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
24 private import annotation
28 # Add compiling options
29 redef class ToolContext
31 var opt_output
= new OptionString("Filename of the generated executable", "-o", "--output")
33 var opt_dir
= new OptionString("Output directory", "--dir")
35 var opt_no_cc
= new OptionBool("Do not invoke the C compiler", "--no-cc")
37 var opt_no_main
= new OptionBool("Do not generate main entry point", "--no-main")
39 var opt_make_flags
= new OptionString("Additional options to the `make` command", "--make-flags")
41 var opt_max_c_lines
= new OptionInt("Maximum number of lines in generated C files. Use 0 for unlimited", 10000, "--max-c-lines")
43 var opt_group_c_files
= new OptionBool("Group all generated code in the same series of files", "--group-c-files")
45 var opt_compile_dir
= new OptionString("Directory used to generate temporary files", "--compile-dir")
47 var opt_hardening
= new OptionBool("Generate contracts in the C code against bugs in the compiler", "--hardening")
48 # --no-check-covariance
49 var opt_no_check_covariance
= new OptionBool("Disable type tests of covariant parameters (dangerous)", "--no-check-covariance")
50 # --no-check-attr-isset
51 var opt_no_check_attr_isset
= new OptionBool("Disable isset tests before each attribute access (dangerous)", "--no-check-attr-isset")
53 var opt_no_check_assert
= new OptionBool("Disable the evaluation of explicit `assert` and `as` (dangerous)", "--no-check-assert")
55 var opt_no_check_autocast
= new OptionBool("Disable implicit casts on unsafe expression usage (dangerous)", "--no-check-autocast")
57 var opt_no_check_null
= new OptionBool("Disable tests of null receiver (dangerous)", "--no-check-null")
59 var opt_no_check_all
= new OptionBool("Disable all tests (dangerous)", "--no-check-all")
60 # --typing-test-metrics
61 var opt_typing_test_metrics
= new OptionBool("Enable static and dynamic count of all type tests", "--typing-test-metrics")
62 # --invocation-metrics
63 var opt_invocation_metrics
= new OptionBool("Enable static and dynamic count of all method invocations", "--invocation-metrics")
64 # --isset-checks-metrics
65 var opt_isset_checks_metrics
= new OptionBool("Enable static and dynamic count of isset checks before attributes access", "--isset-checks-metrics")
67 var opt_no_stacktrace
= new OptionBool("Disable the generation of stack traces", "--no-stacktrace")
69 var opt_no_gcc_directive
= new OptionArray("Disable advanced gcc directives for optimization", "--no-gcc-directive")
71 var opt_release
= new OptionBool("Compile in release mode and finalize application", "--release")
73 var opt_debug
= new OptionBool("Compile in debug mode (no C-side optimization)", "-g", "--debug")
78 self.option_context
.add_option
(self.opt_output
, self.opt_dir
, self.opt_no_cc
, self.opt_no_main
, self.opt_make_flags
, self.opt_compile_dir
, self.opt_hardening
)
79 self.option_context
.add_option
(self.opt_no_check_covariance
, self.opt_no_check_attr_isset
, self.opt_no_check_assert
, self.opt_no_check_autocast
, self.opt_no_check_null
, self.opt_no_check_all
)
80 self.option_context
.add_option
(self.opt_typing_test_metrics
, self.opt_invocation_metrics
, self.opt_isset_checks_metrics
)
81 self.option_context
.add_option
(self.opt_no_stacktrace
)
82 self.option_context
.add_option
(self.opt_no_gcc_directive
)
83 self.option_context
.add_option
(self.opt_release
)
84 self.option_context
.add_option
(self.opt_max_c_lines
, self.opt_group_c_files
)
85 self.option_context
.add_option
(self.opt_debug
)
87 opt_no_main
.hidden
= true
90 redef fun process_options
(args
)
94 if opt_output
.value
!= null and opt_dir
.value
!= null then
95 print
"Option Error: cannot use both --dir and --output"
99 if opt_no_check_all
.value
then
100 opt_no_check_covariance
.value
= true
101 opt_no_check_attr_isset
.value
= true
102 opt_no_check_assert
.value
= true
103 opt_no_check_autocast
.value
= true
104 opt_no_check_null
.value
= true
109 redef class ModelBuilder
110 # Simple indirection to `Toolchain::write_and_make`
111 protected fun write_and_make
(compiler
: AbstractCompiler)
113 var platform
= compiler
.target_platform
114 var toolchain
= platform
.toolchain
(toolcontext
, compiler
)
115 compiler
.toolchain
= toolchain
116 toolchain
.write_and_make
121 # The specific tool-chain associated to the platform
122 fun toolchain
(toolcontext
: ToolContext, compiler
: AbstractCompiler): Toolchain
124 return new MakefileToolchain(toolcontext
, compiler
)
128 # Build toolchain for a specific target program, varies per `Platform`
132 var toolcontext
: ToolContext
134 # Compiler of the target program
135 var compiler
: AbstractCompiler
137 # Directory where to generate all files
139 # The option `--compile_dir` change this directory.
140 fun root_compile_dir
: String
142 var compile_dir
= toolcontext
.opt_compile_dir
.value
143 if compile_dir
== null then compile_dir
= "nit_compile"
147 # Directory where to generate all C files
149 # By default it is `root_compile_dir` but some platform may require that it is a subdirectory.
150 fun compile_dir
: String do return root_compile_dir
152 # Write all C files and compile them
153 fun write_and_make
is abstract
156 # Default toolchain using a Makefile
157 class MakefileToolchain
160 redef fun write_and_make
162 var debug
= toolcontext
.opt_debug
.value
163 var compile_dir
= compile_dir
165 # Remove the compilation directory unless explicitly set
166 var auto_remove
= toolcontext
.opt_compile_dir
.value
== null
167 # If debug flag is set, do not remove sources
168 if debug
then auto_remove
= false
170 # Generate the .h and .c files
171 # A single C file regroups many compiled rumtime functions
172 # 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
174 self.toolcontext
.info
("*** WRITING C ***", 1)
176 root_compile_dir
.mkdir
179 var cfiles
= new Array[String]
180 write_files
(compile_dir
, cfiles
)
182 # Generate the Makefile
184 write_makefile
(compile_dir
, cfiles
)
187 self.toolcontext
.info
("*** END WRITING C: {time1-time0} ***", 2)
189 # Execute the Makefile
191 if self.toolcontext
.opt_no_cc
.value
then return
194 self.toolcontext
.info
("*** COMPILING C ***", 1)
196 compile_c_code
(compile_dir
)
199 sys
.system
("rm -r -- '{root_compile_dir.escape_to_sh}/'")
203 self.toolcontext
.info
("*** END COMPILING C: {time1-time0} ***", 2)
206 # Write all source files to the `compile_dir`
207 fun write_files
(compile_dir
: String, cfiles
: Array[String])
209 var platform
= compiler
.target_platform
210 if platform
.supports_libunwind
then compiler
.build_c_to_nit_bindings
211 var cc_opt_with_libgc
= "-DWITH_LIBGC"
212 if not platform
.supports_libgc
then cc_opt_with_libgc
= ""
214 # Add gc_choser.h to aditionnal bodies
215 var gc_chooser
= new ExternCFile("gc_chooser.c", cc_opt_with_libgc
)
216 if cc_opt_with_libgc
!= "" then gc_chooser
.pkgconfigs
.add
"bdw-gc"
217 compiler
.extern_bodies
.add
(gc_chooser
)
218 var clib
= toolcontext
.nit_dir
/ "clib"
219 compiler
.files_to_copy
.add
"{clib}/gc_chooser.c"
220 compiler
.files_to_copy
.add
"{clib}/gc_chooser.h"
223 for m
in compiler
.mainmodule
.in_importation
.greaters
do
224 compiler
.finalize_ffi_for_module
(m
)
227 # Copy original .[ch] files to compile_dir
228 for src
in compiler
.files_to_copy
do
229 var basename
= src
.basename
230 var dst
= "{compile_dir}/{basename}"
234 var hfilename
= compiler
.header
.file
.name
+ ".h"
235 var hfilepath
= "{compile_dir}/{hfilename}"
236 var h
= new FileWriter.open
(hfilepath
)
237 for l
in compiler
.header
.decl_lines
do
241 for l
in compiler
.header
.lines
do
247 var max_c_lines
= toolcontext
.opt_max_c_lines
.value
248 for f
in compiler
.files
do
251 var file
: nullable FileWriter = null
252 for vis
in f
.writers
do
253 if vis
== compiler
.header
then continue
254 var total_lines
= vis
.lines
.length
+ vis
.decl_lines
.length
255 if total_lines
== 0 then continue
257 if file
== null or (count
> max_c_lines
and max_c_lines
> 0) then
259 if file
!= null then file
.close
260 var cfilename
= "{f.name}.{i}.c"
261 var cfilepath
= "{compile_dir}/{cfilename}"
262 self.toolcontext
.info
("new C source files to compile: {cfilepath}", 3)
263 cfiles
.add
(cfilename
)
264 file
= new FileWriter.open
(cfilepath
)
265 file
.write
"#include \"{f.name}.0.h\
"\n"
268 for l
in vis
.decl_lines
do
272 for l
in vis
.lines
do
277 if file
== null then continue
280 var cfilename
= "{f.name}.0.h"
281 var cfilepath
= "{compile_dir}/{cfilename}"
282 var hfile
: nullable FileWriter = null
283 hfile
= new FileWriter.open
(cfilepath
)
284 hfile
.write
"#include \"{hfilename}\
"\n"
285 for key
in f
.required_declarations
do
286 if not compiler
.provided_declarations
.has_key
(key
) then
287 var node
= compiler
.requirers_of_declarations
.get_or_null
(key
)
289 node
.debug
"No provided declaration for {key}"
291 print
"No provided declaration for {key}"
295 hfile
.write compiler
.provided_declarations
[key
]
301 self.toolcontext
.info
("Total C source files to compile: {cfiles.length}", 2)
304 # Get the name of the Makefile to use
305 fun makefile_name
: String do return "{compiler.mainmodule.c_name}.mk"
307 # Get the default name of the executable to produce
308 fun default_outname
: String
310 var mainmodule
= compiler
.mainmodule
.first_real_mmodule
311 return mainmodule
.name
314 # Combine options and platform informations to get the final path of the outfile
315 fun outfile
(mainmodule
: MModule): String
317 var res
= self.toolcontext
.opt_output
.value
318 if res
!= null then return res
319 res
= default_outname
320 var dir
= self.toolcontext
.opt_dir
.value
321 if dir
!= null then return dir
.join_path
(res
)
326 fun write_makefile
(compile_dir
: String, cfiles
: Array[String])
328 var mainmodule
= compiler
.mainmodule
329 var platform
= compiler
.target_platform
331 var outname
= outfile
(mainmodule
)
333 var real_outpath
= compile_dir
.relpath
(outname
)
334 var outpath
= real_outpath
.escape_to_mk
335 if outpath
!= real_outpath
then
336 # If the name is crazy and need escaping, we will do an indirection
337 # 1. generate the binary in the nit_compile dir under an escaped name
338 # 2. copy the binary at the right place in the `all` goal.
339 outpath
= mainmodule
.c_name
341 var makename
= makefile_name
342 var makepath
= "{compile_dir}/{makename}"
343 var makefile
= new FileWriter.open
(makepath
)
345 var linker_options
= new HashSet[String]
346 for m
in mainmodule
.in_importation
.greaters
do
347 var libs
= m
.collect_linker_libs
348 if libs
!= null then linker_options
.add_all
(libs
)
350 var debug
= toolcontext
.opt_debug
.value
352 makefile
.write
("CC = ccache cc\nCXX = ccache c++\nCFLAGS = -g{ if not debug then " -O2 " else " "}-Wno-unused-value -Wno-switch -Wno-attributes -Wno-trigraphs\nCINCL =\nLDFLAGS ?= \nLDLIBS ?= -lm {linker_options.join(" ")}\n\n")
354 makefile
.write
"\n# SPECIAL CONFIGURATION FLAGS\n"
355 if platform
.supports_libunwind
then
356 if toolcontext
.opt_no_stacktrace
.value
then
357 makefile
.write
"NO_STACKTRACE=True"
359 makefile
.write
"NO_STACKTRACE= # Set to `True` to enable"
363 # Dynamic adaptations
364 # While `platform` enable complex toolchains, they are statically applied
365 # For a dynamic adaptsation of the compilation, the generated Makefile should check and adapt things itself
366 makefile
.write
"\n\n"
368 # Check and adapt the targeted system
369 makefile
.write
("uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')\n")
371 # Check and adapt for the compiler used
372 # clang need an additionnal `-Qunused-arguments`
373 makefile
.write
("clang_check := $(shell sh -c '$(CC) -v 2>&1 | grep -q clang; echo $$?')\nifeq ($(clang_check), 0)\n\tCFLAGS += -Qunused-arguments\nendif\n")
375 if platform
.supports_libunwind
then
377 ifneq ($(NO_STACKTRACE), True)
378 # Check and include lib-unwind in a portable way
379 ifneq ($(uname_S),Darwin)
380 # already included on macosx, but need to get the correct flags in other supported platforms.
381 ifeq ($(shell pkg-config --exists 'libunwind'; echo $$?), 0)
382 LDLIBS += `pkg-config --libs libunwind`
383 CFLAGS += `pkg-config --cflags libunwind`
385 $(warning "[_] stack-traces disabled. Please install libunwind-dev.")
386 CFLAGS += -D NO_STACKTRACE
390 # Stacktraces disabled
391 CFLAGS += -D NO_STACKTRACE
396 makefile
.write
("CFLAGS += -D NO_STACKTRACE\n\n")
400 # Special configuration for Darwin
401 ifeq ($(uname_S),Darwin)
402 # Remove POSIX flag -lrt
403 LDLIBS := $(filter-out -lrt,$(LDLIBS))
408 makefile
.write
("all: {outpath}\n")
409 if outpath
!= real_outpath
then
410 makefile
.write
("\tcp -- {outpath.escape_to_sh} {real_outpath.escape_to_sh.replace("$","$$")}")
414 var ofiles
= new Array[String]
415 var dep_rules
= new Array[String]
416 # Compile each generated file
418 var o
= f
.strip_extension
(".c") + ".o"
419 makefile
.write
("{o}: {f}\n\t$(CC) $(CFLAGS) $(CINCL) -c -o {o} {f}\n\n")
424 # Generate linker script, if any
425 if not compiler
.linker_script
.is_empty
then
426 var linker_script_path
= "{compile_dir}/linker_script"
427 ofiles
.add
"linker_script"
428 var f
= new FileWriter.open
(linker_script_path
)
429 for l
in compiler
.linker_script
do
436 var java_files
= new Array[ExternFile]
438 var pkgconfigs
= new Array[String]
439 for f
in compiler
.extern_bodies
do
440 pkgconfigs
.add_all f
.pkgconfigs
443 if not pkgconfigs
.is_empty
then
445 # does pkg-config exists?
446 ifneq ($(shell which pkg-config >/dev/null; echo $$?), 0)
447 $(error "Command `pkg-config` not found. Please install it")
450 for p
in pkgconfigs
do
452 # Check for library {{{p}}}
453 ifneq ($(shell pkg-config --exists '{{{p}}}'; echo $$?), 0)
454 $(error "pkg-config: package {{{p}}} is not found.")
460 # Compile each required extern body into a specific .o
461 for f
in compiler
.extern_bodies
do
462 var o
= f
.makefile_rule_name
463 var ff
= f
.filename
.basename
464 makefile
.write
("{o}: {ff}\n")
465 makefile
.write
("\t{f.makefile_rule_content}\n\n")
466 dep_rules
.add
(f
.makefile_rule_name
)
468 if f
.compiles_to_o_file
then ofiles
.add
(o
)
469 if f
.add_to_jar
then java_files
.add
(f
)
472 if not java_files
.is_empty
then
473 var jar_file
= "{outpath}.jar"
475 var class_files_array
= new Array[String]
476 for f
in java_files
do class_files_array
.add
(f
.makefile_rule_name
)
477 var class_files
= class_files_array
.join
(" ")
479 makefile
.write
("{jar_file}: {class_files}\n")
480 makefile
.write
("\tjar cf {jar_file} {class_files}\n\n")
481 dep_rules
.add jar_file
486 if not pkgconfigs
.is_empty
then
487 pkg
= "`pkg-config --libs {pkgconfigs.join(" ")}`"
489 makefile
.write
("{outpath}: {dep_rules.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath.escape_to_sh} {ofiles.join(" ")} $(LDLIBS) {pkg}\n\n")
491 makefile
.write
("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n")
492 if outpath
!= real_outpath
then
493 makefile
.write
("\trm -- {outpath.escape_to_sh} 2>/dev/null\n")
496 self.toolcontext
.info
("Generated makefile: {makepath}", 2)
498 makepath
.file_copy_to
"{compile_dir}/Makefile"
501 # The C code is generated, compile it to an executable
502 fun compile_c_code
(compile_dir
: String)
504 var makename
= makefile_name
506 var makeflags
= self.toolcontext
.opt_make_flags
.value
507 if makeflags
== null then makeflags
= ""
509 var command
= "make -B -C {compile_dir} -f {makename} -j 4 {makeflags}"
510 self.toolcontext
.info
(command
, 2)
513 if self.toolcontext
.verbose_level
>= 3 then
514 res
= sys
.system
("{command} 2>&1")
515 else if is_windows
then
516 res
= sys
.system
("{command} 2>&1 >nul")
518 res
= sys
.system
("{command} 2>&1 >/dev/null")
521 toolcontext
.error
(null, "Compilation Error: `make` failed with error code: {res}. The command was `{command}`.")
526 # Singleton that store the knowledge about the compilation process
527 abstract class AbstractCompiler
528 type VISITOR: AbstractCompilerVisitor
530 # Table corresponding c_names to nit names (methods)
531 var names
= new HashMap[String, String]
533 # The main module of the program currently compiled
534 # Is assigned during the separate compilation
535 var mainmodule
: MModule is writable
537 # The real main module of the program
538 var realmainmodule
: MModule is noinit
540 # The modelbuilder used to know the model and the AST
541 var modelbuilder
: ModelBuilder is protected writable
543 # The associated toolchain
545 # Set by `modelbuilder.write_and_make` and permit sub-routines to access the current toolchain if required.
546 var toolchain
: Toolchain is noinit
548 # Is hardening asked? (see --hardening)
549 fun hardening
: Bool do return self.modelbuilder
.toolcontext
.opt_hardening
.value
551 # The targeted specific platform
552 var target_platform
: Platform is noinit
556 self.realmainmodule
= mainmodule
557 target_platform
= mainmodule
.target_platform
or else new Platform
560 # Do the full code generation of the program `mainmodule`
561 # It is the main method usually called after the instantiation
562 fun do_compilation
is abstract
564 # Force the creation of a new file
565 # The point is to avoid contamination between must-be-compiled-separately files
566 fun new_file
(name
: String): CodeFile
568 if modelbuilder
.toolcontext
.opt_group_c_files
.value
then
569 if self.files
.is_empty
then
570 var f
= new CodeFile(mainmodule
.c_name
)
573 return self.files
.first
575 var f
= new CodeFile(name
)
580 # The list of all associated files
581 # Used to generate .c files
582 var files
= new Array[CodeFile]
584 # Initialize a visitor specific for a compiler engine
585 fun new_visitor
: VISITOR is abstract
587 # Where global declaration are stored (the main .h)
588 var header
: CodeWriter is writable, noinit
590 # Additionnal linker script for `ld`.
591 # Mainly used to do specific link-time symbol resolution
592 var linker_script
= new Array[String]
594 # Provide a declaration that can be requested (before or latter) by a visitor
595 fun provide_declaration
(key
: String, s
: String)
597 if self.provided_declarations
.has_key
(key
) then
598 assert self.provided_declarations
[key
] == s
600 self.provided_declarations
[key
] = s
603 private var provided_declarations
= new HashMap[String, String]
605 private var requirers_of_declarations
= new HashMap[String, ANode]
607 # Builds the .c and .h files to be used when generating a Stack Trace
608 # Binds the generated C function names to Nit function names
609 fun build_c_to_nit_bindings
611 var compile_dir
= toolchain
.compile_dir
613 var stream
= new FileWriter.open
("{compile_dir}/c_functions_hash.c")
614 stream
.write
("#include <string.h>\n")
615 stream
.write
("#include <stdlib.h>\n")
616 stream
.write
("#include \"c_functions_hash
.h\
"\n")
617 stream
.write
("typedef struct C_Nit_Names\{char* name; char* nit_name;\}C_Nit_Names;\n")
618 stream
.write
("const char* get_nit_name(register const char* procproc, register unsigned int len)\{\n")
619 stream
.write
("char* procname = malloc(len+1);")
620 stream
.write
("memcpy(procname, procproc, len);")
621 stream
.write
("procname[len] = '\\0';")
622 stream
.write
("static const C_Nit_Names map[{names.length}] = \{\n")
623 for i
in names
.keys
do
625 stream.write(i.escape_to_c)
626 stream.write("\
",\"")
627 stream.write(names[i].escape_to_c)
628 stream.write("\
"\},\n")
630 stream
.write
("\};\n")
631 stream
.write
("int i;")
632 stream
.write
("for(i = 0; i < {names.length}; i++)\{")
633 stream
.write
("if(strcmp(procname,map[i].name) == 0)\{")
634 stream
.write
("free(procname);")
635 stream
.write
("return map[i].nit_name;")
638 stream
.write
("free(procname);")
639 stream
.write
("return NULL;")
643 stream
= new FileWriter.open
("{compile_dir}/c_functions_hash.h")
644 stream
.write
("const char* get_nit_name(register const char* procname, register unsigned int len);\n")
647 extern_bodies
.add
(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
651 # This method call compile_header_strucs method that has to be refined
652 fun compile_header
do
653 self.header
.add_decl
("#include <stdlib.h>")
654 self.header
.add_decl
("#include <stdio.h>")
655 self.header
.add_decl
("#include <string.h>")
657 self.header
.add_decl
("#include <setjmp.h>\n")
658 self.header
.add_decl
("#include <sys/types.h>\n")
659 self.header
.add_decl
("#include <unistd.h>\n")
660 self.header
.add_decl
("#include <stdint.h>\n")
661 self.header
.add_decl
("#ifdef __linux__")
662 self.header
.add_decl
(" #include <endian.h>")
663 self.header
.add_decl
("#endif")
664 self.header
.add_decl
("#include <inttypes.h>\n")
665 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
666 self.header
.add_decl
("#ifdef __APPLE__")
667 self.header
.add_decl
(" #include <TargetConditionals.h>")
668 self.header
.add_decl
(" #include <syslog.h>")
669 self.header
.add_decl
(" #include <libkern/OSByteOrder.h>")
670 self.header
.add_decl
(" #define be32toh(x) OSSwapBigToHostInt32(x)")
671 self.header
.add_decl
("#endif")
672 self.header
.add_decl
("#ifdef _WIN32")
673 self.header
.add_decl
(" #define be32toh(val) _byteswap_ulong(val)")
674 self.header
.add_decl
("#endif")
675 self.header
.add_decl
("#ifdef __pnacl__")
676 self.header
.add_decl
(" #define be16toh(val) (((val) >> 8) | ((val) << 8))")
677 self.header
.add_decl
(" #define be32toh(val) ((be16toh((val) << 16) | (be16toh((val) >> 16))))")
678 self.header
.add_decl
("#endif")
679 self.header
.add_decl
("#ifdef ANDROID")
680 self.header
.add_decl
(" #ifndef be32toh")
681 self.header
.add_decl
(" #define be32toh(val) betoh32(val)")
682 self.header
.add_decl
(" #endif")
683 self.header
.add_decl
(" #include <android/log.h>")
684 self.header
.add_decl
(" #define PRINT_ERROR(...) (void)__android_log_print(ANDROID_LOG_WARN, \"Nit\
", __VA_ARGS__)")
685 self.header
.add_decl
("#elif TARGET_OS_IPHONE")
686 self.header
.add_decl
(" #define PRINT_ERROR(...) syslog(LOG_ERR, __VA_ARGS__)")
687 self.header
.add_decl
("#else")
688 self.header
.add_decl
(" #define PRINT_ERROR(...) fprintf(stderr, __VA_ARGS__)")
689 self.header
.add_decl
("#endif")
691 compile_header_structs
692 compile_nitni_structs
695 var gccd_disable
= modelbuilder
.toolcontext
.opt_no_gcc_directive
.value
696 if gccd_disable
.has
("noreturn") or gccd_disable
.has
("all") then
697 # Signal handler function prototype
698 self.header
.add_decl
("void fatal_exit(int);")
700 self.header
.add_decl
("void fatal_exit(int) __attribute__ ((noreturn));")
703 if gccd_disable
.has
("likely") or gccd_disable
.has
("all") then
704 self.header
.add_decl
("#define likely(x) (x)")
705 self.header
.add_decl
("#define unlikely(x) (x)")
706 else if gccd_disable
.has
("correct-likely") then
707 # invert the `likely` definition
708 # Used by masochists to bench the worst case
709 self.header
.add_decl
("#define likely(x) __builtin_expect((x),0)")
710 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),1)")
712 self.header
.add_decl
("#define likely(x) __builtin_expect((x),1)")
713 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),0)")
716 # Global variable used by intern methods
717 self.header
.add_decl
("extern int glob_argc;")
718 self.header
.add_decl
("extern char **glob_argv;")
719 self.header
.add_decl
("extern val *glob_sys;")
722 # Stack stocking environment for longjumps
723 protected fun compile_catch_stack
do
724 self.header
.add_decl
"""
725 struct catch_stack_t {
729 extern struct catch_stack_t catchStack;
733 # Declaration of structures for live Nit types
734 protected fun compile_header_structs
is abstract
736 # Declaration of structures for nitni undelying the FFI
737 protected fun compile_nitni_structs
739 self.header
.add_decl
"""
740 /* Native reference to Nit objects */
741 /* This structure is used to represent every Nit type in extern methods and custom C code. */
743 struct nitni_ref *next,
744 *prev; /* adjacent global references in global list */
745 int count; /* number of time this global reference has been marked */
748 /* List of global references from C code to Nit objects */
749 /* Instanciated empty at init of Nit system and filled explicitly by user in C code */
750 struct nitni_global_ref_list_t {
751 struct nitni_ref *head, *tail;
753 extern struct nitni_global_ref_list_t *nitni_global_ref_list;
755 /* Initializer of global reference list */
756 extern void nitni_global_ref_list_init();
758 /* Intern function to add a global reference to the list */
759 extern void nitni_global_ref_add( struct nitni_ref *ref );
761 /* Intern function to remove a global reference from the list */
762 extern void nitni_global_ref_remove( struct nitni_ref *ref );
764 /* Increase count on an existing global reference */
765 extern void nitni_global_ref_incr( struct nitni_ref *ref );
767 /* Decrease count on an existing global reference */
768 extern void nitni_global_ref_decr( struct nitni_ref *ref );
772 fun compile_finalizer_function
774 var finalizable_type
= mainmodule
.finalizable_type
775 if finalizable_type
== null then return
777 var finalize_meth
= mainmodule
.try_get_primitive_method
("finalize", finalizable_type
.mclass
)
779 if finalize_meth
== null then
780 modelbuilder
.toolcontext
.error
(null, "Error: the `Finalizable` class does not declare the `finalize` method.")
784 var v
= self.new_visitor
785 v
.add_decl
"void gc_finalize (void *obj, void *client_data) \{"
786 var recv
= v
.new_expr
("obj", finalizable_type
)
787 v
.send
(finalize_meth
, [recv
])
791 # Hook to add specif piece of code before the the main C function.
793 # Is called by `compile_main_function`
794 fun compile_before_main
(v
: VISITOR)
798 # Hook to add specif piece of code at the begin on the main C function.
800 # Is called by `compile_main_function`
801 fun compile_begin_main
(v
: VISITOR)
805 # Generate the main C function.
809 # * allocate the Sys object if it exists
810 # * call init if is exists
811 # * call main if it exists
812 fun compile_main_function
814 var v
= self.new_visitor
815 v
.add_decl
("#include <signal.h>")
816 var platform
= target_platform
818 var no_main
= platform
.no_main
or modelbuilder
.toolcontext
.opt_no_main
.value
820 if platform
.supports_libunwind
then
821 v
.add_decl
("#ifndef NO_STACKTRACE")
822 v
.add_decl
("#define UNW_LOCAL_ONLY")
823 v
.add_decl
("#include <libunwind.h>")
824 v
.add_decl
("#include \"c_functions_hash
.h\
"")
827 v
.add_decl
("int glob_argc;")
828 v
.add_decl
("char **glob_argv;")
829 v
.add_decl
("val *glob_sys;")
830 v
.add_decl
("struct catch_stack_t catchStack;")
832 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
833 for tag
in count_type_test_tags
do
834 v
.add_decl
("long count_type_test_resolved_{tag};")
835 v
.add_decl
("long count_type_test_unresolved_{tag};")
836 v
.add_decl
("long count_type_test_skipped_{tag};")
837 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
838 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
839 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
843 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
844 v
.add_decl
("long count_invoke_by_tables;")
845 v
.add_decl
("long count_invoke_by_direct;")
846 v
.add_decl
("long count_invoke_by_inline;")
847 v
.compiler
.header
.add_decl
("extern long count_invoke_by_tables;")
848 v
.compiler
.header
.add_decl
("extern long count_invoke_by_direct;")
849 v
.compiler
.header
.add_decl
("extern long count_invoke_by_inline;")
852 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
853 v
.add_decl
("long count_attr_reads = 0;")
854 v
.add_decl
("long count_isset_checks = 0;")
855 v
.compiler
.header
.add_decl
("extern long count_attr_reads;")
856 v
.compiler
.header
.add_decl
("extern long count_isset_checks;")
859 v
.add_decl
("static void show_backtrace(void) \{")
860 if platform
.supports_libunwind
then
861 v
.add_decl
("#ifndef NO_STACKTRACE")
862 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
863 v
.add_decl
("unw_cursor_t cursor;")
864 v
.add_decl
("if(opt==NULL)\{")
865 v
.add_decl
("unw_context_t uc;")
866 v
.add_decl
("unw_word_t ip;")
867 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
868 v
.add_decl
("unw_getcontext(&uc);")
869 v
.add_decl
("unw_init_local(&cursor, &uc);")
870 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
871 v
.add_decl
("PRINT_ERROR(\"-- Stack Trace ------------------------------\\n\
");")
872 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
873 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
874 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
875 v
.add_decl
(" const char* recv = get_nit_name(procname, strlen(procname));")
876 v
.add_decl
(" if (recv != NULL)\{")
877 v
.add_decl
(" PRINT_ERROR(\"` %s\\n\", recv);")
878 v.add_decl(" \}else\{")
879 v.add_decl(" PRINT_ERROR(\"` %s\\n\
", procname);")
882 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
883 v
.add_decl
("free(procname);")
885 v
.add_decl
("#endif /* NO_STACKTRACE */")
889 v
.add_decl
("void sig_handler(int signo)\{")
890 v
.add_decl
"#ifdef _WIN32"
891 v
.add_decl
"PRINT_ERROR(\"Caught signal
: %s\\n\
", signo);"
893 v
.add_decl
("PRINT_ERROR(\"Caught signal
: %s\\n\
", strsignal(signo));")
895 v
.add_decl
("show_backtrace();")
897 v
.add_decl
("signal(signo, SIG_DFL);")
898 v
.add_decl
"#ifndef _WIN32"
899 v
.add_decl
("kill(getpid(), signo);")
903 v
.add_decl
("void fatal_exit(int status) \{")
904 v
.add_decl
("show_backtrace();")
905 v
.add_decl
("exit(status);")
908 compile_before_main
(v
)
911 v
.add_decl
("int nit_main(int argc, char** argv) \{")
913 v
.add_decl
("int main(int argc, char** argv) \{")
916 compile_begin_main
(v
)
918 v
.add
"#if !defined(__ANDROID__) && !defined(TARGET_OS_IPHONE)"
919 v
.add
("signal(SIGABRT, sig_handler);")
920 v
.add
("signal(SIGFPE, sig_handler);")
921 v
.add
("signal(SIGILL, sig_handler);")
922 v
.add
("signal(SIGINT, sig_handler);")
923 v
.add
("signal(SIGTERM, sig_handler);")
924 v
.add
("signal(SIGSEGV, sig_handler);")
926 v
.add
"#ifndef _WIN32"
927 v
.add
("signal(SIGPIPE, SIG_IGN);")
930 v
.add
("glob_argc = argc; glob_argv = argv;")
931 v
.add
("catchStack.cursor = -1;")
932 v
.add
("initialize_gc_option();")
934 v
.add
"initialize_nitni_global_refs();"
936 var main_type
= mainmodule
.sys_type
937 if main_type
!= null then
938 var mainmodule
= v
.compiler
.mainmodule
939 var glob_sys
= v
.init_instance
(main_type
)
940 v
.add
("glob_sys = {glob_sys};")
941 var main_init
= mainmodule
.try_get_primitive_method
("init", main_type
.mclass
)
942 if main_init
!= null then
943 v
.send
(main_init
, [glob_sys
])
945 var main_method
= mainmodule
.try_get_primitive_method
("run", main_type
.mclass
) or else
946 mainmodule
.try_get_primitive_method
("main", main_type
.mclass
)
947 if main_method
!= null then
948 v
.send
(main_method
, [glob_sys
])
952 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
953 v
.add_decl
("long count_type_test_resolved_total = 0;")
954 v
.add_decl
("long count_type_test_unresolved_total = 0;")
955 v
.add_decl
("long count_type_test_skipped_total = 0;")
956 v
.add_decl
("long count_type_test_total_total = 0;")
957 for tag
in count_type_test_tags
do
958 v
.add_decl
("long count_type_test_total_{tag};")
959 v
.add
("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
960 v
.add
("count_type_test_resolved_total += count_type_test_resolved_{tag};")
961 v
.add
("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
962 v
.add
("count_type_test_skipped_total += count_type_test_skipped_{tag};")
963 v
.add
("count_type_test_total_total += count_type_test_total_{tag};")
965 v
.add
("printf(\"# dynamic count_type_test: total %l\\n\");")
966 v
.add
("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\
");")
967 var tags
= count_type_test_tags
.to_a
970 v
.add
("printf(\"{tag}\
");")
971 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
972 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
973 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
974 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\\n\
", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
978 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
979 v
.add_decl
("long count_invoke_total;")
980 v
.add
("count_invoke_total = count_invoke_by_tables + count_invoke_by_direct + count_invoke_by_inline;")
981 v
.add
("printf(\"# dynamic count_invocation: total %ld\\n\", count_invoke_total);")
982 v
.add
("printf(\"by table
: %ld
(%.2f
%%)\\n\
", count_invoke_by_tables, 100.0*count_invoke_by_tables/count_invoke_total);")
983 v
.add
("printf(\"direct
: %ld
(%.2f
%%)\\n\
", count_invoke_by_direct, 100.0*count_invoke_by_direct/count_invoke_total);")
984 v
.add
("printf(\"inlined
: %ld
(%.2f
%%)\\n\
", count_invoke_by_inline, 100.0*count_invoke_by_inline/count_invoke_total);")
987 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
988 v
.add
("printf(\"# dynamic attribute reads: %ld\\n\", count_attr_reads);")
989 v
.add
("printf(\"# dynamic isset checks: %ld\\n\", count_isset_checks);")
995 for m
in mainmodule
.in_importation
.greaters
do
996 var f
= "FILE_"+m
.c_name
997 v
.add
"const char {f}[] = \"{m.location.file.filename.escape_to_c}\
";"
998 provide_declaration
(f
, "extern const char {f}[];")
1002 # Copile all C functions related to the [incr|decr]_ref features of the FFI
1003 fun compile_nitni_global_ref_functions
1005 var v
= self.new_visitor
1007 struct nitni_global_ref_list_t *nitni_global_ref_list;
1008 void initialize_nitni_global_refs() {
1009 nitni_global_ref_list = (struct nitni_global_ref_list_t*)nit_alloc(sizeof(struct nitni_global_ref_list_t));
1010 nitni_global_ref_list->head = NULL;
1011 nitni_global_ref_list->tail = NULL;
1014 void nitni_global_ref_add( struct nitni_ref *ref ) {
1015 if ( nitni_global_ref_list->head == NULL ) {
1016 nitni_global_ref_list->head = ref;
1019 nitni_global_ref_list->tail->next = ref;
1020 ref->prev = nitni_global_ref_list->tail;
1022 nitni_global_ref_list->tail = ref;
1027 void nitni_global_ref_remove( struct nitni_ref *ref ) {
1028 if ( ref->prev == NULL ) {
1029 nitni_global_ref_list->head = ref->next;
1031 ref->prev->next = ref->next;
1034 if ( ref->next == NULL ) {
1035 nitni_global_ref_list->tail = ref->prev;
1037 ref->next->prev = ref->prev;
1041 extern void nitni_global_ref_incr( struct nitni_ref *ref ) {
1042 if ( ref->count == 0 ) /* not registered */
1045 nitni_global_ref_add( ref );
1051 extern void nitni_global_ref_decr( struct nitni_ref *ref ) {
1052 if ( ref->count == 1 ) /* was last reference */
1054 /* remove from list */
1055 nitni_global_ref_remove( ref );
1063 # List of additional files required to compile (FFI)
1064 var extern_bodies
= new Array[ExternFile]
1066 # List of source files to copy over to the compile dir
1067 var files_to_copy
= new Array[String]
1069 # This is used to avoid adding an extern file more than once
1070 private var seen_extern
= new ArraySet[String]
1072 # Generate code that initialize the attributes on a new instance
1073 fun generate_init_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1075 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1076 self.mainmodule
.linearize_mclassdefs
(cds
)
1078 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1079 npropdef
.init_expr
(v
, recv
)
1084 # Generate code that check if an attribute is correctly initialized
1085 fun generate_check_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1087 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1088 self.mainmodule
.linearize_mclassdefs
(cds
)
1090 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1091 npropdef
.check_expr
(v
, recv
)
1098 var count_type_test_tags
: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
1099 var count_type_test_resolved
: HashMap[String, Int] = init_count_type_test_tags
1100 var count_type_test_unresolved
: HashMap[String, Int] = init_count_type_test_tags
1101 var count_type_test_skipped
: HashMap[String, Int] = init_count_type_test_tags
1103 protected fun init_count_type_test_tags
: HashMap[String, Int]
1105 var res
= new HashMap[String, Int]
1106 for tag
in count_type_test_tags
do
1112 # Display stats about compilation process
1116 # * type tests against resolved types (`x isa Collection[Animal]`)
1117 # * type tests against unresolved types (`x isa Collection[E]`)
1118 # * type tests skipped
1119 # * type tests total
1122 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1123 print
"# static count_type_test"
1124 print
"\tresolved:\tunresolved\tskipped\ttotal"
1125 var count_type_test_total
= init_count_type_test_tags
1126 count_type_test_resolved
["total"] = 0
1127 count_type_test_unresolved
["total"] = 0
1128 count_type_test_skipped
["total"] = 0
1129 count_type_test_total
["total"] = 0
1130 for tag
in count_type_test_tags
do
1131 count_type_test_total
[tag
] = count_type_test_resolved
[tag
] + count_type_test_unresolved
[tag
] + count_type_test_skipped
[tag
]
1132 count_type_test_resolved
["total"] += count_type_test_resolved
[tag
]
1133 count_type_test_unresolved
["total"] += count_type_test_unresolved
[tag
]
1134 count_type_test_skipped
["total"] += count_type_test_skipped
[tag
]
1135 count_type_test_total
["total"] += count_type_test_total
[tag
]
1137 var count_type_test
= count_type_test_total
["total"]
1138 var tags
= count_type_test_tags
.to_a
1142 printn
"\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
1143 printn
"\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
1144 printn
"\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
1145 printn
"\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
1151 fun finalize_ffi_for_module
(mmodule
: MModule) do mmodule
.finalize_ffi
(self)
1154 # C code file generated from the `writers` and the `required_declarations`
1156 # A file unit aims to be autonomous and is made or one or more `CodeWriter`s.
1158 # Basename of the file, will be appended by `.h` and `.c`
1161 # `CodeWriter` used in sequence to fill the top of the body, then the bottom
1162 var writers
= new Array[CodeWriter]
1164 # Required declarations keys
1166 # See: `provide_declaration`
1167 var required_declarations
= new HashSet[String]
1170 # Store generated lines
1172 # Instances are added to `file.writers` at construction.
1177 # Main lines of code (written at the bottom of the body)
1178 var lines
= new Array[String]
1180 # Lines of code for declarations (written at the top of the body)
1181 var decl_lines
= new Array[String]
1183 # Add a line in the main lines of code (to `lines`)
1184 fun add
(s
: String) do self.lines
.add
(s
)
1186 # Add a declaration line (to `decl_lines`)
1188 # Used for local and global declaration.
1189 fun add_decl
(s
: String) do self.decl_lines
.add
(s
)
1193 file
.writers
.add
(self)
1197 # A visitor on the AST of property definition that generate the C code.
1198 abstract class AbstractCompilerVisitor
1200 type COMPILER: AbstractCompiler
1202 # The associated compiler
1203 var compiler
: COMPILER
1205 # The current visited AST node
1206 var current_node
: nullable ANode = null is writable
1208 # The current `StaticFrame`
1209 var frame
: nullable StaticFrame = null is writable
1211 # Alias for self.compiler.mainmodule.object_type
1212 fun object_type
: MClassType do return self.compiler
.mainmodule
.object_type
1214 # Alias for self.compiler.mainmodule.bool_type
1215 fun bool_type
: MClassType do return self.compiler
.mainmodule
.bool_type
1217 var writer
: CodeWriter is noinit
1221 self.writer
= new CodeWriter(compiler
.files
.last
)
1224 # Force to get the primitive property named `name` in the instance `recv` or abort
1225 fun get_property
(name
: String, recv
: MType): MMethod
1227 assert recv
isa MClassType
1228 return self.compiler
.modelbuilder
.force_get_primitive_method
(self.current_node
, name
, recv
.mclass
, self.compiler
.mainmodule
)
1231 fun compile_callsite
(callsite
: CallSite, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1233 if callsite
.is_broken
then return null
1234 var initializers
= callsite
.mpropdef
.initializers
1235 if not initializers
.is_empty
then
1236 var recv
= arguments
.first
1239 for p
in initializers
do
1240 if p
isa MMethod then
1242 for x
in p
.intro
.msignature
.mparameters
do
1243 args
.add arguments
[i
]
1247 else if p
isa MAttribute then
1248 self.write_attribute
(p
, recv
, arguments
[i
])
1252 assert i
== arguments
.length
1254 return self.send
(callsite
.mproperty
, [recv
])
1257 return self.send
(callsite
.mproperty
, arguments
)
1260 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable is abstract
1262 fun native_array_def
(pname
: String, ret_type
: nullable MType, arguments
: Array[RuntimeVariable]): Bool do return false
1264 # Return an element of a native array.
1265 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1266 fun native_array_get
(native_array
: RuntimeVariable, index
: Int): RuntimeVariable is abstract
1268 # Store an element in a native array.
1269 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1270 fun native_array_set
(native_array
: RuntimeVariable, index
: Int, value
: RuntimeVariable) is abstract
1272 # Allocate `size` bytes with the low_level `nit_alloc` C function
1274 # This method can be redefined to inject statistic or tracing code.
1276 # `tag` if any, is used to mark the class of the allocated object.
1277 fun nit_alloc
(size
: String, tag
: nullable String): String
1279 return "nit_alloc({size})"
1282 # Evaluate `args` as expressions in the call of `mpropdef` on `recv`.
1283 # This method is used to manage varargs in signatures and returns the real array
1284 # of runtime variables to use in the call.
1285 fun varargize
(mpropdef
: MMethodDef, map
: nullable SignatureMap, recv
: RuntimeVariable, args
: SequenceRead[AExpr]): Array[RuntimeVariable]
1287 var msignature
= mpropdef
.new_msignature
or else mpropdef
.msignature
.as(not null)
1288 var res
= new Array[RuntimeVariable]
1291 if msignature
.arity
== 0 then return res
1294 assert args
.length
== msignature
.arity
1296 res
.add
self.expr
(ne
, null)
1301 # Eval in order of arguments, not parameters
1302 var exprs
= new Array[RuntimeVariable].with_capacity
(args
.length
)
1304 exprs
.add
self.expr
(ne
, null)
1307 # Fill `res` with the result of the evaluation according to the mapping
1308 for i
in [0..msignature
.arity
[ do
1309 var param
= msignature
.mparameters
[i
]
1310 var j
= map
.map
.get_or_null
(i
)
1313 res
.add
(null_instance
)
1316 if param
.is_vararg
and args
[i
].vararg_decl
> 0 then
1317 var vararg
= exprs
.sub
(j
, args
[i
].vararg_decl
)
1318 var elttype
= param
.mtype
1319 var arg
= self.vararg_instance
(mpropdef
, recv
, vararg
, elttype
)
1330 # Anchor a type to the main module and the current receiver
1331 fun anchor
(mtype
: MType): MType
1333 if not mtype
.need_anchor
then return mtype
1334 return mtype
.anchor_to
(self.compiler
.mainmodule
, self.frame
.receiver
)
1337 fun resolve_for
(mtype
: MType, recv
: RuntimeVariable): MType
1339 if not mtype
.need_anchor
then return mtype
1340 return mtype
.resolve_for
(recv
.mcasttype
, self.frame
.receiver
, self.compiler
.mainmodule
, true)
1343 # Unsafely cast a value to a new type
1344 # ie the result share the same C variable but my have a different mcasttype
1345 # NOTE: if the adaptation is useless then `value` is returned as it.
1346 # ENSURE: `result.name == value.name`
1347 fun autoadapt
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable
1349 mtype
= self.anchor
(mtype
)
1350 var valmtype
= value
.mcasttype
1352 # Do nothing if useless autocast
1353 if valmtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1357 # Just as_not_null if the target is not nullable.
1359 # eg `nullable PreciseType` adapted to `Object` gives precisetype.
1360 if valmtype
isa MNullableType and valmtype
.mtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1361 mtype
= valmtype
.mtype
1364 var res
= new RuntimeVariable(value
.name
, value
.mtype
, mtype
)
1368 # Generate a super call from a method definition
1369 fun supercall
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1371 # Adapt the arguments of a method according to targetted `MMethodDef`
1372 fun adapt_signature
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1374 # Unbox all the arguments of a method when implemented `extern` or `intern`
1375 fun unbox_signature_extern
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1377 # Box or unbox a value to another type iff a C type conversion is needed
1378 # ENSURE: `result.mtype.ctype == mtype.ctype`
1379 fun autobox
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1381 # Box extern classes to be used in the generated code
1382 fun box_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1384 # Unbox extern classes to be used in extern code (legacy NI and FFI)
1385 fun unbox_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1387 # Generate a polymorphic subtype test
1388 fun type_test
(value
: RuntimeVariable, mtype
: MType, tag
: String): RuntimeVariable is abstract
1390 # Generate the code required to dynamically check if 2 objects share the same runtime type
1391 fun is_same_type_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1393 # Generate a Nit "is" for two runtime_variables
1394 fun equal_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1398 # Generate a static call on a method definition
1399 fun call
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1401 # Generate a polymorphic send for the method `m` and the arguments `args`
1402 fun send
(m
: MMethod, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1404 # Generate a monomorphic send for the method `m`, the type `t` and the arguments `args`
1405 fun monomorphic_send
(m
: MMethod, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1407 assert t
isa MClassType
1408 var propdef
= m
.lookup_first_definition
(self.compiler
.mainmodule
, t
)
1409 return self.call
(propdef
, t
, args
)
1412 # Generate a monomorphic super send from the method `m`, the type `t` and the arguments `args`
1413 fun monomorphic_super_send
(m
: MMethodDef, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1415 assert t
isa MClassType
1416 m
= m
.lookup_next_definition
(self.compiler
.mainmodule
, t
)
1417 return self.call
(m
, t
, args
)
1420 # Attributes handling
1422 # Generate a polymorphic attribute is_set test
1423 fun isset_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1425 # Generate a polymorphic attribute read
1426 fun read_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1428 # Generate a polymorphic attribute write
1429 fun write_attribute
(a
: MAttribute, recv
: RuntimeVariable, value
: RuntimeVariable) is abstract
1433 # Can value be null? (according to current knowledge)
1434 fun maybenull
(value
: RuntimeVariable): Bool
1436 return value
.mcasttype
isa MNullableType or value
.mcasttype
isa MNullType
1439 # Add a check and an abort for a null receiver if needed
1440 fun check_recv_notnull
(recv
: RuntimeVariable)
1442 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_null
.value
then return
1444 if maybenull
(recv
) then
1445 self.add
("if (unlikely({recv} == NULL)) \{")
1446 self.add_abort
("Receiver is null")
1453 private var names
= new HashSet[String]
1454 private var last
: Int = 0
1456 # Return a new name based on `s` and unique in the visitor
1457 fun get_name
(s
: String): String
1459 if not self.names
.has
(s
) then
1463 var i
= self.last
+ 1
1466 if not self.names
.has
(s2
) then
1475 # Return an unique and stable identifier associated with an escapemark
1476 fun escapemark_name
(e
: nullable EscapeMark): String
1479 if frame
.escapemark_names
.has_key
(e
) then return frame
.escapemark_names
[e
]
1481 if name
== null then name
= "label"
1482 name
= get_name
(name
)
1483 frame
.escapemark_names
[e
] = name
1487 # Insert a C label for associated with an escapemark
1488 fun add_escape_label
(e
: nullable EscapeMark)
1490 if e
== null then return
1491 if e
.escapes
.is_empty
then return
1492 add
("BREAK_{escapemark_name(e)}: (void)0;")
1495 # Return a "const char*" variable associated to the classname of the dynamic type of an object
1496 # NOTE: we do not return a `RuntimeVariable` "CString" as the class may not exist in the module/program
1497 fun class_name_string
(value
: RuntimeVariable): String is abstract
1499 # Variables handling
1501 protected var variables
= new HashMap[Variable, RuntimeVariable]
1503 # Return the local runtime_variable associated to a Nit local variable
1504 fun variable
(variable
: Variable): RuntimeVariable
1506 if self.variables
.has_key
(variable
) then
1507 return self.variables
[variable
]
1509 var name
= self.get_name
("var_{variable.name}")
1510 var mtype
= variable
.declared_type
.as(not null)
1511 mtype
= self.anchor
(mtype
)
1512 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1513 self.add_decl
("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
1514 self.variables
[variable
] = res
1519 # Return a new uninitialized local runtime_variable
1520 fun new_var
(mtype
: MType): RuntimeVariable
1522 mtype
= self.anchor
(mtype
)
1523 var name
= self.get_name
("var")
1524 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1525 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1529 # The difference with `new_var` is the C static type of the local variable
1530 fun new_var_extern
(mtype
: MType): RuntimeVariable
1532 mtype
= self.anchor
(mtype
)
1533 var name
= self.get_name
("var")
1534 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1535 self.add_decl
("{mtype.ctype_extern} {name} /* : {mtype} for extern */;")
1539 # Return a new uninitialized named runtime_variable
1540 fun new_named_var
(mtype
: MType, name
: String): RuntimeVariable
1542 mtype
= self.anchor
(mtype
)
1543 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1544 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1548 # Correctly assign a left and a right value
1549 # Boxing and unboxing is performed if required
1550 fun assign
(left
, right
: RuntimeVariable)
1552 right
= self.autobox
(right
, left
.mtype
)
1553 self.add
("{left} = {right};")
1556 # Generate instances
1558 # Generate a alloc-instance + init-attributes
1559 fun init_instance
(mtype
: MClassType): RuntimeVariable is abstract
1561 # Allocate and init attributes of an instance of a standard or extern class
1563 # Does not support universals and the pseudo-internal `NativeArray` class.
1564 fun init_instance_or_extern
(mtype
: MClassType): RuntimeVariable
1567 var ctype
= mtype
.ctype
1568 assert mtype
.mclass
.name
!= "NativeArray"
1569 if not mtype
.is_c_primitive
then
1570 recv
= init_instance
(mtype
)
1571 else if ctype
== "char*" then
1572 recv
= new_expr
("NULL/*special!*/", mtype
)
1574 recv
= new_expr
("({ctype})0/*special!*/", mtype
)
1579 # Set a GC finalizer on `recv`, only if `recv` isa Finalizable
1580 fun set_finalizer
(recv
: RuntimeVariable)
1582 var mtype
= recv
.mtype
1583 var finalizable_type
= compiler
.mainmodule
.finalizable_type
1584 if finalizable_type
!= null and not mtype
.need_anchor
and
1585 mtype
.is_subtype
(compiler
.mainmodule
, null, finalizable_type
) then
1586 add
"gc_register_finalizer({recv});"
1590 # The currently processed module
1592 # alias for `compiler.mainmodule`
1593 fun mmodule
: MModule do return compiler
.mainmodule
1595 # Generate an integer value
1596 fun int_instance
(value
: Int): RuntimeVariable
1598 var t
= mmodule
.int_type
1599 var res
= new RuntimeVariable("{value.to_s}l", t
, t
)
1603 # Generate a byte value
1604 fun byte_instance
(value
: Byte): RuntimeVariable
1606 var t
= mmodule
.byte_type
1607 var res
= new RuntimeVariable("((unsigned char){value.to_s})", t
, t
)
1611 # Generate an int8 value
1612 fun int8_instance
(value
: Int8): RuntimeVariable
1614 var t
= mmodule
.int8_type
1615 var res
= new RuntimeVariable("((int8_t){value.to_s})", t
, t
)
1619 # Generate an int16 value
1620 fun int16_instance
(value
: Int16): RuntimeVariable
1622 var t
= mmodule
.int16_type
1623 var res
= new RuntimeVariable("((int16_t){value.to_s})", t
, t
)
1627 # Generate a uint16 value
1628 fun uint16_instance
(value
: UInt16): RuntimeVariable
1630 var t
= mmodule
.uint16_type
1631 var res
= new RuntimeVariable("((uint16_t){value.to_s})", t
, t
)
1635 # Generate an int32 value
1636 fun int32_instance
(value
: Int32): RuntimeVariable
1638 var t
= mmodule
.int32_type
1639 var res
= new RuntimeVariable("((int32_t){value.to_s})", t
, t
)
1643 # Generate a uint32 value
1644 fun uint32_instance
(value
: UInt32): RuntimeVariable
1646 var t
= mmodule
.uint32_type
1647 var res
= new RuntimeVariable("((uint32_t){value.to_s})", t
, t
)
1651 # Generate a char value
1652 fun char_instance
(value
: Char): RuntimeVariable
1654 var t
= mmodule
.char_type
1656 if value
.code_point
< 128 then
1657 return new RuntimeVariable("'{value.to_s.escape_to_c}'", t
, t
)
1659 return new RuntimeVariable("{value.code_point}", t
, t
)
1663 # Generate a float value
1665 # FIXME pass a Float, not a string
1666 fun float_instance
(value
: String): RuntimeVariable
1668 var t
= mmodule
.float_type
1669 var res
= new RuntimeVariable("{value}", t
, t
)
1673 # Generate an integer value
1674 fun bool_instance
(value
: Bool): RuntimeVariable
1676 var s
= if value
then "1" else "0"
1677 var res
= new RuntimeVariable(s
, bool_type
, bool_type
)
1681 # Generate the `null` value
1682 fun null_instance
: RuntimeVariable
1684 var t
= compiler
.mainmodule
.model
.null_type
1685 var res
= new RuntimeVariable("((val*)NULL)", t
, t
)
1689 # Generates a CString instance fully escaped in C-style \xHH fashion
1690 fun c_string_instance
(ns
: CString, len
: Int): RuntimeVariable do
1691 var mtype
= mmodule
.c_string_type
1692 var nat
= new_var
(mtype
)
1693 var byte_esc
= new Buffer.with_cap
(len
* 4)
1694 for i
in [0 .. len
[ do
1695 byte_esc
.append
("\\x{ns[i].to_s.substring_from(2)}")
1697 self.add
("{nat} = \"{byte_esc}\
";")
1701 # Generate a string value
1702 fun string_instance
(string
: String): RuntimeVariable
1704 var mtype
= mmodule
.string_type
1705 var name
= self.get_name
("varonce")
1706 self.add_decl
("static {mtype.ctype} {name};")
1707 var res
= self.new_var
(mtype
)
1708 self.add
("if (likely({name}!=NULL)) \{")
1709 self.add
("{res} = {name};")
1710 self.add
("\} else \{")
1711 var native_mtype
= mmodule
.c_string_type
1712 var nat
= self.new_var
(native_mtype
)
1713 self.add
("{nat} = \"{string.escape_to_c}\
";")
1714 var byte_length
= self.int_instance
(string
.byte_length
)
1715 var unilen
= self.int_instance
(string
.length
)
1716 self.add
("{res} = {self.send(self.get_property("to_s_unsafe", native_mtype), [nat, byte_length, unilen, value_instance(false), value_instance(false)]).as(not null)};")
1717 self.add
("{name} = {res};")
1722 fun value_instance
(object
: Object): RuntimeVariable
1724 if object
isa Int then
1725 return int_instance
(object
)
1726 else if object
isa Bool then
1727 return bool_instance
(object
)
1728 else if object
isa String then
1729 return string_instance
(object
)
1735 # Generate an array value
1736 fun array_instance
(array
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1738 # Get an instance of a array for a vararg
1739 fun vararg_instance
(mpropdef
: MPropDef, recv
: RuntimeVariable, varargs
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1743 # Add a line in the main part of the generated C
1744 fun add
(s
: String) do self.writer
.lines
.add
(s
)
1747 # (used for local or global declaration)
1748 fun add_decl
(s
: String) do self.writer
.decl_lines
.add
(s
)
1750 # Request the presence of a global declaration
1751 fun require_declaration
(key
: String)
1753 var reqs
= self.writer
.file
.required_declarations
1754 if reqs
.has
(key
) then return
1756 var node
= current_node
1757 if node
!= null then compiler
.requirers_of_declarations
[key
] = node
1760 # Add a declaration in the local-header
1761 # The declaration is ensured to be present once
1762 fun declare_once
(s
: String)
1764 self.compiler
.provide_declaration
(s
, s
)
1765 self.require_declaration
(s
)
1768 # Look for a needed .h and .c file for a given module
1769 # This is used for the legacy FFI
1770 fun add_extern
(mmodule
: MModule)
1772 var file
= mmodule
.filepath
1773 file
= file
.strip_extension
(".nit")
1774 var tryfile
= file
+ ".nit.h"
1775 if tryfile
.file_exists
then
1776 self.declare_once
("#include \"{tryfile.basename}\
"")
1777 self.compiler
.files_to_copy
.add
(tryfile
)
1779 tryfile
= file
+ "_nit.h"
1780 if tryfile
.file_exists
then
1781 self.declare_once
("#include \"{tryfile.basename}\
"")
1782 self.compiler
.files_to_copy
.add
(tryfile
)
1785 if self.compiler
.seen_extern
.has
(file
) then return
1786 self.compiler
.seen_extern
.add
(file
)
1787 tryfile
= file
+ ".nit.c"
1788 if not tryfile
.file_exists
then
1789 tryfile
= file
+ "_nit.c"
1790 if not tryfile
.file_exists
then return
1792 var f
= new ExternCFile(tryfile
.basename
, "")
1793 self.compiler
.extern_bodies
.add
(f
)
1794 self.compiler
.files_to_copy
.add
(tryfile
)
1797 # Return a new local runtime_variable initialized with the C expression `cexpr`.
1798 fun new_expr
(cexpr
: String, mtype
: MType): RuntimeVariable
1800 var res
= new_var
(mtype
)
1801 self.add
("{res} = {cexpr};")
1805 # Generate generic abort
1806 # used by aborts, asserts, casts, etc.
1807 fun add_abort
(message
: String)
1809 self.add
("if(catchStack.cursor >= 0)\{")
1810 self.add
("longjmp(catchStack.envs[catchStack.cursor], 1);")
1812 self.add
("PRINT_ERROR(\"Runtime error
: %s\
", \"{message.escape_to_c}\
");")
1818 if self.current_node
!= null and self.current_node
.location
.file
!= null and
1819 self.current_node
.location
.file
.mmodule
!= null then
1820 var f
= "FILE_{self.current_node.location.file.mmodule.c_name}"
1821 self.require_declaration
(f
)
1822 self.add
("PRINT_ERROR(\" (%s
:%d
)\\n\
", {f}, {current_node.location.line_start});")
1824 self.add
("PRINT_ERROR(\"\\n\
");")
1826 self.add
("fatal_exit(1);")
1829 # Add a dynamic cast
1830 fun add_cast
(value
: RuntimeVariable, mtype
: MType, tag
: String)
1832 var res
= self.type_test
(value
, mtype
, tag
)
1833 self.add
("if (unlikely(!{res})) \{")
1834 var cn
= self.class_name_string
(value
)
1835 self.add
("PRINT_ERROR(\"Runtime error
: Cast failed
. Expected `%s`, got
`%s`\
", \"{mtype.to_s.escape_to_c}\
", {cn});")
1840 # Generate a return with the value `s`
1841 fun ret
(s
: RuntimeVariable)
1843 self.assign
(self.frame
.returnvar
.as(not null), s
)
1844 self.add
("goto {self.frame.returnlabel.as(not null)};")
1847 # Compile a statement (if any)
1848 fun stmt
(nexpr
: nullable AExpr)
1850 if nexpr
== null then return
1851 if nexpr
.is_broken
then
1852 # Untyped expression.
1853 # Might mean dead code or invalid code
1855 add_abort
("FATAL: bad statement executed.")
1859 var narray
= nexpr
.comprehension
1860 if narray
!= null then
1861 var recv
= frame
.comprehension
.as(not null)
1862 var val
= expr
(nexpr
, narray
.element_mtype
)
1863 compile_callsite
(narray
.push_callsite
.as(not null), [recv
, val
])
1867 var old
= self.current_node
1868 self.current_node
= nexpr
1870 self.current_node
= old
1873 # Compile an expression an return its result
1874 # `mtype` is the expected return type, pass null if no specific type is expected.
1875 fun expr
(nexpr
: AExpr, mtype
: nullable MType): RuntimeVariable
1877 var old
= self.current_node
1878 self.current_node
= nexpr
1881 if nexpr
.mtype
!= null then
1882 res
= nexpr
.expr
(self)
1886 # Untyped expression.
1887 # Might mean dead code or invalid code.
1889 add_abort
("FATAL: bad expression executed.")
1890 # and return a placebo result to please the C compiler
1891 if mtype
== null then mtype
= compiler
.mainmodule
.object_type
1892 res
= new_var
(mtype
)
1894 self.current_node
= old
1898 if mtype
!= null then
1899 mtype
= self.anchor
(mtype
)
1900 res
= self.autobox
(res
, mtype
)
1902 res
= autoadapt
(res
, nexpr
.mtype
.as(not null))
1903 var implicit_cast_to
= nexpr
.implicit_cast_to
1904 if implicit_cast_to
!= null and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_autocast
.value
then
1905 add_cast
(res
, implicit_cast_to
, "auto")
1906 res
= autoadapt
(res
, implicit_cast_to
)
1908 self.current_node
= old
1912 # Alias for `self.expr(nexpr, self.bool_type)`
1913 fun expr_bool
(nexpr
: AExpr): RuntimeVariable do return expr
(nexpr
, bool_type
)
1915 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1916 fun debug
(message
: String)
1918 var node
= self.current_node
1919 if node
== null then
1920 print
"?: {message}"
1924 self.add
("/* DEBUG: {message} */")
1928 # A C function associated to a Nit method
1929 # Because of customization, a given Nit method can be compiler more that once
1930 abstract class AbstractRuntimeFunction
1932 type COMPILER: AbstractCompiler
1933 type VISITOR: AbstractCompilerVisitor
1935 # The associated Nit method
1936 var mmethoddef
: MMethodDef
1938 # The mangled c name of the runtime_function
1939 # Subclasses should redefine `build_c_name` instead
1942 var res
= self.c_name_cache
1943 if res
!= null then return res
1944 res
= self.build_c_name
1945 self.c_name_cache
= res
1949 # Non cached version of `c_name`
1950 protected fun build_c_name
: String is abstract
1952 protected var c_name_cache
: nullable String = null is writable
1954 # Implements a call of the runtime_function
1955 # May inline the body or generate a C function call
1956 fun call
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1958 # Generate the code for the `AbstractRuntimeFunction`
1959 # Warning: compile more than once compilation makes CC unhappy
1960 fun compile_to_c
(compiler
: COMPILER) is abstract
1963 # A runtime variable hold a runtime value in C.
1964 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1966 # 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.
1967 class RuntimeVariable
1968 # The name of the variable in the C code
1971 # The static type of the variable (as declard in C)
1974 # The current casted type of the variable (as known in Nit)
1975 var mcasttype
: MType is writable
1977 # If the variable exaclty a mcasttype?
1978 # false (usual value) means that the variable is a mcasttype or a subtype.
1979 var is_exact
: Bool = false is writable
1983 assert not mtype
.need_anchor
1984 assert not mcasttype
.need_anchor
1987 redef fun to_s
do return name
1992 if self.is_exact
then
1993 exact_str
= " exact"
1998 if self.mtype
== self.mcasttype
then
1999 type_str
= "{mtype}{exact_str}"
2001 type_str
= "{mtype}({mcasttype}{exact_str})"
2003 return "<{name}:{type_str}>"
2007 # The static context of a visited property in a `AbstractCompilerVisitor`
2010 type VISITOR: AbstractCompilerVisitor
2012 # The associated visitor
2013 var visitor
: VISITOR
2015 # The executed property.
2016 # A Method in case of a call, an attribute in case of a default initialization.
2017 var mpropdef
: MPropDef
2019 # The static type of the receiver
2020 var receiver
: MClassType
2022 # Arguments of the method (the first is the receiver)
2023 var arguments
: Array[RuntimeVariable]
2025 # The runtime_variable associated to the return (in a function)
2026 var returnvar
: nullable RuntimeVariable = null is writable
2028 # The label at the end of the property
2029 var returnlabel
: nullable String = null is writable
2031 # Labels associated to a each escapemarks.
2032 # Because of inlinings, escape-marks must be associated to their context (the frame)
2033 private var escapemark_names
= new HashMap[EscapeMark, String]
2035 # The array comprehension currently filled, if any
2036 private var comprehension
: nullable RuntimeVariable = null
2040 # Return the C type associated to a given Nit static type
2041 fun ctype
: String do return "val*"
2043 # C type outside of the compiler code and in boxes
2044 fun ctype_extern
: String do return "val*"
2046 # Short name of the `ctype` to use in unions
2047 fun ctypename
: String do return "val"
2049 # Is the associated C type a primitive one?
2051 # ENSURE `result == (ctype != "val*")`
2052 fun is_c_primitive
: Bool do return false
2055 redef class MClassType
2057 redef var ctype
is lazy
do
2058 if mclass
.name
== "Int" then
2060 else if mclass
.name
== "Bool" then
2062 else if mclass
.name
== "Char" then
2064 else if mclass
.name
== "Float" then
2066 else if mclass
.name
== "Int8" then
2068 else if mclass
.name
== "Byte" then
2069 return "unsigned char"
2070 else if mclass
.name
== "Int16" then
2072 else if mclass
.name
== "UInt16" then
2074 else if mclass
.name
== "Int32" then
2076 else if mclass
.name
== "UInt32" then
2078 else if mclass
.name
== "CString" then
2080 else if mclass
.name
== "NativeArray" then
2087 redef var is_c_primitive
is lazy
do return ctype
!= "val*"
2089 redef fun ctype_extern
: String
2091 if mclass
.kind
== extern_kind
then
2098 redef fun ctypename
: String
2100 if mclass
.name
== "Int" then
2102 else if mclass
.name
== "Bool" then
2104 else if mclass
.name
== "Char" then
2106 else if mclass
.name
== "Float" then
2108 else if mclass
.name
== "Int8" then
2110 else if mclass
.name
== "Byte" then
2112 else if mclass
.name
== "Int16" then
2114 else if mclass
.name
== "UInt16" then
2116 else if mclass
.name
== "Int32" then
2118 else if mclass
.name
== "UInt32" then
2120 else if mclass
.name
== "CString" then
2122 else if mclass
.name
== "NativeArray" then
2123 #return "{self.arguments.first.ctype}*"
2131 redef class MPropDef
2132 type VISITOR: AbstractCompilerVisitor
2135 redef class MMethodDef
2136 # Can the body be inlined?
2137 fun can_inline
(v
: VISITOR): Bool
2139 if is_abstract
then return true
2140 if constant_value
!= null then return true
2141 var modelbuilder
= v
.compiler
.modelbuilder
2142 var node
= modelbuilder
.mpropdef2node
(self)
2143 if node
isa APropdef then
2144 return node
.can_inline
2145 else if node
isa AClassdef then
2146 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
2148 else if node
== null then
2155 # Inline the body in another visitor
2156 fun compile_inside_to_c
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
2158 var modelbuilder
= v
.compiler
.modelbuilder
2159 var val
= constant_value
2160 var node
= modelbuilder
.mpropdef2node
(self)
2163 var cn
= v
.class_name_string
(arguments
.first
)
2164 v
.current_node
= node
2165 v
.add
("PRINT_ERROR(\"Runtime error
: Abstract method
`%s` called on
`%s`\
", \"{mproperty.name.escape_to_c}\
", {cn});")
2170 if node
isa APropdef then
2171 var oldnode
= v
.current_node
2172 v
.current_node
= node
2173 self.compile_parameter_check
(v
, arguments
)
2174 node
.compile_to_c
(v
, self, arguments
)
2175 v
.current_node
= oldnode
2176 else if node
isa AClassdef then
2177 var oldnode
= v
.current_node
2178 v
.current_node
= node
2179 self.compile_parameter_check
(v
, arguments
)
2180 node
.compile_to_c
(v
, self, arguments
)
2181 v
.current_node
= oldnode
2182 else if val
!= null then
2183 v
.ret
(v
.value_instance
(val
))
2190 # Generate type checks in the C code to check covariant parameters
2191 fun compile_parameter_check
(v
: VISITOR, arguments
: Array[RuntimeVariable])
2193 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_covariance
.value
then return
2195 var msignature
= self.msignature
.as(not null)
2197 for i
in [0..msignature
.arity
[ do
2198 var mp
= msignature
.mparameters
[i
]
2199 # skip test for vararg since the array is instantiated with the correct polymorphic type
2200 if mp
.is_vararg
then continue
2202 # skip if the cast is not required
2203 var origmtype
= self.mproperty
.intro
.msignature
.mparameters
[i
].mtype
2204 if not origmtype
.need_anchor
then continue
2206 # get the parameter type
2207 var mtype
= mp
.mtype
2210 # note that v decides if and how to implements the cast
2211 v
.add
("/* Covariant cast for argument {i} ({mp.name}) {arguments[i+1].inspect} isa {mtype} */")
2212 v
.add_cast
(arguments
[i
+1], mtype
, "covariance")
2219 redef class APropdef
2220 fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
2222 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at
{location.to_s}\\n\
");")
2223 debug
("Not yet implemented")
2226 fun can_inline
: Bool do return true
2229 redef class AMethPropdef
2230 redef fun compile_to_c
(v
, mpropdef
, arguments
)
2232 # Call the implicit super-init
2233 var auto_super_inits
= self.auto_super_inits
2234 if auto_super_inits
!= null then
2235 var args
= [arguments
.first
]
2236 for auto_super_init
in auto_super_inits
do
2237 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2239 for i
in [0..auto_super_init
.msignature
.arity
+1[ do
2240 args
.add
(arguments
[i
])
2242 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2243 v
.compile_callsite
(auto_super_init
, args
)
2246 if auto_super_call
then
2247 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
2250 # Try special compilation
2251 if mpropdef
.is_intern
then
2252 if compile_intern_to_c
(v
, mpropdef
, arguments
) then return
2254 if mpropdef
.is_extern
then
2255 if mpropdef
.mproperty
.is_init
then
2256 if compile_externinit_to_c
(v
, mpropdef
, arguments
) then return
2258 if compile_externmeth_to_c
(v
, mpropdef
, arguments
) then return
2262 # Compile block if any
2263 var n_block
= n_block
2264 if n_block
!= null then
2265 for i
in [0..mpropdef
.msignature
.arity
[ do
2266 var variable
= self.n_signature
.n_params
[i
].variable
.as(not null)
2267 v
.assign
(v
.variable
(variable
), arguments
[i
+1])
2274 var cn
= v
.class_name_string
(arguments
.first
)
2275 v
.add
("PRINT_ERROR(\"Runtime error
: uncompiled method
`%s` called on
`%s`. NOT YET IMPLEMENTED\
", \"{mpropdef.mproperty.name.escape_to_c}\
", {cn});")
2279 redef fun can_inline
2281 if self.auto_super_inits
!= null then return false
2282 var nblock
= self.n_block
2283 if nblock
== null then return true
2284 if (mpropdef
.mproperty
.name
== "==" or mpropdef
.mproperty
.name
== "!=") and mpropdef
.mclassdef
.mclass
.name
== "Object" then return true
2285 if nblock
isa ABlockExpr and nblock
.n_expr
.length
== 0 then return true
2289 fun compile_intern_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
2291 var pname
= mpropdef
.mproperty
.name
2292 var cname
= mpropdef
.mclassdef
.mclass
.name
2293 var ret
= mpropdef
.msignature
.return_mtype
2295 ret
= v
.resolve_for
(ret
, arguments
.first
)
2297 if pname
!= "==" and pname
!= "!=" then
2298 v
.adapt_signature
(mpropdef
, arguments
)
2299 v
.unbox_signature_extern
(mpropdef
, arguments
)
2301 if cname
== "Int" then
2302 if pname
== "output" then
2303 v
.add
("printf(\"%ld\\n\
", {arguments.first});")
2305 else if pname
== "object_id" then
2306 v
.ret
(arguments
.first
)
2308 else if pname
== "+" then
2309 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2311 else if pname
== "-" then
2312 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2314 else if pname
== "unary -" then
2315 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2317 else if pname
== "unary +" then
2320 else if pname
== "*" then
2321 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2323 else if pname
== "/" then
2324 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2326 else if pname
== "%" then
2327 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2329 else if pname
== "==" then
2330 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2332 else if pname
== "!=" then
2333 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2334 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2336 else if pname
== "<" then
2337 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2339 else if pname
== ">" then
2340 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2342 else if pname
== "<=" then
2343 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2345 else if pname
== ">=" then
2346 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2348 else if pname
== "to_i8" then
2349 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2351 else if pname
== "to_i16" then
2352 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2354 else if pname
== "to_u16" then
2355 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2357 else if pname
== "to_i32" then
2358 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2360 else if pname
== "to_u32" then
2361 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2363 else if pname
== "to_f" then
2364 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2366 else if pname
== "to_b" then
2367 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2369 else if pname
== "code_point" then
2370 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2372 else if pname
== "&" then
2373 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2375 else if pname
== "|" then
2376 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2378 else if pname
== ">>" then
2379 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2381 else if pname
== "<<" then
2382 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2385 else if cname
== "Char" then
2386 if pname
== "object_id" then
2387 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2389 else if pname
== "successor" then
2390 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2392 else if pname
== "predecessor" then
2393 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2395 else if pname
== "==" then
2396 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2398 else if pname
== "!=" then
2399 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2400 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2402 else if pname
== "<" then
2403 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2405 else if pname
== ">" then
2406 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2408 else if pname
== "<=" then
2409 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2411 else if pname
== ">=" then
2412 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2414 else if pname
== "to_i" then
2415 v
.ret
(v
.new_expr
("{arguments[0]}-'0'", ret
.as(not null)))
2417 else if pname
== "code_point" then
2418 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2421 else if cname
== "Byte" then
2422 if pname
== "output" then
2423 v
.add
("printf(\"%x\\n\
", {arguments.first});")
2425 else if pname
== "object_id" then
2426 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2428 else if pname
== "+" then
2429 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2431 else if pname
== "-" then
2432 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2434 else if pname
== "unary -" then
2435 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2437 else if pname
== "unary +" then
2440 else if pname
== "*" then
2441 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2443 else if pname
== "/" then
2444 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2446 else if pname
== "%" then
2447 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2449 else if pname
== "==" then
2450 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2452 else if pname
== "!=" then
2453 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2454 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2456 else if pname
== "<" then
2457 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2459 else if pname
== ">" then
2460 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2462 else if pname
== "<=" then
2463 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2465 else if pname
== ">=" then
2466 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2468 else if pname
== ">>" then
2469 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2471 else if pname
== "<<" then
2472 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2474 else if pname
== "&" then
2475 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2477 else if pname
== "to_i" then
2478 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2480 else if pname
== "to_f" then
2481 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2483 else if pname
== "to_i8" then
2484 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2486 else if pname
== "to_i16" then
2487 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2489 else if pname
== "to_u16" then
2490 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2492 else if pname
== "to_i32" then
2493 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2495 else if pname
== "to_u32" then
2496 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2498 else if pname
== "ascii" then
2499 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2502 else if cname
== "Bool" then
2503 if pname
== "output" then
2504 v
.add
("printf({arguments.first}?\"true\\n\
":\"false\\n\
");")
2506 else if pname
== "object_id" then
2507 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2509 else if pname
== "==" then
2510 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2512 else if pname
== "!=" then
2513 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2514 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2517 else if cname
== "Float" then
2518 if pname
== "output" then
2519 v
.add
("printf(\"%f\\n\
", {arguments.first});")
2521 else if pname
== "object_id" then
2522 v
.ret
(v
.new_expr
("(double){arguments.first}", ret
.as(not null)))
2524 else if pname
== "+" then
2525 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2527 else if pname
== "-" then
2528 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2530 else if pname
== "unary -" then
2531 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2533 else if pname
== "unary +" then
2536 else if pname
== "succ" then
2537 v
.ret
(v
.new_expr
("{arguments[0]}+1", ret
.as(not null)))
2539 else if pname
== "prec" then
2540 v
.ret
(v
.new_expr
("{arguments[0]}-1", ret
.as(not null)))
2542 else if pname
== "*" then
2543 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2545 else if pname
== "/" then
2546 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2548 else if pname
== "==" then
2549 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2551 else if pname
== "!=" then
2552 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2553 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2555 else if pname
== "<" then
2556 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2558 else if pname
== ">" then
2559 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2561 else if pname
== "<=" then
2562 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2564 else if pname
== ">=" then
2565 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2567 else if pname
== "to_i" then
2568 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2570 else if pname
== "to_b" then
2571 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2573 else if pname
== "to_i8" then
2574 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2576 else if pname
== "to_i16" then
2577 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2579 else if pname
== "to_u16" then
2580 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2582 else if pname
== "to_i32" then
2583 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2585 else if pname
== "to_u32" then
2586 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2589 else if cname
== "CString" then
2590 if pname
== "[]" then
2591 v
.ret
(v
.new_expr
("(unsigned char)((int){arguments[0]}[{arguments[1]}])", ret
.as(not null)))
2593 else if pname
== "[]=" then
2594 v
.add
("{arguments[0]}[{arguments[1]}]=(unsigned char){arguments[2]};")
2596 else if pname
== "copy_to" then
2597 v
.add
("memmove({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
2599 else if pname
== "atoi" then
2600 v
.ret
(v
.new_expr
("atoi({arguments[0]});", ret
.as(not null)))
2602 else if pname
== "fast_cstring" then
2603 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2605 else if pname
== "==" then
2606 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2608 else if pname
== "!=" then
2609 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2610 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2612 else if pname
== "new" then
2613 var alloc
= v
.nit_alloc
(arguments
[1].to_s
, "CString")
2614 v
.ret
(v
.new_expr
("(char*){alloc}", ret
.as(not null)))
2616 else if pname
== "fetch_4_chars" then
2617 v
.ret
(v
.new_expr
("(long)*((uint32_t*)({arguments[0]} + {arguments[1]}))", ret
.as(not null)))
2619 else if pname
== "fetch_4_hchars" then
2620 v
.ret
(v
.new_expr
("(long)be32toh(*((uint32_t*)({arguments[0]} + {arguments[1]})))", ret
.as(not null)))
2623 else if cname
== "NativeArray" then
2624 return v
.native_array_def
(pname
, ret
, arguments
)
2625 else if cname
== "Int8" then
2626 if pname
== "output" then
2627 v
.add
("printf(\"%\
"PRIi8 \"\\n\
", {arguments.first});")
2629 else if pname
== "object_id" then
2630 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2632 else if pname
== "+" then
2633 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2635 else if pname
== "-" then
2636 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2638 else if pname
== "unary -" then
2639 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2641 else if pname
== "unary +" then
2644 else if pname
== "*" then
2645 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2647 else if pname
== "/" then
2648 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2650 else if pname
== "%" then
2651 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2653 else if pname
== "<<" then
2654 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2656 else if pname
== ">>" then
2657 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2659 else if pname
== "==" then
2660 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2662 else if pname
== "!=" then
2663 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2664 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2666 else if pname
== "<" then
2667 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2669 else if pname
== ">" then
2670 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2672 else if pname
== "<=" then
2673 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2675 else if pname
== ">=" then
2676 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2678 else if pname
== "to_i" then
2679 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2681 else if pname
== "to_b" then
2682 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2684 else if pname
== "to_i16" then
2685 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2687 else if pname
== "to_u16" then
2688 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2690 else if pname
== "to_i32" then
2691 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2693 else if pname
== "to_u32" then
2694 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2696 else if pname
== "to_f" then
2697 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2699 else if pname
== "&" then
2700 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2702 else if pname
== "|" then
2703 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2705 else if pname
== "^" then
2706 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2708 else if pname
== "unary ~" then
2709 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2712 else if cname
== "Int16" then
2713 if pname
== "output" then
2714 v
.add
("printf(\"%\
"PRIi16 \"\\n\
", {arguments.first});")
2716 else if pname
== "object_id" then
2717 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2719 else if pname
== "+" then
2720 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2722 else if pname
== "-" then
2723 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2725 else if pname
== "unary -" then
2726 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2728 else if pname
== "unary +" then
2731 else if pname
== "*" then
2732 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2734 else if pname
== "/" then
2735 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2737 else if pname
== "%" then
2738 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2740 else if pname
== "<<" then
2741 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2743 else if pname
== ">>" then
2744 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2746 else if pname
== "==" then
2747 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2749 else if pname
== "!=" then
2750 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2751 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2753 else if pname
== "<" then
2754 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2756 else if pname
== ">" then
2757 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2759 else if pname
== "<=" then
2760 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2762 else if pname
== ">=" then
2763 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2765 else if pname
== "to_i" then
2766 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2768 else if pname
== "to_b" then
2769 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2771 else if pname
== "to_i8" then
2772 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2774 else if pname
== "to_u16" then
2775 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2777 else if pname
== "to_i32" then
2778 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2780 else if pname
== "to_u32" then
2781 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2783 else if pname
== "to_f" then
2784 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2786 else if pname
== "&" then
2787 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2789 else if pname
== "|" then
2790 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2792 else if pname
== "^" then
2793 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2795 else if pname
== "unary ~" then
2796 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2799 else if cname
== "UInt16" then
2800 if pname
== "output" then
2801 v
.add
("printf(\"%\
"PRIu16 \"\\n\
", {arguments.first});")
2803 else if pname
== "object_id" then
2804 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2806 else if pname
== "+" then
2807 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2809 else if pname
== "-" then
2810 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2812 else if pname
== "unary -" then
2813 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2815 else if pname
== "unary +" then
2818 else if pname
== "*" then
2819 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2821 else if pname
== "/" then
2822 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2824 else if pname
== "%" then
2825 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2827 else if pname
== "<<" then
2828 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2830 else if pname
== ">>" then
2831 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2833 else if pname
== "==" then
2834 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2836 else if pname
== "!=" then
2837 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2838 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2840 else if pname
== "<" then
2841 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2843 else if pname
== ">" then
2844 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2846 else if pname
== "<=" then
2847 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2849 else if pname
== ">=" then
2850 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2852 else if pname
== "to_i" then
2853 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2855 else if pname
== "to_b" then
2856 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2858 else if pname
== "to_i8" then
2859 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2861 else if pname
== "to_i16" then
2862 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2864 else if pname
== "to_i32" then
2865 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2867 else if pname
== "to_u32" then
2868 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2870 else if pname
== "to_f" then
2871 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2873 else if pname
== "&" then
2874 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2876 else if pname
== "|" then
2877 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2879 else if pname
== "^" then
2880 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2882 else if pname
== "unary ~" then
2883 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2886 else if cname
== "Int32" then
2887 if pname
== "output" then
2888 v
.add
("printf(\"%\
"PRIi32 \"\\n\
", {arguments.first});")
2890 else if pname
== "object_id" then
2891 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2893 else if pname
== "+" then
2894 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2896 else if pname
== "-" then
2897 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2899 else if pname
== "unary -" then
2900 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2902 else if pname
== "unary +" then
2905 else if pname
== "*" then
2906 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2908 else if pname
== "/" then
2909 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2911 else if pname
== "%" then
2912 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2914 else if pname
== "<<" then
2915 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2917 else if pname
== ">>" then
2918 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2920 else if pname
== "==" then
2921 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2923 else if pname
== "!=" then
2924 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2925 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2927 else if pname
== "<" then
2928 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2930 else if pname
== ">" then
2931 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2933 else if pname
== "<=" then
2934 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2936 else if pname
== ">=" then
2937 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2939 else if pname
== "to_i" then
2940 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2942 else if pname
== "to_b" then
2943 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2945 else if pname
== "to_i8" then
2946 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2948 else if pname
== "to_i16" then
2949 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2951 else if pname
== "to_u16" then
2952 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2954 else if pname
== "to_u32" then
2955 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2957 else if pname
== "to_f" then
2958 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2960 else if pname
== "&" then
2961 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2963 else if pname
== "|" then
2964 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2966 else if pname
== "^" then
2967 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2969 else if pname
== "unary ~" then
2970 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2973 else if cname
== "UInt32" then
2974 if pname
== "output" then
2975 v
.add
("printf(\"%\
"PRIu32 \"\\n\
", {arguments.first});")
2977 else if pname
== "object_id" then
2978 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2980 else if pname
== "+" then
2981 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2983 else if pname
== "-" then
2984 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2986 else if pname
== "unary -" then
2987 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2989 else if pname
== "unary +" then
2992 else if pname
== "*" then
2993 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2995 else if pname
== "/" then
2996 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2998 else if pname
== "%" then
2999 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
3001 else if pname
== "<<" then
3002 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
3004 else if pname
== ">>" then
3005 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
3007 else if pname
== "==" then
3008 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
3010 else if pname
== "!=" then
3011 var res
= v
.equal_test
(arguments
[0], arguments
[1])
3012 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
3014 else if pname
== "<" then
3015 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
3017 else if pname
== ">" then
3018 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
3020 else if pname
== "<=" then
3021 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
3023 else if pname
== ">=" then
3024 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
3026 else if pname
== "to_i" then
3027 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
3029 else if pname
== "to_b" then
3030 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
3032 else if pname
== "to_i8" then
3033 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
3035 else if pname
== "to_i16" then
3036 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
3038 else if pname
== "to_u16" then
3039 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
3041 else if pname
== "to_i32" then
3042 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
3044 else if pname
== "to_f" then
3045 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
3047 else if pname
== "&" then
3048 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
3050 else if pname
== "|" then
3051 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
3053 else if pname
== "^" then
3054 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
3056 else if pname
== "unary ~" then
3057 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
3061 if pname
== "exit" then
3062 v
.add
("exit({arguments[1]});")
3064 else if pname
== "sys" then
3065 v
.ret
(v
.new_expr
("glob_sys", ret
.as(not null)))
3067 else if pname
== "object_id" then
3068 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
3070 else if pname
== "is_same_type" then
3071 v
.ret
(v
.is_same_type_test
(arguments
[0], arguments
[1]))
3073 else if pname
== "is_same_instance" then
3074 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
3076 else if pname
== "output_class_name" then
3077 var nat
= v
.class_name_string
(arguments
.first
)
3078 v
.add
("printf(\"%s\\n\
", {nat});")
3080 else if pname
== "native_class_name" then
3081 var nat
= v
.class_name_string
(arguments
.first
)
3082 v
.ret
(v
.new_expr
("(char*){nat}", ret
.as(not null)))
3084 else if pname
== "force_garbage_collection" then
3085 v
.add
("nit_gcollect();")
3087 else if pname
== "native_argc" then
3088 v
.ret
(v
.new_expr
("glob_argc", ret
.as(not null)))
3090 else if pname
== "native_argv" then
3091 v
.ret
(v
.new_expr
("glob_argv[{arguments[1]}]", ret
.as(not null)))
3097 # Compile an extern method
3098 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3099 fun compile_externmeth_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3102 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3103 if at
!= null and at
.n_args
.length
== 1 then
3104 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3105 if externname
== null then return false
3109 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3110 var res
: nullable RuntimeVariable = null
3111 var ret
= mpropdef
.msignature
.return_mtype
3113 ret
= v
.resolve_for
(ret
, arguments
.first
)
3114 res
= v
.new_var_extern
(ret
)
3116 v
.adapt_signature
(mpropdef
, arguments
)
3117 v
.unbox_signature_extern
(mpropdef
, arguments
)
3120 v
.add
("{externname}({arguments.join(", ")});")
3122 v
.add
("{res} = {externname}({arguments.join(", ")});")
3123 res
= v
.box_extern
(res
, ret
.as(not null))
3129 # Compile an extern factory
3130 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3131 fun compile_externinit_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3134 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3136 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3137 if externname
== null then return false
3141 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3142 v
.adapt_signature
(mpropdef
, arguments
)
3143 v
.unbox_signature_extern
(mpropdef
, arguments
)
3144 var ret
= arguments
.first
.mtype
3145 var res
= v
.new_var_extern
(ret
)
3149 v
.add
("{res} = {externname}({arguments.join(", ")});")
3150 res
= v
.box_extern
(res
, ret
)
3156 redef class AAttrPropdef
3157 redef fun can_inline
: Bool do return not is_lazy
3159 redef fun compile_to_c
(v
, mpropdef
, arguments
)
3161 if mpropdef
== mreadpropdef
then
3162 assert arguments
.length
== 1
3163 var recv
= arguments
.first
3167 var ret
= self.mtype
3168 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3169 var guard
= self.mlazypropdef
.mproperty
3171 set
= v
.isset_attribute
(self.mpropdef
.mproperty
, recv
)
3173 set
= v
.read_attribute
(guard
, recv
)
3175 v
.add
("if(likely({set})) \{")
3176 res
= v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3179 var value
= evaluate_expr
(v
, recv
)
3181 v
.assign
(res
, value
)
3183 var true_v
= v
.bool_instance
(true)
3184 v
.write_attribute
(guard
, arguments
.first
, true_v
)
3188 res
= v
.read_attribute
(self.mpropdef
.mproperty
, arguments
.first
)
3190 v
.assign
(v
.frame
.returnvar
.as(not null), res
)
3191 else if mpropdef
== mwritepropdef
then
3192 assert arguments
.length
== 2
3193 var recv
= arguments
.first
3194 var arg
= arguments
[1]
3195 if is_optional
and v
.maybenull
(arg
) then
3196 var value
= v
.new_var
(self.mpropdef
.static_mtype
.as(not null))
3197 v
.add
("if ({arg} == NULL) \{")
3198 v
.assign
(value
, evaluate_expr
(v
, recv
))
3200 v
.assign
(value
, arg
)
3204 v
.write_attribute
(self.mpropdef
.mproperty
, arguments
.first
, arg
)
3206 var ret
= self.mtype
3207 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3209 v
.write_attribute
(self.mlazypropdef
.mproperty
, arguments
.first
, v
.bool_instance
(true))
3217 fun init_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3219 if has_value
and not is_lazy
and not is_optional
and not n_expr
isa ANullExpr then evaluate_expr
(v
, recv
)
3222 # Evaluate, store and return the default value of the attribute
3223 private fun evaluate_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable): RuntimeVariable
3225 var oldnode
= v
.current_node
3226 v
.current_node
= self
3227 var old_frame
= v
.frame
3228 var frame
= new StaticFrame(v
, self.mreadpropdef
.as(not null), recv
.mcasttype
.undecorate
.as(MClassType), [recv
])
3232 var mtype
= self.mtype
3233 assert mtype
!= null
3235 var nexpr
= self.n_expr
3236 var nblock
= self.n_block
3237 if nexpr
!= null then
3238 value
= v
.expr
(nexpr
, mtype
)
3239 else if nblock
!= null then
3240 value
= v
.new_var
(mtype
)
3241 frame
.returnvar
= value
3242 frame
.returnlabel
= v
.get_name
("RET_LABEL")
3245 v
.add
("{frame.returnlabel.as(not null)}:(void)0;")
3251 v
.write_attribute
(self.mpropdef
.mproperty
, recv
, value
)
3254 v
.current_node
= oldnode
3259 fun check_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3261 var nexpr
= self.n_expr
3262 if nexpr
!= null then return
3264 var oldnode
= v
.current_node
3265 v
.current_node
= self
3266 var old_frame
= v
.frame
3267 var frame
= new StaticFrame(v
, self.mpropdef
.as(not null), recv
.mtype
.as(MClassType), [recv
])
3269 # Force read to check the initialization
3270 v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3272 v
.current_node
= oldnode
3276 redef class AClassdef
3277 private fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
3279 if mpropdef
.mproperty
.is_root_init
then
3280 assert arguments
.length
== 1
3281 if not mpropdef
.is_intro
then
3282 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
3292 # Try to compile self as an expression
3293 # Do not call this method directly, use `v.expr` instead
3294 private fun expr
(v
: AbstractCompilerVisitor): nullable RuntimeVariable
3296 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\
");")
3297 var mtype
= self.mtype
3298 if mtype
== null then
3301 var res
= v
.new_var
(mtype
)
3302 v
.add
("/* {res} = NOT YET {class_name} */")
3307 # Try to compile self as a statement
3308 # Do not call this method directly, use `v.stmt` instead
3309 private fun stmt
(v
: AbstractCompilerVisitor)
3315 redef class ABlockExpr
3318 for e
in self.n_expr
do v
.stmt
(e
)
3322 var last
= self.n_expr
.last
3323 for e
in self.n_expr
do
3324 if e
== last
then break
3327 return v
.expr
(last
, null)
3331 redef class AVardeclExpr
3334 var variable
= self.variable
.as(not null)
3335 var ne
= self.n_expr
3337 var i
= v
.expr
(ne
, variable
.declared_type
)
3338 v
.assign
(v
.variable
(variable
), i
)
3343 redef class AVarExpr
3346 var res
= v
.variable
(self.variable
.as(not null))
3347 var mtype
= self.mtype
.as(not null)
3348 return v
.autoadapt
(res
, mtype
)
3352 redef class AVarAssignExpr
3355 var variable
= self.variable
.as(not null)
3356 var i
= v
.expr
(self.n_value
, variable
.declared_type
)
3357 v
.assign
(v
.variable
(variable
), i
)
3362 redef class AVarReassignExpr
3365 var variable
= self.variable
.as(not null)
3366 var vari
= v
.variable
(variable
)
3367 var value
= v
.expr
(self.n_value
, variable
.declared_type
)
3368 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [vari
, value
])
3370 v
.assign
(v
.variable
(variable
), res
)
3374 redef class ASelfExpr
3375 redef fun expr
(v
) do return v
.frame
.arguments
.first
3378 redef class AImplicitSelfExpr
3379 redef fun expr
(v
) do
3380 if not is_sys
then return super
3381 return v
.new_expr
("glob_sys", mtype
.as(not null))
3385 redef class AEscapeExpr
3386 redef fun stmt
(v
) do v
.add
("goto BREAK_{v.escapemark_name(self.escapemark)};")
3389 redef class AReturnExpr
3392 var nexpr
= self.n_expr
3393 if nexpr
!= null then
3394 var returnvar
= v
.frame
.returnvar
.as(not null)
3395 var i
= v
.expr
(nexpr
, returnvar
.mtype
)
3396 v
.assign
(returnvar
, i
)
3398 v
.add
("goto {v.frame.returnlabel.as(not null)};")
3402 redef class AAbortExpr
3403 redef fun stmt
(v
) do v
.add_abort
("Aborted")
3409 var cond
= v
.expr_bool
(self.n_expr
)
3410 v
.add
("if ({cond})\{")
3419 var res
= v
.new_var
(self.mtype
.as(not null))
3420 var cond
= v
.expr_bool
(self.n_expr
)
3421 v
.add
("if ({cond})\{")
3422 v
.assign
(res
, v
.expr
(self.n_then
.as(not null), null))
3424 v
.assign
(res
, v
.expr
(self.n_else
.as(not null), null))
3430 redef class AIfexprExpr
3433 var res
= v
.new_var
(self.mtype
.as(not null))
3434 var cond
= v
.expr_bool
(self.n_expr
)
3435 v
.add
("if ({cond})\{")
3436 v
.assign
(res
, v
.expr
(self.n_then
, null))
3438 v
.assign
(res
, v
.expr
(self.n_else
, null))
3447 if self.n_catch
!= null then
3448 v
.add
("catchStack.cursor += 1;")
3449 v
.add
("if(!setjmp(catchStack.envs[catchStack.cursor]))\{")
3450 v
.stmt
(self.n_block
)
3451 v
.add
("catchStack.cursor -= 1;")
3453 v
.add
("catchStack.cursor -= 1;")
3454 v
.stmt
(self.n_catch
)
3457 v
.stmt
(self.n_block
)
3459 v
.add_escape_label
(break_mark
)
3463 redef class AWhileExpr
3467 var cond
= v
.expr_bool
(self.n_expr
)
3468 v
.add
("if (!{cond}) break;")
3469 v
.stmt
(self.n_block
)
3470 v
.add_escape_label
(continue_mark
)
3472 v
.add_escape_label
(break_mark
)
3476 redef class ALoopExpr
3480 v
.stmt
(self.n_block
)
3481 v
.add_escape_label
(continue_mark
)
3483 v
.add_escape_label
(break_mark
)
3487 redef class AForExpr
3490 for g
in n_groups
do
3491 var cl
= v
.expr
(g
.n_expr
, null)
3492 var it_meth
= g
.method_iterator
3493 assert it_meth
!= null
3494 var it
= v
.compile_callsite
(it_meth
, [cl
])
3499 for g
in n_groups
do
3501 var isok_meth
= g
.method_is_ok
3502 assert isok_meth
!= null
3503 var ok
= v
.compile_callsite
(isok_meth
, [it
])
3505 v
.add
("if(!{ok}) break;")
3506 if g
.variables
.length
== 1 then
3507 var item_meth
= g
.method_item
3508 assert item_meth
!= null
3509 var i
= v
.compile_callsite
(item_meth
, [it
])
3511 v
.assign
(v
.variable
(g
.variables
.first
), i
)
3512 else if g
.variables
.length
== 2 then
3513 var key_meth
= g
.method_key
3514 assert key_meth
!= null
3515 var i
= v
.compile_callsite
(key_meth
, [it
])
3517 v
.assign
(v
.variable
(g
.variables
[0]), i
)
3518 var item_meth
= g
.method_item
3519 assert item_meth
!= null
3520 i
= v
.compile_callsite
(item_meth
, [it
])
3522 v
.assign
(v
.variable
(g
.variables
[1]), i
)
3527 v
.stmt
(self.n_block
)
3528 v
.add_escape_label
(continue_mark
)
3529 for g
in n_groups
do
3530 var next_meth
= g
.method_next
3531 assert next_meth
!= null
3532 v
.compile_callsite
(next_meth
, [g
.it
])
3535 v
.add_escape_label
(break_mark
)
3537 for g
in n_groups
do
3538 var method_finish
= g
.method_finish
3539 if method_finish
!= null then
3540 # TODO: Find a way to call this also in long escape (e.g. return)
3541 v
.compile_callsite
(method_finish
, [g
.it
])
3547 redef class AForGroup
3548 # C variable representing the iterator
3549 private var it
: RuntimeVariable is noinit
3552 redef class AAssertExpr
3555 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return
3557 var cond
= v
.expr_bool
(self.n_expr
)
3558 v
.add
("if (unlikely(!{cond})) \{")
3562 v
.add_abort
("Assert '{nid.text}' failed")
3564 v
.add_abort
("Assert failed")
3573 var res
= v
.new_var
(self.mtype
.as(not null))
3574 var i1
= v
.expr_bool
(self.n_expr
)
3575 v
.add
("if ({i1}) \{")
3578 var i2
= v
.expr_bool
(self.n_expr2
)
3579 v
.add
("{res} = {i2};")
3585 redef class AImpliesExpr
3588 var res
= v
.new_var
(self.mtype
.as(not null))
3589 var i1
= v
.expr_bool
(self.n_expr
)
3590 v
.add
("if (!{i1}) \{")
3593 var i2
= v
.expr_bool
(self.n_expr2
)
3594 v
.add
("{res} = {i2};")
3600 redef class AAndExpr
3603 var res
= v
.new_var
(self.mtype
.as(not null))
3604 var i1
= v
.expr_bool
(self.n_expr
)
3605 v
.add
("if (!{i1}) \{")
3608 var i2
= v
.expr_bool
(self.n_expr2
)
3609 v
.add
("{res} = {i2};")
3615 redef class ANotExpr
3618 var cond
= v
.expr_bool
(self.n_expr
)
3619 return v
.new_expr
("!{cond}", self.mtype
.as(not null))
3623 redef class AOrElseExpr
3626 var res
= v
.new_var
(self.mtype
.as(not null))
3627 var i1
= v
.expr
(self.n_expr
, null)
3629 if not v
.maybenull
(i1
) then return i1
3631 v
.add
("if ({i1}!=NULL) \{")
3634 var i2
= v
.expr
(self.n_expr2
, null)
3641 redef class AIntegerExpr
3642 redef fun expr
(v
) do
3643 if value
isa Int then return v
.int_instance
(value
.as(Int))
3644 if value
isa Byte then return v
.byte_instance
(value
.as(Byte))
3645 if value
isa Int8 then return v
.int8_instance
(value
.as(Int8))
3646 if value
isa Int16 then return v
.int16_instance
(value
.as(Int16))
3647 if value
isa UInt16 then return v
.uint16_instance
(value
.as(UInt16))
3648 if value
isa Int32 then return v
.int32_instance
(value
.as(Int32))
3649 if value
isa UInt32 then return v
.uint32_instance
(value
.as(UInt32))
3650 # Should never happen
3655 redef class AFloatExpr
3656 redef fun expr
(v
) do return v
.float_instance
("{self.n_float.text}") # FIXME use value, not n_float
3659 redef class ACharExpr
3660 redef fun expr
(v
) do
3661 if is_ascii
then return v
.byte_instance
(value
.as(not null).ascii
)
3662 if is_code_point
then return v
.int_instance
(value
.as(not null).code_point
)
3663 return v
.char_instance
(self.value
.as(not null))
3667 redef class AArrayExpr
3670 var mtype
= self.element_mtype
.as(not null)
3671 var array
= new Array[RuntimeVariable]
3672 var res
= v
.array_instance
(array
, mtype
)
3674 var old_comprehension
= v
.frame
.comprehension
3675 v
.frame
.comprehension
= res
3676 for nexpr
in self.n_exprs
do
3679 v
.frame
.comprehension
= old_comprehension
3685 redef class AugmentedStringFormExpr
3686 # Factorize the making of a `Regex` object from a literal prefixed string
3687 protected fun make_re
(v
: AbstractCompilerVisitor, rs
: RuntimeVariable): nullable RuntimeVariable do
3690 var res
= v
.compile_callsite
(re
, [rs
])
3692 print
"Cannot call property `to_re` on {self}"
3695 for i
in suffix
.chars
do
3697 var ign
= ignore_case
3699 v
.compile_callsite
(ign
, [res
, v
.bool_instance
(true)])
3705 v
.compile_callsite
(nl
, [res
, v
.bool_instance
(true)])
3711 v
.compile_callsite
(ext
, [res
, v
.bool_instance
(false)])
3714 # Should not happen, this needs to be updated
3715 # along with the addition of new suffixes
3722 redef class AStringFormExpr
3723 redef fun expr
(v
) do return v
.string_instance
(value
)
3726 redef class AStringExpr
3727 redef fun expr
(v
) do
3728 var s
= v
.string_instance
(value
)
3729 if is_string
then return s
3730 if is_bytestring
then
3731 var ns
= v
.c_string_instance
(bytes
.items
, bytes
.length
)
3732 var ln
= v
.int_instance
(bytes
.length
)
3733 var cs
= to_bytes_with_copy
3735 var res
= v
.compile_callsite
(cs
, [ns
, ln
])
3739 var res
= make_re
(v
, s
)
3743 print
"Unimplemented prefix or suffix for {self}"
3750 redef class ASuperstringExpr
3753 var type_string
= v
.mmodule
.string_type
3755 # Collect elements of the superstring
3756 var array
= new Array[AExpr]
3757 for ne
in self.n_exprs
do
3758 # Drop literal empty string.
3759 # They appears in things like "{a}" that is ["", a, ""]
3760 if ne
isa AStringFormExpr and ne
.value
== "" then continue # skip empty sub-strings
3764 # Store the allocated native array in a static variable
3766 var varonce
= v
.get_name
("varonce")
3767 v
.add
("if (unlikely({varonce}==NULL)) \{")
3769 # The native array that will contains the elements to_s-ized.
3770 # For fast concatenation.
3771 var a
= v
.native_array_instance
(type_string
, v
.int_instance
(array
.length
))
3773 v
.add_decl
("static {a.mtype.ctype} {varonce};")
3775 # Pre-fill the array with the literal string parts.
3776 # So they do not need to be filled again when reused
3777 for i
in [0..array
.length
[ do
3779 if not ne
isa AStringFormExpr then continue
3780 var e
= v
.expr
(ne
, null)
3781 v
.native_array_set
(a
, i
, e
)
3785 # Take the native-array from the store.
3786 # The point is to prevent that some recursive execution use (and corrupt) the same native array
3787 # WARNING: not thread safe! (FIXME?)
3788 v
.add
("{a} = {varonce};")
3789 v
.add
("{varonce} = NULL;")
3792 # Stringify the elements and put them in the native array
3793 var to_s_method
= v
.get_property
("to_s", v
.object_type
)
3794 for i
in [0..array
.length
[ do
3796 if ne
isa AStringFormExpr then continue
3797 var e
= v
.expr
(ne
, null)
3798 # Skip the `to_s` if the element is already a String
3799 if not e
.mcasttype
.is_subtype
(v
.compiler
.mainmodule
, null, type_string
) then
3800 e
= v
.send
(to_s_method
, [e
]).as(not null)
3802 v
.native_array_set
(a
, i
, e
)
3805 # Fast join the C string to get the result
3806 var res
= v
.send
(v
.get_property
("native_to_s", a
.mtype
), [a
])
3809 if is_re
then res
= make_re
(v
, res
)
3811 # We finish to work with the native array,
3812 # so store it so that it can be reused
3813 v
.add
("{varonce} = {a};")
3819 redef class ACrangeExpr
3822 var i1
= v
.expr
(self.n_expr
, null)
3823 var i2
= v
.expr
(self.n_expr2
, null)
3824 var mtype
= self.mtype
.as(MClassType)
3825 var res
= v
.init_instance
(mtype
)
3826 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3831 redef class AOrangeExpr
3834 var i1
= v
.expr
(self.n_expr
, null)
3835 var i2
= v
.expr
(self.n_expr2
, null)
3836 var mtype
= self.mtype
.as(MClassType)
3837 var res
= v
.init_instance
(mtype
)
3838 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3843 redef class ATrueExpr
3844 redef fun expr
(v
) do return v
.bool_instance
(true)
3847 redef class AFalseExpr
3848 redef fun expr
(v
) do return v
.bool_instance
(false)
3851 redef class ANullExpr
3852 redef fun expr
(v
) do return v
.null_instance
3855 redef class AIsaExpr
3858 var i
= v
.expr
(self.n_expr
, null)
3859 var cast_type
= self.cast_type
3860 if cast_type
== null then return null # no-no on broken node
3861 return v
.type_test
(i
, cast_type
, "isa")
3865 redef class AAsCastExpr
3868 var i
= v
.expr
(self.n_expr
, null)
3869 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3871 v
.add_cast
(i
, self.mtype
.as(not null), "as")
3876 redef class AAsNotnullExpr
3879 var i
= v
.expr
(self.n_expr
, null)
3880 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3882 if not v
.maybenull
(i
) then return i
3884 v
.add
("if (unlikely({i} == NULL)) \{")
3885 v
.add_abort
("Cast failed")
3891 redef class AParExpr
3892 redef fun expr
(v
) do return v
.expr
(self.n_expr
, null)
3895 redef class AOnceExpr
3898 var mtype
= self.mtype
.as(not null)
3899 var name
= v
.get_name
("varonce")
3900 var guard
= v
.get_name
(name
+ "_guard")
3901 v
.add_decl
("static {mtype.ctype} {name};")
3902 v
.add_decl
("static int {guard};")
3903 var res
= v
.new_var
(mtype
)
3904 v
.add
("if (likely({guard})) \{")
3905 v
.add
("{res} = {name};")
3907 var i
= v
.expr
(self.n_expr
, mtype
)
3908 v
.add
("{res} = {i};")
3909 v
.add
("{name} = {res};")
3910 v
.add
("{guard} = 1;")
3916 redef class ASendExpr
3919 var recv
= v
.expr
(self.n_expr
, null)
3920 var callsite
= self.callsite
.as(not null)
3921 if callsite
.is_broken
then return null
3922 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3923 return v
.compile_callsite
(callsite
, args
)
3927 redef class ASendReassignFormExpr
3930 var recv
= v
.expr
(self.n_expr
, null)
3931 var callsite
= self.callsite
.as(not null)
3932 if callsite
.is_broken
then return
3933 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3935 var value
= v
.expr
(self.n_value
, null)
3937 var left
= v
.compile_callsite
(callsite
, args
)
3940 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [left
, value
])
3944 v
.compile_callsite
(self.write_callsite
.as(not null), args
)
3948 redef class ASuperExpr
3951 var frame
= v
.frame
.as(not null)
3952 var recv
= frame
.arguments
.first
3954 var callsite
= self.callsite
3955 if callsite
!= null then
3956 if callsite
.is_broken
then return null
3959 if self.n_args
.n_exprs
.is_empty
then
3960 # Add automatic arguments for the super init call
3962 for i
in [0..callsite
.msignature
.arity
[ do
3963 args
.add
(frame
.arguments
[i
+1])
3966 args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3970 var res
= v
.compile_callsite
(callsite
, args
)
3974 var mpropdef
= self.mpropdef
.as(not null)
3977 if self.n_args
.n_exprs
.is_empty
then
3978 args
= frame
.arguments
3980 args
= v
.varargize
(mpropdef
, signaturemap
, recv
, self.n_args
.n_exprs
)
3983 # Standard call-next-method
3984 return v
.supercall
(mpropdef
, recv
.mtype
.as(MClassType), args
)
3988 redef class ANewExpr
3991 var mtype
= self.recvtype
3992 assert mtype
!= null
3994 if mtype
.mclass
.name
== "NativeArray" then
3995 assert self.n_args
.n_exprs
.length
== 1
3996 var l
= v
.expr
(self.n_args
.n_exprs
.first
, null)
3997 assert mtype
isa MGenericType
3998 var elttype
= mtype
.arguments
.first
3999 return v
.native_array_instance
(elttype
, l
)
4002 var callsite
= self.callsite
4003 if callsite
== null then return v
.init_instance_or_extern
(mtype
)
4004 if callsite
.is_broken
then return null
4007 # new factories are badly implemented.
4008 # They assume a stub temporary receiver exists.
4009 # This temporary receiver is required because it
4010 # currently holds the method and the formal types.
4012 # However, this object could be reused if the formal types are the same.
4013 # Therefore, the following code will `once` it in these case
4014 if callsite
.mproperty
.is_new
and not mtype
.need_anchor
then
4015 var name
= v
.get_name
("varoncenew")
4016 var guard
= v
.get_name
(name
+ "_guard")
4017 v
.add_decl
("static {mtype.ctype} {name};")
4018 v
.add_decl
("static int {guard};")
4019 recv
= v
.new_var
(mtype
)
4020 v
.add
("if (likely({guard})) \{")
4021 v
.add
("{recv} = {name};")
4023 var i
= v
.init_instance_or_extern
(mtype
)
4024 v
.add
("{recv} = {i};")
4025 v
.add
("{name} = {recv};")
4026 v
.add
("{guard} = 1;")
4029 recv
= v
.init_instance_or_extern
(mtype
)
4032 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
4033 var res2
= v
.compile_callsite
(callsite
, args
)
4034 if res2
!= null then
4035 #self.debug("got {res2} from {mproperty}. drop {recv}")
4042 redef class AAttrExpr
4045 var recv
= v
.expr
(self.n_expr
, null)
4046 var mproperty
= self.mproperty
.as(not null)
4047 return v
.read_attribute
(mproperty
, recv
)
4051 redef class AAttrAssignExpr
4054 var recv
= v
.expr
(self.n_expr
, null)
4055 var i
= v
.expr
(self.n_value
, null)
4056 var mproperty
= self.mproperty
.as(not null)
4057 v
.write_attribute
(mproperty
, recv
, i
)
4062 redef class AAttrReassignExpr
4065 var recv
= v
.expr
(self.n_expr
, null)
4066 var value
= v
.expr
(self.n_value
, null)
4067 var mproperty
= self.mproperty
.as(not null)
4068 var attr
= v
.read_attribute
(mproperty
, recv
)
4069 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [attr
, value
])
4071 v
.write_attribute
(mproperty
, recv
, res
)
4075 redef class AIssetAttrExpr
4078 var recv
= v
.expr
(self.n_expr
, null)
4079 var mproperty
= self.mproperty
.as(not null)
4080 return v
.isset_attribute
(mproperty
, recv
)
4084 redef class AVarargExpr
4087 return v
.expr
(self.n_expr
, null)
4091 redef class ANamedargExpr
4094 return v
.expr
(self.n_expr
, null)
4098 redef class ADebugTypeExpr
4107 redef class Array[E
]
4108 # Return a new `Array` with the elements only contened in self and not in `o`
4109 fun -(o
: Array[E
]): Array[E
] do
4110 var res
= new Array[E
]
4111 for e
in self do if not o
.has
(e
) then res
.add
(e
)
4117 # All `MProperty` associated to all `MClassDef` of `mclass`
4118 fun properties
(mclass
: MClass): Set[MProperty] do
4119 if not self.properties_cache
.has_key
(mclass
) then
4120 var properties
= new HashSet[MProperty]
4121 var parents
= new Array[MClass]
4122 if self.flatten_mclass_hierarchy
.has
(mclass
) then
4123 parents
.add_all
(mclass
.in_hierarchy
(self).direct_greaters
)
4125 for parent
in parents
do
4126 properties
.add_all
(self.properties
(parent
))
4128 for mclassdef
in mclass
.mclassdefs
do
4129 if not self.in_importation
<= mclassdef
.mmodule
then continue
4130 for mprop
in mclassdef
.intro_mproperties
do
4131 properties
.add
(mprop
)
4134 self.properties_cache
[mclass
] = properties
4136 return properties_cache
[mclass
]
4138 private var properties_cache
: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
4140 # Write FFI and nitni results to file
4141 fun finalize_ffi
(c
: AbstractCompiler) do end
4143 # Give requided addinional system libraries (as given to LD_LIBS)
4144 # Note: can return null instead of an empty set
4145 fun collect_linker_libs
: nullable Array[String] do return null
4148 # Create a tool context to handle options and paths
4149 var toolcontext
= new ToolContext
4151 toolcontext
.tooldescription
= "Usage: nitc [OPTION]... file.nit...\nCompiles Nit programs."
4153 # We do not add other options, so process them now!
4154 toolcontext
.process_options
(args
)
4156 # We need a model to collect stufs
4157 var model
= new Model
4158 # An a model builder to parse files
4159 var modelbuilder
= new ModelBuilder(model
, toolcontext
)
4161 var arguments
= toolcontext
.option_context
.rest
4162 if arguments
.length
> 1 and toolcontext
.opt_output
.value
!= null then
4163 print
"Option Error: --output needs a single source file. Do you prefer --dir?"
4167 # Here we load an process all modules passed on the command line
4168 var mmodules
= modelbuilder
.parse
(arguments
)
4170 if mmodules
.is_empty
then toolcontext
.quit
4172 modelbuilder
.run_phases
4174 for mmodule
in mmodules
do
4175 toolcontext
.info
("*** PROCESS {mmodule} ***", 1)
4177 toolcontext
.run_global_phases
(ms
)