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
(" #define be32toh(val) betoh32(val)")
672 self.header
.add_decl
(" #include <android/log.h>")
673 self.header
.add_decl
(" #define PRINT_ERROR(...) (void)__android_log_print(ANDROID_LOG_WARN, \"Nit\
", __VA_ARGS__)")
674 self.header
.add_decl
("#else")
675 self.header
.add_decl
(" #define PRINT_ERROR(...) fprintf(stderr, __VA_ARGS__)")
676 self.header
.add_decl
("#endif")
678 compile_header_structs
679 compile_nitni_structs
681 var gccd_disable
= modelbuilder
.toolcontext
.opt_no_gcc_directive
.value
682 if gccd_disable
.has
("noreturn") or gccd_disable
.has
("all") then
683 # Signal handler function prototype
684 self.header
.add_decl
("void fatal_exit(int);")
686 self.header
.add_decl
("void fatal_exit(int) __attribute__ ((noreturn));")
689 if gccd_disable
.has
("likely") or gccd_disable
.has
("all") then
690 self.header
.add_decl
("#define likely(x) (x)")
691 self.header
.add_decl
("#define unlikely(x) (x)")
692 else if gccd_disable
.has
("correct-likely") then
693 # invert the `likely` definition
694 # Used by masochists to bench the worst case
695 self.header
.add_decl
("#define likely(x) __builtin_expect((x),0)")
696 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),1)")
698 self.header
.add_decl
("#define likely(x) __builtin_expect((x),1)")
699 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),0)")
702 # Global variable used by intern methods
703 self.header
.add_decl
("extern int glob_argc;")
704 self.header
.add_decl
("extern char **glob_argv;")
705 self.header
.add_decl
("extern val *glob_sys;")
708 # Declaration of structures for live Nit types
709 protected fun compile_header_structs
is abstract
711 # Declaration of structures for nitni undelying the FFI
712 protected fun compile_nitni_structs
714 self.header
.add_decl
"""
715 /* Native reference to Nit objects */
716 /* This structure is used to represent every Nit type in extern methods and custom C code. */
718 struct nitni_ref *next,
719 *prev; /* adjacent global references in global list */
720 int count; /* number of time this global reference has been marked */
723 /* List of global references from C code to Nit objects */
724 /* Instanciated empty at init of Nit system and filled explicitly by user in C code */
725 struct nitni_global_ref_list_t {
726 struct nitni_ref *head, *tail;
728 extern struct nitni_global_ref_list_t *nitni_global_ref_list;
730 /* Initializer of global reference list */
731 extern void nitni_global_ref_list_init();
733 /* Intern function to add a global reference to the list */
734 extern void nitni_global_ref_add( struct nitni_ref *ref );
736 /* Intern function to remove a global reference from the list */
737 extern void nitni_global_ref_remove( struct nitni_ref *ref );
739 /* Increase count on an existing global reference */
740 extern void nitni_global_ref_incr( struct nitni_ref *ref );
742 /* Decrease count on an existing global reference */
743 extern void nitni_global_ref_decr( struct nitni_ref *ref );
747 fun compile_finalizer_function
749 var finalizable_type
= mainmodule
.finalizable_type
750 if finalizable_type
== null then return
752 var finalize_meth
= mainmodule
.try_get_primitive_method
("finalize", finalizable_type
.mclass
)
754 if finalize_meth
== null then
755 modelbuilder
.toolcontext
.error
(null, "Error: the `Finalizable` class does not declare the `finalize` method.")
759 var v
= self.new_visitor
760 v
.add_decl
"void gc_finalize (void *obj, void *client_data) \{"
761 var recv
= v
.new_expr
("obj", finalizable_type
)
762 v
.send
(finalize_meth
, [recv
])
766 # Generate the main C function.
770 # * allocate the Sys object if it exists
771 # * call init if is exists
772 # * call main if it exists
773 fun compile_main_function
775 var v
= self.new_visitor
776 v
.add_decl
("#include <signal.h>")
777 var platform
= target_platform
779 var no_main
= platform
.no_main
or modelbuilder
.toolcontext
.opt_no_main
.value
781 if platform
.supports_libunwind
then
782 v
.add_decl
("#ifndef NO_STACKTRACE")
783 v
.add_decl
("#define UNW_LOCAL_ONLY")
784 v
.add_decl
("#include <libunwind.h>")
785 v
.add_decl
("#include \"c_functions_hash
.h\
"")
788 v
.add_decl
("int glob_argc;")
789 v
.add_decl
("char **glob_argv;")
790 v
.add_decl
("val *glob_sys;")
792 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
793 for tag
in count_type_test_tags
do
794 v
.add_decl
("long count_type_test_resolved_{tag};")
795 v
.add_decl
("long count_type_test_unresolved_{tag};")
796 v
.add_decl
("long count_type_test_skipped_{tag};")
797 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
798 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
799 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
803 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
804 v
.add_decl
("long count_invoke_by_tables;")
805 v
.add_decl
("long count_invoke_by_direct;")
806 v
.add_decl
("long count_invoke_by_inline;")
807 v
.compiler
.header
.add_decl
("extern long count_invoke_by_tables;")
808 v
.compiler
.header
.add_decl
("extern long count_invoke_by_direct;")
809 v
.compiler
.header
.add_decl
("extern long count_invoke_by_inline;")
812 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
813 v
.add_decl
("long count_attr_reads = 0;")
814 v
.add_decl
("long count_isset_checks = 0;")
815 v
.compiler
.header
.add_decl
("extern long count_attr_reads;")
816 v
.compiler
.header
.add_decl
("extern long count_isset_checks;")
819 v
.add_decl
("static void show_backtrace(void) \{")
820 if platform
.supports_libunwind
then
821 v
.add_decl
("#ifndef NO_STACKTRACE")
822 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
823 v
.add_decl
("unw_cursor_t cursor;")
824 v
.add_decl
("if(opt==NULL)\{")
825 v
.add_decl
("unw_context_t uc;")
826 v
.add_decl
("unw_word_t ip;")
827 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
828 v
.add_decl
("unw_getcontext(&uc);")
829 v
.add_decl
("unw_init_local(&cursor, &uc);")
830 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
831 v
.add_decl
("PRINT_ERROR(\"-- Stack Trace ------------------------------\\n\
");")
832 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
833 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
834 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
835 v
.add_decl
(" const char* recv = get_nit_name(procname, strlen(procname));")
836 v
.add_decl
(" if (recv != NULL)\{")
837 v
.add_decl
(" PRINT_ERROR(\"` %s\\n\", recv);")
838 v.add_decl(" \}else\{")
839 v.add_decl(" PRINT_ERROR(\"` %s\\n\
", procname);")
842 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
843 v
.add_decl
("free(procname);")
845 v
.add_decl
("#endif /* NO_STACKTRACE */")
849 v
.add_decl
("void sig_handler(int signo)\{")
850 v
.add_decl
("PRINT_ERROR(\"Caught signal
: %s\\n\
", strsignal(signo));")
851 v
.add_decl
("show_backtrace();")
853 v
.add_decl
("signal(signo, SIG_DFL);")
854 v
.add_decl
("kill(getpid(), signo);")
857 v
.add_decl
("void fatal_exit(int status) \{")
858 v
.add_decl
("show_backtrace();")
859 v
.add_decl
("exit(status);")
863 v
.add_decl
("int nit_main(int argc, char** argv) \{")
865 v
.add_decl
("int main(int argc, char** argv) \{")
868 v
.add
"#if !defined(__ANDROID__) && !defined(TARGET_OS_IPHONE)"
869 v
.add
("signal(SIGABRT, sig_handler);")
870 v
.add
("signal(SIGFPE, sig_handler);")
871 v
.add
("signal(SIGILL, sig_handler);")
872 v
.add
("signal(SIGINT, sig_handler);")
873 v
.add
("signal(SIGTERM, sig_handler);")
874 v
.add
("signal(SIGSEGV, sig_handler);")
876 v
.add
("signal(SIGPIPE, SIG_IGN);")
878 v
.add
("glob_argc = argc; glob_argv = argv;")
879 v
.add
("initialize_gc_option();")
881 v
.add
"initialize_nitni_global_refs();"
883 var main_type
= mainmodule
.sys_type
884 if main_type
!= null then
885 var mainmodule
= v
.compiler
.mainmodule
886 var glob_sys
= v
.init_instance
(main_type
)
887 v
.add
("glob_sys = {glob_sys};")
888 var main_init
= mainmodule
.try_get_primitive_method
("init", main_type
.mclass
)
889 if main_init
!= null then
890 v
.send
(main_init
, [glob_sys
])
892 var main_method
= mainmodule
.try_get_primitive_method
("run", main_type
.mclass
) or else
893 mainmodule
.try_get_primitive_method
("main", main_type
.mclass
)
894 if main_method
!= null then
895 v
.send
(main_method
, [glob_sys
])
899 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
900 v
.add_decl
("long count_type_test_resolved_total = 0;")
901 v
.add_decl
("long count_type_test_unresolved_total = 0;")
902 v
.add_decl
("long count_type_test_skipped_total = 0;")
903 v
.add_decl
("long count_type_test_total_total = 0;")
904 for tag
in count_type_test_tags
do
905 v
.add_decl
("long count_type_test_total_{tag};")
906 v
.add
("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
907 v
.add
("count_type_test_resolved_total += count_type_test_resolved_{tag};")
908 v
.add
("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
909 v
.add
("count_type_test_skipped_total += count_type_test_skipped_{tag};")
910 v
.add
("count_type_test_total_total += count_type_test_total_{tag};")
912 v
.add
("printf(\"# dynamic count_type_test: total %l\\n\");")
913 v
.add
("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\
");")
914 var tags
= count_type_test_tags
.to_a
917 v
.add
("printf(\"{tag}\
");")
918 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
919 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
920 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
921 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\\n\
", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
925 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
926 v
.add_decl
("long count_invoke_total;")
927 v
.add
("count_invoke_total = count_invoke_by_tables + count_invoke_by_direct + count_invoke_by_inline;")
928 v
.add
("printf(\"# dynamic count_invocation: total %ld\\n\", count_invoke_total);")
929 v
.add
("printf(\"by table
: %ld
(%.2f
%%)\\n\
", count_invoke_by_tables, 100.0*count_invoke_by_tables/count_invoke_total);")
930 v
.add
("printf(\"direct
: %ld
(%.2f
%%)\\n\
", count_invoke_by_direct, 100.0*count_invoke_by_direct/count_invoke_total);")
931 v
.add
("printf(\"inlined
: %ld
(%.2f
%%)\\n\
", count_invoke_by_inline, 100.0*count_invoke_by_inline/count_invoke_total);")
934 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
935 v
.add
("printf(\"# dynamic attribute reads: %ld\\n\", count_attr_reads);")
936 v
.add
("printf(\"# dynamic isset checks: %ld\\n\", count_isset_checks);")
942 for m
in mainmodule
.in_importation
.greaters
do
943 var f
= "FILE_"+m
.c_name
944 v
.add
"const char {f}[] = \"{m.location.file.filename.escape_to_c}\
";"
945 provide_declaration
(f
, "extern const char {f}[];")
949 # Copile all C functions related to the [incr|decr]_ref features of the FFI
950 fun compile_nitni_global_ref_functions
952 var v
= self.new_visitor
954 struct nitni_global_ref_list_t *nitni_global_ref_list;
955 void initialize_nitni_global_refs() {
956 nitni_global_ref_list = (struct nitni_global_ref_list_t*)nit_alloc(sizeof(struct nitni_global_ref_list_t));
957 nitni_global_ref_list->head = NULL;
958 nitni_global_ref_list->tail = NULL;
961 void nitni_global_ref_add( struct nitni_ref *ref ) {
962 if ( nitni_global_ref_list->head == NULL ) {
963 nitni_global_ref_list->head = ref;
966 nitni_global_ref_list->tail->next = ref;
967 ref->prev = nitni_global_ref_list->tail;
969 nitni_global_ref_list->tail = ref;
974 void nitni_global_ref_remove( struct nitni_ref *ref ) {
975 if ( ref->prev == NULL ) {
976 nitni_global_ref_list->head = ref->next;
978 ref->prev->next = ref->next;
981 if ( ref->next == NULL ) {
982 nitni_global_ref_list->tail = ref->prev;
984 ref->next->prev = ref->prev;
988 extern void nitni_global_ref_incr( struct nitni_ref *ref ) {
989 if ( ref->count == 0 ) /* not registered */
992 nitni_global_ref_add( ref );
998 extern void nitni_global_ref_decr( struct nitni_ref *ref ) {
999 if ( ref->count == 1 ) /* was last reference */
1001 /* remove from list */
1002 nitni_global_ref_remove( ref );
1010 # List of additional files required to compile (FFI)
1011 var extern_bodies
= new Array[ExternFile]
1013 # List of source files to copy over to the compile dir
1014 var files_to_copy
= new Array[String]
1016 # This is used to avoid adding an extern file more than once
1017 private var seen_extern
= new ArraySet[String]
1019 # Generate code that initialize the attributes on a new instance
1020 fun generate_init_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1022 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1023 self.mainmodule
.linearize_mclassdefs
(cds
)
1025 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1026 npropdef
.init_expr
(v
, recv
)
1031 # Generate code that check if an attribute is correctly initialized
1032 fun generate_check_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1034 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1035 self.mainmodule
.linearize_mclassdefs
(cds
)
1037 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1038 npropdef
.check_expr
(v
, recv
)
1045 var count_type_test_tags
: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
1046 var count_type_test_resolved
: HashMap[String, Int] = init_count_type_test_tags
1047 var count_type_test_unresolved
: HashMap[String, Int] = init_count_type_test_tags
1048 var count_type_test_skipped
: HashMap[String, Int] = init_count_type_test_tags
1050 protected fun init_count_type_test_tags
: HashMap[String, Int]
1052 var res
= new HashMap[String, Int]
1053 for tag
in count_type_test_tags
do
1059 # Display stats about compilation process
1063 # * type tests against resolved types (`x isa Collection[Animal]`)
1064 # * type tests against unresolved types (`x isa Collection[E]`)
1065 # * type tests skipped
1066 # * type tests total
1069 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1070 print
"# static count_type_test"
1071 print
"\tresolved:\tunresolved\tskipped\ttotal"
1072 var count_type_test_total
= init_count_type_test_tags
1073 count_type_test_resolved
["total"] = 0
1074 count_type_test_unresolved
["total"] = 0
1075 count_type_test_skipped
["total"] = 0
1076 count_type_test_total
["total"] = 0
1077 for tag
in count_type_test_tags
do
1078 count_type_test_total
[tag
] = count_type_test_resolved
[tag
] + count_type_test_unresolved
[tag
] + count_type_test_skipped
[tag
]
1079 count_type_test_resolved
["total"] += count_type_test_resolved
[tag
]
1080 count_type_test_unresolved
["total"] += count_type_test_unresolved
[tag
]
1081 count_type_test_skipped
["total"] += count_type_test_skipped
[tag
]
1082 count_type_test_total
["total"] += count_type_test_total
[tag
]
1084 var count_type_test
= count_type_test_total
["total"]
1085 var tags
= count_type_test_tags
.to_a
1089 printn
"\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
1090 printn
"\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
1091 printn
"\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
1092 printn
"\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
1098 fun finalize_ffi_for_module
(mmodule
: MModule) do mmodule
.finalize_ffi
(self)
1101 # A file unit (may be more than one file if
1102 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
1105 var writers
= new Array[CodeWriter]
1106 var required_declarations
= new HashSet[String]
1109 # Where to store generated lines
1112 var lines
: List[String] = new List[String]
1113 var decl_lines
: List[String] = new List[String]
1115 # Add a line in the main part of the generated C
1116 fun add
(s
: String) do self.lines
.add
(s
)
1119 # (used for local or global declaration)
1120 fun add_decl
(s
: String) do self.decl_lines
.add
(s
)
1124 file
.writers
.add
(self)
1128 # A visitor on the AST of property definition that generate the C code.
1129 abstract class AbstractCompilerVisitor
1131 type COMPILER: AbstractCompiler
1133 # The associated compiler
1134 var compiler
: COMPILER
1136 # The current visited AST node
1137 var current_node
: nullable ANode = null is writable
1139 # The current `StaticFrame`
1140 var frame
: nullable StaticFrame = null is writable
1142 # Alias for self.compiler.mainmodule.object_type
1143 fun object_type
: MClassType do return self.compiler
.mainmodule
.object_type
1145 # Alias for self.compiler.mainmodule.bool_type
1146 fun bool_type
: MClassType do return self.compiler
.mainmodule
.bool_type
1148 var writer
: CodeWriter is noinit
1152 self.writer
= new CodeWriter(compiler
.files
.last
)
1155 # Force to get the primitive property named `name` in the instance `recv` or abort
1156 fun get_property
(name
: String, recv
: MType): MMethod
1158 assert recv
isa MClassType
1159 return self.compiler
.modelbuilder
.force_get_primitive_method
(self.current_node
, name
, recv
.mclass
, self.compiler
.mainmodule
)
1162 fun compile_callsite
(callsite
: CallSite, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1164 if callsite
.is_broken
then return null
1165 var initializers
= callsite
.mpropdef
.initializers
1166 if not initializers
.is_empty
then
1167 var recv
= arguments
.first
1170 for p
in initializers
do
1171 if p
isa MMethod then
1173 for x
in p
.intro
.msignature
.mparameters
do
1174 args
.add arguments
[i
]
1178 else if p
isa MAttribute then
1179 self.write_attribute
(p
, recv
, arguments
[i
])
1183 assert i
== arguments
.length
1185 return self.send
(callsite
.mproperty
, [recv
])
1188 return self.send
(callsite
.mproperty
, arguments
)
1191 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable is abstract
1193 fun calloc_array
(ret_type
: MType, arguments
: Array[RuntimeVariable]) is abstract
1195 fun native_array_def
(pname
: String, ret_type
: nullable MType, arguments
: Array[RuntimeVariable]): Bool do return false
1197 # Return an element of a native array.
1198 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1199 fun native_array_get
(native_array
: RuntimeVariable, index
: Int): RuntimeVariable is abstract
1201 # Store an element in a native array.
1202 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1203 fun native_array_set
(native_array
: RuntimeVariable, index
: Int, value
: RuntimeVariable) is abstract
1205 # Evaluate `args` as expressions in the call of `mpropdef` on `recv`.
1206 # This method is used to manage varargs in signatures and returns the real array
1207 # of runtime variables to use in the call.
1208 fun varargize
(mpropdef
: MMethodDef, map
: nullable SignatureMap, recv
: RuntimeVariable, args
: SequenceRead[AExpr]): Array[RuntimeVariable]
1210 var msignature
= mpropdef
.new_msignature
or else mpropdef
.msignature
.as(not null)
1211 var res
= new Array[RuntimeVariable]
1214 if msignature
.arity
== 0 then return res
1217 assert args
.length
== msignature
.arity
1219 res
.add
self.expr
(ne
, null)
1224 # Eval in order of arguments, not parameters
1225 var exprs
= new Array[RuntimeVariable].with_capacity
(args
.length
)
1227 exprs
.add
self.expr
(ne
, null)
1230 # Fill `res` with the result of the evaluation according to the mapping
1231 for i
in [0..msignature
.arity
[ do
1232 var param
= msignature
.mparameters
[i
]
1233 var j
= map
.map
.get_or_null
(i
)
1236 res
.add
(null_instance
)
1239 if param
.is_vararg
and args
[i
].vararg_decl
> 0 then
1240 var vararg
= exprs
.sub
(j
, args
[i
].vararg_decl
)
1241 var elttype
= param
.mtype
1242 var arg
= self.vararg_instance
(mpropdef
, recv
, vararg
, elttype
)
1253 # Anchor a type to the main module and the current receiver
1254 fun anchor
(mtype
: MType): MType
1256 if not mtype
.need_anchor
then return mtype
1257 return mtype
.anchor_to
(self.compiler
.mainmodule
, self.frame
.receiver
)
1260 fun resolve_for
(mtype
: MType, recv
: RuntimeVariable): MType
1262 if not mtype
.need_anchor
then return mtype
1263 return mtype
.resolve_for
(recv
.mcasttype
, self.frame
.receiver
, self.compiler
.mainmodule
, true)
1266 # Unsafely cast a value to a new type
1267 # ie the result share the same C variable but my have a different mcasttype
1268 # NOTE: if the adaptation is useless then `value` is returned as it.
1269 # ENSURE: `result.name == value.name`
1270 fun autoadapt
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable
1272 mtype
= self.anchor
(mtype
)
1273 var valmtype
= value
.mcasttype
1274 if valmtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1278 if valmtype
isa MNullableType and valmtype
.mtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1279 var res
= new RuntimeVariable(value
.name
, valmtype
, valmtype
.mtype
)
1282 var res
= new RuntimeVariable(value
.name
, valmtype
, mtype
)
1287 # Generate a super call from a method definition
1288 fun supercall
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1290 # Adapt the arguments of a method according to targetted `MMethodDef`
1291 fun adapt_signature
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1293 # Unbox all the arguments of a method when implemented `extern` or `intern`
1294 fun unbox_signature_extern
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1296 # Box or unbox a value to another type iff a C type conversion is needed
1297 # ENSURE: `result.mtype.ctype == mtype.ctype`
1298 fun autobox
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1300 # Box extern classes to be used in the generated code
1301 fun box_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1303 # Unbox extern classes to be used in extern code (legacy NI and FFI)
1304 fun unbox_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1306 # Generate a polymorphic subtype test
1307 fun type_test
(value
: RuntimeVariable, mtype
: MType, tag
: String): RuntimeVariable is abstract
1309 # Generate the code required to dynamically check if 2 objects share the same runtime type
1310 fun is_same_type_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1312 # Generate a Nit "is" for two runtime_variables
1313 fun equal_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1317 # Generate a static call on a method definition
1318 fun call
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1320 # Generate a polymorphic send for the method `m` and the arguments `args`
1321 fun send
(m
: MMethod, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1323 # Generate a monomorphic send for the method `m`, the type `t` and the arguments `args`
1324 fun monomorphic_send
(m
: MMethod, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1326 assert t
isa MClassType
1327 var propdef
= m
.lookup_first_definition
(self.compiler
.mainmodule
, t
)
1328 return self.call
(propdef
, t
, args
)
1331 # Generate a monomorphic super send from the method `m`, the type `t` and the arguments `args`
1332 fun monomorphic_super_send
(m
: MMethodDef, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1334 assert t
isa MClassType
1335 m
= m
.lookup_next_definition
(self.compiler
.mainmodule
, t
)
1336 return self.call
(m
, t
, args
)
1339 # Attributes handling
1341 # Generate a polymorphic attribute is_set test
1342 fun isset_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1344 # Generate a polymorphic attribute read
1345 fun read_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1347 # Generate a polymorphic attribute write
1348 fun write_attribute
(a
: MAttribute, recv
: RuntimeVariable, value
: RuntimeVariable) is abstract
1352 # Add a check and an abort for a null receiver if needed
1353 fun check_recv_notnull
(recv
: RuntimeVariable)
1355 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_null
.value
then return
1357 var maybenull
= recv
.mcasttype
isa MNullableType or recv
.mcasttype
isa MNullType
1359 self.add
("if (unlikely({recv} == NULL)) \{")
1360 self.add_abort
("Receiver is null")
1367 private var names
= new HashSet[String]
1368 private var last
: Int = 0
1370 # Return a new name based on `s` and unique in the visitor
1371 fun get_name
(s
: String): String
1373 if not self.names
.has
(s
) then
1377 var i
= self.last
+ 1
1380 if not self.names
.has
(s2
) then
1389 # Return an unique and stable identifier associated with an escapemark
1390 fun escapemark_name
(e
: nullable EscapeMark): String
1393 if frame
.escapemark_names
.has_key
(e
) then return frame
.escapemark_names
[e
]
1395 if name
== null then name
= "label"
1396 name
= get_name
(name
)
1397 frame
.escapemark_names
[e
] = name
1401 # Insert a C label for associated with an escapemark
1402 fun add_escape_label
(e
: nullable EscapeMark)
1404 if e
== null then return
1405 if e
.escapes
.is_empty
then return
1406 add
("BREAK_{escapemark_name(e)}: (void)0;")
1409 # Return a "const char*" variable associated to the classname of the dynamic type of an object
1410 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
1411 fun class_name_string
(value
: RuntimeVariable): String is abstract
1413 # Variables handling
1415 protected var variables
= new HashMap[Variable, RuntimeVariable]
1417 # Return the local runtime_variable associated to a Nit local variable
1418 fun variable
(variable
: Variable): RuntimeVariable
1420 if self.variables
.has_key
(variable
) then
1421 return self.variables
[variable
]
1423 var name
= self.get_name
("var_{variable.name}")
1424 var mtype
= variable
.declared_type
.as(not null)
1425 mtype
= self.anchor
(mtype
)
1426 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1427 self.add_decl
("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
1428 self.variables
[variable
] = res
1433 # Return a new uninitialized local runtime_variable
1434 fun new_var
(mtype
: MType): RuntimeVariable
1436 mtype
= self.anchor
(mtype
)
1437 var name
= self.get_name
("var")
1438 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1439 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1443 # The difference with `new_var` is the C static type of the local variable
1444 fun new_var_extern
(mtype
: MType): RuntimeVariable
1446 mtype
= self.anchor
(mtype
)
1447 var name
= self.get_name
("var")
1448 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1449 self.add_decl
("{mtype.ctype_extern} {name} /* : {mtype} for extern */;")
1453 # Return a new uninitialized named runtime_variable
1454 fun new_named_var
(mtype
: MType, name
: String): RuntimeVariable
1456 mtype
= self.anchor
(mtype
)
1457 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1458 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1462 # Correctly assign a left and a right value
1463 # Boxing and unboxing is performed if required
1464 fun assign
(left
, right
: RuntimeVariable)
1466 right
= self.autobox
(right
, left
.mtype
)
1467 self.add
("{left} = {right};")
1470 # Generate instances
1472 # Generate a alloc-instance + init-attributes
1473 fun init_instance
(mtype
: MClassType): RuntimeVariable is abstract
1475 # Allocate and init attributes of an instance of a standard or extern class
1477 # Does not support universals and the pseudo-internal `NativeArray` class.
1478 fun init_instance_or_extern
(mtype
: MClassType): RuntimeVariable
1481 var ctype
= mtype
.ctype
1482 assert mtype
.mclass
.name
!= "NativeArray"
1483 if not mtype
.is_c_primitive
then
1484 recv
= init_instance
(mtype
)
1485 else if ctype
== "char*" then
1486 recv
= new_expr
("NULL/*special!*/", mtype
)
1488 recv
= new_expr
("({ctype})0/*special!*/", mtype
)
1493 # Set a GC finalizer on `recv`, only if `recv` isa Finalizable
1494 fun set_finalizer
(recv
: RuntimeVariable)
1496 var mtype
= recv
.mtype
1497 var finalizable_type
= compiler
.mainmodule
.finalizable_type
1498 if finalizable_type
!= null and not mtype
.need_anchor
and
1499 mtype
.is_subtype
(compiler
.mainmodule
, null, finalizable_type
) then
1500 add
"gc_register_finalizer({recv});"
1504 # The currently processed module
1506 # alias for `compiler.mainmodule`
1507 fun mmodule
: MModule do return compiler
.mainmodule
1509 # Generate an integer value
1510 fun int_instance
(value
: Int): RuntimeVariable
1512 var t
= mmodule
.int_type
1513 var res
= new RuntimeVariable("{value.to_s}l", t
, t
)
1517 # Generate a byte value
1518 fun byte_instance
(value
: Byte): RuntimeVariable
1520 var t
= mmodule
.byte_type
1521 var res
= new RuntimeVariable("((unsigned char){value.to_s})", t
, t
)
1525 # Generate an int8 value
1526 fun int8_instance
(value
: Int8): RuntimeVariable
1528 var t
= mmodule
.int8_type
1529 var res
= new RuntimeVariable("((int8_t){value.to_s})", t
, t
)
1533 # Generate an int16 value
1534 fun int16_instance
(value
: Int16): RuntimeVariable
1536 var t
= mmodule
.int16_type
1537 var res
= new RuntimeVariable("((int16_t){value.to_s})", t
, t
)
1541 # Generate a uint16 value
1542 fun uint16_instance
(value
: UInt16): RuntimeVariable
1544 var t
= mmodule
.uint16_type
1545 var res
= new RuntimeVariable("((uint16_t){value.to_s})", t
, t
)
1549 # Generate an int32 value
1550 fun int32_instance
(value
: Int32): RuntimeVariable
1552 var t
= mmodule
.int32_type
1553 var res
= new RuntimeVariable("((int32_t){value.to_s})", t
, t
)
1557 # Generate a uint32 value
1558 fun uint32_instance
(value
: UInt32): RuntimeVariable
1560 var t
= mmodule
.uint32_type
1561 var res
= new RuntimeVariable("((uint32_t){value.to_s})", t
, t
)
1565 # Generate a char value
1566 fun char_instance
(value
: Char): RuntimeVariable
1568 var t
= mmodule
.char_type
1570 if value
.code_point
< 128 then
1571 return new RuntimeVariable("'{value.to_s.escape_to_c}'", t
, t
)
1573 return new RuntimeVariable("{value.code_point}", t
, t
)
1577 # Generate a float value
1579 # FIXME pass a Float, not a string
1580 fun float_instance
(value
: String): RuntimeVariable
1582 var t
= mmodule
.float_type
1583 var res
= new RuntimeVariable("{value}", t
, t
)
1587 # Generate an integer value
1588 fun bool_instance
(value
: Bool): RuntimeVariable
1590 var s
= if value
then "1" else "0"
1591 var res
= new RuntimeVariable(s
, bool_type
, bool_type
)
1595 # Generate the `null` value
1596 fun null_instance
: RuntimeVariable
1598 var t
= compiler
.mainmodule
.model
.null_type
1599 var res
= new RuntimeVariable("((val*)NULL)", t
, t
)
1603 # Generate a string value
1604 fun string_instance
(string
: String): RuntimeVariable
1606 var mtype
= mmodule
.string_type
1607 var name
= self.get_name
("varonce")
1608 self.add_decl
("static {mtype.ctype} {name};")
1609 var res
= self.new_var
(mtype
)
1610 self.add
("if (likely({name}!=NULL)) \{")
1611 self.add
("{res} = {name};")
1612 self.add
("\} else \{")
1613 var native_mtype
= mmodule
.native_string_type
1614 var nat
= self.new_var
(native_mtype
)
1615 self.add
("{nat} = \"{string.escape_to_c}\
";")
1616 var bytelen
= self.int_instance
(string
.bytelen
)
1617 var unilen
= self.int_instance
(string
.length
)
1618 self.add
("{res} = {self.send(self.get_property("to_s_full", native_mtype), [nat, bytelen, unilen]).as(not null)};")
1619 self.add
("{name} = {res};")
1624 fun value_instance
(object
: Object): RuntimeVariable
1626 if object
isa Int then
1627 return int_instance
(object
)
1628 else if object
isa Bool then
1629 return bool_instance
(object
)
1630 else if object
isa String then
1631 return string_instance
(object
)
1637 # Generate an array value
1638 fun array_instance
(array
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1640 # Get an instance of a array for a vararg
1641 fun vararg_instance
(mpropdef
: MPropDef, recv
: RuntimeVariable, varargs
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1645 # Add a line in the main part of the generated C
1646 fun add
(s
: String) do self.writer
.lines
.add
(s
)
1649 # (used for local or global declaration)
1650 fun add_decl
(s
: String) do self.writer
.decl_lines
.add
(s
)
1652 # Request the presence of a global declaration
1653 fun require_declaration
(key
: String)
1655 var reqs
= self.writer
.file
.required_declarations
1656 if reqs
.has
(key
) then return
1658 var node
= current_node
1659 if node
!= null then compiler
.requirers_of_declarations
[key
] = node
1662 # Add a declaration in the local-header
1663 # The declaration is ensured to be present once
1664 fun declare_once
(s
: String)
1666 self.compiler
.provide_declaration
(s
, s
)
1667 self.require_declaration
(s
)
1670 # Look for a needed .h and .c file for a given module
1671 # This is used for the legacy FFI
1672 fun add_extern
(mmodule
: MModule)
1674 var file
= mmodule
.filepath
1675 file
= file
.strip_extension
(".nit")
1676 var tryfile
= file
+ ".nit.h"
1677 if tryfile
.file_exists
then
1678 self.declare_once
("#include \"{tryfile.basename}\
"")
1679 self.compiler
.files_to_copy
.add
(tryfile
)
1681 tryfile
= file
+ "_nit.h"
1682 if tryfile
.file_exists
then
1683 self.declare_once
("#include \"{tryfile.basename}\
"")
1684 self.compiler
.files_to_copy
.add
(tryfile
)
1687 if self.compiler
.seen_extern
.has
(file
) then return
1688 self.compiler
.seen_extern
.add
(file
)
1689 tryfile
= file
+ ".nit.c"
1690 if not tryfile
.file_exists
then
1691 tryfile
= file
+ "_nit.c"
1692 if not tryfile
.file_exists
then return
1694 var f
= new ExternCFile(tryfile
.basename
, "")
1695 self.compiler
.extern_bodies
.add
(f
)
1696 self.compiler
.files_to_copy
.add
(tryfile
)
1699 # Return a new local runtime_variable initialized with the C expression `cexpr`.
1700 fun new_expr
(cexpr
: String, mtype
: MType): RuntimeVariable
1702 var res
= new_var
(mtype
)
1703 self.add
("{res} = {cexpr};")
1707 # Generate generic abort
1708 # used by aborts, asserts, casts, etc.
1709 fun add_abort
(message
: String)
1711 self.add
("PRINT_ERROR(\"Runtime error
: %s\
", \"{message.escape_to_c}\
");")
1717 if self.current_node
!= null and self.current_node
.location
.file
!= null and
1718 self.current_node
.location
.file
.mmodule
!= null then
1719 var f
= "FILE_{self.current_node.location.file.mmodule.c_name}"
1720 self.require_declaration
(f
)
1721 self.add
("PRINT_ERROR(\" (%s
:%d
)\\n\
", {f}, {current_node.location.line_start});")
1723 self.add
("PRINT_ERROR(\"\\n\
");")
1725 self.add
("fatal_exit(1);")
1728 # Add a dynamic cast
1729 fun add_cast
(value
: RuntimeVariable, mtype
: MType, tag
: String)
1731 var res
= self.type_test
(value
, mtype
, tag
)
1732 self.add
("if (unlikely(!{res})) \{")
1733 var cn
= self.class_name_string
(value
)
1734 self.add
("PRINT_ERROR(\"Runtime error
: Cast failed
. Expected `%s`, got
`%s`\
", \"{mtype.to_s.escape_to_c}\
", {cn});")
1739 # Generate a return with the value `s`
1740 fun ret
(s
: RuntimeVariable)
1742 self.assign
(self.frame
.returnvar
.as(not null), s
)
1743 self.add
("goto {self.frame.returnlabel.as(not null)};")
1746 # Compile a statement (if any)
1747 fun stmt
(nexpr
: nullable AExpr)
1749 if nexpr
== null then return
1750 if nexpr
.is_broken
then
1751 # Untyped expression.
1752 # Might mean dead code or invalid code
1754 add_abort
("FATAL: bad statement executed.")
1758 var narray
= nexpr
.comprehension
1759 if narray
!= null then
1760 var recv
= frame
.comprehension
.as(not null)
1761 var val
= expr
(nexpr
, narray
.element_mtype
)
1762 compile_callsite
(narray
.push_callsite
.as(not null), [recv
, val
])
1766 var old
= self.current_node
1767 self.current_node
= nexpr
1769 self.current_node
= old
1772 # Compile an expression an return its result
1773 # `mtype` is the expected return type, pass null if no specific type is expected.
1774 fun expr
(nexpr
: AExpr, mtype
: nullable MType): RuntimeVariable
1776 var old
= self.current_node
1777 self.current_node
= nexpr
1780 if nexpr
.mtype
!= null then
1781 res
= nexpr
.expr
(self)
1785 # Untyped expression.
1786 # Might mean dead code or invalid code.
1788 add_abort
("FATAL: bad expression executed.")
1789 # and return a placebo result to please the C compiler
1790 if mtype
== null then mtype
= compiler
.mainmodule
.object_type
1791 res
= new_var
(mtype
)
1793 self.current_node
= old
1797 if mtype
!= null then
1798 mtype
= self.anchor
(mtype
)
1799 res
= self.autobox
(res
, mtype
)
1801 res
= autoadapt
(res
, nexpr
.mtype
.as(not null))
1802 var implicit_cast_to
= nexpr
.implicit_cast_to
1803 if implicit_cast_to
!= null and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_autocast
.value
then
1804 add_cast
(res
, implicit_cast_to
, "auto")
1805 res
= autoadapt
(res
, implicit_cast_to
)
1807 self.current_node
= old
1811 # Alias for `self.expr(nexpr, self.bool_type)`
1812 fun expr_bool
(nexpr
: AExpr): RuntimeVariable do return expr
(nexpr
, bool_type
)
1814 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1815 fun debug
(message
: String)
1817 var node
= self.current_node
1818 if node
== null then
1819 print
"?: {message}"
1823 self.add
("/* DEBUG: {message} */")
1827 # A C function associated to a Nit method
1828 # Because of customization, a given Nit method can be compiler more that once
1829 abstract class AbstractRuntimeFunction
1831 type COMPILER: AbstractCompiler
1832 type VISITOR: AbstractCompilerVisitor
1834 # The associated Nit method
1835 var mmethoddef
: MMethodDef
1837 # The mangled c name of the runtime_function
1838 # Subclasses should redefine `build_c_name` instead
1841 var res
= self.c_name_cache
1842 if res
!= null then return res
1843 res
= self.build_c_name
1844 self.c_name_cache
= res
1848 # Non cached version of `c_name`
1849 protected fun build_c_name
: String is abstract
1851 protected var c_name_cache
: nullable String = null is writable
1853 # Implements a call of the runtime_function
1854 # May inline the body or generate a C function call
1855 fun call
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1857 # Generate the code for the `AbstractRuntimeFunction`
1858 # Warning: compile more than once compilation makes CC unhappy
1859 fun compile_to_c
(compiler
: COMPILER) is abstract
1862 # A runtime variable hold a runtime value in C.
1863 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1865 # 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.
1866 class RuntimeVariable
1867 # The name of the variable in the C code
1870 # The static type of the variable (as declard in C)
1873 # The current casted type of the variable (as known in Nit)
1874 var mcasttype
: MType is writable
1876 # If the variable exaclty a mcasttype?
1877 # false (usual value) means that the variable is a mcasttype or a subtype.
1878 var is_exact
: Bool = false is writable
1882 assert not mtype
.need_anchor
1883 assert not mcasttype
.need_anchor
1886 redef fun to_s
do return name
1891 if self.is_exact
then
1892 exact_str
= " exact"
1897 if self.mtype
== self.mcasttype
then
1898 type_str
= "{mtype}{exact_str}"
1900 type_str
= "{mtype}({mcasttype}{exact_str})"
1902 return "<{name}:{type_str}>"
1906 # The static context of a visited property in a `AbstractCompilerVisitor`
1909 type VISITOR: AbstractCompilerVisitor
1911 # The associated visitor
1912 var visitor
: VISITOR
1914 # The executed property.
1915 # A Method in case of a call, an attribute in case of a default initialization.
1916 var mpropdef
: MPropDef
1918 # The static type of the receiver
1919 var receiver
: MClassType
1921 # Arguments of the method (the first is the receiver)
1922 var arguments
: Array[RuntimeVariable]
1924 # The runtime_variable associated to the return (in a function)
1925 var returnvar
: nullable RuntimeVariable = null is writable
1927 # The label at the end of the property
1928 var returnlabel
: nullable String = null is writable
1930 # Labels associated to a each escapemarks.
1931 # Because of inlinings, escape-marks must be associated to their context (the frame)
1932 private var escapemark_names
= new HashMap[EscapeMark, String]
1934 # The array comprehension currently filled, if any
1935 private var comprehension
: nullable RuntimeVariable = null
1939 # Return the C type associated to a given Nit static type
1940 fun ctype
: String do return "val*"
1942 # C type outside of the compiler code and in boxes
1943 fun ctype_extern
: String do return "val*"
1945 # Short name of the `ctype` to use in unions
1946 fun ctypename
: String do return "val"
1948 # Is the associated C type a primitive one?
1950 # ENSURE `result == (ctype != "val*")`
1951 fun is_c_primitive
: Bool do return false
1954 redef class MClassType
1956 redef var ctype
is lazy
do
1957 if mclass
.name
== "Int" then
1959 else if mclass
.name
== "Bool" then
1961 else if mclass
.name
== "Char" then
1963 else if mclass
.name
== "Float" then
1965 else if mclass
.name
== "Int8" then
1967 else if mclass
.name
== "Byte" then
1968 return "unsigned char"
1969 else if mclass
.name
== "Int16" then
1971 else if mclass
.name
== "UInt16" then
1973 else if mclass
.name
== "Int32" then
1975 else if mclass
.name
== "UInt32" then
1977 else if mclass
.name
== "NativeString" then
1979 else if mclass
.name
== "NativeArray" then
1986 redef var is_c_primitive
is lazy
do return ctype
!= "val*"
1988 redef fun ctype_extern
: String
1990 if mclass
.kind
== extern_kind
then
1997 redef fun ctypename
: String
1999 if mclass
.name
== "Int" then
2001 else if mclass
.name
== "Bool" then
2003 else if mclass
.name
== "Char" then
2005 else if mclass
.name
== "Float" then
2007 else if mclass
.name
== "Int8" then
2009 else if mclass
.name
== "Byte" then
2011 else if mclass
.name
== "Int16" then
2013 else if mclass
.name
== "UInt16" then
2015 else if mclass
.name
== "Int32" then
2017 else if mclass
.name
== "UInt32" then
2019 else if mclass
.name
== "NativeString" then
2021 else if mclass
.name
== "NativeArray" then
2022 #return "{self.arguments.first.ctype}*"
2030 redef class MPropDef
2031 type VISITOR: AbstractCompilerVisitor
2034 redef class MMethodDef
2035 # Can the body be inlined?
2036 fun can_inline
(v
: VISITOR): Bool
2038 if is_abstract
then return true
2039 if constant_value
!= null then return true
2040 var modelbuilder
= v
.compiler
.modelbuilder
2041 var node
= modelbuilder
.mpropdef2node
(self)
2042 if node
isa APropdef then
2043 return node
.can_inline
2044 else if node
isa AClassdef then
2045 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
2052 # Inline the body in another visitor
2053 fun compile_inside_to_c
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
2055 var modelbuilder
= v
.compiler
.modelbuilder
2056 var val
= constant_value
2057 var node
= modelbuilder
.mpropdef2node
(self)
2060 var cn
= v
.class_name_string
(arguments
.first
)
2061 v
.current_node
= node
2062 v
.add
("PRINT_ERROR(\"Runtime error
: Abstract method
`%s` called on
`%s`\
", \"{mproperty.name.escape_to_c}\
", {cn});")
2067 if node
isa APropdef then
2068 var oldnode
= v
.current_node
2069 v
.current_node
= node
2070 self.compile_parameter_check
(v
, arguments
)
2071 node
.compile_to_c
(v
, self, arguments
)
2072 v
.current_node
= oldnode
2073 else if node
isa AClassdef then
2074 var oldnode
= v
.current_node
2075 v
.current_node
= node
2076 self.compile_parameter_check
(v
, arguments
)
2077 node
.compile_to_c
(v
, self, arguments
)
2078 v
.current_node
= oldnode
2079 else if val
!= null then
2080 v
.ret
(v
.value_instance
(val
))
2087 # Generate type checks in the C code to check covariant parameters
2088 fun compile_parameter_check
(v
: VISITOR, arguments
: Array[RuntimeVariable])
2090 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_covariance
.value
then return
2092 var msignature
= self.msignature
.as(not null)
2094 for i
in [0..msignature
.arity
[ do
2095 var mp
= msignature
.mparameters
[i
]
2096 # skip test for vararg since the array is instantiated with the correct polymorphic type
2097 if mp
.is_vararg
then continue
2099 # skip if the cast is not required
2100 var origmtype
= self.mproperty
.intro
.msignature
.mparameters
[i
].mtype
2101 if not origmtype
.need_anchor
then continue
2103 # get the parameter type
2104 var mtype
= mp
.mtype
2107 # note that v decides if and how to implements the cast
2108 v
.add
("/* Covariant cast for argument {i} ({mp.name}) {arguments[i+1].inspect} isa {mtype} */")
2109 v
.add_cast
(arguments
[i
+1], mtype
, "covariance")
2116 redef class APropdef
2117 fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
2119 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at
{location.to_s}\\n\
");")
2120 debug
("Not yet implemented")
2123 fun can_inline
: Bool do return true
2126 redef class AMethPropdef
2127 redef fun compile_to_c
(v
, mpropdef
, arguments
)
2129 # Call the implicit super-init
2130 var auto_super_inits
= self.auto_super_inits
2131 if auto_super_inits
!= null then
2132 var args
= [arguments
.first
]
2133 for auto_super_init
in auto_super_inits
do
2134 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2136 for i
in [0..auto_super_init
.msignature
.arity
+1[ do
2137 args
.add
(arguments
[i
])
2139 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2140 v
.compile_callsite
(auto_super_init
, args
)
2143 if auto_super_call
then
2144 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
2147 # Try special compilation
2148 if mpropdef
.is_intern
then
2149 if compile_intern_to_c
(v
, mpropdef
, arguments
) then return
2151 if mpropdef
.is_extern
then
2152 if mpropdef
.mproperty
.is_init
then
2153 if compile_externinit_to_c
(v
, mpropdef
, arguments
) then return
2155 if compile_externmeth_to_c
(v
, mpropdef
, arguments
) then return
2159 # Compile block if any
2160 var n_block
= n_block
2161 if n_block
!= null then
2162 for i
in [0..mpropdef
.msignature
.arity
[ do
2163 var variable
= self.n_signature
.n_params
[i
].variable
.as(not null)
2164 v
.assign
(v
.variable
(variable
), arguments
[i
+1])
2171 var cn
= v
.class_name_string
(arguments
.first
)
2172 v
.add
("PRINT_ERROR(\"Runtime error
: uncompiled method
`%s` called on
`%s`. NOT YET IMPLEMENTED\
", \"{mpropdef.mproperty.name.escape_to_c}\
", {cn});")
2176 redef fun can_inline
2178 if self.auto_super_inits
!= null then return false
2179 var nblock
= self.n_block
2180 if nblock
== null then return true
2181 if (mpropdef
.mproperty
.name
== "==" or mpropdef
.mproperty
.name
== "!=") and mpropdef
.mclassdef
.mclass
.name
== "Object" then return true
2182 if nblock
isa ABlockExpr and nblock
.n_expr
.length
== 0 then return true
2186 fun compile_intern_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
2188 var pname
= mpropdef
.mproperty
.name
2189 var cname
= mpropdef
.mclassdef
.mclass
.name
2190 var ret
= mpropdef
.msignature
.return_mtype
2192 ret
= v
.resolve_for
(ret
, arguments
.first
)
2194 if pname
!= "==" and pname
!= "!=" then
2195 v
.adapt_signature
(mpropdef
, arguments
)
2196 v
.unbox_signature_extern
(mpropdef
, arguments
)
2198 if cname
== "Int" then
2199 if pname
== "output" then
2200 v
.add
("printf(\"%ld\\n\
", {arguments.first});")
2202 else if pname
== "object_id" then
2203 v
.ret
(arguments
.first
)
2205 else if pname
== "+" then
2206 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2208 else if pname
== "-" then
2209 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2211 else if pname
== "unary -" then
2212 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2214 else if pname
== "unary +" then
2217 else if pname
== "*" then
2218 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2220 else if pname
== "/" then
2221 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2223 else if pname
== "%" then
2224 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2226 else if pname
== "==" then
2227 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2229 else if pname
== "!=" then
2230 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2231 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2233 else if pname
== "<" then
2234 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2236 else if pname
== ">" then
2237 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2239 else if pname
== "<=" then
2240 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2242 else if pname
== ">=" then
2243 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2245 else if pname
== "to_i8" then
2246 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2248 else if pname
== "to_i16" then
2249 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2251 else if pname
== "to_u16" then
2252 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2254 else if pname
== "to_i32" then
2255 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2257 else if pname
== "to_u32" then
2258 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2260 else if pname
== "to_f" then
2261 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2263 else if pname
== "to_b" then
2264 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2266 else if pname
== "code_point" then
2267 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2269 else if pname
== "&" then
2270 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2272 else if pname
== "|" then
2273 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2275 else if pname
== ">>" then
2276 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2278 else if pname
== "<<" then
2279 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2282 else if cname
== "Char" then
2283 if pname
== "object_id" then
2284 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2286 else if pname
== "successor" then
2287 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2289 else if pname
== "predecessor" then
2290 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2292 else if pname
== "==" then
2293 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2295 else if pname
== "!=" then
2296 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2297 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2299 else if pname
== "<" then
2300 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2302 else if pname
== ">" then
2303 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2305 else if pname
== "<=" then
2306 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2308 else if pname
== ">=" then
2309 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2311 else if pname
== "to_i" then
2312 v
.ret
(v
.new_expr
("{arguments[0]}-'0'", ret
.as(not null)))
2314 else if pname
== "code_point" then
2315 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2318 else if cname
== "Byte" then
2319 if pname
== "output" then
2320 v
.add
("printf(\"%x\\n\
", {arguments.first});")
2322 else if pname
== "object_id" then
2323 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2325 else if pname
== "+" then
2326 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2328 else if pname
== "-" then
2329 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2331 else if pname
== "unary -" then
2332 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2334 else if pname
== "unary +" then
2337 else if pname
== "*" then
2338 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2340 else if pname
== "/" then
2341 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2343 else if pname
== "%" then
2344 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2346 else if pname
== "==" then
2347 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2349 else if pname
== "!=" then
2350 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2351 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2353 else if pname
== "<" then
2354 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2356 else if pname
== ">" then
2357 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2359 else if pname
== "<=" then
2360 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2362 else if pname
== ">=" then
2363 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2365 else if pname
== ">>" then
2366 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2368 else if pname
== "<<" then
2369 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2371 else if pname
== "&" then
2372 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2374 else if pname
== "to_i" then
2375 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2377 else if pname
== "to_f" then
2378 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2380 else if pname
== "to_i8" then
2381 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2383 else if pname
== "to_i16" then
2384 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2386 else if pname
== "to_u16" then
2387 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2389 else if pname
== "to_i32" then
2390 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2392 else if pname
== "to_u32" then
2393 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2395 else if pname
== "ascii" then
2396 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2399 else if cname
== "Bool" then
2400 if pname
== "output" then
2401 v
.add
("printf({arguments.first}?\"true\\n\
":\"false\\n\
");")
2403 else if pname
== "object_id" then
2404 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2406 else if pname
== "==" then
2407 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2409 else if pname
== "!=" then
2410 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2411 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2414 else if cname
== "Float" then
2415 if pname
== "output" then
2416 v
.add
("printf(\"%f\\n\
", {arguments.first});")
2418 else if pname
== "object_id" then
2419 v
.ret
(v
.new_expr
("(double){arguments.first}", ret
.as(not null)))
2421 else if pname
== "+" then
2422 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2424 else if pname
== "-" then
2425 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2427 else if pname
== "unary -" then
2428 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2430 else if pname
== "unary +" then
2433 else if pname
== "succ" then
2434 v
.ret
(v
.new_expr
("{arguments[0]}+1", ret
.as(not null)))
2436 else if pname
== "prec" then
2437 v
.ret
(v
.new_expr
("{arguments[0]}-1", ret
.as(not null)))
2439 else if pname
== "*" then
2440 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2442 else if pname
== "/" then
2443 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2445 else if pname
== "==" then
2446 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2448 else if pname
== "!=" then
2449 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2450 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2452 else if pname
== "<" then
2453 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2455 else if pname
== ">" then
2456 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2458 else if pname
== "<=" then
2459 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2461 else if pname
== ">=" then
2462 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2464 else if pname
== "to_i" then
2465 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2467 else if pname
== "to_b" then
2468 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2470 else if pname
== "to_i8" then
2471 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2473 else if pname
== "to_i16" then
2474 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2476 else if pname
== "to_u16" then
2477 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2479 else if pname
== "to_i32" then
2480 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2482 else if pname
== "to_u32" then
2483 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2486 else if cname
== "NativeString" then
2487 if pname
== "[]" then
2488 v
.ret
(v
.new_expr
("(unsigned char)((int){arguments[0]}[{arguments[1]}])", ret
.as(not null)))
2490 else if pname
== "[]=" then
2491 v
.add
("{arguments[0]}[{arguments[1]}]=(unsigned char){arguments[2]};")
2493 else if pname
== "copy_to" then
2494 v
.add
("memmove({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
2496 else if pname
== "atoi" then
2497 v
.ret
(v
.new_expr
("atoi({arguments[0]});", ret
.as(not null)))
2499 else if pname
== "fast_cstring" then
2500 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2502 else if pname
== "==" then
2503 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2505 else if pname
== "!=" then
2506 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2507 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2509 else if pname
== "new" then
2510 v
.ret
(v
.new_expr
("(char*)nit_alloc({arguments[1]})", ret
.as(not null)))
2512 else if pname
== "fetch_4_chars" then
2513 v
.ret
(v
.new_expr
("(long)*((uint32_t*)({arguments[0]} + {arguments[1]}))", ret
.as(not null)))
2515 else if pname
== "fetch_4_hchars" then
2516 v
.ret
(v
.new_expr
("(long)be32toh(*((uint32_t*)({arguments[0]} + {arguments[1]})))", ret
.as(not null)))
2519 else if cname
== "NativeArray" then
2520 return v
.native_array_def
(pname
, ret
, arguments
)
2521 else if cname
== "Int8" then
2522 if pname
== "output" then
2523 v
.add
("printf(\"%\
"PRIi8 \"\\n\
", {arguments.first});")
2525 else if pname
== "object_id" then
2526 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2528 else if pname
== "+" then
2529 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2531 else if pname
== "-" then
2532 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2534 else if pname
== "unary -" then
2535 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2537 else if pname
== "unary +" then
2540 else if pname
== "*" then
2541 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2543 else if pname
== "/" then
2544 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2546 else if pname
== "%" then
2547 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2549 else if pname
== "<<" then
2550 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", 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
.equal_test
(arguments
[0], arguments
[1]))
2558 else if pname
== "!=" then
2559 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2560 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2562 else if pname
== "<" then
2563 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2565 else if pname
== ">" then
2566 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2568 else if pname
== "<=" then
2569 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2571 else if pname
== ">=" then
2572 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2574 else if pname
== "to_i" then
2575 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2577 else if pname
== "to_b" then
2578 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2580 else if pname
== "to_i16" then
2581 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2583 else if pname
== "to_u16" then
2584 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2586 else if pname
== "to_i32" then
2587 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2589 else if pname
== "to_u32" then
2590 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2592 else if pname
== "to_f" then
2593 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2595 else if pname
== "&" then
2596 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2598 else if pname
== "|" then
2599 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2601 else if pname
== "^" then
2602 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2604 else if pname
== "unary ~" then
2605 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2608 else if cname
== "Int16" then
2609 if pname
== "output" then
2610 v
.add
("printf(\"%\
"PRIi16 \"\\n\
", {arguments.first});")
2612 else if pname
== "object_id" then
2613 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2615 else if pname
== "+" then
2616 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2618 else if pname
== "-" then
2619 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2621 else if pname
== "unary -" then
2622 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2624 else if pname
== "unary +" then
2627 else if pname
== "*" then
2628 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2630 else if pname
== "/" then
2631 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2633 else if pname
== "%" then
2634 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2636 else if pname
== "<<" then
2637 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2639 else if pname
== ">>" then
2640 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2642 else if pname
== "==" then
2643 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2645 else if pname
== "!=" then
2646 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2647 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2649 else if pname
== "<" then
2650 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2652 else if pname
== ">" then
2653 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2655 else if pname
== "<=" then
2656 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2658 else if pname
== ">=" then
2659 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2661 else if pname
== "to_i" then
2662 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2664 else if pname
== "to_b" then
2665 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2667 else if pname
== "to_i8" then
2668 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2670 else if pname
== "to_u16" then
2671 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2673 else if pname
== "to_i32" then
2674 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2676 else if pname
== "to_u32" then
2677 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2679 else if pname
== "to_f" then
2680 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2682 else if pname
== "&" then
2683 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2685 else if pname
== "|" then
2686 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2688 else if pname
== "^" then
2689 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2691 else if pname
== "unary ~" then
2692 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2695 else if cname
== "UInt16" then
2696 if pname
== "output" then
2697 v
.add
("printf(\"%\
"PRIu16 \"\\n\
", {arguments.first});")
2699 else if pname
== "object_id" then
2700 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2702 else if pname
== "+" then
2703 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2705 else if pname
== "-" then
2706 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2708 else if pname
== "unary -" then
2709 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2711 else if pname
== "unary +" then
2714 else if pname
== "*" then
2715 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2717 else if pname
== "/" then
2718 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2720 else if pname
== "%" then
2721 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2723 else if pname
== "<<" then
2724 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2726 else if pname
== ">>" then
2727 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2729 else if pname
== "==" then
2730 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2732 else if pname
== "!=" then
2733 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2734 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2736 else if pname
== "<" then
2737 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2739 else if pname
== ">" then
2740 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2742 else if pname
== "<=" then
2743 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2745 else if pname
== ">=" then
2746 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2748 else if pname
== "to_i" then
2749 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2751 else if pname
== "to_b" then
2752 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2754 else if pname
== "to_i8" then
2755 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2757 else if pname
== "to_i16" then
2758 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2760 else if pname
== "to_i32" then
2761 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2763 else if pname
== "to_u32" then
2764 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2766 else if pname
== "to_f" then
2767 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2769 else if pname
== "&" then
2770 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2772 else if pname
== "|" then
2773 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2775 else if pname
== "^" then
2776 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2778 else if pname
== "unary ~" then
2779 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2782 else if cname
== "Int32" then
2783 if pname
== "output" then
2784 v
.add
("printf(\"%\
"PRIi32 \"\\n\
", {arguments.first});")
2786 else if pname
== "object_id" then
2787 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2789 else if pname
== "+" then
2790 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2792 else if pname
== "-" then
2793 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2795 else if pname
== "unary -" then
2796 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2798 else if pname
== "unary +" then
2801 else if pname
== "*" then
2802 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2804 else if pname
== "/" then
2805 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2807 else if pname
== "%" then
2808 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2810 else if pname
== "<<" then
2811 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2813 else if pname
== ">>" then
2814 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2816 else if pname
== "==" then
2817 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2819 else if pname
== "!=" then
2820 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2821 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2823 else if pname
== "<" then
2824 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2826 else if pname
== ">" then
2827 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2829 else if pname
== "<=" then
2830 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2832 else if pname
== ">=" then
2833 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2835 else if pname
== "to_i" then
2836 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2838 else if pname
== "to_b" then
2839 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2841 else if pname
== "to_i8" then
2842 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2844 else if pname
== "to_i16" then
2845 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2847 else if pname
== "to_u16" then
2848 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2850 else if pname
== "to_u32" then
2851 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2853 else if pname
== "to_f" then
2854 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2856 else if pname
== "&" then
2857 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2859 else if pname
== "|" then
2860 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2862 else if pname
== "^" then
2863 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2865 else if pname
== "unary ~" then
2866 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2869 else if cname
== "UInt32" then
2870 if pname
== "output" then
2871 v
.add
("printf(\"%\
"PRIu32 \"\\n\
", {arguments.first});")
2873 else if pname
== "object_id" then
2874 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2876 else if pname
== "+" then
2877 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2879 else if pname
== "-" then
2880 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2882 else if pname
== "unary -" then
2883 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2885 else if pname
== "unary +" then
2888 else if pname
== "*" then
2889 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2891 else if pname
== "/" then
2892 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2894 else if pname
== "%" then
2895 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2897 else if pname
== "<<" then
2898 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2900 else if pname
== ">>" then
2901 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2903 else if pname
== "==" then
2904 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2906 else if pname
== "!=" then
2907 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2908 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2910 else if pname
== "<" then
2911 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2913 else if pname
== ">" then
2914 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2916 else if pname
== "<=" then
2917 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2919 else if pname
== ">=" then
2920 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2922 else if pname
== "to_i" then
2923 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2925 else if pname
== "to_b" then
2926 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2928 else if pname
== "to_i8" then
2929 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2931 else if pname
== "to_i16" then
2932 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2934 else if pname
== "to_u16" then
2935 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2937 else if pname
== "to_i32" then
2938 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2940 else if pname
== "to_f" then
2941 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2943 else if pname
== "&" then
2944 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2946 else if pname
== "|" then
2947 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2949 else if pname
== "^" then
2950 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2952 else if pname
== "unary ~" then
2953 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2957 if pname
== "exit" then
2958 v
.add
("exit({arguments[1]});")
2960 else if pname
== "sys" then
2961 v
.ret
(v
.new_expr
("glob_sys", ret
.as(not null)))
2963 else if pname
== "calloc_string" then
2964 v
.ret
(v
.new_expr
("(char*)nit_alloc({arguments[1]})", ret
.as(not null)))
2966 else if pname
== "calloc_array" then
2967 v
.calloc_array
(ret
.as(not null), arguments
)
2969 else if pname
== "object_id" then
2970 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2972 else if pname
== "is_same_type" then
2973 v
.ret
(v
.is_same_type_test
(arguments
[0], arguments
[1]))
2975 else if pname
== "is_same_instance" then
2976 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2978 else if pname
== "output_class_name" then
2979 var nat
= v
.class_name_string
(arguments
.first
)
2980 v
.add
("printf(\"%s\\n\
", {nat});")
2982 else if pname
== "native_class_name" then
2983 var nat
= v
.class_name_string
(arguments
.first
)
2984 v
.ret
(v
.new_expr
("(char*){nat}", ret
.as(not null)))
2986 else if pname
== "force_garbage_collection" then
2987 v
.add
("nit_gcollect();")
2989 else if pname
== "native_argc" then
2990 v
.ret
(v
.new_expr
("glob_argc", ret
.as(not null)))
2992 else if pname
== "native_argv" then
2993 v
.ret
(v
.new_expr
("glob_argv[{arguments[1]}]", ret
.as(not null)))
2999 # Compile an extern method
3000 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3001 fun compile_externmeth_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3004 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3005 if at
!= null and at
.n_args
.length
== 1 then
3006 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3007 if externname
== null then return false
3011 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3012 var res
: nullable RuntimeVariable = null
3013 var ret
= mpropdef
.msignature
.return_mtype
3015 ret
= v
.resolve_for
(ret
, arguments
.first
)
3016 res
= v
.new_var_extern
(ret
)
3018 v
.adapt_signature
(mpropdef
, arguments
)
3019 v
.unbox_signature_extern
(mpropdef
, arguments
)
3022 v
.add
("{externname}({arguments.join(", ")});")
3024 v
.add
("{res} = {externname}({arguments.join(", ")});")
3025 res
= v
.box_extern
(res
, ret
.as(not null))
3031 # Compile an extern factory
3032 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3033 fun compile_externinit_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3036 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3038 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3039 if externname
== null then return false
3043 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3044 v
.adapt_signature
(mpropdef
, arguments
)
3045 v
.unbox_signature_extern
(mpropdef
, arguments
)
3046 var ret
= arguments
.first
.mtype
3047 var res
= v
.new_var_extern
(ret
)
3051 v
.add
("{res} = {externname}({arguments.join(", ")});")
3052 res
= v
.box_extern
(res
, ret
)
3058 redef class AAttrPropdef
3059 redef fun can_inline
: Bool do return not is_lazy
3061 redef fun compile_to_c
(v
, mpropdef
, arguments
)
3063 if mpropdef
== mreadpropdef
then
3064 assert arguments
.length
== 1
3065 var recv
= arguments
.first
3069 var ret
= self.mtype
3070 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3071 var guard
= self.mlazypropdef
.mproperty
3073 set
= v
.isset_attribute
(self.mpropdef
.mproperty
, recv
)
3075 set
= v
.read_attribute
(guard
, recv
)
3077 v
.add
("if(likely({set})) \{")
3078 res
= v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3081 var value
= evaluate_expr
(v
, recv
)
3083 v
.assign
(res
, value
)
3085 var true_v
= v
.bool_instance
(true)
3086 v
.write_attribute
(guard
, arguments
.first
, true_v
)
3090 res
= v
.read_attribute
(self.mpropdef
.mproperty
, arguments
.first
)
3092 v
.assign
(v
.frame
.returnvar
.as(not null), res
)
3093 else if mpropdef
== mwritepropdef
then
3094 assert arguments
.length
== 2
3095 v
.write_attribute
(self.mpropdef
.mproperty
, arguments
.first
, arguments
[1])
3097 var ret
= self.mtype
3098 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3100 v
.write_attribute
(self.mlazypropdef
.mproperty
, arguments
.first
, v
.bool_instance
(true))
3108 fun init_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3110 if has_value
and not is_lazy
and not n_expr
isa ANullExpr then evaluate_expr
(v
, recv
)
3113 # Evaluate, store and return the default value of the attribute
3114 private fun evaluate_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable): RuntimeVariable
3116 var oldnode
= v
.current_node
3117 v
.current_node
= self
3118 var old_frame
= v
.frame
3119 var frame
= new StaticFrame(v
, self.mreadpropdef
.as(not null), recv
.mcasttype
.undecorate
.as(MClassType), [recv
])
3123 var mtype
= self.mtype
3124 assert mtype
!= null
3126 var nexpr
= self.n_expr
3127 var nblock
= self.n_block
3128 if nexpr
!= null then
3129 value
= v
.expr
(nexpr
, mtype
)
3130 else if nblock
!= null then
3131 value
= v
.new_var
(mtype
)
3132 frame
.returnvar
= value
3133 frame
.returnlabel
= v
.get_name
("RET_LABEL")
3136 v
.add
("{frame.returnlabel.as(not null)}:(void)0;")
3142 v
.write_attribute
(self.mpropdef
.mproperty
, recv
, value
)
3145 v
.current_node
= oldnode
3150 fun check_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3152 var nexpr
= self.n_expr
3153 if nexpr
!= null then return
3155 var oldnode
= v
.current_node
3156 v
.current_node
= self
3157 var old_frame
= v
.frame
3158 var frame
= new StaticFrame(v
, self.mpropdef
.as(not null), recv
.mtype
.as(MClassType), [recv
])
3160 # Force read to check the initialization
3161 v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3163 v
.current_node
= oldnode
3167 redef class AClassdef
3168 private fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
3170 if mpropdef
.mproperty
.is_root_init
then
3171 assert arguments
.length
== 1
3172 if not mpropdef
.is_intro
then
3173 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
3176 else if mclassdef
.auto_init
== mpropdef
then
3177 var recv
= arguments
.first
3178 var initializers
= mpropdef
.initializers
3180 if not initializers
.is_empty
then
3183 for p
in initializers
do
3184 if p
isa MMethod then
3186 for x
in p
.intro
.msignature
.mparameters
do
3187 args
.add arguments
[i
]
3191 if p
.intro
.is_calling_init
then no_init
= true
3192 else if p
isa MAttribute then
3193 v
.write_attribute
(p
, recv
, arguments
[i
])
3197 assert i
== arguments
.length
3200 if not no_init
then v
.send
(mclass
.the_root_init_mmethod
.as(not null), [recv
])
3209 # Try to compile self as an expression
3210 # Do not call this method directly, use `v.expr` instead
3211 private fun expr
(v
: AbstractCompilerVisitor): nullable RuntimeVariable
3213 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\
");")
3214 var mtype
= self.mtype
3215 if mtype
== null then
3218 var res
= v
.new_var
(mtype
)
3219 v
.add
("/* {res} = NOT YET {class_name} */")
3224 # Try to compile self as a statement
3225 # Do not call this method directly, use `v.stmt` instead
3226 private fun stmt
(v
: AbstractCompilerVisitor)
3232 redef class ABlockExpr
3235 for e
in self.n_expr
do v
.stmt
(e
)
3239 var last
= self.n_expr
.last
3240 for e
in self.n_expr
do
3241 if e
== last
then break
3244 return v
.expr
(last
, null)
3248 redef class AVardeclExpr
3251 var variable
= self.variable
.as(not null)
3252 var ne
= self.n_expr
3254 var i
= v
.expr
(ne
, variable
.declared_type
)
3255 v
.assign
(v
.variable
(variable
), i
)
3260 redef class AVarExpr
3263 var res
= v
.variable
(self.variable
.as(not null))
3264 var mtype
= self.mtype
.as(not null)
3265 return v
.autoadapt
(res
, mtype
)
3269 redef class AVarAssignExpr
3272 var variable
= self.variable
.as(not null)
3273 var i
= v
.expr
(self.n_value
, variable
.declared_type
)
3274 v
.assign
(v
.variable
(variable
), i
)
3279 redef class AVarReassignExpr
3282 var variable
= self.variable
.as(not null)
3283 var vari
= v
.variable
(variable
)
3284 var value
= v
.expr
(self.n_value
, variable
.declared_type
)
3285 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [vari
, value
])
3287 v
.assign
(v
.variable
(variable
), res
)
3291 redef class ASelfExpr
3292 redef fun expr
(v
) do return v
.frame
.arguments
.first
3295 redef class AImplicitSelfExpr
3296 redef fun expr
(v
) do
3297 if not is_sys
then return super
3298 return v
.new_expr
("glob_sys", mtype
.as(not null))
3302 redef class AEscapeExpr
3303 redef fun stmt
(v
) do v
.add
("goto BREAK_{v.escapemark_name(self.escapemark)};")
3306 redef class AReturnExpr
3309 var nexpr
= self.n_expr
3310 if nexpr
!= null then
3311 var returnvar
= v
.frame
.returnvar
.as(not null)
3312 var i
= v
.expr
(nexpr
, returnvar
.mtype
)
3313 v
.assign
(returnvar
, i
)
3315 v
.add
("goto {v.frame.returnlabel.as(not null)};")
3319 redef class AAbortExpr
3320 redef fun stmt
(v
) do v
.add_abort
("Aborted")
3326 var cond
= v
.expr_bool
(self.n_expr
)
3327 v
.add
("if ({cond})\{")
3336 var res
= v
.new_var
(self.mtype
.as(not null))
3337 var cond
= v
.expr_bool
(self.n_expr
)
3338 v
.add
("if ({cond})\{")
3339 v
.assign
(res
, v
.expr
(self.n_then
.as(not null), null))
3341 v
.assign
(res
, v
.expr
(self.n_else
.as(not null), null))
3347 redef class AIfexprExpr
3350 var res
= v
.new_var
(self.mtype
.as(not null))
3351 var cond
= v
.expr_bool
(self.n_expr
)
3352 v
.add
("if ({cond})\{")
3353 v
.assign
(res
, v
.expr
(self.n_then
, null))
3355 v
.assign
(res
, v
.expr
(self.n_else
, null))
3364 v
.stmt
(self.n_block
)
3365 v
.add_escape_label
(break_mark
)
3369 redef class AWhileExpr
3373 var cond
= v
.expr_bool
(self.n_expr
)
3374 v
.add
("if (!{cond}) break;")
3375 v
.stmt
(self.n_block
)
3376 v
.add_escape_label
(continue_mark
)
3378 v
.add_escape_label
(break_mark
)
3382 redef class ALoopExpr
3386 v
.stmt
(self.n_block
)
3387 v
.add_escape_label
(continue_mark
)
3389 v
.add_escape_label
(break_mark
)
3393 redef class AForExpr
3396 for g
in n_groups
do
3397 var cl
= v
.expr
(g
.n_expr
, null)
3398 var it_meth
= g
.method_iterator
3399 assert it_meth
!= null
3400 var it
= v
.compile_callsite
(it_meth
, [cl
])
3405 for g
in n_groups
do
3407 var isok_meth
= g
.method_is_ok
3408 assert isok_meth
!= null
3409 var ok
= v
.compile_callsite
(isok_meth
, [it
])
3411 v
.add
("if(!{ok}) break;")
3412 if g
.variables
.length
== 1 then
3413 var item_meth
= g
.method_item
3414 assert item_meth
!= null
3415 var i
= v
.compile_callsite
(item_meth
, [it
])
3417 v
.assign
(v
.variable
(g
.variables
.first
), i
)
3418 else if g
.variables
.length
== 2 then
3419 var key_meth
= g
.method_key
3420 assert key_meth
!= null
3421 var i
= v
.compile_callsite
(key_meth
, [it
])
3423 v
.assign
(v
.variable
(g
.variables
[0]), i
)
3424 var item_meth
= g
.method_item
3425 assert item_meth
!= null
3426 i
= v
.compile_callsite
(item_meth
, [it
])
3428 v
.assign
(v
.variable
(g
.variables
[1]), i
)
3433 v
.stmt
(self.n_block
)
3434 v
.add_escape_label
(continue_mark
)
3435 for g
in n_groups
do
3436 var next_meth
= g
.method_next
3437 assert next_meth
!= null
3438 v
.compile_callsite
(next_meth
, [g
.it
])
3441 v
.add_escape_label
(break_mark
)
3443 for g
in n_groups
do
3444 var method_finish
= g
.method_finish
3445 if method_finish
!= null then
3446 # TODO: Find a way to call this also in long escape (e.g. return)
3447 v
.compile_callsite
(method_finish
, [g
.it
])
3453 redef class AForGroup
3454 # C variable representing the iterator
3455 private var it
: RuntimeVariable is noinit
3458 redef class AAssertExpr
3461 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return
3463 var cond
= v
.expr_bool
(self.n_expr
)
3464 v
.add
("if (unlikely(!{cond})) \{")
3468 v
.add_abort
("Assert '{nid.text}' failed")
3470 v
.add_abort
("Assert failed")
3479 var res
= v
.new_var
(self.mtype
.as(not null))
3480 var i1
= v
.expr_bool
(self.n_expr
)
3481 v
.add
("if ({i1}) \{")
3484 var i2
= v
.expr_bool
(self.n_expr2
)
3485 v
.add
("{res} = {i2};")
3491 redef class AImpliesExpr
3494 var res
= v
.new_var
(self.mtype
.as(not null))
3495 var i1
= v
.expr_bool
(self.n_expr
)
3496 v
.add
("if (!{i1}) \{")
3499 var i2
= v
.expr_bool
(self.n_expr2
)
3500 v
.add
("{res} = {i2};")
3506 redef class AAndExpr
3509 var res
= v
.new_var
(self.mtype
.as(not null))
3510 var i1
= v
.expr_bool
(self.n_expr
)
3511 v
.add
("if (!{i1}) \{")
3514 var i2
= v
.expr_bool
(self.n_expr2
)
3515 v
.add
("{res} = {i2};")
3521 redef class ANotExpr
3524 var cond
= v
.expr_bool
(self.n_expr
)
3525 return v
.new_expr
("!{cond}", self.mtype
.as(not null))
3529 redef class AOrElseExpr
3532 var res
= v
.new_var
(self.mtype
.as(not null))
3533 var i1
= v
.expr
(self.n_expr
, null)
3534 v
.add
("if ({i1}!=NULL) \{")
3537 var i2
= v
.expr
(self.n_expr2
, null)
3544 redef class AIntegerExpr
3545 redef fun expr
(v
) do
3546 if value
isa Int then return v
.int_instance
(value
.as(Int))
3547 if value
isa Byte then return v
.byte_instance
(value
.as(Byte))
3548 if value
isa Int8 then return v
.int8_instance
(value
.as(Int8))
3549 if value
isa Int16 then return v
.int16_instance
(value
.as(Int16))
3550 if value
isa UInt16 then return v
.uint16_instance
(value
.as(UInt16))
3551 if value
isa Int32 then return v
.int32_instance
(value
.as(Int32))
3552 if value
isa UInt32 then return v
.uint32_instance
(value
.as(UInt32))
3553 # Should never happen
3558 redef class AFloatExpr
3559 redef fun expr
(v
) do return v
.float_instance
("{self.n_float.text}") # FIXME use value, not n_float
3562 redef class ACharExpr
3563 redef fun expr
(v
) do return v
.char_instance
(self.value
.as(not null))
3566 redef class AArrayExpr
3569 var mtype
= self.element_mtype
.as(not null)
3570 var array
= new Array[RuntimeVariable]
3571 var res
= v
.array_instance
(array
, mtype
)
3573 var old_comprehension
= v
.frame
.comprehension
3574 v
.frame
.comprehension
= res
3575 for nexpr
in self.n_exprs
do
3578 v
.frame
.comprehension
= old_comprehension
3584 redef class AStringFormExpr
3585 redef fun expr
(v
) do return v
.string_instance
(self.value
.as(not null))
3588 redef class ASuperstringExpr
3591 var type_string
= mtype
.as(not null)
3593 # Collect elements of the superstring
3594 var array
= new Array[AExpr]
3595 for ne
in self.n_exprs
do
3596 # Drop literal empty string.
3597 # They appears in things like "{a}" that is ["", a, ""]
3598 if ne
isa AStringFormExpr and ne
.value
== "" then continue # skip empty sub-strings
3602 # Store the allocated native array in a static variable
3604 var varonce
= v
.get_name
("varonce")
3605 v
.add
("if (unlikely({varonce}==NULL)) \{")
3607 # The native array that will contains the elements to_s-ized.
3608 # For fast concatenation.
3609 var a
= v
.native_array_instance
(type_string
, v
.int_instance
(array
.length
))
3611 v
.add_decl
("static {a.mtype.ctype} {varonce};")
3613 # Pre-fill the array with the literal string parts.
3614 # So they do not need to be filled again when reused
3615 for i
in [0..array
.length
[ do
3617 if not ne
isa AStringFormExpr then continue
3618 var e
= v
.expr
(ne
, null)
3619 v
.native_array_set
(a
, i
, e
)
3623 # Take the native-array from the store.
3624 # The point is to prevent that some recursive execution use (and corrupt) the same native array
3625 # WARNING: not thread safe! (FIXME?)
3626 v
.add
("{a} = {varonce};")
3627 v
.add
("{varonce} = NULL;")
3630 # Stringify the elements and put them in the native array
3631 var to_s_method
= v
.get_property
("to_s", v
.object_type
)
3632 for i
in [0..array
.length
[ do
3634 if ne
isa AStringFormExpr then continue
3635 var e
= v
.expr
(ne
, null)
3636 # Skip the `to_s` if the element is already a String
3637 if not e
.mcasttype
.is_subtype
(v
.compiler
.mainmodule
, null, type_string
) then
3638 e
= v
.send
(to_s_method
, [e
]).as(not null)
3640 v
.native_array_set
(a
, i
, e
)
3643 # Fast join the native string to get the result
3644 var res
= v
.send
(v
.get_property
("native_to_s", a
.mtype
), [a
])
3646 # We finish to work with the native array,
3647 # so store it so that it can be reused
3648 v
.add
("{varonce} = {a};")
3653 redef class ACrangeExpr
3656 var i1
= v
.expr
(self.n_expr
, null)
3657 var i2
= v
.expr
(self.n_expr2
, null)
3658 var mtype
= self.mtype
.as(MClassType)
3659 var res
= v
.init_instance
(mtype
)
3660 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3665 redef class AOrangeExpr
3668 var i1
= v
.expr
(self.n_expr
, null)
3669 var i2
= v
.expr
(self.n_expr2
, null)
3670 var mtype
= self.mtype
.as(MClassType)
3671 var res
= v
.init_instance
(mtype
)
3672 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3677 redef class ATrueExpr
3678 redef fun expr
(v
) do return v
.bool_instance
(true)
3681 redef class AFalseExpr
3682 redef fun expr
(v
) do return v
.bool_instance
(false)
3685 redef class ANullExpr
3686 redef fun expr
(v
) do return v
.null_instance
3689 redef class AIsaExpr
3692 var i
= v
.expr
(self.n_expr
, null)
3693 var cast_type
= self.cast_type
3694 if cast_type
== null then return null # no-no on broken node
3695 return v
.type_test
(i
, cast_type
, "isa")
3699 redef class AAsCastExpr
3702 var i
= v
.expr
(self.n_expr
, null)
3703 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3705 v
.add_cast
(i
, self.mtype
.as(not null), "as")
3710 redef class AAsNotnullExpr
3713 var i
= v
.expr
(self.n_expr
, null)
3714 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3716 if i
.mtype
.is_c_primitive
then return i
3718 v
.add
("if (unlikely({i} == NULL)) \{")
3719 v
.add_abort
("Cast failed")
3725 redef class AParExpr
3726 redef fun expr
(v
) do return v
.expr
(self.n_expr
, null)
3729 redef class AOnceExpr
3732 var mtype
= self.mtype
.as(not null)
3733 var name
= v
.get_name
("varonce")
3734 var guard
= v
.get_name
(name
+ "_guard")
3735 v
.add_decl
("static {mtype.ctype} {name};")
3736 v
.add_decl
("static int {guard};")
3737 var res
= v
.new_var
(mtype
)
3738 v
.add
("if (likely({guard})) \{")
3739 v
.add
("{res} = {name};")
3741 var i
= v
.expr
(self.n_expr
, mtype
)
3742 v
.add
("{res} = {i};")
3743 v
.add
("{name} = {res};")
3744 v
.add
("{guard} = 1;")
3750 redef class ASendExpr
3753 var recv
= v
.expr
(self.n_expr
, null)
3754 var callsite
= self.callsite
.as(not null)
3755 if callsite
.is_broken
then return null
3756 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3757 return v
.compile_callsite
(callsite
, args
)
3761 redef class ASendReassignFormExpr
3764 var recv
= v
.expr
(self.n_expr
, null)
3765 var callsite
= self.callsite
.as(not null)
3766 if callsite
.is_broken
then return
3767 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3769 var value
= v
.expr
(self.n_value
, null)
3771 var left
= v
.compile_callsite
(callsite
, args
)
3774 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [left
, value
])
3778 v
.compile_callsite
(self.write_callsite
.as(not null), args
)
3782 redef class ASuperExpr
3785 var frame
= v
.frame
.as(not null)
3786 var recv
= frame
.arguments
.first
3788 var callsite
= self.callsite
3789 if callsite
!= null then
3790 if callsite
.is_broken
then return null
3793 if self.n_args
.n_exprs
.is_empty
then
3794 # Add automatic arguments for the super init call
3796 for i
in [0..callsite
.msignature
.arity
[ do
3797 args
.add
(frame
.arguments
[i
+1])
3800 args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3804 var res
= v
.compile_callsite
(callsite
, args
)
3808 var mpropdef
= self.mpropdef
.as(not null)
3811 if self.n_args
.n_exprs
.is_empty
then
3812 args
= frame
.arguments
3814 args
= v
.varargize
(mpropdef
, signaturemap
, recv
, self.n_args
.n_exprs
)
3817 # Standard call-next-method
3818 return v
.supercall
(mpropdef
, recv
.mtype
.as(MClassType), args
)
3822 redef class ANewExpr
3825 var mtype
= self.recvtype
3826 assert mtype
!= null
3828 if mtype
.mclass
.name
== "NativeArray" then
3829 assert self.n_args
.n_exprs
.length
== 1
3830 var l
= v
.expr
(self.n_args
.n_exprs
.first
, null)
3831 assert mtype
isa MGenericType
3832 var elttype
= mtype
.arguments
.first
3833 return v
.native_array_instance
(elttype
, l
)
3836 var recv
= v
.init_instance_or_extern
(mtype
)
3838 var callsite
= self.callsite
3839 if callsite
== null then return recv
3840 if callsite
.is_broken
then return null
3842 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3843 var res2
= v
.compile_callsite
(callsite
, args
)
3844 if res2
!= null then
3845 #self.debug("got {res2} from {mproperty}. drop {recv}")
3852 redef class AAttrExpr
3855 var recv
= v
.expr
(self.n_expr
, null)
3856 var mproperty
= self.mproperty
.as(not null)
3857 return v
.read_attribute
(mproperty
, recv
)
3861 redef class AAttrAssignExpr
3864 var recv
= v
.expr
(self.n_expr
, null)
3865 var i
= v
.expr
(self.n_value
, null)
3866 var mproperty
= self.mproperty
.as(not null)
3867 v
.write_attribute
(mproperty
, recv
, i
)
3872 redef class AAttrReassignExpr
3875 var recv
= v
.expr
(self.n_expr
, null)
3876 var value
= v
.expr
(self.n_value
, null)
3877 var mproperty
= self.mproperty
.as(not null)
3878 var attr
= v
.read_attribute
(mproperty
, recv
)
3879 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [attr
, value
])
3881 v
.write_attribute
(mproperty
, recv
, res
)
3885 redef class AIssetAttrExpr
3888 var recv
= v
.expr
(self.n_expr
, null)
3889 var mproperty
= self.mproperty
.as(not null)
3890 return v
.isset_attribute
(mproperty
, recv
)
3894 redef class AVarargExpr
3897 return v
.expr
(self.n_expr
, null)
3901 redef class ANamedargExpr
3904 return v
.expr
(self.n_expr
, null)
3908 redef class ADebugTypeExpr
3917 redef class Array[E
]
3918 # Return a new `Array` with the elements only contened in self and not in `o`
3919 fun -(o
: Array[E
]): Array[E
] do
3920 var res
= new Array[E
]
3921 for e
in self do if not o
.has
(e
) then res
.add
(e
)
3927 # All `MProperty` associated to all `MClassDef` of `mclass`
3928 fun properties
(mclass
: MClass): Set[MProperty] do
3929 if not self.properties_cache
.has_key
(mclass
) then
3930 var properties
= new HashSet[MProperty]
3931 var parents
= new Array[MClass]
3932 if self.flatten_mclass_hierarchy
.has
(mclass
) then
3933 parents
.add_all
(mclass
.in_hierarchy
(self).direct_greaters
)
3935 for parent
in parents
do
3936 properties
.add_all
(self.properties
(parent
))
3938 for mclassdef
in mclass
.mclassdefs
do
3939 if not self.in_importation
<= mclassdef
.mmodule
then continue
3940 for mprop
in mclassdef
.intro_mproperties
do
3941 properties
.add
(mprop
)
3944 self.properties_cache
[mclass
] = properties
3946 return properties_cache
[mclass
]
3948 private var properties_cache
: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
3950 # Write FFI and nitni results to file
3951 fun finalize_ffi
(c
: AbstractCompiler) do end
3953 # Give requided addinional system libraries (as given to LD_LIBS)
3954 # Note: can return null instead of an empty set
3955 fun collect_linker_libs
: nullable Array[String] do return null
3958 # Create a tool context to handle options and paths
3959 var toolcontext
= new ToolContext
3961 toolcontext
.tooldescription
= "Usage: nitc [OPTION]... file.nit...\nCompiles Nit programs."
3963 # We do not add other options, so process them now!
3964 toolcontext
.process_options
(args
)
3966 # We need a model to collect stufs
3967 var model
= new Model
3968 # An a model builder to parse files
3969 var modelbuilder
= new ModelBuilder(model
, toolcontext
)
3971 var arguments
= toolcontext
.option_context
.rest
3972 if arguments
.length
> 1 and toolcontext
.opt_output
.value
!= null then
3973 print
"Option Error: --output needs a single source file. Do you prefer --dir?"
3977 # Here we load an process all modules passed on the command line
3978 var mmodules
= modelbuilder
.parse
(arguments
)
3980 if mmodules
.is_empty
then toolcontext
.quit
3982 modelbuilder
.run_phases
3984 for mmodule
in mmodules
do
3985 toolcontext
.info
("*** PROCESS {mmodule} ***", 1)
3987 toolcontext
.run_global_phases
(ms
)