# Provides PNaCl support for Nit.
module pnacl is platform
+ import standard
+ intrude import standard::stream
+
-`{
- #include <unistd.h>
- #include <stddef.h>
- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- #include <pthread.h>
+in "C Header" `{
#include "ppapi/c/pp_errors.h"
#include "ppapi/c/ppp.h"
#include "ppapi/c/ppp_instance.h"
#include "ppapi/c/ppp_messaging.h"
#include "ppapi/c/ppb_var_dictionary.h"
#include "ppapi/c/ppb_var_array.h"
+`}
+
+`{
+ #include <unistd.h>
+ #include <stddef.h>
+ #include <stdio.h>
+ #include <string.h>
+ #include <stdlib.h>
+ #include <pthread.h>
#define MAX_DICTIONARY_QUEUE_SIZE 200
#define MAX_MESSAGE_QUEUE_SIZE 10
module abstract_compiler
import literal
- import typing
- import auto_super_init
+ import semantize
import platform
import c_tools
+ private import annotation
# Add compiling options
redef class ToolContext
if f.compiles_to_o_file then ofiles.add(o)
if f.add_to_jar then java_files.add(f)
end
-
+
if not java_files.is_empty then
var jar_file = "{outpath}.jar"
# The main module of the program currently compiled
# Is assigned during the separate compilation
- var mainmodule: MModule writable
+ var mainmodule: MModule is writable
# The real main module of the program
var realmainmodule: MModule
# The modeulbuilder used to know the model and the AST
- var modelbuilder: ModelBuilder protected writable
+ var modelbuilder: ModelBuilder is protected writable
# Is hardening asked? (see --hardening)
fun hardening: Bool do return self.modelbuilder.toolcontext.opt_hardening.value
fun new_visitor: VISITOR is abstract
# Where global declaration are stored (the main .h)
- var header: CodeWriter writable
+ var header: CodeWriter is writable
# Provide a declaration that can be requested (before or latter) by a visitor
fun provide_declaration(key: String, s: String)
end
# Generate the main C function.
+ #
# This function:
- # * allocate the Sys object if it exists
- # * call init if is exists
- # * call main if it exists
+ #
+ # * allocate the Sys object if it exists
+ # * call init if is exists
+ # * call main if it exists
fun compile_main_function
do
var v = self.new_visitor
end
# Display stats about compilation process
+ #
# Metrics used:
- # * type tests against resolved types (`x isa Collection[Animal]`)
- # * type tests against unresolved types (`x isa Collection[E]`)
- # * type tests skipped
- # * type tests total
- # *
+ #
+ # * type tests against resolved types (`x isa Collection[Animal]`)
+ # * type tests against unresolved types (`x isa Collection[E]`)
+ # * type tests skipped
+ # * type tests total
fun display_stats
do
if self.modelbuilder.toolcontext.opt_typing_test_metrics.value then
var compiler: COMPILER
# The current visited AST node
- var current_node: nullable ANode writable = null
+ var current_node: nullable ANode = null is writable
# The current `Frame`
- var frame: nullable Frame writable
+ var frame: nullable Frame is writable
# Alias for self.compiler.mainmodule.object_type
fun object_type: MClassType do return self.compiler.mainmodule.object_type
# Generate a super call from a method definition
fun supercall(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable is abstract
+ # Adapt the arguments of a method according to targetted `MMethodDef`
fun adapt_signature(m: MMethodDef, args: Array[RuntimeVariable]) is abstract
+ # Unbox all the arguments of a method when implemented `extern` or `intern`
+ fun unbox_signature_extern(m: MMethodDef, args: Array[RuntimeVariable]) is abstract
+
# Box or unbox a value to another type iff a C type conversion is needed
# ENSURE: `result.mtype.ctype == mtype.ctype`
fun autobox(value: RuntimeVariable, mtype: MType): RuntimeVariable is abstract
+ # Box extern classes to be used in the generated code
+ fun box_extern(value: RuntimeVariable, mtype: MType): RuntimeVariable is abstract
+
+ # Unbox extern classes to be used in extern code (legacy NI and FFI)
+ fun unbox_extern(value: RuntimeVariable, mtype: MType): RuntimeVariable is abstract
+
# Generate a polymorphic subtype test
fun type_test(value: RuntimeVariable, mtype: MType, tag: String): RuntimeVariable is abstract
private var escapemark_names = new HashMap[EscapeMark, String]
# Return a "const char*" variable associated to the classname of the dynamic type of an object
- # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
+ # NOTE: we do not return a `RuntimeVariable` "NativeString" as the class may not exist in the module/program
fun class_name_string(value: RuntimeVariable): String is abstract
# Variables handling
return res
end
+ # The difference with `new_var` is the C static type of the local variable
+ fun new_var_extern(mtype: MType): RuntimeVariable
+ do
+ mtype = self.anchor(mtype)
+ var name = self.get_name("var")
+ var res = new RuntimeVariable(name, mtype, mtype)
+ self.add_decl("{mtype.ctype_extern} {name} /* : {mtype} for extern */;")
+ return res
+ end
+
# Return a new uninitialized named runtime_variable
fun new_named_var(mtype: MType, name: String): RuntimeVariable
do
var mtype = recv.mtype
var finalizable_type = compiler.mainmodule.finalizable_type
if finalizable_type != null and not mtype.need_anchor and
- mtype.is_subtype(compiler.mainmodule, null, finalizable_type) then
+ mtype.is_subtype(compiler.mainmodule, null, finalizable_type) then
add "gc_register_finalizer({recv});"
end
end
# Non cached version of `c_name`
protected fun build_c_name: String is abstract
- protected var c_name_cache: nullable String writable = null
+ protected var c_name_cache: nullable String = null is writable
# Implements a call of the runtime_function
# May inline the body or generate a C function call
var mtype: MType
# The current casted type of the variable (as known in Nit)
- var mcasttype: MType writable
+ var mcasttype: MType is writable
# If the variable exaclty a mcasttype?
# false (usual value) means that the variable is a mcasttype or a subtype.
- var is_exact: Bool writable = false
+ var is_exact: Bool = false is writable
init(name: String, mtype: MType, mcasttype: MType)
do
var arguments: Array[RuntimeVariable]
# The runtime_variable associated to the return (in a function)
- var returnvar: nullable RuntimeVariable writable = null
+ var returnvar: nullable RuntimeVariable = null is writable
# The label at the end of the property
- var returnlabel: nullable String writable = null
+ var returnlabel: nullable String = null is writable
end
redef class MType
# Return the C type associated to a given Nit static type
fun ctype: String do return "val*"
+ # C type outside of the compiler code and in boxes
+ fun ctype_extern: String do return "val*"
+
+ # Short name of the `ctype` to use in unions
fun ctypename: String do return "val"
# Return the name of the C structure associated to a Nit live type
fun c_name: String is abstract
- protected var c_name_cache: nullable String protected writable
+ protected var c_name_cache: nullable String is protected writable
end
redef class MClassType
return "char*"
else if mclass.name == "NativeArray" then
return "val*"
- else if mclass.kind == extern_kind then
- return "void*"
else
return "val*"
end
end
+ redef fun ctype_extern: String
+ do
+ if mclass.kind == extern_kind then
+ return "void*"
+ else
+ return ctype
+ end
+ end
+
redef fun ctypename: String
do
if mclass.name == "Int" then
else if mclass.name == "NativeArray" then
#return "{self.arguments.first.ctype}*"
return "val"
- else if mclass.kind == extern_kind then
- return "ptr"
else
return "val"
end
v.supercall(mpropdef, arguments.first.mtype.as(MClassType), arguments)
end
+ # Try special compilation
+ if mpropdef.is_intern then
+ if compile_intern_to_c(v, mpropdef, arguments) then return
+ else if mpropdef.is_extern then
+ if mpropdef.mproperty.is_init then
+ if compile_externinit_to_c(v, mpropdef, arguments) then return
+ else
+ if compile_externmeth_to_c(v, mpropdef, arguments) then return
+ end
+ end
+
+ # Compile block if any
var n_block = n_block
if n_block != null then
for i in [0..mpropdef.msignature.arity[ do
v.assign(v.variable(variable), arguments[i+1])
end
v.stmt(n_block)
- else if mpropdef.is_intern then
- compile_intern_to_c(v, mpropdef, arguments)
- else if mpropdef.is_extern then
- if mpropdef.mproperty.is_init then
- compile_externinit_to_c(v, mpropdef, arguments)
- else
- compile_externmeth_to_c(v, mpropdef, arguments)
- end
- else
- abort
+ return
end
+
+ # We have a problem
+ var cn = v.class_name_string(arguments.first)
+ v.add("PRINT_ERROR(\"Runtime error: uncompiled method `%s` called on `%s`. NOT YET IMPLEMENTED\", \"{mpropdef.mproperty.name.escape_to_c}\", {cn});")
+ v.add_raw_abort
end
redef fun can_inline
return false
end
- fun compile_intern_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
+ fun compile_intern_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable]): Bool
do
var pname = mpropdef.mproperty.name
var cname = mpropdef.mclassdef.mclass.name
end
if pname != "==" and pname != "!=" then
v.adapt_signature(mpropdef, arguments)
+ v.unbox_signature_extern(mpropdef, arguments)
end
if cname == "Int" then
if pname == "output" then
v.add("printf(\"%ld\\n\", {arguments.first});")
- return
+ return true
else if pname == "object_id" then
v.ret(arguments.first)
- return
+ return true
else if pname == "+" then
v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "-" then
v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "unary -" then
v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
- return
+ return true
else if pname == "*" then
v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "/" then
v.ret(v.new_expr("{arguments[0]} / {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "%" then
v.ret(v.new_expr("{arguments[0]} % {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "lshift" then
v.ret(v.new_expr("{arguments[0]} << {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "rshift" then
v.ret(v.new_expr("{arguments[0]} >> {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "==" then
v.ret(v.equal_test(arguments[0], arguments[1]))
- return
+ return true
else if pname == "!=" then
var res = v.equal_test(arguments[0], arguments[1])
v.ret(v.new_expr("!{res}", ret.as(not null)))
- return
+ return true
else if pname == "<" then
v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == ">" then
v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "<=" then
v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == ">=" then
v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "to_f" then
v.ret(v.new_expr("(double){arguments[0]}", ret.as(not null)))
- return
+ return true
else if pname == "ascii" then
v.ret(v.new_expr("{arguments[0]}", ret.as(not null)))
- return
+ return true
end
else if cname == "Char" then
if pname == "output" then
v.add("printf(\"%c\", {arguments.first});")
- return
+ return true
else if pname == "object_id" then
v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
- return
+ return true
else if pname == "successor" then
v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "predecessor" then
v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "==" then
v.ret(v.equal_test(arguments[0], arguments[1]))
- return
+ return true
else if pname == "!=" then
var res = v.equal_test(arguments[0], arguments[1])
v.ret(v.new_expr("!{res}", ret.as(not null)))
- return
+ return true
else if pname == "<" then
v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == ">" then
v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "<=" then
v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == ">=" then
v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "to_i" then
v.ret(v.new_expr("{arguments[0]}-'0'", ret.as(not null)))
- return
+ return true
else if pname == "ascii" then
v.ret(v.new_expr("(unsigned char){arguments[0]}", ret.as(not null)))
- return
+ return true
end
else if cname == "Bool" then
if pname == "output" then
v.add("printf({arguments.first}?\"true\\n\":\"false\\n\");")
- return
+ return true
else if pname == "object_id" then
v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
- return
+ return true
else if pname == "==" then
v.ret(v.equal_test(arguments[0], arguments[1]))
- return
+ return true
else if pname == "!=" then
var res = v.equal_test(arguments[0], arguments[1])
v.ret(v.new_expr("!{res}", ret.as(not null)))
- return
+ return true
end
else if cname == "Float" then
if pname == "output" then
v.add("printf(\"%f\\n\", {arguments.first});")
- return
+ return true
else if pname == "object_id" then
v.ret(v.new_expr("(double){arguments.first}", ret.as(not null)))
- return
+ return true
else if pname == "+" then
v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "-" then
v.ret(v.new_expr("{arguments[0]} - {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "unary -" then
v.ret(v.new_expr("-{arguments[0]}", ret.as(not null)))
- return
+ return true
else if pname == "succ" then
v.ret(v.new_expr("{arguments[0]}+1", ret.as(not null)))
- return
+ return true
else if pname == "prec" then
v.ret(v.new_expr("{arguments[0]}-1", ret.as(not null)))
- return
+ return true
else if pname == "*" then
v.ret(v.new_expr("{arguments[0]} * {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "/" then
v.ret(v.new_expr("{arguments[0]} / {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "==" then
v.ret(v.equal_test(arguments[0], arguments[1]))
- return
+ return true
else if pname == "!=" then
var res = v.equal_test(arguments[0], arguments[1])
v.ret(v.new_expr("!{res}", ret.as(not null)))
- return
+ return true
else if pname == "<" then
v.ret(v.new_expr("{arguments[0]} < {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == ">" then
v.ret(v.new_expr("{arguments[0]} > {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "<=" then
v.ret(v.new_expr("{arguments[0]} <= {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == ">=" then
v.ret(v.new_expr("{arguments[0]} >= {arguments[1]}", ret.as(not null)))
- return
+ return true
else if pname == "to_i" then
v.ret(v.new_expr("(long){arguments[0]}", ret.as(not null)))
- return
+ return true
end
else if cname == "NativeString" then
if pname == "[]" then
v.ret(v.new_expr("{arguments[0]}[{arguments[1]}]", ret.as(not null)))
- return
+ return true
else if pname == "[]=" then
v.add("{arguments[0]}[{arguments[1]}]={arguments[2]};")
- return
+ return true
else if pname == "copy_to" then
v.add("memmove({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
- return
+ return true
else if pname == "atoi" then
v.ret(v.new_expr("atoi({arguments[0]});", ret.as(not null)))
- return
+ return true
else if pname == "init" then
v.ret(v.new_expr("(char*)nit_alloc({arguments[1]})", ret.as(not null)))
- return
+ return true
end
else if cname == "NativeArray" then
v.native_array_def(pname, ret, arguments)
- return
+ return true
end
if pname == "exit" then
v.add("exit({arguments[1]});")
- return
+ return true
else if pname == "sys" then
v.ret(v.new_expr("glob_sys", ret.as(not null)))
- return
+ return true
else if pname == "calloc_string" then
v.ret(v.new_expr("(char*)nit_alloc({arguments[1]})", ret.as(not null)))
- return
+ return true
else if pname == "calloc_array" then
v.calloc_array(ret.as(not null), arguments)
- return
+ return true
else if pname == "object_id" then
v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
- return
+ return true
else if pname == "is_same_type" then
v.ret(v.is_same_type_test(arguments[0], arguments[1]))
- return
+ return true
else if pname == "is_same_instance" then
v.ret(v.equal_test(arguments[0], arguments[1]))
- return
+ return true
else if pname == "output_class_name" then
var nat = v.class_name_string(arguments.first)
v.add("printf(\"%s\\n\", {nat});")
- return
+ return true
else if pname == "native_class_name" then
var nat = v.class_name_string(arguments.first)
v.ret(v.new_expr("(char*){nat}", ret.as(not null)))
- return
+ return true
else if pname == "force_garbage_collection" then
v.add("nit_gcollect();")
- return
+ return true
else if pname == "native_argc" then
v.ret(v.new_expr("glob_argc", ret.as(not null)))
- return
+ return true
else if pname == "native_argv" then
v.ret(v.new_expr("glob_argv[{arguments[1]}]", ret.as(not null)))
- return
+ return true
end
- v.add("PRINT_ERROR(\"NOT YET IMPLEMENTED {class_name}:{mpropdef} at {location.to_s}\\n\");")
- debug("Not implemented {mpropdef}")
+ return false
end
- fun compile_externmeth_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
+ # Compile an extern method
+ # Return `true` if the compilation was successful, `false` if a fall-back is needed
+ fun compile_externmeth_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable]): Bool
do
var externname
- var nextern = self.n_extern
- if nextern == null then
- v.add("PRINT_ERROR(\"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
- v.add("show_backtrace(1);")
- return
+ var at = self.get_single_annotation("extern", v.compiler.modelbuilder)
+ if at != null then
+ externname = at.arg_as_string(v.compiler.modelbuilder)
+ if externname == null then return false
+ else
+ var nextern = self.n_extern
+ if nextern == null then return false
+ externname = nextern.text.substring(1, nextern.text.length-2)
end
- externname = nextern.text.substring(1, nextern.text.length-2)
if location.file != null then
var file = location.file.filename
v.add_extern(file)
var ret = mpropdef.msignature.return_mtype
if ret != null then
ret = v.resolve_for(ret, arguments.first)
- res = v.new_var(ret)
+ res = v.new_var_extern(ret)
end
v.adapt_signature(mpropdef, arguments)
+ v.unbox_signature_extern(mpropdef, arguments)
if res == null then
v.add("{externname}({arguments.join(", ")});")
else
v.add("{res} = {externname}({arguments.join(", ")});")
+ res = v.box_extern(res, ret.as(not null))
v.ret(res)
end
+ return true
end
- fun compile_externinit_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
+ # Compile an extern factory
+ # Return `true` if the compilation was successful, `false` if a fall-back is needed
+ fun compile_externinit_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable]): Bool
do
var externname
- var nextern = self.n_extern
- if nextern == null then
- v.add("PRINT_ERROR(\"NOT YET IMPLEMENTED nitni for {mpropdef} at {location.to_s}\\n\");")
- v.add("show_backtrace(1);")
- return
+ var at = self.get_single_annotation("extern", v.compiler.modelbuilder)
+ if at != null then
+ externname = at.arg_as_string(v.compiler.modelbuilder)
+ if externname == null then return false
+ else
+ var nextern = self.n_extern
+ if nextern == null then return false
+ externname = nextern.text.substring(1, nextern.text.length-2)
end
- externname = nextern.text.substring(1, nextern.text.length-2)
if location.file != null then
var file = location.file.filename
v.add_extern(file)
end
v.adapt_signature(mpropdef, arguments)
+ v.unbox_signature_extern(mpropdef, arguments)
var ret = arguments.first.mtype
- var res = v.new_var(ret)
+ var res = v.new_var_extern(ret)
arguments.shift
v.add("{res} = {externname}({arguments.join(", ")});")
+ res = v.box_extern(res, ret)
v.ret(res)
+ return true
end
end
return v.native_array_instance(elttype, l)
else if ctype == "val*" then
recv = v.init_instance(mtype)
- else if ctype == "void*" then
+ else if ctype == "char*" then
recv = v.new_expr("NULL/*special!*/", mtype)
else
recv = v.new_expr("({ctype})0/*special!*/", mtype)
end
toolcontext.run_global_phases(ms)
end
-
amodule.ensure_compile_ffi_wrapper
compile_ffi_method(mmodule)
- assert self isa AExternPropdef
-
# nitni - Compile missing callbacks
mmodule.ensure_compile_nitni_base(v)
var ccu = mmodule.nitni_ccu.as(not null)
redef fun compile_externmeth_to_c(v, mpropdef, arguments)
do
- var mmodule = mpropdef.mclassdef.mmodule
-
# if using the old native interface fallback on previous implementation
- var nextern = self.n_extern
- if nextern != null then
- super
- return
- end
+ if n_extern_code_block == null then return super
+ var mmodule = mpropdef.mclassdef.mmodule
mmodule.uses_ffi = true
var mclass_type = mpropdef.mclassdef.bound_mtype
end
v.adapt_signature(mpropdef, arguments)
+ v.unbox_signature_extern(mpropdef, arguments)
var arguments_for_c = new Array[String]
for a in [0..arguments.length[ do
v.add("ret_var = {externname}({arguments_for_c.join(", ")});")
v.add("{recv_var} = ret_var->value;")
end
+ recv_var = v.box_extern(recv_var, return_mtype)
v.ret(recv_var)
end
compile_ffi_support_to_c(v)
+ return true
end
redef fun compile_externinit_to_c(v, mpropdef, arguments)
do
- var mmodule = mpropdef.mclassdef.mmodule
-
# if using the old native interface fallback on previous implementation
- var nextern = self.n_extern
- if nextern != null then
- super
- return
- end
+ if n_extern_code_block == null then return super
+ var mmodule = mpropdef.mclassdef.mmodule
mmodule.uses_ffi = true
var mclass_type = mpropdef.mclassdef.bound_mtype
var recv_var = v.new_var(return_mtype)
v.adapt_signature(mpropdef, arguments)
+ v.unbox_signature_extern(mpropdef, arguments)
arguments.shift
v.add("ret_var = {externname}({arguments_for_c.join(", ")});")
v.add("{recv_var} = ret_var->value;")
end
+ recv_var = v.box_extern(recv_var, return_mtype)
v.ret(recv_var)
compile_ffi_support_to_c(v)
+ return true
end
end
var base_cname = "null_{mtype.mangled_cname}"
var full_cname = "NIT_NULL___{base_cname}"
- # In nitni files, declare internal function as extern
+ # In nitni files, declare internal function as extern
var full_friendly_csignature = "{cname_blind} {full_cname}()"
ccu.header_decl.add("extern {full_friendly_csignature};\n")
var mproperty = mproperty
assert mproperty isa MMethod
- # In nitni files, declare internal function as extern
+ # In nitni files, declare internal function as extern
var full_friendly_csignature = mproperty.build_csignature(recv_mtype, v.compiler.mainmodule, null, long_signature, internal_call_context)
ccu.header_decl.add("extern {full_friendly_csignature};\n")
var mtype: MType = recv_mtype
var recv_var = null
if mproperty.is_init then
- if recv_mtype.mclass.kind == extern_kind then
- recv_var = nitni_visitor.new_var(mtype)
- else
- var recv_mtype = recv_mtype
- recv_var = nitni_visitor.init_instance(recv_mtype)
- nitni_visitor.add("{mtype.ctype} recv /* var self: {mtype} */;")
- nitni_visitor.add("recv = {recv_var};")
- end
+ var recv_mtype = recv_mtype
+ recv_var = nitni_visitor.init_instance(recv_mtype)
+ nitni_visitor.add("{mtype.ctype} recv /* var self: {mtype} */;")
+ nitni_visitor.add("recv = {recv_var};")
else
mtype = mtype.anchor_to(v.compiler.mainmodule, recv_mtype)
recv_var = nitni_visitor.var_from_c("recv", mtype)
+ recv_var = nitni_visitor.box_extern(recv_var, mtype)
end
vars.add(recv_var)
for p in msignature.mparameters do
var arg_mtype = p.mtype.anchor_to(v.compiler.mainmodule, recv_mtype)
var arg = nitni_visitor.var_from_c(p.name, arg_mtype)
+ arg = nitni_visitor.box_extern(arg, arg_mtype)
vars.add(arg)
end
assert ret_var != null
return_mtype = return_mtype.anchor_to(v.compiler.mainmodule, recv_mtype)
ret_var = nitni_visitor.autobox(ret_var, return_mtype)
+ ret_var = nitni_visitor.unbox_extern(ret_var, return_mtype)
nitni_visitor.ret_to_c(ret_var, return_mtype)
end
nitni_visitor.add("\}")
var vars = new Array[RuntimeVariable]
var recv_var = nitni_visitor.var_from_c("recv", mclass_type)
+ recv_var = nitni_visitor.box_extern(recv_var, mclass_type)
vars.add(recv_var)
for p in msignature.mparameters do
var arg_mtype = v.anchor(p.mtype)
var arg = nitni_visitor.var_from_c(p.name, arg_mtype)
+ arg = nitni_visitor.box_extern(arg, arg_mtype)
vars.add(arg)
end
if return_mtype != null then
assert ret_var != null
return_mtype = v.anchor(return_mtype)
+ ret_var = nitni_visitor.autobox(ret_var, return_mtype)
+ ret_var = nitni_visitor.unbox_extern(ret_var, return_mtype)
nitni_visitor.ret_to_c(ret_var, return_mtype)
end
nitni_visitor.add("\}")
## check type
#
- # In nitni files, declare internal function as extern
+ # In nitni files, declare internal function as extern
var full_friendly_csignature = "int {v.compiler.mainmodule.name }___{from.mangled_cname}_is_a_{to.mangled_cname}({from.cname_blind})"
ccu.header_decl.add("extern {full_friendly_csignature};\n")
var nitni_visitor = v.compiler.new_visitor
nitni_visitor.frame = v.frame
- var full_internal_csignature = "int {v.compiler.mainmodule.name }___{from.mangled_cname}_is_a_{to.mangled_cname}({from.cname_blind} from)"
+ var full_internal_csignature = "int {v.compiler.mainmodule.name }___{from.mangled_cname}_is_a_{to.mangled_cname}({internal_call_context.name_mtype(from)} from)"
+
nitni_visitor.add_decl("/* nitni check for {from} to {to} */")
nitni_visitor.add_decl("{full_internal_csignature} \{")
- var from_var = new RuntimeVariable("from->value", from, from)
+ #var from_var = new RuntimeVariable("from->value", from, from)
+ var from_var = nitni_visitor.var_from_c("from", from)
+ from_var = nitni_visitor.box_extern(from_var, from)
var recv_var = nitni_visitor.type_test(from_var, to, "FFI isa")
nitni_visitor.add("return {recv_var};")
nitni_visitor = v.compiler.new_visitor
nitni_visitor.frame = v.frame
- full_internal_csignature = "{to.cname_blind} {v.compiler.mainmodule.name }___{from.mangled_cname}_as_{to.mangled_cname}({from.cname_blind} from)"
+ full_internal_csignature = "{to.cname_blind} {v.compiler.mainmodule.name }___{from.mangled_cname}_as_{to.mangled_cname}({internal_call_context.name_mtype(from)} from)"
nitni_visitor.add_decl("/* nitni cast for {from} to {to} */")
nitni_visitor.add_decl("{full_internal_csignature} \{")
from_var = nitni_visitor.var_from_c("from", from)
+ from_var = nitni_visitor.box_extern(from_var, from)
## test type
var check = nitni_visitor.type_test(from_var, to, "FFI cast")
## internal cast
recv_var = nitni_visitor.autobox(from_var, to)
+ recv_var = nitni_visitor.unbox_extern(recv_var, to)
nitni_visitor.ret_to_c(recv_var, to)
var compiler = new GlobalCompiler(mainmodule, self, runtime_type_analysis)
compiler.compile_header
+ if mainmodule.model.get_mclasses_by_name("Pointer") != null then
+ runtime_type_analysis.live_types.add(mainmodule.pointer_type)
+ end
for t in runtime_type_analysis.live_types do
compiler.declare_runtimeclass(t)
end
for t in runtime_type_analysis.live_types do
if t.ctype == "val*" then
compiler.generate_init_instance(t)
+ if t.mclass.kind == extern_kind then
+ compiler.generate_box_instance(t)
+ end
else
compiler.generate_box_instance(t)
end
self.runtime_type_analysis = runtime_type_analysis
self.live_primitive_types = new Array[MClassType]
for t in runtime_type_analysis.live_types do
- if t.ctype != "val*" then
+ if t.ctype != "val*" or t.mclass.name == "Pointer" then
self.live_primitive_types.add(t)
end
end
v.add_decl("{mtype.arguments.first.ctype} values[1];")
end
- if mtype.ctype != "val*" then
+ if mtype.ctype_extern != "val*" then
# Is the Nit type is native then the struct is a box with two fields:
# * the `classid` to be polymorph
# * the `value` that contains the native value.
- v.add_decl("{mtype.ctype} value;")
+ v.add_decl("{mtype.ctype_extern} value;")
end
# Collect all attributes and associate them a field in the structure.
fun generate_box_instance(mtype: MClassType)
do
assert self.runtime_type_analysis.live_types.has(mtype)
- assert mtype.ctype != "val*"
var v = self.new_visitor
self.header.add_decl("val* BOX_{mtype.c_name}({mtype.ctype});")
end
end
+ redef fun unbox_extern(value, mtype)
+ do
+ if mtype isa MClassType and mtype.mclass.kind == extern_kind and
+ mtype.mclass.name != "NativeString" then
+ var res = self.new_var_extern(mtype)
+ self.add "{res} = ((struct {mtype.c_name}*){value})->value; /* unboxing {value.mtype} */"
+ return res
+ else
+ return value
+ end
+ end
+
+ redef fun box_extern(value, mtype)
+ do
+ if not mtype isa MClassType or mtype.mclass.kind != extern_kind or
+ mtype.mclass.name == "NativeString" then return value
+
+ var valtype = value.mtype.as(MClassType)
+ var res = self.new_var(mtype)
+ if compiler.runtime_type_analysis != null and not compiler.runtime_type_analysis.live_types.has(value.mtype.as(MClassType)) then
+ self.add("/*no boxing of {value.mtype}: {value.mtype} is not live! */")
+ self.add("PRINT_ERROR(\"Dead code executed!\\n\"); show_backtrace(1);")
+ return res
+ end
+ self.add("{res} = BOX_{valtype.c_name}({value}); /* boxing {value.mtype} */")
+ return res
+ end
+
# The runtime types that are acceptable for a given receiver.
fun collect_types(recv: RuntimeVariable): Array[MClassType]
do
do
var recv_type = get_recvtype(m, recvtype, args)
var recv = get_recv(recv_type, args)
+ if m.is_extern then recv = unbox_extern(recv, recv_type)
var new_args = args.to_a
self.varargize(m, m.msignature.as(not null), new_args)
new_args.first = recv
do
var recv_type = get_recvtype(m, recvtype, args)
var recv = get_recv(recv_type, args)
+ if m.is_extern then recv = unbox_extern(recv, recv_type)
var new_args = args.to_a
new_args.first = recv
return finalize_call(m, recv_type, new_args)
end
end
+ redef fun unbox_signature_extern(m, args)
+ do
+ var recv = args.first
+ for i in [0..m.msignature.arity[ do
+ var t = m.msignature.mparameters[i].mtype
+ if i == m.msignature.vararg_rank then
+ t = args[i+1].mtype
+ end
+ t = self.resolve_for(t, recv)
+ if m.is_extern then args[i+1] = self.unbox_extern(args[i+1], t)
+ end
+ end
+
# FIXME: this is currently buggy since recv is not exact
redef fun vararg_instance(mpropdef, recv, varargs, elttype)
do
if not t.is_subtype(self.compiler.mainmodule, null, value2.mcasttype) then continue
s.add "({value1}->classid == {self.compiler.classid(t)} && ((struct {t.c_name}*){value1})->value == ((struct {t.c_name}*){value2})->value)"
end
+
+ if self.compiler.mainmodule.model.get_mclasses_by_name("Pointer") != null then
+ var pointer_type = self.compiler.mainmodule.pointer_type
+ if value1.mcasttype.is_subtype(self.compiler.mainmodule, null, pointer_type) or
+ value2.mcasttype.is_subtype(self.compiler.mainmodule, null, pointer_type) then
+ s.add "(((struct {pointer_type.c_name}*){value1})->value == ((struct {pointer_type.c_name}*){value2})->value)"
+ end
+ end
+
if s.is_empty then
self.add("{res} = {value1} == {value2};")
else
self.header.add_decl("void* val;")
for c, v in self.box_kinds do
var t = c.mclass_type
- self.header.add_decl("{t.ctype} {t.ctypename};")
+
+ # `Pointer` reuse the `val` field
+ if t.mclass.name == "Pointer" then continue
+
+ self.header.add_decl("{t.ctype_extern} {t.ctypename};")
end
self.header.add_decl("\} nitattribute_t; /* general C type representing a Nit attribute. */")
end
fun box_kind_of(mclass: MClass): Int
do
- if mclass.mclass_type.ctype == "val*" then
+ #var pointer_type = self.mainmodule.pointer_type
+ #if mclass.mclass_type.ctype == "val*" or mclass.mclass_type.is_subtype(self.mainmodule, mclass.mclass_type pointer_type) then
+ if mclass.mclass_type.ctype_extern == "val*" then
return 0
- else if mclass.kind == extern_kind then
+ else if mclass.kind == extern_kind and mclass.name != "NativeString" then
return self.box_kinds[self.mainmodule.get_primitive_class("Pointer")]
else
return self.box_kinds[mclass]
do
var mtype = mclass.intro.bound_mtype
var c_name = mclass.c_name
- var c_instance_name = mclass.c_instance_name
var vft = self.method_tables[mclass]
var attrs = self.attr_tables[mclass]
var v = new_visitor
var rta = runtime_type_analysis
- var is_dead = rta != null and not rta.live_classes.has(mclass) and mtype.ctype == "val*" and mclass.name != "NativeArray"
+ var is_dead = rta != null and not rta.live_classes.has(mclass) and mtype.ctype == "val*" and mclass.name != "NativeArray" and mclass.name != "Pointer"
v.add_decl("/* runtime class {c_name} */")
v.add_decl("\};")
end
- if mtype.ctype != "val*" then
- if mtype.mclass.name == "Pointer" or mtype.mclass.kind != extern_kind then
- #Build instance struct
- self.header.add_decl("struct instance_{c_instance_name} \{")
- self.header.add_decl("const struct type *type;")
- self.header.add_decl("const struct class *class;")
- self.header.add_decl("{mtype.ctype} value;")
- self.header.add_decl("\};")
- end
+ if mtype.ctype != "val*" or mtype.mclass.name == "Pointer" then
+ # Is a primitive type or the Pointer class, not any other extern class
+
+ #Build instance struct
+ self.header.add_decl("struct instance_{c_name} \{")
+ self.header.add_decl("const struct type *type;")
+ self.header.add_decl("const struct class *class;")
+ self.header.add_decl("{mtype.ctype_extern} value;")
+ self.header.add_decl("\};")
- if not rta.live_types.has(mtype) then return
+ if not rta.live_types.has(mtype) and mtype.mclass.name != "Pointer" then return
#Build BOX
- self.provide_declaration("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype});")
+ self.provide_declaration("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype_extern});")
v.add_decl("/* allocate {mtype} */")
- v.add_decl("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
- v.add("struct instance_{c_instance_name}*res = nit_alloc(sizeof(struct instance_{c_instance_name}));")
+ v.add_decl("val* BOX_{mtype.c_name}({mtype.ctype_extern} value) \{")
+ v.add("struct instance_{c_name}*res = nit_alloc(sizeof(struct instance_{c_name}));")
+ v.compiler.undead_types.add(mtype)
v.require_declaration("type_{c_name}")
v.add("res->type = &type_{c_name};")
v.require_declaration("class_{c_name}")
v.add("res->value = value;")
v.add("return (val*)res;")
v.add("\}")
+
+ if mtype.mclass.name != "Pointer" then return
+
+ v = new_visitor
+ self.provide_declaration("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
+ v.add_decl("/* allocate {mtype} */")
+ v.add_decl("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
+ if is_dead then
+ v.add_abort("{mclass} is DEAD")
+ else
+ var res = v.new_named_var(mtype, "self")
+ res.is_exact = true
+ v.add("{res} = nit_alloc(sizeof(struct instance_{mtype.c_name}));")
+ v.add("{res}->type = type;")
+ hardening_live_type(v, "type")
+ v.require_declaration("class_{c_name}")
+ v.add("{res}->class = &class_{c_name};")
+ v.add("((struct instance_{mtype.c_name}*){res})->value = NULL;")
+ v.add("return {res};")
+ end
+ v.add("\}")
return
else if mclass.name == "NativeArray" then
#Build instance struct
- self.header.add_decl("struct instance_{c_instance_name} \{")
+ self.header.add_decl("struct instance_{c_name} \{")
self.header.add_decl("const struct type *type;")
self.header.add_decl("const struct class *class;")
# NativeArrays are just a instance header followed by a length and an array of values
v.add_decl("/* allocate {mtype} */")
v.add_decl("{mtype.ctype} NEW_{c_name}(int length, const struct type* type) \{")
var res = v.get_name("self")
- v.add_decl("struct instance_{c_instance_name} *{res};")
+ v.add_decl("struct instance_{c_name} *{res};")
var mtype_elt = mtype.arguments.first
- v.add("{res} = nit_alloc(sizeof(struct instance_{c_instance_name}) + length*sizeof({mtype_elt.ctype}));")
+ v.add("{res} = nit_alloc(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
v.add("{res}->type = type;")
hardening_live_type(v, "type")
v.require_declaration("class_{c_name}")
v.add("return (val*){res};")
v.add("\}")
return
+ else if mtype.mclass.kind == extern_kind and mtype.mclass.name != "NativeString" then
+ # Is an extern class (other than Pointer and NativeString)
+ # Pointer is caught in a previous `if`, and NativeString is internal
+
+ var pointer_type = mainmodule.pointer_type
+
+ self.provide_declaration("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
+ v.add_decl("/* allocate {mtype} */")
+ v.add_decl("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
+ if is_dead then
+ v.add_abort("{mclass} is DEAD")
+ else
+ var res = v.new_named_var(mtype, "self")
+ res.is_exact = true
+ v.add("{res} = nit_alloc(sizeof(struct instance_{pointer_type.c_name}));")
+ v.add("{res}->type = type;")
+ hardening_live_type(v, "type")
+ v.require_declaration("class_{c_name}")
+ v.add("{res}->class = &class_{c_name};")
+ v.add("((struct instance_{pointer_type.c_name}*){res})->value = NULL;")
+ v.add("return {res};")
+ end
+ v.add("\}")
+ return
end
#Build NEW
end
end
+ redef fun unbox_signature_extern(m, args)
+ do
+ var msignature = m.msignature.resolve_for(m.mclassdef.bound_mtype, m.mclassdef.bound_mtype, m.mclassdef.mmodule, true)
+ var recv = args.first
+ if not m.mproperty.is_init and m.is_extern then
+ args.first = self.unbox_extern(args.first, m.mclassdef.mclass.mclass_type)
+ end
+ for i in [0..msignature.arity[ do
+ var t = msignature.mparameters[i].mtype
+ if i == msignature.vararg_rank then
+ t = args[i+1].mtype
+ end
+ if m.is_extern then args[i+1] = self.unbox_extern(args[i+1], t)
+ end
+ end
+
redef fun autobox(value, mtype)
do
if value.mtype == mtype then
else if value.mtype.ctype == "val*" and mtype.ctype == "val*" then
return value
else if value.mtype.ctype == "val*" then
- return self.new_expr("((struct instance_{mtype.c_instance_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype)
+ return self.new_expr("((struct instance_{mtype.c_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype)
else if mtype.ctype == "val*" then
var valtype = value.mtype.as(MClassType)
+ if mtype isa MClassType and mtype.mclass.kind == extern_kind and mtype.mclass.name != "NativeString" then
+ valtype = compiler.mainmodule.pointer_type
+ end
var res = self.new_var(mtype)
if compiler.runtime_type_analysis != null and not compiler.runtime_type_analysis.live_types.has(valtype) then
self.add("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
end
end
+ redef fun unbox_extern(value, mtype)
+ do
+ if mtype isa MClassType and mtype.mclass.kind == extern_kind and
+ mtype.mclass.name != "NativeString" then
+ var pointer_type = compiler.mainmodule.pointer_type
+ var res = self.new_var_extern(mtype)
+ self.add "{res} = ((struct instance_{pointer_type.c_name}*){value})->value; /* unboxing {value.mtype} */"
+ return res
+ else
+ return value
+ end
+ end
+
+ redef fun box_extern(value, mtype)
+ do
+ if mtype isa MClassType and mtype.mclass.kind == extern_kind and
+ mtype.mclass.name != "NativeString" then
+ var valtype = compiler.mainmodule.pointer_type
+ var res = self.new_var(mtype)
+ if compiler.runtime_type_analysis != null and not compiler.runtime_type_analysis.live_types.has(value.mtype.as(MClassType)) then
+ self.add("/*no boxing of {value.mtype}: {value.mtype} is not live! */")
+ self.add("PRINT_ERROR(\"Dead code executed!\\n\"); show_backtrace(1);")
+ return res
+ end
+ self.require_declaration("BOX_{valtype.c_name}")
+ self.add("{res} = BOX_{valtype.c_name}({value}); /* boxing {value.mtype} */")
+ self.require_declaration("type_{mtype.c_name}")
+ self.add("{res}->type = &type_{mtype.c_name};")
+ self.require_declaration("class_{mtype.c_name}")
+ self.add("{res}->class = &class_{mtype.c_name};")
+ return res
+ else
+ return value
+ end
+ end
+
# Return a C expression returning the runtime type structure of the value
# The point of the method is to works also with primitives types.
fun type_info(value: RuntimeVariable): String
# The attribute is primitive, thus we store it in a box
# The trick is to create the box the first time then resuse the box
self.add("if ({attr} != NULL) \{")
- self.add("((struct instance_{mtype.c_instance_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
+ self.add("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
self.add("\} else \{")
value = self.autobox(value, self.object_type.as_nullable)
self.add("{attr} = {value}; /* {a} on {recv.inspect} */")
self.add_decl("const char* {res};")
if value.mtype.ctype == "val*" then
self.add "{res} = {value} == NULL ? \"null\" : {value}->type->name;"
- else if value.mtype isa MClassType and value.mtype.as(MClassType).mclass.kind == extern_kind then
+ else if value.mtype isa MClassType and value.mtype.as(MClassType).mclass.kind == extern_kind and
+ value.mtype.as(MClassType).name != "NativeString" then
self.add "{res} = \"{value.mtype.as(MClassType).mclass}\";"
else
self.require_declaration("type_{value.mtype.c_name}")
end
end
if primitive != null then
- test.add("((struct instance_{primitive.c_instance_name}*){value1})->value == ((struct instance_{primitive.c_instance_name}*){value2})->value")
+ test.add("((struct instance_{primitive.c_name}*){value1})->value == ((struct instance_{primitive.c_name}*){value2})->value")
else if can_be_primitive(value1) and can_be_primitive(value2) then
test.add("{value1}->class == {value2}->class")
var s = new Array[String]
for t, v in self.compiler.box_kinds do
- s.add "({value1}->class->box_kind == {v} && ((struct instance_{t.c_instance_name}*){value1})->value == ((struct instance_{t.c_instance_name}*){value2})->value)"
+ s.add "({value1}->class->box_kind == {v} && ((struct instance_{t.c_name}*){value1})->value == ((struct instance_{t.c_name}*){value2})->value)"
end
test.add("({s.join(" || ")})")
else
do
var elttype = arguments.first.mtype
var nclass = self.get_class("NativeArray")
- var recv = "((struct instance_{nclass.c_instance_name}*){arguments[0]})->values"
+ var recv = "((struct instance_{nclass.c_name}*){arguments[0]})->values"
if pname == "[]" then
self.ret(self.new_expr("{recv}[{arguments[1]}]", ret_type.as(not null)))
return
self.add("{recv}[{arguments[1]}]={arguments[2]};")
return
else if pname == "length" then
- self.ret(self.new_expr("((struct instance_{nclass.c_instance_name}*){arguments[0]})->length", ret_type.as(not null)))
+ self.ret(self.new_expr("((struct instance_{nclass.c_name}*){arguments[0]})->length", ret_type.as(not null)))
return
else if pname == "copy_to" then
- var recv1 = "((struct instance_{nclass.c_instance_name}*){arguments[1]})->values"
+ var recv1 = "((struct instance_{nclass.c_name}*){arguments[1]})->values"
self.add("memmove({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
return
end
redef class MType
fun const_color: String do return "COLOR_{c_name}"
-
- # C name of the instance type to use
- fun c_instance_name: String do return c_name
-end
-
-redef class MClassType
- redef fun c_instance_name do return mclass.c_instance_name
-end
-
-redef class MClass
- # Extern classes use the C instance of kernel::Pointer
- fun c_instance_name: String
- do
- if kind == extern_kind then
- return "kernel__Pointer"
- else return c_name
- end
end
interface PropertyLayoutElement end
super PropertyLayoutElement
fun const_color: String do return "COLOR_{c_name}"
end
+
+redef class AExternInitPropdef
+ # The semi-global compilation does not support inlining calls to extern news
+ redef fun can_inline do return false
+end
do
var mtype = mclass.intro.bound_mtype
var c_name = mclass.c_name
- var c_instance_name = mclass.c_instance_name
var vft = self.method_tables[mclass]
var attrs = self.attr_tables[mclass]
v.add_decl("\}")
v.add_decl("\};")
- if mtype.ctype != "val*" then
- if mtype.mclass.name == "Pointer" or mtype.mclass.kind != extern_kind then
- #Build instance struct
- self.header.add_decl("struct instance_{c_instance_name} \{")
- self.header.add_decl("const struct class *class;")
- self.header.add_decl("{mtype.ctype} value;")
- self.header.add_decl("\};")
- end
+ if mtype.ctype != "val*" or mtype.mclass.name == "Pointer" then
+ #Build instance struct
+ self.header.add_decl("struct instance_{c_name} \{")
+ self.header.add_decl("const struct class *class;")
+ self.header.add_decl("{mtype.ctype} value;")
+ self.header.add_decl("\};")
#Build BOX
self.provide_declaration("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype});")
v.add_decl("/* allocate {mtype} */")
v.add_decl("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
- v.add("struct instance_{c_instance_name}*res = nit_alloc(sizeof(struct instance_{c_instance_name}));")
+ v.add("struct instance_{c_name}*res = nit_alloc(sizeof(struct instance_{c_name}));")
v.require_declaration("class_{c_name}")
v.add("res->class = &class_{c_name};")
v.add("res->value = value;")
v.add("return (val*)res;")
v.add("\}")
+
+ if mtype.mclass.name != "Pointer" then return
+
+ v = new_visitor
+ self.provide_declaration("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}();")
+ v.add_decl("/* allocate {mtype} */")
+ v.add_decl("{mtype.ctype} NEW_{c_name}() \{")
+ if is_dead then
+ v.add_abort("{mclass} is DEAD")
+ else
+ var res = v.new_named_var(mtype, "self")
+ res.is_exact = true
+ v.add("{res} = nit_alloc(sizeof(struct instance_{mtype.c_name}));")
+ v.require_declaration("class_{c_name}")
+ v.add("{res}->class = &class_{c_name};")
+ v.add("((struct instance_{mtype.c_name}*){res})->value = NULL;")
+ v.add("return {res};")
+ end
+ v.add("\}")
return
else if mclass.name == "NativeArray" then
#Build instance struct
v.add("return (val*){res};")
v.add("\}")
return
+ else if mtype.mclass.kind == extern_kind and mtype.mclass.name != "NativeString" then
+ var pointer_type = mainmodule.pointer_type
+
+ self.provide_declaration("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}();")
+ v.add_decl("/* allocate {mtype} */")
+ v.add_decl("{mtype.ctype} NEW_{c_name}() \{")
+ if is_dead then
+ v.add_abort("{mclass} is DEAD")
+ else
+ var res = v.new_named_var(mtype, "self")
+ res.is_exact = true
+ v.add("{res} = nit_alloc(sizeof(struct instance_{pointer_type.c_name}));")
+ #v.add("{res}->type = type;")
+ v.require_declaration("class_{c_name}")
+ v.add("{res}->class = &class_{c_name};")
+ v.add("((struct instance_{pointer_type.c_name}*){res})->value = NULL;")
+ v.add("return {res};")
+ end
+ v.add("\}")
+ return
end
#Build NEW
return res
end
+ redef fun unbox_extern(value, mtype)
+ do
+ if mtype isa MClassType and mtype.mclass.kind == extern_kind and
+ mtype.mclass.name != "NativeString" then
+ var pointer_type = compiler.mainmodule.pointer_type
+ var res = self.new_var_extern(mtype)
+ self.add "{res} = ((struct instance_{pointer_type.c_name}*){value})->value; /* unboxing {value.mtype} */"
+ return res
+ else
+ return value
+ end
+ end
+
+ redef fun box_extern(value, mtype)
+ do
+ if mtype isa MClassType and mtype.mclass.kind == extern_kind and
+ mtype.mclass.name != "NativeString" then
+ var valtype = compiler.mainmodule.pointer_type
+ var res = self.new_var(mtype)
+ if compiler.runtime_type_analysis != null and not compiler.runtime_type_analysis.live_types.has(value.mtype.as(MClassType)) then
+ self.add("/*no boxing of {value.mtype}: {value.mtype} is not live! */")
+ self.add("PRINT_ERROR(\"Dead code executed!\\n\"); show_backtrace(1);")
+ return res
+ end
+ self.require_declaration("BOX_{valtype.c_name}")
+ self.add("{res} = BOX_{valtype.c_name}({value}); /* boxing {value.mtype} */")
+ self.require_declaration("class_{mtype.c_name}")
+ self.add("{res}->class = &class_{mtype.c_name};")
+ return res
+ else
+ return value
+ end
+ end
+
redef fun class_name_string(value)
do
var res = self.get_name("var_class_name")
# FIXME: better handling of the types
module model
- import poset
- import location
import mmodule
import mdoc
import ordered_tree
private var object_type_cache: nullable MClassType
+ # The type `Pointer`, super class to all extern classes
+ var pointer_type: MClassType = self.get_primitive_class("Pointer").mclass_type is lazy
+
# The primitive type `Bool`
fun bool_type: MClassType
do
# Is the property defined at the top_level of the module?
# Currently such a property are stored in `Object`
- var is_toplevel: Bool writable = false
+ var is_toplevel: Bool = false is writable
# Is the property a constructor?
# Warning, this property can be inherited by subclasses with or without being a constructor
# therefore, you should use `is_init_for` the verify if the property is a legal constructor for a given class
- var is_init: Bool writable = false
+ var is_init: Bool = false is writable
# The constructor is a (the) root init with empty signature but a set of initializers
- var is_root_init: Bool writable = false
+ var is_root_init: Bool = false is writable
# The the property a 'new' contructor?
- var is_new: Bool writable = false
+ var is_new: Bool = false is writable
# Is the property a legal constructor for a given class?
# As usual, visibility is not considered.
end
# The signature attached to the property definition
- var msignature: nullable MSignature writable = null
+ var msignature: nullable MSignature = null is writable
# The signature attached to the `new` call on a root-init
# This is a concatenation of the signatures of the initializers
#
# REQUIRE `mproperty.is_root_init == (new_msignature != null)`
- var new_msignature: nullable MSignature writable = null
+ var new_msignature: nullable MSignature = null is writable
# List of initialisers to call in root-inits
#
var initializers = new Array[MProperty]
# Is the method definition abstract?
- var is_abstract: Bool writable = false
+ var is_abstract: Bool = false is writable
# Is the method definition intern?
- var is_intern writable = false
+ var is_intern = false is writable
# Is the method definition extern?
- var is_extern writable = false
+ var is_extern = false is writable
end
# A local definition of an attribute
end
# The static type of the attribute
- var static_mtype: nullable MType writable = null
+ var static_mtype: nullable MType = null is writable
end
# A local definition of a virtual type
end
# The bound of the virtual type
- var bound: nullable MType writable = null
+ var bound: nullable MType = null is writable
# Is the bound fixed?
- var is_fixed writable = false
+ var is_fixed = false is writable
end
# A kind of class.
# A naive Nit interpreter
module nit
- import naive_interpreter
- import debugger
- import debugger_socket
+ import interpreter
+ import frontend
# Create a tool context to handle options and paths
var toolcontext = new ToolContext
-toolcontext.tooldescription = "Usage: nit [OPTION]... <file.nit>...\nInterprets and debbugs Nit programs."
+toolcontext.tooldescription = "Usage: nit [OPTION]... <file.nit>...\nInterprets and debugs Nit programs."
# Add an option "-o" to enable compatibilit with the tests.sh script
var opt = new OptionString("compatibility (does noting)", "-o")
toolcontext.option_context.add_option(opt)
# It is quite efficient but the type set is global and pollutes each call site.
module rapid_type_analysis
- import model
- import modelbuilder
- import typing
- import auto_super_init
+ import semantize
- import csv # for live_types_to_csv
- import ordered_tree # for live_methods_to_tree
+ private import csv # for live_types_to_csv
+ private import ordered_tree # for live_methods_to_tree
private import more_collections
force_alive("Int")
force_alive("Float")
force_alive("Char")
+ force_alive("Pointer")
while not todo.is_empty do
var mmethoddef = todo.shift
nitlanguage / nit.git / commitdiff