1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2012 Jean Privat <jean@pryen.org>
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
18 module abstract_compiler
24 private import annotation
28 # Add compiling options
29 redef class ToolContext
31 var opt_output
= new OptionString("Filename of the generated executable", "-o", "--output")
33 var opt_dir
= new OptionString("Output directory", "--dir")
35 var opt_no_cc
= new OptionBool("Do not invoke the C compiler", "--no-cc")
37 var opt_no_main
= new OptionBool("Do not generate main entry point", "--no-main")
39 var opt_make_flags
= new OptionString("Additional options to the `make` command", "--make-flags")
41 var opt_max_c_lines
= new OptionInt("Maximum number of lines in generated C files. Use 0 for unlimited", 10000, "--max-c-lines")
43 var opt_group_c_files
= new OptionBool("Group all generated code in the same series of files", "--group-c-files")
45 var opt_compile_dir
= new OptionString("Directory used to generate temporary files", "--compile-dir")
47 var opt_hardening
= new OptionBool("Generate contracts in the C code against bugs in the compiler", "--hardening")
48 # --no-check-covariance
49 var opt_no_check_covariance
= new OptionBool("Disable type tests of covariant parameters (dangerous)", "--no-check-covariance")
50 # --no-check-attr-isset
51 var opt_no_check_attr_isset
= new OptionBool("Disable isset tests before each attribute access (dangerous)", "--no-check-attr-isset")
53 var opt_no_check_assert
= new OptionBool("Disable the evaluation of explicit `assert` and `as` (dangerous)", "--no-check-assert")
55 var opt_no_check_autocast
= new OptionBool("Disable implicit casts on unsafe expression usage (dangerous)", "--no-check-autocast")
57 var opt_no_check_null
= new OptionBool("Disable tests of null receiver (dangerous)", "--no-check-null")
59 var opt_no_check_all
= new OptionBool("Disable all tests (dangerous)", "--no-check-all")
60 # --typing-test-metrics
61 var opt_typing_test_metrics
= new OptionBool("Enable static and dynamic count of all type tests", "--typing-test-metrics")
62 # --invocation-metrics
63 var opt_invocation_metrics
= new OptionBool("Enable static and dynamic count of all method invocations", "--invocation-metrics")
64 # --isset-checks-metrics
65 var opt_isset_checks_metrics
= new OptionBool("Enable static and dynamic count of isset checks before attributes access", "--isset-checks-metrics")
67 var opt_no_stacktrace
= new OptionBool("Disable the generation of stack traces", "--no-stacktrace")
69 var opt_no_gcc_directive
= new OptionArray("Disable advanced gcc directives for optimization", "--no-gcc-directive")
71 var opt_release
= new OptionBool("Compile in release mode and finalize application", "--release")
73 var opt_debug
= new OptionBool("Compile in debug mode (no C-side optimization)", "-g", "--debug")
78 self.option_context
.add_option
(self.opt_output
, self.opt_dir
, self.opt_no_cc
, self.opt_no_main
, self.opt_make_flags
, self.opt_compile_dir
, self.opt_hardening
)
79 self.option_context
.add_option
(self.opt_no_check_covariance
, self.opt_no_check_attr_isset
, self.opt_no_check_assert
, self.opt_no_check_autocast
, self.opt_no_check_null
, self.opt_no_check_all
)
80 self.option_context
.add_option
(self.opt_typing_test_metrics
, self.opt_invocation_metrics
, self.opt_isset_checks_metrics
)
81 self.option_context
.add_option
(self.opt_no_stacktrace
)
82 self.option_context
.add_option
(self.opt_no_gcc_directive
)
83 self.option_context
.add_option
(self.opt_release
)
84 self.option_context
.add_option
(self.opt_max_c_lines
, self.opt_group_c_files
)
85 self.option_context
.add_option
(self.opt_debug
)
87 opt_no_main
.hidden
= true
90 redef fun process_options
(args
)
94 if opt_output
.value
!= null and opt_dir
.value
!= null then
95 print
"Option Error: cannot use both --dir and --output"
99 if opt_no_check_all
.value
then
100 opt_no_check_covariance
.value
= true
101 opt_no_check_attr_isset
.value
= true
102 opt_no_check_assert
.value
= true
103 opt_no_check_autocast
.value
= true
104 opt_no_check_null
.value
= true
109 redef class ModelBuilder
110 # Simple indirection to `Toolchain::write_and_make`
111 protected fun write_and_make
(compiler
: AbstractCompiler)
113 var platform
= compiler
.target_platform
114 var toolchain
= platform
.toolchain
(toolcontext
, compiler
)
115 compiler
.toolchain
= toolchain
116 toolchain
.write_and_make
121 # The specific tool-chain associated to the platform
122 fun toolchain
(toolcontext
: ToolContext, compiler
: AbstractCompiler): Toolchain
124 return new MakefileToolchain(toolcontext
, compiler
)
128 # Build toolchain for a specific target program, varies per `Platform`
132 var toolcontext
: ToolContext
134 # Compiler of the target program
135 var compiler
: AbstractCompiler
137 # Directory where to generate all files
139 # The option `--compile_dir` change this directory.
140 fun root_compile_dir
: String
142 var compile_dir
= toolcontext
.opt_compile_dir
.value
143 if compile_dir
== null then compile_dir
= "nit_compile"
147 # Directory where to generate all C files
149 # By default it is `root_compile_dir` but some platform may require that it is a subdirectory.
150 fun compile_dir
: String do return root_compile_dir
152 # Write all C files and compile them
153 fun write_and_make
is abstract
156 # Default toolchain using a Makefile
157 class MakefileToolchain
160 redef fun write_and_make
162 var debug
= toolcontext
.opt_debug
.value
163 var compile_dir
= compile_dir
165 # Remove the compilation directory unless explicitly set
166 var auto_remove
= toolcontext
.opt_compile_dir
.value
== null
167 # If debug flag is set, do not remove sources
168 if debug
then auto_remove
= false
170 # Generate the .h and .c files
171 # A single C file regroups many compiled rumtime functions
172 # Note that we do not try to be clever an a small change in a Nit source file may change the content of all the generated .c files
174 self.toolcontext
.info
("*** WRITING C ***", 1)
176 root_compile_dir
.mkdir
179 var cfiles
= new Array[String]
180 write_files
(compile_dir
, cfiles
)
182 # Generate the Makefile
184 write_makefile
(compile_dir
, cfiles
)
187 self.toolcontext
.info
("*** END WRITING C: {time1-time0} ***", 2)
189 # Execute the Makefile
191 if self.toolcontext
.opt_no_cc
.value
then return
194 self.toolcontext
.info
("*** COMPILING C ***", 1)
196 compile_c_code
(compile_dir
)
199 sys
.system
("rm -r -- '{root_compile_dir.escape_to_sh}/'")
203 self.toolcontext
.info
("*** END COMPILING C: {time1-time0} ***", 2)
206 # Write all source files to the `compile_dir`
207 fun write_files
(compile_dir
: String, cfiles
: Array[String])
209 var platform
= compiler
.target_platform
210 if platform
.supports_libunwind
then compiler
.build_c_to_nit_bindings
211 var cc_opt_with_libgc
= "-DWITH_LIBGC"
212 if not platform
.supports_libgc
then cc_opt_with_libgc
= ""
214 # Add gc_choser.h to aditionnal bodies
215 var gc_chooser
= new ExternCFile("gc_chooser.c", cc_opt_with_libgc
)
216 if cc_opt_with_libgc
!= "" then gc_chooser
.pkgconfigs
.add
"bdw-gc"
217 compiler
.extern_bodies
.add
(gc_chooser
)
218 var clib
= toolcontext
.nit_dir
/ "clib"
219 compiler
.files_to_copy
.add
"{clib}/gc_chooser.c"
220 compiler
.files_to_copy
.add
"{clib}/gc_chooser.h"
223 for m
in compiler
.mainmodule
.in_importation
.greaters
do
224 compiler
.finalize_ffi_for_module
(m
)
227 # Copy original .[ch] files to compile_dir
228 for src
in compiler
.files_to_copy
do
229 var basename
= src
.basename
230 var dst
= "{compile_dir}/{basename}"
234 var hfilename
= compiler
.header
.file
.name
+ ".h"
235 var hfilepath
= "{compile_dir}/{hfilename}"
236 var h
= new FileWriter.open
(hfilepath
)
237 for l
in compiler
.header
.decl_lines
do
241 for l
in compiler
.header
.lines
do
247 var max_c_lines
= toolcontext
.opt_max_c_lines
.value
248 for f
in compiler
.files
do
251 var file
: nullable FileWriter = null
252 for vis
in f
.writers
do
253 if vis
== compiler
.header
then continue
254 var total_lines
= vis
.lines
.length
+ vis
.decl_lines
.length
255 if total_lines
== 0 then continue
257 if file
== null or (count
> max_c_lines
and max_c_lines
> 0) then
259 if file
!= null then file
.close
260 var cfilename
= "{f.name}.{i}.c"
261 var cfilepath
= "{compile_dir}/{cfilename}"
262 self.toolcontext
.info
("new C source files to compile: {cfilepath}", 3)
263 cfiles
.add
(cfilename
)
264 file
= new FileWriter.open
(cfilepath
)
265 file
.write
"#include \"{f.name}.0.h\
"\n"
268 for l
in vis
.decl_lines
do
272 for l
in vis
.lines
do
277 if file
== null then continue
280 var cfilename
= "{f.name}.0.h"
281 var cfilepath
= "{compile_dir}/{cfilename}"
282 var hfile
: nullable FileWriter = null
283 hfile
= new FileWriter.open
(cfilepath
)
284 hfile
.write
"#include \"{hfilename}\
"\n"
285 for key
in f
.required_declarations
do
286 if not compiler
.provided_declarations
.has_key
(key
) then
287 var node
= compiler
.requirers_of_declarations
.get_or_null
(key
)
289 node
.debug
"No provided declaration for {key}"
291 print
"No provided declaration for {key}"
295 hfile
.write compiler
.provided_declarations
[key
]
301 self.toolcontext
.info
("Total C source files to compile: {cfiles.length}", 2)
304 # Get the name of the Makefile to use
305 fun makefile_name
: String do return "{compiler.mainmodule.c_name}.mk"
307 # Get the default name of the executable to produce
308 fun default_outname
: String
310 var mainmodule
= compiler
.mainmodule
.first_real_mmodule
311 return mainmodule
.name
314 # Combine options and platform informations to get the final path of the outfile
315 fun outfile
(mainmodule
: MModule): String
317 var res
= self.toolcontext
.opt_output
.value
318 if res
!= null then return res
319 res
= default_outname
320 var dir
= self.toolcontext
.opt_dir
.value
321 if dir
!= null then return dir
.join_path
(res
)
326 fun write_makefile
(compile_dir
: String, cfiles
: Array[String])
328 var mainmodule
= compiler
.mainmodule
329 var platform
= compiler
.target_platform
331 var outname
= outfile
(mainmodule
)
333 var real_outpath
= compile_dir
.relpath
(outname
)
334 var outpath
= real_outpath
.escape_to_mk
335 if outpath
!= real_outpath
then
336 # If the name is crazy and need escaping, we will do an indirection
337 # 1. generate the binary in the nit_compile dir under an escaped name
338 # 2. copy the binary at the right place in the `all` goal.
339 outpath
= mainmodule
.c_name
341 var makename
= makefile_name
342 var makepath
= "{compile_dir}/{makename}"
343 var makefile
= new FileWriter.open
(makepath
)
345 var linker_options
= new HashSet[String]
346 for m
in mainmodule
.in_importation
.greaters
do
347 var libs
= m
.collect_linker_libs
348 if libs
!= null then linker_options
.add_all
(libs
)
350 var debug
= toolcontext
.opt_debug
.value
352 makefile
.write
("CC = ccache cc\nCXX = ccache c++\nCFLAGS = -g{ if not debug then " -O2 " else " "}-Wno-unused-value -Wno-switch -Wno-attributes -Wno-trigraphs\nCINCL =\nLDFLAGS ?= \nLDLIBS ?= -lm {linker_options.join(" ")}\n\n")
354 makefile
.write
"\n# SPECIAL CONFIGURATION FLAGS\n"
355 if platform
.supports_libunwind
then
356 if toolcontext
.opt_no_stacktrace
.value
then
357 makefile
.write
"NO_STACKTRACE=True"
359 makefile
.write
"NO_STACKTRACE= # Set to `True` to enable"
363 # Dynamic adaptations
364 # While `platform` enable complex toolchains, they are statically applied
365 # For a dynamic adaptsation of the compilation, the generated Makefile should check and adapt things itself
366 makefile
.write
"\n\n"
368 # Check and adapt the targeted system
369 makefile
.write
("uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')\n")
371 # Check and adapt for the compiler used
372 # clang need an additionnal `-Qunused-arguments`
373 makefile
.write
("clang_check := $(shell sh -c '$(CC) -v 2>&1 | grep -q clang; echo $$?')\nifeq ($(clang_check), 0)\n\tCFLAGS += -Qunused-arguments\nendif\n")
375 if platform
.supports_libunwind
then
377 ifneq ($(NO_STACKTRACE), True)
378 # Check and include lib-unwind in a portable way
379 ifneq ($(uname_S),Darwin)
380 # already included on macosx, but need to get the correct flags in other supported platforms.
381 ifeq ($(shell pkg-config --exists 'libunwind'; echo $$?), 0)
382 LDLIBS += `pkg-config --libs libunwind`
383 CFLAGS += `pkg-config --cflags libunwind`
385 $(warning "[_] stack-traces disabled. Please install libunwind-dev.")
386 CFLAGS += -D NO_STACKTRACE
390 # Stacktraces disabled
391 CFLAGS += -D NO_STACKTRACE
396 makefile
.write
("CFLAGS += -D NO_STACKTRACE\n\n")
400 # Special configuration for Darwin
401 ifeq ($(uname_S),Darwin)
402 # Remove POSIX flag -lrt
403 LDLIBS := $(filter-out -lrt,$(LDLIBS))
408 makefile
.write
("all: {outpath}\n")
409 if outpath
!= real_outpath
then
410 makefile
.write
("\tcp -- {outpath.escape_to_sh} {real_outpath.escape_to_sh.replace("$","$$")}")
414 var ofiles
= new Array[String]
415 var dep_rules
= new Array[String]
416 # Compile each generated file
418 var o
= f
.strip_extension
(".c") + ".o"
419 makefile
.write
("{o}: {f}\n\t$(CC) $(CFLAGS) $(CINCL) -c -o {o} {f}\n\n")
424 # Generate linker script, if any
425 if not compiler
.linker_script
.is_empty
then
426 var linker_script_path
= "{compile_dir}/linker_script"
427 ofiles
.add
"linker_script"
428 var f
= new FileWriter.open
(linker_script_path
)
429 for l
in compiler
.linker_script
do
436 var java_files
= new Array[ExternFile]
438 var pkgconfigs
= new Array[String]
439 for f
in compiler
.extern_bodies
do
440 pkgconfigs
.add_all f
.pkgconfigs
443 if not pkgconfigs
.is_empty
then
445 # does pkg-config exists?
446 ifneq ($(shell which pkg-config >/dev/null; echo $$?), 0)
447 $(error "Command `pkg-config` not found. Please install it")
450 for p
in pkgconfigs
do
452 # Check for library {{{p}}}
453 ifneq ($(shell pkg-config --exists '{{{p}}}'; echo $$?), 0)
454 $(error "pkg-config: package {{{p}}} is not found.")
460 # Compile each required extern body into a specific .o
461 for f
in compiler
.extern_bodies
do
462 var o
= f
.makefile_rule_name
463 var ff
= f
.filename
.basename
464 makefile
.write
("{o}: {ff}\n")
465 makefile
.write
("\t{f.makefile_rule_content}\n\n")
466 dep_rules
.add
(f
.makefile_rule_name
)
468 if f
.compiles_to_o_file
then ofiles
.add
(o
)
469 if f
.add_to_jar
then java_files
.add
(f
)
472 if not java_files
.is_empty
then
473 var jar_file
= "{outpath}.jar"
475 var class_files_array
= new Array[String]
476 for f
in java_files
do class_files_array
.add
(f
.makefile_rule_name
)
477 var class_files
= class_files_array
.join
(" ")
479 makefile
.write
("{jar_file}: {class_files}\n")
480 makefile
.write
("\tjar cf {jar_file} {class_files}\n\n")
481 dep_rules
.add jar_file
486 if not pkgconfigs
.is_empty
then
487 pkg
= "`pkg-config --libs {pkgconfigs.join(" ")}`"
489 makefile
.write
("{outpath}: {dep_rules.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath.escape_to_sh} {ofiles.join(" ")} $(LDLIBS) {pkg}\n\n")
491 makefile
.write
("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n")
492 if outpath
!= real_outpath
then
493 makefile
.write
("\trm -- {outpath.escape_to_sh} 2>/dev/null\n")
496 self.toolcontext
.info
("Generated makefile: {makepath}", 2)
498 makepath
.file_copy_to
"{compile_dir}/Makefile"
501 # The C code is generated, compile it to an executable
502 fun compile_c_code
(compile_dir
: String)
504 var makename
= makefile_name
506 var makeflags
= self.toolcontext
.opt_make_flags
.value
507 if makeflags
== null then makeflags
= ""
509 var command
= "make -B -C {compile_dir} -f {makename} -j 4 {makeflags}"
510 self.toolcontext
.info
(command
, 2)
513 if self.toolcontext
.verbose_level
>= 3 then
514 res
= sys
.system
("{command} 2>&1")
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 Array[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>")
655 self.header
.add_decl
("#include <setjmp.h>\n")
656 self.header
.add_decl
("#include <sys/types.h>\n")
657 self.header
.add_decl
("#include <unistd.h>\n")
658 self.header
.add_decl
("#include <stdint.h>\n")
659 self.header
.add_decl
("#ifdef __linux__")
660 self.header
.add_decl
(" #include <endian.h>")
661 self.header
.add_decl
("#endif")
662 self.header
.add_decl
("#include <inttypes.h>\n")
663 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
664 self.header
.add_decl
("#ifdef __APPLE__")
665 self.header
.add_decl
(" #include <libkern/OSByteOrder.h>")
666 self.header
.add_decl
(" #define be32toh(x) OSSwapBigToHostInt32(x)")
667 self.header
.add_decl
("#endif")
668 self.header
.add_decl
("#ifdef __pnacl__")
669 self.header
.add_decl
(" #define be16toh(val) (((val) >> 8) | ((val) << 8))")
670 self.header
.add_decl
(" #define be32toh(val) ((be16toh((val) << 16) | (be16toh((val) >> 16))))")
671 self.header
.add_decl
("#endif")
672 self.header
.add_decl
("#ifdef ANDROID")
673 self.header
.add_decl
(" #ifndef be32toh")
674 self.header
.add_decl
(" #define be32toh(val) betoh32(val)")
675 self.header
.add_decl
(" #endif")
676 self.header
.add_decl
(" #include <android/log.h>")
677 self.header
.add_decl
(" #define PRINT_ERROR(...) (void)__android_log_print(ANDROID_LOG_WARN, \"Nit\
", __VA_ARGS__)")
678 self.header
.add_decl
("#else")
679 self.header
.add_decl
(" #define PRINT_ERROR(...) fprintf(stderr, __VA_ARGS__)")
680 self.header
.add_decl
("#endif")
682 compile_header_structs
683 compile_nitni_structs
686 var gccd_disable
= modelbuilder
.toolcontext
.opt_no_gcc_directive
.value
687 if gccd_disable
.has
("noreturn") or gccd_disable
.has
("all") then
688 # Signal handler function prototype
689 self.header
.add_decl
("void fatal_exit(int);")
691 self.header
.add_decl
("void fatal_exit(int) __attribute__ ((noreturn));")
694 if gccd_disable
.has
("likely") or gccd_disable
.has
("all") then
695 self.header
.add_decl
("#define likely(x) (x)")
696 self.header
.add_decl
("#define unlikely(x) (x)")
697 else if gccd_disable
.has
("correct-likely") then
698 # invert the `likely` definition
699 # Used by masochists to bench the worst case
700 self.header
.add_decl
("#define likely(x) __builtin_expect((x),0)")
701 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),1)")
703 self.header
.add_decl
("#define likely(x) __builtin_expect((x),1)")
704 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),0)")
707 # Global variable used by intern methods
708 self.header
.add_decl
("extern int glob_argc;")
709 self.header
.add_decl
("extern char **glob_argv;")
710 self.header
.add_decl
("extern val *glob_sys;")
713 # Stack stocking environment for longjumps
714 protected fun compile_catch_stack
do
715 self.header
.add_decl
"""
716 struct catch_stack_t {
720 extern struct catch_stack_t catchStack;
724 # Declaration of structures for live Nit types
725 protected fun compile_header_structs
is abstract
727 # Declaration of structures for nitni undelying the FFI
728 protected fun compile_nitni_structs
730 self.header
.add_decl
"""
731 /* Native reference to Nit objects */
732 /* This structure is used to represent every Nit type in extern methods and custom C code. */
734 struct nitni_ref *next,
735 *prev; /* adjacent global references in global list */
736 int count; /* number of time this global reference has been marked */
739 /* List of global references from C code to Nit objects */
740 /* Instanciated empty at init of Nit system and filled explicitly by user in C code */
741 struct nitni_global_ref_list_t {
742 struct nitni_ref *head, *tail;
744 extern struct nitni_global_ref_list_t *nitni_global_ref_list;
746 /* Initializer of global reference list */
747 extern void nitni_global_ref_list_init();
749 /* Intern function to add a global reference to the list */
750 extern void nitni_global_ref_add( struct nitni_ref *ref );
752 /* Intern function to remove a global reference from the list */
753 extern void nitni_global_ref_remove( struct nitni_ref *ref );
755 /* Increase count on an existing global reference */
756 extern void nitni_global_ref_incr( struct nitni_ref *ref );
758 /* Decrease count on an existing global reference */
759 extern void nitni_global_ref_decr( struct nitni_ref *ref );
763 fun compile_finalizer_function
765 var finalizable_type
= mainmodule
.finalizable_type
766 if finalizable_type
== null then return
768 var finalize_meth
= mainmodule
.try_get_primitive_method
("finalize", finalizable_type
.mclass
)
770 if finalize_meth
== null then
771 modelbuilder
.toolcontext
.error
(null, "Error: the `Finalizable` class does not declare the `finalize` method.")
775 var v
= self.new_visitor
776 v
.add_decl
"void gc_finalize (void *obj, void *client_data) \{"
777 var recv
= v
.new_expr
("obj", finalizable_type
)
778 v
.send
(finalize_meth
, [recv
])
782 # Hook to add specif piece of code before the the main C function.
784 # Is called by `compile_main_function`
785 fun compile_before_main
(v
: VISITOR)
789 # Hook to add specif piece of code at the begin on the main C function.
791 # Is called by `compile_main_function`
792 fun compile_begin_main
(v
: VISITOR)
796 # Generate the main C function.
800 # * allocate the Sys object if it exists
801 # * call init if is exists
802 # * call main if it exists
803 fun compile_main_function
805 var v
= self.new_visitor
806 v
.add_decl
("#include <signal.h>")
807 var platform
= target_platform
809 var no_main
= platform
.no_main
or modelbuilder
.toolcontext
.opt_no_main
.value
811 if platform
.supports_libunwind
then
812 v
.add_decl
("#ifndef NO_STACKTRACE")
813 v
.add_decl
("#define UNW_LOCAL_ONLY")
814 v
.add_decl
("#include <libunwind.h>")
815 v
.add_decl
("#include \"c_functions_hash
.h\
"")
818 v
.add_decl
("int glob_argc;")
819 v
.add_decl
("char **glob_argv;")
820 v
.add_decl
("val *glob_sys;")
821 v
.add_decl
("struct catch_stack_t catchStack;")
823 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
824 for tag
in count_type_test_tags
do
825 v
.add_decl
("long count_type_test_resolved_{tag};")
826 v
.add_decl
("long count_type_test_unresolved_{tag};")
827 v
.add_decl
("long count_type_test_skipped_{tag};")
828 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
829 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
830 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
834 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
835 v
.add_decl
("long count_invoke_by_tables;")
836 v
.add_decl
("long count_invoke_by_direct;")
837 v
.add_decl
("long count_invoke_by_inline;")
838 v
.compiler
.header
.add_decl
("extern long count_invoke_by_tables;")
839 v
.compiler
.header
.add_decl
("extern long count_invoke_by_direct;")
840 v
.compiler
.header
.add_decl
("extern long count_invoke_by_inline;")
843 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
844 v
.add_decl
("long count_attr_reads = 0;")
845 v
.add_decl
("long count_isset_checks = 0;")
846 v
.compiler
.header
.add_decl
("extern long count_attr_reads;")
847 v
.compiler
.header
.add_decl
("extern long count_isset_checks;")
850 v
.add_decl
("static void show_backtrace(void) \{")
851 if platform
.supports_libunwind
then
852 v
.add_decl
("#ifndef NO_STACKTRACE")
853 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
854 v
.add_decl
("unw_cursor_t cursor;")
855 v
.add_decl
("if(opt==NULL)\{")
856 v
.add_decl
("unw_context_t uc;")
857 v
.add_decl
("unw_word_t ip;")
858 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
859 v
.add_decl
("unw_getcontext(&uc);")
860 v
.add_decl
("unw_init_local(&cursor, &uc);")
861 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
862 v
.add_decl
("PRINT_ERROR(\"-- Stack Trace ------------------------------\\n\
");")
863 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
864 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
865 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
866 v
.add_decl
(" const char* recv = get_nit_name(procname, strlen(procname));")
867 v
.add_decl
(" if (recv != NULL)\{")
868 v
.add_decl
(" PRINT_ERROR(\"` %s\\n\", recv);")
869 v.add_decl(" \}else\{")
870 v.add_decl(" PRINT_ERROR(\"` %s\\n\
", procname);")
873 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
874 v
.add_decl
("free(procname);")
876 v
.add_decl
("#endif /* NO_STACKTRACE */")
880 v
.add_decl
("void sig_handler(int signo)\{")
881 v
.add_decl
("PRINT_ERROR(\"Caught signal
: %s\\n\
", strsignal(signo));")
882 v
.add_decl
("show_backtrace();")
884 v
.add_decl
("signal(signo, SIG_DFL);")
885 v
.add_decl
("kill(getpid(), signo);")
888 v
.add_decl
("void fatal_exit(int status) \{")
889 v
.add_decl
("show_backtrace();")
890 v
.add_decl
("exit(status);")
893 compile_before_main
(v
)
896 v
.add_decl
("int nit_main(int argc, char** argv) \{")
898 v
.add_decl
("int main(int argc, char** argv) \{")
901 compile_begin_main
(v
)
903 v
.add
"#if !defined(__ANDROID__) && !defined(TARGET_OS_IPHONE)"
904 v
.add
("signal(SIGABRT, sig_handler);")
905 v
.add
("signal(SIGFPE, sig_handler);")
906 v
.add
("signal(SIGILL, sig_handler);")
907 v
.add
("signal(SIGINT, sig_handler);")
908 v
.add
("signal(SIGTERM, sig_handler);")
909 v
.add
("signal(SIGSEGV, sig_handler);")
911 v
.add
("signal(SIGPIPE, SIG_IGN);")
913 v
.add
("glob_argc = argc; glob_argv = argv;")
914 v
.add
("catchStack.cursor = -1;")
915 v
.add
("initialize_gc_option();")
917 v
.add
"initialize_nitni_global_refs();"
919 var main_type
= mainmodule
.sys_type
920 if main_type
!= null then
921 var mainmodule
= v
.compiler
.mainmodule
922 var glob_sys
= v
.init_instance
(main_type
)
923 v
.add
("glob_sys = {glob_sys};")
924 var main_init
= mainmodule
.try_get_primitive_method
("init", main_type
.mclass
)
925 if main_init
!= null then
926 v
.send
(main_init
, [glob_sys
])
928 var main_method
= mainmodule
.try_get_primitive_method
("run", main_type
.mclass
) or else
929 mainmodule
.try_get_primitive_method
("main", main_type
.mclass
)
930 if main_method
!= null then
931 v
.send
(main_method
, [glob_sys
])
935 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
936 v
.add_decl
("long count_type_test_resolved_total = 0;")
937 v
.add_decl
("long count_type_test_unresolved_total = 0;")
938 v
.add_decl
("long count_type_test_skipped_total = 0;")
939 v
.add_decl
("long count_type_test_total_total = 0;")
940 for tag
in count_type_test_tags
do
941 v
.add_decl
("long count_type_test_total_{tag};")
942 v
.add
("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
943 v
.add
("count_type_test_resolved_total += count_type_test_resolved_{tag};")
944 v
.add
("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
945 v
.add
("count_type_test_skipped_total += count_type_test_skipped_{tag};")
946 v
.add
("count_type_test_total_total += count_type_test_total_{tag};")
948 v
.add
("printf(\"# dynamic count_type_test: total %l\\n\");")
949 v
.add
("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\
");")
950 var tags
= count_type_test_tags
.to_a
953 v
.add
("printf(\"{tag}\
");")
954 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
955 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
956 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
957 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\\n\
", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
961 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
962 v
.add_decl
("long count_invoke_total;")
963 v
.add
("count_invoke_total = count_invoke_by_tables + count_invoke_by_direct + count_invoke_by_inline;")
964 v
.add
("printf(\"# dynamic count_invocation: total %ld\\n\", count_invoke_total);")
965 v
.add
("printf(\"by table
: %ld
(%.2f
%%)\\n\
", count_invoke_by_tables, 100.0*count_invoke_by_tables/count_invoke_total);")
966 v
.add
("printf(\"direct
: %ld
(%.2f
%%)\\n\
", count_invoke_by_direct, 100.0*count_invoke_by_direct/count_invoke_total);")
967 v
.add
("printf(\"inlined
: %ld
(%.2f
%%)\\n\
", count_invoke_by_inline, 100.0*count_invoke_by_inline/count_invoke_total);")
970 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
971 v
.add
("printf(\"# dynamic attribute reads: %ld\\n\", count_attr_reads);")
972 v
.add
("printf(\"# dynamic isset checks: %ld\\n\", count_isset_checks);")
978 for m
in mainmodule
.in_importation
.greaters
do
979 var f
= "FILE_"+m
.c_name
980 v
.add
"const char {f}[] = \"{m.location.file.filename.escape_to_c}\
";"
981 provide_declaration
(f
, "extern const char {f}[];")
985 # Copile all C functions related to the [incr|decr]_ref features of the FFI
986 fun compile_nitni_global_ref_functions
988 var v
= self.new_visitor
990 struct nitni_global_ref_list_t *nitni_global_ref_list;
991 void initialize_nitni_global_refs() {
992 nitni_global_ref_list = (struct nitni_global_ref_list_t*)nit_alloc(sizeof(struct nitni_global_ref_list_t));
993 nitni_global_ref_list->head = NULL;
994 nitni_global_ref_list->tail = NULL;
997 void nitni_global_ref_add( struct nitni_ref *ref ) {
998 if ( nitni_global_ref_list->head == NULL ) {
999 nitni_global_ref_list->head = ref;
1002 nitni_global_ref_list->tail->next = ref;
1003 ref->prev = nitni_global_ref_list->tail;
1005 nitni_global_ref_list->tail = ref;
1010 void nitni_global_ref_remove( struct nitni_ref *ref ) {
1011 if ( ref->prev == NULL ) {
1012 nitni_global_ref_list->head = ref->next;
1014 ref->prev->next = ref->next;
1017 if ( ref->next == NULL ) {
1018 nitni_global_ref_list->tail = ref->prev;
1020 ref->next->prev = ref->prev;
1024 extern void nitni_global_ref_incr( struct nitni_ref *ref ) {
1025 if ( ref->count == 0 ) /* not registered */
1028 nitni_global_ref_add( ref );
1034 extern void nitni_global_ref_decr( struct nitni_ref *ref ) {
1035 if ( ref->count == 1 ) /* was last reference */
1037 /* remove from list */
1038 nitni_global_ref_remove( ref );
1046 # List of additional files required to compile (FFI)
1047 var extern_bodies
= new Array[ExternFile]
1049 # List of source files to copy over to the compile dir
1050 var files_to_copy
= new Array[String]
1052 # This is used to avoid adding an extern file more than once
1053 private var seen_extern
= new ArraySet[String]
1055 # Generate code that initialize the attributes on a new instance
1056 fun generate_init_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1058 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1059 self.mainmodule
.linearize_mclassdefs
(cds
)
1061 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1062 npropdef
.init_expr
(v
, recv
)
1067 # Generate code that check if an attribute is correctly initialized
1068 fun generate_check_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1070 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1071 self.mainmodule
.linearize_mclassdefs
(cds
)
1073 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1074 npropdef
.check_expr
(v
, recv
)
1081 var count_type_test_tags
: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
1082 var count_type_test_resolved
: HashMap[String, Int] = init_count_type_test_tags
1083 var count_type_test_unresolved
: HashMap[String, Int] = init_count_type_test_tags
1084 var count_type_test_skipped
: HashMap[String, Int] = init_count_type_test_tags
1086 protected fun init_count_type_test_tags
: HashMap[String, Int]
1088 var res
= new HashMap[String, Int]
1089 for tag
in count_type_test_tags
do
1095 # Display stats about compilation process
1099 # * type tests against resolved types (`x isa Collection[Animal]`)
1100 # * type tests against unresolved types (`x isa Collection[E]`)
1101 # * type tests skipped
1102 # * type tests total
1105 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1106 print
"# static count_type_test"
1107 print
"\tresolved:\tunresolved\tskipped\ttotal"
1108 var count_type_test_total
= init_count_type_test_tags
1109 count_type_test_resolved
["total"] = 0
1110 count_type_test_unresolved
["total"] = 0
1111 count_type_test_skipped
["total"] = 0
1112 count_type_test_total
["total"] = 0
1113 for tag
in count_type_test_tags
do
1114 count_type_test_total
[tag
] = count_type_test_resolved
[tag
] + count_type_test_unresolved
[tag
] + count_type_test_skipped
[tag
]
1115 count_type_test_resolved
["total"] += count_type_test_resolved
[tag
]
1116 count_type_test_unresolved
["total"] += count_type_test_unresolved
[tag
]
1117 count_type_test_skipped
["total"] += count_type_test_skipped
[tag
]
1118 count_type_test_total
["total"] += count_type_test_total
[tag
]
1120 var count_type_test
= count_type_test_total
["total"]
1121 var tags
= count_type_test_tags
.to_a
1125 printn
"\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
1126 printn
"\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
1127 printn
"\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
1128 printn
"\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
1134 fun finalize_ffi_for_module
(mmodule
: MModule) do mmodule
.finalize_ffi
(self)
1137 # A file unit (may be more than one file if
1138 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
1141 var writers
= new Array[CodeWriter]
1142 var required_declarations
= new HashSet[String]
1145 # Where to store generated lines
1148 var lines
= new Array[String]
1149 var decl_lines
= new Array[String]
1151 # Add a line in the main part of the generated C
1152 fun add
(s
: String) do self.lines
.add
(s
)
1155 # (used for local or global declaration)
1156 fun add_decl
(s
: String) do self.decl_lines
.add
(s
)
1160 file
.writers
.add
(self)
1164 # A visitor on the AST of property definition that generate the C code.
1165 abstract class AbstractCompilerVisitor
1167 type COMPILER: AbstractCompiler
1169 # The associated compiler
1170 var compiler
: COMPILER
1172 # The current visited AST node
1173 var current_node
: nullable ANode = null is writable
1175 # The current `StaticFrame`
1176 var frame
: nullable StaticFrame = null is writable
1178 # Alias for self.compiler.mainmodule.object_type
1179 fun object_type
: MClassType do return self.compiler
.mainmodule
.object_type
1181 # Alias for self.compiler.mainmodule.bool_type
1182 fun bool_type
: MClassType do return self.compiler
.mainmodule
.bool_type
1184 var writer
: CodeWriter is noinit
1188 self.writer
= new CodeWriter(compiler
.files
.last
)
1191 # Force to get the primitive property named `name` in the instance `recv` or abort
1192 fun get_property
(name
: String, recv
: MType): MMethod
1194 assert recv
isa MClassType
1195 return self.compiler
.modelbuilder
.force_get_primitive_method
(self.current_node
, name
, recv
.mclass
, self.compiler
.mainmodule
)
1198 fun compile_callsite
(callsite
: CallSite, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1200 if callsite
.is_broken
then return null
1201 var initializers
= callsite
.mpropdef
.initializers
1202 if not initializers
.is_empty
then
1203 var recv
= arguments
.first
1206 for p
in initializers
do
1207 if p
isa MMethod then
1209 for x
in p
.intro
.msignature
.mparameters
do
1210 args
.add arguments
[i
]
1214 else if p
isa MAttribute then
1215 self.write_attribute
(p
, recv
, arguments
[i
])
1219 assert i
== arguments
.length
1221 return self.send
(callsite
.mproperty
, [recv
])
1224 return self.send
(callsite
.mproperty
, arguments
)
1227 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable is abstract
1229 fun native_array_def
(pname
: String, ret_type
: nullable MType, arguments
: Array[RuntimeVariable]): Bool do return false
1231 # Return an element of a native array.
1232 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1233 fun native_array_get
(native_array
: RuntimeVariable, index
: Int): RuntimeVariable is abstract
1235 # Store an element in a native array.
1236 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1237 fun native_array_set
(native_array
: RuntimeVariable, index
: Int, value
: RuntimeVariable) is abstract
1239 # Allocate `size` bytes with the low_level `nit_alloc` C function
1241 # This method can be redefined to inject statistic or tracing code.
1243 # `tag` if any, is used to mark the class of the allocated object.
1244 fun nit_alloc
(size
: String, tag
: nullable String): String
1246 return "nit_alloc({size})"
1249 # Evaluate `args` as expressions in the call of `mpropdef` on `recv`.
1250 # This method is used to manage varargs in signatures and returns the real array
1251 # of runtime variables to use in the call.
1252 fun varargize
(mpropdef
: MMethodDef, map
: nullable SignatureMap, recv
: RuntimeVariable, args
: SequenceRead[AExpr]): Array[RuntimeVariable]
1254 var msignature
= mpropdef
.new_msignature
or else mpropdef
.msignature
.as(not null)
1255 var res
= new Array[RuntimeVariable]
1258 if msignature
.arity
== 0 then return res
1261 assert args
.length
== msignature
.arity
1263 res
.add
self.expr
(ne
, null)
1268 # Eval in order of arguments, not parameters
1269 var exprs
= new Array[RuntimeVariable].with_capacity
(args
.length
)
1271 exprs
.add
self.expr
(ne
, null)
1274 # Fill `res` with the result of the evaluation according to the mapping
1275 for i
in [0..msignature
.arity
[ do
1276 var param
= msignature
.mparameters
[i
]
1277 var j
= map
.map
.get_or_null
(i
)
1280 res
.add
(null_instance
)
1283 if param
.is_vararg
and args
[i
].vararg_decl
> 0 then
1284 var vararg
= exprs
.sub
(j
, args
[i
].vararg_decl
)
1285 var elttype
= param
.mtype
1286 var arg
= self.vararg_instance
(mpropdef
, recv
, vararg
, elttype
)
1297 # Anchor a type to the main module and the current receiver
1298 fun anchor
(mtype
: MType): MType
1300 if not mtype
.need_anchor
then return mtype
1301 return mtype
.anchor_to
(self.compiler
.mainmodule
, self.frame
.receiver
)
1304 fun resolve_for
(mtype
: MType, recv
: RuntimeVariable): MType
1306 if not mtype
.need_anchor
then return mtype
1307 return mtype
.resolve_for
(recv
.mcasttype
, self.frame
.receiver
, self.compiler
.mainmodule
, true)
1310 # Unsafely cast a value to a new type
1311 # ie the result share the same C variable but my have a different mcasttype
1312 # NOTE: if the adaptation is useless then `value` is returned as it.
1313 # ENSURE: `result.name == value.name`
1314 fun autoadapt
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable
1316 mtype
= self.anchor
(mtype
)
1317 var valmtype
= value
.mcasttype
1319 # Do nothing if useless autocast
1320 if valmtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1324 # Just as_not_null if the target is not nullable.
1326 # eg `nullable PreciseType` adapted to `Object` gives precisetype.
1327 if valmtype
isa MNullableType and valmtype
.mtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1328 mtype
= valmtype
.mtype
1331 var res
= new RuntimeVariable(value
.name
, value
.mtype
, mtype
)
1335 # Generate a super call from a method definition
1336 fun supercall
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1338 # Adapt the arguments of a method according to targetted `MMethodDef`
1339 fun adapt_signature
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1341 # Unbox all the arguments of a method when implemented `extern` or `intern`
1342 fun unbox_signature_extern
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1344 # Box or unbox a value to another type iff a C type conversion is needed
1345 # ENSURE: `result.mtype.ctype == mtype.ctype`
1346 fun autobox
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1348 # Box extern classes to be used in the generated code
1349 fun box_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1351 # Unbox extern classes to be used in extern code (legacy NI and FFI)
1352 fun unbox_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1354 # Generate a polymorphic subtype test
1355 fun type_test
(value
: RuntimeVariable, mtype
: MType, tag
: String): RuntimeVariable is abstract
1357 # Generate the code required to dynamically check if 2 objects share the same runtime type
1358 fun is_same_type_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1360 # Generate a Nit "is" for two runtime_variables
1361 fun equal_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1365 # Generate a static call on a method definition
1366 fun call
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1368 # Generate a polymorphic send for the method `m` and the arguments `args`
1369 fun send
(m
: MMethod, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1371 # Generate a monomorphic send for the method `m`, the type `t` and the arguments `args`
1372 fun monomorphic_send
(m
: MMethod, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1374 assert t
isa MClassType
1375 var propdef
= m
.lookup_first_definition
(self.compiler
.mainmodule
, t
)
1376 return self.call
(propdef
, t
, args
)
1379 # Generate a monomorphic super send from the method `m`, the type `t` and the arguments `args`
1380 fun monomorphic_super_send
(m
: MMethodDef, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1382 assert t
isa MClassType
1383 m
= m
.lookup_next_definition
(self.compiler
.mainmodule
, t
)
1384 return self.call
(m
, t
, args
)
1387 # Attributes handling
1389 # Generate a polymorphic attribute is_set test
1390 fun isset_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1392 # Generate a polymorphic attribute read
1393 fun read_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1395 # Generate a polymorphic attribute write
1396 fun write_attribute
(a
: MAttribute, recv
: RuntimeVariable, value
: RuntimeVariable) is abstract
1400 # Can value be null? (according to current knowledge)
1401 fun maybenull
(value
: RuntimeVariable): Bool
1403 return value
.mcasttype
isa MNullableType or value
.mcasttype
isa MNullType
1406 # Add a check and an abort for a null receiver if needed
1407 fun check_recv_notnull
(recv
: RuntimeVariable)
1409 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_null
.value
then return
1411 if maybenull
(recv
) then
1412 self.add
("if (unlikely({recv} == NULL)) \{")
1413 self.add_abort
("Receiver is null")
1420 private var names
= new HashSet[String]
1421 private var last
: Int = 0
1423 # Return a new name based on `s` and unique in the visitor
1424 fun get_name
(s
: String): String
1426 if not self.names
.has
(s
) then
1430 var i
= self.last
+ 1
1433 if not self.names
.has
(s2
) then
1442 # Return an unique and stable identifier associated with an escapemark
1443 fun escapemark_name
(e
: nullable EscapeMark): String
1446 if frame
.escapemark_names
.has_key
(e
) then return frame
.escapemark_names
[e
]
1448 if name
== null then name
= "label"
1449 name
= get_name
(name
)
1450 frame
.escapemark_names
[e
] = name
1454 # Insert a C label for associated with an escapemark
1455 fun add_escape_label
(e
: nullable EscapeMark)
1457 if e
== null then return
1458 if e
.escapes
.is_empty
then return
1459 add
("BREAK_{escapemark_name(e)}: (void)0;")
1462 # Return a "const char*" variable associated to the classname of the dynamic type of an object
1463 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
1464 fun class_name_string
(value
: RuntimeVariable): String is abstract
1466 # Variables handling
1468 protected var variables
= new HashMap[Variable, RuntimeVariable]
1470 # Return the local runtime_variable associated to a Nit local variable
1471 fun variable
(variable
: Variable): RuntimeVariable
1473 if self.variables
.has_key
(variable
) then
1474 return self.variables
[variable
]
1476 var name
= self.get_name
("var_{variable.name}")
1477 var mtype
= variable
.declared_type
.as(not null)
1478 mtype
= self.anchor
(mtype
)
1479 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1480 self.add_decl
("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
1481 self.variables
[variable
] = res
1486 # Return a new uninitialized local runtime_variable
1487 fun new_var
(mtype
: MType): RuntimeVariable
1489 mtype
= self.anchor
(mtype
)
1490 var name
= self.get_name
("var")
1491 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1492 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1496 # The difference with `new_var` is the C static type of the local variable
1497 fun new_var_extern
(mtype
: MType): RuntimeVariable
1499 mtype
= self.anchor
(mtype
)
1500 var name
= self.get_name
("var")
1501 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1502 self.add_decl
("{mtype.ctype_extern} {name} /* : {mtype} for extern */;")
1506 # Return a new uninitialized named runtime_variable
1507 fun new_named_var
(mtype
: MType, name
: String): RuntimeVariable
1509 mtype
= self.anchor
(mtype
)
1510 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1511 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1515 # Correctly assign a left and a right value
1516 # Boxing and unboxing is performed if required
1517 fun assign
(left
, right
: RuntimeVariable)
1519 right
= self.autobox
(right
, left
.mtype
)
1520 self.add
("{left} = {right};")
1523 # Generate instances
1525 # Generate a alloc-instance + init-attributes
1526 fun init_instance
(mtype
: MClassType): RuntimeVariable is abstract
1528 # Allocate and init attributes of an instance of a standard or extern class
1530 # Does not support universals and the pseudo-internal `NativeArray` class.
1531 fun init_instance_or_extern
(mtype
: MClassType): RuntimeVariable
1534 var ctype
= mtype
.ctype
1535 assert mtype
.mclass
.name
!= "NativeArray"
1536 if not mtype
.is_c_primitive
then
1537 recv
= init_instance
(mtype
)
1538 else if ctype
== "char*" then
1539 recv
= new_expr
("NULL/*special!*/", mtype
)
1541 recv
= new_expr
("({ctype})0/*special!*/", mtype
)
1546 # Set a GC finalizer on `recv`, only if `recv` isa Finalizable
1547 fun set_finalizer
(recv
: RuntimeVariable)
1549 var mtype
= recv
.mtype
1550 var finalizable_type
= compiler
.mainmodule
.finalizable_type
1551 if finalizable_type
!= null and not mtype
.need_anchor
and
1552 mtype
.is_subtype
(compiler
.mainmodule
, null, finalizable_type
) then
1553 add
"gc_register_finalizer({recv});"
1557 # The currently processed module
1559 # alias for `compiler.mainmodule`
1560 fun mmodule
: MModule do return compiler
.mainmodule
1562 # Generate an integer value
1563 fun int_instance
(value
: Int): RuntimeVariable
1565 var t
= mmodule
.int_type
1566 var res
= new RuntimeVariable("{value.to_s}l", t
, t
)
1570 # Generate a byte value
1571 fun byte_instance
(value
: Byte): RuntimeVariable
1573 var t
= mmodule
.byte_type
1574 var res
= new RuntimeVariable("((unsigned char){value.to_s})", t
, t
)
1578 # Generate an int8 value
1579 fun int8_instance
(value
: Int8): RuntimeVariable
1581 var t
= mmodule
.int8_type
1582 var res
= new RuntimeVariable("((int8_t){value.to_s})", t
, t
)
1586 # Generate an int16 value
1587 fun int16_instance
(value
: Int16): RuntimeVariable
1589 var t
= mmodule
.int16_type
1590 var res
= new RuntimeVariable("((int16_t){value.to_s})", t
, t
)
1594 # Generate a uint16 value
1595 fun uint16_instance
(value
: UInt16): RuntimeVariable
1597 var t
= mmodule
.uint16_type
1598 var res
= new RuntimeVariable("((uint16_t){value.to_s})", t
, t
)
1602 # Generate an int32 value
1603 fun int32_instance
(value
: Int32): RuntimeVariable
1605 var t
= mmodule
.int32_type
1606 var res
= new RuntimeVariable("((int32_t){value.to_s})", t
, t
)
1610 # Generate a uint32 value
1611 fun uint32_instance
(value
: UInt32): RuntimeVariable
1613 var t
= mmodule
.uint32_type
1614 var res
= new RuntimeVariable("((uint32_t){value.to_s})", t
, t
)
1618 # Generate a char value
1619 fun char_instance
(value
: Char): RuntimeVariable
1621 var t
= mmodule
.char_type
1623 if value
.code_point
< 128 then
1624 return new RuntimeVariable("'{value.to_s.escape_to_c}'", t
, t
)
1626 return new RuntimeVariable("{value.code_point}", t
, t
)
1630 # Generate a float value
1632 # FIXME pass a Float, not a string
1633 fun float_instance
(value
: String): RuntimeVariable
1635 var t
= mmodule
.float_type
1636 var res
= new RuntimeVariable("{value}", t
, t
)
1640 # Generate an integer value
1641 fun bool_instance
(value
: Bool): RuntimeVariable
1643 var s
= if value
then "1" else "0"
1644 var res
= new RuntimeVariable(s
, bool_type
, bool_type
)
1648 # Generate the `null` value
1649 fun null_instance
: RuntimeVariable
1651 var t
= compiler
.mainmodule
.model
.null_type
1652 var res
= new RuntimeVariable("((val*)NULL)", t
, t
)
1656 # Generates a NativeString instance fully escaped in C-style \xHH fashion
1657 fun native_string_instance
(ns
: NativeString, len
: Int): RuntimeVariable do
1658 var mtype
= mmodule
.native_string_type
1659 var nat
= new_var
(mtype
)
1660 var byte_esc
= new Buffer.with_cap
(len
* 4)
1661 for i
in [0 .. len
[ do
1662 byte_esc
.append
("\\x{ns[i].to_s.substring_from(2)}")
1664 self.add
("{nat} = \"{byte_esc}\
";")
1668 # Generate a string value
1669 fun string_instance
(string
: String): RuntimeVariable
1671 var mtype
= mmodule
.string_type
1672 var name
= self.get_name
("varonce")
1673 self.add_decl
("static {mtype.ctype} {name};")
1674 var res
= self.new_var
(mtype
)
1675 self.add
("if (likely({name}!=NULL)) \{")
1676 self.add
("{res} = {name};")
1677 self.add
("\} else \{")
1678 var native_mtype
= mmodule
.native_string_type
1679 var nat
= self.new_var
(native_mtype
)
1680 self.add
("{nat} = \"{string.escape_to_c}\
";")
1681 var byte_length
= self.int_instance
(string
.byte_length
)
1682 var unilen
= self.int_instance
(string
.length
)
1683 self.add
("{res} = {self.send(self.get_property("to_s_full", native_mtype), [nat, byte_length, unilen]).as(not null)};")
1684 self.add
("{name} = {res};")
1689 fun value_instance
(object
: Object): RuntimeVariable
1691 if object
isa Int then
1692 return int_instance
(object
)
1693 else if object
isa Bool then
1694 return bool_instance
(object
)
1695 else if object
isa String then
1696 return string_instance
(object
)
1702 # Generate an array value
1703 fun array_instance
(array
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1705 # Get an instance of a array for a vararg
1706 fun vararg_instance
(mpropdef
: MPropDef, recv
: RuntimeVariable, varargs
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1710 # Add a line in the main part of the generated C
1711 fun add
(s
: String) do self.writer
.lines
.add
(s
)
1714 # (used for local or global declaration)
1715 fun add_decl
(s
: String) do self.writer
.decl_lines
.add
(s
)
1717 # Request the presence of a global declaration
1718 fun require_declaration
(key
: String)
1720 var reqs
= self.writer
.file
.required_declarations
1721 if reqs
.has
(key
) then return
1723 var node
= current_node
1724 if node
!= null then compiler
.requirers_of_declarations
[key
] = node
1727 # Add a declaration in the local-header
1728 # The declaration is ensured to be present once
1729 fun declare_once
(s
: String)
1731 self.compiler
.provide_declaration
(s
, s
)
1732 self.require_declaration
(s
)
1735 # Look for a needed .h and .c file for a given module
1736 # This is used for the legacy FFI
1737 fun add_extern
(mmodule
: MModule)
1739 var file
= mmodule
.filepath
1740 file
= file
.strip_extension
(".nit")
1741 var tryfile
= file
+ ".nit.h"
1742 if tryfile
.file_exists
then
1743 self.declare_once
("#include \"{tryfile.basename}\
"")
1744 self.compiler
.files_to_copy
.add
(tryfile
)
1746 tryfile
= file
+ "_nit.h"
1747 if tryfile
.file_exists
then
1748 self.declare_once
("#include \"{tryfile.basename}\
"")
1749 self.compiler
.files_to_copy
.add
(tryfile
)
1752 if self.compiler
.seen_extern
.has
(file
) then return
1753 self.compiler
.seen_extern
.add
(file
)
1754 tryfile
= file
+ ".nit.c"
1755 if not tryfile
.file_exists
then
1756 tryfile
= file
+ "_nit.c"
1757 if not tryfile
.file_exists
then return
1759 var f
= new ExternCFile(tryfile
.basename
, "")
1760 self.compiler
.extern_bodies
.add
(f
)
1761 self.compiler
.files_to_copy
.add
(tryfile
)
1764 # Return a new local runtime_variable initialized with the C expression `cexpr`.
1765 fun new_expr
(cexpr
: String, mtype
: MType): RuntimeVariable
1767 var res
= new_var
(mtype
)
1768 self.add
("{res} = {cexpr};")
1772 # Generate generic abort
1773 # used by aborts, asserts, casts, etc.
1774 fun add_abort
(message
: String)
1776 self.add
("if(catchStack.cursor >= 0)\{")
1777 self.add
("longjmp(catchStack.envs[catchStack.cursor], 1);")
1779 self.add
("PRINT_ERROR(\"Runtime error
: %s\
", \"{message.escape_to_c}\
");")
1785 if self.current_node
!= null and self.current_node
.location
.file
!= null and
1786 self.current_node
.location
.file
.mmodule
!= null then
1787 var f
= "FILE_{self.current_node.location.file.mmodule.c_name}"
1788 self.require_declaration
(f
)
1789 self.add
("PRINT_ERROR(\" (%s
:%d
)\\n\
", {f}, {current_node.location.line_start});")
1791 self.add
("PRINT_ERROR(\"\\n\
");")
1793 self.add
("fatal_exit(1);")
1796 # Add a dynamic cast
1797 fun add_cast
(value
: RuntimeVariable, mtype
: MType, tag
: String)
1799 var res
= self.type_test
(value
, mtype
, tag
)
1800 self.add
("if (unlikely(!{res})) \{")
1801 var cn
= self.class_name_string
(value
)
1802 self.add
("PRINT_ERROR(\"Runtime error
: Cast failed
. Expected `%s`, got
`%s`\
", \"{mtype.to_s.escape_to_c}\
", {cn});")
1807 # Generate a return with the value `s`
1808 fun ret
(s
: RuntimeVariable)
1810 self.assign
(self.frame
.returnvar
.as(not null), s
)
1811 self.add
("goto {self.frame.returnlabel.as(not null)};")
1814 # Compile a statement (if any)
1815 fun stmt
(nexpr
: nullable AExpr)
1817 if nexpr
== null then return
1818 if nexpr
.is_broken
then
1819 # Untyped expression.
1820 # Might mean dead code or invalid code
1822 add_abort
("FATAL: bad statement executed.")
1826 var narray
= nexpr
.comprehension
1827 if narray
!= null then
1828 var recv
= frame
.comprehension
.as(not null)
1829 var val
= expr
(nexpr
, narray
.element_mtype
)
1830 compile_callsite
(narray
.push_callsite
.as(not null), [recv
, val
])
1834 var old
= self.current_node
1835 self.current_node
= nexpr
1837 self.current_node
= old
1840 # Compile an expression an return its result
1841 # `mtype` is the expected return type, pass null if no specific type is expected.
1842 fun expr
(nexpr
: AExpr, mtype
: nullable MType): RuntimeVariable
1844 var old
= self.current_node
1845 self.current_node
= nexpr
1848 if nexpr
.mtype
!= null then
1849 res
= nexpr
.expr
(self)
1853 # Untyped expression.
1854 # Might mean dead code or invalid code.
1856 add_abort
("FATAL: bad expression executed.")
1857 # and return a placebo result to please the C compiler
1858 if mtype
== null then mtype
= compiler
.mainmodule
.object_type
1859 res
= new_var
(mtype
)
1861 self.current_node
= old
1865 if mtype
!= null then
1866 mtype
= self.anchor
(mtype
)
1867 res
= self.autobox
(res
, mtype
)
1869 res
= autoadapt
(res
, nexpr
.mtype
.as(not null))
1870 var implicit_cast_to
= nexpr
.implicit_cast_to
1871 if implicit_cast_to
!= null and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_autocast
.value
then
1872 add_cast
(res
, implicit_cast_to
, "auto")
1873 res
= autoadapt
(res
, implicit_cast_to
)
1875 self.current_node
= old
1879 # Alias for `self.expr(nexpr, self.bool_type)`
1880 fun expr_bool
(nexpr
: AExpr): RuntimeVariable do return expr
(nexpr
, bool_type
)
1882 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1883 fun debug
(message
: String)
1885 var node
= self.current_node
1886 if node
== null then
1887 print
"?: {message}"
1891 self.add
("/* DEBUG: {message} */")
1895 # A C function associated to a Nit method
1896 # Because of customization, a given Nit method can be compiler more that once
1897 abstract class AbstractRuntimeFunction
1899 type COMPILER: AbstractCompiler
1900 type VISITOR: AbstractCompilerVisitor
1902 # The associated Nit method
1903 var mmethoddef
: MMethodDef
1905 # The mangled c name of the runtime_function
1906 # Subclasses should redefine `build_c_name` instead
1909 var res
= self.c_name_cache
1910 if res
!= null then return res
1911 res
= self.build_c_name
1912 self.c_name_cache
= res
1916 # Non cached version of `c_name`
1917 protected fun build_c_name
: String is abstract
1919 protected var c_name_cache
: nullable String = null is writable
1921 # Implements a call of the runtime_function
1922 # May inline the body or generate a C function call
1923 fun call
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1925 # Generate the code for the `AbstractRuntimeFunction`
1926 # Warning: compile more than once compilation makes CC unhappy
1927 fun compile_to_c
(compiler
: COMPILER) is abstract
1930 # A runtime variable hold a runtime value in C.
1931 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1933 # 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.
1934 class RuntimeVariable
1935 # The name of the variable in the C code
1938 # The static type of the variable (as declard in C)
1941 # The current casted type of the variable (as known in Nit)
1942 var mcasttype
: MType is writable
1944 # If the variable exaclty a mcasttype?
1945 # false (usual value) means that the variable is a mcasttype or a subtype.
1946 var is_exact
: Bool = false is writable
1950 assert not mtype
.need_anchor
1951 assert not mcasttype
.need_anchor
1954 redef fun to_s
do return name
1959 if self.is_exact
then
1960 exact_str
= " exact"
1965 if self.mtype
== self.mcasttype
then
1966 type_str
= "{mtype}{exact_str}"
1968 type_str
= "{mtype}({mcasttype}{exact_str})"
1970 return "<{name}:{type_str}>"
1974 # The static context of a visited property in a `AbstractCompilerVisitor`
1977 type VISITOR: AbstractCompilerVisitor
1979 # The associated visitor
1980 var visitor
: VISITOR
1982 # The executed property.
1983 # A Method in case of a call, an attribute in case of a default initialization.
1984 var mpropdef
: MPropDef
1986 # The static type of the receiver
1987 var receiver
: MClassType
1989 # Arguments of the method (the first is the receiver)
1990 var arguments
: Array[RuntimeVariable]
1992 # The runtime_variable associated to the return (in a function)
1993 var returnvar
: nullable RuntimeVariable = null is writable
1995 # The label at the end of the property
1996 var returnlabel
: nullable String = null is writable
1998 # Labels associated to a each escapemarks.
1999 # Because of inlinings, escape-marks must be associated to their context (the frame)
2000 private var escapemark_names
= new HashMap[EscapeMark, String]
2002 # The array comprehension currently filled, if any
2003 private var comprehension
: nullable RuntimeVariable = null
2007 # Return the C type associated to a given Nit static type
2008 fun ctype
: String do return "val*"
2010 # C type outside of the compiler code and in boxes
2011 fun ctype_extern
: String do return "val*"
2013 # Short name of the `ctype` to use in unions
2014 fun ctypename
: String do return "val"
2016 # Is the associated C type a primitive one?
2018 # ENSURE `result == (ctype != "val*")`
2019 fun is_c_primitive
: Bool do return false
2022 redef class MClassType
2024 redef var ctype
is lazy
do
2025 if mclass
.name
== "Int" then
2027 else if mclass
.name
== "Bool" then
2029 else if mclass
.name
== "Char" then
2031 else if mclass
.name
== "Float" then
2033 else if mclass
.name
== "Int8" then
2035 else if mclass
.name
== "Byte" then
2036 return "unsigned char"
2037 else if mclass
.name
== "Int16" then
2039 else if mclass
.name
== "UInt16" then
2041 else if mclass
.name
== "Int32" then
2043 else if mclass
.name
== "UInt32" then
2045 else if mclass
.name
== "NativeString" then
2047 else if mclass
.name
== "NativeArray" then
2054 redef var is_c_primitive
is lazy
do return ctype
!= "val*"
2056 redef fun ctype_extern
: String
2058 if mclass
.kind
== extern_kind
then
2065 redef fun ctypename
: String
2067 if mclass
.name
== "Int" then
2069 else if mclass
.name
== "Bool" then
2071 else if mclass
.name
== "Char" then
2073 else if mclass
.name
== "Float" then
2075 else if mclass
.name
== "Int8" then
2077 else if mclass
.name
== "Byte" then
2079 else if mclass
.name
== "Int16" then
2081 else if mclass
.name
== "UInt16" then
2083 else if mclass
.name
== "Int32" then
2085 else if mclass
.name
== "UInt32" then
2087 else if mclass
.name
== "NativeString" then
2089 else if mclass
.name
== "NativeArray" then
2090 #return "{self.arguments.first.ctype}*"
2098 redef class MPropDef
2099 type VISITOR: AbstractCompilerVisitor
2102 redef class MMethodDef
2103 # Can the body be inlined?
2104 fun can_inline
(v
: VISITOR): Bool
2106 if is_abstract
then return true
2107 if constant_value
!= null then return true
2108 var modelbuilder
= v
.compiler
.modelbuilder
2109 var node
= modelbuilder
.mpropdef2node
(self)
2110 if node
isa APropdef then
2111 return node
.can_inline
2112 else if node
isa AClassdef then
2113 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
2115 else if node
== null then
2122 # Inline the body in another visitor
2123 fun compile_inside_to_c
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
2125 var modelbuilder
= v
.compiler
.modelbuilder
2126 var val
= constant_value
2127 var node
= modelbuilder
.mpropdef2node
(self)
2130 var cn
= v
.class_name_string
(arguments
.first
)
2131 v
.current_node
= node
2132 v
.add
("PRINT_ERROR(\"Runtime error
: Abstract method
`%s` called on
`%s`\
", \"{mproperty.name.escape_to_c}\
", {cn});")
2137 if node
isa APropdef then
2138 var oldnode
= v
.current_node
2139 v
.current_node
= node
2140 self.compile_parameter_check
(v
, arguments
)
2141 node
.compile_to_c
(v
, self, arguments
)
2142 v
.current_node
= oldnode
2143 else if node
isa AClassdef then
2144 var oldnode
= v
.current_node
2145 v
.current_node
= node
2146 self.compile_parameter_check
(v
, arguments
)
2147 node
.compile_to_c
(v
, self, arguments
)
2148 v
.current_node
= oldnode
2149 else if val
!= null then
2150 v
.ret
(v
.value_instance
(val
))
2157 # Generate type checks in the C code to check covariant parameters
2158 fun compile_parameter_check
(v
: VISITOR, arguments
: Array[RuntimeVariable])
2160 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_covariance
.value
then return
2162 var msignature
= self.msignature
.as(not null)
2164 for i
in [0..msignature
.arity
[ do
2165 var mp
= msignature
.mparameters
[i
]
2166 # skip test for vararg since the array is instantiated with the correct polymorphic type
2167 if mp
.is_vararg
then continue
2169 # skip if the cast is not required
2170 var origmtype
= self.mproperty
.intro
.msignature
.mparameters
[i
].mtype
2171 if not origmtype
.need_anchor
then continue
2173 # get the parameter type
2174 var mtype
= mp
.mtype
2177 # note that v decides if and how to implements the cast
2178 v
.add
("/* Covariant cast for argument {i} ({mp.name}) {arguments[i+1].inspect} isa {mtype} */")
2179 v
.add_cast
(arguments
[i
+1], mtype
, "covariance")
2186 redef class APropdef
2187 fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
2189 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at
{location.to_s}\\n\
");")
2190 debug
("Not yet implemented")
2193 fun can_inline
: Bool do return true
2196 redef class AMethPropdef
2197 redef fun compile_to_c
(v
, mpropdef
, arguments
)
2199 # Call the implicit super-init
2200 var auto_super_inits
= self.auto_super_inits
2201 if auto_super_inits
!= null then
2202 var args
= [arguments
.first
]
2203 for auto_super_init
in auto_super_inits
do
2204 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2206 for i
in [0..auto_super_init
.msignature
.arity
+1[ do
2207 args
.add
(arguments
[i
])
2209 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2210 v
.compile_callsite
(auto_super_init
, args
)
2213 if auto_super_call
then
2214 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
2217 # Try special compilation
2218 if mpropdef
.is_intern
then
2219 if compile_intern_to_c
(v
, mpropdef
, arguments
) then return
2221 if mpropdef
.is_extern
then
2222 if mpropdef
.mproperty
.is_init
then
2223 if compile_externinit_to_c
(v
, mpropdef
, arguments
) then return
2225 if compile_externmeth_to_c
(v
, mpropdef
, arguments
) then return
2229 # Compile block if any
2230 var n_block
= n_block
2231 if n_block
!= null then
2232 for i
in [0..mpropdef
.msignature
.arity
[ do
2233 var variable
= self.n_signature
.n_params
[i
].variable
.as(not null)
2234 v
.assign
(v
.variable
(variable
), arguments
[i
+1])
2241 var cn
= v
.class_name_string
(arguments
.first
)
2242 v
.add
("PRINT_ERROR(\"Runtime error
: uncompiled method
`%s` called on
`%s`. NOT YET IMPLEMENTED\
", \"{mpropdef.mproperty.name.escape_to_c}\
", {cn});")
2246 redef fun can_inline
2248 if self.auto_super_inits
!= null then return false
2249 var nblock
= self.n_block
2250 if nblock
== null then return true
2251 if (mpropdef
.mproperty
.name
== "==" or mpropdef
.mproperty
.name
== "!=") and mpropdef
.mclassdef
.mclass
.name
== "Object" then return true
2252 if nblock
isa ABlockExpr and nblock
.n_expr
.length
== 0 then return true
2256 fun compile_intern_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
2258 var pname
= mpropdef
.mproperty
.name
2259 var cname
= mpropdef
.mclassdef
.mclass
.name
2260 var ret
= mpropdef
.msignature
.return_mtype
2262 ret
= v
.resolve_for
(ret
, arguments
.first
)
2264 if pname
!= "==" and pname
!= "!=" then
2265 v
.adapt_signature
(mpropdef
, arguments
)
2266 v
.unbox_signature_extern
(mpropdef
, arguments
)
2268 if cname
== "Int" then
2269 if pname
== "output" then
2270 v
.add
("printf(\"%ld\\n\
", {arguments.first});")
2272 else if pname
== "object_id" then
2273 v
.ret
(arguments
.first
)
2275 else if pname
== "+" then
2276 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2278 else if pname
== "-" then
2279 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2281 else if pname
== "unary -" then
2282 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2284 else if pname
== "unary +" then
2287 else if pname
== "*" then
2288 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2290 else if pname
== "/" then
2291 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2293 else if pname
== "%" then
2294 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2296 else if pname
== "==" then
2297 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2299 else if pname
== "!=" then
2300 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2301 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2303 else if pname
== "<" then
2304 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2306 else if pname
== ">" then
2307 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2309 else if pname
== "<=" then
2310 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", 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
== "to_i8" then
2316 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2318 else if pname
== "to_i16" then
2319 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2321 else if pname
== "to_u16" then
2322 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2324 else if pname
== "to_i32" then
2325 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2327 else if pname
== "to_u32" then
2328 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2330 else if pname
== "to_f" then
2331 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2333 else if pname
== "to_b" then
2334 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2336 else if pname
== "code_point" then
2337 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2339 else if pname
== "&" then
2340 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2342 else if pname
== "|" then
2343 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2345 else if pname
== ">>" then
2346 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2348 else if pname
== "<<" then
2349 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2352 else if cname
== "Char" then
2353 if pname
== "object_id" then
2354 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2356 else if pname
== "successor" then
2357 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2359 else if pname
== "predecessor" then
2360 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2362 else if pname
== "==" then
2363 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2365 else if pname
== "!=" then
2366 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2367 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2369 else if pname
== "<" then
2370 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2372 else if pname
== ">" then
2373 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2375 else if pname
== "<=" then
2376 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2378 else if pname
== ">=" then
2379 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2381 else if pname
== "to_i" then
2382 v
.ret
(v
.new_expr
("{arguments[0]}-'0'", ret
.as(not null)))
2384 else if pname
== "code_point" then
2385 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2388 else if cname
== "Byte" then
2389 if pname
== "output" then
2390 v
.add
("printf(\"%x\\n\
", {arguments.first});")
2392 else if pname
== "object_id" then
2393 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2395 else if pname
== "+" then
2396 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2398 else if pname
== "-" then
2399 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2401 else if pname
== "unary -" then
2402 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2404 else if pname
== "unary +" then
2407 else if pname
== "*" then
2408 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2410 else if pname
== "/" then
2411 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2413 else if pname
== "%" then
2414 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2416 else if pname
== "==" then
2417 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2419 else if pname
== "!=" then
2420 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2421 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2423 else if pname
== "<" then
2424 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[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
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2435 else if pname
== ">>" then
2436 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2438 else if pname
== "<<" then
2439 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2441 else if pname
== "&" then
2442 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2444 else if pname
== "to_i" then
2445 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2447 else if pname
== "to_f" then
2448 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2450 else if pname
== "to_i8" then
2451 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2453 else if pname
== "to_i16" then
2454 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2456 else if pname
== "to_u16" then
2457 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2459 else if pname
== "to_i32" then
2460 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2462 else if pname
== "to_u32" then
2463 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2465 else if pname
== "ascii" then
2466 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2469 else if cname
== "Bool" then
2470 if pname
== "output" then
2471 v
.add
("printf({arguments.first}?\"true\\n\
":\"false\\n\
");")
2473 else if pname
== "object_id" then
2474 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2476 else if pname
== "==" then
2477 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2479 else if pname
== "!=" then
2480 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2481 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2484 else if cname
== "Float" then
2485 if pname
== "output" then
2486 v
.add
("printf(\"%f\\n\
", {arguments.first});")
2488 else if pname
== "object_id" then
2489 v
.ret
(v
.new_expr
("(double){arguments.first}", ret
.as(not null)))
2491 else if pname
== "+" then
2492 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2494 else if pname
== "-" then
2495 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2497 else if pname
== "unary -" then
2498 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2500 else if pname
== "unary +" then
2503 else if pname
== "succ" then
2504 v
.ret
(v
.new_expr
("{arguments[0]}+1", ret
.as(not null)))
2506 else if pname
== "prec" then
2507 v
.ret
(v
.new_expr
("{arguments[0]}-1", ret
.as(not null)))
2509 else if pname
== "*" then
2510 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2512 else if pname
== "/" then
2513 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2515 else if pname
== "==" then
2516 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2518 else if pname
== "!=" then
2519 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2520 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2522 else if pname
== "<" then
2523 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2525 else if pname
== ">" then
2526 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2528 else if pname
== "<=" then
2529 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2531 else if pname
== ">=" then
2532 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2534 else if pname
== "to_i" then
2535 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2537 else if pname
== "to_b" then
2538 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2540 else if pname
== "to_i8" then
2541 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2543 else if pname
== "to_i16" then
2544 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2546 else if pname
== "to_u16" then
2547 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2549 else if pname
== "to_i32" then
2550 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2552 else if pname
== "to_u32" then
2553 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2556 else if cname
== "NativeString" then
2557 if pname
== "[]" then
2558 v
.ret
(v
.new_expr
("(unsigned char)((int){arguments[0]}[{arguments[1]}])", ret
.as(not null)))
2560 else if pname
== "[]=" then
2561 v
.add
("{arguments[0]}[{arguments[1]}]=(unsigned char){arguments[2]};")
2563 else if pname
== "copy_to" then
2564 v
.add
("memmove({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
2566 else if pname
== "atoi" then
2567 v
.ret
(v
.new_expr
("atoi({arguments[0]});", ret
.as(not null)))
2569 else if pname
== "fast_cstring" then
2570 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2572 else if pname
== "==" then
2573 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2575 else if pname
== "!=" then
2576 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2577 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2579 else if pname
== "new" then
2580 var alloc
= v
.nit_alloc
(arguments
[1].to_s
, "NativeString")
2581 v
.ret
(v
.new_expr
("(char*){alloc}", ret
.as(not null)))
2583 else if pname
== "fetch_4_chars" then
2584 v
.ret
(v
.new_expr
("(long)*((uint32_t*)({arguments[0]} + {arguments[1]}))", ret
.as(not null)))
2586 else if pname
== "fetch_4_hchars" then
2587 v
.ret
(v
.new_expr
("(long)be32toh(*((uint32_t*)({arguments[0]} + {arguments[1]})))", ret
.as(not null)))
2590 else if cname
== "NativeArray" then
2591 return v
.native_array_def
(pname
, ret
, arguments
)
2592 else if cname
== "Int8" then
2593 if pname
== "output" then
2594 v
.add
("printf(\"%\
"PRIi8 \"\\n\
", {arguments.first});")
2596 else if pname
== "object_id" then
2597 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2599 else if pname
== "+" then
2600 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2602 else if pname
== "-" then
2603 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2605 else if pname
== "unary -" then
2606 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2608 else if pname
== "unary +" then
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
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2620 else if pname
== "<<" then
2621 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2623 else if pname
== ">>" then
2624 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2626 else if pname
== "==" then
2627 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2629 else if pname
== "!=" then
2630 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2631 v
.ret
(v
.new_expr
("!{res}", 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
== ">" then
2637 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2639 else if pname
== "<=" then
2640 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2642 else if pname
== ">=" then
2643 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2645 else if pname
== "to_i" then
2646 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2648 else if pname
== "to_b" then
2649 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2651 else if pname
== "to_i16" then
2652 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2654 else if pname
== "to_u16" then
2655 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2657 else if pname
== "to_i32" then
2658 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2660 else if pname
== "to_u32" then
2661 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2663 else if pname
== "to_f" then
2664 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2666 else if pname
== "&" then
2667 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2669 else if pname
== "|" then
2670 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2672 else if pname
== "^" then
2673 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2675 else if pname
== "unary ~" then
2676 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2679 else if cname
== "Int16" then
2680 if pname
== "output" then
2681 v
.add
("printf(\"%\
"PRIi16 \"\\n\
", {arguments.first});")
2683 else if pname
== "object_id" then
2684 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2686 else if pname
== "+" then
2687 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2689 else if pname
== "-" then
2690 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2692 else if pname
== "unary -" then
2693 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2695 else if pname
== "unary +" then
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
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2707 else if pname
== "<<" then
2708 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2710 else if pname
== ">>" then
2711 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2713 else if pname
== "==" then
2714 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2716 else if pname
== "!=" then
2717 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2718 v
.ret
(v
.new_expr
("!{res}", 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
== ">" then
2724 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2726 else if pname
== "<=" then
2727 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2729 else if pname
== ">=" then
2730 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2732 else if pname
== "to_i" then
2733 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2735 else if pname
== "to_b" then
2736 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2738 else if pname
== "to_i8" then
2739 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2741 else if pname
== "to_u16" then
2742 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2744 else if pname
== "to_i32" then
2745 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2747 else if pname
== "to_u32" then
2748 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2750 else if pname
== "to_f" then
2751 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2753 else if pname
== "&" then
2754 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2756 else if pname
== "|" then
2757 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2759 else if pname
== "^" then
2760 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2762 else if pname
== "unary ~" then
2763 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2766 else if cname
== "UInt16" then
2767 if pname
== "output" then
2768 v
.add
("printf(\"%\
"PRIu16 \"\\n\
", {arguments.first});")
2770 else if pname
== "object_id" then
2771 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2773 else if pname
== "+" then
2774 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2776 else if pname
== "-" then
2777 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2779 else if pname
== "unary -" then
2780 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2782 else if pname
== "unary +" then
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
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2794 else if pname
== "<<" then
2795 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2797 else if pname
== ">>" then
2798 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2800 else if pname
== "==" then
2801 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2803 else if pname
== "!=" then
2804 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2805 v
.ret
(v
.new_expr
("!{res}", 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
== ">" then
2811 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2813 else if pname
== "<=" then
2814 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2816 else if pname
== ">=" then
2817 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2819 else if pname
== "to_i" then
2820 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2822 else if pname
== "to_b" then
2823 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2825 else if pname
== "to_i8" then
2826 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2828 else if pname
== "to_i16" then
2829 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2831 else if pname
== "to_i32" then
2832 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2834 else if pname
== "to_u32" then
2835 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2837 else if pname
== "to_f" then
2838 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2840 else if pname
== "&" then
2841 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2843 else if pname
== "|" then
2844 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2846 else if pname
== "^" then
2847 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2849 else if pname
== "unary ~" then
2850 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2853 else if cname
== "Int32" then
2854 if pname
== "output" then
2855 v
.add
("printf(\"%\
"PRIi32 \"\\n\
", {arguments.first});")
2857 else if pname
== "object_id" then
2858 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2860 else if pname
== "+" then
2861 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2863 else if pname
== "-" then
2864 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2866 else if pname
== "unary -" then
2867 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2869 else if pname
== "unary +" then
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
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2881 else if pname
== "<<" then
2882 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2884 else if pname
== ">>" then
2885 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2887 else if pname
== "==" then
2888 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2890 else if pname
== "!=" then
2891 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2892 v
.ret
(v
.new_expr
("!{res}", 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
== ">" then
2898 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2900 else if pname
== "<=" then
2901 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2903 else if pname
== ">=" then
2904 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2906 else if pname
== "to_i" then
2907 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2909 else if pname
== "to_b" then
2910 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2912 else if pname
== "to_i8" then
2913 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2915 else if pname
== "to_i16" then
2916 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2918 else if pname
== "to_u16" then
2919 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2921 else if pname
== "to_u32" then
2922 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2924 else if pname
== "to_f" then
2925 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2927 else if pname
== "&" then
2928 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2930 else if pname
== "|" then
2931 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2933 else if pname
== "^" then
2934 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2936 else if pname
== "unary ~" then
2937 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2940 else if cname
== "UInt32" then
2941 if pname
== "output" then
2942 v
.add
("printf(\"%\
"PRIu32 \"\\n\
", {arguments.first});")
2944 else if pname
== "object_id" then
2945 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2947 else if pname
== "+" then
2948 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2950 else if pname
== "-" then
2951 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2953 else if pname
== "unary -" then
2954 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2956 else if pname
== "unary +" then
2959 else if pname
== "*" then
2960 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2962 else if pname
== "/" then
2963 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2965 else if pname
== "%" then
2966 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2968 else if pname
== "<<" then
2969 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2971 else if pname
== ">>" then
2972 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2974 else if pname
== "==" then
2975 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2977 else if pname
== "!=" then
2978 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2979 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2981 else if pname
== "<" then
2982 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2984 else if pname
== ">" then
2985 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2987 else if pname
== "<=" then
2988 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2990 else if pname
== ">=" then
2991 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2993 else if pname
== "to_i" then
2994 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2996 else if pname
== "to_b" then
2997 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2999 else if pname
== "to_i8" then
3000 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
3002 else if pname
== "to_i16" then
3003 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
3005 else if pname
== "to_u16" then
3006 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
3008 else if pname
== "to_i32" then
3009 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
3011 else if pname
== "to_f" then
3012 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
3014 else if pname
== "&" then
3015 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
3017 else if pname
== "|" then
3018 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
3020 else if pname
== "^" then
3021 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
3023 else if pname
== "unary ~" then
3024 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
3028 if pname
== "exit" then
3029 v
.add
("exit({arguments[1]});")
3031 else if pname
== "sys" then
3032 v
.ret
(v
.new_expr
("glob_sys", ret
.as(not null)))
3034 else if pname
== "object_id" then
3035 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
3037 else if pname
== "is_same_type" then
3038 v
.ret
(v
.is_same_type_test
(arguments
[0], arguments
[1]))
3040 else if pname
== "is_same_instance" then
3041 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
3043 else if pname
== "output_class_name" then
3044 var nat
= v
.class_name_string
(arguments
.first
)
3045 v
.add
("printf(\"%s\\n\
", {nat});")
3047 else if pname
== "native_class_name" then
3048 var nat
= v
.class_name_string
(arguments
.first
)
3049 v
.ret
(v
.new_expr
("(char*){nat}", ret
.as(not null)))
3051 else if pname
== "force_garbage_collection" then
3052 v
.add
("nit_gcollect();")
3054 else if pname
== "native_argc" then
3055 v
.ret
(v
.new_expr
("glob_argc", ret
.as(not null)))
3057 else if pname
== "native_argv" then
3058 v
.ret
(v
.new_expr
("glob_argv[{arguments[1]}]", ret
.as(not null)))
3064 # Compile an extern method
3065 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3066 fun compile_externmeth_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3069 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3070 if at
!= null and at
.n_args
.length
== 1 then
3071 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3072 if externname
== null then return false
3076 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3077 var res
: nullable RuntimeVariable = null
3078 var ret
= mpropdef
.msignature
.return_mtype
3080 ret
= v
.resolve_for
(ret
, arguments
.first
)
3081 res
= v
.new_var_extern
(ret
)
3083 v
.adapt_signature
(mpropdef
, arguments
)
3084 v
.unbox_signature_extern
(mpropdef
, arguments
)
3087 v
.add
("{externname}({arguments.join(", ")});")
3089 v
.add
("{res} = {externname}({arguments.join(", ")});")
3090 res
= v
.box_extern
(res
, ret
.as(not null))
3096 # Compile an extern factory
3097 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3098 fun compile_externinit_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3101 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3103 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3104 if externname
== null then return false
3108 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3109 v
.adapt_signature
(mpropdef
, arguments
)
3110 v
.unbox_signature_extern
(mpropdef
, arguments
)
3111 var ret
= arguments
.first
.mtype
3112 var res
= v
.new_var_extern
(ret
)
3116 v
.add
("{res} = {externname}({arguments.join(", ")});")
3117 res
= v
.box_extern
(res
, ret
)
3123 redef class AAttrPropdef
3124 redef fun can_inline
: Bool do return not is_lazy
3126 redef fun compile_to_c
(v
, mpropdef
, arguments
)
3128 if mpropdef
== mreadpropdef
then
3129 assert arguments
.length
== 1
3130 var recv
= arguments
.first
3134 var ret
= self.mtype
3135 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3136 var guard
= self.mlazypropdef
.mproperty
3138 set
= v
.isset_attribute
(self.mpropdef
.mproperty
, recv
)
3140 set
= v
.read_attribute
(guard
, recv
)
3142 v
.add
("if(likely({set})) \{")
3143 res
= v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3146 var value
= evaluate_expr
(v
, recv
)
3148 v
.assign
(res
, value
)
3150 var true_v
= v
.bool_instance
(true)
3151 v
.write_attribute
(guard
, arguments
.first
, true_v
)
3155 res
= v
.read_attribute
(self.mpropdef
.mproperty
, arguments
.first
)
3157 v
.assign
(v
.frame
.returnvar
.as(not null), res
)
3158 else if mpropdef
== mwritepropdef
then
3159 assert arguments
.length
== 2
3160 var recv
= arguments
.first
3161 var arg
= arguments
[1]
3162 if is_optional
and v
.maybenull
(arg
) then
3163 var value
= v
.new_var
(self.mpropdef
.static_mtype
.as(not null))
3164 v
.add
("if ({arg} == NULL) \{")
3165 v
.assign
(value
, evaluate_expr
(v
, recv
))
3167 v
.assign
(value
, arg
)
3171 v
.write_attribute
(self.mpropdef
.mproperty
, arguments
.first
, arg
)
3173 var ret
= self.mtype
3174 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3176 v
.write_attribute
(self.mlazypropdef
.mproperty
, arguments
.first
, v
.bool_instance
(true))
3184 fun init_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3186 if has_value
and not is_lazy
and not is_optional
and not n_expr
isa ANullExpr then evaluate_expr
(v
, recv
)
3189 # Evaluate, store and return the default value of the attribute
3190 private fun evaluate_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable): RuntimeVariable
3192 var oldnode
= v
.current_node
3193 v
.current_node
= self
3194 var old_frame
= v
.frame
3195 var frame
= new StaticFrame(v
, self.mreadpropdef
.as(not null), recv
.mcasttype
.undecorate
.as(MClassType), [recv
])
3199 var mtype
= self.mtype
3200 assert mtype
!= null
3202 var nexpr
= self.n_expr
3203 var nblock
= self.n_block
3204 if nexpr
!= null then
3205 value
= v
.expr
(nexpr
, mtype
)
3206 else if nblock
!= null then
3207 value
= v
.new_var
(mtype
)
3208 frame
.returnvar
= value
3209 frame
.returnlabel
= v
.get_name
("RET_LABEL")
3212 v
.add
("{frame.returnlabel.as(not null)}:(void)0;")
3218 v
.write_attribute
(self.mpropdef
.mproperty
, recv
, value
)
3221 v
.current_node
= oldnode
3226 fun check_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3228 var nexpr
= self.n_expr
3229 if nexpr
!= null then return
3231 var oldnode
= v
.current_node
3232 v
.current_node
= self
3233 var old_frame
= v
.frame
3234 var frame
= new StaticFrame(v
, self.mpropdef
.as(not null), recv
.mtype
.as(MClassType), [recv
])
3236 # Force read to check the initialization
3237 v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3239 v
.current_node
= oldnode
3243 redef class AClassdef
3244 private fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
3246 if mpropdef
.mproperty
.is_root_init
then
3247 assert arguments
.length
== 1
3248 if not mpropdef
.is_intro
then
3249 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
3259 # Try to compile self as an expression
3260 # Do not call this method directly, use `v.expr` instead
3261 private fun expr
(v
: AbstractCompilerVisitor): nullable RuntimeVariable
3263 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\
");")
3264 var mtype
= self.mtype
3265 if mtype
== null then
3268 var res
= v
.new_var
(mtype
)
3269 v
.add
("/* {res} = NOT YET {class_name} */")
3274 # Try to compile self as a statement
3275 # Do not call this method directly, use `v.stmt` instead
3276 private fun stmt
(v
: AbstractCompilerVisitor)
3282 redef class ABlockExpr
3285 for e
in self.n_expr
do v
.stmt
(e
)
3289 var last
= self.n_expr
.last
3290 for e
in self.n_expr
do
3291 if e
== last
then break
3294 return v
.expr
(last
, null)
3298 redef class AVardeclExpr
3301 var variable
= self.variable
.as(not null)
3302 var ne
= self.n_expr
3304 var i
= v
.expr
(ne
, variable
.declared_type
)
3305 v
.assign
(v
.variable
(variable
), i
)
3310 redef class AVarExpr
3313 var res
= v
.variable
(self.variable
.as(not null))
3314 var mtype
= self.mtype
.as(not null)
3315 return v
.autoadapt
(res
, mtype
)
3319 redef class AVarAssignExpr
3322 var variable
= self.variable
.as(not null)
3323 var i
= v
.expr
(self.n_value
, variable
.declared_type
)
3324 v
.assign
(v
.variable
(variable
), i
)
3329 redef class AVarReassignExpr
3332 var variable
= self.variable
.as(not null)
3333 var vari
= v
.variable
(variable
)
3334 var value
= v
.expr
(self.n_value
, variable
.declared_type
)
3335 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [vari
, value
])
3337 v
.assign
(v
.variable
(variable
), res
)
3341 redef class ASelfExpr
3342 redef fun expr
(v
) do return v
.frame
.arguments
.first
3345 redef class AImplicitSelfExpr
3346 redef fun expr
(v
) do
3347 if not is_sys
then return super
3348 return v
.new_expr
("glob_sys", mtype
.as(not null))
3352 redef class AEscapeExpr
3353 redef fun stmt
(v
) do v
.add
("goto BREAK_{v.escapemark_name(self.escapemark)};")
3356 redef class AReturnExpr
3359 var nexpr
= self.n_expr
3360 if nexpr
!= null then
3361 var returnvar
= v
.frame
.returnvar
.as(not null)
3362 var i
= v
.expr
(nexpr
, returnvar
.mtype
)
3363 v
.assign
(returnvar
, i
)
3365 v
.add
("goto {v.frame.returnlabel.as(not null)};")
3369 redef class AAbortExpr
3370 redef fun stmt
(v
) do v
.add_abort
("Aborted")
3376 var cond
= v
.expr_bool
(self.n_expr
)
3377 v
.add
("if ({cond})\{")
3386 var res
= v
.new_var
(self.mtype
.as(not null))
3387 var cond
= v
.expr_bool
(self.n_expr
)
3388 v
.add
("if ({cond})\{")
3389 v
.assign
(res
, v
.expr
(self.n_then
.as(not null), null))
3391 v
.assign
(res
, v
.expr
(self.n_else
.as(not null), null))
3397 redef class AIfexprExpr
3400 var res
= v
.new_var
(self.mtype
.as(not null))
3401 var cond
= v
.expr_bool
(self.n_expr
)
3402 v
.add
("if ({cond})\{")
3403 v
.assign
(res
, v
.expr
(self.n_then
, null))
3405 v
.assign
(res
, v
.expr
(self.n_else
, null))
3414 if self.n_catch
!= null then
3415 v
.add
("catchStack.cursor += 1;")
3416 v
.add
("if(!setjmp(catchStack.envs[catchStack.cursor]))\{")
3417 v
.stmt
(self.n_block
)
3418 v
.add
("catchStack.cursor -= 1;")
3420 v
.add
("catchStack.cursor -= 1;")
3421 v
.stmt
(self.n_catch
)
3424 v
.stmt
(self.n_block
)
3426 v
.add_escape_label
(break_mark
)
3430 redef class AWhileExpr
3434 var cond
= v
.expr_bool
(self.n_expr
)
3435 v
.add
("if (!{cond}) break;")
3436 v
.stmt
(self.n_block
)
3437 v
.add_escape_label
(continue_mark
)
3439 v
.add_escape_label
(break_mark
)
3443 redef class ALoopExpr
3447 v
.stmt
(self.n_block
)
3448 v
.add_escape_label
(continue_mark
)
3450 v
.add_escape_label
(break_mark
)
3454 redef class AForExpr
3457 for g
in n_groups
do
3458 var cl
= v
.expr
(g
.n_expr
, null)
3459 var it_meth
= g
.method_iterator
3460 assert it_meth
!= null
3461 var it
= v
.compile_callsite
(it_meth
, [cl
])
3466 for g
in n_groups
do
3468 var isok_meth
= g
.method_is_ok
3469 assert isok_meth
!= null
3470 var ok
= v
.compile_callsite
(isok_meth
, [it
])
3472 v
.add
("if(!{ok}) break;")
3473 if g
.variables
.length
== 1 then
3474 var item_meth
= g
.method_item
3475 assert item_meth
!= null
3476 var i
= v
.compile_callsite
(item_meth
, [it
])
3478 v
.assign
(v
.variable
(g
.variables
.first
), i
)
3479 else if g
.variables
.length
== 2 then
3480 var key_meth
= g
.method_key
3481 assert key_meth
!= null
3482 var i
= v
.compile_callsite
(key_meth
, [it
])
3484 v
.assign
(v
.variable
(g
.variables
[0]), i
)
3485 var item_meth
= g
.method_item
3486 assert item_meth
!= null
3487 i
= v
.compile_callsite
(item_meth
, [it
])
3489 v
.assign
(v
.variable
(g
.variables
[1]), i
)
3494 v
.stmt
(self.n_block
)
3495 v
.add_escape_label
(continue_mark
)
3496 for g
in n_groups
do
3497 var next_meth
= g
.method_next
3498 assert next_meth
!= null
3499 v
.compile_callsite
(next_meth
, [g
.it
])
3502 v
.add_escape_label
(break_mark
)
3504 for g
in n_groups
do
3505 var method_finish
= g
.method_finish
3506 if method_finish
!= null then
3507 # TODO: Find a way to call this also in long escape (e.g. return)
3508 v
.compile_callsite
(method_finish
, [g
.it
])
3514 redef class AForGroup
3515 # C variable representing the iterator
3516 private var it
: RuntimeVariable is noinit
3519 redef class AAssertExpr
3522 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return
3524 var cond
= v
.expr_bool
(self.n_expr
)
3525 v
.add
("if (unlikely(!{cond})) \{")
3529 v
.add_abort
("Assert '{nid.text}' failed")
3531 v
.add_abort
("Assert failed")
3540 var res
= v
.new_var
(self.mtype
.as(not null))
3541 var i1
= v
.expr_bool
(self.n_expr
)
3542 v
.add
("if ({i1}) \{")
3545 var i2
= v
.expr_bool
(self.n_expr2
)
3546 v
.add
("{res} = {i2};")
3552 redef class AImpliesExpr
3555 var res
= v
.new_var
(self.mtype
.as(not null))
3556 var i1
= v
.expr_bool
(self.n_expr
)
3557 v
.add
("if (!{i1}) \{")
3560 var i2
= v
.expr_bool
(self.n_expr2
)
3561 v
.add
("{res} = {i2};")
3567 redef class AAndExpr
3570 var res
= v
.new_var
(self.mtype
.as(not null))
3571 var i1
= v
.expr_bool
(self.n_expr
)
3572 v
.add
("if (!{i1}) \{")
3575 var i2
= v
.expr_bool
(self.n_expr2
)
3576 v
.add
("{res} = {i2};")
3582 redef class ANotExpr
3585 var cond
= v
.expr_bool
(self.n_expr
)
3586 return v
.new_expr
("!{cond}", self.mtype
.as(not null))
3590 redef class AOrElseExpr
3593 var res
= v
.new_var
(self.mtype
.as(not null))
3594 var i1
= v
.expr
(self.n_expr
, null)
3596 if not v
.maybenull
(i1
) then return i1
3598 v
.add
("if ({i1}!=NULL) \{")
3601 var i2
= v
.expr
(self.n_expr2
, null)
3608 redef class AIntegerExpr
3609 redef fun expr
(v
) do
3610 if value
isa Int then return v
.int_instance
(value
.as(Int))
3611 if value
isa Byte then return v
.byte_instance
(value
.as(Byte))
3612 if value
isa Int8 then return v
.int8_instance
(value
.as(Int8))
3613 if value
isa Int16 then return v
.int16_instance
(value
.as(Int16))
3614 if value
isa UInt16 then return v
.uint16_instance
(value
.as(UInt16))
3615 if value
isa Int32 then return v
.int32_instance
(value
.as(Int32))
3616 if value
isa UInt32 then return v
.uint32_instance
(value
.as(UInt32))
3617 # Should never happen
3622 redef class AFloatExpr
3623 redef fun expr
(v
) do return v
.float_instance
("{self.n_float.text}") # FIXME use value, not n_float
3626 redef class ACharExpr
3627 redef fun expr
(v
) do
3628 if is_ascii
then return v
.byte_instance
(value
.as(not null).ascii
)
3629 if is_code_point
then return v
.int_instance
(value
.as(not null).code_point
)
3630 return v
.char_instance
(self.value
.as(not null))
3634 redef class AArrayExpr
3637 var mtype
= self.element_mtype
.as(not null)
3638 var array
= new Array[RuntimeVariable]
3639 var res
= v
.array_instance
(array
, mtype
)
3641 var old_comprehension
= v
.frame
.comprehension
3642 v
.frame
.comprehension
= res
3643 for nexpr
in self.n_exprs
do
3646 v
.frame
.comprehension
= old_comprehension
3652 redef class AugmentedStringFormExpr
3653 # Factorize the making of a `Regex` object from a literal prefixed string
3654 protected fun make_re
(v
: AbstractCompilerVisitor, rs
: RuntimeVariable): nullable RuntimeVariable do
3657 var res
= v
.compile_callsite
(re
, [rs
])
3659 print
"Cannot call property `to_re` on {self}"
3662 for i
in suffix
.chars
do
3664 var ign
= ignore_case
3666 v
.compile_callsite
(ign
, [res
, v
.bool_instance
(true)])
3672 v
.compile_callsite
(nl
, [res
, v
.bool_instance
(true)])
3678 v
.compile_callsite
(ext
, [res
, v
.bool_instance
(false)])
3681 # Should not happen, this needs to be updated
3682 # along with the addition of new suffixes
3689 redef class AStringFormExpr
3690 redef fun expr
(v
) do return v
.string_instance
(value
)
3693 redef class AStringExpr
3694 redef fun expr
(v
) do
3695 var s
= v
.string_instance
(value
)
3696 if is_string
then return s
3697 if is_bytestring
then
3698 var ns
= v
.native_string_instance
(bytes
.items
, bytes
.length
)
3699 var ln
= v
.int_instance
(bytes
.length
)
3700 var cs
= to_bytes_with_copy
3702 var res
= v
.compile_callsite
(cs
, [ns
, ln
])
3706 var res
= make_re
(v
, s
)
3710 print
"Unimplemented prefix or suffix for {self}"
3717 redef class ASuperstringExpr
3720 var type_string
= v
.mmodule
.string_type
3722 # Collect elements of the superstring
3723 var array
= new Array[AExpr]
3724 for ne
in self.n_exprs
do
3725 # Drop literal empty string.
3726 # They appears in things like "{a}" that is ["", a, ""]
3727 if ne
isa AStringFormExpr and ne
.value
== "" then continue # skip empty sub-strings
3731 # Store the allocated native array in a static variable
3733 var varonce
= v
.get_name
("varonce")
3734 v
.add
("if (unlikely({varonce}==NULL)) \{")
3736 # The native array that will contains the elements to_s-ized.
3737 # For fast concatenation.
3738 var a
= v
.native_array_instance
(type_string
, v
.int_instance
(array
.length
))
3740 v
.add_decl
("static {a.mtype.ctype} {varonce};")
3742 # Pre-fill the array with the literal string parts.
3743 # So they do not need to be filled again when reused
3744 for i
in [0..array
.length
[ do
3746 if not ne
isa AStringFormExpr then continue
3747 var e
= v
.expr
(ne
, null)
3748 v
.native_array_set
(a
, i
, e
)
3752 # Take the native-array from the store.
3753 # The point is to prevent that some recursive execution use (and corrupt) the same native array
3754 # WARNING: not thread safe! (FIXME?)
3755 v
.add
("{a} = {varonce};")
3756 v
.add
("{varonce} = NULL;")
3759 # Stringify the elements and put them in the native array
3760 var to_s_method
= v
.get_property
("to_s", v
.object_type
)
3761 for i
in [0..array
.length
[ do
3763 if ne
isa AStringFormExpr then continue
3764 var e
= v
.expr
(ne
, null)
3765 # Skip the `to_s` if the element is already a String
3766 if not e
.mcasttype
.is_subtype
(v
.compiler
.mainmodule
, null, type_string
) then
3767 e
= v
.send
(to_s_method
, [e
]).as(not null)
3769 v
.native_array_set
(a
, i
, e
)
3772 # Fast join the native string to get the result
3773 var res
= v
.send
(v
.get_property
("native_to_s", a
.mtype
), [a
])
3776 if is_re
then res
= make_re
(v
, res
)
3778 # We finish to work with the native array,
3779 # so store it so that it can be reused
3780 v
.add
("{varonce} = {a};")
3786 redef class ACrangeExpr
3789 var i1
= v
.expr
(self.n_expr
, null)
3790 var i2
= v
.expr
(self.n_expr2
, null)
3791 var mtype
= self.mtype
.as(MClassType)
3792 var res
= v
.init_instance
(mtype
)
3793 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3798 redef class AOrangeExpr
3801 var i1
= v
.expr
(self.n_expr
, null)
3802 var i2
= v
.expr
(self.n_expr2
, null)
3803 var mtype
= self.mtype
.as(MClassType)
3804 var res
= v
.init_instance
(mtype
)
3805 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3810 redef class ATrueExpr
3811 redef fun expr
(v
) do return v
.bool_instance
(true)
3814 redef class AFalseExpr
3815 redef fun expr
(v
) do return v
.bool_instance
(false)
3818 redef class ANullExpr
3819 redef fun expr
(v
) do return v
.null_instance
3822 redef class AIsaExpr
3825 var i
= v
.expr
(self.n_expr
, null)
3826 var cast_type
= self.cast_type
3827 if cast_type
== null then return null # no-no on broken node
3828 return v
.type_test
(i
, cast_type
, "isa")
3832 redef class AAsCastExpr
3835 var i
= v
.expr
(self.n_expr
, null)
3836 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3838 v
.add_cast
(i
, self.mtype
.as(not null), "as")
3843 redef class AAsNotnullExpr
3846 var i
= v
.expr
(self.n_expr
, null)
3847 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3849 if not v
.maybenull
(i
) then return i
3851 v
.add
("if (unlikely({i} == NULL)) \{")
3852 v
.add_abort
("Cast failed")
3858 redef class AParExpr
3859 redef fun expr
(v
) do return v
.expr
(self.n_expr
, null)
3862 redef class AOnceExpr
3865 var mtype
= self.mtype
.as(not null)
3866 var name
= v
.get_name
("varonce")
3867 var guard
= v
.get_name
(name
+ "_guard")
3868 v
.add_decl
("static {mtype.ctype} {name};")
3869 v
.add_decl
("static int {guard};")
3870 var res
= v
.new_var
(mtype
)
3871 v
.add
("if (likely({guard})) \{")
3872 v
.add
("{res} = {name};")
3874 var i
= v
.expr
(self.n_expr
, mtype
)
3875 v
.add
("{res} = {i};")
3876 v
.add
("{name} = {res};")
3877 v
.add
("{guard} = 1;")
3883 redef class ASendExpr
3886 var recv
= v
.expr
(self.n_expr
, null)
3887 var callsite
= self.callsite
.as(not null)
3888 if callsite
.is_broken
then return null
3889 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3890 return v
.compile_callsite
(callsite
, args
)
3894 redef class ASendReassignFormExpr
3897 var recv
= v
.expr
(self.n_expr
, null)
3898 var callsite
= self.callsite
.as(not null)
3899 if callsite
.is_broken
then return
3900 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3902 var value
= v
.expr
(self.n_value
, null)
3904 var left
= v
.compile_callsite
(callsite
, args
)
3907 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [left
, value
])
3911 v
.compile_callsite
(self.write_callsite
.as(not null), args
)
3915 redef class ASuperExpr
3918 var frame
= v
.frame
.as(not null)
3919 var recv
= frame
.arguments
.first
3921 var callsite
= self.callsite
3922 if callsite
!= null then
3923 if callsite
.is_broken
then return null
3926 if self.n_args
.n_exprs
.is_empty
then
3927 # Add automatic arguments for the super init call
3929 for i
in [0..callsite
.msignature
.arity
[ do
3930 args
.add
(frame
.arguments
[i
+1])
3933 args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3937 var res
= v
.compile_callsite
(callsite
, args
)
3941 var mpropdef
= self.mpropdef
.as(not null)
3944 if self.n_args
.n_exprs
.is_empty
then
3945 args
= frame
.arguments
3947 args
= v
.varargize
(mpropdef
, signaturemap
, recv
, self.n_args
.n_exprs
)
3950 # Standard call-next-method
3951 return v
.supercall
(mpropdef
, recv
.mtype
.as(MClassType), args
)
3955 redef class ANewExpr
3958 var mtype
= self.recvtype
3959 assert mtype
!= null
3961 if mtype
.mclass
.name
== "NativeArray" then
3962 assert self.n_args
.n_exprs
.length
== 1
3963 var l
= v
.expr
(self.n_args
.n_exprs
.first
, null)
3964 assert mtype
isa MGenericType
3965 var elttype
= mtype
.arguments
.first
3966 return v
.native_array_instance
(elttype
, l
)
3969 var callsite
= self.callsite
3970 if callsite
== null then return v
.init_instance_or_extern
(mtype
)
3971 if callsite
.is_broken
then return null
3974 # new factories are badly implemented.
3975 # They assume a stub temporary receiver exists.
3976 # This temporary receiver is required because it
3977 # currently holds the method and the formal types.
3979 # However, this object could be reused if the formal types are the same.
3980 # Therefore, the following code will `once` it in these case
3981 if callsite
.mproperty
.is_new
and not mtype
.need_anchor
then
3982 var name
= v
.get_name
("varoncenew")
3983 var guard
= v
.get_name
(name
+ "_guard")
3984 v
.add_decl
("static {mtype.ctype} {name};")
3985 v
.add_decl
("static int {guard};")
3986 recv
= v
.new_var
(mtype
)
3987 v
.add
("if (likely({guard})) \{")
3988 v
.add
("{recv} = {name};")
3990 var i
= v
.init_instance_or_extern
(mtype
)
3991 v
.add
("{recv} = {i};")
3992 v
.add
("{name} = {recv};")
3993 v
.add
("{guard} = 1;")
3996 recv
= v
.init_instance_or_extern
(mtype
)
3999 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
4000 var res2
= v
.compile_callsite
(callsite
, args
)
4001 if res2
!= null then
4002 #self.debug("got {res2} from {mproperty}. drop {recv}")
4009 redef class AAttrExpr
4012 var recv
= v
.expr
(self.n_expr
, null)
4013 var mproperty
= self.mproperty
.as(not null)
4014 return v
.read_attribute
(mproperty
, recv
)
4018 redef class AAttrAssignExpr
4021 var recv
= v
.expr
(self.n_expr
, null)
4022 var i
= v
.expr
(self.n_value
, null)
4023 var mproperty
= self.mproperty
.as(not null)
4024 v
.write_attribute
(mproperty
, recv
, i
)
4029 redef class AAttrReassignExpr
4032 var recv
= v
.expr
(self.n_expr
, null)
4033 var value
= v
.expr
(self.n_value
, null)
4034 var mproperty
= self.mproperty
.as(not null)
4035 var attr
= v
.read_attribute
(mproperty
, recv
)
4036 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [attr
, value
])
4038 v
.write_attribute
(mproperty
, recv
, res
)
4042 redef class AIssetAttrExpr
4045 var recv
= v
.expr
(self.n_expr
, null)
4046 var mproperty
= self.mproperty
.as(not null)
4047 return v
.isset_attribute
(mproperty
, recv
)
4051 redef class AVarargExpr
4054 return v
.expr
(self.n_expr
, null)
4058 redef class ANamedargExpr
4061 return v
.expr
(self.n_expr
, null)
4065 redef class ADebugTypeExpr
4074 redef class Array[E
]
4075 # Return a new `Array` with the elements only contened in self and not in `o`
4076 fun -(o
: Array[E
]): Array[E
] do
4077 var res
= new Array[E
]
4078 for e
in self do if not o
.has
(e
) then res
.add
(e
)
4084 # All `MProperty` associated to all `MClassDef` of `mclass`
4085 fun properties
(mclass
: MClass): Set[MProperty] do
4086 if not self.properties_cache
.has_key
(mclass
) then
4087 var properties
= new HashSet[MProperty]
4088 var parents
= new Array[MClass]
4089 if self.flatten_mclass_hierarchy
.has
(mclass
) then
4090 parents
.add_all
(mclass
.in_hierarchy
(self).direct_greaters
)
4092 for parent
in parents
do
4093 properties
.add_all
(self.properties
(parent
))
4095 for mclassdef
in mclass
.mclassdefs
do
4096 if not self.in_importation
<= mclassdef
.mmodule
then continue
4097 for mprop
in mclassdef
.intro_mproperties
do
4098 properties
.add
(mprop
)
4101 self.properties_cache
[mclass
] = properties
4103 return properties_cache
[mclass
]
4105 private var properties_cache
: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
4107 # Write FFI and nitni results to file
4108 fun finalize_ffi
(c
: AbstractCompiler) do end
4110 # Give requided addinional system libraries (as given to LD_LIBS)
4111 # Note: can return null instead of an empty set
4112 fun collect_linker_libs
: nullable Array[String] do return null
4115 # Create a tool context to handle options and paths
4116 var toolcontext
= new ToolContext
4118 toolcontext
.tooldescription
= "Usage: nitc [OPTION]... file.nit...\nCompiles Nit programs."
4120 # We do not add other options, so process them now!
4121 toolcontext
.process_options
(args
)
4123 # We need a model to collect stufs
4124 var model
= new Model
4125 # An a model builder to parse files
4126 var modelbuilder
= new ModelBuilder(model
, toolcontext
)
4128 var arguments
= toolcontext
.option_context
.rest
4129 if arguments
.length
> 1 and toolcontext
.opt_output
.value
!= null then
4130 print
"Option Error: --output needs a single source file. Do you prefer --dir?"
4134 # Here we load an process all modules passed on the command line
4135 var mmodules
= modelbuilder
.parse
(arguments
)
4137 if mmodules
.is_empty
then toolcontext
.quit
4139 modelbuilder
.run_phases
4141 for mmodule
in mmodules
do
4142 toolcontext
.info
("*** PROCESS {mmodule} ***", 1)
4144 toolcontext
.run_global_phases
(ms
)