test_tags: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
596 var count_type_test_resolved: HashMap[String, Int] = init_count_type_test_tags
597 var count_type_test_unresolved: HashMap[String, Int] = init_count_type_test_tags
598 var count_type_test_skipped: HashMap[String, Int] = init_count_type_test_tags
600 protected fun init_count_type_test_tags: HashMap[String, Int]
602 var res = new HashMap[String, Int]
603 for tag in count_type_test_tags do
609 # Display stats about compilation process
611 # * type tests against resolved types (`x
isa Collection[Animal]`)
612 # * type tests against unresolved types (`x
isa Collection[E
]`)
613 # * type tests skipped
618 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
619 print "# static count_type_test"
620 print "\tresolved:\tunresolved\tskipped\ttotal"
621 var count_type_test_total = init_count_type_test_tags
622 count_type_test_resolved["total"] = 0
623 count_type_test_unresolved["total"] = 0
624 count_type_test_skipped["total"] = 0
625 count_type_test_total["total"] = 0
626 for tag in count_type_test_tags do
627 count_type_test_total[tag] = count_type_test_resolved[tag] + count_type_test_unresolved[tag] + count_type_test_skipped[tag]
628 count_type_test_resolved["total"] += count_type_test_resolved[tag]
629 count_type_test_unresolved["total"] += count_type_test_unresolved[tag]
630 count_type_test_skipped["total"] += count_type_test_skipped[tag]
631 count_type_test_total["total"] += count_type_test_total[tag]
633 var count_type_test = count_type_test_total["total"]
634 var tags = count_type_test_tags.to_a
638 printn "\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
639 printn "\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
640 printn "\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
641 printn "\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
648 # Avoid division by zero by returning the string "n/a"
649 fun div(a,b:Int):String
651 if b == 0 then return "n/a"
652 return ((a*10000/b).to_f / 100.0).to_precision(2)
655 fun finalize_ffi_for_module(nmodule: AModule)
657 var visitor = new_visitor
658 nmodule.finalize_ffi(visitor, modelbuilder)
659 nmodule.finalize_nitni(visitor)
662 # Does this compiler support the FFI?
663 fun supports_ffi: Bool do return false
666 # A file unit (may be more than one file if
667 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
670 var writers = new Array[CodeWriter]
671 var required_declarations = new HashSet[String]
674 # Where to store generated lines
677 var lines: List[String] = new List[String]
678 var decl_lines: List[String] = new List[String]
680 # Add a line in the main part of the generated C
681 fun add(s: String) do self.lines.add(s)
684 # (used for local or global declaration)
685 fun add_decl(s: String) do self.decl_lines.add(s)
690 file.writers.add(self)
694 # A visitor on the AST of property definition that generate the C code.
695 abstract class AbstractCompilerVisitor
697 type COMPILER: AbstractCompiler
699 # The associated compiler
700 var compiler: COMPILER
702 # The current visited AST node
703 var current_node: nullable ANode writable = null
705 # The current `Frame`
706 var frame: nullable Frame writable
708 # Alias for self.compiler.mainmodule.object_type
709 fun object_type: MClassType do return self.compiler.mainmodule.object_type
711 # Alias for self.compiler.mainmodule.bool_type
712 fun bool_type: MClassType do return self.compiler.mainmodule.bool_type
714 var writer: CodeWriter
716 init(compiler: COMPILER)
718 self.compiler = compiler
719 self.writer = new CodeWriter(compiler.files.last)
722 # Force to get the primitive class named `name
` or abort
723 fun get_class(name: String): MClass do return self.compiler.mainmodule.get_primitive_class(name)
725 # Force to get the primitive property named `name
` in the instance `recv
` or abort
726 fun get_property(name: String, recv: MType): MMethod
728 assert recv isa MClassType
729 return self.compiler.modelbuilder.force_get_primitive_method(self.current_node.as(not null), name, recv.mclass, self.compiler.mainmodule)
732 fun compile_callsite(callsite: CallSite, args: Array[RuntimeVariable]): nullable RuntimeVariable
734 return self.send(callsite.mproperty, args)
737 fun calloc_array(ret_type: MType, arguments: Array[RuntimeVariable]) is abstract
739 fun native_array_def(pname: String, ret_type: nullable MType, arguments: Array[RuntimeVariable]) is abstract
741 # Transform varargs, in raw arguments, into a single argument of type `Array`
742 # Note: this method modify the given `args
`
743 # If there is no vararg, then `args
` is not modified.
744 fun varargize(mpropdef: MPropDef, msignature: MSignature, args: Array[RuntimeVariable])
746 var recv = args.first
747 var vararg_rank = msignature.vararg_rank
748 if vararg_rank >= 0 then
749 assert args.length >= msignature.arity + 1 # because of self
751 args = new Array[RuntimeVariable]
753 args.add(rawargs.first) # recv
755 for i in [0..vararg_rank[ do
756 args.add(rawargs[i+1])
759 var vararg_lastrank = vararg_rank + rawargs.length-1-msignature.arity
760 var vararg = new Array[RuntimeVariable]
761 for i in [vararg_rank..vararg_lastrank] do
762 vararg.add(rawargs[i+1])
765 var elttype = msignature.mparameters[vararg_rank].mtype
766 args.add(self.vararg_instance(mpropdef, recv, vararg, elttype))
768 for i in [vararg_lastrank+1..rawargs.length-1[ do
769 args.add(rawargs[i+1])
772 rawargs.add_all(args)
778 # Anchor a type to the main module and the current receiver
779 fun anchor(mtype: MType): MType
781 if not mtype.need_anchor then return mtype
782 return mtype.anchor_to(self.compiler.mainmodule, self.frame.receiver)
785 fun resolve_for(mtype: MType, recv: RuntimeVariable): MType
787 if not mtype.need_anchor then return mtype
788 return mtype.resolve_for(recv.mcasttype, self.frame.receiver, self.compiler.mainmodule, true)
791 # Unsafely cast a value to a new type
792 # ie the result share the same C variable but my have a different mcasttype
793 # NOTE: if the adaptation is useless then `value
` is returned as it.
794 # ENSURE: `result
.name
== value
.name
`
795 fun autoadapt(value: RuntimeVariable, mtype: MType): RuntimeVariable
797 mtype = self.anchor(mtype)
798 var valmtype = value.mcasttype
799 if valmtype.is_subtype(self.compiler.mainmodule, null, mtype) then
803 if valmtype isa MNullableType and valmtype.mtype.is_subtype(self.compiler.mainmodule, null, mtype) then
804 var res = new RuntimeVariable(value.name, valmtype, valmtype.mtype)
807 var res = new RuntimeVariable(value.name, valmtype, mtype)
812 # Generate a super call from a method definition
813 fun supercall(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
815 fun adapt_signature(m: MMethodDef, args: Array[RuntimeVariable]) is abstract
817 # Box or unbox a value to another type iff a C type conversion is needed
818 # ENSURE: `result
.mtype
.ctype
== mtype
.ctype
`
819 fun autobox(value: RuntimeVariable, mtype: MType): RuntimeVariable is abstract
821 # Generate a polymorphic subtype test
822 fun type_test(value: RuntimeVariable, mtype: MType, tag: String): RuntimeVariable is abstract
824 # Generate the code required to dynamically check if 2 objects share the same runtime type
825 fun is_same_type_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
827 # Generate a Nit "is" for two runtime_variables
828 fun equal_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
832 # Generate a static call on a method definition
833 fun call(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
835 # Generate a polymorphic send for the method `m
` and the arguments `args
`
836 fun send(m: MMethod, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
838 # Generate a monomorphic send for the method `m
`, the type `t
` and the arguments `args
`
839 fun monomorphic_send(m: MMethod, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
841 assert t isa MClassType
842 var propdef = m.lookup_first_definition(self.compiler.mainmodule, t)
843 return self.call(propdef, t, args)
846 # Generate a monomorphic super send from the method `m
`, the type `t
` and the arguments `args
`
847 fun monomorphic_super_send(m: MMethodDef, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
849 assert t isa MClassType
850 m = m.lookup_next_definition(self.compiler.mainmodule, t)
851 return self.call(m, t, args)
854 # Attributes handling
856 # Generate a polymorphic attribute is_set test
857 fun isset_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
859 # Generate a polymorphic attribute read
860 fun read_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
862 # Generate a polymorphic attribute write
863 fun write_attribute(a: MAttribute, recv: RuntimeVariable, value: RuntimeVariable) is abstract
867 # Add a check and an abort for a null reciever if needed
868 fun check_recv_notnull(recv: RuntimeVariable)
870 if self.compiler.modelbuilder.toolcontext.opt_no_check_other.value then return
872 var maybenull = recv.mcasttype isa MNullableType or recv.mcasttype isa MNullType
874 self.add("if ({recv} == NULL) \{")
875 self.add_abort("Reciever is null")
882 private var names: HashSet[String] = new HashSet[String]
883 private var last: Int = 0
885 # Return a new name based on `s
` and unique in the visitor
886 fun get_name(s: String): String
888 if not self.names.has(s) then
892 var i = self.last + 1
895 if not self.names.has(s2) then
904 # Return an unique and stable identifier associated with an escapemark
905 fun escapemark_name(e: nullable EscapeMark): String
908 if escapemark_names.has_key(e) then return escapemark_names[e]
910 if name == null then name = "label"
911 name = get_name(name)
912 escapemark_names[e] = name
916 private var escapemark_names = new HashMap[EscapeMark, String]
918 # Return a "const char*" variable associated to the classname of the dynamic type of an object
919 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
920 fun class_name_string(value: RuntimeVariable): String is abstract
924 protected var variables: HashMap[Variable, RuntimeVariable] = new HashMap[Variable, RuntimeVariable]
926 # Return the local runtime_variable associated to a Nit local variable
927 fun variable(variable: Variable): RuntimeVariable
929 if self.variables.has_key(variable) then
930 return self.variables[variable]
932 var name = self.get_name("var_{variable.name}")
933 var mtype = variable.declared_type.as(not null)
934 mtype = self.anchor(mtype)
935 var res = new RuntimeVariable(name, mtype, mtype)
936 self.add_decl("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
937 self.variables[variable] = res
942 # Return a new uninitialized local runtime_variable
943 fun new_var(mtype: MType): RuntimeVariable
945 mtype = self.anchor(mtype)
946 var name = self.get_name("var")
947 var res = new RuntimeVariable(name, mtype, mtype)
948 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
952 # Return a new uninitialized named runtime_variable
953 fun new_named_var(mtype: MType, name: String): RuntimeVariable
955 mtype = self.anchor(mtype)
956 var res = new RuntimeVariable(name, mtype, mtype)
957 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
961 # Correctly assign a left and a right value
962 # Boxing and unboxing is performed if required
963 fun assign(left, right: RuntimeVariable)
965 right = self.autobox(right, left.mtype)
966 self.add("{left} = {right};")
971 # Generate a alloc-instance + init-attributes
972 fun init_instance(mtype: MClassType): RuntimeVariable is abstract
974 # Generate an integer value
975 fun int_instance(value: Int): RuntimeVariable
977 var res = self.new_var(self.get_class("Int").mclass_type)
978 self.add("{res} = {value};")
982 # Generate a string value
983 fun string_instance(string: String): RuntimeVariable
985 var mtype = self.get_class("String").mclass_type
986 var name = self.get_name("varonce")
987 self.add_decl("static {mtype.ctype} {name};")
988 var res = self.new_var(mtype)
989 self.add("if ({name}) \{")
990 self.add("{res} = {name};")
991 self.add("\} else \{")
992 var native_mtype = self.get_class("NativeString").mclass_type
993 var nat = self.new_var(native_mtype)
994 self.add("{nat} = \"{string.escape_to_c}\";")
995 var length = self.int_instance(string.length)
996 self.add("{res} = {self.send(self.get_property("to_s_with_length", native_mtype), [nat, length]).as(not null)};")
997 self.add("{name} = {res};")
1002 # Generate an array value
1003 fun array_instance(array: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1005 # Get an instance of a array for a vararg
1006 fun vararg_instance(mpropdef: MPropDef, recv: RuntimeVariable, varargs: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1010 # Add a line in the main part of the generated C
1011 fun add(s: String) do self.writer.lines.add(s)
1014 # (used for local or global declaration)
1015 fun add_decl(s: String) do self.writer.decl_lines.add(s)
1017 # Request the presence of a global declaration
1018 fun require_declaration(key: String)
1020 self.writer.file.required_declarations.add(key)
1023 # Add a declaration in the local-header
1024 # The declaration is ensured to be present once
1025 fun declare_once(s: String)
1027 self.compiler.provide_declaration(s, s)
1028 self.require_declaration(s)
1031 # look for a needed .h and .c file for a given .nit source-file
1032 # FIXME: bad API, parameter should be a `MModule`, not its source-file
1033 fun add_extern(file: String)
1035 file = file.strip_extension(".nit")
1036 var tryfile = file + ".nit.h"
1037 if tryfile.file_exists then
1038 self.declare_once("#include \"{tryfile.basename("")}\"")
1039 self.compiler.files_to_copy.add(tryfile)
1041 tryfile = file + "_nit.h"
1042 if tryfile.file_exists then
1043 self.declare_once("#include \"{tryfile.basename("")}\"")
1044 self.compiler.files_to_copy.add(tryfile)
1047 if self.compiler.seen_extern.has(file) then return
1048 self.compiler.seen_extern.add(file)
1049 tryfile = file + ".nit.c"
1050 if not tryfile.file_exists then
1051 tryfile = file + "_nit.c"
1052 if not tryfile.file_exists then return
1054 var f = new ExternCFile(tryfile.basename(""), "")
1055 self.compiler.extern_bodies.add(f)
1056 self.compiler.files_to_copy.add(tryfile)
1059 # Return a new local runtime_variable initialized with the C expression `cexpr
`.
1060 fun new_expr(cexpr: String, mtype: MType): RuntimeVariable
1062 var res = new_var(mtype)
1063 self.add("{res} = {cexpr};")
1067 # Generate generic abort
1068 # used by aborts, asserts, casts, etc.
1069 fun add_abort(message: String)
1071 self.add("fprintf(stderr, \"Runtime error: %s\", \"{message.escape_to_c}\");")
1077 if self.current_node != null and self.current_node.location.file != null then
1078 self.add("fprintf(stderr, \" (%s:%d)\\n\", \"{self.current_node.location.file.filename.escape_to_c}\", {current_node.location.line_start});")
1080 self.add("fprintf(stderr, \"\\n\");")
1082 self.add("show_backtrace(1);")
1085 # Add a dynamic cast
1086 fun add_cast(value: RuntimeVariable, mtype: MType, tag: String)
1088 var res = self.type_test(value, mtype, tag)
1089 self.add("if (!{res}) \{")
1090 var cn = self.class_name_string(value)
1091 self.add("fprintf(stderr, \"Runtime error: Cast failed. Expected `%s
`, got `%s
`\", \"{mtype.to_s.escape_to_c}\", {cn});")
1096 # Generate a return with the value `s
`
1097 fun ret(s: RuntimeVariable)
1099 self.assign(self.frame.returnvar.as(not null), s)
1100 self.add("goto {self.frame.returnlabel.as(not null)};")
1103 # Compile a statement (if any)
1104 fun stmt(nexpr: nullable AExpr)
1106 if nexpr == null then return
1107 var old = self.current_node
1108 self.current_node = nexpr
1110 self.current_node = old
1113 # Compile an expression an return its result
1114 # `mtype
` is the expected return type, pass null if no specific type is expected.
1115 fun expr(nexpr: AExpr, mtype: nullable MType): RuntimeVariable
1117 var old = self.current_node
1118 self.current_node = nexpr
1119 var res = nexpr.expr(self).as(not null)
1120 if mtype != null then
1121 mtype = self.anchor(mtype)
1122 res = self.autobox(res, mtype)
1124 res = autoadapt(res, nexpr.mtype.as(not null))
1125 var implicit_cast_to = nexpr.implicit_cast_to
1126 if implicit_cast_to != null and not self.compiler.modelbuilder.toolcontext.opt_no_check_autocast.value then
1127 add_cast(res, implicit_cast_to, "auto")
1128 res = autoadapt(res, implicit_cast_to)
1130 self.current_node = old
1134 # Alias for `self.expr
(nexpr
, self.bool_type
)`
1135 fun expr_bool(nexpr: AExpr): RuntimeVariable do return expr(nexpr, bool_type)
1137 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1138 fun debug(message: String)
1140 var node = self.current_node
1141 if node == null then
1142 print "?: {message}"
1146 self.add("/* DEBUG: {message} */")
1150 # A C function associated to a Nit method
1151 # Because of customization, a given Nit method can be compiler more that once
1152 abstract class AbstractRuntimeFunction
1154 type COMPILER: AbstractCompiler
1155 type VISITOR: AbstractCompilerVisitor
1157 # The associated Nit method
1158 var mmethoddef: MMethodDef
1160 # The mangled c name of the runtime_function
1161 # Subclasses should redefine `build_c_name
` instead
1164 var res = self.c_name_cache
1165 if res != null then return res
1166 res = self.build_c_name
1167 self.c_name_cache = res
1171 # Non cached version of `c_name
`
1172 protected fun build_c_name: String is abstract
1174 protected var c_name_cache: nullable String writable = null
1176 # Implements a call of the runtime_function
1177 # May inline the body or generate a C function call
1178 fun call(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1180 # Generate the code for the `AbstractRuntimeFunction`
1181 # Warning: compile more than once compilation makes CC unhappy
1182 fun compile_to_c(compiler: COMPILER) is abstract
1185 # A runtime variable hold a runtime value in C.
1186 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1188 # 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.
1189 class RuntimeVariable
1190 # The name of the variable in the C code
1193 # The static type of the variable (as declard in C)
1196 # The current casted type of the variable (as known in Nit)
1197 var mcasttype: MType writable
1199 # If the variable exaclty a mcasttype?
1200 # false (usual value) means that the variable is a mcasttype or a subtype.
1201 var is_exact: Bool writable = false
1203 init(name: String, mtype: MType, mcasttype: MType)
1207 self.mcasttype = mcasttype
1208 assert not mtype.need_anchor
1209 assert not mcasttype.need_anchor
1212 redef fun to_s do return name
1217 if self.is_exact then
1218 exact_str = " exact"
1223 if self.mtype == self.mcasttype then
1224 type_str = "{mtype}{exact_str}"
1226 type_str = "{mtype}({mcasttype}{exact_str})"
1228 return "<{name}:{type_str}>"
1232 # A frame correspond to a visited property in a `GlobalCompilerVisitor`
1235 type VISITOR: AbstractCompilerVisitor
1237 # The associated visitor
1238 var visitor: VISITOR
1240 # The executed property.
1241 # A Method in case of a call, an attribute in case of a default initialization.
1242 var mpropdef: MPropDef
1244 # The static type of the receiver
1245 var receiver: MClassType
1247 # Arguments of the method (the first is the receiver)
1248 var arguments: Array[RuntimeVariable]
1250 # The runtime_variable associated to the return (in a function)
1251 var returnvar: nullable RuntimeVariable writable = null
1253 # The label at the end of the property
1254 var returnlabel: nullable String writable = null
1258 # Return the C type associated to a given Nit static type
1259 fun ctype: String do return "val*"
1261 fun ctypename: String do return "val"
1263 # Return the name of the C structure associated to a Nit live type
1264 fun c_name: String is abstract
1265 protected var c_name_cache: nullable String protected writable
1268 redef class MClassType
1271 var res = self.c_name_cache
1272 if res != null then return res
1273 res = "{mclass.intro_mmodule.name.to_cmangle}__{mclass.name.to_cmangle}"
1274 self.c_name_cache = res
1278 redef fun ctype: String
1280 if mclass.name == "Int" then
1282 else if mclass.name == "Bool" then
1284 else if mclass.name == "Char" then
1286 else if mclass.name == "Float" then
1288 else if mclass.name == "NativeString" then
1290 else if mclass.name == "NativeArray" then
1292 else if mclass.kind == extern_kind then
1299 redef fun ctypename: String
1301 if mclass.name == "Int" then
1303 else if mclass.name == "Bool" then
1305 else if mclass.name == "Char" then
1307 else if mclass.name == "Float" then
1309 else if mclass.name == "NativeString" then
1311 else if mclass.name == "NativeArray" then
1312 #return "{self.arguments.first.ctype}*"
1314 else if mclass.kind == extern_kind then
1322 redef class MGenericType
1325 var res = self.c_name_cache
1326 if res != null then return res
1328 for t in self.arguments do
1329 res = res + t.c_name
1331 self.c_name_cache = res
1336 redef class MParameterType
1339 var res = self.c_name_cache
1340 if res != null then return res
1341 res = "{self.mclass.c_name}_FT{self.rank}"
1342 self.c_name_cache = res
1347 redef class MVirtualType
1350 var res = self.c_name_cache
1351 if res != null then return res
1352 res = "{self.mproperty.intro.mclassdef.mclass.c_name}_VT{self.mproperty.name}"
1353 self.c_name_cache = res
1358 redef class MNullableType
1361 var res = self.c_name_cache
1362 if res != null then return res
1363 res = "nullable_{self.mtype.c_name}"
1364 self.c_name_cache = res
1370 # Return the name of the C structure associated to a Nit class
1371 fun c_name: String do
1372 var res = self.c_name_cache
1373 if res != null then return res
1374 res = "{intro_mmodule.name.to_cmangle}__{name.to_cmangle}"
1375 self.c_name_cache = res
1378 private var c_name_cache: nullable String
1381 redef class MProperty
1382 fun c_name: String do
1383 var res = self.c_name_cache
1384 if res != null then return res
1385 res = "{self.intro.c_name}"
1386 self.c_name_cache = res
1389 private var c_name_cache: nullable String
1392 redef class MPropDef
1393 type VISITOR: AbstractCompilerVisitor
1395 private var c_name_cache: nullable String
1397 # The mangled name associated to the property
1400 var res = self.c_name_cache
1401 if res != null then return res
1402 res = "{self.mclassdef.mmodule.name.to_cmangle}__{self.mclassdef.mclass.name.to_cmangle}__{self.mproperty.name.to_cmangle}"
1403 self.c_name_cache = res
1408 redef class MMethodDef
1409 # Can the body be inlined?
1410 fun can_inline(v: VISITOR): Bool
1412 var modelbuilder = v.compiler.modelbuilder
1413 if modelbuilder.mpropdef2npropdef.has_key(self) then
1414 var npropdef = modelbuilder.mpropdef2npropdef[self]
1415 return npropdef.can_inline
1416 else if self.mproperty.name == "init" then
1417 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
1424 # Inline the body in another visitor
1425 fun compile_inside_to_c(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable
1427 var modelbuilder = v.compiler.modelbuilder
1428 if modelbuilder.mpropdef2npropdef.has_key(self) then
1429 var npropdef = modelbuilder.mpropdef2npropdef[self]
1430 var oldnode = v.current_node
1431 v.current_node = npropdef
1432 self.compile_parameter_check(v, arguments)
1433 npropdef.compile_to_c(v, self, arguments)
1434 v.current_node = oldnode
1435 else if self.mproperty.name == "init" then
1436 var nclassdef = modelbuilder.mclassdef2nclassdef[self.mclassdef]
1437 var oldnode = v.current_node
1438 v.current_node = nclassdef
1439 self.compile_parameter_check(v, arguments)
1440 nclassdef.compile_to_c(v, self, arguments)
1441 v.current_node = oldnode
1448 # Generate type checks in the C code to check covariant parameters
1449 fun compile_parameter_check(v: VISITOR, arguments: Array[RuntimeVariable])
1451 if v.compiler.modelbuilder.toolcontext.opt_no_check_covariance.value then return
1453 for i in [0..msignature.arity[ do
1454 # skip test for vararg since the array is instantiated with the correct polymorphic type
1455 if msignature.vararg_rank == i then continue
1457 # skip if the cast is not required
1458 var origmtype = self.mproperty.intro.msignature.mparameters[i].mtype
1459 if not origmtype.need_anchor then continue
1461 # get the parameter type
1462 var mtype = self.msignature.mparameters[i].mtype
1465 # note that v decides if and how to implements the cast
1466 v.add("/* Covariant cast for argument {i} ({self.msignature.mparameters[i].name}) {arguments[i+1].inspect} isa {mtype} */")
1467 v.add_cast(arguments[i+1], mtype, "covariance")
1474 redef class APropdef
1475 fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1477 v.add("printf(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at {location.to_s}\\n\");")
1478 debug("Not yet implemented")
1481 fun can_inline: Bool do return true
1484 redef class AConcreteMethPropdef
1485 redef fun compile_to_c(v, mpropdef, arguments)
1487 for i in [0..mpropdef.msignature.arity[ do
1488 var variable = self.n_signature.n_params[i].variable.as(not null)
1489 v.assign(v.variable(variable), arguments[i+1])
1491 # Call the implicit super-init
1492 var auto_super_inits = self.auto_super_inits
1493 if auto_super_inits != null then
1494 var selfarg = [arguments.first]
1495 for auto_super_init in auto_super_inits do
1496 if auto_super_init.intro.msignature.arity == 0 then
1497 v.send(auto_super_init, selfarg)
1499 v.send(auto_super_init, arguments)
1503 v.stmt(self.n_block)
1506 redef fun can_inline
1508 if self.auto_super_inits != null then return false
1509 var nblock = self.n_block
1510 if nblock == null then return true
1511 if (mpropdef.mproperty.name == "==" or mpropdef.mproperty.name == "!=") and mpropdef.mclassdef.mclass.name == "Object" then return true
1512 if nblock isa ABlockExpr and nblock.n_expr.length == 0 then return true
1517 redef class AInternMethPropdef
1518 redef fun compile_to_c(v, mpropdef, arguments)
1520 var pname = mpropdef.mproperty.name
1521 var cname = mpropdef.mclassdef.mclass.name
1522 var ret = mpropdef.msignature.return_mtype
1524 ret = v.resolve_for(ret, arguments.first)
1526 if pname != "==" and pname != "!=" then
1527 v.adapt_signature(mpropdef, arguments)
1529 if cname == "Int" then
1530 if pname == "output" then
1531 v.add("printf(\"%ld\\n\", {arguments.first});")
1533 else if pname == "object_id" then
1534 v.ret(arguments.first)
1536 else if pname == "+" then
1537 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1539 else if pname == "-" then
1540 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1542 else if pname == "unary -" then
1543 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1545 else if pname == "succ" then
1546 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1548 else if pname == "prec" then
1549 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1551 else if pname == "*" then
1552 v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
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 == "lshift" then
1561 v.ret(v.new_expr("{arguments[0]} << {arguments[1]}", ret.as(not null)))
1563 else if pname == "rshift" then
1564 v.ret(v.new_expr("{arguments[0]} >> {arguments[1]}", ret.as(not null)))
1566 else if pname == "==" then
1567 v.ret(v.equal_test(arguments[0], arguments[1]))
1569 else if pname == "!=" then
1570 var res = v.equal_test(arguments[0], arguments[1])
1571 v.ret(v.new_expr("!{res}", ret.as(not null)))
1573 else if pname == "<" then
1574 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1576 else if pname == ">" then
1577 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1579 else if pname == "<=" then
1580 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1582 else if pname == ">=" then
1583 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1585 else if pname == "to_f" then
1586 v.ret(v.new_expr("(double){arguments[0]}", ret.as(not null)))
1588 else if pname == "ascii" then
1589 v.ret(v.new_expr("{arguments[0]}", ret.as(not null)))
1592 else if cname == "Char" then
1593 if pname == "output" then
1594 v.add("printf(\"%c\", {arguments.first});")
1596 else if pname == "object_id" then
1597 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1599 else if pname == "+" then
1600 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
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.equal_test(arguments[0], arguments[1]))
1608 else if pname == "!=" then
1609 var res = v.equal_test(arguments[0], arguments[1])
1610 v.ret(v.new_expr("!{res}", ret.as(not null)))
1612 else if pname == "succ" then
1613 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1615 else if pname == "prec" then
1616 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1618 else if pname == "<" then
1619 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1621 else if pname == ">" then
1622 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1624 else if pname == "<=" then
1625 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1627 else if pname == ">=" then
1628 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1630 else if pname == "to_i" then
1631 v.ret(v.new_expr("{arguments[0]}-'0'", ret.as(not null)))
1633 else if pname == "ascii" then
1634 v.ret(v.new_expr("(unsigned char){arguments[0]}", ret.as(not null)))
1637 else if cname == "Bool" then
1638 if pname == "output" then
1639 v.add("printf({arguments.first}?\"true\\n\":\"false\\n\");")
1641 else if pname == "object_id" then
1642 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1644 else if pname == "==" then
1645 v.ret(v.equal_test(arguments[0], arguments[1]))
1647 else if pname == "!=" then
1648 var res = v.equal_test(arguments[0], arguments[1])
1649 v.ret(v.new_expr("!{res}", ret.as(not null)))
1652 else if cname == "Float" then
1653 if pname == "output" then
1654 v.add("printf(\"%f\\n\", {arguments.first});")
1656 else if pname == "object_id" then
1657 v.ret(v.new_expr("(double){arguments.first}", ret.as(not null)))
1659 else if pname == "+" then
1660 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1662 else if pname == "-" then
1663 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1665 else if pname == "unary -" then
1666 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1668 else if pname == "succ" then
1669 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1671 else if pname == "prec" then
1672 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1674 else if pname == "*" then
1675 v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", 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.equal_test(arguments[0], arguments[1]))
1683 else if pname == "!=" then
1684 var res = v.equal_test(arguments[0], arguments[1])
1685 v.ret(v.new_expr("!{res}", 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 == ">=" then
1697 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1699 else if pname == "to_i" then
1700 v.ret(v.new_expr("(long){arguments[0]}", ret.as(not null)))
1703 else if cname == "NativeString" then
1704 if pname == "[]" then
1705 v.ret(v.new_expr("{arguments[0]}[{arguments[1]}]", ret.as(not null)))
1707 else if pname == "[]=" then
1708 v.add("{arguments[0]}[{arguments[1]}]={arguments[2]};")
1710 else if pname == "copy_to" then
1711 v.add("memcpy({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
1713 else if pname == "atoi" then
1714 v.ret(v.new_expr("atoi({arguments[0]});", ret.as(not null)))
1717 else if cname == "NativeArray" then
1718 v.native_array_def(pname, ret, arguments)
1721 if pname == "exit" then
1722 v.add("exit({arguments[1]});")
1724 else if pname == "sys" then
1725 v.ret(v.new_expr("glob_sys", ret.as(not null)))
1727 else if pname == "calloc_string" then
1728 v.ret(v.new_expr("(char*)nit_alloc({arguments[1]})", ret.as(not null)))
1730 else if pname == "calloc_array" then
1731 v.calloc_array(ret.as(not null), arguments)
1733 else if pname == "object_id" then
1734 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1736 else if pname == "is_same_type" then
1737 v.ret(v.is_same_type_test(arguments[0], arguments[1]))
1739 else if pname == "is_same_instance" then
1740 v.ret(v.equal_test(arguments[0], arguments[1]))
1742 else if pname == "output_class_name" then
1743 var nat = v.class_name_string(arguments.first)
1744 v.add("printf(\"%s\\n\", {nat});")
1746 else if pname == "native_class_name" then
1747 var nat = v.class_name_string(arguments.first)
1748 v.ret(v.new_expr("(char*){nat}", ret.as(not null)))
1750 else if pname == "force_garbage_collection" then
1751 v.add("nit_gcollect();")
1753 else if pname == "native_argc" then
1754 v.ret(v.new_expr("glob_argc", ret.as(not null)))
1756 else if pname == "native_argv" then
1757 v.ret(v.new_expr("glob_argv[{arguments[1]}]", ret.as(not null)))
1760 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{mpropdef} at {location.to_s}\\n\");")
1761 debug("Not implemented {mpropdef}")
1765 redef class AExternMethPropdef
1766 redef fun compile_to_c(v, mpropdef, arguments)
1769 var nextern = self.n_extern
1770 if nextern == null then
1771 v.add("fprintf(stderr, \"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1772 v.add("show_backtrace(1);")
1775 externname = nextern.text.substring(1, nextern.text.length-2)
1776 if location.file != null then
1777 var file = location.file.filename
1780 var res: nullable RuntimeVariable = null
1781 var ret = mpropdef.msignature.return_mtype
1783 ret = v.resolve_for(ret, arguments.first)
1784 res = v.new_var(ret)
1786 v.adapt_signature(mpropdef, arguments)
1789 v.add("{externname}({arguments.join(", ")});")
1791 v.add("{res} = {externname}({arguments.join(", ")});")
1797 redef class AExternInitPropdef
1798 redef fun compile_to_c(v, mpropdef, arguments)
1801 var nextern = self.n_extern
1802 if nextern == null then
1803 v.add("printf(\"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1804 v.add("show_backtrace(1);")
1807 externname = nextern.text.substring(1, nextern.text.length-2)
1808 if location.file != null then
1809 var file = location.file.filename
1812 v.adapt_signature(mpropdef, arguments)
1813 var ret = arguments.first.mtype
1814 var res = v.new_var(ret)
1818 v.add("{res} = {externname}({arguments.join(", ")});")
1823 redef class AAttrPropdef
1824 redef fun compile_to_c(v, mpropdef, arguments)
1826 if arguments.length == 1 then
1827 var res = v.read_attribute(self.mpropdef.mproperty, arguments.first)
1828 v.assign(v.frame.returnvar.as(not null), res)
1830 v.write_attribute(self.mpropdef.mproperty, arguments.first, arguments[1])
1834 fun init_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1836 var nexpr = self.n_expr
1837 if nexpr != null then
1838 var oldnode = v.current_node
1839 v.current_node = self
1840 var old_frame = v.frame
1841 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1843 var value = v.expr(nexpr, self.mpropdef.static_mtype)
1844 v.write_attribute(self.mpropdef.mproperty, recv, value)
1846 v.current_node = oldnode
1850 fun check_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1852 var nexpr = self.n_expr
1853 if nexpr != null then return
1855 var oldnode = v.current_node
1856 v.current_node = self
1857 var old_frame = v.frame
1858 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1860 # Force read to check the initialization
1861 v.read_attribute(self.mpropdef.mproperty, recv)
1863 v.current_node = oldnode
1867 redef class AClassdef
1868 private fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1870 if mpropdef == self.mfree_init then
1871 var super_inits = self.super_inits
1872 if super_inits != null then
1873 assert arguments.length == 1
1874 for su in super_inits do
1875 v.send(su, arguments)
1879 var recv = arguments.first
1881 # Collect undefined attributes
1882 for npropdef in self.n_propdefs do
1883 if npropdef isa AAttrPropdef and npropdef.n_expr == null then
1884 v.write_attribute(npropdef.mpropdef.mproperty, recv, arguments[i])
1894 redef class ADeferredMethPropdef
1895 redef fun compile_to_c(v, mpropdef, arguments) do
1896 var cn = v.class_name_string(arguments.first)
1897 v.add("fprintf(stderr, \"Runtime error: Abstract method `%s
` called on `%s
`\", \"{mpropdef.mproperty.name.escape_to_c}\", {cn});")
1900 redef fun can_inline do return true
1904 # Try to compile self as an expression
1905 # Do not call this method directly, use `v
.expr
` instead
1906 private fun expr(v: AbstractCompilerVisitor): nullable RuntimeVariable
1908 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\");")
1909 var mtype = self.mtype
1910 if mtype == null then
1913 var res = v.new_var(mtype)
1914 v.add("/* {res} = NOT YET {class_name} */")
1919 # Try to compile self as a statement
1920 # Do not call this method directly, use `v
.stmt
` instead
1921 private fun stmt(v: AbstractCompilerVisitor)
1924 if res != null then v.add("{res};")
1928 redef class ABlockExpr
1931 for e in self.n_expr do v.stmt(e)
1935 var last = self.n_expr.last
1936 for e in self.n_expr do
1937 if e == last then break
1940 return v.expr(last, null)
1944 redef class AVardeclExpr
1947 var variable = self.variable.as(not null)
1948 var ne = self.n_expr
1950 var i = v.expr(ne, variable.declared_type)
1951 v.assign(v.variable(variable), i)
1956 redef class AVarExpr
1959 var res = v.variable(self.variable.as(not null))
1960 var mtype = self.mtype.as(not null)
1961 return v.autoadapt(res, mtype)
1965 redef class AVarAssignExpr
1968 var variable = self.variable.as(not null)
1969 var i = v.expr(self.n_value, variable.declared_type)
1970 v.assign(v.variable(variable), i)
1974 var variable = self.variable.as(not null)
1975 var i = v.expr(self.n_value, variable.declared_type)
1976 v.assign(v.variable(variable), i)
1981 redef class AVarReassignExpr
1984 var variable = self.variable.as(not null)
1985 var vari = v.variable(variable)
1986 var value = v.expr(self.n_value, variable.declared_type)
1987 var res = v.compile_callsite(self.reassign_callsite.as(not null), [vari, value])
1989 v.assign(v.variable(variable), res)
1993 redef class ASelfExpr
1994 redef fun expr(v) do return v.frame.arguments.first
1997 redef class AContinueExpr
1998 redef fun stmt(v) do v.add("goto CONTINUE_{v.escapemark_name(self.escapemark)};")
2001 redef class ABreakExpr
2002 redef fun stmt(v) do v.add("goto BREAK_{v.escapemark_name(self.escapemark)};")
2005 redef class AReturnExpr
2008 var nexpr = self.n_expr
2009 if nexpr != null then
2010 var returnvar = v.frame.returnvar.as(not null)
2011 var i = v.expr(nexpr, returnvar.mtype)
2012 v.assign(returnvar, i)
2014 v.add("goto {v.frame.returnlabel.as(not null)};")
2018 redef class AAbortExpr
2019 redef fun stmt(v) do v.add_abort("Aborted")
2025 var cond = v.expr_bool(self.n_expr)
2026 v.add("if ({cond})\{")
2035 var res = v.new_var(self.mtype.as(not null))
2036 var cond = v.expr_bool(self.n_expr)
2037 v.add("if ({cond})\{")
2038 v.assign(res, v.expr(self.n_then.as(not null), null))
2040 v.assign(res, v.expr(self.n_else.as(not null), null))
2046 redef class AIfexprExpr
2049 var res = v.new_var(self.mtype.as(not null))
2050 var cond = v.expr_bool(self.n_expr)
2051 v.add("if ({cond})\{")
2052 v.assign(res, v.expr(self.n_then, null))
2054 v.assign(res, v.expr(self.n_else, null))
2063 v.stmt(self.n_block)
2064 var escapemark = self.escapemark
2065 if escapemark != null then
2066 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2071 redef class AWhileExpr
2075 var cond = v.expr_bool(self.n_expr)
2076 v.add("if (!{cond}) break;")
2077 v.stmt(self.n_block)
2078 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2080 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2084 redef class ALoopExpr
2088 v.stmt(self.n_block)
2089 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2091 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2095 redef class AForExpr
2098 # Shortcut on explicit range
2099 # Avoid the instantiation of the range and the iterator
2100 var nexpr = self.n_expr
2101 if self.variables.length == 1 and nexpr isa AOrangeExpr and not v.compiler.modelbuilder.toolcontext.opt_no_shortcut_range.value then
2102 var from = v.expr(nexpr.n_expr, null)
2103 var to = v.expr(nexpr.n_expr2, null)
2104 var variable = v.variable(variables.first)
2106 v.assign(variable, from)
2107 v.add("for(;;) \{ /* shortcut range */")
2109 var ok = v.send(v.get_property("<", variable.mtype), [variable, to])
2111 v.add("if(!{ok}) break;")
2113 v.stmt(self.n_block)
2115 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2116 var succ = v.send(v.get_property("succ", variable.mtype), [variable])
2118 v.assign(variable, succ)
2120 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2124 var cl = v.expr(self.n_expr, null)
2125 var it_meth = self.method_iterator
2126 assert it_meth != null
2127 var it = v.send(it_meth, [cl])
2130 var isok_meth = self.method_is_ok
2131 assert isok_meth != null
2132 var ok = v.send(isok_meth, [it])
2134 v.add("if(!{ok}) break;")
2135 if self.variables.length == 1 then
2136 var item_meth = self.method_item
2137 assert item_meth != null
2138 var i = v.send(item_meth, [it])
2140 v.assign(v.variable(variables.first), i)
2141 else if self.variables.length == 2 then
2142 var key_meth = self.method_key
2143 assert key_meth != null
2144 var i = v.send(key_meth, [it])
2146 v.assign(v.variable(variables[0]), i)
2147 var item_meth = self.method_item
2148 assert item_meth != null
2149 i = v.send(item_meth, [it])
2151 v.assign(v.variable(variables[1]), i)
2155 v.stmt(self.n_block)
2156 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2157 var next_meth = self.method_next
2158 assert next_meth != null
2159 v.send(next_meth, [it])
2161 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2165 redef class AAssertExpr
2168 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return
2170 var cond = v.expr_bool(self.n_expr)
2171 v.add("if (!{cond}) \{")
2175 v.add_abort("Assert '{nid.text}' failed")
2177 v.add_abort("Assert failed")
2186 var res = v.new_var(self.mtype.as(not null))
2187 var i1 = v.expr_bool(self.n_expr)
2188 v.add("if ({i1}) \{")
2191 var i2 = v.expr_bool(self.n_expr2)
2192 v.add("{res} = {i2};")
2198 redef class AImpliesExpr
2201 var res = v.new_var(self.mtype.as(not null))
2202 var i1 = v.expr_bool(self.n_expr)
2203 v.add("if (!{i1}) \{")
2206 var i2 = v.expr_bool(self.n_expr2)
2207 v.add("{res} = {i2};")
2213 redef class AAndExpr
2216 var res = v.new_var(self.mtype.as(not null))
2217 var i1 = v.expr_bool(self.n_expr)
2218 v.add("if (!{i1}) \{")
2221 var i2 = v.expr_bool(self.n_expr2)
2222 v.add("{res} = {i2};")
2228 redef class ANotExpr
2231 var cond = v.expr_bool(self.n_expr)
2232 return v.new_expr("!{cond}", self.mtype.as(not null))
2236 redef class AOrElseExpr
2239 var res = v.new_var(self.mtype.as(not null))
2240 var i1 = v.expr(self.n_expr, null)
2241 v.add("if ({i1}!=NULL) \{")
2244 var i2 = v.expr(self.n_expr2, null)
2251 redef class AIntExpr
2252 redef fun expr(v) do return v.new_expr("{self.value.to_s}", self.mtype.as(not null))
2255 redef class AFloatExpr
2256 redef fun expr(v) do return v.new_expr("{self.n_float.text}", self.mtype.as(not null)) # FIXME use value, not n_float
2259 redef class ACharExpr
2260 redef fun expr(v) do return v.new_expr("'{self.value.to_s.escape_to_c}'", self.mtype.as(not null))
2263 redef class AArrayExpr
2266 var mtype = self.mtype.as(MClassType).arguments.first
2267 var array = new Array[RuntimeVariable]
2268 for nexpr in self.n_exprs.n_exprs do
2269 var i = v.expr(nexpr, mtype)
2272 return v.array_instance(array, mtype)
2276 redef class AStringFormExpr
2277 redef fun expr(v) do return v.string_instance(self.value.as(not null))
2280 redef class ASuperstringExpr
2283 var array = new Array[RuntimeVariable]
2284 for ne in self.n_exprs do
2285 if ne isa AStringFormExpr and ne.value == "" then continue # skip empty sub-strings
2286 var i = v.expr(ne, null)
2289 var a = v.array_instance(array, v.object_type)
2290 var res = v.send(v.get_property("to_s", a.mtype), [a])
2295 redef class ACrangeExpr
2298 var i1 = v.expr(self.n_expr, null)
2299 var i2 = v.expr(self.n_expr2, null)
2300 var mtype = self.mtype.as(MClassType)
2301 var res = v.init_instance(mtype)
2302 var it = v.send(v.get_property("init", res.mtype), [res, i1, i2])
2307 redef class AOrangeExpr
2310 var i1 = v.expr(self.n_expr, null)
2311 var i2 = v.expr(self.n_expr2, null)
2312 var mtype = self.mtype.as(MClassType)
2313 var res = v.init_instance(mtype)
2314 var it = v.send(v.get_property("without_last", res.mtype), [res, i1, i2])
2319 redef class ATrueExpr
2320 redef fun expr(v) do return v.new_expr("1", self.mtype.as(not null))
2323 redef class AFalseExpr
2324 redef fun expr(v) do return v.new_expr("0", self.mtype.as(not null))
2327 redef class ANullExpr
2328 redef fun expr(v) do return v.new_expr("NULL", self.mtype.as(not null))
2331 redef class AIsaExpr
2334 var i = v.expr(self.n_expr, null)
2335 return v.type_test(i, self.cast_type.as(not null), "isa")
2339 redef class AAsCastExpr
2342 var i = v.expr(self.n_expr, null)
2343 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2345 v.add_cast(i, self.mtype.as(not null), "as")
2350 redef class AAsNotnullExpr
2353 var i = v.expr(self.n_expr, null)
2354 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2356 v.add("if ({i} == NULL) \{")
2357 v.add_abort("Cast failed")
2363 redef class AParExpr
2364 redef fun expr(v) do return v.expr(self.n_expr, null)
2367 redef class AOnceExpr
2370 var mtype = self.mtype.as(not null)
2371 var name = v.get_name("varonce")
2372 var guard = v.get_name(name + "_guard")
2373 v.add_decl("static {mtype.ctype} {name};")
2374 v.add_decl("static int {guard};")
2375 var res = v.new_var(mtype)
2376 v.add("if ({guard}) \{")
2377 v.add("{res} = {name};")
2379 var i = v.expr(self.n_expr, mtype)
2380 v.add("{res} = {i};")
2381 v.add("{name} = {res};")
2382 v.add("{guard} = 1;")
2388 redef class ASendExpr
2391 var recv = v.expr(self.n_expr, null)
2393 for a in self.raw_arguments.as(not null) do
2394 args.add(v.expr(a, null))
2396 return v.compile_callsite(self.callsite.as(not null), args)
2400 redef class ASendReassignFormExpr
2403 var recv = v.expr(self.n_expr, null)
2405 for a in self.raw_arguments.as(not null) do
2406 args.add(v.expr(a, null))
2408 var value = v.expr(self.n_value, null)
2410 var left = v.compile_callsite(self.callsite.as(not null), args)
2413 var res = v.compile_callsite(self.reassign_callsite.as(not null), [left, value])
2417 v.compile_callsite(self.write_callsite.as(not null), args)
2421 redef class ASuperExpr
2424 var recv = v.frame.arguments.first
2426 for a in self.n_args.n_exprs do
2427 args.add(v.expr(a, null))
2429 if args.length == 1 then
2430 args = v.frame.arguments
2433 var callsite = self.callsite
2434 if callsite != null then
2435 if callsite.mproperty.intro.msignature.arity == 0 then
2439 var res = v.compile_callsite(callsite, args)
2443 # stantard call-next-method
2444 return v.supercall(v.frame.mpropdef.as(MMethodDef), recv.mtype.as(MClassType), args)
2448 redef class ANewExpr
2451 var mtype = self.mtype.as(MClassType)
2453 var ctype = mtype.ctype
2454 if ctype == "val*" then
2455 recv = v.init_instance(mtype)
2456 else if ctype == "void*" then
2457 recv = v.new_expr("NULL/*special!*/", mtype)
2459 debug("cannot new {mtype}")
2463 for a in self.n_args.n_exprs do
2464 args.add(v.expr(a, null))
2466 var res2 = v.compile_callsite(self.callsite.as(not null), args)
2467 if res2 != null then
2468 #self.debug("got {res2} from {mproperty}. drop {recv}")
2475 redef class AAttrExpr
2478 var recv = v.expr(self.n_expr, null)
2479 var mproperty = self.mproperty.as(not null)
2480 return v.read_attribute(mproperty, recv)
2484 redef class AAttrAssignExpr
2487 var recv = v.expr(self.n_expr, null)
2488 var i = v.expr(self.n_value, null)
2489 var mproperty = self.mproperty.as(not null)
2490 v.write_attribute(mproperty, recv, i)
2494 redef class AAttrReassignExpr
2497 var recv = v.expr(self.n_expr, null)
2498 var value = v.expr(self.n_value, null)
2499 var mproperty = self.mproperty.as(not null)
2500 var attr = v.read_attribute(mproperty, recv)
2501 var res = v.compile_callsite(self.reassign_callsite.as(not null), [attr, value])
2503 v.write_attribute(mproperty, recv, res)
2507 redef class AIssetAttrExpr
2510 var recv = v.expr(self.n_expr, null)
2511 var mproperty = self.mproperty.as(not null)
2512 return v.isset_attribute(mproperty, recv)
2516 redef class ADebugTypeExpr
2525 redef class Array[E]
2526 # Return a new `Array` with the elements only contened in self and not in `o
`
2527 fun -(o: Array[E]): Array[E] do
2528 var res = new Array[E]
2529 for e in self do if not o.has(e) then res.add(e)
2535 # All `MProperty` associated to all `MClassDef` of `mclass
`
2536 fun properties(mclass: MClass): Set[MProperty] do
2537 if not self.properties_cache.has_key(mclass) then
2538 var properties = new HashSet[MProperty]
2539 var parents = new Array[MClass]
2540 if self.flatten_mclass_hierarchy.has(mclass) then
2541 parents.add_all(mclass.in_hierarchy(self).direct_greaters)
2543 for parent in parents do
2544 properties.add_all(self.properties(parent))
2546 for mclassdef in mclass.mclassdefs do
2547 for mprop in mclassdef.intro_mproperties do
2548 properties.add(mprop)
2551 self.properties_cache[mclass] = properties
2553 return properties_cache[mclass]
2555 private var properties_cache: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
2559 # Does this module use the legacy native interface?
2560 fun uses_legacy_ni: Bool is abstract
2562 # Write FFI results to file
2563 fun finalize_ffi(v: AbstractCompilerVisitor, modelbuilder: ModelBuilder) is abstract
2565 # Write nitni results to file
2566 fun finalize_nitni(v: AbstractCompilerVisitor) is abstract