1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2012 Jean Privat <jean@pryen.org>
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
18 module abstract_compiler
22 import auto_super_init
27 # Add compiling options
28 redef class ToolContext
30 var opt_output
: OptionString = new OptionString("Output file", "-o", "--output")
32 var opt_no_cc
: OptionBool = new OptionBool("Do not invoke C compiler", "--no-cc")
34 var opt_cc_path
: OptionArray = new OptionArray("Set include path for C header files (may be used more than once)", "--cc-path")
36 var opt_make_flags
: OptionString = new OptionString("Additional options to make", "--make-flags")
38 var opt_compile_dir
: OptionString = new OptionString("Directory used to generate temporary files", "--compile-dir")
40 var opt_hardening
: OptionBool = new OptionBool("Generate contracts in the C code against bugs in the compiler", "--hardening")
42 var opt_no_shortcut_range
: OptionBool = new OptionBool("Always insantiate a range and its iterator on 'for' loops", "--no-shortcut-range")
43 # --no-check-covariance
44 var opt_no_check_covariance
: OptionBool = new OptionBool("Disable type tests of covariant parameters (dangerous)", "--no-check-covariance")
45 # --no-check-initialization
46 var opt_no_check_initialization
: OptionBool = new OptionBool("Disable isset tests at the end of constructors (dangerous)", "--no-check-initialization")
48 var opt_no_check_assert
: OptionBool = new OptionBool("Disable the evaluation of explicit 'assert' and 'as' (dangerous)", "--no-check-assert")
50 var opt_no_check_autocast
: OptionBool = new OptionBool("Disable implicit casts on unsafe expression usage (dangerous)", "--no-check-autocast")
52 var opt_no_check_other
: OptionBool = new OptionBool("Disable implicit tests: unset attribute, null receiver (dangerous)", "--no-check-other")
53 # --typing-test-metrics
54 var opt_typing_test_metrics
: OptionBool = new OptionBool("Enable static and dynamic count of all type tests", "--typing-test-metrics")
56 var opt_no_stacktrace
: OptionBool = new OptionBool("Disables libunwind and generation of C stack traces (can be problematic when compiling to targets such as Android or NaCl)", "--no-stacktrace")
57 # --stack-trace-C-to-Nit-name-binding
58 var opt_stacktrace
: OptionBool = new OptionBool("Enables the use of gperf to bind C to Nit function names when encountering a Stack trace at runtime", "--nit-stacktrace")
63 self.option_context
.add_option
(self.opt_output
, self.opt_no_cc
, self.opt_make_flags
, self.opt_compile_dir
, self.opt_hardening
, self.opt_no_shortcut_range
)
64 self.option_context
.add_option
(self.opt_no_check_covariance
, self.opt_no_check_initialization
, self.opt_no_check_assert
, self.opt_no_check_autocast
, self.opt_no_check_other
)
65 self.option_context
.add_option
(self.opt_typing_test_metrics
)
66 self.option_context
.add_option
(self.opt_stacktrace
)
67 self.option_context
.add_option
(self.opt_no_stacktrace
)
71 redef class ModelBuilder
72 redef init(model
, toolcontext
)
74 if toolcontext
.opt_no_stacktrace
.value
and toolcontext
.opt_stacktrace
.value
then
75 print
"Cannot use --nit-stacktrace when --no-stacktrace is activated"
82 # The compilation directory
83 var compile_dir
: String
85 # Simple indirection to `Toolchain::write_and_make`
86 protected fun write_and_make
(compiler
: AbstractCompiler)
88 var platform
= compiler
.mainmodule
.target_platform
90 if platform
== null then
91 toolchain
= new MakefileToolchain(toolcontext
)
93 toolchain
= platform
.toolchain
(toolcontext
)
95 compile_dir
= toolchain
.compile_dir
96 toolchain
.write_and_make compiler
101 fun toolchain
(toolcontext
: ToolContext): Toolchain is abstract
105 var toolcontext
: ToolContext
107 fun compile_dir
: String
109 var compile_dir
= toolcontext
.opt_compile_dir
.value
110 if compile_dir
== null then compile_dir
= ".nit_compile"
114 fun write_and_make
(compiler
: AbstractCompiler) is abstract
117 class MakefileToolchain
119 # The list of directories to search for included C headers (-I for C compilers)
120 # The list is initially set with :
121 # * the toolcontext --cc-path option
122 # * the NIT_CC_PATH environment variable
123 # * some heuristics including the NIT_DIR environment variable and the progname of the process
124 # Path can be added (or removed) by the client
125 var cc_paths
= new Array[String]
127 protected fun gather_cc_paths
129 # Look for the the Nit clib path
130 var path_env
= "NIT_DIR".environ
131 if not path_env
.is_empty
then
132 var libname
= "{path_env}/clib"
133 if libname
.file_exists
then cc_paths
.add
(libname
)
136 var libname
= "{sys.program_name.dirname}/../clib"
137 if libname
.file_exists
then cc_paths
.add
(libname
.simplify_path
)
139 if cc_paths
.is_empty
then
140 toolcontext
.error
(null, "Cannot determine the nit clib path. define envvar NIT_DIR.")
143 # Add user defined cc_paths
144 cc_paths
.append
(toolcontext
.opt_cc_path
.value
)
146 path_env
= "NIT_CC_PATH".environ
147 if not path_env
.is_empty
then
148 cc_paths
.append
(path_env
.split_with
(':'))
152 redef fun write_and_make
(compiler
)
156 var mainmodule
= compiler
.mainmodule
157 var compile_dir
= compile_dir
159 # Generate the .h and .c files
160 # A single C file regroups many compiled rumtime functions
161 # Note that we do not try to be clever an a small change in a Nit source file may change the content of all the generated .c files
163 self.toolcontext
.info
("*** WRITING C ***", 1)
167 var cfiles
= new Array[String]
168 write_files
(compiler
, compile_dir
, cfiles
)
170 # Generate the Makefile
172 write_makefile
(compiler
, compile_dir
, cfiles
)
175 self.toolcontext
.info
("*** END WRITING C: {time1-time0} ***", 2)
177 # Execute the Makefile
179 if self.toolcontext
.opt_no_cc
.value
then return
182 self.toolcontext
.info
("*** COMPILING C ***", 1)
184 compile_c_code
(compiler
, compile_dir
)
187 self.toolcontext
.info
("*** END COMPILING C: {time1-time0} ***", 2)
190 fun write_files
(compiler
: AbstractCompiler, compile_dir
: String, cfiles
: Array[String])
192 if self.toolcontext
.opt_stacktrace
.value
then compiler
.build_c_to_nit_bindings
194 # Add gc_choser.h to aditionnal bodies
195 var gc_chooser
= new ExternCFile("gc_chooser.c", "-DWITH_LIBGC")
196 compiler
.extern_bodies
.add
(gc_chooser
)
197 compiler
.files_to_copy
.add
"{cc_paths.first}/gc_chooser.c"
198 compiler
.files_to_copy
.add
"{cc_paths.first}/gc_chooser.h"
201 var m2m
= toolcontext
.modelbuilder
.mmodule2nmodule
202 for m
in compiler
.mainmodule
.in_importation
.greaters
do if m2m
.keys
.has
(m
) then
204 compiler
.finalize_ffi_for_module
(amodule
)
207 # Copy original .[ch] files to compile_dir
208 for src
in compiler
.files_to_copy
do
209 var basename
= src
.basename
("")
210 var dst
= "{compile_dir}/{basename}"
214 var hfilename
= compiler
.header
.file
.name
+ ".h"
215 var hfilepath
= "{compile_dir}/{hfilename}"
216 var h
= new OFStream.open
(hfilepath
)
217 for l
in compiler
.header
.decl_lines
do
221 for l
in compiler
.header
.lines
do
227 for f
in compiler
.files
do
229 var hfile
: nullable OFStream = null
231 var cfilename
= "{f.name}.0.h"
232 var cfilepath
= "{compile_dir}/{cfilename}"
233 hfile
= new OFStream.open
(cfilepath
)
234 hfile
.write
"#include \"{hfilename}\
"\n"
235 for key
in f
.required_declarations
do
236 if not compiler
.provided_declarations
.has_key
(key
) then
237 var node
= compiler
.requirers_of_declarations
.get_or_null
(key
)
239 node
.debug
"No provided declaration for {key}"
241 print
"No provided declaration for {key}"
245 hfile
.write compiler
.provided_declarations
[key
]
249 var file
: nullable OFStream = null
250 for vis
in f
.writers
do
251 if vis
== compiler
.header
then continue
252 var total_lines
= vis
.lines
.length
+ vis
.decl_lines
.length
253 if total_lines
== 0 then continue
255 if file
== null or count
> 10000 then
257 if file
!= null then file
.close
258 cfilename
= "{f.name}.{i}.c"
259 cfilepath
= "{compile_dir}/{cfilename}"
260 self.toolcontext
.info
("new C source files to compile: {cfilepath}", 3)
261 cfiles
.add
(cfilename
)
262 file
= new OFStream.open
(cfilepath
)
263 file
.write
"#include \"{f.name}.0.h\
"\n"
266 for l
in vis
.decl_lines
do
270 for l
in vis
.lines
do
275 if file
!= null then file
.close
278 self.toolcontext
.info
("Total C source files to compile: {cfiles.length}", 2)
281 fun write_makefile
(compiler
: AbstractCompiler, compile_dir
: String, cfiles
: Array[String])
283 var mainmodule
= compiler
.mainmodule
285 var outname
= self.toolcontext
.opt_output
.value
286 if outname
== null then
287 outname
= "{mainmodule.name}"
290 var orig_dir
=".." # FIXME only works if `compile_dir` is a subdirectory of cwd
291 var outpath
= orig_dir
.join_path
(outname
).simplify_path
292 var makename
= "{mainmodule.name}.mk"
293 var makepath
= "{compile_dir}/{makename}"
294 var makefile
= new OFStream.open
(makepath
)
298 cc_includes
+= " -I \"" + p + "\
""
301 var linker_options
= new HashSet[String]
302 var m2m
= toolcontext
.modelbuilder
.mmodule2nmodule
303 for m
in mainmodule
.in_importation
.greaters
do if m2m
.keys
.has
(m
) then
305 var libs
= amod
.collect_linker_libs
306 if libs
!= null then linker_options
.add_all
(libs
)
309 if not toolcontext
.opt_no_stacktrace
.value
then linker_options
.add
("-lunwind")
311 makefile
.write
("CC = ccache cc\nCFLAGS = -g -O2\nCINCL = {cc_includes}\nLDFLAGS ?= \nLDLIBS ?= -lm -lgc {linker_options.join(" ")}\n\n")
312 makefile
.write
("all: {outpath}\n\n")
314 var ofiles
= new Array[String]
315 var dep_rules
= new Array[String]
316 # Compile each generated file
318 var o
= f
.strip_extension
(".c") + ".o"
319 makefile
.write
("{o}: {f}\n\t$(CC) $(CFLAGS) $(CINCL) -D NONITCNI -c -o {o} {f}\n\n")
324 # Compile each required extern body into a specific .o
325 for f
in compiler
.extern_bodies
do
326 var o
= f
.makefile_rule_name
327 var ff
= f
.filename
.basename
("")
328 makefile
.write
("{o}: {ff}\n")
329 makefile
.write
("\t{f.makefile_rule_content}\n\n")
330 dep_rules
.add
(f
.makefile_rule_name
)
335 makefile
.write
("{outpath}: {dep_rules.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath} {ofiles.join(" ")} $(LDLIBS)\n\n")
337 makefile
.write
("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n\n")
339 self.toolcontext
.info
("Generated makefile: {makepath}", 2)
342 fun compile_c_code
(compiler
: AbstractCompiler, compile_dir
: String)
344 var makename
= "{compiler.mainmodule.name}.mk" # FIXME duplicated from write_makefile
346 var makeflags
= self.toolcontext
.opt_make_flags
.value
347 if makeflags
== null then makeflags
= ""
348 self.toolcontext
.info
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags}", 2)
351 if self.toolcontext
.verbose_level
>= 3 then
352 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1")
354 res
= sys
.system
("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1 >/dev/null")
357 toolcontext
.error
(null, "make failed! Error code: {res}.")
362 # Singleton that store the knowledge about the compilation process
363 abstract class AbstractCompiler
364 type VISITOR: AbstractCompilerVisitor
366 # Table corresponding c_names to nit names (methods)
367 var names
= new HashMap[String, String]
369 # The main module of the program currently compiled
370 # Is assigned during the separate compilation
371 var mainmodule
: MModule writable
373 # The real main module of the program
374 var realmainmodule
: MModule
376 # The modeulbuilder used to know the model and the AST
377 var modelbuilder
: ModelBuilder protected writable
379 # Is hardening asked? (see --hardening)
380 fun hardening
: Bool do return self.modelbuilder
.toolcontext
.opt_hardening
.value
382 init(mainmodule
: MModule, modelbuilder
: ModelBuilder)
384 self.mainmodule
= mainmodule
385 self.realmainmodule
= mainmodule
386 self.modelbuilder
= modelbuilder
389 # Force the creation of a new file
390 # The point is to avoid contamination between must-be-compiled-separately files
391 fun new_file
(name
: String): CodeFile
393 var f
= new CodeFile(name
)
398 # The list of all associated files
399 # Used to generate .c files
400 var files
: List[CodeFile] = new List[CodeFile]
402 # Initialize a visitor specific for a compiler engine
403 fun new_visitor
: VISITOR is abstract
405 # Where global declaration are stored (the main .h)
406 var header
: CodeWriter writable
408 # Provide a declaration that can be requested (before or latter) by a visitor
409 fun provide_declaration
(key
: String, s
: String)
411 if self.provided_declarations
.has_key
(key
) then
412 assert self.provided_declarations
[key
] == s
414 self.provided_declarations
[key
] = s
417 private var provided_declarations
= new HashMap[String, String]
419 private var requirers_of_declarations
= new HashMap[String, ANode]
421 # Builds the .c and .h files to be used when generating a Stack Trace
422 # Binds the generated C function names to Nit function names
423 fun build_c_to_nit_bindings
425 var compile_dir
= modelbuilder
.compile_dir
427 var stream
= new OFStream.open
("{compile_dir}/C_fun_names")
428 stream
.write
("%\{\n#include \"c_functions_hash.h\"\n%\}\n")
429 stream
.write
("%define lookup-function-name get_nit_name\n")
430 stream
.write
("struct C_Nit_Names;\n")
432 stream
.write
("####\n")
433 for i
in names
.keys
do
435 stream
.write
(",\t\"")
436 stream.write(names[i])
439 stream
.write
("####\n")
443 stream
= new OFStream.open
("{compile_dir}/c_functions_hash.h")
444 stream
.write
("typedef struct C_Nit_Names\{char* name; char* nit_name;\}C_Nit_Names;\n")
445 stream
.write
("const struct C_Nit_Names* get_nit_name(register const char *str, register unsigned int len);\n")
448 var x
= new Process("gperf","{compile_dir}/C_fun_names","-t","-7","--output-file={compile_dir}/c_functions_hash.c","-C")
451 extern_bodies
.add
(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
455 # This method call compile_header_strucs method that has to be refined
456 fun compile_header
do
458 var toolctx
= modelbuilder
.toolcontext
459 self.header
.add_decl
("#include <stdlib.h>")
460 self.header
.add_decl
("#include <stdio.h>")
461 self.header
.add_decl
("#include <string.h>")
462 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
464 compile_header_structs
465 compile_nitni_structs
467 # Signal handler function prototype
468 self.header
.add_decl
("void show_backtrace(int);")
470 # Global variable used by intern methods
471 self.header
.add_decl
("extern int glob_argc;")
472 self.header
.add_decl
("extern char **glob_argv;")
473 self.header
.add_decl
("extern val *glob_sys;")
476 # Declaration of structures for live Nit types
477 protected fun compile_header_structs
is abstract
479 # Declaration of structures for nitni undelying the FFI
480 protected fun compile_nitni_structs
is abstract
482 # Generate the main C function.
484 # * allocate the Sys object if it exists
485 # * call init if is exists
486 # * call main if it exists
487 fun compile_main_function
489 var v
= self.new_visitor
490 if modelbuilder
.toolcontext
.opt_stacktrace
.value
then
491 v
.add_decl
("#include \"c_functions_hash
.h\
"")
493 v
.add_decl
("#include <signal.h>")
494 if not modelbuilder
.toolcontext
.opt_no_stacktrace
.value
then
495 v
.add_decl
("#define UNW_LOCAL_ONLY")
496 v
.add_decl
("#include <libunwind.h>")
498 v
.add_decl
("int glob_argc;")
499 v
.add_decl
("char **glob_argv;")
500 v
.add_decl
("val *glob_sys;")
502 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
503 for tag
in count_type_test_tags
do
504 v
.add_decl
("long count_type_test_resolved_{tag};")
505 v
.add_decl
("long count_type_test_unresolved_{tag};")
506 v
.add_decl
("long count_type_test_skipped_{tag};")
507 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
508 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
509 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
513 v
.add_decl
("void sig_handler(int signo)\{")
514 v
.add_decl
("printf(\"Caught signal
: %s\\n\
", strsignal(signo));")
515 v
.add_decl
("show_backtrace(signo);")
518 v
.add_decl
("void show_backtrace (int signo) \{")
519 if not modelbuilder
.toolcontext
.opt_no_stacktrace
.value
then
520 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
521 v
.add_decl
("unw_cursor_t cursor;")
522 v
.add_decl
("if(opt==NULL)\{")
523 v
.add_decl
("unw_context_t uc;")
524 v
.add_decl
("unw_word_t ip;")
525 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
526 v
.add_decl
("unw_getcontext(&uc);")
527 v
.add_decl
("unw_init_local(&cursor, &uc);")
528 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
529 v
.add_decl
("printf(\"-- Stack Trace ------------------------------\\n\
");")
530 v
.add_decl
("printf(\"-------------------------------------------------\\n\
");")
531 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
532 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
533 if modelbuilder
.toolcontext
.opt_stacktrace
.value
then
534 v
.add_decl
(" const C_Nit_Names* recv = get_nit_name(procname, strlen(procname));")
535 v
.add_decl
(" if (recv != 0)\{")
536 v
.add_decl
(" printf(\"` %s\\n\", recv->nit_name);")
537 v.add_decl(" \}else\{")
538 v.add_decl(" printf(\"` %s\\n\
", procname);")
541 v
.add_decl
(" printf(\"` %s \\n\",procname);")
544 v.add_decl("printf(\"-------------------------------------------------\\n\");")
545 v.add_decl("free(procname);")
548 v.add_decl("exit(signo);")
551 v.add_decl("int main(int argc, char** argv) \{")
553 v.add("signal(SIGABRT, sig_handler);")
554 v.add("signal(SIGFPE, sig_handler);")
555 v.add("signal(SIGILL, sig_handler);")
556 v.add("signal(SIGINT, sig_handler);")
557 v.add("signal(SIGTERM, sig_handler);")
558 v.add("signal(SIGSEGV, sig_handler);")
559 v.add("signal(SIGPIPE, sig_handler);")
561 v.add("glob_argc = argc; glob_argv = argv;")
562 v.add("initialize_gc_option();")
563 var main_type = mainmodule.sys_type
564 if main_type != null then
565 var mainmodule = v.compiler.mainmodule
566 var glob_sys = v.init_instance(main_type)
567 v.add("glob_sys = {glob_sys};")
568 var main_init = mainmodule.try_get_primitive_method("init", main_type.mclass)
569 if main_init != null then
570 v.send(main_init, [glob_sys])
572 var main_method = mainmodule.try_get_primitive_method("main", main_type.mclass)
573 if main_method != null then
574 v.send(main_method, [glob_sys])
578 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
579 v.add_decl("long count_type_test_resolved_total = 0;")
580 v.add_decl("long count_type_test_unresolved_total = 0;")
581 v.add_decl("long count_type_test_skipped_total = 0;")
582 v.add_decl("long count_type_test_total_total = 0;")
583 for tag in count_type_test_tags do
584 v.add_decl("long count_type_test_total_{tag};")
585 v.add("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
586 v.add("count_type_test_resolved_total += count_type_test_resolved_{tag};")
587 v.add("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
588 v.add("count_type_test_skipped_total += count_type_test_skipped_{tag};")
589 v.add("count_type_test_total_total += count_type_test_total_{tag};")
591 v.add("printf(\"# dynamic count_type_test: total %l\\n\");")
592 v.add("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\");")
593 var tags = count_type_test_tags.to_a
596 v.add("printf(\"{tag}\");")
597 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
598 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
599 v.add("printf(\"\\t%ld (%.2f%%)\", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
600 v.add("printf(\"\\t%ld (%.2f%%)\\n\", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
608 # List of additional files required to compile (FFI)
609 var extern_bodies = new Array[ExternFile]
611 # List of source files to copy over to the compile dir
612 var files_to_copy = new Array[String]
614 # This is used to avoid adding an extern file more than once
615 private var seen_extern = new ArraySet[String]
617 # Generate code that initialize the attributes on a new instance
618 fun generate_init_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
620 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
621 self.mainmodule.linearize_mclassdefs(cds)
623 var n = self.modelbuilder.mclassdef2nclassdef[cd]
624 for npropdef in n.n_propdefs do
625 if npropdef isa AAttrPropdef then
626 npropdef.init_expr(v, recv)
632 # Generate code that check if an attribute is correctly initialized
633 fun generate_check_attr(v: VISITOR, recv: RuntimeVariable, mtype: MClassType)
635 var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
636 self.mainmodule.linearize_mclassdefs(cds)
638 var n = self.modelbuilder.mclassdef2nclassdef[cd]
639 for npropdef in n.n_propdefs do
640 if npropdef isa AAttrPropdef then
641 npropdef.check_expr(v, recv)
649 var count_type_test_tags: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
650 var count_type_test_resolved: HashMap[String, Int] = init_count_type_test_tags
651 var count_type_test_unresolved: HashMap[String, Int] = init_count_type_test_tags
652 var count_type_test_skipped: HashMap[String, Int] = init_count_type_test_tags
654 protected fun init_count_type_test_tags: HashMap[String, Int]
656 var res = new HashMap[String, Int]
657 for tag in count_type_test_tags do
663 # Display stats about compilation process
665 # * type tests against resolved types (`x
isa Collection[Animal]`)
666 # * type tests against unresolved types (`x
isa Collection[E
]`)
667 # * type tests skipped
672 if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
673 print "# static count_type_test"
674 print "\tresolved:\tunresolved\tskipped\ttotal"
675 var count_type_test_total = init_count_type_test_tags
676 count_type_test_resolved["total"] = 0
677 count_type_test_unresolved["total"] = 0
678 count_type_test_skipped["total"] = 0
679 count_type_test_total["total"] = 0
680 for tag in count_type_test_tags do
681 count_type_test_total[tag] = count_type_test_resolved[tag] + count_type_test_unresolved[tag] + count_type_test_skipped[tag]
682 count_type_test_resolved["total"] += count_type_test_resolved[tag]
683 count_type_test_unresolved["total"] += count_type_test_unresolved[tag]
684 count_type_test_skipped["total"] += count_type_test_skipped[tag]
685 count_type_test_total["total"] += count_type_test_total[tag]
687 var count_type_test = count_type_test_total["total"]
688 var tags = count_type_test_tags.to_a
692 printn "\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
693 printn "\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
694 printn "\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
695 printn "\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
702 # Avoid division by zero by returning the string "n/a"
703 fun div(a,b:Int):String
705 if b == 0 then return "n/a"
706 return ((a*10000/b).to_f / 100.0).to_precision(2)
709 fun finalize_ffi_for_module(nmodule: AModule)
711 var visitor = new_visitor
712 nmodule.finalize_ffi(visitor, modelbuilder)
713 nmodule.finalize_nitni(visitor)
717 # A file unit (may be more than one file if
718 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
721 var writers = new Array[CodeWriter]
722 var required_declarations = new HashSet[String]
725 # Where to store generated lines
728 var lines: List[String] = new List[String]
729 var decl_lines: List[String] = new List[String]
731 # Add a line in the main part of the generated C
732 fun add(s: String) do self.lines.add(s)
735 # (used for local or global declaration)
736 fun add_decl(s: String) do self.decl_lines.add(s)
741 file.writers.add(self)
745 # A visitor on the AST of property definition that generate the C code.
746 abstract class AbstractCompilerVisitor
748 type COMPILER: AbstractCompiler
750 # The associated compiler
751 var compiler: COMPILER
753 # The current visited AST node
754 var current_node: nullable ANode writable = null
756 # The current `Frame`
757 var frame: nullable Frame writable
759 # Alias for self.compiler.mainmodule.object_type
760 fun object_type: MClassType do return self.compiler.mainmodule.object_type
762 # Alias for self.compiler.mainmodule.bool_type
763 fun bool_type: MClassType do return self.compiler.mainmodule.bool_type
765 var writer: CodeWriter
767 init(compiler: COMPILER)
769 self.compiler = compiler
770 self.writer = new CodeWriter(compiler.files.last)
773 # Force to get the primitive class named `name
` or abort
774 fun get_class(name: String): MClass do return self.compiler.mainmodule.get_primitive_class(name)
776 # Force to get the primitive property named `name
` in the instance `recv
` or abort
777 fun get_property(name: String, recv: MType): MMethod
779 assert recv isa MClassType
780 return self.compiler.modelbuilder.force_get_primitive_method(self.current_node.as(not null), name, recv.mclass, self.compiler.mainmodule)
783 fun compile_callsite(callsite: CallSite, args: Array[RuntimeVariable]): nullable RuntimeVariable
785 return self.send(callsite.mproperty, args)
788 fun calloc_array(ret_type: MType, arguments: Array[RuntimeVariable]) is abstract
790 fun native_array_def(pname: String, ret_type: nullable MType, arguments: Array[RuntimeVariable]) is abstract
792 # Transform varargs, in raw arguments, into a single argument of type `Array`
793 # Note: this method modify the given `args
`
794 # If there is no vararg, then `args
` is not modified.
795 fun varargize(mpropdef: MPropDef, msignature: MSignature, args: Array[RuntimeVariable])
797 var recv = args.first
798 var vararg_rank = msignature.vararg_rank
799 if vararg_rank >= 0 then
800 assert args.length >= msignature.arity + 1 # because of self
802 args = new Array[RuntimeVariable]
804 args.add(rawargs.first) # recv
806 for i in [0..vararg_rank[ do
807 args.add(rawargs[i+1])
810 var vararg_lastrank = vararg_rank + rawargs.length-1-msignature.arity
811 var vararg = new Array[RuntimeVariable]
812 for i in [vararg_rank..vararg_lastrank] do
813 vararg.add(rawargs[i+1])
816 var elttype = msignature.mparameters[vararg_rank].mtype
817 args.add(self.vararg_instance(mpropdef, recv, vararg, elttype))
819 for i in [vararg_lastrank+1..rawargs.length-1[ do
820 args.add(rawargs[i+1])
823 rawargs.add_all(args)
829 # Anchor a type to the main module and the current receiver
830 fun anchor(mtype: MType): MType
832 if not mtype.need_anchor then return mtype
833 return mtype.anchor_to(self.compiler.mainmodule, self.frame.receiver)
836 fun resolve_for(mtype: MType, recv: RuntimeVariable): MType
838 if not mtype.need_anchor then return mtype
839 return mtype.resolve_for(recv.mcasttype, self.frame.receiver, self.compiler.mainmodule, true)
842 # Unsafely cast a value to a new type
843 # ie the result share the same C variable but my have a different mcasttype
844 # NOTE: if the adaptation is useless then `value
` is returned as it.
845 # ENSURE: `result
.name
== value
.name
`
846 fun autoadapt(value: RuntimeVariable, mtype: MType): RuntimeVariable
848 mtype = self.anchor(mtype)
849 var valmtype = value.mcasttype
850 if valmtype.is_subtype(self.compiler.mainmodule, null, mtype) then
854 if valmtype isa MNullableType and valmtype.mtype.is_subtype(self.compiler.mainmodule, null, mtype) then
855 var res = new RuntimeVariable(value.name, valmtype, valmtype.mtype)
858 var res = new RuntimeVariable(value.name, valmtype, mtype)
863 # Generate a super call from a method definition
864 fun supercall(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
866 fun adapt_signature(m: MMethodDef, args: Array[RuntimeVariable]) is abstract
868 # Box or unbox a value to another type iff a C type conversion is needed
869 # ENSURE: `result
.mtype
.ctype
== mtype
.ctype
`
870 fun autobox(value: RuntimeVariable, mtype: MType): RuntimeVariable is abstract
872 # Generate a polymorphic subtype test
873 fun type_test(value: RuntimeVariable, mtype: MType, tag: String): RuntimeVariable is abstract
875 # Generate the code required to dynamically check if 2 objects share the same runtime type
876 fun is_same_type_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
878 # Generate a Nit "is" for two runtime_variables
879 fun equal_test(value1, value2: RuntimeVariable): RuntimeVariable is abstract
883 # Generate a static call on a method definition
884 fun call(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
886 # Generate a polymorphic send for the method `m
` and the arguments `args
`
887 fun send(m: MMethod, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
889 # Generate a monomorphic send for the method `m
`, the type `t
` and the arguments `args
`
890 fun monomorphic_send(m: MMethod, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
892 assert t isa MClassType
893 var propdef = m.lookup_first_definition(self.compiler.mainmodule, t)
894 return self.call(propdef, t, args)
897 # Generate a monomorphic super send from the method `m
`, the type `t
` and the arguments `args
`
898 fun monomorphic_super_send(m: MMethodDef, t: MType, args: Array[RuntimeVariable]): nullable RuntimeVariable
900 assert t isa MClassType
901 m = m.lookup_next_definition(self.compiler.mainmodule, t)
902 return self.call(m, t, args)
905 # Attributes handling
907 # Generate a polymorphic attribute is_set test
908 fun isset_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
910 # Generate a polymorphic attribute read
911 fun read_attribute(a: MAttribute, recv: RuntimeVariable): RuntimeVariable is abstract
913 # Generate a polymorphic attribute write
914 fun write_attribute(a: MAttribute, recv: RuntimeVariable, value: RuntimeVariable) is abstract
918 # Add a check and an abort for a null reciever if needed
919 fun check_recv_notnull(recv: RuntimeVariable)
921 if self.compiler.modelbuilder.toolcontext.opt_no_check_other.value then return
923 var maybenull = recv.mcasttype isa MNullableType or recv.mcasttype isa MNullType
925 self.add("if ({recv} == NULL) \{")
926 self.add_abort("Receiver is null")
933 private var names: HashSet[String] = new HashSet[String]
934 private var last: Int = 0
936 # Return a new name based on `s
` and unique in the visitor
937 fun get_name(s: String): String
939 if not self.names.has(s) then
943 var i = self.last + 1
946 if not self.names.has(s2) then
955 # Return an unique and stable identifier associated with an escapemark
956 fun escapemark_name(e: nullable EscapeMark): String
959 if escapemark_names.has_key(e) then return escapemark_names[e]
961 if name == null then name = "label"
962 name = get_name(name)
963 escapemark_names[e] = name
967 private var escapemark_names = new HashMap[EscapeMark, String]
969 # Return a "const char*" variable associated to the classname of the dynamic type of an object
970 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
971 fun class_name_string(value: RuntimeVariable): String is abstract
975 protected var variables: HashMap[Variable, RuntimeVariable] = new HashMap[Variable, RuntimeVariable]
977 # Return the local runtime_variable associated to a Nit local variable
978 fun variable(variable: Variable): RuntimeVariable
980 if self.variables.has_key(variable) then
981 return self.variables[variable]
983 var name = self.get_name("var_{variable.name}")
984 var mtype = variable.declared_type.as(not null)
985 mtype = self.anchor(mtype)
986 var res = new RuntimeVariable(name, mtype, mtype)
987 self.add_decl("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
988 self.variables[variable] = res
993 # Return a new uninitialized local runtime_variable
994 fun new_var(mtype: MType): RuntimeVariable
996 mtype = self.anchor(mtype)
997 var name = self.get_name("var")
998 var res = new RuntimeVariable(name, mtype, mtype)
999 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
1003 # Return a new uninitialized named runtime_variable
1004 fun new_named_var(mtype: MType, name: String): RuntimeVariable
1006 mtype = self.anchor(mtype)
1007 var res = new RuntimeVariable(name, mtype, mtype)
1008 self.add_decl("{mtype.ctype} {name} /* : {mtype} */;")
1012 # Correctly assign a left and a right value
1013 # Boxing and unboxing is performed if required
1014 fun assign(left, right: RuntimeVariable)
1016 right = self.autobox(right, left.mtype)
1017 self.add("{left} = {right};")
1020 # Generate instances
1022 # Generate a alloc-instance + init-attributes
1023 fun init_instance(mtype: MClassType): RuntimeVariable is abstract
1025 # Generate an integer value
1026 fun int_instance(value: Int): RuntimeVariable
1028 var res = self.new_var(self.get_class("Int").mclass_type)
1029 self.add("{res} = {value};")
1033 # Generate a string value
1034 fun string_instance(string: String): RuntimeVariable
1036 var mtype = self.get_class("String").mclass_type
1037 var name = self.get_name("varonce")
1038 self.add_decl("static {mtype.ctype} {name};")
1039 var res = self.new_var(mtype)
1040 self.add("if ({name}) \{")
1041 self.add("{res} = {name};")
1042 self.add("\} else \{")
1043 var native_mtype = self.get_class("NativeString").mclass_type
1044 var nat = self.new_var(native_mtype)
1045 self.add("{nat} = \"{string.escape_to_c}\";")
1046 var length = self.int_instance(string.length)
1047 self.add("{res} = {self.send(self.get_property("to_s_with_length", native_mtype), [nat, length]).as(not null)};")
1048 self.add("{name} = {res};")
1053 # Generate an array value
1054 fun array_instance(array: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1056 # Get an instance of a array for a vararg
1057 fun vararg_instance(mpropdef: MPropDef, recv: RuntimeVariable, varargs: Array[RuntimeVariable], elttype: MType): RuntimeVariable is abstract
1061 # Add a line in the main part of the generated C
1062 fun add(s: String) do self.writer.lines.add(s)
1065 # (used for local or global declaration)
1066 fun add_decl(s: String) do self.writer.decl_lines.add(s)
1068 # Request the presence of a global declaration
1069 fun require_declaration(key: String)
1071 var reqs = self.writer.file.required_declarations
1072 if reqs.has(key) then return
1074 var node = current_node
1075 if node != null then compiler.requirers_of_declarations[key] = node
1078 # Add a declaration in the local-header
1079 # The declaration is ensured to be present once
1080 fun declare_once(s: String)
1082 self.compiler.provide_declaration(s, s)
1083 self.require_declaration(s)
1086 # look for a needed .h and .c file for a given .nit source-file
1087 # FIXME: bad API, parameter should be a `MModule`, not its source-file
1088 fun add_extern(file: String)
1090 file = file.strip_extension(".nit")
1091 var tryfile = file + ".nit.h"
1092 if tryfile.file_exists then
1093 self.declare_once("#include \"{tryfile.basename("")}\"")
1094 self.compiler.files_to_copy.add(tryfile)
1096 tryfile = file + "_nit.h"
1097 if tryfile.file_exists then
1098 self.declare_once("#include \"{tryfile.basename("")}\"")
1099 self.compiler.files_to_copy.add(tryfile)
1102 if self.compiler.seen_extern.has(file) then return
1103 self.compiler.seen_extern.add(file)
1104 tryfile = file + ".nit.c"
1105 if not tryfile.file_exists then
1106 tryfile = file + "_nit.c"
1107 if not tryfile.file_exists then return
1109 var f = new ExternCFile(tryfile.basename(""), "")
1110 self.compiler.extern_bodies.add(f)
1111 self.compiler.files_to_copy.add(tryfile)
1114 # Return a new local runtime_variable initialized with the C expression `cexpr
`.
1115 fun new_expr(cexpr: String, mtype: MType): RuntimeVariable
1117 var res = new_var(mtype)
1118 self.add("{res} = {cexpr};")
1122 # Generate generic abort
1123 # used by aborts, asserts, casts, etc.
1124 fun add_abort(message: String)
1126 self.add("fprintf(stderr, \"Runtime error: %s\", \"{message.escape_to_c}\");")
1132 if self.current_node != null and self.current_node.location.file != null then
1133 self.add("fprintf(stderr, \" (%s:%d)\\n\", \"{self.current_node.location.file.filename.escape_to_c}\", {current_node.location.line_start});")
1135 self.add("fprintf(stderr, \"\\n\");")
1137 self.add("show_backtrace(1);")
1140 # Add a dynamic cast
1141 fun add_cast(value: RuntimeVariable, mtype: MType, tag: String)
1143 var res = self.type_test(value, mtype, tag)
1144 self.add("if (!{res}) \{")
1145 var cn = self.class_name_string(value)
1146 self.add("fprintf(stderr, \"Runtime error: Cast failed. Expected `%s
`, got `%s
`\", \"{mtype.to_s.escape_to_c}\", {cn});")
1151 # Generate a return with the value `s
`
1152 fun ret(s: RuntimeVariable)
1154 self.assign(self.frame.returnvar.as(not null), s)
1155 self.add("goto {self.frame.returnlabel.as(not null)};")
1158 # Compile a statement (if any)
1159 fun stmt(nexpr: nullable AExpr)
1161 if nexpr == null then return
1162 var old = self.current_node
1163 self.current_node = nexpr
1165 self.current_node = old
1168 # Compile an expression an return its result
1169 # `mtype
` is the expected return type, pass null if no specific type is expected.
1170 fun expr(nexpr: AExpr, mtype: nullable MType): RuntimeVariable
1172 var old = self.current_node
1173 self.current_node = nexpr
1174 var res = nexpr.expr(self).as(not null)
1175 if mtype != null then
1176 mtype = self.anchor(mtype)
1177 res = self.autobox(res, mtype)
1179 res = autoadapt(res, nexpr.mtype.as(not null))
1180 var implicit_cast_to = nexpr.implicit_cast_to
1181 if implicit_cast_to != null and not self.compiler.modelbuilder.toolcontext.opt_no_check_autocast.value then
1182 add_cast(res, implicit_cast_to, "auto")
1183 res = autoadapt(res, implicit_cast_to)
1185 self.current_node = old
1189 # Alias for `self.expr
(nexpr
, self.bool_type
)`
1190 fun expr_bool(nexpr: AExpr): RuntimeVariable do return expr(nexpr, bool_type)
1192 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1193 fun debug(message: String)
1195 var node = self.current_node
1196 if node == null then
1197 print "?: {message}"
1201 self.add("/* DEBUG: {message} */")
1205 # A C function associated to a Nit method
1206 # Because of customization, a given Nit method can be compiler more that once
1207 abstract class AbstractRuntimeFunction
1209 type COMPILER: AbstractCompiler
1210 type VISITOR: AbstractCompilerVisitor
1212 # The associated Nit method
1213 var mmethoddef: MMethodDef
1215 # The mangled c name of the runtime_function
1216 # Subclasses should redefine `build_c_name
` instead
1219 var res = self.c_name_cache
1220 if res != null then return res
1221 res = self.build_c_name
1222 self.c_name_cache = res
1226 # Non cached version of `c_name
`
1227 protected fun build_c_name: String is abstract
1229 protected var c_name_cache: nullable String writable = null
1231 # Implements a call of the runtime_function
1232 # May inline the body or generate a C function call
1233 fun call(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1235 # Generate the code for the `AbstractRuntimeFunction`
1236 # Warning: compile more than once compilation makes CC unhappy
1237 fun compile_to_c(compiler: COMPILER) is abstract
1240 # A runtime variable hold a runtime value in C.
1241 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1243 # 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.
1244 class RuntimeVariable
1245 # The name of the variable in the C code
1248 # The static type of the variable (as declard in C)
1251 # The current casted type of the variable (as known in Nit)
1252 var mcasttype: MType writable
1254 # If the variable exaclty a mcasttype?
1255 # false (usual value) means that the variable is a mcasttype or a subtype.
1256 var is_exact: Bool writable = false
1258 init(name: String, mtype: MType, mcasttype: MType)
1262 self.mcasttype = mcasttype
1263 assert not mtype.need_anchor
1264 assert not mcasttype.need_anchor
1267 redef fun to_s do return name
1272 if self.is_exact then
1273 exact_str = " exact"
1278 if self.mtype == self.mcasttype then
1279 type_str = "{mtype}{exact_str}"
1281 type_str = "{mtype}({mcasttype}{exact_str})"
1283 return "<{name}:{type_str}>"
1287 # A frame correspond to a visited property in a `GlobalCompilerVisitor`
1290 type VISITOR: AbstractCompilerVisitor
1292 # The associated visitor
1293 var visitor: VISITOR
1295 # The executed property.
1296 # A Method in case of a call, an attribute in case of a default initialization.
1297 var mpropdef: MPropDef
1299 # The static type of the receiver
1300 var receiver: MClassType
1302 # Arguments of the method (the first is the receiver)
1303 var arguments: Array[RuntimeVariable]
1305 # The runtime_variable associated to the return (in a function)
1306 var returnvar: nullable RuntimeVariable writable = null
1308 # The label at the end of the property
1309 var returnlabel: nullable String writable = null
1313 # Return the C type associated to a given Nit static type
1314 fun ctype: String do return "val*"
1316 fun ctypename: String do return "val"
1318 # Return the name of the C structure associated to a Nit live type
1319 fun c_name: String is abstract
1320 protected var c_name_cache: nullable String protected writable
1323 redef class MClassType
1326 var res = self.c_name_cache
1327 if res != null then return res
1328 res = "{mclass.intro_mmodule.name.to_cmangle}__{mclass.name.to_cmangle}"
1329 self.c_name_cache = res
1333 redef fun ctype: String
1335 if mclass.name == "Int" then
1337 else if mclass.name == "Bool" then
1339 else if mclass.name == "Char" then
1341 else if mclass.name == "Float" then
1343 else if mclass.name == "NativeString" then
1345 else if mclass.name == "NativeArray" then
1347 else if mclass.kind == extern_kind then
1354 redef fun ctypename: String
1356 if mclass.name == "Int" then
1358 else if mclass.name == "Bool" then
1360 else if mclass.name == "Char" then
1362 else if mclass.name == "Float" then
1364 else if mclass.name == "NativeString" then
1366 else if mclass.name == "NativeArray" then
1367 #return "{self.arguments.first.ctype}*"
1369 else if mclass.kind == extern_kind then
1377 redef class MGenericType
1380 var res = self.c_name_cache
1381 if res != null then return res
1383 for t in self.arguments do
1384 res = res + t.c_name
1386 self.c_name_cache = res
1391 redef class MParameterType
1394 var res = self.c_name_cache
1395 if res != null then return res
1396 res = "{self.mclass.c_name}_FT{self.rank}"
1397 self.c_name_cache = res
1402 redef class MVirtualType
1405 var res = self.c_name_cache
1406 if res != null then return res
1407 res = "{self.mproperty.intro.mclassdef.mclass.c_name}_VT{self.mproperty.name}"
1408 self.c_name_cache = res
1413 redef class MNullableType
1416 var res = self.c_name_cache
1417 if res != null then return res
1418 res = "nullable_{self.mtype.c_name}"
1419 self.c_name_cache = res
1425 # Return the name of the C structure associated to a Nit class
1426 fun c_name: String do
1427 var res = self.c_name_cache
1428 if res != null then return res
1429 res = "{intro_mmodule.name.to_cmangle}__{name.to_cmangle}"
1430 self.c_name_cache = res
1433 private var c_name_cache: nullable String
1436 redef class MProperty
1437 fun c_name: String do
1438 var res = self.c_name_cache
1439 if res != null then return res
1440 res = "{self.intro.c_name}"
1441 self.c_name_cache = res
1444 private var c_name_cache: nullable String
1447 redef class MPropDef
1448 type VISITOR: AbstractCompilerVisitor
1450 private var c_name_cache: nullable String
1452 # The mangled name associated to the property
1455 var res = self.c_name_cache
1456 if res != null then return res
1457 res = "{self.mclassdef.mmodule.name.to_cmangle}__{self.mclassdef.mclass.name.to_cmangle}__{self.mproperty.name.to_cmangle}"
1458 self.c_name_cache = res
1463 redef class MMethodDef
1464 # Can the body be inlined?
1465 fun can_inline(v: VISITOR): Bool
1467 var modelbuilder = v.compiler.modelbuilder
1468 if modelbuilder.mpropdef2npropdef.has_key(self) then
1469 var npropdef = modelbuilder.mpropdef2npropdef[self]
1470 return npropdef.can_inline
1471 else if self.mproperty.name == "init" then
1472 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
1479 # Inline the body in another visitor
1480 fun compile_inside_to_c(v: VISITOR, arguments: Array[RuntimeVariable]): nullable RuntimeVariable
1482 var modelbuilder = v.compiler.modelbuilder
1483 if modelbuilder.mpropdef2npropdef.has_key(self) then
1484 var npropdef = modelbuilder.mpropdef2npropdef[self]
1485 var oldnode = v.current_node
1486 v.current_node = npropdef
1487 self.compile_parameter_check(v, arguments)
1488 npropdef.compile_to_c(v, self, arguments)
1489 v.current_node = oldnode
1490 else if self.mproperty.name == "init" then
1491 var nclassdef = modelbuilder.mclassdef2nclassdef[self.mclassdef]
1492 var oldnode = v.current_node
1493 v.current_node = nclassdef
1494 self.compile_parameter_check(v, arguments)
1495 nclassdef.compile_to_c(v, self, arguments)
1496 v.current_node = oldnode
1503 # Generate type checks in the C code to check covariant parameters
1504 fun compile_parameter_check(v: VISITOR, arguments: Array[RuntimeVariable])
1506 if v.compiler.modelbuilder.toolcontext.opt_no_check_covariance.value then return
1508 for i in [0..msignature.arity[ do
1509 # skip test for vararg since the array is instantiated with the correct polymorphic type
1510 if msignature.vararg_rank == i then continue
1512 # skip if the cast is not required
1513 var origmtype = self.mproperty.intro.msignature.mparameters[i].mtype
1514 if not origmtype.need_anchor then continue
1516 # get the parameter type
1517 var mtype = self.msignature.mparameters[i].mtype
1520 # note that v decides if and how to implements the cast
1521 v.add("/* Covariant cast for argument {i} ({self.msignature.mparameters[i].name}) {arguments[i+1].inspect} isa {mtype} */")
1522 v.add_cast(arguments[i+1], mtype, "covariance")
1529 redef class APropdef
1530 fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1532 v.add("printf(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at {location.to_s}\\n\");")
1533 debug("Not yet implemented")
1536 fun can_inline: Bool do return true
1539 redef class AConcreteMethPropdef
1540 redef fun compile_to_c(v, mpropdef, arguments)
1542 for i in [0..mpropdef.msignature.arity[ do
1543 var variable = self.n_signature.n_params[i].variable.as(not null)
1544 v.assign(v.variable(variable), arguments[i+1])
1546 # Call the implicit super-init
1547 var auto_super_inits = self.auto_super_inits
1548 if auto_super_inits != null then
1549 var args = [arguments.first]
1550 for auto_super_init in auto_super_inits do
1552 for i in [0..auto_super_init.msignature.arity+1[ do
1553 args.add(arguments[i])
1555 v.compile_callsite(auto_super_init, args)
1558 v.stmt(self.n_block)
1561 redef fun can_inline
1563 if self.auto_super_inits != null then return false
1564 var nblock = self.n_block
1565 if nblock == null then return true
1566 if (mpropdef.mproperty.name == "==" or mpropdef.mproperty.name == "!=") and mpropdef.mclassdef.mclass.name == "Object" then return true
1567 if nblock isa ABlockExpr and nblock.n_expr.length == 0 then return true
1572 redef class AInternMethPropdef
1573 redef fun compile_to_c(v, mpropdef, arguments)
1575 var pname = mpropdef.mproperty.name
1576 var cname = mpropdef.mclassdef.mclass.name
1577 var ret = mpropdef.msignature.return_mtype
1579 ret = v.resolve_for(ret, arguments.first)
1581 if pname != "==" and pname != "!=" then
1582 v.adapt_signature(mpropdef, arguments)
1584 if cname == "Int" then
1585 if pname == "output" then
1586 v.add("printf(\"%ld\\n\", {arguments.first});")
1588 else if pname == "object_id" then
1589 v.ret(arguments.first)
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 == "unary -" then
1598 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1600 else if pname == "succ" then
1601 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1603 else if pname == "prec" then
1604 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1606 else if pname == "*" then
1607 v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
1609 else if pname == "/" then
1610 v.ret(v.new_expr("{arguments[0]} / {arguments[1]}", ret.as(not null)))
1612 else if pname == "%" then
1613 v.ret(v.new_expr("{arguments[0]} % {arguments[1]}", ret.as(not null)))
1615 else if pname == "lshift" then
1616 v.ret(v.new_expr("{arguments[0]} << {arguments[1]}", ret.as(not null)))
1618 else if pname == "rshift" then
1619 v.ret(v.new_expr("{arguments[0]} >> {arguments[1]}", ret.as(not null)))
1621 else if pname == "==" then
1622 v.ret(v.equal_test(arguments[0], arguments[1]))
1624 else if pname == "!=" then
1625 var res = v.equal_test(arguments[0], arguments[1])
1626 v.ret(v.new_expr("!{res}", ret.as(not null)))
1628 else if pname == "<" then
1629 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1631 else if pname == ">" then
1632 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1634 else if pname == "<=" then
1635 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1637 else if pname == ">=" then
1638 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1640 else if pname == "to_f" then
1641 v.ret(v.new_expr("(double){arguments[0]}", ret.as(not null)))
1643 else if pname == "ascii" then
1644 v.ret(v.new_expr("{arguments[0]}", ret.as(not null)))
1647 else if cname == "Char" then
1648 if pname == "output" then
1649 v.add("printf(\"%c\", {arguments.first});")
1651 else if pname == "object_id" then
1652 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1654 else if pname == "+" then
1655 v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
1657 else if pname == "-" then
1658 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1660 else if pname == "==" then
1661 v.ret(v.equal_test(arguments[0], arguments[1]))
1663 else if pname == "!=" then
1664 var res = v.equal_test(arguments[0], arguments[1])
1665 v.ret(v.new_expr("!{res}", ret.as(not null)))
1667 else if pname == "succ" then
1668 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1670 else if pname == "prec" then
1671 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1673 else if pname == "<" then
1674 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1676 else if pname == ">" then
1677 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1679 else if pname == "<=" then
1680 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1682 else if pname == ">=" then
1683 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1685 else if pname == "to_i" then
1686 v.ret(v.new_expr("{arguments[0]}-'0'", ret.as(not null)))
1688 else if pname == "ascii" then
1689 v.ret(v.new_expr("(unsigned char){arguments[0]}", ret.as(not null)))
1692 else if cname == "Bool" then
1693 if pname == "output" then
1694 v.add("printf({arguments.first}?\"true\\n\":\"false\\n\");")
1696 else if pname == "object_id" then
1697 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1699 else if pname == "==" then
1700 v.ret(v.equal_test(arguments[0], arguments[1]))
1702 else if pname == "!=" then
1703 var res = v.equal_test(arguments[0], arguments[1])
1704 v.ret(v.new_expr("!{res}", ret.as(not null)))
1707 else if cname == "Float" then
1708 if pname == "output" then
1709 v.add("printf(\"%f\\n\", {arguments.first});")
1711 else if pname == "object_id" then
1712 v.ret(v.new_expr("(double){arguments.first}", 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 == "-" then
1718 v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
1720 else if pname == "unary -" then
1721 v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
1723 else if pname == "succ" then
1724 v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
1726 else if pname == "prec" then
1727 v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
1729 else if pname == "*" then
1730 v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
1732 else if pname == "/" then
1733 v.ret(v.new_expr("{arguments[0]} / {arguments[1]}", ret.as(not null)))
1735 else if pname == "==" then
1736 v.ret(v.equal_test(arguments[0], arguments[1]))
1738 else if pname == "!=" then
1739 var res = v.equal_test(arguments[0], arguments[1])
1740 v.ret(v.new_expr("!{res}", ret.as(not null)))
1742 else if pname == "<" then
1743 v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
1745 else if pname == ">" then
1746 v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
1748 else if pname == "<=" then
1749 v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
1751 else if pname == ">=" then
1752 v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
1754 else if pname == "to_i" then
1755 v.ret(v.new_expr("(long){arguments[0]}", ret.as(not null)))
1758 else if cname == "NativeString" then
1759 if pname == "[]" then
1760 v.ret(v.new_expr("{arguments[0]}[{arguments[1]}]", ret.as(not null)))
1762 else if pname == "[]=" then
1763 v.add("{arguments[0]}[{arguments[1]}]={arguments[2]};")
1765 else if pname == "copy_to" then
1766 v.add("memcpy({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
1768 else if pname == "atoi" then
1769 v.ret(v.new_expr("atoi({arguments[0]});", ret.as(not null)))
1772 else if cname == "NativeArray" then
1773 v.native_array_def(pname, ret, arguments)
1776 if pname == "exit" then
1777 v.add("exit({arguments[1]});")
1779 else if pname == "sys" then
1780 v.ret(v.new_expr("glob_sys", ret.as(not null)))
1782 else if pname == "calloc_string" then
1783 v.ret(v.new_expr("(char*)nit_alloc({arguments[1]})", ret.as(not null)))
1785 else if pname == "calloc_array" then
1786 v.calloc_array(ret.as(not null), arguments)
1788 else if pname == "object_id" then
1789 v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
1791 else if pname == "is_same_type" then
1792 v.ret(v.is_same_type_test(arguments[0], arguments[1]))
1794 else if pname == "is_same_instance" then
1795 v.ret(v.equal_test(arguments[0], arguments[1]))
1797 else if pname == "output_class_name" then
1798 var nat = v.class_name_string(arguments.first)
1799 v.add("printf(\"%s\\n\", {nat});")
1801 else if pname == "native_class_name" then
1802 var nat = v.class_name_string(arguments.first)
1803 v.ret(v.new_expr("(char*){nat}", ret.as(not null)))
1805 else if pname == "force_garbage_collection" then
1806 v.add("nit_gcollect();")
1808 else if pname == "native_argc" then
1809 v.ret(v.new_expr("glob_argc", ret.as(not null)))
1811 else if pname == "native_argv" then
1812 v.ret(v.new_expr("glob_argv[{arguments[1]}]", ret.as(not null)))
1815 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{mpropdef} at {location.to_s}\\n\");")
1816 debug("Not implemented {mpropdef}")
1820 redef class AExternMethPropdef
1821 redef fun compile_to_c(v, mpropdef, arguments)
1824 var nextern = self.n_extern
1825 if nextern == null then
1826 v.add("fprintf(stderr, \"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1827 v.add("show_backtrace(1);")
1830 externname = nextern.text.substring(1, nextern.text.length-2)
1831 if location.file != null then
1832 var file = location.file.filename
1835 var res: nullable RuntimeVariable = null
1836 var ret = mpropdef.msignature.return_mtype
1838 ret = v.resolve_for(ret, arguments.first)
1839 res = v.new_var(ret)
1841 v.adapt_signature(mpropdef, arguments)
1844 v.add("{externname}({arguments.join(", ")});")
1846 v.add("{res} = {externname}({arguments.join(", ")});")
1852 redef class AExternInitPropdef
1853 redef fun compile_to_c(v, mpropdef, arguments)
1856 var nextern = self.n_extern
1857 if nextern == null then
1858 v.add("printf(\"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
1859 v.add("show_backtrace(1);")
1862 externname = nextern.text.substring(1, nextern.text.length-2)
1863 if location.file != null then
1864 var file = location.file.filename
1867 v.adapt_signature(mpropdef, arguments)
1868 var ret = arguments.first.mtype
1869 var res = v.new_var(ret)
1873 v.add("{res} = {externname}({arguments.join(", ")});")
1878 redef class AAttrPropdef
1879 redef fun compile_to_c(v, mpropdef, arguments)
1881 if arguments.length == 1 then
1882 var res = v.read_attribute(self.mpropdef.mproperty, arguments.first)
1883 v.assign(v.frame.returnvar.as(not null), res)
1885 v.write_attribute(self.mpropdef.mproperty, arguments.first, arguments[1])
1889 fun init_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1891 var nexpr = self.n_expr
1892 if nexpr != null then
1893 var oldnode = v.current_node
1894 v.current_node = self
1895 var old_frame = v.frame
1896 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1898 var value = v.expr(nexpr, self.mpropdef.static_mtype)
1899 v.write_attribute(self.mpropdef.mproperty, recv, value)
1901 v.current_node = oldnode
1905 fun check_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
1907 var nexpr = self.n_expr
1908 if nexpr != null then return
1910 var oldnode = v.current_node
1911 v.current_node = self
1912 var old_frame = v.frame
1913 var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
1915 # Force read to check the initialization
1916 v.read_attribute(self.mpropdef.mproperty, recv)
1918 v.current_node = oldnode
1922 redef class AClassdef
1923 private fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
1925 if mpropdef == self.mfree_init then
1926 var super_inits = self.super_inits
1927 if super_inits != null then
1928 assert arguments.length == 1
1929 for su in super_inits do
1930 v.send(su, arguments)
1934 var recv = arguments.first
1936 # Collect undefined attributes
1937 for npropdef in self.n_propdefs do
1938 if npropdef isa AAttrPropdef and npropdef.n_expr == null then
1939 v.write_attribute(npropdef.mpropdef.mproperty, recv, arguments[i])
1949 redef class ADeferredMethPropdef
1950 redef fun compile_to_c(v, mpropdef, arguments) do
1951 var cn = v.class_name_string(arguments.first)
1952 v.add("fprintf(stderr, \"Runtime error: Abstract method `%s
` called on `%s
`\", \"{mpropdef.mproperty.name.escape_to_c}\", {cn});")
1955 redef fun can_inline do return true
1959 # Try to compile self as an expression
1960 # Do not call this method directly, use `v
.expr
` instead
1961 private fun expr(v: AbstractCompilerVisitor): nullable RuntimeVariable
1963 v.add("printf(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\");")
1964 var mtype = self.mtype
1965 if mtype == null then
1968 var res = v.new_var(mtype)
1969 v.add("/* {res} = NOT YET {class_name} */")
1974 # Try to compile self as a statement
1975 # Do not call this method directly, use `v
.stmt
` instead
1976 private fun stmt(v: AbstractCompilerVisitor)
1979 if res != null then v.add("{res};")
1983 redef class ABlockExpr
1986 for e in self.n_expr do v.stmt(e)
1990 var last = self.n_expr.last
1991 for e in self.n_expr do
1992 if e == last then break
1995 return v.expr(last, null)
1999 redef class AVardeclExpr
2002 var variable = self.variable.as(not null)
2003 var ne = self.n_expr
2005 var i = v.expr(ne, variable.declared_type)
2006 v.assign(v.variable(variable), i)
2011 redef class AVarExpr
2014 var res = v.variable(self.variable.as(not null))
2015 var mtype = self.mtype.as(not null)
2016 return v.autoadapt(res, mtype)
2020 redef class AVarAssignExpr
2023 var variable = self.variable.as(not null)
2024 var i = v.expr(self.n_value, variable.declared_type)
2025 v.assign(v.variable(variable), i)
2029 var variable = self.variable.as(not null)
2030 var i = v.expr(self.n_value, variable.declared_type)
2031 v.assign(v.variable(variable), i)
2036 redef class AVarReassignExpr
2039 var variable = self.variable.as(not null)
2040 var vari = v.variable(variable)
2041 var value = v.expr(self.n_value, variable.declared_type)
2042 var res = v.compile_callsite(self.reassign_callsite.as(not null), [vari, value])
2044 v.assign(v.variable(variable), res)
2048 redef class ASelfExpr
2049 redef fun expr(v) do return v.frame.arguments.first
2052 redef class AContinueExpr
2053 redef fun stmt(v) do v.add("goto CONTINUE_{v.escapemark_name(self.escapemark)};")
2056 redef class ABreakExpr
2057 redef fun stmt(v) do v.add("goto BREAK_{v.escapemark_name(self.escapemark)};")
2060 redef class AReturnExpr
2063 var nexpr = self.n_expr
2064 if nexpr != null then
2065 var returnvar = v.frame.returnvar.as(not null)
2066 var i = v.expr(nexpr, returnvar.mtype)
2067 v.assign(returnvar, i)
2069 v.add("goto {v.frame.returnlabel.as(not null)};")
2073 redef class AAbortExpr
2074 redef fun stmt(v) do v.add_abort("Aborted")
2080 var cond = v.expr_bool(self.n_expr)
2081 v.add("if ({cond})\{")
2090 var res = v.new_var(self.mtype.as(not null))
2091 var cond = v.expr_bool(self.n_expr)
2092 v.add("if ({cond})\{")
2093 v.assign(res, v.expr(self.n_then.as(not null), null))
2095 v.assign(res, v.expr(self.n_else.as(not null), null))
2101 redef class AIfexprExpr
2104 var res = v.new_var(self.mtype.as(not null))
2105 var cond = v.expr_bool(self.n_expr)
2106 v.add("if ({cond})\{")
2107 v.assign(res, v.expr(self.n_then, null))
2109 v.assign(res, v.expr(self.n_else, null))
2118 v.stmt(self.n_block)
2119 var escapemark = self.escapemark
2120 if escapemark != null then
2121 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2126 redef class AWhileExpr
2130 var cond = v.expr_bool(self.n_expr)
2131 v.add("if (!{cond}) break;")
2132 v.stmt(self.n_block)
2133 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2135 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2139 redef class ALoopExpr
2143 v.stmt(self.n_block)
2144 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2146 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2150 redef class AForExpr
2153 # Shortcut on explicit range
2154 # Avoid the instantiation of the range and the iterator
2155 var nexpr = self.n_expr
2156 if self.variables.length == 1 and nexpr isa AOrangeExpr and not v.compiler.modelbuilder.toolcontext.opt_no_shortcut_range.value then
2157 var from = v.expr(nexpr.n_expr, null)
2158 var to = v.expr(nexpr.n_expr2, null)
2159 var variable = v.variable(variables.first)
2161 v.assign(variable, from)
2162 v.add("for(;;) \{ /* shortcut range */")
2164 var ok = v.send(v.get_property("<", variable.mtype), [variable, to])
2166 v.add("if(!{ok}) break;")
2168 v.stmt(self.n_block)
2170 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2171 var succ = v.send(v.get_property("succ", variable.mtype), [variable])
2173 v.assign(variable, succ)
2175 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2179 var cl = v.expr(self.n_expr, null)
2180 var it_meth = self.method_iterator
2181 assert it_meth != null
2182 var it = v.compile_callsite(it_meth, [cl])
2185 var isok_meth = self.method_is_ok
2186 assert isok_meth != null
2187 var ok = v.compile_callsite(isok_meth, [it])
2189 v.add("if(!{ok}) break;")
2190 if self.variables.length == 1 then
2191 var item_meth = self.method_item
2192 assert item_meth != null
2193 var i = v.compile_callsite(item_meth, [it])
2195 v.assign(v.variable(variables.first), i)
2196 else if self.variables.length == 2 then
2197 var key_meth = self.method_key
2198 assert key_meth != null
2199 var i = v.compile_callsite(key_meth, [it])
2201 v.assign(v.variable(variables[0]), i)
2202 var item_meth = self.method_item
2203 assert item_meth != null
2204 i = v.compile_callsite(item_meth, [it])
2206 v.assign(v.variable(variables[1]), i)
2210 v.stmt(self.n_block)
2211 v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
2212 var next_meth = self.method_next
2213 assert next_meth != null
2214 v.compile_callsite(next_meth, [it])
2216 v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
2220 redef class AAssertExpr
2223 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return
2225 var cond = v.expr_bool(self.n_expr)
2226 v.add("if (!{cond}) \{")
2230 v.add_abort("Assert '{nid.text}' failed")
2232 v.add_abort("Assert failed")
2241 var res = v.new_var(self.mtype.as(not null))
2242 var i1 = v.expr_bool(self.n_expr)
2243 v.add("if ({i1}) \{")
2246 var i2 = v.expr_bool(self.n_expr2)
2247 v.add("{res} = {i2};")
2253 redef class AImpliesExpr
2256 var res = v.new_var(self.mtype.as(not null))
2257 var i1 = v.expr_bool(self.n_expr)
2258 v.add("if (!{i1}) \{")
2261 var i2 = v.expr_bool(self.n_expr2)
2262 v.add("{res} = {i2};")
2268 redef class AAndExpr
2271 var res = v.new_var(self.mtype.as(not null))
2272 var i1 = v.expr_bool(self.n_expr)
2273 v.add("if (!{i1}) \{")
2276 var i2 = v.expr_bool(self.n_expr2)
2277 v.add("{res} = {i2};")
2283 redef class ANotExpr
2286 var cond = v.expr_bool(self.n_expr)
2287 return v.new_expr("!{cond}", self.mtype.as(not null))
2291 redef class AOrElseExpr
2294 var res = v.new_var(self.mtype.as(not null))
2295 var i1 = v.expr(self.n_expr, null)
2296 v.add("if ({i1}!=NULL) \{")
2299 var i2 = v.expr(self.n_expr2, null)
2306 redef class AIntExpr
2307 redef fun expr(v) do return v.new_expr("{self.value.to_s}", self.mtype.as(not null))
2310 redef class AFloatExpr
2311 redef fun expr(v) do return v.new_expr("{self.n_float.text}", self.mtype.as(not null)) # FIXME use value, not n_float
2314 redef class ACharExpr
2315 redef fun expr(v) do return v.new_expr("'{self.value.to_s.escape_to_c}'", self.mtype.as(not null))
2318 redef class AArrayExpr
2321 var mtype = self.mtype.as(MClassType).arguments.first
2322 var array = new Array[RuntimeVariable]
2323 for nexpr in self.n_exprs.n_exprs do
2324 var i = v.expr(nexpr, mtype)
2327 return v.array_instance(array, mtype)
2331 redef class AStringFormExpr
2332 redef fun expr(v) do return v.string_instance(self.value.as(not null))
2335 redef class ASuperstringExpr
2338 var array = new Array[RuntimeVariable]
2339 for ne in self.n_exprs do
2340 if ne isa AStringFormExpr and ne.value == "" then continue # skip empty sub-strings
2341 var i = v.expr(ne, null)
2344 var a = v.array_instance(array, v.object_type)
2345 var res = v.send(v.get_property("to_s", a.mtype), [a])
2350 redef class ACrangeExpr
2353 var i1 = v.expr(self.n_expr, null)
2354 var i2 = v.expr(self.n_expr2, null)
2355 var mtype = self.mtype.as(MClassType)
2356 var res = v.init_instance(mtype)
2357 var it = v.compile_callsite(init_callsite.as(not null), [res, i1, i2])
2362 redef class AOrangeExpr
2365 var i1 = v.expr(self.n_expr, null)
2366 var i2 = v.expr(self.n_expr2, null)
2367 var mtype = self.mtype.as(MClassType)
2368 var res = v.init_instance(mtype)
2369 var it = v.compile_callsite(init_callsite.as(not null), [res, i1, i2])
2374 redef class ATrueExpr
2375 redef fun expr(v) do return v.new_expr("1", self.mtype.as(not null))
2378 redef class AFalseExpr
2379 redef fun expr(v) do return v.new_expr("0", self.mtype.as(not null))
2382 redef class ANullExpr
2383 redef fun expr(v) do return v.new_expr("NULL", self.mtype.as(not null))
2386 redef class AIsaExpr
2389 var i = v.expr(self.n_expr, null)
2390 return v.type_test(i, self.cast_type.as(not null), "isa")
2394 redef class AAsCastExpr
2397 var i = v.expr(self.n_expr, null)
2398 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2400 v.add_cast(i, self.mtype.as(not null), "as")
2405 redef class AAsNotnullExpr
2408 var i = v.expr(self.n_expr, null)
2409 if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
2411 v.add("if ({i} == NULL) \{")
2412 v.add_abort("Cast failed")
2418 redef class AParExpr
2419 redef fun expr(v) do return v.expr(self.n_expr, null)
2422 redef class AOnceExpr
2425 var mtype = self.mtype.as(not null)
2426 var name = v.get_name("varonce")
2427 var guard = v.get_name(name + "_guard")
2428 v.add_decl("static {mtype.ctype} {name};")
2429 v.add_decl("static int {guard};")
2430 var res = v.new_var(mtype)
2431 v.add("if ({guard}) \{")
2432 v.add("{res} = {name};")
2434 var i = v.expr(self.n_expr, mtype)
2435 v.add("{res} = {i};")
2436 v.add("{name} = {res};")
2437 v.add("{guard} = 1;")
2443 redef class ASendExpr
2446 var recv = v.expr(self.n_expr, null)
2448 for a in self.raw_arguments.as(not null) do
2449 args.add(v.expr(a, null))
2451 return v.compile_callsite(self.callsite.as(not null), args)
2455 redef class ASendReassignFormExpr
2458 var recv = v.expr(self.n_expr, null)
2460 for a in self.raw_arguments.as(not null) do
2461 args.add(v.expr(a, null))
2463 var value = v.expr(self.n_value, null)
2465 var left = v.compile_callsite(self.callsite.as(not null), args)
2468 var res = v.compile_callsite(self.reassign_callsite.as(not null), [left, value])
2472 v.compile_callsite(self.write_callsite.as(not null), args)
2476 redef class ASuperExpr
2479 var recv = v.frame.arguments.first
2481 for a in self.n_args.n_exprs do
2482 args.add(v.expr(a, null))
2485 var callsite = self.callsite
2486 if callsite != null then
2487 # Add additionnals arguments for the super init call
2488 if args.length == 1 then
2489 for i in [0..callsite.mproperty.intro.msignature.arity[ do
2490 args.add(v.frame.arguments[i+1])
2494 var res = v.compile_callsite(callsite, args)
2498 if args.length == 1 then
2499 args = v.frame.arguments
2502 # stantard call-next-method
2503 return v.supercall(mpropdef.as(not null), recv.mtype.as(MClassType), args)
2507 redef class ANewExpr
2510 var mtype = self.mtype.as(MClassType)
2512 var ctype = mtype.ctype
2513 if ctype == "val*" then
2514 recv = v.init_instance(mtype)
2515 else if ctype == "void*" then
2516 recv = v.new_expr("NULL/*special!*/", mtype)
2518 debug("cannot new {mtype}")
2522 for a in self.n_args.n_exprs do
2523 args.add(v.expr(a, null))
2525 var res2 = v.compile_callsite(self.callsite.as(not null), args)
2526 if res2 != null then
2527 #self.debug("got {res2} from {mproperty}. drop {recv}")
2534 redef class AAttrExpr
2537 var recv = v.expr(self.n_expr, null)
2538 var mproperty = self.mproperty.as(not null)
2539 return v.read_attribute(mproperty, recv)
2543 redef class AAttrAssignExpr
2546 var recv = v.expr(self.n_expr, null)
2547 var i = v.expr(self.n_value, null)
2548 var mproperty = self.mproperty.as(not null)
2549 v.write_attribute(mproperty, recv, i)
2553 redef class AAttrReassignExpr
2556 var recv = v.expr(self.n_expr, null)
2557 var value = v.expr(self.n_value, null)
2558 var mproperty = self.mproperty.as(not null)
2559 var attr = v.read_attribute(mproperty, recv)
2560 var res = v.compile_callsite(self.reassign_callsite.as(not null), [attr, value])
2562 v.write_attribute(mproperty, recv, res)
2566 redef class AIssetAttrExpr
2569 var recv = v.expr(self.n_expr, null)
2570 var mproperty = self.mproperty.as(not null)
2571 return v.isset_attribute(mproperty, recv)
2575 redef class ADebugTypeExpr
2584 redef class Array[E]
2585 # Return a new `Array` with the elements only contened in self and not in `o
`
2586 fun -(o: Array[E]): Array[E] do
2587 var res = new Array[E]
2588 for e in self do if not o.has(e) then res.add(e)
2594 # All `MProperty` associated to all `MClassDef` of `mclass
`
2595 fun properties(mclass: MClass): Set[MProperty] do
2596 if not self.properties_cache.has_key(mclass) then
2597 var properties = new HashSet[MProperty]
2598 var parents = new Array[MClass]
2599 if self.flatten_mclass_hierarchy.has(mclass) then
2600 parents.add_all(mclass.in_hierarchy(self).direct_greaters)
2602 for parent in parents do
2603 properties.add_all(self.properties(parent))
2605 for mclassdef in mclass.mclassdefs do
2606 for mprop in mclassdef.intro_mproperties do
2607 properties.add(mprop)
2610 self.properties_cache[mclass] = properties
2612 return properties_cache[mclass]
2614 private var properties_cache: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
2618 # Does this module use the legacy native interface?
2619 fun uses_legacy_ni: Bool is abstract
2621 # Write FFI results to file
2622 fun finalize_ffi(v: AbstractCompilerVisitor, modelbuilder: ModelBuilder) do end
2624 # Write nitni results to file
2625 fun finalize_nitni(v: AbstractCompilerVisitor) do end
2627 # Give requided addinional system libraries (as given to LD_LIBS)
2628 # Note: can return null instead of an empty set
2629 fun collect_linker_libs: nullable Set[String] do return null