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 List[CodeFile]
582 # Initialize a visitor specific for a compiler engine
583 fun new_visitor
: VISITOR is abstract
585 # Where global declaration are stored (the main .h)
586 var header
: CodeWriter is writable, noinit
588 # Additionnal linker script for `ld`.
589 # Mainly used to do specific link-time symbol resolution
590 var linker_script
= new Array[String]
592 # Provide a declaration that can be requested (before or latter) by a visitor
593 fun provide_declaration
(key
: String, s
: String)
595 if self.provided_declarations
.has_key
(key
) then
596 assert self.provided_declarations
[key
] == s
598 self.provided_declarations
[key
] = s
601 private var provided_declarations
= new HashMap[String, String]
603 private var requirers_of_declarations
= new HashMap[String, ANode]
605 # Builds the .c and .h files to be used when generating a Stack Trace
606 # Binds the generated C function names to Nit function names
607 fun build_c_to_nit_bindings
609 var compile_dir
= toolchain
.compile_dir
611 var stream
= new FileWriter.open
("{compile_dir}/c_functions_hash.c")
612 stream
.write
("#include <string.h>\n")
613 stream
.write
("#include <stdlib.h>\n")
614 stream
.write
("#include \"c_functions_hash
.h\
"\n")
615 stream
.write
("typedef struct C_Nit_Names\{char* name; char* nit_name;\}C_Nit_Names;\n")
616 stream
.write
("const char* get_nit_name(register const char* procproc, register unsigned int len)\{\n")
617 stream
.write
("char* procname = malloc(len+1);")
618 stream
.write
("memcpy(procname, procproc, len);")
619 stream
.write
("procname[len] = '\\0';")
620 stream
.write
("static const C_Nit_Names map[{names.length}] = \{\n")
621 for i
in names
.keys
do
623 stream.write(i.escape_to_c)
624 stream.write("\
",\"")
625 stream.write(names[i].escape_to_c)
626 stream.write("\
"\},\n")
628 stream
.write
("\};\n")
629 stream
.write
("int i;")
630 stream
.write
("for(i = 0; i < {names.length}; i++)\{")
631 stream
.write
("if(strcmp(procname,map[i].name) == 0)\{")
632 stream
.write
("free(procname);")
633 stream
.write
("return map[i].nit_name;")
636 stream
.write
("free(procname);")
637 stream
.write
("return NULL;")
641 stream
= new FileWriter.open
("{compile_dir}/c_functions_hash.h")
642 stream
.write
("const char* get_nit_name(register const char* procname, register unsigned int len);\n")
645 extern_bodies
.add
(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
649 # This method call compile_header_strucs method that has to be refined
650 fun compile_header
do
651 self.header
.add_decl
("#include <stdlib.h>")
652 self.header
.add_decl
("#include <stdio.h>")
653 self.header
.add_decl
("#include <string.h>")
654 self.header
.add_decl
("#include <sys/types.h>\n")
655 self.header
.add_decl
("#include <unistd.h>\n")
656 self.header
.add_decl
("#include <stdint.h>\n")
657 self.header
.add_decl
("#ifdef __linux__")
658 self.header
.add_decl
(" #include <endian.h>")
659 self.header
.add_decl
("#endif")
660 self.header
.add_decl
("#include <inttypes.h>\n")
661 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
662 self.header
.add_decl
("#ifdef __APPLE__")
663 self.header
.add_decl
(" #include <libkern/OSByteOrder.h>")
664 self.header
.add_decl
(" #define be32toh(x) OSSwapBigToHostInt32(x)")
665 self.header
.add_decl
("#endif")
666 self.header
.add_decl
("#ifdef __pnacl__")
667 self.header
.add_decl
(" #define be16toh(val) (((val) >> 8) | ((val) << 8))")
668 self.header
.add_decl
(" #define be32toh(val) ((be16toh((val) << 16) | (be16toh((val) >> 16))))")
669 self.header
.add_decl
("#endif")
670 self.header
.add_decl
("#ifdef ANDROID")
671 self.header
.add_decl
(" #ifndef be32toh")
672 self.header
.add_decl
(" #define be32toh(val) betoh32(val)")
673 self.header
.add_decl
(" #endif")
674 self.header
.add_decl
(" #include <android/log.h>")
675 self.header
.add_decl
(" #define PRINT_ERROR(...) (void)__android_log_print(ANDROID_LOG_WARN, \"Nit\
", __VA_ARGS__)")
676 self.header
.add_decl
("#else")
677 self.header
.add_decl
(" #define PRINT_ERROR(...) fprintf(stderr, __VA_ARGS__)")
678 self.header
.add_decl
("#endif")
680 compile_header_structs
681 compile_nitni_structs
683 var gccd_disable
= modelbuilder
.toolcontext
.opt_no_gcc_directive
.value
684 if gccd_disable
.has
("noreturn") or gccd_disable
.has
("all") then
685 # Signal handler function prototype
686 self.header
.add_decl
("void fatal_exit(int);")
688 self.header
.add_decl
("void fatal_exit(int) __attribute__ ((noreturn));")
691 if gccd_disable
.has
("likely") or gccd_disable
.has
("all") then
692 self.header
.add_decl
("#define likely(x) (x)")
693 self.header
.add_decl
("#define unlikely(x) (x)")
694 else if gccd_disable
.has
("correct-likely") then
695 # invert the `likely` definition
696 # Used by masochists to bench the worst case
697 self.header
.add_decl
("#define likely(x) __builtin_expect((x),0)")
698 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),1)")
700 self.header
.add_decl
("#define likely(x) __builtin_expect((x),1)")
701 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),0)")
704 # Global variable used by intern methods
705 self.header
.add_decl
("extern int glob_argc;")
706 self.header
.add_decl
("extern char **glob_argv;")
707 self.header
.add_decl
("extern val *glob_sys;")
710 # Declaration of structures for live Nit types
711 protected fun compile_header_structs
is abstract
713 # Declaration of structures for nitni undelying the FFI
714 protected fun compile_nitni_structs
716 self.header
.add_decl
"""
717 /* Native reference to Nit objects */
718 /* This structure is used to represent every Nit type in extern methods and custom C code. */
720 struct nitni_ref *next,
721 *prev; /* adjacent global references in global list */
722 int count; /* number of time this global reference has been marked */
725 /* List of global references from C code to Nit objects */
726 /* Instanciated empty at init of Nit system and filled explicitly by user in C code */
727 struct nitni_global_ref_list_t {
728 struct nitni_ref *head, *tail;
730 extern struct nitni_global_ref_list_t *nitni_global_ref_list;
732 /* Initializer of global reference list */
733 extern void nitni_global_ref_list_init();
735 /* Intern function to add a global reference to the list */
736 extern void nitni_global_ref_add( struct nitni_ref *ref );
738 /* Intern function to remove a global reference from the list */
739 extern void nitni_global_ref_remove( struct nitni_ref *ref );
741 /* Increase count on an existing global reference */
742 extern void nitni_global_ref_incr( struct nitni_ref *ref );
744 /* Decrease count on an existing global reference */
745 extern void nitni_global_ref_decr( struct nitni_ref *ref );
749 fun compile_finalizer_function
751 var finalizable_type
= mainmodule
.finalizable_type
752 if finalizable_type
== null then return
754 var finalize_meth
= mainmodule
.try_get_primitive_method
("finalize", finalizable_type
.mclass
)
756 if finalize_meth
== null then
757 modelbuilder
.toolcontext
.error
(null, "Error: the `Finalizable` class does not declare the `finalize` method.")
761 var v
= self.new_visitor
762 v
.add_decl
"void gc_finalize (void *obj, void *client_data) \{"
763 var recv
= v
.new_expr
("obj", finalizable_type
)
764 v
.send
(finalize_meth
, [recv
])
768 # Generate the main C function.
772 # * allocate the Sys object if it exists
773 # * call init if is exists
774 # * call main if it exists
775 fun compile_main_function
777 var v
= self.new_visitor
778 v
.add_decl
("#include <signal.h>")
779 var platform
= target_platform
781 var no_main
= platform
.no_main
or modelbuilder
.toolcontext
.opt_no_main
.value
783 if platform
.supports_libunwind
then
784 v
.add_decl
("#ifndef NO_STACKTRACE")
785 v
.add_decl
("#define UNW_LOCAL_ONLY")
786 v
.add_decl
("#include <libunwind.h>")
787 v
.add_decl
("#include \"c_functions_hash
.h\
"")
790 v
.add_decl
("int glob_argc;")
791 v
.add_decl
("char **glob_argv;")
792 v
.add_decl
("val *glob_sys;")
794 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
795 for tag
in count_type_test_tags
do
796 v
.add_decl
("long count_type_test_resolved_{tag};")
797 v
.add_decl
("long count_type_test_unresolved_{tag};")
798 v
.add_decl
("long count_type_test_skipped_{tag};")
799 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
800 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
801 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
805 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
806 v
.add_decl
("long count_invoke_by_tables;")
807 v
.add_decl
("long count_invoke_by_direct;")
808 v
.add_decl
("long count_invoke_by_inline;")
809 v
.compiler
.header
.add_decl
("extern long count_invoke_by_tables;")
810 v
.compiler
.header
.add_decl
("extern long count_invoke_by_direct;")
811 v
.compiler
.header
.add_decl
("extern long count_invoke_by_inline;")
814 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
815 v
.add_decl
("long count_attr_reads = 0;")
816 v
.add_decl
("long count_isset_checks = 0;")
817 v
.compiler
.header
.add_decl
("extern long count_attr_reads;")
818 v
.compiler
.header
.add_decl
("extern long count_isset_checks;")
821 v
.add_decl
("static void show_backtrace(void) \{")
822 if platform
.supports_libunwind
then
823 v
.add_decl
("#ifndef NO_STACKTRACE")
824 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
825 v
.add_decl
("unw_cursor_t cursor;")
826 v
.add_decl
("if(opt==NULL)\{")
827 v
.add_decl
("unw_context_t uc;")
828 v
.add_decl
("unw_word_t ip;")
829 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
830 v
.add_decl
("unw_getcontext(&uc);")
831 v
.add_decl
("unw_init_local(&cursor, &uc);")
832 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
833 v
.add_decl
("PRINT_ERROR(\"-- Stack Trace ------------------------------\\n\
");")
834 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
835 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
836 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
837 v
.add_decl
(" const char* recv = get_nit_name(procname, strlen(procname));")
838 v
.add_decl
(" if (recv != NULL)\{")
839 v
.add_decl
(" PRINT_ERROR(\"` %s\\n\", recv);")
840 v.add_decl(" \}else\{")
841 v.add_decl(" PRINT_ERROR(\"` %s\\n\
", procname);")
844 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
845 v
.add_decl
("free(procname);")
847 v
.add_decl
("#endif /* NO_STACKTRACE */")
851 v
.add_decl
("void sig_handler(int signo)\{")
852 v
.add_decl
("PRINT_ERROR(\"Caught signal
: %s\\n\
", strsignal(signo));")
853 v
.add_decl
("show_backtrace();")
855 v
.add_decl
("signal(signo, SIG_DFL);")
856 v
.add_decl
("kill(getpid(), signo);")
859 v
.add_decl
("void fatal_exit(int status) \{")
860 v
.add_decl
("show_backtrace();")
861 v
.add_decl
("exit(status);")
865 v
.add_decl
("int nit_main(int argc, char** argv) \{")
867 v
.add_decl
("int main(int argc, char** argv) \{")
870 v
.add
"#if !defined(__ANDROID__) && !defined(TARGET_OS_IPHONE)"
871 v
.add
("signal(SIGABRT, sig_handler);")
872 v
.add
("signal(SIGFPE, sig_handler);")
873 v
.add
("signal(SIGILL, sig_handler);")
874 v
.add
("signal(SIGINT, sig_handler);")
875 v
.add
("signal(SIGTERM, sig_handler);")
876 v
.add
("signal(SIGSEGV, sig_handler);")
878 v
.add
("signal(SIGPIPE, SIG_IGN);")
880 v
.add
("glob_argc = argc; glob_argv = argv;")
881 v
.add
("initialize_gc_option();")
883 v
.add
"initialize_nitni_global_refs();"
885 var main_type
= mainmodule
.sys_type
886 if main_type
!= null then
887 var mainmodule
= v
.compiler
.mainmodule
888 var glob_sys
= v
.init_instance
(main_type
)
889 v
.add
("glob_sys = {glob_sys};")
890 var main_init
= mainmodule
.try_get_primitive_method
("init", main_type
.mclass
)
891 if main_init
!= null then
892 v
.send
(main_init
, [glob_sys
])
894 var main_method
= mainmodule
.try_get_primitive_method
("run", main_type
.mclass
) or else
895 mainmodule
.try_get_primitive_method
("main", main_type
.mclass
)
896 if main_method
!= null then
897 v
.send
(main_method
, [glob_sys
])
901 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
902 v
.add_decl
("long count_type_test_resolved_total = 0;")
903 v
.add_decl
("long count_type_test_unresolved_total = 0;")
904 v
.add_decl
("long count_type_test_skipped_total = 0;")
905 v
.add_decl
("long count_type_test_total_total = 0;")
906 for tag
in count_type_test_tags
do
907 v
.add_decl
("long count_type_test_total_{tag};")
908 v
.add
("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
909 v
.add
("count_type_test_resolved_total += count_type_test_resolved_{tag};")
910 v
.add
("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
911 v
.add
("count_type_test_skipped_total += count_type_test_skipped_{tag};")
912 v
.add
("count_type_test_total_total += count_type_test_total_{tag};")
914 v
.add
("printf(\"# dynamic count_type_test: total %l\\n\");")
915 v
.add
("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\
");")
916 var tags
= count_type_test_tags
.to_a
919 v
.add
("printf(\"{tag}\
");")
920 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
921 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
922 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
923 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\\n\
", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
927 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
928 v
.add_decl
("long count_invoke_total;")
929 v
.add
("count_invoke_total = count_invoke_by_tables + count_invoke_by_direct + count_invoke_by_inline;")
930 v
.add
("printf(\"# dynamic count_invocation: total %ld\\n\", count_invoke_total);")
931 v
.add
("printf(\"by table
: %ld
(%.2f
%%)\\n\
", count_invoke_by_tables, 100.0*count_invoke_by_tables/count_invoke_total);")
932 v
.add
("printf(\"direct
: %ld
(%.2f
%%)\\n\
", count_invoke_by_direct, 100.0*count_invoke_by_direct/count_invoke_total);")
933 v
.add
("printf(\"inlined
: %ld
(%.2f
%%)\\n\
", count_invoke_by_inline, 100.0*count_invoke_by_inline/count_invoke_total);")
936 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
937 v
.add
("printf(\"# dynamic attribute reads: %ld\\n\", count_attr_reads);")
938 v
.add
("printf(\"# dynamic isset checks: %ld\\n\", count_isset_checks);")
944 for m
in mainmodule
.in_importation
.greaters
do
945 var f
= "FILE_"+m
.c_name
946 v
.add
"const char {f}[] = \"{m.location.file.filename.escape_to_c}\
";"
947 provide_declaration
(f
, "extern const char {f}[];")
951 # Copile all C functions related to the [incr|decr]_ref features of the FFI
952 fun compile_nitni_global_ref_functions
954 var v
= self.new_visitor
956 struct nitni_global_ref_list_t *nitni_global_ref_list;
957 void initialize_nitni_global_refs() {
958 nitni_global_ref_list = (struct nitni_global_ref_list_t*)nit_alloc(sizeof(struct nitni_global_ref_list_t));
959 nitni_global_ref_list->head = NULL;
960 nitni_global_ref_list->tail = NULL;
963 void nitni_global_ref_add( struct nitni_ref *ref ) {
964 if ( nitni_global_ref_list->head == NULL ) {
965 nitni_global_ref_list->head = ref;
968 nitni_global_ref_list->tail->next = ref;
969 ref->prev = nitni_global_ref_list->tail;
971 nitni_global_ref_list->tail = ref;
976 void nitni_global_ref_remove( struct nitni_ref *ref ) {
977 if ( ref->prev == NULL ) {
978 nitni_global_ref_list->head = ref->next;
980 ref->prev->next = ref->next;
983 if ( ref->next == NULL ) {
984 nitni_global_ref_list->tail = ref->prev;
986 ref->next->prev = ref->prev;
990 extern void nitni_global_ref_incr( struct nitni_ref *ref ) {
991 if ( ref->count == 0 ) /* not registered */
994 nitni_global_ref_add( ref );
1000 extern void nitni_global_ref_decr( struct nitni_ref *ref ) {
1001 if ( ref->count == 1 ) /* was last reference */
1003 /* remove from list */
1004 nitni_global_ref_remove( ref );
1012 # List of additional files required to compile (FFI)
1013 var extern_bodies
= new Array[ExternFile]
1015 # List of source files to copy over to the compile dir
1016 var files_to_copy
= new Array[String]
1018 # This is used to avoid adding an extern file more than once
1019 private var seen_extern
= new ArraySet[String]
1021 # Generate code that initialize the attributes on a new instance
1022 fun generate_init_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1024 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1025 self.mainmodule
.linearize_mclassdefs
(cds
)
1027 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1028 npropdef
.init_expr
(v
, recv
)
1033 # Generate code that check if an attribute is correctly initialized
1034 fun generate_check_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1036 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1037 self.mainmodule
.linearize_mclassdefs
(cds
)
1039 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1040 npropdef
.check_expr
(v
, recv
)
1047 var count_type_test_tags
: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
1048 var count_type_test_resolved
: HashMap[String, Int] = init_count_type_test_tags
1049 var count_type_test_unresolved
: HashMap[String, Int] = init_count_type_test_tags
1050 var count_type_test_skipped
: HashMap[String, Int] = init_count_type_test_tags
1052 protected fun init_count_type_test_tags
: HashMap[String, Int]
1054 var res
= new HashMap[String, Int]
1055 for tag
in count_type_test_tags
do
1061 # Display stats about compilation process
1065 # * type tests against resolved types (`x isa Collection[Animal]`)
1066 # * type tests against unresolved types (`x isa Collection[E]`)
1067 # * type tests skipped
1068 # * type tests total
1071 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1072 print
"# static count_type_test"
1073 print
"\tresolved:\tunresolved\tskipped\ttotal"
1074 var count_type_test_total
= init_count_type_test_tags
1075 count_type_test_resolved
["total"] = 0
1076 count_type_test_unresolved
["total"] = 0
1077 count_type_test_skipped
["total"] = 0
1078 count_type_test_total
["total"] = 0
1079 for tag
in count_type_test_tags
do
1080 count_type_test_total
[tag
] = count_type_test_resolved
[tag
] + count_type_test_unresolved
[tag
] + count_type_test_skipped
[tag
]
1081 count_type_test_resolved
["total"] += count_type_test_resolved
[tag
]
1082 count_type_test_unresolved
["total"] += count_type_test_unresolved
[tag
]
1083 count_type_test_skipped
["total"] += count_type_test_skipped
[tag
]
1084 count_type_test_total
["total"] += count_type_test_total
[tag
]
1086 var count_type_test
= count_type_test_total
["total"]
1087 var tags
= count_type_test_tags
.to_a
1091 printn
"\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
1092 printn
"\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
1093 printn
"\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
1094 printn
"\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
1100 fun finalize_ffi_for_module
(mmodule
: MModule) do mmodule
.finalize_ffi
(self)
1103 # A file unit (may be more than one file if
1104 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
1107 var writers
= new Array[CodeWriter]
1108 var required_declarations
= new HashSet[String]
1111 # Where to store generated lines
1114 var lines
: List[String] = new List[String]
1115 var decl_lines
: List[String] = new List[String]
1117 # Add a line in the main part of the generated C
1118 fun add
(s
: String) do self.lines
.add
(s
)
1121 # (used for local or global declaration)
1122 fun add_decl
(s
: String) do self.decl_lines
.add
(s
)
1126 file
.writers
.add
(self)
1130 # A visitor on the AST of property definition that generate the C code.
1131 abstract class AbstractCompilerVisitor
1133 type COMPILER: AbstractCompiler
1135 # The associated compiler
1136 var compiler
: COMPILER
1138 # The current visited AST node
1139 var current_node
: nullable ANode = null is writable
1141 # The current `StaticFrame`
1142 var frame
: nullable StaticFrame = null is writable
1144 # Alias for self.compiler.mainmodule.object_type
1145 fun object_type
: MClassType do return self.compiler
.mainmodule
.object_type
1147 # Alias for self.compiler.mainmodule.bool_type
1148 fun bool_type
: MClassType do return self.compiler
.mainmodule
.bool_type
1150 var writer
: CodeWriter is noinit
1154 self.writer
= new CodeWriter(compiler
.files
.last
)
1157 # Force to get the primitive property named `name` in the instance `recv` or abort
1158 fun get_property
(name
: String, recv
: MType): MMethod
1160 assert recv
isa MClassType
1161 return self.compiler
.modelbuilder
.force_get_primitive_method
(self.current_node
, name
, recv
.mclass
, self.compiler
.mainmodule
)
1164 fun compile_callsite
(callsite
: CallSite, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1166 if callsite
.is_broken
then return null
1167 return self.send
(callsite
.mproperty
, arguments
)
1170 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable is abstract
1172 fun calloc_array
(ret_type
: MType, arguments
: Array[RuntimeVariable]) is abstract
1174 fun native_array_def
(pname
: String, ret_type
: nullable MType, arguments
: Array[RuntimeVariable]): Bool do return false
1176 # Return an element of a native array.
1177 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1178 fun native_array_get
(native_array
: RuntimeVariable, index
: Int): RuntimeVariable is abstract
1180 # Store an element in a native array.
1181 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1182 fun native_array_set
(native_array
: RuntimeVariable, index
: Int, value
: RuntimeVariable) is abstract
1184 # Evaluate `args` as expressions in the call of `mpropdef` on `recv`.
1185 # This method is used to manage varargs in signatures and returns the real array
1186 # of runtime variables to use in the call.
1187 fun varargize
(mpropdef
: MMethodDef, map
: nullable SignatureMap, recv
: RuntimeVariable, args
: SequenceRead[AExpr]): Array[RuntimeVariable]
1189 var msignature
= mpropdef
.msignature
.as(not null)
1190 var res
= new Array[RuntimeVariable]
1193 if msignature
.arity
== 0 then return res
1196 assert args
.length
== msignature
.arity
1198 res
.add
self.expr
(ne
, null)
1203 # Eval in order of arguments, not parameters
1204 var exprs
= new Array[RuntimeVariable].with_capacity
(args
.length
)
1206 exprs
.add
self.expr
(ne
, null)
1209 # Fill `res` with the result of the evaluation according to the mapping
1210 for i
in [0..msignature
.arity
[ do
1211 var param
= msignature
.mparameters
[i
]
1212 var j
= map
.map
.get_or_null
(i
)
1215 res
.add
(null_instance
)
1218 if param
.is_vararg
and args
[i
].vararg_decl
> 0 then
1219 var vararg
= exprs
.sub
(j
, args
[i
].vararg_decl
)
1220 var elttype
= param
.mtype
1221 var arg
= self.vararg_instance
(mpropdef
, recv
, vararg
, elttype
)
1232 # Anchor a type to the main module and the current receiver
1233 fun anchor
(mtype
: MType): MType
1235 if not mtype
.need_anchor
then return mtype
1236 return mtype
.anchor_to
(self.compiler
.mainmodule
, self.frame
.receiver
)
1239 fun resolve_for
(mtype
: MType, recv
: RuntimeVariable): MType
1241 if not mtype
.need_anchor
then return mtype
1242 return mtype
.resolve_for
(recv
.mcasttype
, self.frame
.receiver
, self.compiler
.mainmodule
, true)
1245 # Unsafely cast a value to a new type
1246 # ie the result share the same C variable but my have a different mcasttype
1247 # NOTE: if the adaptation is useless then `value` is returned as it.
1248 # ENSURE: `result.name == value.name`
1249 fun autoadapt
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable
1251 mtype
= self.anchor
(mtype
)
1252 var valmtype
= value
.mcasttype
1254 # Do nothing if useless autocast
1255 if valmtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1259 # Just as_not_null if the target is not nullable.
1261 # eg `nullable PreciseType` adapted to `Object` gives precisetype.
1262 if valmtype
isa MNullableType and valmtype
.mtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1263 mtype
= valmtype
.mtype
1266 var res
= new RuntimeVariable(value
.name
, value
.mtype
, mtype
)
1270 # Generate a super call from a method definition
1271 fun supercall
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1273 # Adapt the arguments of a method according to targetted `MMethodDef`
1274 fun adapt_signature
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1276 # Unbox all the arguments of a method when implemented `extern` or `intern`
1277 fun unbox_signature_extern
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1279 # Box or unbox a value to another type iff a C type conversion is needed
1280 # ENSURE: `result.mtype.ctype == mtype.ctype`
1281 fun autobox
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1283 # Box extern classes to be used in the generated code
1284 fun box_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1286 # Unbox extern classes to be used in extern code (legacy NI and FFI)
1287 fun unbox_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1289 # Generate a polymorphic subtype test
1290 fun type_test
(value
: RuntimeVariable, mtype
: MType, tag
: String): RuntimeVariable is abstract
1292 # Generate the code required to dynamically check if 2 objects share the same runtime type
1293 fun is_same_type_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1295 # Generate a Nit "is" for two runtime_variables
1296 fun equal_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1300 # Generate a static call on a method definition
1301 fun call
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1303 # Generate a polymorphic send for the method `m` and the arguments `args`
1304 fun send
(m
: MMethod, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1306 # Generate a monomorphic send for the method `m`, the type `t` and the arguments `args`
1307 fun monomorphic_send
(m
: MMethod, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1309 assert t
isa MClassType
1310 var propdef
= m
.lookup_first_definition
(self.compiler
.mainmodule
, t
)
1311 return self.call
(propdef
, t
, args
)
1314 # Generate a monomorphic super send from the method `m`, the type `t` and the arguments `args`
1315 fun monomorphic_super_send
(m
: MMethodDef, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1317 assert t
isa MClassType
1318 m
= m
.lookup_next_definition
(self.compiler
.mainmodule
, t
)
1319 return self.call
(m
, t
, args
)
1322 # Attributes handling
1324 # Generate a polymorphic attribute is_set test
1325 fun isset_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1327 # Generate a polymorphic attribute read
1328 fun read_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1330 # Generate a polymorphic attribute write
1331 fun write_attribute
(a
: MAttribute, recv
: RuntimeVariable, value
: RuntimeVariable) is abstract
1335 # Can value be null? (according to current knowledge)
1336 fun maybenull
(value
: RuntimeVariable): Bool
1338 return value
.mcasttype
isa MNullableType or value
.mcasttype
isa MNullType
1341 # Add a check and an abort for a null receiver if needed
1342 fun check_recv_notnull
(recv
: RuntimeVariable)
1344 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_null
.value
then return
1346 if maybenull
(recv
) then
1347 self.add
("if (unlikely({recv} == NULL)) \{")
1348 self.add_abort
("Receiver is null")
1355 private var names
= new HashSet[String]
1356 private var last
: Int = 0
1358 # Return a new name based on `s` and unique in the visitor
1359 fun get_name
(s
: String): String
1361 if not self.names
.has
(s
) then
1365 var i
= self.last
+ 1
1368 if not self.names
.has
(s2
) then
1377 # Return an unique and stable identifier associated with an escapemark
1378 fun escapemark_name
(e
: nullable EscapeMark): String
1381 if frame
.escapemark_names
.has_key
(e
) then return frame
.escapemark_names
[e
]
1383 if name
== null then name
= "label"
1384 name
= get_name
(name
)
1385 frame
.escapemark_names
[e
] = name
1389 # Insert a C label for associated with an escapemark
1390 fun add_escape_label
(e
: nullable EscapeMark)
1392 if e
== null then return
1393 if e
.escapes
.is_empty
then return
1394 add
("BREAK_{escapemark_name(e)}: (void)0;")
1397 # Return a "const char*" variable associated to the classname of the dynamic type of an object
1398 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
1399 fun class_name_string
(value
: RuntimeVariable): String is abstract
1401 # Variables handling
1403 protected var variables
= new HashMap[Variable, RuntimeVariable]
1405 # Return the local runtime_variable associated to a Nit local variable
1406 fun variable
(variable
: Variable): RuntimeVariable
1408 if self.variables
.has_key
(variable
) then
1409 return self.variables
[variable
]
1411 var name
= self.get_name
("var_{variable.name}")
1412 var mtype
= variable
.declared_type
.as(not null)
1413 mtype
= self.anchor
(mtype
)
1414 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1415 self.add_decl
("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
1416 self.variables
[variable
] = res
1421 # Return a new uninitialized local runtime_variable
1422 fun new_var
(mtype
: MType): RuntimeVariable
1424 mtype
= self.anchor
(mtype
)
1425 var name
= self.get_name
("var")
1426 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1427 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1431 # The difference with `new_var` is the C static type of the local variable
1432 fun new_var_extern
(mtype
: MType): RuntimeVariable
1434 mtype
= self.anchor
(mtype
)
1435 var name
= self.get_name
("var")
1436 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1437 self.add_decl
("{mtype.ctype_extern} {name} /* : {mtype} for extern */;")
1441 # Return a new uninitialized named runtime_variable
1442 fun new_named_var
(mtype
: MType, name
: String): RuntimeVariable
1444 mtype
= self.anchor
(mtype
)
1445 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1446 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1450 # Correctly assign a left and a right value
1451 # Boxing and unboxing is performed if required
1452 fun assign
(left
, right
: RuntimeVariable)
1454 right
= self.autobox
(right
, left
.mtype
)
1455 self.add
("{left} = {right};")
1458 # Generate instances
1460 # Generate a alloc-instance + init-attributes
1461 fun init_instance
(mtype
: MClassType): RuntimeVariable is abstract
1463 # Allocate and init attributes of an instance of a standard or extern class
1465 # Does not support universals and the pseudo-internal `NativeArray` class.
1466 fun init_instance_or_extern
(mtype
: MClassType): RuntimeVariable
1469 var ctype
= mtype
.ctype
1470 assert mtype
.mclass
.name
!= "NativeArray"
1471 if not mtype
.is_c_primitive
then
1472 recv
= init_instance
(mtype
)
1473 else if ctype
== "char*" then
1474 recv
= new_expr
("NULL/*special!*/", mtype
)
1476 recv
= new_expr
("({ctype})0/*special!*/", mtype
)
1481 # Set a GC finalizer on `recv`, only if `recv` isa Finalizable
1482 fun set_finalizer
(recv
: RuntimeVariable)
1484 var mtype
= recv
.mtype
1485 var finalizable_type
= compiler
.mainmodule
.finalizable_type
1486 if finalizable_type
!= null and not mtype
.need_anchor
and
1487 mtype
.is_subtype
(compiler
.mainmodule
, null, finalizable_type
) then
1488 add
"gc_register_finalizer({recv});"
1492 # The currently processed module
1494 # alias for `compiler.mainmodule`
1495 fun mmodule
: MModule do return compiler
.mainmodule
1497 # Generate an integer value
1498 fun int_instance
(value
: Int): RuntimeVariable
1500 var t
= mmodule
.int_type
1501 var res
= new RuntimeVariable("{value.to_s}l", t
, t
)
1505 # Generate a byte value
1506 fun byte_instance
(value
: Byte): RuntimeVariable
1508 var t
= mmodule
.byte_type
1509 var res
= new RuntimeVariable("((unsigned char){value.to_s})", t
, t
)
1513 # Generate an int8 value
1514 fun int8_instance
(value
: Int8): RuntimeVariable
1516 var t
= mmodule
.int8_type
1517 var res
= new RuntimeVariable("((int8_t){value.to_s})", t
, t
)
1521 # Generate an int16 value
1522 fun int16_instance
(value
: Int16): RuntimeVariable
1524 var t
= mmodule
.int16_type
1525 var res
= new RuntimeVariable("((int16_t){value.to_s})", t
, t
)
1529 # Generate a uint16 value
1530 fun uint16_instance
(value
: UInt16): RuntimeVariable
1532 var t
= mmodule
.uint16_type
1533 var res
= new RuntimeVariable("((uint16_t){value.to_s})", t
, t
)
1537 # Generate an int32 value
1538 fun int32_instance
(value
: Int32): RuntimeVariable
1540 var t
= mmodule
.int32_type
1541 var res
= new RuntimeVariable("((int32_t){value.to_s})", t
, t
)
1545 # Generate a uint32 value
1546 fun uint32_instance
(value
: UInt32): RuntimeVariable
1548 var t
= mmodule
.uint32_type
1549 var res
= new RuntimeVariable("((uint32_t){value.to_s})", t
, t
)
1553 # Generate a char value
1554 fun char_instance
(value
: Char): RuntimeVariable
1556 var t
= mmodule
.char_type
1558 if value
.code_point
< 128 then
1559 return new RuntimeVariable("'{value.to_s.escape_to_c}'", t
, t
)
1561 return new RuntimeVariable("{value.code_point}", t
, t
)
1565 # Generate a float value
1567 # FIXME pass a Float, not a string
1568 fun float_instance
(value
: String): RuntimeVariable
1570 var t
= mmodule
.float_type
1571 var res
= new RuntimeVariable("{value}", t
, t
)
1575 # Generate an integer value
1576 fun bool_instance
(value
: Bool): RuntimeVariable
1578 var s
= if value
then "1" else "0"
1579 var res
= new RuntimeVariable(s
, bool_type
, bool_type
)
1583 # Generate the `null` value
1584 fun null_instance
: RuntimeVariable
1586 var t
= compiler
.mainmodule
.model
.null_type
1587 var res
= new RuntimeVariable("((val*)NULL)", t
, t
)
1591 # Generate a string value
1592 fun string_instance
(string
: String): RuntimeVariable
1594 var mtype
= mmodule
.string_type
1595 var name
= self.get_name
("varonce")
1596 self.add_decl
("static {mtype.ctype} {name};")
1597 var res
= self.new_var
(mtype
)
1598 self.add
("if (likely({name}!=NULL)) \{")
1599 self.add
("{res} = {name};")
1600 self.add
("\} else \{")
1601 var native_mtype
= mmodule
.native_string_type
1602 var nat
= self.new_var
(native_mtype
)
1603 self.add
("{nat} = \"{string.escape_to_c}\
";")
1604 var bytelen
= self.int_instance
(string
.bytelen
)
1605 var unilen
= self.int_instance
(string
.length
)
1606 self.add
("{res} = {self.send(self.get_property("to_s_full", native_mtype), [nat, bytelen, unilen]).as(not null)};")
1607 self.add
("{name} = {res};")
1612 fun value_instance
(object
: Object): RuntimeVariable
1614 if object
isa Int then
1615 return int_instance
(object
)
1616 else if object
isa Bool then
1617 return bool_instance
(object
)
1618 else if object
isa String then
1619 return string_instance
(object
)
1625 # Generate an array value
1626 fun array_instance
(array
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1628 # Get an instance of a array for a vararg
1629 fun vararg_instance
(mpropdef
: MPropDef, recv
: RuntimeVariable, varargs
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1633 # Add a line in the main part of the generated C
1634 fun add
(s
: String) do self.writer
.lines
.add
(s
)
1637 # (used for local or global declaration)
1638 fun add_decl
(s
: String) do self.writer
.decl_lines
.add
(s
)
1640 # Request the presence of a global declaration
1641 fun require_declaration
(key
: String)
1643 var reqs
= self.writer
.file
.required_declarations
1644 if reqs
.has
(key
) then return
1646 var node
= current_node
1647 if node
!= null then compiler
.requirers_of_declarations
[key
] = node
1650 # Add a declaration in the local-header
1651 # The declaration is ensured to be present once
1652 fun declare_once
(s
: String)
1654 self.compiler
.provide_declaration
(s
, s
)
1655 self.require_declaration
(s
)
1658 # Look for a needed .h and .c file for a given module
1659 # This is used for the legacy FFI
1660 fun add_extern
(mmodule
: MModule)
1662 var file
= mmodule
.filepath
1663 file
= file
.strip_extension
(".nit")
1664 var tryfile
= file
+ ".nit.h"
1665 if tryfile
.file_exists
then
1666 self.declare_once
("#include \"{tryfile.basename}\
"")
1667 self.compiler
.files_to_copy
.add
(tryfile
)
1669 tryfile
= file
+ "_nit.h"
1670 if tryfile
.file_exists
then
1671 self.declare_once
("#include \"{tryfile.basename}\
"")
1672 self.compiler
.files_to_copy
.add
(tryfile
)
1675 if self.compiler
.seen_extern
.has
(file
) then return
1676 self.compiler
.seen_extern
.add
(file
)
1677 tryfile
= file
+ ".nit.c"
1678 if not tryfile
.file_exists
then
1679 tryfile
= file
+ "_nit.c"
1680 if not tryfile
.file_exists
then return
1682 var f
= new ExternCFile(tryfile
.basename
, "")
1683 self.compiler
.extern_bodies
.add
(f
)
1684 self.compiler
.files_to_copy
.add
(tryfile
)
1687 # Return a new local runtime_variable initialized with the C expression `cexpr`.
1688 fun new_expr
(cexpr
: String, mtype
: MType): RuntimeVariable
1690 var res
= new_var
(mtype
)
1691 self.add
("{res} = {cexpr};")
1695 # Generate generic abort
1696 # used by aborts, asserts, casts, etc.
1697 fun add_abort
(message
: String)
1699 self.add
("PRINT_ERROR(\"Runtime error
: %s\
", \"{message.escape_to_c}\
");")
1705 if self.current_node
!= null and self.current_node
.location
.file
!= null and
1706 self.current_node
.location
.file
.mmodule
!= null then
1707 var f
= "FILE_{self.current_node.location.file.mmodule.c_name}"
1708 self.require_declaration
(f
)
1709 self.add
("PRINT_ERROR(\" (%s
:%d
)\\n\
", {f}, {current_node.location.line_start});")
1711 self.add
("PRINT_ERROR(\"\\n\
");")
1713 self.add
("fatal_exit(1);")
1716 # Add a dynamic cast
1717 fun add_cast
(value
: RuntimeVariable, mtype
: MType, tag
: String)
1719 var res
= self.type_test
(value
, mtype
, tag
)
1720 self.add
("if (unlikely(!{res})) \{")
1721 var cn
= self.class_name_string
(value
)
1722 self.add
("PRINT_ERROR(\"Runtime error
: Cast failed
. Expected `%s`, got
`%s`\
", \"{mtype.to_s.escape_to_c}\
", {cn});")
1727 # Generate a return with the value `s`
1728 fun ret
(s
: RuntimeVariable)
1730 self.assign
(self.frame
.returnvar
.as(not null), s
)
1731 self.add
("goto {self.frame.returnlabel.as(not null)};")
1734 # Compile a statement (if any)
1735 fun stmt
(nexpr
: nullable AExpr)
1737 if nexpr
== null then return
1738 if nexpr
.is_broken
then
1739 # Untyped expression.
1740 # Might mean dead code or invalid code
1742 add_abort
("FATAL: bad statement executed.")
1746 var narray
= nexpr
.comprehension
1747 if narray
!= null then
1748 var recv
= frame
.comprehension
.as(not null)
1749 var val
= expr
(nexpr
, narray
.element_mtype
)
1750 compile_callsite
(narray
.push_callsite
.as(not null), [recv
, val
])
1754 var old
= self.current_node
1755 self.current_node
= nexpr
1757 self.current_node
= old
1760 # Compile an expression an return its result
1761 # `mtype` is the expected return type, pass null if no specific type is expected.
1762 fun expr
(nexpr
: AExpr, mtype
: nullable MType): RuntimeVariable
1764 var old
= self.current_node
1765 self.current_node
= nexpr
1768 if nexpr
.mtype
!= null then
1769 res
= nexpr
.expr
(self)
1773 # Untyped expression.
1774 # Might mean dead code or invalid code.
1776 add_abort
("FATAL: bad expression executed.")
1777 # and return a placebo result to please the C compiler
1778 if mtype
== null then mtype
= compiler
.mainmodule
.object_type
1779 res
= new_var
(mtype
)
1781 self.current_node
= old
1785 if mtype
!= null then
1786 mtype
= self.anchor
(mtype
)
1787 res
= self.autobox
(res
, mtype
)
1789 res
= autoadapt
(res
, nexpr
.mtype
.as(not null))
1790 var implicit_cast_to
= nexpr
.implicit_cast_to
1791 if implicit_cast_to
!= null and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_autocast
.value
then
1792 add_cast
(res
, implicit_cast_to
, "auto")
1793 res
= autoadapt
(res
, implicit_cast_to
)
1795 self.current_node
= old
1799 # Alias for `self.expr(nexpr, self.bool_type)`
1800 fun expr_bool
(nexpr
: AExpr): RuntimeVariable do return expr
(nexpr
, bool_type
)
1802 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1803 fun debug
(message
: String)
1805 var node
= self.current_node
1806 if node
== null then
1807 print
"?: {message}"
1811 self.add
("/* DEBUG: {message} */")
1815 # A C function associated to a Nit method
1816 # Because of customization, a given Nit method can be compiler more that once
1817 abstract class AbstractRuntimeFunction
1819 type COMPILER: AbstractCompiler
1820 type VISITOR: AbstractCompilerVisitor
1822 # The associated Nit method
1823 var mmethoddef
: MMethodDef
1825 # The mangled c name of the runtime_function
1826 # Subclasses should redefine `build_c_name` instead
1829 var res
= self.c_name_cache
1830 if res
!= null then return res
1831 res
= self.build_c_name
1832 self.c_name_cache
= res
1836 # Non cached version of `c_name`
1837 protected fun build_c_name
: String is abstract
1839 protected var c_name_cache
: nullable String = null is writable
1841 # Implements a call of the runtime_function
1842 # May inline the body or generate a C function call
1843 fun call
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1845 # Generate the code for the `AbstractRuntimeFunction`
1846 # Warning: compile more than once compilation makes CC unhappy
1847 fun compile_to_c
(compiler
: COMPILER) is abstract
1850 # A runtime variable hold a runtime value in C.
1851 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1853 # The tricky point is that a single C variable can be associated to more than one `RuntimeVariable` because the static knowledge of the type of an expression can vary in the C code.
1854 class RuntimeVariable
1855 # The name of the variable in the C code
1858 # The static type of the variable (as declard in C)
1861 # The current casted type of the variable (as known in Nit)
1862 var mcasttype
: MType is writable
1864 # If the variable exaclty a mcasttype?
1865 # false (usual value) means that the variable is a mcasttype or a subtype.
1866 var is_exact
: Bool = false is writable
1870 assert not mtype
.need_anchor
1871 assert not mcasttype
.need_anchor
1874 redef fun to_s
do return name
1879 if self.is_exact
then
1880 exact_str
= " exact"
1885 if self.mtype
== self.mcasttype
then
1886 type_str
= "{mtype}{exact_str}"
1888 type_str
= "{mtype}({mcasttype}{exact_str})"
1890 return "<{name}:{type_str}>"
1894 # The static context of a visited property in a `AbstractCompilerVisitor`
1897 type VISITOR: AbstractCompilerVisitor
1899 # The associated visitor
1900 var visitor
: VISITOR
1902 # The executed property.
1903 # A Method in case of a call, an attribute in case of a default initialization.
1904 var mpropdef
: MPropDef
1906 # The static type of the receiver
1907 var receiver
: MClassType
1909 # Arguments of the method (the first is the receiver)
1910 var arguments
: Array[RuntimeVariable]
1912 # The runtime_variable associated to the return (in a function)
1913 var returnvar
: nullable RuntimeVariable = null is writable
1915 # The label at the end of the property
1916 var returnlabel
: nullable String = null is writable
1918 # Labels associated to a each escapemarks.
1919 # Because of inlinings, escape-marks must be associated to their context (the frame)
1920 private var escapemark_names
= new HashMap[EscapeMark, String]
1922 # The array comprehension currently filled, if any
1923 private var comprehension
: nullable RuntimeVariable = null
1927 # Return the C type associated to a given Nit static type
1928 fun ctype
: String do return "val*"
1930 # C type outside of the compiler code and in boxes
1931 fun ctype_extern
: String do return "val*"
1933 # Short name of the `ctype` to use in unions
1934 fun ctypename
: String do return "val"
1936 # Is the associated C type a primitive one?
1938 # ENSURE `result == (ctype != "val*")`
1939 fun is_c_primitive
: Bool do return false
1942 redef class MClassType
1944 redef var ctype
is lazy
do
1945 if mclass
.name
== "Int" then
1947 else if mclass
.name
== "Bool" then
1949 else if mclass
.name
== "Char" then
1951 else if mclass
.name
== "Float" then
1953 else if mclass
.name
== "Int8" then
1955 else if mclass
.name
== "Byte" then
1956 return "unsigned char"
1957 else if mclass
.name
== "Int16" then
1959 else if mclass
.name
== "UInt16" then
1961 else if mclass
.name
== "Int32" then
1963 else if mclass
.name
== "UInt32" then
1965 else if mclass
.name
== "NativeString" then
1967 else if mclass
.name
== "NativeArray" then
1974 redef var is_c_primitive
is lazy
do return ctype
!= "val*"
1976 redef fun ctype_extern
: String
1978 if mclass
.kind
== extern_kind
then
1985 redef fun ctypename
: String
1987 if mclass
.name
== "Int" then
1989 else if mclass
.name
== "Bool" then
1991 else if mclass
.name
== "Char" then
1993 else if mclass
.name
== "Float" then
1995 else if mclass
.name
== "Int8" then
1997 else if mclass
.name
== "Byte" then
1999 else if mclass
.name
== "Int16" then
2001 else if mclass
.name
== "UInt16" then
2003 else if mclass
.name
== "Int32" then
2005 else if mclass
.name
== "UInt32" then
2007 else if mclass
.name
== "NativeString" then
2009 else if mclass
.name
== "NativeArray" then
2010 #return "{self.arguments.first.ctype}*"
2018 redef class MPropDef
2019 type VISITOR: AbstractCompilerVisitor
2022 redef class MMethodDef
2023 # Can the body be inlined?
2024 fun can_inline
(v
: VISITOR): Bool
2026 if is_abstract
then return true
2027 if constant_value
!= null then return true
2028 var modelbuilder
= v
.compiler
.modelbuilder
2029 var node
= modelbuilder
.mpropdef2node
(self)
2030 if node
isa APropdef then
2031 return node
.can_inline
2032 else if node
isa AClassdef then
2033 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
2035 else if node
== null then
2042 # Inline the body in another visitor
2043 fun compile_inside_to_c
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
2045 var modelbuilder
= v
.compiler
.modelbuilder
2046 var val
= constant_value
2047 var node
= modelbuilder
.mpropdef2node
(self)
2050 var cn
= v
.class_name_string
(arguments
.first
)
2051 v
.current_node
= node
2052 v
.add
("PRINT_ERROR(\"Runtime error
: Abstract method
`%s` called on
`%s`\
", \"{mproperty.name.escape_to_c}\
", {cn});")
2057 if node
isa APropdef then
2058 var oldnode
= v
.current_node
2059 v
.current_node
= node
2060 self.compile_parameter_check
(v
, arguments
)
2061 node
.compile_to_c
(v
, self, arguments
)
2062 v
.current_node
= oldnode
2063 else if node
isa AClassdef then
2064 var oldnode
= v
.current_node
2065 v
.current_node
= node
2066 self.compile_parameter_check
(v
, arguments
)
2067 node
.compile_to_c
(v
, self, arguments
)
2068 v
.current_node
= oldnode
2069 else if val
!= null then
2070 v
.ret
(v
.value_instance
(val
))
2077 # Generate type checks in the C code to check covariant parameters
2078 fun compile_parameter_check
(v
: VISITOR, arguments
: Array[RuntimeVariable])
2080 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_covariance
.value
then return
2082 var msignature
= self.msignature
.as(not null)
2084 for i
in [0..msignature
.arity
[ do
2085 var mp
= msignature
.mparameters
[i
]
2086 # skip test for vararg since the array is instantiated with the correct polymorphic type
2087 if mp
.is_vararg
then continue
2089 # skip if the cast is not required
2090 var origmtype
= self.mproperty
.intro
.msignature
.mparameters
[i
].mtype
2091 if not origmtype
.need_anchor
then continue
2093 # get the parameter type
2094 var mtype
= mp
.mtype
2097 # note that v decides if and how to implements the cast
2098 v
.add
("/* Covariant cast for argument {i} ({mp.name}) {arguments[i+1].inspect} isa {mtype} */")
2099 v
.add_cast
(arguments
[i
+1], mtype
, "covariance")
2106 redef class APropdef
2107 fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
2109 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at
{location.to_s}\\n\
");")
2110 debug
("Not yet implemented")
2113 fun can_inline
: Bool do return true
2116 redef class AMethPropdef
2117 redef fun compile_to_c
(v
, mpropdef
, arguments
)
2119 # Call the implicit super-init
2120 var auto_super_inits
= self.auto_super_inits
2121 if auto_super_inits
!= null then
2122 var args
= [arguments
.first
]
2123 for auto_super_init
in auto_super_inits
do
2124 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2126 for i
in [0..auto_super_init
.msignature
.arity
+1[ do
2127 args
.add
(arguments
[i
])
2129 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2130 v
.compile_callsite
(auto_super_init
, args
)
2133 if auto_super_call
then
2134 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
2137 # Try special compilation
2138 if mpropdef
.is_intern
then
2139 if compile_intern_to_c
(v
, mpropdef
, arguments
) then return
2141 if mpropdef
.is_extern
then
2142 if mpropdef
.mproperty
.is_init
then
2143 if compile_externinit_to_c
(v
, mpropdef
, arguments
) then return
2145 if compile_externmeth_to_c
(v
, mpropdef
, arguments
) then return
2149 # Compile block if any
2150 var n_block
= n_block
2151 if n_block
!= null then
2152 for i
in [0..mpropdef
.msignature
.arity
[ do
2153 var variable
= self.n_signature
.n_params
[i
].variable
.as(not null)
2154 v
.assign
(v
.variable
(variable
), arguments
[i
+1])
2161 var cn
= v
.class_name_string
(arguments
.first
)
2162 v
.add
("PRINT_ERROR(\"Runtime error
: uncompiled method
`%s` called on
`%s`. NOT YET IMPLEMENTED\
", \"{mpropdef.mproperty.name.escape_to_c}\
", {cn});")
2166 redef fun can_inline
2168 if self.auto_super_inits
!= null then return false
2169 var nblock
= self.n_block
2170 if nblock
== null then return true
2171 if (mpropdef
.mproperty
.name
== "==" or mpropdef
.mproperty
.name
== "!=") and mpropdef
.mclassdef
.mclass
.name
== "Object" then return true
2172 if nblock
isa ABlockExpr and nblock
.n_expr
.length
== 0 then return true
2176 fun compile_intern_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
2178 var pname
= mpropdef
.mproperty
.name
2179 var cname
= mpropdef
.mclassdef
.mclass
.name
2180 var ret
= mpropdef
.msignature
.return_mtype
2182 ret
= v
.resolve_for
(ret
, arguments
.first
)
2184 if pname
!= "==" and pname
!= "!=" then
2185 v
.adapt_signature
(mpropdef
, arguments
)
2186 v
.unbox_signature_extern
(mpropdef
, arguments
)
2188 if cname
== "Int" then
2189 if pname
== "output" then
2190 v
.add
("printf(\"%ld\\n\
", {arguments.first});")
2192 else if pname
== "object_id" then
2193 v
.ret
(arguments
.first
)
2195 else if pname
== "+" then
2196 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2198 else if pname
== "-" then
2199 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2201 else if pname
== "unary -" then
2202 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2204 else if pname
== "unary +" then
2207 else if pname
== "*" then
2208 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2210 else if pname
== "/" then
2211 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2213 else if pname
== "%" then
2214 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2216 else if pname
== "==" then
2217 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2219 else if pname
== "!=" then
2220 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2221 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2223 else if pname
== "<" then
2224 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2226 else if pname
== ">" then
2227 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2229 else if pname
== "<=" then
2230 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2232 else if pname
== ">=" then
2233 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2235 else if pname
== "to_i8" then
2236 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2238 else if pname
== "to_i16" then
2239 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2241 else if pname
== "to_u16" then
2242 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2244 else if pname
== "to_i32" then
2245 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2247 else if pname
== "to_u32" then
2248 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2250 else if pname
== "to_f" then
2251 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2253 else if pname
== "to_b" then
2254 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2256 else if pname
== "code_point" then
2257 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2259 else if pname
== "&" then
2260 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2262 else if pname
== "|" then
2263 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2265 else if pname
== ">>" then
2266 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2268 else if pname
== "<<" then
2269 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2272 else if cname
== "Char" then
2273 if pname
== "object_id" then
2274 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2276 else if pname
== "successor" then
2277 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2279 else if pname
== "predecessor" then
2280 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2282 else if pname
== "==" then
2283 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2285 else if pname
== "!=" then
2286 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2287 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2289 else if pname
== "<" then
2290 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2292 else if pname
== ">" then
2293 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2295 else if pname
== "<=" then
2296 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2298 else if pname
== ">=" then
2299 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2301 else if pname
== "to_i" then
2302 v
.ret
(v
.new_expr
("{arguments[0]}-'0'", ret
.as(not null)))
2304 else if pname
== "code_point" then
2305 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2308 else if cname
== "Byte" then
2309 if pname
== "output" then
2310 v
.add
("printf(\"%x\\n\
", {arguments.first});")
2312 else if pname
== "object_id" then
2313 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2315 else if pname
== "+" then
2316 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2318 else if pname
== "-" then
2319 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2321 else if pname
== "unary -" then
2322 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2324 else if pname
== "unary +" then
2327 else if pname
== "*" then
2328 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2330 else if pname
== "/" then
2331 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2333 else if pname
== "%" then
2334 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2336 else if pname
== "==" then
2337 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2339 else if pname
== "!=" then
2340 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2341 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2343 else if pname
== "<" then
2344 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2346 else if pname
== ">" then
2347 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2349 else if pname
== "<=" then
2350 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2352 else if pname
== ">=" then
2353 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2355 else if pname
== ">>" then
2356 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2358 else if pname
== "<<" then
2359 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2361 else if pname
== "&" then
2362 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2364 else if pname
== "to_i" then
2365 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2367 else if pname
== "to_f" then
2368 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2370 else if pname
== "to_i8" then
2371 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2373 else if pname
== "to_i16" then
2374 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2376 else if pname
== "to_u16" then
2377 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2379 else if pname
== "to_i32" then
2380 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2382 else if pname
== "to_u32" then
2383 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2385 else if pname
== "ascii" then
2386 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2389 else if cname
== "Bool" then
2390 if pname
== "output" then
2391 v
.add
("printf({arguments.first}?\"true\\n\
":\"false\\n\
");")
2393 else if pname
== "object_id" then
2394 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2396 else if pname
== "==" then
2397 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2399 else if pname
== "!=" then
2400 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2401 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2404 else if cname
== "Float" then
2405 if pname
== "output" then
2406 v
.add
("printf(\"%f\\n\
", {arguments.first});")
2408 else if pname
== "object_id" then
2409 v
.ret
(v
.new_expr
("(double){arguments.first}", ret
.as(not null)))
2411 else if pname
== "+" then
2412 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2414 else if pname
== "-" then
2415 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2417 else if pname
== "unary -" then
2418 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2420 else if pname
== "unary +" then
2423 else if pname
== "succ" then
2424 v
.ret
(v
.new_expr
("{arguments[0]}+1", ret
.as(not null)))
2426 else if pname
== "prec" then
2427 v
.ret
(v
.new_expr
("{arguments[0]}-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
.equal_test
(arguments
[0], arguments
[1]))
2438 else if pname
== "!=" then
2439 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2440 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2442 else if pname
== "<" then
2443 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2445 else if pname
== ">" then
2446 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2448 else if pname
== "<=" then
2449 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2451 else if pname
== ">=" then
2452 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2454 else if pname
== "to_i" then
2455 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2457 else if pname
== "to_b" then
2458 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2460 else if pname
== "to_i8" then
2461 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2463 else if pname
== "to_i16" then
2464 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2466 else if pname
== "to_u16" then
2467 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2469 else if pname
== "to_i32" then
2470 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2472 else if pname
== "to_u32" then
2473 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2476 else if cname
== "NativeString" then
2477 if pname
== "[]" then
2478 v
.ret
(v
.new_expr
("(unsigned char)((int){arguments[0]}[{arguments[1]}])", ret
.as(not null)))
2480 else if pname
== "[]=" then
2481 v
.add
("{arguments[0]}[{arguments[1]}]=(unsigned char){arguments[2]};")
2483 else if pname
== "copy_to" then
2484 v
.add
("memmove({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
2486 else if pname
== "atoi" then
2487 v
.ret
(v
.new_expr
("atoi({arguments[0]});", ret
.as(not null)))
2489 else if pname
== "fast_cstring" then
2490 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2492 else if pname
== "==" then
2493 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2495 else if pname
== "!=" then
2496 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2497 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2499 else if pname
== "new" then
2500 v
.ret
(v
.new_expr
("(char*)nit_alloc({arguments[1]})", ret
.as(not null)))
2502 else if pname
== "fetch_4_chars" then
2503 v
.ret
(v
.new_expr
("(long)*((uint32_t*)({arguments[0]} + {arguments[1]}))", ret
.as(not null)))
2505 else if pname
== "fetch_4_hchars" then
2506 v
.ret
(v
.new_expr
("(long)be32toh(*((uint32_t*)({arguments[0]} + {arguments[1]})))", ret
.as(not null)))
2509 else if cname
== "NativeArray" then
2510 return v
.native_array_def
(pname
, ret
, arguments
)
2511 else if cname
== "Int8" then
2512 if pname
== "output" then
2513 v
.add
("printf(\"%\
"PRIi8 \"\\n\
", {arguments.first});")
2515 else if pname
== "object_id" then
2516 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2518 else if pname
== "+" then
2519 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2521 else if pname
== "-" then
2522 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2524 else if pname
== "unary -" then
2525 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2527 else if pname
== "unary +" then
2530 else if pname
== "*" then
2531 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2533 else if pname
== "/" then
2534 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2536 else if pname
== "%" then
2537 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2539 else if pname
== "<<" then
2540 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2542 else if pname
== ">>" then
2543 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2545 else if pname
== "==" then
2546 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2548 else if pname
== "!=" then
2549 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2550 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2552 else if pname
== "<" then
2553 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2555 else if pname
== ">" then
2556 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2558 else if pname
== "<=" then
2559 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2561 else if pname
== ">=" then
2562 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2564 else if pname
== "to_i" then
2565 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2567 else if pname
== "to_b" then
2568 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2570 else if pname
== "to_i16" then
2571 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2573 else if pname
== "to_u16" then
2574 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2576 else if pname
== "to_i32" then
2577 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2579 else if pname
== "to_u32" then
2580 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2582 else if pname
== "to_f" then
2583 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2585 else if pname
== "&" then
2586 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2588 else if pname
== "|" then
2589 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2591 else if pname
== "^" then
2592 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2594 else if pname
== "unary ~" then
2595 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2598 else if cname
== "Int16" then
2599 if pname
== "output" then
2600 v
.add
("printf(\"%\
"PRIi16 \"\\n\
", {arguments.first});")
2602 else if pname
== "object_id" then
2603 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2605 else if pname
== "+" then
2606 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2608 else if pname
== "-" then
2609 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2611 else if pname
== "unary -" then
2612 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2614 else if pname
== "unary +" then
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
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2629 else if pname
== ">>" then
2630 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2632 else if pname
== "==" then
2633 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2635 else if pname
== "!=" then
2636 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2637 v
.ret
(v
.new_expr
("!{res}", 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
== "<=" then
2646 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2648 else if pname
== ">=" then
2649 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2651 else if pname
== "to_i" then
2652 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2654 else if pname
== "to_b" then
2655 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2657 else if pname
== "to_i8" then
2658 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2660 else if pname
== "to_u16" then
2661 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2663 else if pname
== "to_i32" then
2664 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2666 else if pname
== "to_u32" then
2667 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2669 else if pname
== "to_f" then
2670 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2672 else if pname
== "&" then
2673 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2675 else if pname
== "|" then
2676 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2678 else if pname
== "^" then
2679 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2681 else if pname
== "unary ~" then
2682 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2685 else if cname
== "UInt16" then
2686 if pname
== "output" then
2687 v
.add
("printf(\"%\
"PRIu16 \"\\n\
", {arguments.first});")
2689 else if pname
== "object_id" then
2690 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2692 else if pname
== "+" then
2693 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2695 else if pname
== "-" then
2696 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2698 else if pname
== "unary -" then
2699 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2701 else if pname
== "unary +" then
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
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2716 else if pname
== ">>" then
2717 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2719 else if pname
== "==" then
2720 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2722 else if pname
== "!=" then
2723 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2724 v
.ret
(v
.new_expr
("!{res}", 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
== "<=" then
2733 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2735 else if pname
== ">=" then
2736 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2738 else if pname
== "to_i" then
2739 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2741 else if pname
== "to_b" then
2742 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2744 else if pname
== "to_i8" then
2745 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2747 else if pname
== "to_i16" then
2748 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2750 else if pname
== "to_i32" then
2751 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2753 else if pname
== "to_u32" then
2754 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2756 else if pname
== "to_f" then
2757 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2759 else if pname
== "&" then
2760 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2762 else if pname
== "|" then
2763 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2765 else if pname
== "^" then
2766 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2768 else if pname
== "unary ~" then
2769 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2772 else if cname
== "Int32" then
2773 if pname
== "output" then
2774 v
.add
("printf(\"%\
"PRIi32 \"\\n\
", {arguments.first});")
2776 else if pname
== "object_id" then
2777 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2779 else if pname
== "+" then
2780 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2782 else if pname
== "-" then
2783 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2785 else if pname
== "unary -" then
2786 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2788 else if pname
== "unary +" then
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
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2803 else if pname
== ">>" then
2804 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2806 else if pname
== "==" then
2807 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2809 else if pname
== "!=" then
2810 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2811 v
.ret
(v
.new_expr
("!{res}", 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
== "<=" then
2820 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2822 else if pname
== ">=" then
2823 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2825 else if pname
== "to_i" then
2826 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2828 else if pname
== "to_b" then
2829 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2831 else if pname
== "to_i8" then
2832 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2834 else if pname
== "to_i16" then
2835 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2837 else if pname
== "to_u16" then
2838 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2840 else if pname
== "to_u32" then
2841 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2843 else if pname
== "to_f" then
2844 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2846 else if pname
== "&" then
2847 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2849 else if pname
== "|" then
2850 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2852 else if pname
== "^" then
2853 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2855 else if pname
== "unary ~" then
2856 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2859 else if cname
== "UInt32" then
2860 if pname
== "output" then
2861 v
.add
("printf(\"%\
"PRIu32 \"\\n\
", {arguments.first});")
2863 else if pname
== "object_id" then
2864 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2866 else if pname
== "+" then
2867 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2869 else if pname
== "-" then
2870 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2872 else if pname
== "unary -" then
2873 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2875 else if pname
== "unary +" then
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
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2890 else if pname
== ">>" then
2891 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2893 else if pname
== "==" then
2894 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2896 else if pname
== "!=" then
2897 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2898 v
.ret
(v
.new_expr
("!{res}", 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
== "<=" then
2907 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2909 else if pname
== ">=" then
2910 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2912 else if pname
== "to_i" then
2913 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2915 else if pname
== "to_b" then
2916 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2918 else if pname
== "to_i8" then
2919 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2921 else if pname
== "to_i16" then
2922 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2924 else if pname
== "to_u16" then
2925 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2927 else if pname
== "to_i32" then
2928 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2930 else if pname
== "to_f" then
2931 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2933 else if pname
== "&" then
2934 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2936 else if pname
== "|" then
2937 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2939 else if pname
== "^" then
2940 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2942 else if pname
== "unary ~" then
2943 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2947 if pname
== "exit" then
2948 v
.add
("exit({arguments[1]});")
2950 else if pname
== "sys" then
2951 v
.ret
(v
.new_expr
("glob_sys", ret
.as(not null)))
2953 else if pname
== "calloc_string" then
2954 v
.ret
(v
.new_expr
("(char*)nit_alloc({arguments[1]})", ret
.as(not null)))
2956 else if pname
== "calloc_array" then
2957 v
.calloc_array
(ret
.as(not null), arguments
)
2959 else if pname
== "object_id" then
2960 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2962 else if pname
== "is_same_type" then
2963 v
.ret
(v
.is_same_type_test
(arguments
[0], arguments
[1]))
2965 else if pname
== "is_same_instance" then
2966 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2968 else if pname
== "output_class_name" then
2969 var nat
= v
.class_name_string
(arguments
.first
)
2970 v
.add
("printf(\"%s\\n\
", {nat});")
2972 else if pname
== "native_class_name" then
2973 var nat
= v
.class_name_string
(arguments
.first
)
2974 v
.ret
(v
.new_expr
("(char*){nat}", ret
.as(not null)))
2976 else if pname
== "force_garbage_collection" then
2977 v
.add
("nit_gcollect();")
2979 else if pname
== "native_argc" then
2980 v
.ret
(v
.new_expr
("glob_argc", ret
.as(not null)))
2982 else if pname
== "native_argv" then
2983 v
.ret
(v
.new_expr
("glob_argv[{arguments[1]}]", ret
.as(not null)))
2989 # Compile an extern method
2990 # Return `true` if the compilation was successful, `false` if a fall-back is needed
2991 fun compile_externmeth_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
2994 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
2995 if at
!= null and at
.n_args
.length
== 1 then
2996 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
2997 if externname
== null then return false
3001 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3002 var res
: nullable RuntimeVariable = null
3003 var ret
= mpropdef
.msignature
.return_mtype
3005 ret
= v
.resolve_for
(ret
, arguments
.first
)
3006 res
= v
.new_var_extern
(ret
)
3008 v
.adapt_signature
(mpropdef
, arguments
)
3009 v
.unbox_signature_extern
(mpropdef
, arguments
)
3012 v
.add
("{externname}({arguments.join(", ")});")
3014 v
.add
("{res} = {externname}({arguments.join(", ")});")
3015 res
= v
.box_extern
(res
, ret
.as(not null))
3021 # Compile an extern factory
3022 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3023 fun compile_externinit_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3026 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3028 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3029 if externname
== null then return false
3033 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3034 v
.adapt_signature
(mpropdef
, arguments
)
3035 v
.unbox_signature_extern
(mpropdef
, arguments
)
3036 var ret
= arguments
.first
.mtype
3037 var res
= v
.new_var_extern
(ret
)
3041 v
.add
("{res} = {externname}({arguments.join(", ")});")
3042 res
= v
.box_extern
(res
, ret
)
3048 redef class AAttrPropdef
3049 redef fun can_inline
: Bool do return not is_lazy
3051 redef fun compile_to_c
(v
, mpropdef
, arguments
)
3053 if mpropdef
== mreadpropdef
then
3054 assert arguments
.length
== 1
3055 var recv
= arguments
.first
3059 var ret
= self.mtype
3060 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3061 var guard
= self.mlazypropdef
.mproperty
3063 set
= v
.isset_attribute
(self.mpropdef
.mproperty
, recv
)
3065 set
= v
.read_attribute
(guard
, recv
)
3067 v
.add
("if(likely({set})) \{")
3068 res
= v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3071 var value
= evaluate_expr
(v
, recv
)
3073 v
.assign
(res
, value
)
3075 var true_v
= v
.bool_instance
(true)
3076 v
.write_attribute
(guard
, arguments
.first
, true_v
)
3080 res
= v
.read_attribute
(self.mpropdef
.mproperty
, arguments
.first
)
3082 v
.assign
(v
.frame
.returnvar
.as(not null), res
)
3083 else if mpropdef
== mwritepropdef
then
3084 assert arguments
.length
== 2
3085 var recv
= arguments
.first
3086 var arg
= arguments
[1]
3087 if is_optional
and v
.maybenull
(arg
) then
3088 var value
= v
.new_var
(self.mpropdef
.static_mtype
.as(not null))
3089 v
.add
("if ({arg} == NULL) \{")
3090 v
.assign
(value
, evaluate_expr
(v
, recv
))
3092 v
.assign
(value
, arg
)
3096 v
.write_attribute
(self.mpropdef
.mproperty
, arguments
.first
, arg
)
3098 var ret
= self.mtype
3099 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3101 v
.write_attribute
(self.mlazypropdef
.mproperty
, arguments
.first
, v
.bool_instance
(true))
3109 fun init_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3111 if has_value
and not is_lazy
and not n_expr
isa ANullExpr then evaluate_expr
(v
, recv
)
3114 # Evaluate, store and return the default value of the attribute
3115 private fun evaluate_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable): RuntimeVariable
3117 var oldnode
= v
.current_node
3118 v
.current_node
= self
3119 var old_frame
= v
.frame
3120 var frame
= new StaticFrame(v
, self.mreadpropdef
.as(not null), recv
.mcasttype
.undecorate
.as(MClassType), [recv
])
3124 var mtype
= self.mtype
3125 assert mtype
!= null
3127 var nexpr
= self.n_expr
3128 var nblock
= self.n_block
3129 if nexpr
!= null then
3130 value
= v
.expr
(nexpr
, mtype
)
3131 else if nblock
!= null then
3132 value
= v
.new_var
(mtype
)
3133 frame
.returnvar
= value
3134 frame
.returnlabel
= v
.get_name
("RET_LABEL")
3137 v
.add
("{frame.returnlabel.as(not null)}:(void)0;")
3143 v
.write_attribute
(self.mpropdef
.mproperty
, recv
, value
)
3146 v
.current_node
= oldnode
3151 fun check_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3153 var nexpr
= self.n_expr
3154 if nexpr
!= null then return
3156 var oldnode
= v
.current_node
3157 v
.current_node
= self
3158 var old_frame
= v
.frame
3159 var frame
= new StaticFrame(v
, self.mpropdef
.as(not null), recv
.mtype
.as(MClassType), [recv
])
3161 # Force read to check the initialization
3162 v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3164 v
.current_node
= oldnode
3168 redef class AClassdef
3169 private fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
3171 if mpropdef
.mproperty
.is_root_init
then
3172 assert arguments
.length
== 1
3173 if not mpropdef
.is_intro
then
3174 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
3177 else if mclassdef
.auto_init
== mpropdef
then
3178 var recv
= arguments
.first
3179 var initializers
= mpropdef
.initializers
3181 if not initializers
.is_empty
then
3184 for p
in initializers
do
3185 if p
isa MMethod then
3187 for x
in p
.intro
.msignature
.mparameters
do
3188 args
.add arguments
[i
]
3192 if p
.intro
.is_calling_init
then no_init
= true
3193 else if p
isa MAttribute then
3194 v
.write_attribute
(p
, recv
, arguments
[i
])
3198 assert i
== arguments
.length
3201 if not no_init
then v
.send
(mclass
.the_root_init_mmethod
.as(not null), [recv
])
3210 # Try to compile self as an expression
3211 # Do not call this method directly, use `v.expr` instead
3212 private fun expr
(v
: AbstractCompilerVisitor): nullable RuntimeVariable
3214 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\
");")
3215 var mtype
= self.mtype
3216 if mtype
== null then
3219 var res
= v
.new_var
(mtype
)
3220 v
.add
("/* {res} = NOT YET {class_name} */")
3225 # Try to compile self as a statement
3226 # Do not call this method directly, use `v.stmt` instead
3227 private fun stmt
(v
: AbstractCompilerVisitor)
3233 redef class ABlockExpr
3236 for e
in self.n_expr
do v
.stmt
(e
)
3240 var last
= self.n_expr
.last
3241 for e
in self.n_expr
do
3242 if e
== last
then break
3245 return v
.expr
(last
, null)
3249 redef class AVardeclExpr
3252 var variable
= self.variable
.as(not null)
3253 var ne
= self.n_expr
3255 var i
= v
.expr
(ne
, variable
.declared_type
)
3256 v
.assign
(v
.variable
(variable
), i
)
3261 redef class AVarExpr
3264 var res
= v
.variable
(self.variable
.as(not null))
3265 var mtype
= self.mtype
.as(not null)
3266 return v
.autoadapt
(res
, mtype
)
3270 redef class AVarAssignExpr
3273 var variable
= self.variable
.as(not null)
3274 var i
= v
.expr
(self.n_value
, variable
.declared_type
)
3275 v
.assign
(v
.variable
(variable
), i
)
3280 redef class AVarReassignExpr
3283 var variable
= self.variable
.as(not null)
3284 var vari
= v
.variable
(variable
)
3285 var value
= v
.expr
(self.n_value
, variable
.declared_type
)
3286 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [vari
, value
])
3288 v
.assign
(v
.variable
(variable
), res
)
3292 redef class ASelfExpr
3293 redef fun expr
(v
) do return v
.frame
.arguments
.first
3296 redef class AImplicitSelfExpr
3297 redef fun expr
(v
) do
3298 if not is_sys
then return super
3299 return v
.new_expr
("glob_sys", mtype
.as(not null))
3303 redef class AEscapeExpr
3304 redef fun stmt
(v
) do v
.add
("goto BREAK_{v.escapemark_name(self.escapemark)};")
3307 redef class AReturnExpr
3310 var nexpr
= self.n_expr
3311 if nexpr
!= null then
3312 var returnvar
= v
.frame
.returnvar
.as(not null)
3313 var i
= v
.expr
(nexpr
, returnvar
.mtype
)
3314 v
.assign
(returnvar
, i
)
3316 v
.add
("goto {v.frame.returnlabel.as(not null)};")
3320 redef class AAbortExpr
3321 redef fun stmt
(v
) do v
.add_abort
("Aborted")
3327 var cond
= v
.expr_bool
(self.n_expr
)
3328 v
.add
("if ({cond})\{")
3337 var res
= v
.new_var
(self.mtype
.as(not null))
3338 var cond
= v
.expr_bool
(self.n_expr
)
3339 v
.add
("if ({cond})\{")
3340 v
.assign
(res
, v
.expr
(self.n_then
.as(not null), null))
3342 v
.assign
(res
, v
.expr
(self.n_else
.as(not null), null))
3348 redef class AIfexprExpr
3351 var res
= v
.new_var
(self.mtype
.as(not null))
3352 var cond
= v
.expr_bool
(self.n_expr
)
3353 v
.add
("if ({cond})\{")
3354 v
.assign
(res
, v
.expr
(self.n_then
, null))
3356 v
.assign
(res
, v
.expr
(self.n_else
, null))
3365 v
.stmt
(self.n_block
)
3366 v
.add_escape_label
(break_mark
)
3370 redef class AWhileExpr
3374 var cond
= v
.expr_bool
(self.n_expr
)
3375 v
.add
("if (!{cond}) break;")
3376 v
.stmt
(self.n_block
)
3377 v
.add_escape_label
(continue_mark
)
3379 v
.add_escape_label
(break_mark
)
3383 redef class ALoopExpr
3387 v
.stmt
(self.n_block
)
3388 v
.add_escape_label
(continue_mark
)
3390 v
.add_escape_label
(break_mark
)
3394 redef class AForExpr
3397 for g
in n_groups
do
3398 var cl
= v
.expr
(g
.n_expr
, null)
3399 var it_meth
= g
.method_iterator
3400 assert it_meth
!= null
3401 var it
= v
.compile_callsite
(it_meth
, [cl
])
3406 for g
in n_groups
do
3408 var isok_meth
= g
.method_is_ok
3409 assert isok_meth
!= null
3410 var ok
= v
.compile_callsite
(isok_meth
, [it
])
3412 v
.add
("if(!{ok}) break;")
3413 if g
.variables
.length
== 1 then
3414 var item_meth
= g
.method_item
3415 assert item_meth
!= null
3416 var i
= v
.compile_callsite
(item_meth
, [it
])
3418 v
.assign
(v
.variable
(g
.variables
.first
), i
)
3419 else if g
.variables
.length
== 2 then
3420 var key_meth
= g
.method_key
3421 assert key_meth
!= null
3422 var i
= v
.compile_callsite
(key_meth
, [it
])
3424 v
.assign
(v
.variable
(g
.variables
[0]), i
)
3425 var item_meth
= g
.method_item
3426 assert item_meth
!= null
3427 i
= v
.compile_callsite
(item_meth
, [it
])
3429 v
.assign
(v
.variable
(g
.variables
[1]), i
)
3434 v
.stmt
(self.n_block
)
3435 v
.add_escape_label
(continue_mark
)
3436 for g
in n_groups
do
3437 var next_meth
= g
.method_next
3438 assert next_meth
!= null
3439 v
.compile_callsite
(next_meth
, [g
.it
])
3442 v
.add_escape_label
(break_mark
)
3444 for g
in n_groups
do
3445 var method_finish
= g
.method_finish
3446 if method_finish
!= null then
3447 # TODO: Find a way to call this also in long escape (e.g. return)
3448 v
.compile_callsite
(method_finish
, [g
.it
])
3454 redef class AForGroup
3455 # C variable representing the iterator
3456 private var it
: RuntimeVariable is noinit
3459 redef class AAssertExpr
3462 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return
3464 var cond
= v
.expr_bool
(self.n_expr
)
3465 v
.add
("if (unlikely(!{cond})) \{")
3469 v
.add_abort
("Assert '{nid.text}' failed")
3471 v
.add_abort
("Assert failed")
3480 var res
= v
.new_var
(self.mtype
.as(not null))
3481 var i1
= v
.expr_bool
(self.n_expr
)
3482 v
.add
("if ({i1}) \{")
3485 var i2
= v
.expr_bool
(self.n_expr2
)
3486 v
.add
("{res} = {i2};")
3492 redef class AImpliesExpr
3495 var res
= v
.new_var
(self.mtype
.as(not null))
3496 var i1
= v
.expr_bool
(self.n_expr
)
3497 v
.add
("if (!{i1}) \{")
3500 var i2
= v
.expr_bool
(self.n_expr2
)
3501 v
.add
("{res} = {i2};")
3507 redef class AAndExpr
3510 var res
= v
.new_var
(self.mtype
.as(not null))
3511 var i1
= v
.expr_bool
(self.n_expr
)
3512 v
.add
("if (!{i1}) \{")
3515 var i2
= v
.expr_bool
(self.n_expr2
)
3516 v
.add
("{res} = {i2};")
3522 redef class ANotExpr
3525 var cond
= v
.expr_bool
(self.n_expr
)
3526 return v
.new_expr
("!{cond}", self.mtype
.as(not null))
3530 redef class AOrElseExpr
3533 var res
= v
.new_var
(self.mtype
.as(not null))
3534 var i1
= v
.expr
(self.n_expr
, null)
3536 if not v
.maybenull
(i1
) then return i1
3538 v
.add
("if ({i1}!=NULL) \{")
3541 var i2
= v
.expr
(self.n_expr2
, null)
3548 redef class AIntegerExpr
3549 redef fun expr
(v
) do
3550 if value
isa Int then return v
.int_instance
(value
.as(Int))
3551 if value
isa Byte then return v
.byte_instance
(value
.as(Byte))
3552 if value
isa Int8 then return v
.int8_instance
(value
.as(Int8))
3553 if value
isa Int16 then return v
.int16_instance
(value
.as(Int16))
3554 if value
isa UInt16 then return v
.uint16_instance
(value
.as(UInt16))
3555 if value
isa Int32 then return v
.int32_instance
(value
.as(Int32))
3556 if value
isa UInt32 then return v
.uint32_instance
(value
.as(UInt32))
3557 # Should never happen
3562 redef class AFloatExpr
3563 redef fun expr
(v
) do return v
.float_instance
("{self.n_float.text}") # FIXME use value, not n_float
3566 redef class ACharExpr
3567 redef fun expr
(v
) do
3568 if is_ascii
then return v
.byte_instance
(value
.as(not null).ascii
)
3569 if is_code_point
then return v
.int_instance
(value
.as(not null).code_point
)
3570 return v
.char_instance
(self.value
.as(not null))
3574 redef class AArrayExpr
3577 var mtype
= self.element_mtype
.as(not null)
3578 var array
= new Array[RuntimeVariable]
3579 var res
= v
.array_instance
(array
, mtype
)
3581 var old_comprehension
= v
.frame
.comprehension
3582 v
.frame
.comprehension
= res
3583 for nexpr
in self.n_exprs
do
3586 v
.frame
.comprehension
= old_comprehension
3592 redef class AStringFormExpr
3593 redef fun expr
(v
) do return v
.string_instance
(self.value
.as(not null))
3596 redef class ASuperstringExpr
3599 var type_string
= mtype
.as(not null)
3601 # Collect elements of the superstring
3602 var array
= new Array[AExpr]
3603 for ne
in self.n_exprs
do
3604 # Drop literal empty string.
3605 # They appears in things like "{a}" that is ["", a, ""]
3606 if ne
isa AStringFormExpr and ne
.value
== "" then continue # skip empty sub-strings
3610 # Store the allocated native array in a static variable
3612 var varonce
= v
.get_name
("varonce")
3613 v
.add
("if (unlikely({varonce}==NULL)) \{")
3615 # The native array that will contains the elements to_s-ized.
3616 # For fast concatenation.
3617 var a
= v
.native_array_instance
(type_string
, v
.int_instance
(array
.length
))
3619 v
.add_decl
("static {a.mtype.ctype} {varonce};")
3621 # Pre-fill the array with the literal string parts.
3622 # So they do not need to be filled again when reused
3623 for i
in [0..array
.length
[ do
3625 if not ne
isa AStringFormExpr then continue
3626 var e
= v
.expr
(ne
, null)
3627 v
.native_array_set
(a
, i
, e
)
3631 # Take the native-array from the store.
3632 # The point is to prevent that some recursive execution use (and corrupt) the same native array
3633 # WARNING: not thread safe! (FIXME?)
3634 v
.add
("{a} = {varonce};")
3635 v
.add
("{varonce} = NULL;")
3638 # Stringify the elements and put them in the native array
3639 var to_s_method
= v
.get_property
("to_s", v
.object_type
)
3640 for i
in [0..array
.length
[ do
3642 if ne
isa AStringFormExpr then continue
3643 var e
= v
.expr
(ne
, null)
3644 # Skip the `to_s` if the element is already a String
3645 if not e
.mcasttype
.is_subtype
(v
.compiler
.mainmodule
, null, type_string
) then
3646 e
= v
.send
(to_s_method
, [e
]).as(not null)
3648 v
.native_array_set
(a
, i
, e
)
3651 # Fast join the native string to get the result
3652 var res
= v
.send
(v
.get_property
("native_to_s", a
.mtype
), [a
])
3654 # We finish to work with the native array,
3655 # so store it so that it can be reused
3656 v
.add
("{varonce} = {a};")
3661 redef class ACrangeExpr
3664 var i1
= v
.expr
(self.n_expr
, null)
3665 var i2
= v
.expr
(self.n_expr2
, null)
3666 var mtype
= self.mtype
.as(MClassType)
3667 var res
= v
.init_instance
(mtype
)
3668 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3673 redef class AOrangeExpr
3676 var i1
= v
.expr
(self.n_expr
, null)
3677 var i2
= v
.expr
(self.n_expr2
, null)
3678 var mtype
= self.mtype
.as(MClassType)
3679 var res
= v
.init_instance
(mtype
)
3680 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3685 redef class ATrueExpr
3686 redef fun expr
(v
) do return v
.bool_instance
(true)
3689 redef class AFalseExpr
3690 redef fun expr
(v
) do return v
.bool_instance
(false)
3693 redef class ANullExpr
3694 redef fun expr
(v
) do return v
.null_instance
3697 redef class AIsaExpr
3700 var i
= v
.expr
(self.n_expr
, null)
3701 var cast_type
= self.cast_type
3702 if cast_type
== null then return null # no-no on broken node
3703 return v
.type_test
(i
, cast_type
, "isa")
3707 redef class AAsCastExpr
3710 var i
= v
.expr
(self.n_expr
, null)
3711 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3713 v
.add_cast
(i
, self.mtype
.as(not null), "as")
3718 redef class AAsNotnullExpr
3721 var i
= v
.expr
(self.n_expr
, null)
3722 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3724 if not v
.maybenull
(i
) then return i
3726 v
.add
("if (unlikely({i} == NULL)) \{")
3727 v
.add_abort
("Cast failed")
3733 redef class AParExpr
3734 redef fun expr
(v
) do return v
.expr
(self.n_expr
, null)
3737 redef class AOnceExpr
3740 var mtype
= self.mtype
.as(not null)
3741 var name
= v
.get_name
("varonce")
3742 var guard
= v
.get_name
(name
+ "_guard")
3743 v
.add_decl
("static {mtype.ctype} {name};")
3744 v
.add_decl
("static int {guard};")
3745 var res
= v
.new_var
(mtype
)
3746 v
.add
("if (likely({guard})) \{")
3747 v
.add
("{res} = {name};")
3749 var i
= v
.expr
(self.n_expr
, mtype
)
3750 v
.add
("{res} = {i};")
3751 v
.add
("{name} = {res};")
3752 v
.add
("{guard} = 1;")
3758 redef class ASendExpr
3761 var recv
= v
.expr
(self.n_expr
, null)
3762 var callsite
= self.callsite
.as(not null)
3763 if callsite
.is_broken
then return null
3764 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3765 return v
.compile_callsite
(callsite
, args
)
3769 redef class ASendReassignFormExpr
3772 var recv
= v
.expr
(self.n_expr
, null)
3773 var callsite
= self.callsite
.as(not null)
3774 if callsite
.is_broken
then return
3775 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3777 var value
= v
.expr
(self.n_value
, null)
3779 var left
= v
.compile_callsite
(callsite
, args
)
3782 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [left
, value
])
3786 v
.compile_callsite
(self.write_callsite
.as(not null), args
)
3790 redef class ASuperExpr
3793 var frame
= v
.frame
.as(not null)
3794 var recv
= frame
.arguments
.first
3796 var callsite
= self.callsite
3797 if callsite
!= null then
3798 if callsite
.is_broken
then return null
3801 if self.n_args
.n_exprs
.is_empty
then
3802 # Add automatic arguments for the super init call
3804 for i
in [0..callsite
.msignature
.arity
[ do
3805 args
.add
(frame
.arguments
[i
+1])
3808 args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3812 var res
= v
.compile_callsite
(callsite
, args
)
3816 var mpropdef
= self.mpropdef
.as(not null)
3819 if self.n_args
.n_exprs
.is_empty
then
3820 args
= frame
.arguments
3822 args
= v
.varargize
(mpropdef
, signaturemap
, recv
, self.n_args
.n_exprs
)
3825 # Standard call-next-method
3826 return v
.supercall
(mpropdef
, recv
.mtype
.as(MClassType), args
)
3830 redef class ANewExpr
3833 var mtype
= self.recvtype
3834 assert mtype
!= null
3836 if mtype
.mclass
.name
== "NativeArray" then
3837 assert self.n_args
.n_exprs
.length
== 1
3838 var l
= v
.expr
(self.n_args
.n_exprs
.first
, null)
3839 assert mtype
isa MGenericType
3840 var elttype
= mtype
.arguments
.first
3841 return v
.native_array_instance
(elttype
, l
)
3844 var recv
= v
.init_instance_or_extern
(mtype
)
3846 var callsite
= self.callsite
3847 if callsite
== null then return recv
3848 if callsite
.is_broken
then return null
3850 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3851 var res2
= v
.compile_callsite
(callsite
, args
)
3852 if res2
!= null then
3853 #self.debug("got {res2} from {mproperty}. drop {recv}")
3860 redef class AAttrExpr
3863 var recv
= v
.expr
(self.n_expr
, null)
3864 var mproperty
= self.mproperty
.as(not null)
3865 return v
.read_attribute
(mproperty
, recv
)
3869 redef class AAttrAssignExpr
3872 var recv
= v
.expr
(self.n_expr
, null)
3873 var i
= v
.expr
(self.n_value
, null)
3874 var mproperty
= self.mproperty
.as(not null)
3875 v
.write_attribute
(mproperty
, recv
, i
)
3880 redef class AAttrReassignExpr
3883 var recv
= v
.expr
(self.n_expr
, null)
3884 var value
= v
.expr
(self.n_value
, null)
3885 var mproperty
= self.mproperty
.as(not null)
3886 var attr
= v
.read_attribute
(mproperty
, recv
)
3887 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [attr
, value
])
3889 v
.write_attribute
(mproperty
, recv
, res
)
3893 redef class AIssetAttrExpr
3896 var recv
= v
.expr
(self.n_expr
, null)
3897 var mproperty
= self.mproperty
.as(not null)
3898 return v
.isset_attribute
(mproperty
, recv
)
3902 redef class AVarargExpr
3905 return v
.expr
(self.n_expr
, null)
3909 redef class ANamedargExpr
3912 return v
.expr
(self.n_expr
, null)
3916 redef class ADebugTypeExpr
3925 redef class Array[E
]
3926 # Return a new `Array` with the elements only contened in self and not in `o`
3927 fun -(o
: Array[E
]): Array[E
] do
3928 var res
= new Array[E
]
3929 for e
in self do if not o
.has
(e
) then res
.add
(e
)
3935 # All `MProperty` associated to all `MClassDef` of `mclass`
3936 fun properties
(mclass
: MClass): Set[MProperty] do
3937 if not self.properties_cache
.has_key
(mclass
) then
3938 var properties
= new HashSet[MProperty]
3939 var parents
= new Array[MClass]
3940 if self.flatten_mclass_hierarchy
.has
(mclass
) then
3941 parents
.add_all
(mclass
.in_hierarchy
(self).direct_greaters
)
3943 for parent
in parents
do
3944 properties
.add_all
(self.properties
(parent
))
3946 for mclassdef
in mclass
.mclassdefs
do
3947 if not self.in_importation
<= mclassdef
.mmodule
then continue
3948 for mprop
in mclassdef
.intro_mproperties
do
3949 properties
.add
(mprop
)
3952 self.properties_cache
[mclass
] = properties
3954 return properties_cache
[mclass
]
3956 private var properties_cache
: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
3958 # Write FFI and nitni results to file
3959 fun finalize_ffi
(c
: AbstractCompiler) do end
3961 # Give requided addinional system libraries (as given to LD_LIBS)
3962 # Note: can return null instead of an empty set
3963 fun collect_linker_libs
: nullable Array[String] do return null
3966 # Create a tool context to handle options and paths
3967 var toolcontext
= new ToolContext
3969 toolcontext
.tooldescription
= "Usage: nitc [OPTION]... file.nit...\nCompiles Nit programs."
3971 # We do not add other options, so process them now!
3972 toolcontext
.process_options
(args
)
3974 # We need a model to collect stufs
3975 var model
= new Model
3976 # An a model builder to parse files
3977 var modelbuilder
= new ModelBuilder(model
, toolcontext
)
3979 var arguments
= toolcontext
.option_context
.rest
3980 if arguments
.length
> 1 and toolcontext
.opt_output
.value
!= null then
3981 print
"Option Error: --output needs a single source file. Do you prefer --dir?"
3985 # Here we load an process all modules passed on the command line
3986 var mmodules
= modelbuilder
.parse
(arguments
)
3988 if mmodules
.is_empty
then toolcontext
.quit
3990 modelbuilder
.run_phases
3992 for mmodule
in mmodules
do
3993 toolcontext
.info
("*** PROCESS {mmodule} ***", 1)
3995 toolcontext
.run_global_phases
(ms
)