1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2012 Jean Privat <jean@pryen.org>
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
18 module abstract_compiler
24 private import annotation
28 # Add compiling options
29 redef class ToolContext
31 var opt_output
= new OptionString("Filename of the generated executable", "-o", "--output")
33 var opt_dir
= new OptionString("Output directory", "--dir")
35 var opt_no_cc
= new OptionBool("Do not invoke the C compiler", "--no-cc")
37 var opt_no_main
= new OptionBool("Do not generate main entry point", "--no-main")
39 var opt_make_flags
= new OptionString("Additional options to the `make` command", "--make-flags")
41 var opt_max_c_lines
= new OptionInt("Maximum number of lines in generated C files. Use 0 for unlimited", 10000, "--max-c-lines")
43 var opt_group_c_files
= new OptionBool("Group all generated code in the same series of files", "--group-c-files")
45 var opt_compile_dir
= new OptionString("Directory used to generate temporary files", "--compile-dir")
47 var opt_hardening
= new OptionBool("Generate contracts in the C code against bugs in the compiler", "--hardening")
48 # --no-check-covariance
49 var opt_no_check_covariance
= new OptionBool("Disable type tests of covariant parameters (dangerous)", "--no-check-covariance")
50 # --no-check-attr-isset
51 var opt_no_check_attr_isset
= new OptionBool("Disable isset tests before each attribute access (dangerous)", "--no-check-attr-isset")
53 var opt_no_check_assert
= new OptionBool("Disable the evaluation of explicit `assert` and `as` (dangerous)", "--no-check-assert")
55 var opt_no_check_autocast
= new OptionBool("Disable implicit casts on unsafe expression usage (dangerous)", "--no-check-autocast")
57 var opt_no_check_null
= new OptionBool("Disable tests of null receiver (dangerous)", "--no-check-null")
59 var opt_no_check_all
= new OptionBool("Disable all tests (dangerous)", "--no-check-all")
60 # --typing-test-metrics
61 var opt_typing_test_metrics
= new OptionBool("Enable static and dynamic count of all type tests", "--typing-test-metrics")
62 # --invocation-metrics
63 var opt_invocation_metrics
= new OptionBool("Enable static and dynamic count of all method invocations", "--invocation-metrics")
64 # --isset-checks-metrics
65 var opt_isset_checks_metrics
= new OptionBool("Enable static and dynamic count of isset checks before attributes access", "--isset-checks-metrics")
67 var opt_no_stacktrace
= new OptionBool("Disable the generation of stack traces", "--no-stacktrace")
69 var opt_no_gcc_directive
= new OptionArray("Disable advanced gcc directives for optimization", "--no-gcc-directive")
71 var opt_release
= new OptionBool("Compile in release mode and finalize application", "--release")
73 var opt_debug
= new OptionBool("Compile in debug mode (no C-side optimization)", "-g", "--debug")
78 self.option_context
.add_option
(self.opt_output
, self.opt_dir
, self.opt_no_cc
, self.opt_no_main
, self.opt_make_flags
, self.opt_compile_dir
, self.opt_hardening
)
79 self.option_context
.add_option
(self.opt_no_check_covariance
, self.opt_no_check_attr_isset
, self.opt_no_check_assert
, self.opt_no_check_autocast
, self.opt_no_check_null
, self.opt_no_check_all
)
80 self.option_context
.add_option
(self.opt_typing_test_metrics
, self.opt_invocation_metrics
, self.opt_isset_checks_metrics
)
81 self.option_context
.add_option
(self.opt_no_stacktrace
)
82 self.option_context
.add_option
(self.opt_no_gcc_directive
)
83 self.option_context
.add_option
(self.opt_release
)
84 self.option_context
.add_option
(self.opt_max_c_lines
, self.opt_group_c_files
)
85 self.option_context
.add_option
(self.opt_debug
)
87 opt_no_main
.hidden
= true
90 redef fun process_options
(args
)
94 if opt_output
.value
!= null and opt_dir
.value
!= null then
95 print
"Option Error: cannot use both --dir and --output"
99 if opt_no_check_all
.value
then
100 opt_no_check_covariance
.value
= true
101 opt_no_check_attr_isset
.value
= true
102 opt_no_check_assert
.value
= true
103 opt_no_check_autocast
.value
= true
104 opt_no_check_null
.value
= true
109 redef class ModelBuilder
110 # Simple indirection to `Toolchain::write_and_make`
111 protected fun write_and_make
(compiler
: AbstractCompiler)
113 var platform
= compiler
.target_platform
114 var toolchain
= platform
.toolchain
(toolcontext
, compiler
)
115 compiler
.toolchain
= toolchain
116 toolchain
.write_and_make
121 # The specific tool-chain associated to the platform
122 fun toolchain
(toolcontext
: ToolContext, compiler
: AbstractCompiler): Toolchain
124 return new MakefileToolchain(toolcontext
, compiler
)
128 # Build toolchain for a specific target program, varies per `Platform`
132 var toolcontext
: ToolContext
134 # Compiler of the target program
135 var compiler
: AbstractCompiler
137 # Directory where to generate all files
139 # The option `--compile_dir` change this directory.
140 fun root_compile_dir
: String
142 var compile_dir
= toolcontext
.opt_compile_dir
.value
143 if compile_dir
== null then compile_dir
= "nit_compile"
147 # Directory where to generate all C files
149 # By default it is `root_compile_dir` but some platform may require that it is a subdirectory.
150 fun compile_dir
: String do return root_compile_dir
152 # Write all C files and compile them
153 fun write_and_make
is abstract
156 # Default toolchain using a Makefile
157 class MakefileToolchain
160 redef fun write_and_make
162 var debug
= toolcontext
.opt_debug
.value
163 var compile_dir
= compile_dir
165 # Remove the compilation directory unless explicitly set
166 var auto_remove
= toolcontext
.opt_compile_dir
.value
== null
167 # If debug flag is set, do not remove sources
168 if debug
then auto_remove
= false
170 # Generate the .h and .c files
171 # A single C file regroups many compiled rumtime functions
172 # Note that we do not try to be clever an a small change in a Nit source file may change the content of all the generated .c files
174 self.toolcontext
.info
("*** WRITING C ***", 1)
176 root_compile_dir
.mkdir
179 var cfiles
= new Array[String]
180 write_files
(compile_dir
, cfiles
)
182 # Generate the Makefile
184 write_makefile
(compile_dir
, cfiles
)
187 self.toolcontext
.info
("*** END WRITING C: {time1-time0} ***", 2)
189 # Execute the Makefile
191 if self.toolcontext
.opt_no_cc
.value
then return
194 self.toolcontext
.info
("*** COMPILING C ***", 1)
196 compile_c_code
(compile_dir
)
199 sys
.system
("rm -r -- '{root_compile_dir.escape_to_sh}/'")
203 self.toolcontext
.info
("*** END COMPILING C: {time1-time0} ***", 2)
206 # Write all source files to the `compile_dir`
207 fun write_files
(compile_dir
: String, cfiles
: Array[String])
209 var platform
= compiler
.target_platform
210 if platform
.supports_libunwind
then compiler
.build_c_to_nit_bindings
211 var cc_opt_with_libgc
= "-DWITH_LIBGC"
212 if not platform
.supports_libgc
then cc_opt_with_libgc
= ""
214 # Add gc_choser.h to aditionnal bodies
215 var gc_chooser
= new ExternCFile("gc_chooser.c", cc_opt_with_libgc
)
216 if cc_opt_with_libgc
!= "" then gc_chooser
.pkgconfigs
.add
"bdw-gc"
217 compiler
.extern_bodies
.add
(gc_chooser
)
218 var clib
= toolcontext
.nit_dir
/ "clib"
219 compiler
.files_to_copy
.add
"{clib}/gc_chooser.c"
220 compiler
.files_to_copy
.add
"{clib}/gc_chooser.h"
223 for m
in compiler
.mainmodule
.in_importation
.greaters
do
224 compiler
.finalize_ffi_for_module
(m
)
227 # Copy original .[ch] files to compile_dir
228 for src
in compiler
.files_to_copy
do
229 var basename
= src
.basename
230 var dst
= "{compile_dir}/{basename}"
234 var hfilename
= compiler
.header
.file
.name
+ ".h"
235 var hfilepath
= "{compile_dir}/{hfilename}"
236 var h
= new FileWriter.open
(hfilepath
)
237 for l
in compiler
.header
.decl_lines
do
241 for l
in compiler
.header
.lines
do
247 var max_c_lines
= toolcontext
.opt_max_c_lines
.value
248 for f
in compiler
.files
do
251 var file
: nullable FileWriter = null
252 for vis
in f
.writers
do
253 if vis
== compiler
.header
then continue
254 var total_lines
= vis
.lines
.length
+ vis
.decl_lines
.length
255 if total_lines
== 0 then continue
257 if file
== null or (count
> max_c_lines
and max_c_lines
> 0) then
259 if file
!= null then file
.close
260 var cfilename
= "{f.name}.{i}.c"
261 var cfilepath
= "{compile_dir}/{cfilename}"
262 self.toolcontext
.info
("new C source files to compile: {cfilepath}", 3)
263 cfiles
.add
(cfilename
)
264 file
= new FileWriter.open
(cfilepath
)
265 file
.write
"#include \"{f.name}.0.h\
"\n"
268 for l
in vis
.decl_lines
do
272 for l
in vis
.lines
do
277 if file
== null then continue
280 var cfilename
= "{f.name}.0.h"
281 var cfilepath
= "{compile_dir}/{cfilename}"
282 var hfile
: nullable FileWriter = null
283 hfile
= new FileWriter.open
(cfilepath
)
284 hfile
.write
"#include \"{hfilename}\
"\n"
285 for key
in f
.required_declarations
do
286 if not compiler
.provided_declarations
.has_key
(key
) then
287 var node
= compiler
.requirers_of_declarations
.get_or_null
(key
)
289 node
.debug
"No provided declaration for {key}"
291 print
"No provided declaration for {key}"
295 hfile
.write compiler
.provided_declarations
[key
]
301 self.toolcontext
.info
("Total C source files to compile: {cfiles.length}", 2)
304 # Get the name of the Makefile to use
305 fun makefile_name
: String do return "{compiler.mainmodule.c_name}.mk"
307 # Get the default name of the executable to produce
308 fun default_outname
: String
310 var mainmodule
= compiler
.mainmodule
.first_real_mmodule
311 return mainmodule
.name
314 # Combine options and platform informations to get the final path of the outfile
315 fun outfile
(mainmodule
: MModule): String
317 var res
= self.toolcontext
.opt_output
.value
318 if res
!= null then return res
319 res
= default_outname
320 var dir
= self.toolcontext
.opt_dir
.value
321 if dir
!= null then return dir
.join_path
(res
)
326 fun write_makefile
(compile_dir
: String, cfiles
: Array[String])
328 var mainmodule
= compiler
.mainmodule
329 var platform
= compiler
.target_platform
331 var outname
= outfile
(mainmodule
)
333 var real_outpath
= compile_dir
.relpath
(outname
)
334 var outpath
= real_outpath
.escape_to_mk
335 if outpath
!= real_outpath
then
336 # If the name is crazy and need escaping, we will do an indirection
337 # 1. generate the binary in the nit_compile dir under an escaped name
338 # 2. copy the binary at the right place in the `all` goal.
339 outpath
= mainmodule
.c_name
341 var makename
= makefile_name
342 var makepath
= "{compile_dir}/{makename}"
343 var makefile
= new FileWriter.open
(makepath
)
345 var linker_options
= new HashSet[String]
346 for m
in mainmodule
.in_importation
.greaters
do
347 var libs
= m
.collect_linker_libs
348 if libs
!= null then linker_options
.add_all
(libs
)
350 var debug
= toolcontext
.opt_debug
.value
352 makefile
.write
("CC = ccache cc\nCXX = ccache c++\nCFLAGS = -g{ if not debug then " -O2 " else " "}-Wno-unused-value -Wno-switch -Wno-attributes -Wno-trigraphs\nCINCL =\nLDFLAGS ?= \nLDLIBS ?= -lm {linker_options.join(" ")}\n\n")
354 makefile
.write
"\n# SPECIAL CONFIGURATION FLAGS\n"
355 if platform
.supports_libunwind
then
356 if toolcontext
.opt_no_stacktrace
.value
then
357 makefile
.write
"NO_STACKTRACE=True"
359 makefile
.write
"NO_STACKTRACE= # Set to `True` to enable"
363 # Dynamic adaptations
364 # While `platform` enable complex toolchains, they are statically applied
365 # For a dynamic adaptsation of the compilation, the generated Makefile should check and adapt things itself
366 makefile
.write
"\n\n"
368 # Check and adapt the targeted system
369 makefile
.write
("uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')\n")
371 # Check and adapt for the compiler used
372 # clang need an additionnal `-Qunused-arguments`
373 makefile
.write
("clang_check := $(shell sh -c '$(CC) -v 2>&1 | grep -q clang; echo $$?')\nifeq ($(clang_check), 0)\n\tCFLAGS += -Qunused-arguments\nendif\n")
375 if platform
.supports_libunwind
then
377 ifneq ($(NO_STACKTRACE), True)
378 # Check and include lib-unwind in a portable way
379 ifneq ($(uname_S),Darwin)
380 # already included on macosx, but need to get the correct flags in other supported platforms.
381 ifeq ($(shell pkg-config --exists 'libunwind'; echo $$?), 0)
382 LDLIBS += `pkg-config --libs libunwind`
383 CFLAGS += `pkg-config --cflags libunwind`
385 $(warning "[_] stack-traces disabled. Please install libunwind-dev.")
386 CFLAGS += -D NO_STACKTRACE
390 # Stacktraces disabled
391 CFLAGS += -D NO_STACKTRACE
396 makefile
.write
("CFLAGS += -D NO_STACKTRACE\n\n")
400 # Special configuration for Darwin
401 ifeq ($(uname_S),Darwin)
402 # Remove POSIX flag -lrt
403 LDLIBS := $(filter-out -lrt,$(LDLIBS))
408 makefile
.write
("all: {outpath}\n")
409 if outpath
!= real_outpath
then
410 makefile
.write
("\tcp -- {outpath.escape_to_sh} {real_outpath.escape_to_sh.replace("$","$$")}")
414 var ofiles
= new Array[String]
415 var dep_rules
= new Array[String]
416 # Compile each generated file
418 var o
= f
.strip_extension
(".c") + ".o"
419 makefile
.write
("{o}: {f}\n\t$(CC) $(CFLAGS) $(CINCL) -c -o {o} {f}\n\n")
424 # Generate linker script, if any
425 if not compiler
.linker_script
.is_empty
then
426 var linker_script_path
= "{compile_dir}/linker_script"
427 ofiles
.add
"linker_script"
428 var f
= new FileWriter.open
(linker_script_path
)
429 for l
in compiler
.linker_script
do
436 var java_files
= new Array[ExternFile]
438 var pkgconfigs
= new Array[String]
439 for f
in compiler
.extern_bodies
do
440 pkgconfigs
.add_all f
.pkgconfigs
443 if not pkgconfigs
.is_empty
then
445 # does pkg-config exists?
446 ifneq ($(shell which pkg-config >/dev/null; echo $$?), 0)
447 $(error "Command `pkg-config` not found. Please install it")
450 for p
in pkgconfigs
do
452 # Check for library {{{p}}}
453 ifneq ($(shell pkg-config --exists '{{{p}}}'; echo $$?), 0)
454 $(error "pkg-config: package {{{p}}} is not found.")
460 # Compile each required extern body into a specific .o
461 for f
in compiler
.extern_bodies
do
462 var o
= f
.makefile_rule_name
463 var ff
= f
.filename
.basename
464 makefile
.write
("{o}: {ff}\n")
465 makefile
.write
("\t{f.makefile_rule_content}\n\n")
466 dep_rules
.add
(f
.makefile_rule_name
)
468 if f
.compiles_to_o_file
then ofiles
.add
(o
)
469 if f
.add_to_jar
then java_files
.add
(f
)
472 if not java_files
.is_empty
then
473 var jar_file
= "{outpath}.jar"
475 var class_files_array
= new Array[String]
476 for f
in java_files
do class_files_array
.add
(f
.makefile_rule_name
)
477 var class_files
= class_files_array
.join
(" ")
479 makefile
.write
("{jar_file}: {class_files}\n")
480 makefile
.write
("\tjar cf {jar_file} {class_files}\n\n")
481 dep_rules
.add jar_file
486 if not pkgconfigs
.is_empty
then
487 pkg
= "`pkg-config --libs {pkgconfigs.join(" ")}`"
489 makefile
.write
("{outpath}: {dep_rules.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath.escape_to_sh} {ofiles.join(" ")} $(LDLIBS) {pkg}\n\n")
491 makefile
.write
("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n")
492 if outpath
!= real_outpath
then
493 makefile
.write
("\trm -- {outpath.escape_to_sh} 2>/dev/null\n")
496 self.toolcontext
.info
("Generated makefile: {makepath}", 2)
498 makepath
.file_copy_to
"{compile_dir}/Makefile"
501 # The C code is generated, compile it to an executable
502 fun compile_c_code
(compile_dir
: String)
504 var makename
= makefile_name
506 var makeflags
= self.toolcontext
.opt_make_flags
.value
507 if makeflags
== null then makeflags
= ""
509 var command
= "make -B -C {compile_dir} -f {makename} -j 4 {makeflags}"
510 self.toolcontext
.info
(command
, 2)
513 if self.toolcontext
.verbose_level
>= 3 then
514 res
= sys
.system
("{command} 2>&1")
516 res
= sys
.system
("{command} 2>&1 >/dev/null")
519 toolcontext
.error
(null, "Compilation Error: `make` failed with error code: {res}. The command was `{command}`.")
524 # Singleton that store the knowledge about the compilation process
525 abstract class AbstractCompiler
526 type VISITOR: AbstractCompilerVisitor
528 # Table corresponding c_names to nit names (methods)
529 var names
= new HashMap[String, String]
531 # The main module of the program currently compiled
532 # Is assigned during the separate compilation
533 var mainmodule
: MModule is writable
535 # The real main module of the program
536 var realmainmodule
: MModule is noinit
538 # The modelbuilder used to know the model and the AST
539 var modelbuilder
: ModelBuilder is protected writable
541 # The associated toolchain
543 # Set by `modelbuilder.write_and_make` and permit sub-routines to access the current toolchain if required.
544 var toolchain
: Toolchain is noinit
546 # Is hardening asked? (see --hardening)
547 fun hardening
: Bool do return self.modelbuilder
.toolcontext
.opt_hardening
.value
549 # The targeted specific platform
550 var target_platform
: Platform is noinit
554 self.realmainmodule
= mainmodule
555 target_platform
= mainmodule
.target_platform
or else new Platform
558 # Do the full code generation of the program `mainmodule`
559 # It is the main method usually called after the instantiation
560 fun do_compilation
is abstract
562 # Force the creation of a new file
563 # The point is to avoid contamination between must-be-compiled-separately files
564 fun new_file
(name
: String): CodeFile
566 if modelbuilder
.toolcontext
.opt_group_c_files
.value
then
567 if self.files
.is_empty
then
568 var f
= new CodeFile(mainmodule
.c_name
)
571 return self.files
.first
573 var f
= new CodeFile(name
)
578 # The list of all associated files
579 # Used to generate .c files
580 var files
= new List[CodeFile]
582 # Initialize a visitor specific for a compiler engine
583 fun new_visitor
: VISITOR is abstract
585 # Where global declaration are stored (the main .h)
586 var header
: CodeWriter is writable, noinit
588 # Additionnal linker script for `ld`.
589 # Mainly used to do specific link-time symbol resolution
590 var linker_script
= new Array[String]
592 # Provide a declaration that can be requested (before or latter) by a visitor
593 fun provide_declaration
(key
: String, s
: String)
595 if self.provided_declarations
.has_key
(key
) then
596 assert self.provided_declarations
[key
] == s
598 self.provided_declarations
[key
] = s
601 private var provided_declarations
= new HashMap[String, String]
603 private var requirers_of_declarations
= new HashMap[String, ANode]
605 # Builds the .c and .h files to be used when generating a Stack Trace
606 # Binds the generated C function names to Nit function names
607 fun build_c_to_nit_bindings
609 var compile_dir
= toolchain
.compile_dir
611 var stream
= new FileWriter.open
("{compile_dir}/c_functions_hash.c")
612 stream
.write
("#include <string.h>\n")
613 stream
.write
("#include <stdlib.h>\n")
614 stream
.write
("#include \"c_functions_hash
.h\
"\n")
615 stream
.write
("typedef struct C_Nit_Names\{char* name; char* nit_name;\}C_Nit_Names;\n")
616 stream
.write
("const char* get_nit_name(register const char* procproc, register unsigned int len)\{\n")
617 stream
.write
("char* procname = malloc(len+1);")
618 stream
.write
("memcpy(procname, procproc, len);")
619 stream
.write
("procname[len] = '\\0';")
620 stream
.write
("static const C_Nit_Names map[{names.length}] = \{\n")
621 for i
in names
.keys
do
623 stream.write(i.escape_to_c)
624 stream.write("\
",\"")
625 stream.write(names[i].escape_to_c)
626 stream.write("\
"\},\n")
628 stream
.write
("\};\n")
629 stream
.write
("int i;")
630 stream
.write
("for(i = 0; i < {names.length}; i++)\{")
631 stream
.write
("if(strcmp(procname,map[i].name) == 0)\{")
632 stream
.write
("free(procname);")
633 stream
.write
("return map[i].nit_name;")
636 stream
.write
("free(procname);")
637 stream
.write
("return NULL;")
641 stream
= new FileWriter.open
("{compile_dir}/c_functions_hash.h")
642 stream
.write
("const char* get_nit_name(register const char* procname, register unsigned int len);\n")
645 extern_bodies
.add
(new ExternCFile("{compile_dir}/c_functions_hash.c", ""))
649 # This method call compile_header_strucs method that has to be refined
650 fun compile_header
do
651 self.header
.add_decl
("#include <stdlib.h>")
652 self.header
.add_decl
("#include <stdio.h>")
653 self.header
.add_decl
("#include <string.h>")
654 self.header
.add_decl
("#include <sys/types.h>\n")
655 self.header
.add_decl
("#include <unistd.h>\n")
656 self.header
.add_decl
("#include <stdint.h>\n")
657 self.header
.add_decl
("#ifdef __linux__")
658 self.header
.add_decl
(" #include <endian.h>")
659 self.header
.add_decl
("#endif")
660 self.header
.add_decl
("#include <inttypes.h>\n")
661 self.header
.add_decl
("#include \"gc_chooser
.h\
"")
662 self.header
.add_decl
("#ifdef __APPLE__")
663 self.header
.add_decl
(" #include <libkern/OSByteOrder.h>")
664 self.header
.add_decl
(" #define be32toh(x) OSSwapBigToHostInt32(x)")
665 self.header
.add_decl
("#endif")
666 self.header
.add_decl
("#ifdef __pnacl__")
667 self.header
.add_decl
(" #define be16toh(val) (((val) >> 8) | ((val) << 8))")
668 self.header
.add_decl
(" #define be32toh(val) ((be16toh((val) << 16) | (be16toh((val) >> 16))))")
669 self.header
.add_decl
("#endif")
670 self.header
.add_decl
("#ifdef ANDROID")
671 self.header
.add_decl
(" #ifndef be32toh")
672 self.header
.add_decl
(" #define be32toh(val) betoh32(val)")
673 self.header
.add_decl
(" #endif")
674 self.header
.add_decl
(" #include <android/log.h>")
675 self.header
.add_decl
(" #define PRINT_ERROR(...) (void)__android_log_print(ANDROID_LOG_WARN, \"Nit\
", __VA_ARGS__)")
676 self.header
.add_decl
("#else")
677 self.header
.add_decl
(" #define PRINT_ERROR(...) fprintf(stderr, __VA_ARGS__)")
678 self.header
.add_decl
("#endif")
680 compile_header_structs
681 compile_nitni_structs
683 var gccd_disable
= modelbuilder
.toolcontext
.opt_no_gcc_directive
.value
684 if gccd_disable
.has
("noreturn") or gccd_disable
.has
("all") then
685 # Signal handler function prototype
686 self.header
.add_decl
("void fatal_exit(int);")
688 self.header
.add_decl
("void fatal_exit(int) __attribute__ ((noreturn));")
691 if gccd_disable
.has
("likely") or gccd_disable
.has
("all") then
692 self.header
.add_decl
("#define likely(x) (x)")
693 self.header
.add_decl
("#define unlikely(x) (x)")
694 else if gccd_disable
.has
("correct-likely") then
695 # invert the `likely` definition
696 # Used by masochists to bench the worst case
697 self.header
.add_decl
("#define likely(x) __builtin_expect((x),0)")
698 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),1)")
700 self.header
.add_decl
("#define likely(x) __builtin_expect((x),1)")
701 self.header
.add_decl
("#define unlikely(x) __builtin_expect((x),0)")
704 # Global variable used by intern methods
705 self.header
.add_decl
("extern int glob_argc;")
706 self.header
.add_decl
("extern char **glob_argv;")
707 self.header
.add_decl
("extern val *glob_sys;")
710 # Declaration of structures for live Nit types
711 protected fun compile_header_structs
is abstract
713 # Declaration of structures for nitni undelying the FFI
714 protected fun compile_nitni_structs
716 self.header
.add_decl
"""
717 /* Native reference to Nit objects */
718 /* This structure is used to represent every Nit type in extern methods and custom C code. */
720 struct nitni_ref *next,
721 *prev; /* adjacent global references in global list */
722 int count; /* number of time this global reference has been marked */
725 /* List of global references from C code to Nit objects */
726 /* Instanciated empty at init of Nit system and filled explicitly by user in C code */
727 struct nitni_global_ref_list_t {
728 struct nitni_ref *head, *tail;
730 extern struct nitni_global_ref_list_t *nitni_global_ref_list;
732 /* Initializer of global reference list */
733 extern void nitni_global_ref_list_init();
735 /* Intern function to add a global reference to the list */
736 extern void nitni_global_ref_add( struct nitni_ref *ref );
738 /* Intern function to remove a global reference from the list */
739 extern void nitni_global_ref_remove( struct nitni_ref *ref );
741 /* Increase count on an existing global reference */
742 extern void nitni_global_ref_incr( struct nitni_ref *ref );
744 /* Decrease count on an existing global reference */
745 extern void nitni_global_ref_decr( struct nitni_ref *ref );
749 fun compile_finalizer_function
751 var finalizable_type
= mainmodule
.finalizable_type
752 if finalizable_type
== null then return
754 var finalize_meth
= mainmodule
.try_get_primitive_method
("finalize", finalizable_type
.mclass
)
756 if finalize_meth
== null then
757 modelbuilder
.toolcontext
.error
(null, "Error: the `Finalizable` class does not declare the `finalize` method.")
761 var v
= self.new_visitor
762 v
.add_decl
"void gc_finalize (void *obj, void *client_data) \{"
763 var recv
= v
.new_expr
("obj", finalizable_type
)
764 v
.send
(finalize_meth
, [recv
])
768 # Generate the main C function.
772 # * allocate the Sys object if it exists
773 # * call init if is exists
774 # * call main if it exists
775 fun compile_main_function
777 var v
= self.new_visitor
778 v
.add_decl
("#include <signal.h>")
779 var platform
= target_platform
781 var no_main
= platform
.no_main
or modelbuilder
.toolcontext
.opt_no_main
.value
783 if platform
.supports_libunwind
then
784 v
.add_decl
("#ifndef NO_STACKTRACE")
785 v
.add_decl
("#define UNW_LOCAL_ONLY")
786 v
.add_decl
("#include <libunwind.h>")
787 v
.add_decl
("#include \"c_functions_hash
.h\
"")
790 v
.add_decl
("int glob_argc;")
791 v
.add_decl
("char **glob_argv;")
792 v
.add_decl
("val *glob_sys;")
794 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
795 for tag
in count_type_test_tags
do
796 v
.add_decl
("long count_type_test_resolved_{tag};")
797 v
.add_decl
("long count_type_test_unresolved_{tag};")
798 v
.add_decl
("long count_type_test_skipped_{tag};")
799 v
.compiler
.header
.add_decl
("extern long count_type_test_resolved_{tag};")
800 v
.compiler
.header
.add_decl
("extern long count_type_test_unresolved_{tag};")
801 v
.compiler
.header
.add_decl
("extern long count_type_test_skipped_{tag};")
805 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
806 v
.add_decl
("long count_invoke_by_tables;")
807 v
.add_decl
("long count_invoke_by_direct;")
808 v
.add_decl
("long count_invoke_by_inline;")
809 v
.compiler
.header
.add_decl
("extern long count_invoke_by_tables;")
810 v
.compiler
.header
.add_decl
("extern long count_invoke_by_direct;")
811 v
.compiler
.header
.add_decl
("extern long count_invoke_by_inline;")
814 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
815 v
.add_decl
("long count_attr_reads = 0;")
816 v
.add_decl
("long count_isset_checks = 0;")
817 v
.compiler
.header
.add_decl
("extern long count_attr_reads;")
818 v
.compiler
.header
.add_decl
("extern long count_isset_checks;")
821 v
.add_decl
("static void show_backtrace(void) \{")
822 if platform
.supports_libunwind
then
823 v
.add_decl
("#ifndef NO_STACKTRACE")
824 v
.add_decl
("char* opt = getenv(\"NIT_NO_STACK\
");")
825 v
.add_decl
("unw_cursor_t cursor;")
826 v
.add_decl
("if(opt==NULL)\{")
827 v
.add_decl
("unw_context_t uc;")
828 v
.add_decl
("unw_word_t ip;")
829 v
.add_decl
("char* procname = malloc(sizeof(char) * 100);")
830 v
.add_decl
("unw_getcontext(&uc);")
831 v
.add_decl
("unw_init_local(&cursor, &uc);")
832 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
833 v
.add_decl
("PRINT_ERROR(\"-- Stack Trace ------------------------------\\n\
");")
834 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
835 v
.add_decl
("while (unw_step(&cursor) > 0) \{")
836 v
.add_decl
(" unw_get_proc_name(&cursor, procname, 100, &ip);")
837 v
.add_decl
(" const char* recv = get_nit_name(procname, strlen(procname));")
838 v
.add_decl
(" if (recv != NULL)\{")
839 v
.add_decl
(" PRINT_ERROR(\"` %s\\n\", recv);")
840 v.add_decl(" \}else\{")
841 v.add_decl(" PRINT_ERROR(\"` %s\\n\
", procname);")
844 v
.add_decl
("PRINT_ERROR(\"-------------------------------------------------\\n\
");")
845 v
.add_decl
("free(procname);")
847 v
.add_decl
("#endif /* NO_STACKTRACE */")
851 v
.add_decl
("void sig_handler(int signo)\{")
852 v
.add_decl
("PRINT_ERROR(\"Caught signal
: %s\\n\
", strsignal(signo));")
853 v
.add_decl
("show_backtrace();")
855 v
.add_decl
("signal(signo, SIG_DFL);")
856 v
.add_decl
("kill(getpid(), signo);")
859 v
.add_decl
("void fatal_exit(int status) \{")
860 v
.add_decl
("show_backtrace();")
861 v
.add_decl
("exit(status);")
865 v
.add_decl
("int nit_main(int argc, char** argv) \{")
867 v
.add_decl
("int main(int argc, char** argv) \{")
870 v
.add
"#if !defined(__ANDROID__) && !defined(TARGET_OS_IPHONE)"
871 v
.add
("signal(SIGABRT, sig_handler);")
872 v
.add
("signal(SIGFPE, sig_handler);")
873 v
.add
("signal(SIGILL, sig_handler);")
874 v
.add
("signal(SIGINT, sig_handler);")
875 v
.add
("signal(SIGTERM, sig_handler);")
876 v
.add
("signal(SIGSEGV, sig_handler);")
878 v
.add
("signal(SIGPIPE, SIG_IGN);")
880 v
.add
("glob_argc = argc; glob_argv = argv;")
881 v
.add
("initialize_gc_option();")
883 v
.add
"initialize_nitni_global_refs();"
885 var main_type
= mainmodule
.sys_type
886 if main_type
!= null then
887 var mainmodule
= v
.compiler
.mainmodule
888 var glob_sys
= v
.init_instance
(main_type
)
889 v
.add
("glob_sys = {glob_sys};")
890 var main_init
= mainmodule
.try_get_primitive_method
("init", main_type
.mclass
)
891 if main_init
!= null then
892 v
.send
(main_init
, [glob_sys
])
894 var main_method
= mainmodule
.try_get_primitive_method
("run", main_type
.mclass
) or else
895 mainmodule
.try_get_primitive_method
("main", main_type
.mclass
)
896 if main_method
!= null then
897 v
.send
(main_method
, [glob_sys
])
901 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
902 v
.add_decl
("long count_type_test_resolved_total = 0;")
903 v
.add_decl
("long count_type_test_unresolved_total = 0;")
904 v
.add_decl
("long count_type_test_skipped_total = 0;")
905 v
.add_decl
("long count_type_test_total_total = 0;")
906 for tag
in count_type_test_tags
do
907 v
.add_decl
("long count_type_test_total_{tag};")
908 v
.add
("count_type_test_total_{tag} = count_type_test_resolved_{tag} + count_type_test_unresolved_{tag} + count_type_test_skipped_{tag};")
909 v
.add
("count_type_test_resolved_total += count_type_test_resolved_{tag};")
910 v
.add
("count_type_test_unresolved_total += count_type_test_unresolved_{tag};")
911 v
.add
("count_type_test_skipped_total += count_type_test_skipped_{tag};")
912 v
.add
("count_type_test_total_total += count_type_test_total_{tag};")
914 v
.add
("printf(\"# dynamic count_type_test: total %l\\n\");")
915 v
.add
("printf(\"\\tresolved\\tunresolved\\tskipped\\ttotal\\n\
");")
916 var tags
= count_type_test_tags
.to_a
919 v
.add
("printf(\"{tag}\
");")
920 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_resolved_{tag}, 100.0*count_type_test_resolved_{tag}/count_type_test_total_total);")
921 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_unresolved_{tag}, 100.0*count_type_test_unresolved_{tag}/count_type_test_total_total);")
922 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\
", count_type_test_skipped_{tag}, 100.0*count_type_test_skipped_{tag}/count_type_test_total_total);")
923 v
.add
("printf(\"\\t
%ld
(%.2f
%%)\\n\
", count_type_test_total_{tag}, 100.0*count_type_test_total_{tag}/count_type_test_total_total);")
927 if self.modelbuilder
.toolcontext
.opt_invocation_metrics
.value
then
928 v
.add_decl
("long count_invoke_total;")
929 v
.add
("count_invoke_total = count_invoke_by_tables + count_invoke_by_direct + count_invoke_by_inline;")
930 v
.add
("printf(\"# dynamic count_invocation: total %ld\\n\", count_invoke_total);")
931 v
.add
("printf(\"by table
: %ld
(%.2f
%%)\\n\
", count_invoke_by_tables, 100.0*count_invoke_by_tables/count_invoke_total);")
932 v
.add
("printf(\"direct
: %ld
(%.2f
%%)\\n\
", count_invoke_by_direct, 100.0*count_invoke_by_direct/count_invoke_total);")
933 v
.add
("printf(\"inlined
: %ld
(%.2f
%%)\\n\
", count_invoke_by_inline, 100.0*count_invoke_by_inline/count_invoke_total);")
936 if self.modelbuilder
.toolcontext
.opt_isset_checks_metrics
.value
then
937 v
.add
("printf(\"# dynamic attribute reads: %ld\\n\", count_attr_reads);")
938 v
.add
("printf(\"# dynamic isset checks: %ld\\n\", count_isset_checks);")
944 for m
in mainmodule
.in_importation
.greaters
do
945 var f
= "FILE_"+m
.c_name
946 v
.add
"const char {f}[] = \"{m.location.file.filename.escape_to_c}\
";"
947 provide_declaration
(f
, "extern const char {f}[];")
951 # Copile all C functions related to the [incr|decr]_ref features of the FFI
952 fun compile_nitni_global_ref_functions
954 var v
= self.new_visitor
956 struct nitni_global_ref_list_t *nitni_global_ref_list;
957 void initialize_nitni_global_refs() {
958 nitni_global_ref_list = (struct nitni_global_ref_list_t*)nit_alloc(sizeof(struct nitni_global_ref_list_t));
959 nitni_global_ref_list->head = NULL;
960 nitni_global_ref_list->tail = NULL;
963 void nitni_global_ref_add( struct nitni_ref *ref ) {
964 if ( nitni_global_ref_list->head == NULL ) {
965 nitni_global_ref_list->head = ref;
968 nitni_global_ref_list->tail->next = ref;
969 ref->prev = nitni_global_ref_list->tail;
971 nitni_global_ref_list->tail = ref;
976 void nitni_global_ref_remove( struct nitni_ref *ref ) {
977 if ( ref->prev == NULL ) {
978 nitni_global_ref_list->head = ref->next;
980 ref->prev->next = ref->next;
983 if ( ref->next == NULL ) {
984 nitni_global_ref_list->tail = ref->prev;
986 ref->next->prev = ref->prev;
990 extern void nitni_global_ref_incr( struct nitni_ref *ref ) {
991 if ( ref->count == 0 ) /* not registered */
994 nitni_global_ref_add( ref );
1000 extern void nitni_global_ref_decr( struct nitni_ref *ref ) {
1001 if ( ref->count == 1 ) /* was last reference */
1003 /* remove from list */
1004 nitni_global_ref_remove( ref );
1012 # List of additional files required to compile (FFI)
1013 var extern_bodies
= new Array[ExternFile]
1015 # List of source files to copy over to the compile dir
1016 var files_to_copy
= new Array[String]
1018 # This is used to avoid adding an extern file more than once
1019 private var seen_extern
= new ArraySet[String]
1021 # Generate code that initialize the attributes on a new instance
1022 fun generate_init_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1024 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1025 self.mainmodule
.linearize_mclassdefs
(cds
)
1027 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1028 npropdef
.init_expr
(v
, recv
)
1033 # Generate code that check if an attribute is correctly initialized
1034 fun generate_check_attr
(v
: VISITOR, recv
: RuntimeVariable, mtype
: MClassType)
1036 var cds
= mtype
.collect_mclassdefs
(self.mainmodule
).to_a
1037 self.mainmodule
.linearize_mclassdefs
(cds
)
1039 for npropdef
in modelbuilder
.collect_attr_propdef
(cd
) do
1040 npropdef
.check_expr
(v
, recv
)
1047 var count_type_test_tags
: Array[String] = ["isa", "as", "auto", "covariance", "erasure"]
1048 var count_type_test_resolved
: HashMap[String, Int] = init_count_type_test_tags
1049 var count_type_test_unresolved
: HashMap[String, Int] = init_count_type_test_tags
1050 var count_type_test_skipped
: HashMap[String, Int] = init_count_type_test_tags
1052 protected fun init_count_type_test_tags
: HashMap[String, Int]
1054 var res
= new HashMap[String, Int]
1055 for tag
in count_type_test_tags
do
1061 # Display stats about compilation process
1065 # * type tests against resolved types (`x isa Collection[Animal]`)
1066 # * type tests against unresolved types (`x isa Collection[E]`)
1067 # * type tests skipped
1068 # * type tests total
1071 if self.modelbuilder
.toolcontext
.opt_typing_test_metrics
.value
then
1072 print
"# static count_type_test"
1073 print
"\tresolved:\tunresolved\tskipped\ttotal"
1074 var count_type_test_total
= init_count_type_test_tags
1075 count_type_test_resolved
["total"] = 0
1076 count_type_test_unresolved
["total"] = 0
1077 count_type_test_skipped
["total"] = 0
1078 count_type_test_total
["total"] = 0
1079 for tag
in count_type_test_tags
do
1080 count_type_test_total
[tag
] = count_type_test_resolved
[tag
] + count_type_test_unresolved
[tag
] + count_type_test_skipped
[tag
]
1081 count_type_test_resolved
["total"] += count_type_test_resolved
[tag
]
1082 count_type_test_unresolved
["total"] += count_type_test_unresolved
[tag
]
1083 count_type_test_skipped
["total"] += count_type_test_skipped
[tag
]
1084 count_type_test_total
["total"] += count_type_test_total
[tag
]
1086 var count_type_test
= count_type_test_total
["total"]
1087 var tags
= count_type_test_tags
.to_a
1091 printn
"\t{count_type_test_resolved[tag]} ({div(count_type_test_resolved[tag],count_type_test)}%)"
1092 printn
"\t{count_type_test_unresolved[tag]} ({div(count_type_test_unresolved[tag],count_type_test)}%)"
1093 printn
"\t{count_type_test_skipped[tag]} ({div(count_type_test_skipped[tag],count_type_test)}%)"
1094 printn
"\t{count_type_test_total[tag]} ({div(count_type_test_total[tag],count_type_test)}%)"
1100 fun finalize_ffi_for_module
(mmodule
: MModule) do mmodule
.finalize_ffi
(self)
1103 # A file unit (may be more than one file if
1104 # A file unit aim to be autonomous and is made or one or more `CodeWriter`s
1107 var writers
= new Array[CodeWriter]
1108 var required_declarations
= new HashSet[String]
1111 # Where to store generated lines
1114 var lines
: List[String] = new List[String]
1115 var decl_lines
: List[String] = new List[String]
1117 # Add a line in the main part of the generated C
1118 fun add
(s
: String) do self.lines
.add
(s
)
1121 # (used for local or global declaration)
1122 fun add_decl
(s
: String) do self.decl_lines
.add
(s
)
1126 file
.writers
.add
(self)
1130 # A visitor on the AST of property definition that generate the C code.
1131 abstract class AbstractCompilerVisitor
1133 type COMPILER: AbstractCompiler
1135 # The associated compiler
1136 var compiler
: COMPILER
1138 # The current visited AST node
1139 var current_node
: nullable ANode = null is writable
1141 # The current `StaticFrame`
1142 var frame
: nullable StaticFrame = null is writable
1144 # Alias for self.compiler.mainmodule.object_type
1145 fun object_type
: MClassType do return self.compiler
.mainmodule
.object_type
1147 # Alias for self.compiler.mainmodule.bool_type
1148 fun bool_type
: MClassType do return self.compiler
.mainmodule
.bool_type
1150 var writer
: CodeWriter is noinit
1154 self.writer
= new CodeWriter(compiler
.files
.last
)
1157 # Force to get the primitive property named `name` in the instance `recv` or abort
1158 fun get_property
(name
: String, recv
: MType): MMethod
1160 assert recv
isa MClassType
1161 return self.compiler
.modelbuilder
.force_get_primitive_method
(self.current_node
, name
, recv
.mclass
, self.compiler
.mainmodule
)
1164 fun compile_callsite
(callsite
: CallSite, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
1166 if callsite
.is_broken
then return null
1167 var initializers
= callsite
.mpropdef
.initializers
1168 if not initializers
.is_empty
then
1169 var recv
= arguments
.first
1172 for p
in initializers
do
1173 if p
isa MMethod then
1175 for x
in p
.intro
.msignature
.mparameters
do
1176 args
.add arguments
[i
]
1180 else if p
isa MAttribute then
1181 self.write_attribute
(p
, recv
, arguments
[i
])
1185 assert i
== arguments
.length
1187 return self.send
(callsite
.mproperty
, [recv
])
1190 return self.send
(callsite
.mproperty
, arguments
)
1193 fun native_array_instance
(elttype
: MType, length
: RuntimeVariable): RuntimeVariable is abstract
1195 fun calloc_array
(ret_type
: MType, arguments
: Array[RuntimeVariable]) is abstract
1197 fun native_array_def
(pname
: String, ret_type
: nullable MType, arguments
: Array[RuntimeVariable]): Bool do return false
1199 # Return an element of a native array.
1200 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1201 fun native_array_get
(native_array
: RuntimeVariable, index
: Int): RuntimeVariable is abstract
1203 # Store an element in a native array.
1204 # The method is unsafe and is just a direct wrapper for the specific implementation of native arrays
1205 fun native_array_set
(native_array
: RuntimeVariable, index
: Int, value
: RuntimeVariable) is abstract
1207 # Evaluate `args` as expressions in the call of `mpropdef` on `recv`.
1208 # This method is used to manage varargs in signatures and returns the real array
1209 # of runtime variables to use in the call.
1210 fun varargize
(mpropdef
: MMethodDef, map
: nullable SignatureMap, recv
: RuntimeVariable, args
: SequenceRead[AExpr]): Array[RuntimeVariable]
1212 var msignature
= mpropdef
.new_msignature
or else mpropdef
.msignature
.as(not null)
1213 var res
= new Array[RuntimeVariable]
1216 if msignature
.arity
== 0 then return res
1219 assert args
.length
== msignature
.arity
1221 res
.add
self.expr
(ne
, null)
1226 # Eval in order of arguments, not parameters
1227 var exprs
= new Array[RuntimeVariable].with_capacity
(args
.length
)
1229 exprs
.add
self.expr
(ne
, null)
1232 # Fill `res` with the result of the evaluation according to the mapping
1233 for i
in [0..msignature
.arity
[ do
1234 var param
= msignature
.mparameters
[i
]
1235 var j
= map
.map
.get_or_null
(i
)
1238 res
.add
(null_instance
)
1241 if param
.is_vararg
and args
[i
].vararg_decl
> 0 then
1242 var vararg
= exprs
.sub
(j
, args
[i
].vararg_decl
)
1243 var elttype
= param
.mtype
1244 var arg
= self.vararg_instance
(mpropdef
, recv
, vararg
, elttype
)
1255 # Anchor a type to the main module and the current receiver
1256 fun anchor
(mtype
: MType): MType
1258 if not mtype
.need_anchor
then return mtype
1259 return mtype
.anchor_to
(self.compiler
.mainmodule
, self.frame
.receiver
)
1262 fun resolve_for
(mtype
: MType, recv
: RuntimeVariable): MType
1264 if not mtype
.need_anchor
then return mtype
1265 return mtype
.resolve_for
(recv
.mcasttype
, self.frame
.receiver
, self.compiler
.mainmodule
, true)
1268 # Unsafely cast a value to a new type
1269 # ie the result share the same C variable but my have a different mcasttype
1270 # NOTE: if the adaptation is useless then `value` is returned as it.
1271 # ENSURE: `result.name == value.name`
1272 fun autoadapt
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable
1274 mtype
= self.anchor
(mtype
)
1275 var valmtype
= value
.mcasttype
1276 if valmtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1280 if valmtype
isa MNullableType and valmtype
.mtype
.is_subtype
(self.compiler
.mainmodule
, null, mtype
) then
1281 var res
= new RuntimeVariable(value
.name
, valmtype
, valmtype
.mtype
)
1284 var res
= new RuntimeVariable(value
.name
, valmtype
, mtype
)
1289 # Generate a super call from a method definition
1290 fun supercall
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1292 # Adapt the arguments of a method according to targetted `MMethodDef`
1293 fun adapt_signature
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1295 # Unbox all the arguments of a method when implemented `extern` or `intern`
1296 fun unbox_signature_extern
(m
: MMethodDef, args
: Array[RuntimeVariable]) is abstract
1298 # Box or unbox a value to another type iff a C type conversion is needed
1299 # ENSURE: `result.mtype.ctype == mtype.ctype`
1300 fun autobox
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1302 # Box extern classes to be used in the generated code
1303 fun box_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1305 # Unbox extern classes to be used in extern code (legacy NI and FFI)
1306 fun unbox_extern
(value
: RuntimeVariable, mtype
: MType): RuntimeVariable is abstract
1308 # Generate a polymorphic subtype test
1309 fun type_test
(value
: RuntimeVariable, mtype
: MType, tag
: String): RuntimeVariable is abstract
1311 # Generate the code required to dynamically check if 2 objects share the same runtime type
1312 fun is_same_type_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1314 # Generate a Nit "is" for two runtime_variables
1315 fun equal_test
(value1
, value2
: RuntimeVariable): RuntimeVariable is abstract
1319 # Generate a static call on a method definition
1320 fun call
(m
: MMethodDef, recvtype
: MClassType, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1322 # Generate a polymorphic send for the method `m` and the arguments `args`
1323 fun send
(m
: MMethod, args
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1325 # Generate a monomorphic send for the method `m`, the type `t` and the arguments `args`
1326 fun monomorphic_send
(m
: MMethod, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1328 assert t
isa MClassType
1329 var propdef
= m
.lookup_first_definition
(self.compiler
.mainmodule
, t
)
1330 return self.call
(propdef
, t
, args
)
1333 # Generate a monomorphic super send from the method `m`, the type `t` and the arguments `args`
1334 fun monomorphic_super_send
(m
: MMethodDef, t
: MType, args
: Array[RuntimeVariable]): nullable RuntimeVariable
1336 assert t
isa MClassType
1337 m
= m
.lookup_next_definition
(self.compiler
.mainmodule
, t
)
1338 return self.call
(m
, t
, args
)
1341 # Attributes handling
1343 # Generate a polymorphic attribute is_set test
1344 fun isset_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1346 # Generate a polymorphic attribute read
1347 fun read_attribute
(a
: MAttribute, recv
: RuntimeVariable): RuntimeVariable is abstract
1349 # Generate a polymorphic attribute write
1350 fun write_attribute
(a
: MAttribute, recv
: RuntimeVariable, value
: RuntimeVariable) is abstract
1354 # Add a check and an abort for a null receiver if needed
1355 fun check_recv_notnull
(recv
: RuntimeVariable)
1357 if self.compiler
.modelbuilder
.toolcontext
.opt_no_check_null
.value
then return
1359 var maybenull
= recv
.mcasttype
isa MNullableType or recv
.mcasttype
isa MNullType
1361 self.add
("if (unlikely({recv} == NULL)) \{")
1362 self.add_abort
("Receiver is null")
1369 private var names
= new HashSet[String]
1370 private var last
: Int = 0
1372 # Return a new name based on `s` and unique in the visitor
1373 fun get_name
(s
: String): String
1375 if not self.names
.has
(s
) then
1379 var i
= self.last
+ 1
1382 if not self.names
.has
(s2
) then
1391 # Return an unique and stable identifier associated with an escapemark
1392 fun escapemark_name
(e
: nullable EscapeMark): String
1395 if frame
.escapemark_names
.has_key
(e
) then return frame
.escapemark_names
[e
]
1397 if name
== null then name
= "label"
1398 name
= get_name
(name
)
1399 frame
.escapemark_names
[e
] = name
1403 # Insert a C label for associated with an escapemark
1404 fun add_escape_label
(e
: nullable EscapeMark)
1406 if e
== null then return
1407 if e
.escapes
.is_empty
then return
1408 add
("BREAK_{escapemark_name(e)}: (void)0;")
1411 # Return a "const char*" variable associated to the classname of the dynamic type of an object
1412 # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
1413 fun class_name_string
(value
: RuntimeVariable): String is abstract
1415 # Variables handling
1417 protected var variables
= new HashMap[Variable, RuntimeVariable]
1419 # Return the local runtime_variable associated to a Nit local variable
1420 fun variable
(variable
: Variable): RuntimeVariable
1422 if self.variables
.has_key
(variable
) then
1423 return self.variables
[variable
]
1425 var name
= self.get_name
("var_{variable.name}")
1426 var mtype
= variable
.declared_type
.as(not null)
1427 mtype
= self.anchor
(mtype
)
1428 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1429 self.add_decl
("{mtype.ctype} {name} /* var {variable}: {mtype} */;")
1430 self.variables
[variable
] = res
1435 # Return a new uninitialized local runtime_variable
1436 fun new_var
(mtype
: MType): RuntimeVariable
1438 mtype
= self.anchor
(mtype
)
1439 var name
= self.get_name
("var")
1440 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1441 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1445 # The difference with `new_var` is the C static type of the local variable
1446 fun new_var_extern
(mtype
: MType): RuntimeVariable
1448 mtype
= self.anchor
(mtype
)
1449 var name
= self.get_name
("var")
1450 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1451 self.add_decl
("{mtype.ctype_extern} {name} /* : {mtype} for extern */;")
1455 # Return a new uninitialized named runtime_variable
1456 fun new_named_var
(mtype
: MType, name
: String): RuntimeVariable
1458 mtype
= self.anchor
(mtype
)
1459 var res
= new RuntimeVariable(name
, mtype
, mtype
)
1460 self.add_decl
("{mtype.ctype} {name} /* : {mtype} */;")
1464 # Correctly assign a left and a right value
1465 # Boxing and unboxing is performed if required
1466 fun assign
(left
, right
: RuntimeVariable)
1468 right
= self.autobox
(right
, left
.mtype
)
1469 self.add
("{left} = {right};")
1472 # Generate instances
1474 # Generate a alloc-instance + init-attributes
1475 fun init_instance
(mtype
: MClassType): RuntimeVariable is abstract
1477 # Allocate and init attributes of an instance of a standard or extern class
1479 # Does not support universals and the pseudo-internal `NativeArray` class.
1480 fun init_instance_or_extern
(mtype
: MClassType): RuntimeVariable
1483 var ctype
= mtype
.ctype
1484 assert mtype
.mclass
.name
!= "NativeArray"
1485 if not mtype
.is_c_primitive
then
1486 recv
= init_instance
(mtype
)
1487 else if ctype
== "char*" then
1488 recv
= new_expr
("NULL/*special!*/", mtype
)
1490 recv
= new_expr
("({ctype})0/*special!*/", mtype
)
1495 # Set a GC finalizer on `recv`, only if `recv` isa Finalizable
1496 fun set_finalizer
(recv
: RuntimeVariable)
1498 var mtype
= recv
.mtype
1499 var finalizable_type
= compiler
.mainmodule
.finalizable_type
1500 if finalizable_type
!= null and not mtype
.need_anchor
and
1501 mtype
.is_subtype
(compiler
.mainmodule
, null, finalizable_type
) then
1502 add
"gc_register_finalizer({recv});"
1506 # The currently processed module
1508 # alias for `compiler.mainmodule`
1509 fun mmodule
: MModule do return compiler
.mainmodule
1511 # Generate an integer value
1512 fun int_instance
(value
: Int): RuntimeVariable
1514 var t
= mmodule
.int_type
1515 var res
= new RuntimeVariable("{value.to_s}l", t
, t
)
1519 # Generate a byte value
1520 fun byte_instance
(value
: Byte): RuntimeVariable
1522 var t
= mmodule
.byte_type
1523 var res
= new RuntimeVariable("((unsigned char){value.to_s})", t
, t
)
1527 # Generate an int8 value
1528 fun int8_instance
(value
: Int8): RuntimeVariable
1530 var t
= mmodule
.int8_type
1531 var res
= new RuntimeVariable("((int8_t){value.to_s})", t
, t
)
1535 # Generate an int16 value
1536 fun int16_instance
(value
: Int16): RuntimeVariable
1538 var t
= mmodule
.int16_type
1539 var res
= new RuntimeVariable("((int16_t){value.to_s})", t
, t
)
1543 # Generate a uint16 value
1544 fun uint16_instance
(value
: UInt16): RuntimeVariable
1546 var t
= mmodule
.uint16_type
1547 var res
= new RuntimeVariable("((uint16_t){value.to_s})", t
, t
)
1551 # Generate an int32 value
1552 fun int32_instance
(value
: Int32): RuntimeVariable
1554 var t
= mmodule
.int32_type
1555 var res
= new RuntimeVariable("((int32_t){value.to_s})", t
, t
)
1559 # Generate a uint32 value
1560 fun uint32_instance
(value
: UInt32): RuntimeVariable
1562 var t
= mmodule
.uint32_type
1563 var res
= new RuntimeVariable("((uint32_t){value.to_s})", t
, t
)
1567 # Generate a char value
1568 fun char_instance
(value
: Char): RuntimeVariable
1570 var t
= mmodule
.char_type
1572 if value
.code_point
< 128 then
1573 return new RuntimeVariable("'{value.to_s.escape_to_c}'", t
, t
)
1575 return new RuntimeVariable("{value.code_point}", t
, t
)
1579 # Generate a float value
1581 # FIXME pass a Float, not a string
1582 fun float_instance
(value
: String): RuntimeVariable
1584 var t
= mmodule
.float_type
1585 var res
= new RuntimeVariable("{value}", t
, t
)
1589 # Generate an integer value
1590 fun bool_instance
(value
: Bool): RuntimeVariable
1592 var s
= if value
then "1" else "0"
1593 var res
= new RuntimeVariable(s
, bool_type
, bool_type
)
1597 # Generate the `null` value
1598 fun null_instance
: RuntimeVariable
1600 var t
= compiler
.mainmodule
.model
.null_type
1601 var res
= new RuntimeVariable("((val*)NULL)", t
, t
)
1605 # Generate a string value
1606 fun string_instance
(string
: String): RuntimeVariable
1608 var mtype
= mmodule
.string_type
1609 var name
= self.get_name
("varonce")
1610 self.add_decl
("static {mtype.ctype} {name};")
1611 var res
= self.new_var
(mtype
)
1612 self.add
("if (likely({name}!=NULL)) \{")
1613 self.add
("{res} = {name};")
1614 self.add
("\} else \{")
1615 var native_mtype
= mmodule
.native_string_type
1616 var nat
= self.new_var
(native_mtype
)
1617 self.add
("{nat} = \"{string.escape_to_c}\
";")
1618 var bytelen
= self.int_instance
(string
.bytelen
)
1619 var unilen
= self.int_instance
(string
.length
)
1620 self.add
("{res} = {self.send(self.get_property("to_s_full", native_mtype), [nat, bytelen, unilen]).as(not null)};")
1621 self.add
("{name} = {res};")
1626 fun value_instance
(object
: Object): RuntimeVariable
1628 if object
isa Int then
1629 return int_instance
(object
)
1630 else if object
isa Bool then
1631 return bool_instance
(object
)
1632 else if object
isa String then
1633 return string_instance
(object
)
1639 # Generate an array value
1640 fun array_instance
(array
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1642 # Get an instance of a array for a vararg
1643 fun vararg_instance
(mpropdef
: MPropDef, recv
: RuntimeVariable, varargs
: Array[RuntimeVariable], elttype
: MType): RuntimeVariable is abstract
1647 # Add a line in the main part of the generated C
1648 fun add
(s
: String) do self.writer
.lines
.add
(s
)
1651 # (used for local or global declaration)
1652 fun add_decl
(s
: String) do self.writer
.decl_lines
.add
(s
)
1654 # Request the presence of a global declaration
1655 fun require_declaration
(key
: String)
1657 var reqs
= self.writer
.file
.required_declarations
1658 if reqs
.has
(key
) then return
1660 var node
= current_node
1661 if node
!= null then compiler
.requirers_of_declarations
[key
] = node
1664 # Add a declaration in the local-header
1665 # The declaration is ensured to be present once
1666 fun declare_once
(s
: String)
1668 self.compiler
.provide_declaration
(s
, s
)
1669 self.require_declaration
(s
)
1672 # Look for a needed .h and .c file for a given module
1673 # This is used for the legacy FFI
1674 fun add_extern
(mmodule
: MModule)
1676 var file
= mmodule
.filepath
1677 file
= file
.strip_extension
(".nit")
1678 var tryfile
= file
+ ".nit.h"
1679 if tryfile
.file_exists
then
1680 self.declare_once
("#include \"{tryfile.basename}\
"")
1681 self.compiler
.files_to_copy
.add
(tryfile
)
1683 tryfile
= file
+ "_nit.h"
1684 if tryfile
.file_exists
then
1685 self.declare_once
("#include \"{tryfile.basename}\
"")
1686 self.compiler
.files_to_copy
.add
(tryfile
)
1689 if self.compiler
.seen_extern
.has
(file
) then return
1690 self.compiler
.seen_extern
.add
(file
)
1691 tryfile
= file
+ ".nit.c"
1692 if not tryfile
.file_exists
then
1693 tryfile
= file
+ "_nit.c"
1694 if not tryfile
.file_exists
then return
1696 var f
= new ExternCFile(tryfile
.basename
, "")
1697 self.compiler
.extern_bodies
.add
(f
)
1698 self.compiler
.files_to_copy
.add
(tryfile
)
1701 # Return a new local runtime_variable initialized with the C expression `cexpr`.
1702 fun new_expr
(cexpr
: String, mtype
: MType): RuntimeVariable
1704 var res
= new_var
(mtype
)
1705 self.add
("{res} = {cexpr};")
1709 # Generate generic abort
1710 # used by aborts, asserts, casts, etc.
1711 fun add_abort
(message
: String)
1713 self.add
("PRINT_ERROR(\"Runtime error
: %s\
", \"{message.escape_to_c}\
");")
1719 if self.current_node
!= null and self.current_node
.location
.file
!= null and
1720 self.current_node
.location
.file
.mmodule
!= null then
1721 var f
= "FILE_{self.current_node.location.file.mmodule.c_name}"
1722 self.require_declaration
(f
)
1723 self.add
("PRINT_ERROR(\" (%s
:%d
)\\n\
", {f}, {current_node.location.line_start});")
1725 self.add
("PRINT_ERROR(\"\\n\
");")
1727 self.add
("fatal_exit(1);")
1730 # Add a dynamic cast
1731 fun add_cast
(value
: RuntimeVariable, mtype
: MType, tag
: String)
1733 var res
= self.type_test
(value
, mtype
, tag
)
1734 self.add
("if (unlikely(!{res})) \{")
1735 var cn
= self.class_name_string
(value
)
1736 self.add
("PRINT_ERROR(\"Runtime error
: Cast failed
. Expected `%s`, got
`%s`\
", \"{mtype.to_s.escape_to_c}\
", {cn});")
1741 # Generate a return with the value `s`
1742 fun ret
(s
: RuntimeVariable)
1744 self.assign
(self.frame
.returnvar
.as(not null), s
)
1745 self.add
("goto {self.frame.returnlabel.as(not null)};")
1748 # Compile a statement (if any)
1749 fun stmt
(nexpr
: nullable AExpr)
1751 if nexpr
== null then return
1752 if nexpr
.is_broken
then
1753 # Untyped expression.
1754 # Might mean dead code or invalid code
1756 add_abort
("FATAL: bad statement executed.")
1760 var narray
= nexpr
.comprehension
1761 if narray
!= null then
1762 var recv
= frame
.comprehension
.as(not null)
1763 var val
= expr
(nexpr
, narray
.element_mtype
)
1764 compile_callsite
(narray
.push_callsite
.as(not null), [recv
, val
])
1768 var old
= self.current_node
1769 self.current_node
= nexpr
1771 self.current_node
= old
1774 # Compile an expression an return its result
1775 # `mtype` is the expected return type, pass null if no specific type is expected.
1776 fun expr
(nexpr
: AExpr, mtype
: nullable MType): RuntimeVariable
1778 var old
= self.current_node
1779 self.current_node
= nexpr
1782 if nexpr
.mtype
!= null then
1783 res
= nexpr
.expr
(self)
1787 # Untyped expression.
1788 # Might mean dead code or invalid code.
1790 add_abort
("FATAL: bad expression executed.")
1791 # and return a placebo result to please the C compiler
1792 if mtype
== null then mtype
= compiler
.mainmodule
.object_type
1793 res
= new_var
(mtype
)
1795 self.current_node
= old
1799 if mtype
!= null then
1800 mtype
= self.anchor
(mtype
)
1801 res
= self.autobox
(res
, mtype
)
1803 res
= autoadapt
(res
, nexpr
.mtype
.as(not null))
1804 var implicit_cast_to
= nexpr
.implicit_cast_to
1805 if implicit_cast_to
!= null and not self.compiler
.modelbuilder
.toolcontext
.opt_no_check_autocast
.value
then
1806 add_cast
(res
, implicit_cast_to
, "auto")
1807 res
= autoadapt
(res
, implicit_cast_to
)
1809 self.current_node
= old
1813 # Alias for `self.expr(nexpr, self.bool_type)`
1814 fun expr_bool
(nexpr
: AExpr): RuntimeVariable do return expr
(nexpr
, bool_type
)
1816 # Safely show a debug message on the current node and repeat the message in the C code as a comment
1817 fun debug
(message
: String)
1819 var node
= self.current_node
1820 if node
== null then
1821 print
"?: {message}"
1825 self.add
("/* DEBUG: {message} */")
1829 # A C function associated to a Nit method
1830 # Because of customization, a given Nit method can be compiler more that once
1831 abstract class AbstractRuntimeFunction
1833 type COMPILER: AbstractCompiler
1834 type VISITOR: AbstractCompilerVisitor
1836 # The associated Nit method
1837 var mmethoddef
: MMethodDef
1839 # The mangled c name of the runtime_function
1840 # Subclasses should redefine `build_c_name` instead
1843 var res
= self.c_name_cache
1844 if res
!= null then return res
1845 res
= self.build_c_name
1846 self.c_name_cache
= res
1850 # Non cached version of `c_name`
1851 protected fun build_c_name
: String is abstract
1853 protected var c_name_cache
: nullable String = null is writable
1855 # Implements a call of the runtime_function
1856 # May inline the body or generate a C function call
1857 fun call
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
1859 # Generate the code for the `AbstractRuntimeFunction`
1860 # Warning: compile more than once compilation makes CC unhappy
1861 fun compile_to_c
(compiler
: COMPILER) is abstract
1864 # A runtime variable hold a runtime value in C.
1865 # Runtime variables are associated to Nit local variables and intermediate results in Nit expressions.
1867 # 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.
1868 class RuntimeVariable
1869 # The name of the variable in the C code
1872 # The static type of the variable (as declard in C)
1875 # The current casted type of the variable (as known in Nit)
1876 var mcasttype
: MType is writable
1878 # If the variable exaclty a mcasttype?
1879 # false (usual value) means that the variable is a mcasttype or a subtype.
1880 var is_exact
: Bool = false is writable
1884 assert not mtype
.need_anchor
1885 assert not mcasttype
.need_anchor
1888 redef fun to_s
do return name
1893 if self.is_exact
then
1894 exact_str
= " exact"
1899 if self.mtype
== self.mcasttype
then
1900 type_str
= "{mtype}{exact_str}"
1902 type_str
= "{mtype}({mcasttype}{exact_str})"
1904 return "<{name}:{type_str}>"
1908 # The static context of a visited property in a `AbstractCompilerVisitor`
1911 type VISITOR: AbstractCompilerVisitor
1913 # The associated visitor
1914 var visitor
: VISITOR
1916 # The executed property.
1917 # A Method in case of a call, an attribute in case of a default initialization.
1918 var mpropdef
: MPropDef
1920 # The static type of the receiver
1921 var receiver
: MClassType
1923 # Arguments of the method (the first is the receiver)
1924 var arguments
: Array[RuntimeVariable]
1926 # The runtime_variable associated to the return (in a function)
1927 var returnvar
: nullable RuntimeVariable = null is writable
1929 # The label at the end of the property
1930 var returnlabel
: nullable String = null is writable
1932 # Labels associated to a each escapemarks.
1933 # Because of inlinings, escape-marks must be associated to their context (the frame)
1934 private var escapemark_names
= new HashMap[EscapeMark, String]
1936 # The array comprehension currently filled, if any
1937 private var comprehension
: nullable RuntimeVariable = null
1941 # Return the C type associated to a given Nit static type
1942 fun ctype
: String do return "val*"
1944 # C type outside of the compiler code and in boxes
1945 fun ctype_extern
: String do return "val*"
1947 # Short name of the `ctype` to use in unions
1948 fun ctypename
: String do return "val"
1950 # Is the associated C type a primitive one?
1952 # ENSURE `result == (ctype != "val*")`
1953 fun is_c_primitive
: Bool do return false
1956 redef class MClassType
1958 redef var ctype
is lazy
do
1959 if mclass
.name
== "Int" then
1961 else if mclass
.name
== "Bool" then
1963 else if mclass
.name
== "Char" then
1965 else if mclass
.name
== "Float" then
1967 else if mclass
.name
== "Int8" then
1969 else if mclass
.name
== "Byte" then
1970 return "unsigned char"
1971 else if mclass
.name
== "Int16" then
1973 else if mclass
.name
== "UInt16" then
1975 else if mclass
.name
== "Int32" then
1977 else if mclass
.name
== "UInt32" then
1979 else if mclass
.name
== "NativeString" then
1981 else if mclass
.name
== "NativeArray" then
1988 redef var is_c_primitive
is lazy
do return ctype
!= "val*"
1990 redef fun ctype_extern
: String
1992 if mclass
.kind
== extern_kind
then
1999 redef fun ctypename
: String
2001 if mclass
.name
== "Int" then
2003 else if mclass
.name
== "Bool" then
2005 else if mclass
.name
== "Char" then
2007 else if mclass
.name
== "Float" then
2009 else if mclass
.name
== "Int8" then
2011 else if mclass
.name
== "Byte" then
2013 else if mclass
.name
== "Int16" then
2015 else if mclass
.name
== "UInt16" then
2017 else if mclass
.name
== "Int32" then
2019 else if mclass
.name
== "UInt32" then
2021 else if mclass
.name
== "NativeString" then
2023 else if mclass
.name
== "NativeArray" then
2024 #return "{self.arguments.first.ctype}*"
2032 redef class MPropDef
2033 type VISITOR: AbstractCompilerVisitor
2036 redef class MMethodDef
2037 # Can the body be inlined?
2038 fun can_inline
(v
: VISITOR): Bool
2040 if is_abstract
then return true
2041 if constant_value
!= null then return true
2042 var modelbuilder
= v
.compiler
.modelbuilder
2043 var node
= modelbuilder
.mpropdef2node
(self)
2044 if node
isa APropdef then
2045 return node
.can_inline
2046 else if node
isa AClassdef then
2047 # Automatic free init is always inlined since it is empty or contains only attribtes assigments
2054 # Inline the body in another visitor
2055 fun compile_inside_to_c
(v
: VISITOR, arguments
: Array[RuntimeVariable]): nullable RuntimeVariable
2057 var modelbuilder
= v
.compiler
.modelbuilder
2058 var val
= constant_value
2059 var node
= modelbuilder
.mpropdef2node
(self)
2062 var cn
= v
.class_name_string
(arguments
.first
)
2063 v
.current_node
= node
2064 v
.add
("PRINT_ERROR(\"Runtime error
: Abstract method
`%s` called on
`%s`\
", \"{mproperty.name.escape_to_c}\
", {cn});")
2069 if node
isa APropdef then
2070 var oldnode
= v
.current_node
2071 v
.current_node
= node
2072 self.compile_parameter_check
(v
, arguments
)
2073 node
.compile_to_c
(v
, self, arguments
)
2074 v
.current_node
= oldnode
2075 else if node
isa AClassdef then
2076 var oldnode
= v
.current_node
2077 v
.current_node
= node
2078 self.compile_parameter_check
(v
, arguments
)
2079 node
.compile_to_c
(v
, self, arguments
)
2080 v
.current_node
= oldnode
2081 else if val
!= null then
2082 v
.ret
(v
.value_instance
(val
))
2089 # Generate type checks in the C code to check covariant parameters
2090 fun compile_parameter_check
(v
: VISITOR, arguments
: Array[RuntimeVariable])
2092 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_covariance
.value
then return
2094 var msignature
= self.msignature
.as(not null)
2096 for i
in [0..msignature
.arity
[ do
2097 var mp
= msignature
.mparameters
[i
]
2098 # skip test for vararg since the array is instantiated with the correct polymorphic type
2099 if mp
.is_vararg
then continue
2101 # skip if the cast is not required
2102 var origmtype
= self.mproperty
.intro
.msignature
.mparameters
[i
].mtype
2103 if not origmtype
.need_anchor
then continue
2105 # get the parameter type
2106 var mtype
= mp
.mtype
2109 # note that v decides if and how to implements the cast
2110 v
.add
("/* Covariant cast for argument {i} ({mp.name}) {arguments[i+1].inspect} isa {mtype} */")
2111 v
.add_cast
(arguments
[i
+1], mtype
, "covariance")
2118 redef class APropdef
2119 fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
2121 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name} {mpropdef} at
{location.to_s}\\n\
");")
2122 debug
("Not yet implemented")
2125 fun can_inline
: Bool do return true
2128 redef class AMethPropdef
2129 redef fun compile_to_c
(v
, mpropdef
, arguments
)
2131 # Call the implicit super-init
2132 var auto_super_inits
= self.auto_super_inits
2133 if auto_super_inits
!= null then
2134 var args
= [arguments
.first
]
2135 for auto_super_init
in auto_super_inits
do
2136 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2138 for i
in [0..auto_super_init
.msignature
.arity
+1[ do
2139 args
.add
(arguments
[i
])
2141 assert auto_super_init
.mproperty
!= mpropdef
.mproperty
2142 v
.compile_callsite
(auto_super_init
, args
)
2145 if auto_super_call
then
2146 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
2149 # Try special compilation
2150 if mpropdef
.is_intern
then
2151 if compile_intern_to_c
(v
, mpropdef
, arguments
) then return
2153 if mpropdef
.is_extern
then
2154 if mpropdef
.mproperty
.is_init
then
2155 if compile_externinit_to_c
(v
, mpropdef
, arguments
) then return
2157 if compile_externmeth_to_c
(v
, mpropdef
, arguments
) then return
2161 # Compile block if any
2162 var n_block
= n_block
2163 if n_block
!= null then
2164 for i
in [0..mpropdef
.msignature
.arity
[ do
2165 var variable
= self.n_signature
.n_params
[i
].variable
.as(not null)
2166 v
.assign
(v
.variable
(variable
), arguments
[i
+1])
2173 var cn
= v
.class_name_string
(arguments
.first
)
2174 v
.add
("PRINT_ERROR(\"Runtime error
: uncompiled method
`%s` called on
`%s`. NOT YET IMPLEMENTED\
", \"{mpropdef.mproperty.name.escape_to_c}\
", {cn});")
2178 redef fun can_inline
2180 if self.auto_super_inits
!= null then return false
2181 var nblock
= self.n_block
2182 if nblock
== null then return true
2183 if (mpropdef
.mproperty
.name
== "==" or mpropdef
.mproperty
.name
== "!=") and mpropdef
.mclassdef
.mclass
.name
== "Object" then return true
2184 if nblock
isa ABlockExpr and nblock
.n_expr
.length
== 0 then return true
2188 fun compile_intern_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
2190 var pname
= mpropdef
.mproperty
.name
2191 var cname
= mpropdef
.mclassdef
.mclass
.name
2192 var ret
= mpropdef
.msignature
.return_mtype
2194 ret
= v
.resolve_for
(ret
, arguments
.first
)
2196 if pname
!= "==" and pname
!= "!=" then
2197 v
.adapt_signature
(mpropdef
, arguments
)
2198 v
.unbox_signature_extern
(mpropdef
, arguments
)
2200 if cname
== "Int" then
2201 if pname
== "output" then
2202 v
.add
("printf(\"%ld\\n\
", {arguments.first});")
2204 else if pname
== "object_id" then
2205 v
.ret
(arguments
.first
)
2207 else if pname
== "+" then
2208 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2210 else if pname
== "-" then
2211 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2213 else if pname
== "unary -" then
2214 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2216 else if pname
== "unary +" then
2219 else if pname
== "*" then
2220 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2222 else if pname
== "/" then
2223 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2225 else if pname
== "%" then
2226 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2228 else if pname
== "==" then
2229 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2231 else if pname
== "!=" then
2232 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2233 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2235 else if pname
== "<" then
2236 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2238 else if pname
== ">" then
2239 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2241 else if pname
== "<=" then
2242 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2244 else if pname
== ">=" then
2245 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2247 else if pname
== "to_i8" then
2248 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2250 else if pname
== "to_i16" then
2251 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2253 else if pname
== "to_u16" then
2254 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2256 else if pname
== "to_i32" then
2257 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2259 else if pname
== "to_u32" then
2260 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2262 else if pname
== "to_f" then
2263 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2265 else if pname
== "to_b" then
2266 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2268 else if pname
== "code_point" then
2269 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2271 else if pname
== "&" then
2272 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2274 else if pname
== "|" then
2275 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2277 else if pname
== ">>" then
2278 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2280 else if pname
== "<<" then
2281 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2284 else if cname
== "Char" then
2285 if pname
== "object_id" then
2286 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2288 else if pname
== "successor" then
2289 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2291 else if pname
== "predecessor" then
2292 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2294 else if pname
== "==" then
2295 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2297 else if pname
== "!=" then
2298 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2299 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2301 else if pname
== "<" then
2302 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2304 else if pname
== ">" then
2305 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2307 else if pname
== "<=" then
2308 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2310 else if pname
== ">=" then
2311 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2313 else if pname
== "to_i" then
2314 v
.ret
(v
.new_expr
("{arguments[0]}-'0'", ret
.as(not null)))
2316 else if pname
== "code_point" then
2317 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2320 else if cname
== "Byte" then
2321 if pname
== "output" then
2322 v
.add
("printf(\"%x\\n\
", {arguments.first});")
2324 else if pname
== "object_id" then
2325 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2327 else if pname
== "+" then
2328 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2330 else if pname
== "-" then
2331 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2333 else if pname
== "unary -" then
2334 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2336 else if pname
== "unary +" then
2339 else if pname
== "*" then
2340 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2342 else if pname
== "/" then
2343 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2345 else if pname
== "%" then
2346 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2348 else if pname
== "==" then
2349 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2351 else if pname
== "!=" then
2352 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2353 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2355 else if pname
== "<" then
2356 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2358 else if pname
== ">" then
2359 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2361 else if pname
== "<=" then
2362 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2364 else if pname
== ">=" then
2365 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2367 else if pname
== ">>" then
2368 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2370 else if pname
== "<<" then
2371 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2373 else if pname
== "&" then
2374 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2376 else if pname
== "to_i" then
2377 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2379 else if pname
== "to_f" then
2380 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2382 else if pname
== "to_i8" then
2383 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2385 else if pname
== "to_i16" then
2386 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2388 else if pname
== "to_u16" then
2389 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2391 else if pname
== "to_i32" then
2392 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2394 else if pname
== "to_u32" then
2395 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2397 else if pname
== "ascii" then
2398 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2401 else if cname
== "Bool" then
2402 if pname
== "output" then
2403 v
.add
("printf({arguments.first}?\"true\\n\
":\"false\\n\
");")
2405 else if pname
== "object_id" then
2406 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2408 else if pname
== "==" then
2409 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2411 else if pname
== "!=" then
2412 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2413 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2416 else if cname
== "Float" then
2417 if pname
== "output" then
2418 v
.add
("printf(\"%f\\n\
", {arguments.first});")
2420 else if pname
== "object_id" then
2421 v
.ret
(v
.new_expr
("(double){arguments.first}", ret
.as(not null)))
2423 else if pname
== "+" then
2424 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2426 else if pname
== "-" then
2427 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2429 else if pname
== "unary -" then
2430 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2432 else if pname
== "unary +" then
2435 else if pname
== "succ" then
2436 v
.ret
(v
.new_expr
("{arguments[0]}+1", ret
.as(not null)))
2438 else if pname
== "prec" then
2439 v
.ret
(v
.new_expr
("{arguments[0]}-1", ret
.as(not null)))
2441 else if pname
== "*" then
2442 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2444 else if pname
== "/" then
2445 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2447 else if pname
== "==" then
2448 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2450 else if pname
== "!=" then
2451 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2452 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2454 else if pname
== "<" then
2455 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2457 else if pname
== ">" then
2458 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2460 else if pname
== "<=" then
2461 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2463 else if pname
== ">=" then
2464 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2466 else if pname
== "to_i" then
2467 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2469 else if pname
== "to_b" then
2470 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2472 else if pname
== "to_i8" then
2473 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2475 else if pname
== "to_i16" then
2476 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2478 else if pname
== "to_u16" then
2479 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2481 else if pname
== "to_i32" then
2482 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2484 else if pname
== "to_u32" then
2485 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2488 else if cname
== "NativeString" then
2489 if pname
== "[]" then
2490 v
.ret
(v
.new_expr
("(unsigned char)((int){arguments[0]}[{arguments[1]}])", ret
.as(not null)))
2492 else if pname
== "[]=" then
2493 v
.add
("{arguments[0]}[{arguments[1]}]=(unsigned char){arguments[2]};")
2495 else if pname
== "copy_to" then
2496 v
.add
("memmove({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
2498 else if pname
== "atoi" then
2499 v
.ret
(v
.new_expr
("atoi({arguments[0]});", ret
.as(not null)))
2501 else if pname
== "fast_cstring" then
2502 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2504 else if pname
== "==" then
2505 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2507 else if pname
== "!=" then
2508 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2509 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2511 else if pname
== "new" then
2512 v
.ret
(v
.new_expr
("(char*)nit_alloc({arguments[1]})", ret
.as(not null)))
2514 else if pname
== "fetch_4_chars" then
2515 v
.ret
(v
.new_expr
("(long)*((uint32_t*)({arguments[0]} + {arguments[1]}))", ret
.as(not null)))
2517 else if pname
== "fetch_4_hchars" then
2518 v
.ret
(v
.new_expr
("(long)be32toh(*((uint32_t*)({arguments[0]} + {arguments[1]})))", ret
.as(not null)))
2521 else if cname
== "NativeArray" then
2522 return v
.native_array_def
(pname
, ret
, arguments
)
2523 else if cname
== "Int8" then
2524 if pname
== "output" then
2525 v
.add
("printf(\"%\
"PRIi8 \"\\n\
", {arguments.first});")
2527 else if pname
== "object_id" then
2528 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2530 else if pname
== "+" then
2531 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2533 else if pname
== "-" then
2534 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2536 else if pname
== "unary -" then
2537 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2539 else if pname
== "unary +" then
2542 else if pname
== "*" then
2543 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2545 else if pname
== "/" then
2546 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2548 else if pname
== "%" then
2549 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2551 else if pname
== "<<" then
2552 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2554 else if pname
== ">>" then
2555 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2557 else if pname
== "==" then
2558 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2560 else if pname
== "!=" then
2561 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2562 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2564 else if pname
== "<" then
2565 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2567 else if pname
== ">" then
2568 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2570 else if pname
== "<=" then
2571 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2573 else if pname
== ">=" then
2574 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2576 else if pname
== "to_i" then
2577 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2579 else if pname
== "to_b" then
2580 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2582 else if pname
== "to_i16" then
2583 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2585 else if pname
== "to_u16" then
2586 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2588 else if pname
== "to_i32" then
2589 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2591 else if pname
== "to_u32" then
2592 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2594 else if pname
== "to_f" then
2595 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2597 else if pname
== "&" then
2598 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2600 else if pname
== "|" then
2601 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2603 else if pname
== "^" then
2604 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2606 else if pname
== "unary ~" then
2607 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2610 else if cname
== "Int16" then
2611 if pname
== "output" then
2612 v
.add
("printf(\"%\
"PRIi16 \"\\n\
", {arguments.first});")
2614 else if pname
== "object_id" then
2615 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2617 else if pname
== "+" then
2618 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2620 else if pname
== "-" then
2621 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2623 else if pname
== "unary -" then
2624 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2626 else if pname
== "unary +" then
2629 else if pname
== "*" then
2630 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2632 else if pname
== "/" then
2633 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2635 else if pname
== "%" then
2636 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2638 else if pname
== "<<" then
2639 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2641 else if pname
== ">>" then
2642 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2644 else if pname
== "==" then
2645 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2647 else if pname
== "!=" then
2648 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2649 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2651 else if pname
== "<" then
2652 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2654 else if pname
== ">" then
2655 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2657 else if pname
== "<=" then
2658 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2660 else if pname
== ">=" then
2661 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2663 else if pname
== "to_i" then
2664 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2666 else if pname
== "to_b" then
2667 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2669 else if pname
== "to_i8" then
2670 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2672 else if pname
== "to_u16" then
2673 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2675 else if pname
== "to_i32" then
2676 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2678 else if pname
== "to_u32" then
2679 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2681 else if pname
== "to_f" then
2682 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2684 else if pname
== "&" then
2685 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2687 else if pname
== "|" then
2688 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2690 else if pname
== "^" then
2691 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2693 else if pname
== "unary ~" then
2694 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2697 else if cname
== "UInt16" then
2698 if pname
== "output" then
2699 v
.add
("printf(\"%\
"PRIu16 \"\\n\
", {arguments.first});")
2701 else if pname
== "object_id" then
2702 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2704 else if pname
== "+" then
2705 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2707 else if pname
== "-" then
2708 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2710 else if pname
== "unary -" then
2711 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2713 else if pname
== "unary +" then
2716 else if pname
== "*" then
2717 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2719 else if pname
== "/" then
2720 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2722 else if pname
== "%" then
2723 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2725 else if pname
== "<<" then
2726 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2728 else if pname
== ">>" then
2729 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2731 else if pname
== "==" then
2732 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2734 else if pname
== "!=" then
2735 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2736 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2738 else if pname
== "<" then
2739 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2741 else if pname
== ">" then
2742 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2744 else if pname
== "<=" then
2745 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2747 else if pname
== ">=" then
2748 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2750 else if pname
== "to_i" then
2751 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2753 else if pname
== "to_b" then
2754 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2756 else if pname
== "to_i8" then
2757 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2759 else if pname
== "to_i16" then
2760 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2762 else if pname
== "to_i32" then
2763 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2765 else if pname
== "to_u32" then
2766 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2768 else if pname
== "to_f" then
2769 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2771 else if pname
== "&" then
2772 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2774 else if pname
== "|" then
2775 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2777 else if pname
== "^" then
2778 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2780 else if pname
== "unary ~" then
2781 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2784 else if cname
== "Int32" then
2785 if pname
== "output" then
2786 v
.add
("printf(\"%\
"PRIi32 \"\\n\
", {arguments.first});")
2788 else if pname
== "object_id" then
2789 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2791 else if pname
== "+" then
2792 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2794 else if pname
== "-" then
2795 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2797 else if pname
== "unary -" then
2798 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2800 else if pname
== "unary +" then
2803 else if pname
== "*" then
2804 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2806 else if pname
== "/" then
2807 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2809 else if pname
== "%" then
2810 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2812 else if pname
== "<<" then
2813 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2815 else if pname
== ">>" then
2816 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2818 else if pname
== "==" then
2819 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2821 else if pname
== "!=" then
2822 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2823 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2825 else if pname
== "<" then
2826 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2828 else if pname
== ">" then
2829 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2831 else if pname
== "<=" then
2832 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2834 else if pname
== ">=" then
2835 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2837 else if pname
== "to_i" then
2838 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2840 else if pname
== "to_b" then
2841 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2843 else if pname
== "to_i8" then
2844 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2846 else if pname
== "to_i16" then
2847 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2849 else if pname
== "to_u16" then
2850 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2852 else if pname
== "to_u32" then
2853 v
.ret
(v
.new_expr
("(uint32_t){arguments[0]}", ret
.as(not null)))
2855 else if pname
== "to_f" then
2856 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2858 else if pname
== "&" then
2859 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2861 else if pname
== "|" then
2862 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2864 else if pname
== "^" then
2865 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2867 else if pname
== "unary ~" then
2868 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2871 else if cname
== "UInt32" then
2872 if pname
== "output" then
2873 v
.add
("printf(\"%\
"PRIu32 \"\\n\
", {arguments.first});")
2875 else if pname
== "object_id" then
2876 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2878 else if pname
== "+" then
2879 v
.ret
(v
.new_expr
("{arguments[0]} + {arguments[1]}", ret
.as(not null)))
2881 else if pname
== "-" then
2882 v
.ret
(v
.new_expr
("{arguments[0]} - {arguments[1]}", ret
.as(not null)))
2884 else if pname
== "unary -" then
2885 v
.ret
(v
.new_expr
("-{arguments[0]}", ret
.as(not null)))
2887 else if pname
== "unary +" then
2890 else if pname
== "*" then
2891 v
.ret
(v
.new_expr
("{arguments[0]} * {arguments[1]}", ret
.as(not null)))
2893 else if pname
== "/" then
2894 v
.ret
(v
.new_expr
("{arguments[0]} / {arguments[1]}", ret
.as(not null)))
2896 else if pname
== "%" then
2897 v
.ret
(v
.new_expr
("{arguments[0]} % {arguments[1]}", ret
.as(not null)))
2899 else if pname
== "<<" then
2900 v
.ret
(v
.new_expr
("{arguments[0]} << {arguments[1]}", ret
.as(not null)))
2902 else if pname
== ">>" then
2903 v
.ret
(v
.new_expr
("{arguments[0]} >> {arguments[1]}", ret
.as(not null)))
2905 else if pname
== "==" then
2906 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2908 else if pname
== "!=" then
2909 var res
= v
.equal_test
(arguments
[0], arguments
[1])
2910 v
.ret
(v
.new_expr
("!{res}", ret
.as(not null)))
2912 else if pname
== "<" then
2913 v
.ret
(v
.new_expr
("{arguments[0]} < {arguments[1]}", ret
.as(not null)))
2915 else if pname
== ">" then
2916 v
.ret
(v
.new_expr
("{arguments[0]} > {arguments[1]}", ret
.as(not null)))
2918 else if pname
== "<=" then
2919 v
.ret
(v
.new_expr
("{arguments[0]} <= {arguments[1]}", ret
.as(not null)))
2921 else if pname
== ">=" then
2922 v
.ret
(v
.new_expr
("{arguments[0]} >= {arguments[1]}", ret
.as(not null)))
2924 else if pname
== "to_i" then
2925 v
.ret
(v
.new_expr
("(long){arguments[0]}", ret
.as(not null)))
2927 else if pname
== "to_b" then
2928 v
.ret
(v
.new_expr
("(unsigned char){arguments[0]}", ret
.as(not null)))
2930 else if pname
== "to_i8" then
2931 v
.ret
(v
.new_expr
("(int8_t){arguments[0]}", ret
.as(not null)))
2933 else if pname
== "to_i16" then
2934 v
.ret
(v
.new_expr
("(int16_t){arguments[0]}", ret
.as(not null)))
2936 else if pname
== "to_u16" then
2937 v
.ret
(v
.new_expr
("(uint16_t){arguments[0]}", ret
.as(not null)))
2939 else if pname
== "to_i32" then
2940 v
.ret
(v
.new_expr
("(int32_t){arguments[0]}", ret
.as(not null)))
2942 else if pname
== "to_f" then
2943 v
.ret
(v
.new_expr
("(double){arguments[0]}", ret
.as(not null)))
2945 else if pname
== "&" then
2946 v
.ret
(v
.new_expr
("{arguments[0]} & {arguments[1]}", ret
.as(not null)))
2948 else if pname
== "|" then
2949 v
.ret
(v
.new_expr
("{arguments[0]} | {arguments[1]}", ret
.as(not null)))
2951 else if pname
== "^" then
2952 v
.ret
(v
.new_expr
("{arguments[0]} ^ {arguments[1]}", ret
.as(not null)))
2954 else if pname
== "unary ~" then
2955 v
.ret
(v
.new_expr
("~{arguments[0]}", ret
.as(not null)))
2959 if pname
== "exit" then
2960 v
.add
("exit({arguments[1]});")
2962 else if pname
== "sys" then
2963 v
.ret
(v
.new_expr
("glob_sys", ret
.as(not null)))
2965 else if pname
== "calloc_string" then
2966 v
.ret
(v
.new_expr
("(char*)nit_alloc({arguments[1]})", ret
.as(not null)))
2968 else if pname
== "calloc_array" then
2969 v
.calloc_array
(ret
.as(not null), arguments
)
2971 else if pname
== "object_id" then
2972 v
.ret
(v
.new_expr
("(long){arguments.first}", ret
.as(not null)))
2974 else if pname
== "is_same_type" then
2975 v
.ret
(v
.is_same_type_test
(arguments
[0], arguments
[1]))
2977 else if pname
== "is_same_instance" then
2978 v
.ret
(v
.equal_test
(arguments
[0], arguments
[1]))
2980 else if pname
== "output_class_name" then
2981 var nat
= v
.class_name_string
(arguments
.first
)
2982 v
.add
("printf(\"%s\\n\
", {nat});")
2984 else if pname
== "native_class_name" then
2985 var nat
= v
.class_name_string
(arguments
.first
)
2986 v
.ret
(v
.new_expr
("(char*){nat}", ret
.as(not null)))
2988 else if pname
== "force_garbage_collection" then
2989 v
.add
("nit_gcollect();")
2991 else if pname
== "native_argc" then
2992 v
.ret
(v
.new_expr
("glob_argc", ret
.as(not null)))
2994 else if pname
== "native_argv" then
2995 v
.ret
(v
.new_expr
("glob_argv[{arguments[1]}]", ret
.as(not null)))
3001 # Compile an extern method
3002 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3003 fun compile_externmeth_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3006 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3007 if at
!= null and at
.n_args
.length
== 1 then
3008 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3009 if externname
== null then return false
3013 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3014 var res
: nullable RuntimeVariable = null
3015 var ret
= mpropdef
.msignature
.return_mtype
3017 ret
= v
.resolve_for
(ret
, arguments
.first
)
3018 res
= v
.new_var_extern
(ret
)
3020 v
.adapt_signature
(mpropdef
, arguments
)
3021 v
.unbox_signature_extern
(mpropdef
, arguments
)
3024 v
.add
("{externname}({arguments.join(", ")});")
3026 v
.add
("{res} = {externname}({arguments.join(", ")});")
3027 res
= v
.box_extern
(res
, ret
.as(not null))
3033 # Compile an extern factory
3034 # Return `true` if the compilation was successful, `false` if a fall-back is needed
3035 fun compile_externinit_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable]): Bool
3038 var at
= self.get_single_annotation
("extern", v
.compiler
.modelbuilder
)
3040 externname
= at
.arg_as_string
(v
.compiler
.modelbuilder
)
3041 if externname
== null then return false
3045 v
.add_extern
(mpropdef
.mclassdef
.mmodule
)
3046 v
.adapt_signature
(mpropdef
, arguments
)
3047 v
.unbox_signature_extern
(mpropdef
, arguments
)
3048 var ret
= arguments
.first
.mtype
3049 var res
= v
.new_var_extern
(ret
)
3053 v
.add
("{res} = {externname}({arguments.join(", ")});")
3054 res
= v
.box_extern
(res
, ret
)
3060 redef class AAttrPropdef
3061 redef fun can_inline
: Bool do return not is_lazy
3063 redef fun compile_to_c
(v
, mpropdef
, arguments
)
3065 if mpropdef
== mreadpropdef
then
3066 assert arguments
.length
== 1
3067 var recv
= arguments
.first
3071 var ret
= self.mtype
3072 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3073 var guard
= self.mlazypropdef
.mproperty
3075 set
= v
.isset_attribute
(self.mpropdef
.mproperty
, recv
)
3077 set
= v
.read_attribute
(guard
, recv
)
3079 v
.add
("if(likely({set})) \{")
3080 res
= v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3083 var value
= evaluate_expr
(v
, recv
)
3085 v
.assign
(res
, value
)
3087 var true_v
= v
.bool_instance
(true)
3088 v
.write_attribute
(guard
, arguments
.first
, true_v
)
3092 res
= v
.read_attribute
(self.mpropdef
.mproperty
, arguments
.first
)
3094 v
.assign
(v
.frame
.returnvar
.as(not null), res
)
3095 else if mpropdef
== mwritepropdef
then
3096 assert arguments
.length
== 2
3097 var recv
= arguments
.first
3098 var arg
= arguments
[1]
3100 var value
= v
.new_var
(self.mpropdef
.static_mtype
.as(not null))
3101 v
.add
("if ({arg} == NULL) \{")
3102 v
.assign
(value
, evaluate_expr
(v
, recv
))
3104 v
.assign
(value
, arg
)
3108 v
.write_attribute
(self.mpropdef
.mproperty
, arguments
.first
, arg
)
3110 var ret
= self.mtype
3111 var useiset
= not ret
.is_c_primitive
and not ret
isa MNullableType
3113 v
.write_attribute
(self.mlazypropdef
.mproperty
, arguments
.first
, v
.bool_instance
(true))
3121 fun init_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3123 if has_value
and not is_lazy
and not n_expr
isa ANullExpr then evaluate_expr
(v
, recv
)
3126 # Evaluate, store and return the default value of the attribute
3127 private fun evaluate_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable): RuntimeVariable
3129 var oldnode
= v
.current_node
3130 v
.current_node
= self
3131 var old_frame
= v
.frame
3132 var frame
= new StaticFrame(v
, self.mreadpropdef
.as(not null), recv
.mcasttype
.undecorate
.as(MClassType), [recv
])
3136 var mtype
= self.mtype
3137 assert mtype
!= null
3139 var nexpr
= self.n_expr
3140 var nblock
= self.n_block
3141 if nexpr
!= null then
3142 value
= v
.expr
(nexpr
, mtype
)
3143 else if nblock
!= null then
3144 value
= v
.new_var
(mtype
)
3145 frame
.returnvar
= value
3146 frame
.returnlabel
= v
.get_name
("RET_LABEL")
3149 v
.add
("{frame.returnlabel.as(not null)}:(void)0;")
3155 v
.write_attribute
(self.mpropdef
.mproperty
, recv
, value
)
3158 v
.current_node
= oldnode
3163 fun check_expr
(v
: AbstractCompilerVisitor, recv
: RuntimeVariable)
3165 var nexpr
= self.n_expr
3166 if nexpr
!= null then return
3168 var oldnode
= v
.current_node
3169 v
.current_node
= self
3170 var old_frame
= v
.frame
3171 var frame
= new StaticFrame(v
, self.mpropdef
.as(not null), recv
.mtype
.as(MClassType), [recv
])
3173 # Force read to check the initialization
3174 v
.read_attribute
(self.mpropdef
.mproperty
, recv
)
3176 v
.current_node
= oldnode
3180 redef class AClassdef
3181 private fun compile_to_c
(v
: AbstractCompilerVisitor, mpropdef
: MMethodDef, arguments
: Array[RuntimeVariable])
3183 if mpropdef
.mproperty
.is_root_init
then
3184 assert arguments
.length
== 1
3185 if not mpropdef
.is_intro
then
3186 v
.supercall
(mpropdef
, arguments
.first
.mtype
.as(MClassType), arguments
)
3196 # Try to compile self as an expression
3197 # Do not call this method directly, use `v.expr` instead
3198 private fun expr
(v
: AbstractCompilerVisitor): nullable RuntimeVariable
3200 v
.add
("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name}:{location.to_s}\\n\
");")
3201 var mtype
= self.mtype
3202 if mtype
== null then
3205 var res
= v
.new_var
(mtype
)
3206 v
.add
("/* {res} = NOT YET {class_name} */")
3211 # Try to compile self as a statement
3212 # Do not call this method directly, use `v.stmt` instead
3213 private fun stmt
(v
: AbstractCompilerVisitor)
3219 redef class ABlockExpr
3222 for e
in self.n_expr
do v
.stmt
(e
)
3226 var last
= self.n_expr
.last
3227 for e
in self.n_expr
do
3228 if e
== last
then break
3231 return v
.expr
(last
, null)
3235 redef class AVardeclExpr
3238 var variable
= self.variable
.as(not null)
3239 var ne
= self.n_expr
3241 var i
= v
.expr
(ne
, variable
.declared_type
)
3242 v
.assign
(v
.variable
(variable
), i
)
3247 redef class AVarExpr
3250 var res
= v
.variable
(self.variable
.as(not null))
3251 var mtype
= self.mtype
.as(not null)
3252 return v
.autoadapt
(res
, mtype
)
3256 redef class AVarAssignExpr
3259 var variable
= self.variable
.as(not null)
3260 var i
= v
.expr
(self.n_value
, variable
.declared_type
)
3261 v
.assign
(v
.variable
(variable
), i
)
3266 redef class AVarReassignExpr
3269 var variable
= self.variable
.as(not null)
3270 var vari
= v
.variable
(variable
)
3271 var value
= v
.expr
(self.n_value
, variable
.declared_type
)
3272 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [vari
, value
])
3274 v
.assign
(v
.variable
(variable
), res
)
3278 redef class ASelfExpr
3279 redef fun expr
(v
) do return v
.frame
.arguments
.first
3282 redef class AImplicitSelfExpr
3283 redef fun expr
(v
) do
3284 if not is_sys
then return super
3285 return v
.new_expr
("glob_sys", mtype
.as(not null))
3289 redef class AEscapeExpr
3290 redef fun stmt
(v
) do v
.add
("goto BREAK_{v.escapemark_name(self.escapemark)};")
3293 redef class AReturnExpr
3296 var nexpr
= self.n_expr
3297 if nexpr
!= null then
3298 var returnvar
= v
.frame
.returnvar
.as(not null)
3299 var i
= v
.expr
(nexpr
, returnvar
.mtype
)
3300 v
.assign
(returnvar
, i
)
3302 v
.add
("goto {v.frame.returnlabel.as(not null)};")
3306 redef class AAbortExpr
3307 redef fun stmt
(v
) do v
.add_abort
("Aborted")
3313 var cond
= v
.expr_bool
(self.n_expr
)
3314 v
.add
("if ({cond})\{")
3323 var res
= v
.new_var
(self.mtype
.as(not null))
3324 var cond
= v
.expr_bool
(self.n_expr
)
3325 v
.add
("if ({cond})\{")
3326 v
.assign
(res
, v
.expr
(self.n_then
.as(not null), null))
3328 v
.assign
(res
, v
.expr
(self.n_else
.as(not null), null))
3334 redef class AIfexprExpr
3337 var res
= v
.new_var
(self.mtype
.as(not null))
3338 var cond
= v
.expr_bool
(self.n_expr
)
3339 v
.add
("if ({cond})\{")
3340 v
.assign
(res
, v
.expr
(self.n_then
, null))
3342 v
.assign
(res
, v
.expr
(self.n_else
, null))
3351 v
.stmt
(self.n_block
)
3352 v
.add_escape_label
(break_mark
)
3356 redef class AWhileExpr
3360 var cond
= v
.expr_bool
(self.n_expr
)
3361 v
.add
("if (!{cond}) break;")
3362 v
.stmt
(self.n_block
)
3363 v
.add_escape_label
(continue_mark
)
3365 v
.add_escape_label
(break_mark
)
3369 redef class ALoopExpr
3373 v
.stmt
(self.n_block
)
3374 v
.add_escape_label
(continue_mark
)
3376 v
.add_escape_label
(break_mark
)
3380 redef class AForExpr
3383 for g
in n_groups
do
3384 var cl
= v
.expr
(g
.n_expr
, null)
3385 var it_meth
= g
.method_iterator
3386 assert it_meth
!= null
3387 var it
= v
.compile_callsite
(it_meth
, [cl
])
3392 for g
in n_groups
do
3394 var isok_meth
= g
.method_is_ok
3395 assert isok_meth
!= null
3396 var ok
= v
.compile_callsite
(isok_meth
, [it
])
3398 v
.add
("if(!{ok}) break;")
3399 if g
.variables
.length
== 1 then
3400 var item_meth
= g
.method_item
3401 assert item_meth
!= null
3402 var i
= v
.compile_callsite
(item_meth
, [it
])
3404 v
.assign
(v
.variable
(g
.variables
.first
), i
)
3405 else if g
.variables
.length
== 2 then
3406 var key_meth
= g
.method_key
3407 assert key_meth
!= null
3408 var i
= v
.compile_callsite
(key_meth
, [it
])
3410 v
.assign
(v
.variable
(g
.variables
[0]), i
)
3411 var item_meth
= g
.method_item
3412 assert item_meth
!= null
3413 i
= v
.compile_callsite
(item_meth
, [it
])
3415 v
.assign
(v
.variable
(g
.variables
[1]), i
)
3420 v
.stmt
(self.n_block
)
3421 v
.add_escape_label
(continue_mark
)
3422 for g
in n_groups
do
3423 var next_meth
= g
.method_next
3424 assert next_meth
!= null
3425 v
.compile_callsite
(next_meth
, [g
.it
])
3428 v
.add_escape_label
(break_mark
)
3430 for g
in n_groups
do
3431 var method_finish
= g
.method_finish
3432 if method_finish
!= null then
3433 # TODO: Find a way to call this also in long escape (e.g. return)
3434 v
.compile_callsite
(method_finish
, [g
.it
])
3440 redef class AForGroup
3441 # C variable representing the iterator
3442 private var it
: RuntimeVariable is noinit
3445 redef class AAssertExpr
3448 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return
3450 var cond
= v
.expr_bool
(self.n_expr
)
3451 v
.add
("if (unlikely(!{cond})) \{")
3455 v
.add_abort
("Assert '{nid.text}' failed")
3457 v
.add_abort
("Assert failed")
3466 var res
= v
.new_var
(self.mtype
.as(not null))
3467 var i1
= v
.expr_bool
(self.n_expr
)
3468 v
.add
("if ({i1}) \{")
3471 var i2
= v
.expr_bool
(self.n_expr2
)
3472 v
.add
("{res} = {i2};")
3478 redef class AImpliesExpr
3481 var res
= v
.new_var
(self.mtype
.as(not null))
3482 var i1
= v
.expr_bool
(self.n_expr
)
3483 v
.add
("if (!{i1}) \{")
3486 var i2
= v
.expr_bool
(self.n_expr2
)
3487 v
.add
("{res} = {i2};")
3493 redef class AAndExpr
3496 var res
= v
.new_var
(self.mtype
.as(not null))
3497 var i1
= v
.expr_bool
(self.n_expr
)
3498 v
.add
("if (!{i1}) \{")
3501 var i2
= v
.expr_bool
(self.n_expr2
)
3502 v
.add
("{res} = {i2};")
3508 redef class ANotExpr
3511 var cond
= v
.expr_bool
(self.n_expr
)
3512 return v
.new_expr
("!{cond}", self.mtype
.as(not null))
3516 redef class AOrElseExpr
3519 var res
= v
.new_var
(self.mtype
.as(not null))
3520 var i1
= v
.expr
(self.n_expr
, null)
3521 v
.add
("if ({i1}!=NULL) \{")
3524 var i2
= v
.expr
(self.n_expr2
, null)
3531 redef class AIntegerExpr
3532 redef fun expr
(v
) do
3533 if value
isa Int then return v
.int_instance
(value
.as(Int))
3534 if value
isa Byte then return v
.byte_instance
(value
.as(Byte))
3535 if value
isa Int8 then return v
.int8_instance
(value
.as(Int8))
3536 if value
isa Int16 then return v
.int16_instance
(value
.as(Int16))
3537 if value
isa UInt16 then return v
.uint16_instance
(value
.as(UInt16))
3538 if value
isa Int32 then return v
.int32_instance
(value
.as(Int32))
3539 if value
isa UInt32 then return v
.uint32_instance
(value
.as(UInt32))
3540 # Should never happen
3545 redef class AFloatExpr
3546 redef fun expr
(v
) do return v
.float_instance
("{self.n_float.text}") # FIXME use value, not n_float
3549 redef class ACharExpr
3550 redef fun expr
(v
) do return v
.char_instance
(self.value
.as(not null))
3553 redef class AArrayExpr
3556 var mtype
= self.element_mtype
.as(not null)
3557 var array
= new Array[RuntimeVariable]
3558 var res
= v
.array_instance
(array
, mtype
)
3560 var old_comprehension
= v
.frame
.comprehension
3561 v
.frame
.comprehension
= res
3562 for nexpr
in self.n_exprs
do
3565 v
.frame
.comprehension
= old_comprehension
3571 redef class AStringFormExpr
3572 redef fun expr
(v
) do return v
.string_instance
(self.value
.as(not null))
3575 redef class ASuperstringExpr
3578 var type_string
= mtype
.as(not null)
3580 # Collect elements of the superstring
3581 var array
= new Array[AExpr]
3582 for ne
in self.n_exprs
do
3583 # Drop literal empty string.
3584 # They appears in things like "{a}" that is ["", a, ""]
3585 if ne
isa AStringFormExpr and ne
.value
== "" then continue # skip empty sub-strings
3589 # Store the allocated native array in a static variable
3591 var varonce
= v
.get_name
("varonce")
3592 v
.add
("if (unlikely({varonce}==NULL)) \{")
3594 # The native array that will contains the elements to_s-ized.
3595 # For fast concatenation.
3596 var a
= v
.native_array_instance
(type_string
, v
.int_instance
(array
.length
))
3598 v
.add_decl
("static {a.mtype.ctype} {varonce};")
3600 # Pre-fill the array with the literal string parts.
3601 # So they do not need to be filled again when reused
3602 for i
in [0..array
.length
[ do
3604 if not ne
isa AStringFormExpr then continue
3605 var e
= v
.expr
(ne
, null)
3606 v
.native_array_set
(a
, i
, e
)
3610 # Take the native-array from the store.
3611 # The point is to prevent that some recursive execution use (and corrupt) the same native array
3612 # WARNING: not thread safe! (FIXME?)
3613 v
.add
("{a} = {varonce};")
3614 v
.add
("{varonce} = NULL;")
3617 # Stringify the elements and put them in the native array
3618 var to_s_method
= v
.get_property
("to_s", v
.object_type
)
3619 for i
in [0..array
.length
[ do
3621 if ne
isa AStringFormExpr then continue
3622 var e
= v
.expr
(ne
, null)
3623 # Skip the `to_s` if the element is already a String
3624 if not e
.mcasttype
.is_subtype
(v
.compiler
.mainmodule
, null, type_string
) then
3625 e
= v
.send
(to_s_method
, [e
]).as(not null)
3627 v
.native_array_set
(a
, i
, e
)
3630 # Fast join the native string to get the result
3631 var res
= v
.send
(v
.get_property
("native_to_s", a
.mtype
), [a
])
3633 # We finish to work with the native array,
3634 # so store it so that it can be reused
3635 v
.add
("{varonce} = {a};")
3640 redef class ACrangeExpr
3643 var i1
= v
.expr
(self.n_expr
, null)
3644 var i2
= v
.expr
(self.n_expr2
, null)
3645 var mtype
= self.mtype
.as(MClassType)
3646 var res
= v
.init_instance
(mtype
)
3647 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3652 redef class AOrangeExpr
3655 var i1
= v
.expr
(self.n_expr
, null)
3656 var i2
= v
.expr
(self.n_expr2
, null)
3657 var mtype
= self.mtype
.as(MClassType)
3658 var res
= v
.init_instance
(mtype
)
3659 v
.compile_callsite
(init_callsite
.as(not null), [res
, i1
, i2
])
3664 redef class ATrueExpr
3665 redef fun expr
(v
) do return v
.bool_instance
(true)
3668 redef class AFalseExpr
3669 redef fun expr
(v
) do return v
.bool_instance
(false)
3672 redef class ANullExpr
3673 redef fun expr
(v
) do return v
.null_instance
3676 redef class AIsaExpr
3679 var i
= v
.expr
(self.n_expr
, null)
3680 var cast_type
= self.cast_type
3681 if cast_type
== null then return null # no-no on broken node
3682 return v
.type_test
(i
, cast_type
, "isa")
3686 redef class AAsCastExpr
3689 var i
= v
.expr
(self.n_expr
, null)
3690 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3692 v
.add_cast
(i
, self.mtype
.as(not null), "as")
3697 redef class AAsNotnullExpr
3700 var i
= v
.expr
(self.n_expr
, null)
3701 if v
.compiler
.modelbuilder
.toolcontext
.opt_no_check_assert
.value
then return i
3703 if i
.mtype
.is_c_primitive
then return i
3705 v
.add
("if (unlikely({i} == NULL)) \{")
3706 v
.add_abort
("Cast failed")
3712 redef class AParExpr
3713 redef fun expr
(v
) do return v
.expr
(self.n_expr
, null)
3716 redef class AOnceExpr
3719 var mtype
= self.mtype
.as(not null)
3720 var name
= v
.get_name
("varonce")
3721 var guard
= v
.get_name
(name
+ "_guard")
3722 v
.add_decl
("static {mtype.ctype} {name};")
3723 v
.add_decl
("static int {guard};")
3724 var res
= v
.new_var
(mtype
)
3725 v
.add
("if (likely({guard})) \{")
3726 v
.add
("{res} = {name};")
3728 var i
= v
.expr
(self.n_expr
, mtype
)
3729 v
.add
("{res} = {i};")
3730 v
.add
("{name} = {res};")
3731 v
.add
("{guard} = 1;")
3737 redef class ASendExpr
3740 var recv
= v
.expr
(self.n_expr
, null)
3741 var callsite
= self.callsite
.as(not null)
3742 if callsite
.is_broken
then return null
3743 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3744 return v
.compile_callsite
(callsite
, args
)
3748 redef class ASendReassignFormExpr
3751 var recv
= v
.expr
(self.n_expr
, null)
3752 var callsite
= self.callsite
.as(not null)
3753 if callsite
.is_broken
then return
3754 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.raw_arguments
)
3756 var value
= v
.expr
(self.n_value
, null)
3758 var left
= v
.compile_callsite
(callsite
, args
)
3761 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [left
, value
])
3765 v
.compile_callsite
(self.write_callsite
.as(not null), args
)
3769 redef class ASuperExpr
3772 var frame
= v
.frame
.as(not null)
3773 var recv
= frame
.arguments
.first
3775 var callsite
= self.callsite
3776 if callsite
!= null then
3777 if callsite
.is_broken
then return null
3780 if self.n_args
.n_exprs
.is_empty
then
3781 # Add automatic arguments for the super init call
3783 for i
in [0..callsite
.msignature
.arity
[ do
3784 args
.add
(frame
.arguments
[i
+1])
3787 args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3791 var res
= v
.compile_callsite
(callsite
, args
)
3795 var mpropdef
= self.mpropdef
.as(not null)
3798 if self.n_args
.n_exprs
.is_empty
then
3799 args
= frame
.arguments
3801 args
= v
.varargize
(mpropdef
, signaturemap
, recv
, self.n_args
.n_exprs
)
3804 # Standard call-next-method
3805 return v
.supercall
(mpropdef
, recv
.mtype
.as(MClassType), args
)
3809 redef class ANewExpr
3812 var mtype
= self.recvtype
3813 assert mtype
!= null
3815 if mtype
.mclass
.name
== "NativeArray" then
3816 assert self.n_args
.n_exprs
.length
== 1
3817 var l
= v
.expr
(self.n_args
.n_exprs
.first
, null)
3818 assert mtype
isa MGenericType
3819 var elttype
= mtype
.arguments
.first
3820 return v
.native_array_instance
(elttype
, l
)
3823 var recv
= v
.init_instance_or_extern
(mtype
)
3825 var callsite
= self.callsite
3826 if callsite
== null then return recv
3827 if callsite
.is_broken
then return null
3829 var args
= v
.varargize
(callsite
.mpropdef
, callsite
.signaturemap
, recv
, self.n_args
.n_exprs
)
3830 var res2
= v
.compile_callsite
(callsite
, args
)
3831 if res2
!= null then
3832 #self.debug("got {res2} from {mproperty}. drop {recv}")
3839 redef class AAttrExpr
3842 var recv
= v
.expr
(self.n_expr
, null)
3843 var mproperty
= self.mproperty
.as(not null)
3844 return v
.read_attribute
(mproperty
, recv
)
3848 redef class AAttrAssignExpr
3851 var recv
= v
.expr
(self.n_expr
, null)
3852 var i
= v
.expr
(self.n_value
, null)
3853 var mproperty
= self.mproperty
.as(not null)
3854 v
.write_attribute
(mproperty
, recv
, i
)
3859 redef class AAttrReassignExpr
3862 var recv
= v
.expr
(self.n_expr
, null)
3863 var value
= v
.expr
(self.n_value
, null)
3864 var mproperty
= self.mproperty
.as(not null)
3865 var attr
= v
.read_attribute
(mproperty
, recv
)
3866 var res
= v
.compile_callsite
(self.reassign_callsite
.as(not null), [attr
, value
])
3868 v
.write_attribute
(mproperty
, recv
, res
)
3872 redef class AIssetAttrExpr
3875 var recv
= v
.expr
(self.n_expr
, null)
3876 var mproperty
= self.mproperty
.as(not null)
3877 return v
.isset_attribute
(mproperty
, recv
)
3881 redef class AVarargExpr
3884 return v
.expr
(self.n_expr
, null)
3888 redef class ANamedargExpr
3891 return v
.expr
(self.n_expr
, null)
3895 redef class ADebugTypeExpr
3904 redef class Array[E
]
3905 # Return a new `Array` with the elements only contened in self and not in `o`
3906 fun -(o
: Array[E
]): Array[E
] do
3907 var res
= new Array[E
]
3908 for e
in self do if not o
.has
(e
) then res
.add
(e
)
3914 # All `MProperty` associated to all `MClassDef` of `mclass`
3915 fun properties
(mclass
: MClass): Set[MProperty] do
3916 if not self.properties_cache
.has_key
(mclass
) then
3917 var properties
= new HashSet[MProperty]
3918 var parents
= new Array[MClass]
3919 if self.flatten_mclass_hierarchy
.has
(mclass
) then
3920 parents
.add_all
(mclass
.in_hierarchy
(self).direct_greaters
)
3922 for parent
in parents
do
3923 properties
.add_all
(self.properties
(parent
))
3925 for mclassdef
in mclass
.mclassdefs
do
3926 if not self.in_importation
<= mclassdef
.mmodule
then continue
3927 for mprop
in mclassdef
.intro_mproperties
do
3928 properties
.add
(mprop
)
3931 self.properties_cache
[mclass
] = properties
3933 return properties_cache
[mclass
]
3935 private var properties_cache
: Map[MClass, Set[MProperty]] = new HashMap[MClass, Set[MProperty]]
3937 # Write FFI and nitni results to file
3938 fun finalize_ffi
(c
: AbstractCompiler) do end
3940 # Give requided addinional system libraries (as given to LD_LIBS)
3941 # Note: can return null instead of an empty set
3942 fun collect_linker_libs
: nullable Array[String] do return null
3945 # Create a tool context to handle options and paths
3946 var toolcontext
= new ToolContext
3948 toolcontext
.tooldescription
= "Usage: nitc [OPTION]... file.nit...\nCompiles Nit programs."
3950 # We do not add other options, so process them now!
3951 toolcontext
.process_options
(args
)
3953 # We need a model to collect stufs
3954 var model
= new Model
3955 # An a model builder to parse files
3956 var modelbuilder
= new ModelBuilder(model
, toolcontext
)
3958 var arguments
= toolcontext
.option_context
.rest
3959 if arguments
.length
> 1 and toolcontext
.opt_output
.value
!= null then
3960 print
"Option Error: --output needs a single source file. Do you prefer --dir?"
3964 # Here we load an process all modules passed on the command line
3965 var mmodules
= modelbuilder
.parse
(arguments
)
3967 if mmodules
.is_empty
then toolcontext
.quit
3969 modelbuilder
.run_phases
3971 for mmodule
in mmodules
do
3972 toolcontext
.info
("*** PROCESS {mmodule} ***", 1)
3974 toolcontext
.run_global_phases
(ms
)