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\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")
516 res
= sys
.system
("{command} 2>&1 >/dev/null")
519 toolcontext
.error
(null, "Compilation Error: `make` failed with error code: {res}. The command was `{command}`.")
524 # Singleton that store the knowledge about the compilation process
525 abstract class AbstractCompiler
526 type VISITOR: AbstractCompilerVisitor
528 # Table corresponding c_names to nit names (methods)
529 var names
= new HashMap[String, String]
531 # The main module of the program currently compiled
532 # Is assigned during the separate compilation
533 var mainmodule
: MModule is writable
535 # The real main module of the program
536 var realmainmodule
: MModule is noinit
538 # The modelbuilder used to know the model and the AST
539 var modelbuilder
: ModelBuilder is protected writable
541 # The associated toolchain
543 # Set by `modelbuilder.write_and_make` and permit sub-routines to access the current toolchain if required.
544 var toolchain
: Toolchain is noinit
546 # Is hardening asked? (see --hardening)
547 fun hardening
: Bool do return self.modelbuilder
.toolcontext
.opt_hardening
.value
549 # The targeted specific platform
550 var target_platform
: Platform is noinit
554 self.realmainmodule
= mainmodule
555 target_platform
= mainmodule
.target_platform
or else new Platform
558 # Do the full code generation of the program `mainmodule`
559 # It is the main method usually called after the instantiation
560 fun do_compilation
is abstract
562 # Force the creation of a new file
563 # The point is to avoid contamination between must-be-compiled-separately files
564 fun new_file
(name
: String): CodeFile
566 if modelbuilder
.toolcontext
.opt_group_c_files
.value
then
567 if self.files
.is_empty
then
568 var f
= new CodeFile(mainmodule
.c_name
)
571 return self.files
.first
573 var f
= new CodeFile(name
)
578 # The list of all associated files
579 # Used to generate .c files
580 var files
= new List[CodeFile]
582 # Initialize a visitor specific for a compiler engine
583 fun new_visitor
: VISITOR is abstract
585 # Where global declaration are stored (the main .h)
586 var header
: CodeWriter is writable, noinit
588 # Additionnal linker script for `ld`.
589 # Mainly used to do specific link-time symbol resolution
590 var linker_script
= new Array[String]
592 # Provide a declaration that can be requested (before or latter) by a visitor
593 fun provide_declaration
(key
: String, s
: String)
595 if self.provided_declarations
.has_key
(key
) then
596 assert self.provided_declarations
[key
] == s
598 self.provided_declarations
[key
] = s
601 private var provided_declarations
= new HashMap[String, String]
603 private var requirers_of_declarations
= new HashMap[String, ANode]
605 # Builds the .c and .h files to be used when generating a Stack Trace
606 # Binds the generated C function names to Nit function names
607 fun build_c_to_nit_bindings
609 var compile_dir
= toolchain
.compile_dir
611 var stream
= new FileWriter.open
("{compile_dir}/c_functions_hash.c")
612 stream
.write
("#include <string.h>\n")
613 stream
.write
("#include <stdlib.h>\n")
614 stream
.write
("#include \"c_functions_hash
.h\
"\n")
615 stream
.write
("typedef struct C_Nit_Names\{char* name; char* nit_name;\}C_Nit_Names;\n")
616 stream
.write
("const char* get_nit_name(register const char* procproc, register unsigned int len)\{\n")
617 stream
.write
("char* procname = malloc(len+1);")
618 stream
.write
("memcpy(procname, procproc, len);")
619 stream
.write
("procname[len] = '\\0';")
620 stream
.write
("static const C_Nit_Names map[{names.length}] = \{\n")
621 for i
in names
.keys
do
623 stream.write(i.escape_to_c)
624 stream.write("\
",\"")
625 stream.write(names[i].escape_to_c)
626 stream.write("\
"\},\n")
628 stream
.write
("\};\n")
629 stream
.write
("int i;")
630 stream
.write
("for(i = 0; i < {names.length}; i++)\{")
631 stream
.write
("if(strcmp(procname,map[i].name) == 0)\{")
632 stream
.write
("free(procname);")
633 stream
.write
("return map[i].nit_name;")
636 stream
.write
("free(procname);")
637 stream
.write
("return NULL;")
641 stream
= new FileWriter.open
("{compile_dir}/c_functions_hash.h")
642 stream
.write
("const char* get_nit_name(register const char* procname, register unsigned int len);\n")
645 extern_bodies
.add
(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
649 # This method call compile_header_strucs method that has to be refined
650 fun compile_header
do
651 self.header
.add_decl
("#include <stdlib.h>")
652 self.header
.add_decl
("#include <stdio.h>")
653 self.header
.add_decl
("#include <string.h>")
654 self.header
.add_decl
("#include <sys/types.h>\n")
655 self.header
.add_decl
("#include <unistd.h>\n")
656 self.header
.add_decl
("#include <stdint.h>\n")
657 self.header
.add_decl
("#include <inttypes.h>\n")
658 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
659 self.header
.add_decl
("#ifdef ANDROID")
660 self.header
.add_decl
(" #include <android/log.h>")
661 self.header
.add_decl
(" #define PRINT_ERROR(...) (void)__android_log_print(ANDROID_LOG_WARN, \"Nit\
", __VA_ARGS__)")
662 self.header
.add_decl
("#else")
663 self.header
.add_decl
(" #define PRINT_ERROR(...) fprintf(stderr, __VA_ARGS__)")
664 self.header
.add_decl
("#endif")
666 compile_header_structs
667 compile_nitni_structs
669 var gccd_disable
= modelbuilder
.toolcontext
.opt_no_gcc_directive
.value
670 if gccd_disable
.has
("noreturn") or gccd_disable
.has
("all") then
671 # Signal handler function prototype
672 self.header
.add_decl
("void fatal_exit(int);")
674 self.header
.add_decl
("void fatal_exit(int) __attribute__ ((noreturn));")
677 if gccd_disable
.has
("likely") or gccd_disable
.has
("all") then
678 self.header
.add_decl
("#define likely(x) (x)")
679 self.header
.add_decl
("#define unlikely(x) (x)")
680 else if gccd_disable
.has
("correct-likely") then
681 # invert the `likely` definition
682 # Used by masochists to bench the worst case
683 self.header
.add_decl
("#define likely(x) __builtin_expect((x),0)")
684 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),1)")
686 self.header
.add_decl
("#define likely(x) __builtin_expect((x),1)")
687 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),0)")
690 # Global variable used by intern methods
691 self.header
.add_decl
("extern int glob_argc;")
692 self.header
.add_decl
("extern char **glob_argv;")
693 self.header
.add_decl
("extern val *glob_sys;")
696 # Declaration of structures for live Nit types
697 protected fun compile_header_structs
is abstract
699 # Declaration of structures for nitni undelying the FFI
700 protected fun compile_nitni_structs
702 self.header
.add_decl
"""
703 /* Native reference to Nit objects */
704 /* This structure is used to represent every Nit type in extern methods and custom C code. */
706 struct nitni_ref *next,
707 *prev; /* adjacent global references in global list */
708 int count; /* number of time this global reference has been marked */
711 /* List of global references from C code to Nit objects */
712 /* Instanciated empty at init of Nit system and filled explicitly by user in C code */
713 struct nitni_global_ref_list_t {
714 struct nitni_ref *head, *tail;
716 extern struct nitni_global_ref_list_t *nitni_global_ref_list;
718 /* Initializer of global reference list */
719 extern void nitni_global_ref_list_init();
721 /* Intern function to add a global reference to the list */
722 extern void nitni_global_ref_add( struct nitni_ref *ref );
724 /* Intern function to remove a global reference from the list */
725 extern void nitni_global_ref_remove( struct nitni_ref *ref );
727 /* Increase count on an existing global reference */
728 extern void nitni_global_ref_incr( struct nitni_ref *ref );
730 /* Decrease count on an existing global reference */
731 extern void nitni_global_ref_decr( struct nitni_ref *ref );
735 fun compile_finalizer_function
737 var finalizable_type
= mainmodule
.finalizable_type
738 if finalizable_type
== null then return
740 var finalize_meth
= mainmodule
.try_get_primitive_method
("finalize", finalizable_type
.mclass
)
742 if finalize_meth
== null then
743 modelbuilder
.toolcontext
.error
(null, "Error: the `Finalizable` class does not declare the `finalize` method.")
747 var v
= self.new_visitor
748 v
.add_decl
"void gc_finalize (void *obj, void *client_data) \{"
749 var recv
= v
.new_expr
("obj", finalizable_type
)
750 v
.send
(finalize_meth
, [recv
])
754 # Generate the main C function.
758 # * allocate the Sys object if it exists
759 # * call init if is exists
760 # * call main if it exists
761 fun compile_main_function
763 var v
= self.new_visitor
764 v
.add_decl
("#include <signal.h>")
765 var platform
= target_platform
767 var no_main
= platform
.no_main
or modelbuilder
.toolcontext
.opt_no_main
.value
769 if platform
.supports_libunwind
then
770 v
.add_decl
("#ifndef NO_STACKTRACE")
771 v
.add_decl
("#define UNW_LOCAL_ONLY")
772 v
.add_decl
("#include <libunwind.h>")
773 v
.add_decl
("#include \"c_functions_hash
.h\
"")
776 v
.add_decl
("int glob_argc;")
777 v
.add_decl
("char **glob_argv;")
778 v
.add_decl
("val *glob_sys;")
780 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
781 for tag
in count_type_test_tags
do
782 v
.add_decl
("long count_type_test_resolved_{tag};")
783 v
.add_decl
("long count_type_test_unresolved_{tag};")
784 v
.add_decl
("long count_type_test_skipped_{tag};")
785 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
786 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
787 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
791 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
792 v
.add_decl
("long count_invoke_by_tables;")
793 v
.add_decl
("long count_invoke_by_direct;")
794 v
.add_decl
("long count_invoke_by_inline;")
795 v
.compiler
.header
.add_decl
("extern long count_invoke_by_tables;")
796 v
.compiler
.header
.add_decl
("extern long count_invoke_by_direct;")
797 v
.compiler
.header
.add_decl
("extern long count_invoke_by_inline;")
800 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
801 v
.add_decl
("long count_attr_reads = 0;")
802 v
.add_decl
("long count_isset_checks = 0;")
803 v
.compiler
.header
.add_decl
("extern long count_attr_reads;")
804 v
.compiler
.header
.add_decl
("extern long count_isset_checks;")
807 v
.add_decl
("static void show_backtrace(void) \{")
808 if platform
.supports_libunwind
then
809 v
.add_decl
("#ifndef NO_STACKTRACE")
810 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
811 v
.add_decl
("unw_cursor_t cursor;")
812 v
.add_decl
("if(opt==NULL)\{")
813 v
.add_decl
("unw_context_t uc;")
814 v
.add_decl
("unw_word_t ip;")
815 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
816 v
.add_decl
("unw_getcontext(&uc);")
817 v
.add_decl
("unw_init_local(&cursor, &uc);")
818 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
819 v
.add_decl
("PRINT_ERROR(\"-- Stack Trace ------------------------------\\n\
");")
820 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
821 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
822 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
823 v
.add_decl
(" const char* recv = get_nit_name(procname, strlen(procname));")
824 v
.add_decl
(" if (recv != NULL)\{")
825 v
.add_decl
(" PRINT_ERROR(\"` %s\\n\", recv);")
826 v.add_decl(" \}else\{")
827 v.add_decl(" PRINT_ERROR(\"` %s\\n\
", procname);")
830 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
831 v
.add_decl
("free(procname);")
833 v
.add_decl
("#endif /* NO_STACKTRACE */")
837 v
.add_decl
("void sig_handler(int signo)\{")
838 v
.add_decl
("PRINT_ERROR(\"Caught signal
: %s\\n\
", strsignal(signo));")
839 v
.add_decl
("show_backtrace();")
841 v
.add_decl
("signal(signo, SIG_DFL);")
842 v
.add_decl
("kill(getpid(), signo);")
845 v
.add_decl
("void fatal_exit(int status) \{")
846 v
.add_decl
("show_backtrace();")
847 v
.add_decl
("exit(status);")
851 v
.add_decl
("int nit_main(int argc, char** argv) \{")
853 v
.add_decl
("int main(int argc, char** argv) \{")
856 v
.add
"#ifndef ANDROID"
857 v
.add
("signal(SIGABRT, sig_handler);")
858 v
.add
("signal(SIGFPE, sig_handler);")
859 v
.add
("signal(SIGILL, sig_handler);")
860 v
.add
("signal(SIGINT, sig_handler);")
861 v
.add
("signal(SIGTERM, sig_handler);")
862 v
.add
("signal(SIGSEGV, sig_handler);")
864 v
.add
("signal(SIGPIPE, SIG_IGN);")
866 v
.add
("glob_argc = argc; glob_argv = argv;")
867 v
.add
("initialize_gc_option();")
869 v
.add
"initialize_nitni_global_refs();"
871 var main_type
= mainmodule
.sys_type
872 if main_type
!= null then
873 var mainmodule
= v
.compiler
.mainmodule
874 var glob_sys
= v
.init_instance
(main_type
)
875 v
.add
("glob_sys = {glob_sys};")
876 var main_init
= mainmodule
.try_get_primitive_method
("init", main_type
.mclass
)
877 if main_init
!= null then
878 v
.send
(main_init
, [glob_sys
])
880 var main_method
= mainmodule
.try_get_primitive_method
("run", main_type
.mclass
) or else
881 mainmodule
.try_get_primitive_method
("main", main_type
.mclass
)
882 if main_method
!= null then
883 v
.send
(main_method
, [glob_sys
])
887 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
888 v
.add_decl
("long count_type_test_resolved_total = 0;")
889 v
.add_decl
("long count_type_test_unresolved_total = 0;")
890 v
.add_decl
("long count_type_test_skipped_total = 0;")
891 v
.add_decl
("long count_type_test_total_total = 0;")
892 for tag
in count_type_test_tags
do
893 v
.add_decl
("long count_type_test_total_{tag};")
894 v
.add
("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
895 v
.add
("count_type_test_resolved_total += count_type_test_resolved_{tag};")
896 v
.add
("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
897 v
.add
("count_type_test_skipped_total += count_type_test_skipped_{tag};")
898 v
.add
("count_type_test_total_total += count_type_test_total_{tag};")
900 v
.add
("printf(\"# dynamic count_type_test: total %l\\n\");")
901 v
.add
("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\
");")
902 var tags
= count_type_test_tags
.to_a
905 v
.add
("printf(\"{tag}\
");")
906 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
907 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
908 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
909 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\\n\
", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
913 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
914 v
.add_decl
("long count_invoke_total;")
915 v
.add
("count_invoke_total = count_invoke_by_tables + count_invoke_by_direct + count_invoke_by_inline;")
916 v
.add
("printf(\"# dynamic count_invocation: total %ld\\n\", count_invoke_total);")
917 v
.add
("printf(\"by table
: %ld
(%.2f
%%)\\n\
", count_invoke_by_tables, 100.0*count_invoke_by_tables/count_invoke_total);")
918 v
.add
("printf(\"direct
: %ld
(%.2f
%%)\\n\
", count_invoke_by_direct, 100.0*count_invoke_by_direct/count_invoke_total);")
919 v
.add
("printf(\"inlined
: %ld
(%.2f
%%)\\n\
", count_invoke_by_inline, 100.0*count_invoke_by_inline/count_invoke_total);")
922 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
923 v
.add
("printf(\"# dynamic attribute reads: %ld\\n\", count_attr_reads);")
924 v
.add
("printf(\"# dynamic isset checks: %ld\\n\", count_isset_checks);")
930 for m
in mainmodule
.in_importation
.greaters
do
931 var f
= "FILE_"+m
.c_name
932 v
.add
"const char {f}[] = \"{m.location.file.filename.escape_to_c}\
";"
933 provide_declaration
(f
, "extern const char {f}[];")
937 # Copile all C functions related to the [incr|decr]_ref features of the FFI
938 fun compile_nitni_global_ref_functions
940 var v
= self.new_visitor
942 struct nitni_global_ref_list_t *nitni_global_ref_list;
943 void initialize_nitni_global_refs() {
944 nitni_global_ref_list = (struct nitni_global_ref_list_t*)nit_alloc(sizeof(struct nitni_global_ref_list_t));
945 nitni_global_ref_list->head = NULL;
946 nitni_global_ref_list->tail = NULL;
949 void nitni_global_ref_add( struct nitni_ref *ref ) {
950 if ( nitni_global_ref_list->head == NULL ) {
951 nitni_global_ref_list->head = ref;
954 nitni_global_ref_list->tail->next = ref;
955 ref->prev = nitni_global_ref_list->tail;
957 nitni_global_ref_list->tail = ref;
962 void nitni_global_ref_remove( struct nitni_ref *ref ) {
963 if ( ref->prev == NULL ) {
964 nitni_global_ref_list->head = ref->next;
966 ref->prev->next = ref->next;
969 if ( ref->next == NULL ) {
970 nitni_global_ref_list->tail = ref->prev;
972 ref->next->prev = ref->prev;
976 extern void nitni_global_ref_incr( struct nitni_ref *ref ) {
977 if ( ref->count == 0 ) /* not registered */
980 nitni_global_ref_add( ref );
986 extern void nitni_global_ref_decr( struct nitni_ref *ref ) {
987 if ( ref->count == 1 ) /* was last reference */
989 /* remove from list */
990 nitni_global_ref_remove( ref );
998 # List of additional files required to compile (FFI)
999 var extern_bodies
= new Array[ExternFile]
1001 # List of source files to copy over to the compile dir
1002 var files_to_copy
= new Array[String]
1004 # This is used to avoid adding an extern file more than once
1005 private var seen_extern
= new ArraySet[String]
1007 # Generate code that initialize the attributes on a new instance
1008 fun generate_init_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1010 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1011 self.mainmodule
.linearize_mclassdefs
(cds
)
1013 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1014 npropdef
.init_expr
(v
, recv
)
1019 # Generate code that check if an attribute is correctly initialized
1020 fun generate_check_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1022 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1023 self.mainmodule
.linearize_mclassdefs
(cds
)
1025 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1026 npropdef
.check_expr
(v
, recv
)
1033 var count_type_test_tags
: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
1034 var count_type_test_resolved
: HashMap[String, Int] = init_count_type_test_tags
1035 var count_type_test_unresolved
: HashMap[String, Int] = init_count_type_test_tags
1036 var count_type_test_skipped
: HashMap[String, Int] = init_count_type_test_tags
1038 protected fun init_count_type_test_tags
: HashMap[String, Int]
1040 var res
= new HashMap[String, Int]
1041 for tag
in count_type_test_tags
do
1047 # Display stats about compilation process
1051 # * type tests against resolved types (`x isa Collection[Animal]`)
1052 # * type tests against unresolved types (`x isa Collection[E]`)
1053 # * type tests skipped
1054 # * type tests total
1057 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1058 print
"# static count_type_test"
1059 print
"\tresolved:\tunresolved\tskipped\ttotal"
1060 var count_type_test_total
= init_count_type_test_tags
1061 count_type_test_resolved
["total"] = 0
1062 count_type_test_unresolved
["total"] = 0
1063 count_type_test_skipped
["total"] = 0
1064 count_type_test_total
["total"] = 0
1065 for tag
in count_type_test_tags
do
1066 count_type_test_total
[tag
] = count_type_test_resolved
[tag
] + count_type_test_unresolved
[tag
] + count_type_test_skipped
[tag
]
1067 count_type_test_resolved
["total"] += count_type_test_resolved
[tag
]
1068 count_type_test_unresolved
["total"] += count_type_test_unresolved
[tag
]
1069 count_type_test_skipped
["total"] += count_type_test_skipped
[tag
]
1070 count_type_test_total
["total"] += count_type_test_total
[tag
]
1072 var count_type_test
= count_type_test_total
["total"]
1073 var tags
= count_type_test_tags
.to_a
1077 printn
"\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
1078 printn
"\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
1079 printn
"\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
1080 printn
"\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
1086 fun finalize_ffi_for_module
(mmodule
: MModule) do mmodule
.finalize_ffi
(self)
1089 # A file unit (may be more than one file if
1090 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
1093 var writers
= new Array[CodeWriter]
1094 var required_declarations
= new HashSet[String]
1097 # Where to store generated lines
1100 var lines
: List[String] = new List[String]
1101 var decl_lines
: List[String] = new List[String]
1103 # Add a line in the main part of the generated C
1104 fun add
(s
: String) do self.lines
.add
(s
)
1107 # (used for local or global declaration)
1108 fun add_decl
(s
: String) do self.decl_lines
.add
(s
)
1112 file
.writers
.add
(self)
1116 # A visitor on the AST of property definition that generate the C code.
1117 abstract class AbstractCompilerVisitor
1119 type COMPILER: AbstractCompiler
1121 # The associated compiler
1122 var compiler
: COMPILER
1124 # The current visited AST node
1125 var current_node
: nullable ANode = null is writable
1127 # The current `StaticFrame`
1128 var frame
: nullable StaticFrame = null is writable
1130 # Alias for self.compiler.mainmodule.object_type
1131 fun object_type
: MClassType do return self.compiler
.mainmodule
.object_type
1133 # Alias for self.compiler.mainmodule.bool_type
1134 fun bool_type
: MClassType do return self.compiler
.mainmodule
.bool_type
1136 var writer
: CodeWriter is noinit
1140 self.writer
= new CodeWriter(compiler
.files
.last
)
1143 # Force to get the primitive property named `name` in the instance `recv` or abort
1144 fun get_property
(name
: String, recv
: MType): MMethod
1146 assert recv
isa MClassType
1147 return self.compiler
.modelbuilder
.force_get_primitive_method
(self.current_node
, name
, recv
.mclass
, self.compiler
.mainmodule
)
1150 fun compile_callsite
(callsite
: CallSite, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1152 if callsite
.is_broken
then return null
1153 var initializers
= callsite
.mpropdef
.initializers
1154 if not initializers
.is_empty
then
1155 var recv
= arguments
.first
1158 for p
in initializers
do
1159 if p
isa MMethod then
1161 for x
in p
.intro
.msignature
.mparameters
do
1162 args
.add arguments
[i
]
1166 else if p
isa MAttribute then
1167 self.write_attribute
(p
, recv
, arguments
[i
])
1171 assert i
== arguments
.length
1173 return self.send
(callsite
.mproperty
, [recv
])
1176 return self.send
(callsite
.mproperty
, arguments
)
1179 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable is abstract
1181 fun calloc_array
(ret_type
: MType, arguments
: Array[RuntimeVariable]) is abstract
1183 fun native_array_def
(pname
: String, ret_type
: nullable MType, arguments
: Array[RuntimeVariable]) is abstract
1185 # Return an element of a native array.
1186 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1187 fun native_array_get
(native_array
: RuntimeVariable, index
: Int): RuntimeVariable is abstract
1189 # Store an element in a native array.
1190 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1191 fun native_array_set
(native_array
: RuntimeVariable, index
: Int, value
: RuntimeVariable) is abstract
1193 # Evaluate `args` as expressions in the call of `mpropdef` on `recv`.
1194 # This method is used to manage varargs in signatures and returns the real array
1195 # of runtime variables to use in the call.
1196 fun varargize
(mpropdef
: MMethodDef, map
: nullable SignatureMap, recv
: RuntimeVariable, args
: SequenceRead[AExpr]): Array[RuntimeVariable]
1198 var msignature
= mpropdef
.new_msignature
or else mpropdef
.msignature
.as(not null)
1199 var res
= new Array[RuntimeVariable]
1202 if msignature
.arity
== 0 then return res
1205 assert args
.length
== msignature
.arity
1207 res
.add
self.expr
(ne
, null)
1212 # Eval in order of arguments, not parameters
1213 var exprs
= new Array[RuntimeVariable].with_capacity
(args
.length
)
1215 exprs
.add
self.expr
(ne
, null)
1218 # Fill `res` with the result of the evaluation according to the mapping
1219 for i
in [0..msignature
.arity
[ do
1220 var param
= msignature
.mparameters
[i
]
1221 var j
= map
.map
.get_or_null
(i
)
1224 res
.add
(null_instance
)
1227 if param
.is_vararg
and args
[i
].vararg_decl
> 0 then
1228 var vararg
= exprs
.sub
(j
, args
[i
].vararg_decl
)
1229 var elttype
= param
.mtype
1230 var arg
= self.vararg_instance
(mpropdef
, recv
, vararg
, elttype
)
1241 # Anchor a type to the main module and the current receiver
1242 fun anchor
(mtype
: MType): MType
1244 if not mtype
.need_anchor
then return mtype
1245 return mtype
.anchor_to
(self.compiler
.mainmodule
, self.frame
.receiver
)
1248 fun resolve_for
(mtype
: MType, recv
: RuntimeVariable): MType
1250 if not mtype
.need_anchor
then return mtype
1251 return mtype
.resolve_for
(recv
.mcasttype
, self.frame
.receiver
, self.compiler
.mainmodule
, true)
1254 # Unsafely cast a value to a new type
1255 # ie the result share the same C variable but my have a different mcasttype
1256 # NOTE: if the adaptation is useless then `value` is returned as it.
1257 # ENSURE: `result.name == value.name`
1258 fun autoadapt
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable
1260 mtype
= self.anchor
(mtype
)
1261 var valmtype
= value
.mcasttype
1262 if valmtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1266 if valmtype
isa MNullableType and valmtype
.mtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1267 var res
= new RuntimeVariable(value
.name
, valmtype
, valmtype
.mtype
)
1270 var res
= new RuntimeVariable(value
.name
, valmtype
, mtype
)
1275 # Generate a super call from a method definition
1276 fun supercall
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1278 # Adapt the arguments of a method according to targetted `MMethodDef`
1279 fun adapt_signature
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1281 # Unbox all the arguments of a method when implemented `extern` or `intern`
1282 fun unbox_signature_extern
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1284 # Box or unbox a value to another type iff a C type conversion is needed
1285 # ENSURE: `result.mtype.ctype == mtype.ctype`
1286 fun autobox
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1288 # Box extern classes to be used in the generated code
1289 fun box_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1291 # Unbox extern classes to be used in extern code (legacy NI and FFI)
1292 fun unbox_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1294 # Generate a polymorphic subtype test
1295 fun type_test
(value
: RuntimeVariable, mtype
: MType, tag
: String): RuntimeVariable is abstract
1297 # Generate the code required to dynamically check if 2 objects share the same runtime type
1298 fun is_same_type_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1300 # Generate a Nit "is" for two runtime_variables
1301 fun equal_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1305 # Generate a static call on a method definition
1306 fun call
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1308 # Generate a polymorphic send for the method `m` and the arguments `args`
1309 fun send
(m
: MMethod, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1311 # Generate a monomorphic send for the method `m`, the type `t` and the arguments `args`
1312 fun monomorphic_send
(m
: MMethod, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1314 assert t
isa MClassType
1315 var propdef
= m
.lookup_first_definition
(self.compiler
.mainmodule
, t
)
1316 return self.call
(propdef
, t
, args
)
1319 # Generate a monomorphic super send from the method `m`, the type `t` and the arguments `args`
1320 fun monomorphic_super_send
(m
: MMethodDef, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1322 assert t
isa MClassType
1323 m
= m
.lookup_next_definition
(self.compiler
.mainmodule
, t
)
1324 return self.call
(m
, t
, args
)
1327 # Attributes handling
1329 # Generate a polymorphic attribute is_set test
1330 fun isset_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1332 # Generate a polymorphic attribute read
1333 fun read_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1335 # Generate a polymorphic attribute write
1336 fun write_attribute
(a
: MAttribute, recv
: RuntimeVariable, value
: RuntimeVariable) is abstract
1340 # Add a check and an abort for a null receiver if needed
1341 fun check_recv_notnull
(recv
: RuntimeVariable)
1343 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_null
.value
then return
1345 var maybenull
= recv
.mcasttype
isa MNullableType or recv
.mcasttype
isa MNullType
1347 self.add
("if (unlikely({recv} == NULL)) \{")
1348 self.add_abort
("Receiver is null")
1355 private var names
= new HashSet[String]
1356 private var last
: Int = 0
1358 # Return a new name based on `s` and unique in the visitor
1359 fun get_name
(s
: String): String
1361 if not self.names
.has
(s
) then
1365 var i
= self.last
+ 1
1368 if not self.names
.has
(s2
) then
1377 # Return an unique and stable identifier associated with an escapemark
1378 fun escapemark_name
(e
: nullable EscapeMark): String
1381 if frame
.escapemark_names
.has_key
(e
) then return frame
.escapemark_names
[e
]
1383 if name
== null then name
= "label"
1384 name
= get_name
(name
)
1385 frame
.escapemark_names
[e
] = name
1389 # Insert a C label for associated with an escapemark
1390 fun add_escape_label
(e
: nullable EscapeMark)
1392 if e
== null then return
1393 if e
.escapes
.is_empty
then return
1394 add
("BREAK_{escapemark_name(e)}: (void)0;")
1397 # Return a "const char*" variable associated to the classname of the dynamic type of an object
1398 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
1399 fun class_name_string
(value
: RuntimeVariable): String is abstract
1401 # Variables handling
1403 protected var variables
= new HashMap[Variable, RuntimeVariable]
1405 # Return the local runtime_variable associated to a Nit local variable
1406 fun variable
(variable
: Variable): RuntimeVariable
1408 if self.variables
.has_key
(variable
) then
1409 return self.variables
[variable
]
1411 var name
= self.get_name
("var_{variable.name}")
1412 var mtype
= variable
.declared_type
.as(not null)
1413 mtype
= self.anchor
(mtype
)
1414 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1415 self.add_decl
("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
1416 self.variables
[variable
] = res
1421 # Return a new uninitialized local runtime_variable
1422 fun new_var
(mtype
: MType): RuntimeVariable
1424 mtype
= self.anchor
(mtype
)
1425 var name
= self.get_name
("var")
1426 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1427 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1431 # The difference with `new_var` is the C static type of the local variable
1432 fun new_var_extern
(mtype
: MType): RuntimeVariable
1434 mtype
= self.anchor
(mtype
)
1435 var name
= self.get_name
("var")
1436 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1437 self.add_decl
("{mtype.ctype_extern} {name} /* : {mtype} for extern */;")
1441 # Return a new uninitialized named runtime_variable
1442 fun new_named_var
(mtype
: MType, name
: String): RuntimeVariable
1444 mtype
= self.anchor
(mtype
)
1445 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1446 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1450 # Correctly assign a left and a right value
1451 # Boxing and unboxing is performed if required
1452 fun assign
(left
, right
: RuntimeVariable)
1454 right
= self.autobox
(right
, left
.mtype
)
1455 self.add
("{left} = {right};")
1458 # Generate instances
1460 # Generate a alloc-instance + init-attributes
1461 fun init_instance
(mtype
: MClassType): RuntimeVariable is abstract
1463 # Allocate and init attributes of an instance of a standard or extern class
1465 # Does not support universals and the pseudo-internal `NativeArray` class.
1466 fun init_instance_or_extern
(mtype
: MClassType): RuntimeVariable
1469 var ctype
= mtype
.ctype
1470 assert mtype
.mclass
.name
!= "NativeArray"
1471 if not mtype
.is_c_primitive
then
1472 recv
= init_instance
(mtype
)
1473 else if ctype
== "char*" then
1474 recv
= new_expr
("NULL/*special!*/", mtype
)
1476 recv
= new_expr
("({ctype})0/*special!*/", mtype
)
1481 # Set a GC finalizer on `recv`, only if `recv` isa Finalizable
1482 fun set_finalizer
(recv
: RuntimeVariable)
1484 var mtype
= recv
.mtype
1485 var finalizable_type
= compiler
.mainmodule
.finalizable_type
1486 if finalizable_type
!= null and not mtype
.need_anchor
and
1487 mtype
.is_subtype
(compiler
.mainmodule
, null, finalizable_type
) then
1488 add
"gc_register_finalizer({recv});"
1492 # The currently processed module
1494 # alias for `compiler.mainmodule`
1495 fun mmodule
: MModule do return compiler
.mainmodule
1497 # Generate an integer value
1498 fun int_instance
(value
: Int): RuntimeVariable
1500 var t
= mmodule
.int_type
1501 var res
= new RuntimeVariable("{value.to_s}l", t
, t
)
1505 # Generate a byte value
1506 fun byte_instance
(value
: Byte): RuntimeVariable
1508 var t
= mmodule
.byte_type
1509 var res
= new RuntimeVariable("((unsigned char){value.to_s})", t
, t
)
1513 # Generate an int8 value
1514 fun int8_instance
(value
: Int8): RuntimeVariable
1516 var t
= mmodule
.int8_type
1517 var res
= new RuntimeVariable("((int8_t){value.to_s})", t
, t
)
1521 # Generate an int16 value
1522 fun int16_instance
(value
: Int16): RuntimeVariable
1524 var t
= mmodule
.int16_type
1525 var res
= new RuntimeVariable("((int16_t){value.to_s})", t
, t
)
1529 # Generate a uint16 value
1530 fun uint16_instance
(value
: UInt16): RuntimeVariable
1532 var t
= mmodule
.uint16_type
1533 var res
= new RuntimeVariable("((uint16_t){value.to_s})", t
, t
)
1537 # Generate an int32 value
1538 fun int32_instance
(value
: Int32): RuntimeVariable
1540 var t
= mmodule
.int32_type
1541 var res
= new RuntimeVariable("((int32_t){value.to_s})", t
, t
)
1545 # Generate a uint32 value
1546 fun uint32_instance
(value
: UInt32): RuntimeVariable
1548 var t
= mmodule
.uint32_type
1549 var res
= new RuntimeVariable("((uint32_t){value.to_s})", t
, t
)
1553 # Generate a char value
1554 fun char_instance
(value
: Char): RuntimeVariable
1556 var t
= mmodule
.char_type
1558 if value
.code_point
< 128 then
1559 return new RuntimeVariable("'{value.to_s.escape_to_c}'", t
, t
)
1561 return new RuntimeVariable("{value.code_point}", t
, t
)
1565 # Generate a float value
1567 # FIXME pass a Float, not a string
1568 fun float_instance
(value
: String): RuntimeVariable
1570 var t
= mmodule
.float_type
1571 var res
= new RuntimeVariable("{value}", t
, t
)
1575 # Generate an integer value
1576 fun bool_instance
(value
: Bool): RuntimeVariable
1578 var s
= if value
then "1" else "0"
1579 var res
= new RuntimeVariable(s
, bool_type
, bool_type
)
1583 # Generate the `null` value
1584 fun null_instance
: RuntimeVariable
1586 var t
= compiler
.mainmodule
.model
.null_type
1587 var res
= new RuntimeVariable("((val*)NULL)", t
, t
)
1591 # Generate a string value
1592 fun string_instance
(string
: String): RuntimeVariable
1594 var mtype
= mmodule
.string_type
1595 var name
= self.get_name
("varonce")
1596 self.add_decl
("static {mtype.ctype} {name};")
1597 var res
= self.new_var
(mtype
)
1598 self.add
("if (likely({name}!=NULL)) \{")
1599 self.add
("{res} = {name};")
1600 self.add
("\} else \{")
1601 var native_mtype
= mmodule
.native_string_type
1602 var nat
= self.new_var
(native_mtype
)
1603 self.add
("{nat} = \"{string.escape_to_c}\
";")
1604 var bytelen
= self.int_instance
(string
.bytelen
)
1605 var unilen
= self.int_instance
(string
.length
)
1606 self.add
("{res} = {self.send(self.get_property("to_s_full", native_mtype), [nat, bytelen, unilen]).as(not null)};")
1607 self.add
("{name} = {res};")
1612 fun value_instance
(object
: Object): RuntimeVariable
1614 if object
isa Int then
1615 return int_instance
(object
)
1616 else if object
isa Bool then
1617 return bool_instance
(object
)
1618 else if object
isa String then
1619 return string_instance
(object
)
1625 # Generate an array value
1626 fun array_instance
(array
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1628 # Get an instance of a array for a vararg
1629 fun vararg_instance
(mpropdef
: MPropDef, recv
: RuntimeVariable, varargs
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1633 # Add a line in the main part of the generated C
1634 fun add
(s
: String) do self.writer
.lines
.add
(s
)
1637 # (used for local or global declaration)
1638 fun add_decl
(s
: String) do self.writer
.decl_lines
.add
(s
)
1640 # Request the presence of a global declaration
1641 fun require_declaration
(key
: String)
1643 var reqs
= self.writer
.file
.required_declarations
1644 if reqs
.has
(key
) then return
1646 var node
= current_node
1647 if node
!= null then compiler
.requirers_of_declarations
[key
] = node
1650 # Add a declaration in the local-header
1651 # The declaration is ensured to be present once
1652 fun declare_once
(s
: String)
1654 self.compiler
.provide_declaration
(s
, s
)
1655 self.require_declaration
(s
)
1658 # Look for a needed .h and .c file for a given module
1659 # This is used for the legacy FFI
1660 fun add_extern
(mmodule
: MModule)
1662 var file
= mmodule
.location
.file
.filename
1663 file
= file
.strip_extension
(".nit")
1664 var tryfile
= file
+ ".nit.h"
1665 if tryfile
.file_exists
then
1666 self.declare_once
("#include \"{tryfile.basename}\
"")
1667 self.compiler
.files_to_copy
.add
(tryfile
)
1669 tryfile
= file
+ "_nit.h"
1670 if tryfile
.file_exists
then
1671 self.declare_once
("#include \"{tryfile.basename}\
"")
1672 self.compiler
.files_to_copy
.add
(tryfile
)
1675 if self.compiler
.seen_extern
.has
(file
) then return
1676 self.compiler
.seen_extern
.add
(file
)
1677 tryfile
= file
+ ".nit.c"
1678 if not tryfile
.file_exists
then
1679 tryfile
= file
+ "_nit.c"
1680 if not tryfile
.file_exists
then return
1682 var f
= new ExternCFile(tryfile
.basename
, "")
1683 self.compiler
.extern_bodies
.add
(f
)
1684 self.compiler
.files_to_copy
.add
(tryfile
)
1687 # Return a new local runtime_variable initialized with the C expression `cexpr`.
1688 fun new_expr
(cexpr
: String, mtype
: MType): RuntimeVariable
1690 var res
= new_var
(mtype
)
1691 self.add
("{res} = {cexpr};")
1695 # Generate generic abort
1696 # used by aborts, asserts, casts, etc.
1697 fun add_abort
(message
: String)
1699 self.add
("PRINT_ERROR(\"Runtime error
: %s\
", \"{message.escape_to_c}\
");")
1705 if self.current_node
!= null and self.current_node
.location
.file
!= null and
1706 self.current_node
.location
.file
.mmodule
!= null then
1707 var f
= "FILE_{self.current_node.location.file.mmodule.c_name}"
1708 self.require_declaration
(f
)
1709 self.add
("PRINT_ERROR(\" (%s
:%d
)\\n\
", {f}, {current_node.location.line_start});")
1711 self.add
("PRINT_ERROR(\"\\n\
");")
1713 self.add
("fatal_exit(1);")
1716 # Add a dynamic cast
1717 fun add_cast
(value
: RuntimeVariable, mtype
: MType, tag
: String)
1719 var res
= self.type_test
(value
, mtype
, tag
)
1720 self.add
("if (unlikely(!{res})) \{")
1721 var cn
= self.class_name_string
(value
)
1722 self.add
("PRINT_ERROR(\"Runtime error
: Cast failed
. Expected `%s`, got
`%s`\
", \"{mtype.to_s.escape_to_c}\
", {cn});")
1727 # Generate a return with the value `s`
1728 fun ret
(s
: RuntimeVariable)
1730 self.assign
(self.frame
.returnvar
.as(not null), s
)
1731 self.add
("goto {self.frame.returnlabel.as(not null)};")
1734 # Compile a statement (if any)
1735 fun stmt
(nexpr
: nullable AExpr)
1737 if nexpr
== null then return
1738 if nexpr
.is_broken
then
1739 # Untyped expression.
1740 # Might mean dead code or invalid code
1742 add_abort
("FATAL: bad statement executed.")
1746 var narray
= nexpr
.comprehension
1747 if narray
!= null then
1748 var recv
= frame
.comprehension
.as(not null)
1749 var val
= expr
(nexpr
, narray
.element_mtype
)
1750 compile_callsite
(narray
.push_callsite
.as(not null), [recv
, val
])
1754 var old
= self.current_node
1755 self.current_node
= nexpr
1757 self.current_node
= old
1760 # Compile an expression an return its result
1761 # `mtype` is the expected return type, pass null if no specific type is expected.
1762 fun expr
(nexpr
: AExpr, mtype
: nullable MType): RuntimeVariable
1764 var old
= self.current_node
1765 self.current_node
= nexpr
1768 if nexpr
.mtype
!= null then
1769 res
= nexpr
.expr
(self)
1773 # Untyped expression.
1774 # Might mean dead code or invalid code.
1776 add_abort
("FATAL: bad expression executed.")
1777 # and return a placebo result to please the C compiler
1778 if mtype
== null then mtype
= compiler
.mainmodule
.object_type
1779 res
= new_var
(mtype
)
1781 self.current_node
= old
1785 if mtype
!= null then
1786 mtype
= self.anchor
(mtype
)
1787 res
= self.autobox
(res
, mtype
)
1789 res
= autoadapt
(res
, nexpr
.mtype
.as(not null))
1790 var implicit_cast_to
= nexpr
.implicit_cast_to
1791 if implicit_cast_to
!= null and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_autocast
.value
then
1792 add_cast
(res
, implicit_cast_to
, "auto")
1793 res
= autoadapt
(res
, implicit_cast_to
)
1795 self.current_node
= old
1799 # Alias for `self.expr(nexpr, self.bool_type)`
1800 fun expr_bool
(nexpr
: AExpr): RuntimeVariable do return expr
(nexpr
, bool_type
)
1802 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1803 fun debug
(message
: String)
1805 var node
= self.current_node
1806 if node
== null then
1807 print
"?: {message}"
1811 self.add
("/* DEBUG: {message} */")
1815 # A C function associated to a Nit method
1816 # Because of customization, a given Nit method can be compiler more that once
1817 abstract class AbstractRuntimeFunction
1819 type COMPILER: AbstractCompiler
1820 type VISITOR: AbstractCompilerVisitor
1822 # The associated Nit method
1823 var mmethoddef
: MMethodDef
1825 # The mangled c name of the runtime_function
1826 # Subclasses should redefine `build_c_name` instead
1829 var res
= self.c_name_cache
1830 if res
!= null then return res
1831 res
= self.build_c_name
1832 self.c_name_cache
= res
1836 # Non cached version of `c_name`
1837 protected fun build_c_name
: String is abstract
1839 protected var c_name_cache
: nullable String = null is writable
1841 # Implements a call of the runtime_function
1842 # May inline the body or generate a C function call
1843 fun call
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1845 # Generate the code for the `AbstractRuntimeFunction`
1846 # Warning: compile more than once compilation makes CC unhappy
1847 fun compile_to_c
(compiler
: COMPILER) is abstract
1850 # A runtime variable hold a runtime value in C.
1851 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1853 # 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.
1854 class RuntimeVariable
1855 # The name of the variable in the C code
1858 # The static type of the variable (as declard in C)
1861 # The current casted type of the variable (as known in Nit)
1862 var mcasttype
: MType is writable
1864 # If the variable exaclty a mcasttype?
1865 # false (usual value) means that the variable is a mcasttype or a subtype.
1866 var is_exact
: Bool = false is writable
1870 assert not mtype
.need_anchor
1871 assert not mcasttype
.need_anchor
1874 redef fun to_s
do return name
1879 if self.is_exact
then
1880 exact_str
= " exact"
1885 if self.mtype
== self.mcasttype
then
1886 type_str
= "{mtype}{exact_str}"
1888 type_str
= "{mtype}({mcasttype}{exact_str})"
1890 return "<{name}:{type_str}>"
1894 # The static context of a visited property in a `AbstractCompilerVisitor`
1897 type VISITOR: AbstractCompilerVisitor
1899 # The associated visitor
1900 var visitor
: VISITOR
1902 # The executed property.
1903 # A Method in case of a call, an attribute in case of a default initialization.
1904 var mpropdef
: MPropDef
1906 # The static type of the receiver
1907 var receiver
: MClassType
1909 # Arguments of the method (the first is the receiver)
1910 var arguments
: Array[RuntimeVariable]
1912 # The runtime_variable associated to the return (in a function)
1913 var returnvar
: nullable RuntimeVariable = null is writable
1915 # The label at the end of the property
1916 var returnlabel
: nullable String = null is writable
1918 # Labels associated to a each escapemarks.
1919 # Because of inlinings, escape-marks must be associated to their context (the frame)
1920 private var escapemark_names
= new HashMap[EscapeMark, String]
1922 # The array comprehension currently filled, if any
1923 private var comprehension
: nullable RuntimeVariable = null
1927 # Return the C type associated to a given Nit static type
1928 fun ctype
: String do return "val*"
1930 # C type outside of the compiler code and in boxes
1931 fun ctype_extern
: String do return "val*"
1933 # Short name of the `ctype` to use in unions
1934 fun ctypename
: String do return "val"
1936 # Is the associated C type a primitive one?
1938 # ENSURE `result == (ctype != "val*")`
1939 fun is_c_primitive
: Bool do return false
1942 redef class MClassType
1944 redef var ctype
is lazy
do
1945 if mclass
.name
== "Int" then
1947 else if mclass
.name
== "Bool" then
1949 else if mclass
.name
== "Char" then
1951 else if mclass
.name
== "Float" then
1953 else if mclass
.name
== "Int8" then
1955 else if mclass
.name
== "Byte" then
1956 return "unsigned char"
1957 else if mclass
.name
== "Int16" then
1959 else if mclass
.name
== "UInt16" then
1961 else if mclass
.name
== "Int32" then
1963 else if mclass
.name
== "UInt32" then
1965 else if mclass
.name
== "NativeString" then
1967 else if mclass
.name
== "NativeArray" then
1974 redef var is_c_primitive
is lazy
do return ctype
!= "val*"
1976 redef fun ctype_extern
: String
1978 if mclass
.kind
== extern_kind
then
1985 redef fun ctypename
: String
1987 if mclass
.name
== "Int" then
1989 else if mclass
.name
== "Bool" then
1991 else if mclass
.name
== "Char" then
1993 else if mclass
.name
== "Float" then
1995 else if mclass
.name
== "Int8" then
1997 else if mclass
.name
== "Byte" then
1999 else if mclass
.name
== "Int16" then
2001 else if mclass
.name
== "UInt16" then
2003 else if mclass
.name
== "Int32" then
2005 else if mclass
.name
== "UInt32" then
2007 else if mclass
.name
== "NativeString" then
2009 else if mclass
.name
== "NativeArray" then
2010 #return "{self.arguments.first.ctype}*"
2018 redef class MPropDef
2019 type VISITOR: AbstractCompilerVisitor
2022 redef class MMethodDef
2023 # Can the body be inlined?
2024 fun can_inline
(v
: VISITOR): Bool
2026 if is_abstract
then return true
2027 if constant_value
!= null then return true
2028 var modelbuilder
= v
.compiler
.modelbuilder
2029 var node
= modelbuilder
.mpropdef2node
(self)
2030 if node
isa APropdef then
2031 return node
.can_inline
2032 else if node
isa AClassdef then
2033 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
2040 # Inline the body in another visitor
2041 fun compile_inside_to_c
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
2043 var modelbuilder
= v
.compiler
.modelbuilder
2044 var val
= constant_value
2045 var node
= modelbuilder
.mpropdef2node
(self)
2048 var cn
= v
.class_name_string
(arguments
.first
)
2049 v
.current_node
= node
2050 v
.add
("PRINT_ERROR(\"Runtime error
: Abstract method
`%s` called on
`%s`\
", \"{mproperty.name.escape_to_c}\
", {cn});")
2055 if node
isa APropdef then
2056 var oldnode
= v
.current_node
2057 v
.current_node
= node
2058 self.compile_parameter_check
(v
, arguments
)
2059 node
.compile_to_c
(v
, self, arguments
)
2060 v
.current_node
= oldnode
2061 else if node
isa AClassdef then
2062 var oldnode
= v
.current_node
2063 v
.current_node
= node
2064 self.compile_parameter_check
(v
, arguments
)
2065 node
.compile_to_c
(v
, self, arguments
)
2066 v
.current_node
= oldnode
2067 else if val
!= null then
2068 v
.ret
(v
.value_instance
(val
))
2075 # Generate type checks in the C code to check covariant parameters
2076 fun compile_parameter_check
(v
: VISITOR, arguments
: Array[RuntimeVariable])
2078 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_covariance
.value
then return
2080 var msignature
= self.msignature
.as(not null)
2082 for i
in [0..msignature
.arity
[ do
2083 var mp
= msignature
.mparameters
[i
]
2084 # skip test for vararg since the array is instantiated with the correct polymorphic type
2085 if mp
.is_vararg
then continue
2087 # skip if the cast is not required
2088 var origmtype
= self.mproperty
.intro
.msignature
.mparameters
[i
].mtype
2089 if not origmtype
.need_anchor
then continue
2091 # get the parameter type
2092 var mtype
= mp
.mtype
2095 # note that v decides if and how to implements the cast
2096 v
.add
("/* Covariant cast for argument {i} ({mp.name}) {arguments[i+1].inspect} isa {mtype} */")
2097 v
.add_cast
(arguments
[i
+1], mtype
, "covariance")
2104 redef class APropdef
2105 fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
2107 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at
{location.to_s}\\n\
");")
2108 debug
("Not yet implemented")
2111 fun can_inline
: Bool do return true
2114 redef class AMethPropdef
2115 redef fun compile_to_c
(v
, mpropdef
, arguments
)
2117 # Call the implicit super-init
2118 var auto_super_inits
= self.auto_super_inits
2119 if auto_super_inits
!= null then
2120 var args
= [arguments
.first
]
2121 for auto_super_init
in auto_super_inits
do
2122 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2124 for i
in [0..auto_super_init
.msignature
.arity
+1[ do
2125 args
.add
(arguments
[i
])
2127 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2128 v
.compile_callsite
(auto_super_init
, args
)
2131 if auto_super_call
then
2132 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
2135 # Try special compilation
2136 if mpropdef
.is_intern
then
2137 if compile_intern_to_c
(v
, mpropdef
, arguments
) then return
2138 else if mpropdef
.is_extern
then
2139 if mpropdef
.mproperty
.is_init
then
2140 if compile_externinit_to_c
(v
, mpropdef
, arguments
) then return
2142 if compile_externmeth_to_c
(v
, mpropdef
, arguments
) then return
2146 # Compile block if any
2147 var n_block
= n_block
2148 if n_block
!= null then
2149 for i
in [0..mpropdef
.msignature
.arity
[ do
2150 var variable
= self.n_signature
.n_params
[i
].variable
.as(not null)
2151 v
.assign
(v
.variable
(variable
), arguments
[i
+1])
2158 var cn
= v
.class_name_string
(arguments
.first
)
2159 v
.add
("PRINT_ERROR(\"Runtime error
: uncompiled method
`%s` called on
`%s`. NOT YET IMPLEMENTED\
", \"{mpropdef.mproperty.name.escape_to_c}\
", {cn});")
2163 redef fun can_inline
2165 if self.auto_super_inits
!= null then return false
2166 var nblock
= self.n_block
2167 if nblock
== null then return true
2168 if (mpropdef
.mproperty
.name
== "==" or mpropdef
.mproperty
.name
== "!=") and mpropdef
.mclassdef
.mclass
.name
== "Object" then return true
2169 if nblock
isa ABlockExpr and nblock
.n_expr
.length
== 0 then return true
2173 fun compile_intern_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
2175 var pname
= mpropdef
.mproperty
.name
2176 var cname
= mpropdef
.mclassdef
.mclass
.name
2177 var ret
= mpropdef
.msignature
.return_mtype
2179 ret
= v
.resolve_for
(ret
, arguments
.first
)
2181 if pname
!= "==" and pname
!= "!=" then
2182 v
.adapt_signature
(mpropdef
, arguments
)
2183 v
.unbox_signature_extern
(mpropdef
, arguments
)
2185 if cname
== "Int" then
2186 if pname
== "output" then
2187 v
.add
("printf(\"%ld\\n\
", {arguments.first});")
2189 else if pname
== "object_id" then
2190 v
.ret
(arguments
.first
)
2192 else if pname
== "+" then
2193 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2195 else if pname
== "-" then
2196 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2198 else if pname
== "unary -" then
2199 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2201 else if pname
== "unary +" then
2204 else if pname
== "*" then
2205 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2207 else if pname
== "/" then
2208 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2210 else if pname
== "%" then
2211 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2213 else if pname
== "==" then
2214 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2216 else if pname
== "!=" then
2217 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2218 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2220 else if pname
== "<" then
2221 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2223 else if pname
== ">" then
2224 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2226 else if pname
== "<=" then
2227 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2229 else if pname
== ">=" then
2230 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2232 else if pname
== "to_i8" then
2233 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2235 else if pname
== "to_i16" then
2236 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2238 else if pname
== "to_u16" then
2239 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2241 else if pname
== "to_i32" then
2242 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2244 else if pname
== "to_u32" then
2245 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2247 else if pname
== "to_f" then
2248 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2250 else if pname
== "to_b" then
2251 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2253 else if pname
== "code_point" then
2254 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2256 else if pname
== "&" then
2257 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2259 else if pname
== "|" then
2260 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2262 else if pname
== ">>" then
2263 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2265 else if pname
== "<<" then
2266 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2269 else if cname
== "Char" then
2270 if pname
== "object_id" then
2271 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2273 else if pname
== "successor" then
2274 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2276 else if pname
== "predecessor" then
2277 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2279 else if pname
== "==" then
2280 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2282 else if pname
== "!=" then
2283 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2284 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2286 else if pname
== "<" then
2287 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2289 else if pname
== ">" then
2290 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2292 else if pname
== "<=" then
2293 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2295 else if pname
== ">=" then
2296 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2298 else if pname
== "to_i" then
2299 v
.ret
(v
.new_expr
("{arguments[0]}-'0'", ret
.as(not null)))
2301 else if pname
== "code_point" then
2302 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2305 else if cname
== "Byte" then
2306 if pname
== "output" then
2307 v
.add
("printf(\"%x\\n\
", {arguments.first});")
2309 else if pname
== "object_id" then
2310 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2312 else if pname
== "+" then
2313 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2315 else if pname
== "-" then
2316 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2318 else if pname
== "unary -" then
2319 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2321 else if pname
== "unary +" then
2324 else if pname
== "*" then
2325 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2327 else if pname
== "/" then
2328 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2330 else if pname
== "%" then
2331 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2333 else if pname
== "==" then
2334 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2336 else if pname
== "!=" then
2337 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2338 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2340 else if pname
== "<" then
2341 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2343 else if pname
== ">" then
2344 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2346 else if pname
== "<=" then
2347 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2349 else if pname
== ">=" then
2350 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2352 else if pname
== ">>" then
2353 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2355 else if pname
== "<<" then
2356 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2358 else if pname
== "&" then
2359 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2361 else if pname
== "to_i" then
2362 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2364 else if pname
== "to_f" then
2365 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2367 else if pname
== "to_i8" then
2368 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2370 else if pname
== "to_i16" then
2371 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2373 else if pname
== "to_u16" then
2374 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2376 else if pname
== "to_i32" then
2377 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2379 else if pname
== "to_u32" then
2380 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2382 else if pname
== "ascii" then
2383 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2386 else if cname
== "Bool" then
2387 if pname
== "output" then
2388 v
.add
("printf({arguments.first}?\"true\\n\
":\"false\\n\
");")
2390 else if pname
== "object_id" then
2391 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2393 else if pname
== "==" then
2394 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2396 else if pname
== "!=" then
2397 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2398 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2401 else if cname
== "Float" then
2402 if pname
== "output" then
2403 v
.add
("printf(\"%f\\n\
", {arguments.first});")
2405 else if pname
== "object_id" then
2406 v
.ret
(v
.new_expr
("(double){arguments.first}", 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
== "unary -" then
2415 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2417 else if pname
== "unary +" then
2420 else if pname
== "succ" then
2421 v
.ret
(v
.new_expr
("{arguments[0]}+1", ret
.as(not null)))
2423 else if pname
== "prec" then
2424 v
.ret
(v
.new_expr
("{arguments[0]}-1", ret
.as(not null)))
2426 else if pname
== "*" then
2427 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2429 else if pname
== "/" then
2430 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2432 else if pname
== "==" then
2433 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2435 else if pname
== "!=" then
2436 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2437 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2439 else if pname
== "<" then
2440 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2442 else if pname
== ">" then
2443 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2445 else if pname
== "<=" then
2446 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2448 else if pname
== ">=" then
2449 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2451 else if pname
== "to_i" then
2452 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2454 else if pname
== "to_b" then
2455 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2457 else if pname
== "to_i8" then
2458 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2460 else if pname
== "to_i16" then
2461 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2463 else if pname
== "to_u16" then
2464 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2466 else if pname
== "to_i32" then
2467 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2469 else if pname
== "to_u32" then
2470 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2473 else if cname
== "NativeString" then
2474 if pname
== "[]" then
2475 v
.ret
(v
.new_expr
("(unsigned char)((int){arguments[0]}[{arguments[1]}])", ret
.as(not null)))
2477 else if pname
== "[]=" then
2478 v
.add
("{arguments[0]}[{arguments[1]}]=(unsigned char){arguments[2]};")
2480 else if pname
== "copy_to" then
2481 v
.add
("memmove({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
2483 else if pname
== "atoi" then
2484 v
.ret
(v
.new_expr
("atoi({arguments[0]});", ret
.as(not null)))
2486 else if pname
== "fast_cstring" then
2487 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2489 else if pname
== "new" then
2490 v
.ret
(v
.new_expr
("(char*)nit_alloc({arguments[1]})", ret
.as(not null)))
2493 else if cname
== "NativeArray" then
2494 v
.native_array_def
(pname
, ret
, arguments
)
2496 else if cname
== "Int8" then
2497 if pname
== "output" then
2498 v
.add
("printf(\"%\
"PRIi8 \"\\n\
", {arguments.first});")
2500 else if pname
== "object_id" then
2501 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2503 else if pname
== "+" then
2504 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2506 else if pname
== "-" then
2507 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2509 else if pname
== "unary -" then
2510 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2512 else if pname
== "unary +" then
2515 else if pname
== "*" then
2516 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2518 else if pname
== "/" then
2519 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2521 else if pname
== "%" then
2522 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", 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
== "==" then
2531 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2533 else if pname
== "!=" then
2534 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2535 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2537 else if pname
== "<" then
2538 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2540 else if pname
== ">" then
2541 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2543 else if pname
== "<=" then
2544 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2546 else if pname
== ">=" then
2547 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2549 else if pname
== "to_i" then
2550 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2552 else if pname
== "to_b" then
2553 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2555 else if pname
== "to_i16" then
2556 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2558 else if pname
== "to_u16" then
2559 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2561 else if pname
== "to_i32" then
2562 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2564 else if pname
== "to_u32" then
2565 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2567 else if pname
== "to_f" then
2568 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2570 else if pname
== "&" then
2571 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2573 else if pname
== "|" then
2574 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2576 else if pname
== "^" then
2577 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2579 else if pname
== "unary ~" then
2580 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2583 else if cname
== "Int16" then
2584 if pname
== "output" then
2585 v
.add
("printf(\"%\
"PRIi16 \"\\n\
", {arguments.first});")
2587 else if pname
== "object_id" then
2588 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2590 else if pname
== "+" then
2591 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2593 else if pname
== "-" then
2594 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2596 else if pname
== "unary -" then
2597 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2599 else if pname
== "unary +" then
2602 else if pname
== "*" then
2603 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2605 else if pname
== "/" then
2606 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2608 else if pname
== "%" then
2609 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2611 else if pname
== "<<" then
2612 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2614 else if pname
== ">>" then
2615 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2617 else if pname
== "==" then
2618 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2620 else if pname
== "!=" then
2621 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2622 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2624 else if pname
== "<" then
2625 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2627 else if pname
== ">" then
2628 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2630 else if pname
== "<=" then
2631 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2633 else if pname
== ">=" then
2634 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2636 else if pname
== "to_i" then
2637 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2639 else if pname
== "to_b" then
2640 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2642 else if pname
== "to_i8" then
2643 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2645 else if pname
== "to_u16" then
2646 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2648 else if pname
== "to_i32" then
2649 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2651 else if pname
== "to_u32" then
2652 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2654 else if pname
== "to_f" then
2655 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2657 else if pname
== "&" then
2658 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2660 else if pname
== "|" then
2661 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2663 else if pname
== "^" then
2664 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2666 else if pname
== "unary ~" then
2667 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2670 else if cname
== "UInt16" then
2671 if pname
== "output" then
2672 v
.add
("printf(\"%\
"PRIu16 \"\\n\
", {arguments.first});")
2674 else if pname
== "object_id" then
2675 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2677 else if pname
== "+" then
2678 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2680 else if pname
== "-" then
2681 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2683 else if pname
== "unary -" then
2684 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2686 else if pname
== "unary +" then
2689 else if pname
== "*" then
2690 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2692 else if pname
== "/" then
2693 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2695 else if pname
== "%" then
2696 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2698 else if pname
== "<<" then
2699 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2701 else if pname
== ">>" then
2702 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2704 else if pname
== "==" then
2705 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2707 else if pname
== "!=" then
2708 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2709 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2711 else if pname
== "<" then
2712 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2714 else if pname
== ">" then
2715 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2717 else if pname
== "<=" then
2718 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2720 else if pname
== ">=" then
2721 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2723 else if pname
== "to_i" then
2724 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2726 else if pname
== "to_b" then
2727 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2729 else if pname
== "to_i8" then
2730 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2732 else if pname
== "to_i16" then
2733 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2735 else if pname
== "to_i32" then
2736 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2738 else if pname
== "to_u32" then
2739 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2741 else if pname
== "to_f" then
2742 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2744 else if pname
== "&" then
2745 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2747 else if pname
== "|" then
2748 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2750 else if pname
== "^" then
2751 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2753 else if pname
== "unary ~" then
2754 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2757 else if cname
== "Int32" then
2758 if pname
== "output" then
2759 v
.add
("printf(\"%\
"PRIi32 \"\\n\
", {arguments.first});")
2761 else if pname
== "object_id" then
2762 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2764 else if pname
== "+" then
2765 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2767 else if pname
== "-" then
2768 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2770 else if pname
== "unary -" then
2771 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2773 else if pname
== "unary +" then
2776 else if pname
== "*" then
2777 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2779 else if pname
== "/" then
2780 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2782 else if pname
== "%" then
2783 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2785 else if pname
== "<<" then
2786 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2788 else if pname
== ">>" then
2789 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2791 else if pname
== "==" then
2792 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2794 else if pname
== "!=" then
2795 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2796 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2798 else if pname
== "<" then
2799 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2801 else if pname
== ">" then
2802 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2804 else if pname
== "<=" then
2805 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2807 else if pname
== ">=" then
2808 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2810 else if pname
== "to_i" then
2811 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2813 else if pname
== "to_b" then
2814 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2816 else if pname
== "to_i8" then
2817 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2819 else if pname
== "to_i16" then
2820 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2822 else if pname
== "to_u16" then
2823 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2825 else if pname
== "to_u32" then
2826 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2828 else if pname
== "to_f" then
2829 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2831 else if pname
== "&" then
2832 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2834 else if pname
== "|" then
2835 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2837 else if pname
== "^" then
2838 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2840 else if pname
== "unary ~" then
2841 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2844 else if cname
== "UInt32" then
2845 if pname
== "output" then
2846 v
.add
("printf(\"%\
"PRIu32 \"\\n\
", {arguments.first});")
2848 else if pname
== "object_id" then
2849 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2851 else if pname
== "+" then
2852 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2854 else if pname
== "-" then
2855 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2857 else if pname
== "unary -" then
2858 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2860 else if pname
== "unary +" then
2863 else if pname
== "*" then
2864 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2866 else if pname
== "/" then
2867 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2869 else if pname
== "%" then
2870 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2872 else if pname
== "<<" then
2873 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2875 else if pname
== ">>" then
2876 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2878 else if pname
== "==" then
2879 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2881 else if pname
== "!=" then
2882 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2883 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2885 else if pname
== "<" then
2886 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2888 else if pname
== ">" then
2889 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2891 else if pname
== "<=" then
2892 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2894 else if pname
== ">=" then
2895 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2897 else if pname
== "to_i" then
2898 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2900 else if pname
== "to_b" then
2901 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2903 else if pname
== "to_i8" then
2904 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2906 else if pname
== "to_i16" then
2907 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2909 else if pname
== "to_u16" then
2910 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2912 else if pname
== "to_i32" then
2913 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2915 else if pname
== "to_f" then
2916 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2918 else if pname
== "&" then
2919 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2921 else if pname
== "|" then
2922 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2924 else if pname
== "^" then
2925 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2927 else if pname
== "unary ~" then
2928 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2932 if pname
== "exit" then
2933 v
.add
("exit({arguments[1]});")
2935 else if pname
== "sys" then
2936 v
.ret
(v
.new_expr
("glob_sys", ret
.as(not null)))
2938 else if pname
== "calloc_string" then
2939 v
.ret
(v
.new_expr
("(char*)nit_alloc({arguments[1]})", ret
.as(not null)))
2941 else if pname
== "calloc_array" then
2942 v
.calloc_array
(ret
.as(not null), arguments
)
2944 else if pname
== "object_id" then
2945 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2947 else if pname
== "is_same_type" then
2948 v
.ret
(v
.is_same_type_test
(arguments
[0], arguments
[1]))
2950 else if pname
== "is_same_instance" then
2951 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2953 else if pname
== "output_class_name" then
2954 var nat
= v
.class_name_string
(arguments
.first
)
2955 v
.add
("printf(\"%s\\n\
", {nat});")
2957 else if pname
== "native_class_name" then
2958 var nat
= v
.class_name_string
(arguments
.first
)
2959 v
.ret
(v
.new_expr
("(char*){nat}", ret
.as(not null)))
2961 else if pname
== "force_garbage_collection" then
2962 v
.add
("nit_gcollect();")
2964 else if pname
== "native_argc" then
2965 v
.ret
(v
.new_expr
("glob_argc", ret
.as(not null)))
2967 else if pname
== "native_argv" then
2968 v
.ret
(v
.new_expr
("glob_argv[{arguments[1]}]", ret
.as(not null)))
2974 # Compile an extern method
2975 # Return `true` if the compilation was successful, `false` if a fall-back is needed
2976 fun compile_externmeth_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
2979 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
2980 if at
!= null and at
.n_args
.length
== 1 then
2981 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
2982 if externname
== null then return false
2986 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
2987 var res
: nullable RuntimeVariable = null
2988 var ret
= mpropdef
.msignature
.return_mtype
2990 ret
= v
.resolve_for
(ret
, arguments
.first
)
2991 res
= v
.new_var_extern
(ret
)
2993 v
.adapt_signature
(mpropdef
, arguments
)
2994 v
.unbox_signature_extern
(mpropdef
, arguments
)
2997 v
.add
("{externname}({arguments.join(", ")});")
2999 v
.add
("{res} = {externname}({arguments.join(", ")});")
3000 res
= v
.box_extern
(res
, ret
.as(not null))
3006 # Compile an extern factory
3007 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3008 fun compile_externinit_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3011 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3013 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3014 if externname
== null then return false
3018 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3019 v
.adapt_signature
(mpropdef
, arguments
)
3020 v
.unbox_signature_extern
(mpropdef
, arguments
)
3021 var ret
= arguments
.first
.mtype
3022 var res
= v
.new_var_extern
(ret
)
3026 v
.add
("{res} = {externname}({arguments.join(", ")});")
3027 res
= v
.box_extern
(res
, ret
)
3033 redef class AAttrPropdef
3034 redef fun can_inline
: Bool do return not is_lazy
3036 redef fun compile_to_c
(v
, mpropdef
, arguments
)
3038 if mpropdef
== mreadpropdef
then
3039 assert arguments
.length
== 1
3040 var recv
= arguments
.first
3044 var ret
= self.mtype
3045 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3046 var guard
= self.mlazypropdef
.mproperty
3048 set
= v
.isset_attribute
(self.mpropdef
.mproperty
, recv
)
3050 set
= v
.read_attribute
(guard
, recv
)
3052 v
.add
("if(likely({set})) \{")
3053 res
= v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3056 var value
= evaluate_expr
(v
, recv
)
3058 v
.assign
(res
, value
)
3060 var true_v
= v
.bool_instance
(true)
3061 v
.write_attribute
(guard
, arguments
.first
, true_v
)
3065 res
= v
.read_attribute
(self.mpropdef
.mproperty
, arguments
.first
)
3067 v
.assign
(v
.frame
.returnvar
.as(not null), res
)
3068 else if mpropdef
== mwritepropdef
then
3069 assert arguments
.length
== 2
3070 v
.write_attribute
(self.mpropdef
.mproperty
, arguments
.first
, arguments
[1])
3072 var ret
= self.mtype
3073 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3075 v
.write_attribute
(self.mlazypropdef
.mproperty
, arguments
.first
, v
.bool_instance
(true))
3083 fun init_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3085 if has_value
and not is_lazy
and not n_expr
isa ANullExpr then evaluate_expr
(v
, recv
)
3088 # Evaluate, store and return the default value of the attribute
3089 private fun evaluate_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable): RuntimeVariable
3091 var oldnode
= v
.current_node
3092 v
.current_node
= self
3093 var old_frame
= v
.frame
3094 var frame
= new StaticFrame(v
, self.mreadpropdef
.as(not null), recv
.mcasttype
.undecorate
.as(MClassType), [recv
])
3098 var mtype
= self.mtype
3099 assert mtype
!= null
3101 var nexpr
= self.n_expr
3102 var nblock
= self.n_block
3103 if nexpr
!= null then
3104 value
= v
.expr
(nexpr
, mtype
)
3105 else if nblock
!= null then
3106 value
= v
.new_var
(mtype
)
3107 frame
.returnvar
= value
3108 frame
.returnlabel
= v
.get_name
("RET_LABEL")
3111 v
.add
("{frame.returnlabel.as(not null)}:(void)0;")
3117 v
.write_attribute
(self.mpropdef
.mproperty
, recv
, value
)
3120 v
.current_node
= oldnode
3125 fun check_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3127 var nexpr
= self.n_expr
3128 if nexpr
!= null then return
3130 var oldnode
= v
.current_node
3131 v
.current_node
= self
3132 var old_frame
= v
.frame
3133 var frame
= new StaticFrame(v
, self.mpropdef
.as(not null), recv
.mtype
.as(MClassType), [recv
])
3135 # Force read to check the initialization
3136 v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3138 v
.current_node
= oldnode
3142 redef class AClassdef
3143 private fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
3145 if mpropdef
== self.mfree_init
then
3146 assert mpropdef
.mproperty
.is_root_init
3147 assert arguments
.length
== 1
3148 if not mpropdef
.is_intro
then
3149 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
3159 # Try to compile self as an expression
3160 # Do not call this method directly, use `v.expr` instead
3161 private fun expr
(v
: AbstractCompilerVisitor): nullable RuntimeVariable
3163 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\
");")
3164 var mtype
= self.mtype
3165 if mtype
== null then
3168 var res
= v
.new_var
(mtype
)
3169 v
.add
("/* {res} = NOT YET {class_name} */")
3174 # Try to compile self as a statement
3175 # Do not call this method directly, use `v.stmt` instead
3176 private fun stmt
(v
: AbstractCompilerVisitor)
3182 redef class ABlockExpr
3185 for e
in self.n_expr
do v
.stmt
(e
)
3189 var last
= self.n_expr
.last
3190 for e
in self.n_expr
do
3191 if e
== last
then break
3194 return v
.expr
(last
, null)
3198 redef class AVardeclExpr
3201 var variable
= self.variable
.as(not null)
3202 var ne
= self.n_expr
3204 var i
= v
.expr
(ne
, variable
.declared_type
)
3205 v
.assign
(v
.variable
(variable
), i
)
3210 redef class AVarExpr
3213 var res
= v
.variable
(self.variable
.as(not null))
3214 var mtype
= self.mtype
.as(not null)
3215 return v
.autoadapt
(res
, mtype
)
3219 redef class AVarAssignExpr
3222 var variable
= self.variable
.as(not null)
3223 var i
= v
.expr
(self.n_value
, variable
.declared_type
)
3224 v
.assign
(v
.variable
(variable
), i
)
3229 redef class AVarReassignExpr
3232 var variable
= self.variable
.as(not null)
3233 var vari
= v
.variable
(variable
)
3234 var value
= v
.expr
(self.n_value
, variable
.declared_type
)
3235 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [vari
, value
])
3237 v
.assign
(v
.variable
(variable
), res
)
3241 redef class ASelfExpr
3242 redef fun expr
(v
) do return v
.frame
.arguments
.first
3245 redef class AImplicitSelfExpr
3246 redef fun expr
(v
) do
3247 if not is_sys
then return super
3248 return v
.new_expr
("glob_sys", mtype
.as(not null))
3252 redef class AEscapeExpr
3253 redef fun stmt
(v
) do v
.add
("goto BREAK_{v.escapemark_name(self.escapemark)};")
3256 redef class AReturnExpr
3259 var nexpr
= self.n_expr
3260 if nexpr
!= null then
3261 var returnvar
= v
.frame
.returnvar
.as(not null)
3262 var i
= v
.expr
(nexpr
, returnvar
.mtype
)
3263 v
.assign
(returnvar
, i
)
3265 v
.add
("goto {v.frame.returnlabel.as(not null)};")
3269 redef class AAbortExpr
3270 redef fun stmt
(v
) do v
.add_abort
("Aborted")
3276 var cond
= v
.expr_bool
(self.n_expr
)
3277 v
.add
("if ({cond})\{")
3286 var res
= v
.new_var
(self.mtype
.as(not null))
3287 var cond
= v
.expr_bool
(self.n_expr
)
3288 v
.add
("if ({cond})\{")
3289 v
.assign
(res
, v
.expr
(self.n_then
.as(not null), null))
3291 v
.assign
(res
, v
.expr
(self.n_else
.as(not null), null))
3297 redef class AIfexprExpr
3300 var res
= v
.new_var
(self.mtype
.as(not null))
3301 var cond
= v
.expr_bool
(self.n_expr
)
3302 v
.add
("if ({cond})\{")
3303 v
.assign
(res
, v
.expr
(self.n_then
, null))
3305 v
.assign
(res
, v
.expr
(self.n_else
, null))
3314 v
.stmt
(self.n_block
)
3315 v
.add_escape_label
(break_mark
)
3319 redef class AWhileExpr
3323 var cond
= v
.expr_bool
(self.n_expr
)
3324 v
.add
("if (!{cond}) break;")
3325 v
.stmt
(self.n_block
)
3326 v
.add_escape_label
(continue_mark
)
3328 v
.add_escape_label
(break_mark
)
3332 redef class ALoopExpr
3336 v
.stmt
(self.n_block
)
3337 v
.add_escape_label
(continue_mark
)
3339 v
.add_escape_label
(break_mark
)
3343 redef class AForExpr
3346 for g
in n_groups
do
3347 var cl
= v
.expr
(g
.n_expr
, null)
3348 var it_meth
= g
.method_iterator
3349 assert it_meth
!= null
3350 var it
= v
.compile_callsite
(it_meth
, [cl
])
3355 for g
in n_groups
do
3357 var isok_meth
= g
.method_is_ok
3358 assert isok_meth
!= null
3359 var ok
= v
.compile_callsite
(isok_meth
, [it
])
3361 v
.add
("if(!{ok}) break;")
3362 if g
.variables
.length
== 1 then
3363 var item_meth
= g
.method_item
3364 assert item_meth
!= null
3365 var i
= v
.compile_callsite
(item_meth
, [it
])
3367 v
.assign
(v
.variable
(g
.variables
.first
), i
)
3368 else if g
.variables
.length
== 2 then
3369 var key_meth
= g
.method_key
3370 assert key_meth
!= null
3371 var i
= v
.compile_callsite
(key_meth
, [it
])
3373 v
.assign
(v
.variable
(g
.variables
[0]), i
)
3374 var item_meth
= g
.method_item
3375 assert item_meth
!= null
3376 i
= v
.compile_callsite
(item_meth
, [it
])
3378 v
.assign
(v
.variable
(g
.variables
[1]), i
)
3383 v
.stmt
(self.n_block
)
3384 v
.add_escape_label
(continue_mark
)
3385 for g
in n_groups
do
3386 var next_meth
= g
.method_next
3387 assert next_meth
!= null
3388 v
.compile_callsite
(next_meth
, [g
.it
])
3391 v
.add_escape_label
(break_mark
)
3393 for g
in n_groups
do
3394 var method_finish
= g
.method_finish
3395 if method_finish
!= null then
3396 # TODO: Find a way to call this also in long escape (e.g. return)
3397 v
.compile_callsite
(method_finish
, [g
.it
])
3403 redef class AForGroup
3404 # C variable representing the iterator
3405 private var it
: RuntimeVariable is noinit
3408 redef class AAssertExpr
3411 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return
3413 var cond
= v
.expr_bool
(self.n_expr
)
3414 v
.add
("if (unlikely(!{cond})) \{")
3418 v
.add_abort
("Assert '{nid.text}' failed")
3420 v
.add_abort
("Assert failed")
3429 var res
= v
.new_var
(self.mtype
.as(not null))
3430 var i1
= v
.expr_bool
(self.n_expr
)
3431 v
.add
("if ({i1}) \{")
3434 var i2
= v
.expr_bool
(self.n_expr2
)
3435 v
.add
("{res} = {i2};")
3441 redef class AImpliesExpr
3444 var res
= v
.new_var
(self.mtype
.as(not null))
3445 var i1
= v
.expr_bool
(self.n_expr
)
3446 v
.add
("if (!{i1}) \{")
3449 var i2
= v
.expr_bool
(self.n_expr2
)
3450 v
.add
("{res} = {i2};")
3456 redef class AAndExpr
3459 var res
= v
.new_var
(self.mtype
.as(not null))
3460 var i1
= v
.expr_bool
(self.n_expr
)
3461 v
.add
("if (!{i1}) \{")
3464 var i2
= v
.expr_bool
(self.n_expr2
)
3465 v
.add
("{res} = {i2};")
3471 redef class ANotExpr
3474 var cond
= v
.expr_bool
(self.n_expr
)
3475 return v
.new_expr
("!{cond}", self.mtype
.as(not null))
3479 redef class AOrElseExpr
3482 var res
= v
.new_var
(self.mtype
.as(not null))
3483 var i1
= v
.expr
(self.n_expr
, null)
3484 v
.add
("if ({i1}!=NULL) \{")
3487 var i2
= v
.expr
(self.n_expr2
, null)
3494 redef class AIntegerExpr
3495 redef fun expr
(v
) do
3496 if value
isa Int then return v
.int_instance
(value
.as(Int))
3497 if value
isa Byte then return v
.byte_instance
(value
.as(Byte))
3498 if value
isa Int8 then return v
.int8_instance
(value
.as(Int8))
3499 if value
isa Int16 then return v
.int16_instance
(value
.as(Int16))
3500 if value
isa UInt16 then return v
.uint16_instance
(value
.as(UInt16))
3501 if value
isa Int32 then return v
.int32_instance
(value
.as(Int32))
3502 if value
isa UInt32 then return v
.uint32_instance
(value
.as(UInt32))
3503 # Should never happen
3508 redef class AFloatExpr
3509 redef fun expr
(v
) do return v
.float_instance
("{self.n_float.text}") # FIXME use value, not n_float
3512 redef class ACharExpr
3513 redef fun expr
(v
) do return v
.char_instance
(self.value
.as(not null))
3516 redef class AArrayExpr
3519 var mtype
= self.element_mtype
.as(not null)
3520 var array
= new Array[RuntimeVariable]
3521 var res
= v
.array_instance
(array
, mtype
)
3523 var old_comprehension
= v
.frame
.comprehension
3524 v
.frame
.comprehension
= res
3525 for nexpr
in self.n_exprs
do
3528 v
.frame
.comprehension
= old_comprehension
3534 redef class AStringFormExpr
3535 redef fun expr
(v
) do return v
.string_instance
(self.value
.as(not null))
3538 redef class ASuperstringExpr
3541 var type_string
= mtype
.as(not null)
3543 # Collect elements of the superstring
3544 var array
= new Array[AExpr]
3545 for ne
in self.n_exprs
do
3546 # Drop literal empty string.
3547 # They appears in things like "{a}" that is ["", a, ""]
3548 if ne
isa AStringFormExpr and ne
.value
== "" then continue # skip empty sub-strings
3552 # Store the allocated native array in a static variable
3554 var varonce
= v
.get_name
("varonce")
3555 v
.add
("if (unlikely({varonce}==NULL)) \{")
3557 # The native array that will contains the elements to_s-ized.
3558 # For fast concatenation.
3559 var a
= v
.native_array_instance
(type_string
, v
.int_instance
(array
.length
))
3561 v
.add_decl
("static {a.mtype.ctype} {varonce};")
3563 # Pre-fill the array with the literal string parts.
3564 # So they do not need to be filled again when reused
3565 for i
in [0..array
.length
[ do
3567 if not ne
isa AStringFormExpr then continue
3568 var e
= v
.expr
(ne
, null)
3569 v
.native_array_set
(a
, i
, e
)
3573 # Take the native-array from the store.
3574 # The point is to prevent that some recursive execution use (and corrupt) the same native array
3575 # WARNING: not thread safe! (FIXME?)
3576 v
.add
("{a} = {varonce};")
3577 v
.add
("{varonce} = NULL;")
3580 # Stringify the elements and put them in the native array
3581 var to_s_method
= v
.get_property
("to_s", v
.object_type
)
3582 for i
in [0..array
.length
[ do
3584 if ne
isa AStringFormExpr then continue
3585 var e
= v
.expr
(ne
, null)
3586 # Skip the `to_s` if the element is already a String
3587 if not e
.mcasttype
.is_subtype
(v
.compiler
.mainmodule
, null, type_string
) then
3588 e
= v
.send
(to_s_method
, [e
]).as(not null)
3590 v
.native_array_set
(a
, i
, e
)
3593 # Fast join the native string to get the result
3594 var res
= v
.send
(v
.get_property
("native_to_s", a
.mtype
), [a
])
3596 # We finish to work with the native array,
3597 # so store it so that it can be reused
3598 v
.add
("{varonce} = {a};")
3603 redef class ACrangeExpr
3606 var i1
= v
.expr
(self.n_expr
, null)
3607 var i2
= v
.expr
(self.n_expr2
, null)
3608 var mtype
= self.mtype
.as(MClassType)
3609 var res
= v
.init_instance
(mtype
)
3610 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3615 redef class AOrangeExpr
3618 var i1
= v
.expr
(self.n_expr
, null)
3619 var i2
= v
.expr
(self.n_expr2
, null)
3620 var mtype
= self.mtype
.as(MClassType)
3621 var res
= v
.init_instance
(mtype
)
3622 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3627 redef class ATrueExpr
3628 redef fun expr
(v
) do return v
.bool_instance
(true)
3631 redef class AFalseExpr
3632 redef fun expr
(v
) do return v
.bool_instance
(false)
3635 redef class ANullExpr
3636 redef fun expr
(v
) do return v
.null_instance
3639 redef class AIsaExpr
3642 var i
= v
.expr
(self.n_expr
, null)
3643 var cast_type
= self.cast_type
3644 if cast_type
== null then return null # no-no on broken node
3645 return v
.type_test
(i
, cast_type
, "isa")
3649 redef class AAsCastExpr
3652 var i
= v
.expr
(self.n_expr
, null)
3653 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3655 v
.add_cast
(i
, self.mtype
.as(not null), "as")
3660 redef class AAsNotnullExpr
3663 var i
= v
.expr
(self.n_expr
, null)
3664 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3666 if i
.mtype
.is_c_primitive
then return i
3668 v
.add
("if (unlikely({i} == NULL)) \{")
3669 v
.add_abort
("Cast failed")
3675 redef class AParExpr
3676 redef fun expr
(v
) do return v
.expr
(self.n_expr
, null)
3679 redef class AOnceExpr
3682 var mtype
= self.mtype
.as(not null)
3683 var name
= v
.get_name
("varonce")
3684 var guard
= v
.get_name
(name
+ "_guard")
3685 v
.add_decl
("static {mtype.ctype} {name};")
3686 v
.add_decl
("static int {guard};")
3687 var res
= v
.new_var
(mtype
)
3688 v
.add
("if (likely({guard})) \{")
3689 v
.add
("{res} = {name};")
3691 var i
= v
.expr
(self.n_expr
, mtype
)
3692 v
.add
("{res} = {i};")
3693 v
.add
("{name} = {res};")
3694 v
.add
("{guard} = 1;")
3700 redef class ASendExpr
3703 var recv
= v
.expr
(self.n_expr
, null)
3704 var callsite
= self.callsite
.as(not null)
3705 if callsite
.is_broken
then return null
3706 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3707 return v
.compile_callsite
(callsite
, args
)
3711 redef class ASendReassignFormExpr
3714 var recv
= v
.expr
(self.n_expr
, null)
3715 var callsite
= self.callsite
.as(not null)
3716 if callsite
.is_broken
then return
3717 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3719 var value
= v
.expr
(self.n_value
, null)
3721 var left
= v
.compile_callsite
(callsite
, args
)
3724 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [left
, value
])
3728 v
.compile_callsite
(self.write_callsite
.as(not null), args
)
3732 redef class ASuperExpr
3735 var frame
= v
.frame
.as(not null)
3736 var recv
= frame
.arguments
.first
3738 var callsite
= self.callsite
3739 if callsite
!= null then
3740 if callsite
.is_broken
then return null
3743 if self.n_args
.n_exprs
.is_empty
then
3744 # Add automatic arguments for the super init call
3746 for i
in [0..callsite
.msignature
.arity
[ do
3747 args
.add
(frame
.arguments
[i
+1])
3750 args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3754 var res
= v
.compile_callsite
(callsite
, args
)
3758 var mpropdef
= self.mpropdef
.as(not null)
3761 if self.n_args
.n_exprs
.is_empty
then
3762 args
= frame
.arguments
3764 args
= v
.varargize
(mpropdef
, signaturemap
, recv
, self.n_args
.n_exprs
)
3767 # Standard call-next-method
3768 return v
.supercall
(mpropdef
, recv
.mtype
.as(MClassType), args
)
3772 redef class ANewExpr
3775 var mtype
= self.recvtype
3776 assert mtype
!= null
3778 if mtype
.mclass
.name
== "NativeArray" then
3779 assert self.n_args
.n_exprs
.length
== 1
3780 var l
= v
.expr
(self.n_args
.n_exprs
.first
, null)
3781 assert mtype
isa MGenericType
3782 var elttype
= mtype
.arguments
.first
3783 return v
.native_array_instance
(elttype
, l
)
3786 var recv
= v
.init_instance_or_extern
(mtype
)
3788 var callsite
= self.callsite
3789 if callsite
== null then return recv
3790 if callsite
.is_broken
then return null
3792 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3793 var res2
= v
.compile_callsite
(callsite
, args
)
3794 if res2
!= null then
3795 #self.debug("got {res2} from {mproperty}. drop {recv}")
3802 redef class AAttrExpr
3805 var recv
= v
.expr
(self.n_expr
, null)
3806 var mproperty
= self.mproperty
.as(not null)
3807 return v
.read_attribute
(mproperty
, recv
)
3811 redef class AAttrAssignExpr
3814 var recv
= v
.expr
(self.n_expr
, null)
3815 var i
= v
.expr
(self.n_value
, null)
3816 var mproperty
= self.mproperty
.as(not null)
3817 v
.write_attribute
(mproperty
, recv
, i
)
3822 redef class AAttrReassignExpr
3825 var recv
= v
.expr
(self.n_expr
, null)
3826 var value
= v
.expr
(self.n_value
, null)
3827 var mproperty
= self.mproperty
.as(not null)
3828 var attr
= v
.read_attribute
(mproperty
, recv
)
3829 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [attr
, value
])
3831 v
.write_attribute
(mproperty
, recv
, res
)
3835 redef class AIssetAttrExpr
3838 var recv
= v
.expr
(self.n_expr
, null)
3839 var mproperty
= self.mproperty
.as(not null)
3840 return v
.isset_attribute
(mproperty
, recv
)
3844 redef class AVarargExpr
3847 return v
.expr
(self.n_expr
, null)
3851 redef class ANamedargExpr
3854 return v
.expr
(self.n_expr
, null)
3858 redef class ADebugTypeExpr
3867 redef class Array[E
]
3868 # Return a new `Array` with the elements only contened in self and not in `o`
3869 fun -(o
: Array[E
]): Array[E
] do
3870 var res
= new Array[E
]
3871 for e
in self do if not o
.has
(e
) then res
.add
(e
)
3877 # All `MProperty` associated to all `MClassDef` of `mclass`
3878 fun properties
(mclass
: MClass): Set[MProperty] do
3879 if not self.properties_cache
.has_key
(mclass
) then
3880 var properties
= new HashSet[MProperty]
3881 var parents
= new Array[MClass]
3882 if self.flatten_mclass_hierarchy
.has
(mclass
) then
3883 parents
.add_all
(mclass
.in_hierarchy
(self).direct_greaters
)
3885 for parent
in parents
do
3886 properties
.add_all
(self.properties
(parent
))
3888 for mclassdef
in mclass
.mclassdefs
do
3889 if not self.in_importation
<= mclassdef
.mmodule
then continue
3890 for mprop
in mclassdef
.intro_mproperties
do
3891 properties
.add
(mprop
)
3894 self.properties_cache
[mclass
] = properties
3896 return properties_cache
[mclass
]
3898 private var properties_cache
: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
3900 # Write FFI and nitni results to file
3901 fun finalize_ffi
(c
: AbstractCompiler) do end
3903 # Give requided addinional system libraries (as given to LD_LIBS)
3904 # Note: can return null instead of an empty set
3905 fun collect_linker_libs
: nullable Array[String] do return null
3908 # Create a tool context to handle options and paths
3909 var toolcontext
= new ToolContext
3911 toolcontext
.tooldescription
= "Usage: nitc [OPTION]... file.nit...\nCompiles Nit programs."
3913 # We do not add other options, so process them now!
3914 toolcontext
.process_options
(args
)
3916 # We need a model to collect stufs
3917 var model
= new Model
3918 # An a model builder to parse files
3919 var modelbuilder
= new ModelBuilder(model
, toolcontext
)
3921 var arguments
= toolcontext
.option_context
.rest
3922 if arguments
.length
> 1 and toolcontext
.opt_output
.value
!= null then
3923 print
"Option Error: --output needs a single source file. Do you prefer --dir?"
3927 # Here we load an process all modules passed on the command line
3928 var mmodules
= modelbuilder
.parse
(arguments
)
3930 if mmodules
.is_empty
then toolcontext
.quit
3932 modelbuilder
.run_phases
3934 for mmodule
in mmodules
do
3935 toolcontext
.info
("*** PROCESS {mmodule} ***", 1)
3937 toolcontext
.run_global_phases
(ms
)