var opt_no_check_assert: OptionBool = new OptionBool("Disable the evaluation of explicit 'assert' and 'as' (dangerous)", "--no-check-assert")
# --no-check-autocast
var opt_no_check_autocast: OptionBool = new OptionBool("Disable implicit casts on unsafe expression usage (dangerous)", "--no-check-autocast")
- # --no-check-other
- var opt_no_check_other: OptionBool = new OptionBool("Disable implicit tests: unset attribute, null receiver (dangerous)", "--no-check-other")
+ # --no-check-null
+ var opt_no_check_null: OptionBool = new OptionBool("Disable tests of null receiver (dangerous)", "--no-check-null")
+ # --no-check-all
+ var opt_no_check_all: OptionBool = new OptionBool("Disable all tests (dangerous)", "--no-check-all")
# --typing-test-metrics
var opt_typing_test_metrics: OptionBool = new OptionBool("Enable static and dynamic count of all type tests", "--typing-test-metrics")
# --invocation-metrics
do
super
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, self.opt_no_shortcut_range)
- 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_other)
+ 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)
self.option_context.add_option(self.opt_typing_test_metrics, self.opt_invocation_metrics, self.opt_isset_checks_metrics)
self.option_context.add_option(self.opt_stacktrace)
self.option_context.add_option(self.opt_no_gcc_directive)
print "Error: cannot use both --dir and --output"
exit(1)
end
+
+ if opt_no_check_all.value then
+ opt_no_check_covariance.value = true
+ opt_no_check_attr_isset.value = true
+ opt_no_check_assert.value = true
+ opt_no_check_autocast.value = true
+ opt_no_check_null.value = true
+ end
end
end
protected fun compile_header_structs is abstract
# Declaration of structures for nitni undelying the FFI
- protected fun compile_nitni_structs is abstract
+ protected fun compile_nitni_structs
+ do
+ self.header.add_decl """
+/* Native reference to Nit objects */
+/* This structure is used to represent every Nit type in extern methods and custom C code. */
+struct nitni_ref {
+ struct nitni_ref *next,
+ *prev; /* adjacent global references in global list */
+ int count; /* number of time this global reference has been marked */
+};
+
+/* List of global references from C code to Nit objects */
+/* Instanciated empty at init of Nit system and filled explicitly by user in C code */
+struct nitni_global_ref_list_t {
+ struct nitni_ref *head, *tail;
+};
+extern struct nitni_global_ref_list_t *nitni_global_ref_list;
+
+/* Initializer of global reference list */
+extern void nitni_global_ref_list_init();
+
+/* Intern function to add a global reference to the list */
+extern void nitni_global_ref_add( struct nitni_ref *ref );
+
+/* Intern function to remove a global reference from the list */
+extern void nitni_global_ref_remove( struct nitni_ref *ref );
+
+/* Increase count on an existing global reference */
+extern void nitni_global_ref_incr( struct nitni_ref *ref );
+
+/* Decrease count on an existing global reference */
+extern void nitni_global_ref_decr( struct nitni_ref *ref );
+"""
+ end
+
+ fun compile_finalizer_function
+ do
+ var finalizable_type = mainmodule.finalizable_type
+ if finalizable_type == null then return
+
+ var finalize_meth = mainmodule.try_get_primitive_method("finalize", finalizable_type.mclass)
+
+ if finalize_meth == null then
+ modelbuilder.toolcontext.error(null, "The `Finalizable` class doesn't declare the `finalize` method.")
+ return
+ end
+
+ var v = self.new_visitor
+ v.add_decl "void gc_finalize (void *obj, void *client_data) \{"
+ var recv = v.new_expr("obj", finalizable_type)
+ v.send(finalize_meth, [recv])
+ v.add "\}"
+ end
# Generate the main C function.
# This function:
v.add("glob_argc = argc; glob_argv = argv;")
v.add("initialize_gc_option();")
+
+ v.add "initialize_nitni_global_refs();"
+
var main_type = mainmodule.sys_type
if main_type != null then
var mainmodule = v.compiler.mainmodule
if main_init != null then
v.send(main_init, [glob_sys])
end
- var main_method = mainmodule.try_get_primitive_method("main", main_type.mclass)
+ var main_method = mainmodule.try_get_primitive_method("run", main_type.mclass) or else
+ mainmodule.try_get_primitive_method("main", main_type.mclass)
if main_method != null then
v.send(main_method, [glob_sys])
end
v.add("\}")
end
+ # Copile all C functions related to the [incr|decr]_ref features of the FFI
+ fun compile_nitni_global_ref_functions
+ do
+ var v = self.new_visitor
+ v.add """
+struct nitni_global_ref_list_t *nitni_global_ref_list;
+void initialize_nitni_global_refs() {
+ nitni_global_ref_list = (struct nitni_global_ref_list_t*)nit_alloc(sizeof(struct nitni_global_ref_list_t));
+ nitni_global_ref_list->head = NULL;
+ nitni_global_ref_list->tail = NULL;
+}
+
+void nitni_global_ref_add( struct nitni_ref *ref ) {
+ if ( nitni_global_ref_list->head == NULL ) {
+ nitni_global_ref_list->head = ref;
+ ref->prev = NULL;
+ } else {
+ nitni_global_ref_list->tail->next = ref;
+ ref->prev = nitni_global_ref_list->tail;
+ }
+ nitni_global_ref_list->tail = ref;
+
+ ref->next = NULL;
+}
+
+void nitni_global_ref_remove( struct nitni_ref *ref ) {
+ if ( ref->prev == NULL ) {
+ nitni_global_ref_list->head = ref->next;
+ } else {
+ ref->prev->next = ref->next;
+ }
+
+ if ( ref->next == NULL ) {
+ nitni_global_ref_list->tail = ref->prev;
+ } else {
+ ref->next->prev = ref->prev;
+ }
+}
+
+extern void nitni_global_ref_incr( struct nitni_ref *ref ) {
+ if ( ref->count == 0 ) /* not registered */
+ {
+ /* add to list */
+ nitni_global_ref_add( ref );
+ }
+
+ ref->count ++;
+}
+
+extern void nitni_global_ref_decr( struct nitni_ref *ref ) {
+ if ( ref->count == 1 ) /* was last reference */
+ {
+ /* remove from list */
+ nitni_global_ref_remove( ref );
+ }
+
+ ref->count --;
+}
+"""
+ end
+
# List of additional files required to compile (FFI)
var extern_bodies = new Array[ExternFile]
return self.compiler.modelbuilder.force_get_primitive_method(self.current_node.as(not null), name, recv.mclass, self.compiler.mainmodule)
end
- fun compile_callsite(callsite: CallSite, args: Array[RuntimeVariable]): nullable RuntimeVariable
+ fun compile_callsite(callsite: CallSite, arguments: Array[RuntimeVariable]): nullable RuntimeVariable
do
- return self.send(callsite.mproperty, args)
+ var initializers = callsite.mpropdef.initializers
+ if not initializers.is_empty then
+ var recv = arguments.first
+
+ assert initializers.length == arguments.length - 1 else debug("expected {initializers.length}, got {arguments.length - 1}")
+ var i = 1
+ for p in initializers do
+ if p isa MMethod then
+ self.send(p, [recv, arguments[i]])
+ else if p isa MAttribute then
+ self.write_attribute(p, recv, arguments[i])
+ else abort
+ i += 1
+ end
+
+ return self.send(callsite.mproperty, [recv])
+ end
+
+ return self.send(callsite.mproperty, arguments)
end
fun native_array_instance(elttype: MType, length: RuntimeVariable): RuntimeVariable is abstract
# 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
# Add a check and an abort for a null reciever if needed
fun check_recv_notnull(recv: RuntimeVariable)
do
- if self.compiler.modelbuilder.toolcontext.opt_no_check_other.value then return
+ if self.compiler.modelbuilder.toolcontext.opt_no_check_null.value then return
var maybenull = recv.mcasttype isa MNullableType or recv.mcasttype isa MNullType
if maybenull then
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
# Generate a alloc-instance + init-attributes
fun init_instance(mtype: MClassType): RuntimeVariable is abstract
+ # Set a GC finalizer on `recv`, only if `recv` isa Finalizable
+ fun set_finalizer(recv: 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
+ add "gc_register_finalizer({recv});"
+ end
+ end
+
# Generate an integer value
fun int_instance(value: Int): RuntimeVariable
do
# 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
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
if auto_super_inits != null then
var args = [arguments.first]
for auto_super_init in auto_super_inits do
+ assert auto_super_init.mproperty != mpropdef.mproperty
args.clear
for i in [0..auto_super_init.msignature.arity+1[ do
args.add(arguments[i])
end
+ assert auto_super_init.mproperty != mpropdef.mproperty
v.compile_callsite(auto_super_init, args)
end
end
+ if auto_super_call then
+ v.supercall(mpropdef, arguments.first.mtype.as(MClassType), arguments)
+ end
var n_block = n_block
if n_block != null then
else
compile_externmeth_to_c(v, mpropdef, arguments)
end
+ else
+ abort
end
end
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("{arguments[0]}[{arguments[1]}]={arguments[2]};")
return
else if pname == "copy_to" then
- v.add("memcpy({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
+ v.add("memmove({arguments[1]}+{arguments[4]},{arguments[0]}+{arguments[3]},{arguments[2]});")
return
else if pname == "atoi" then
v.ret(v.new_expr("atoi({arguments[0]});", ret.as(not null)))
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
end
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)
end
end
redef class AAttrPropdef
redef fun compile_to_c(v, mpropdef, arguments)
do
- if arguments.length == 1 then
- var res = v.read_attribute(self.mpropdef.mproperty, arguments.first)
+ if mpropdef == mreadpropdef then
+ assert arguments.length == 1
+ var res
+ if is_lazy then
+ var nexpr = n_expr
+ assert nexpr != null
+ var set
+ var ret = self.mpropdef.static_mtype
+ var useiset = ret.ctype == "val*" and not ret isa MNullableType
+ var guard = self.mlazypropdef.mproperty
+ if useiset then
+ set = v.isset_attribute(self.mpropdef.mproperty, arguments.first)
+ else
+ set = v.read_attribute(guard, arguments.first)
+ end
+ v.add("if(likely({set})) \{")
+ res = v.read_attribute(self.mpropdef.mproperty, arguments.first)
+ v.add("\} else \{")
+ var value = v.expr(nexpr, self.mpropdef.static_mtype)
+ v.write_attribute(self.mpropdef.mproperty, arguments.first, value)
+ v.assign(res, value)
+ if not useiset then
+ var true_v = v.new_expr("1", v.bool_type)
+ v.write_attribute(guard, arguments.first, true_v)
+ end
+ v.add("\}")
+ else
+ res = v.read_attribute(self.mpropdef.mproperty, arguments.first)
+ end
v.assign(v.frame.returnvar.as(not null), res)
- else
+ else if mpropdef == mwritepropdef then
+ assert arguments.length == 2
v.write_attribute(self.mpropdef.mproperty, arguments.first, arguments[1])
+ if is_lazy then
+ var ret = self.mpropdef.static_mtype
+ var useiset = ret.ctype == "val*" and not ret isa MNullableType
+ if not useiset then
+ v.write_attribute(self.mlazypropdef.mproperty, arguments.first, v.new_expr("1", v.bool_type))
+ end
+ end
+ else
+ abort
end
end
fun init_expr(v: AbstractCompilerVisitor, recv: RuntimeVariable)
do
var nexpr = self.n_expr
- if nexpr != null then
+ if nexpr != null and not is_lazy then
var oldnode = v.current_node
v.current_node = self
var old_frame = v.frame
private fun compile_to_c(v: AbstractCompilerVisitor, mpropdef: MMethodDef, arguments: Array[RuntimeVariable])
do
if mpropdef == self.mfree_init then
+ if mpropdef.mproperty.is_root_init then
+ assert self.super_inits == null
+ assert arguments.length == 1
+ if not mpropdef.is_intro then
+ v.supercall(mpropdef, arguments.first.mtype.as(MClassType), arguments)
+ end
+ return
+ end
+
var super_inits = self.super_inits
if super_inits != null then
var args_of_super = arguments
v.send(su, args_of_super)
end
end
+
var recv = arguments.first
var i = 1
# Collect undefined attributes
# Shortcut on explicit range
# Avoid the instantiation of the range and the iterator
var nexpr = self.n_expr
- if self.variables.length == 1 and nexpr isa AOrangeExpr and not v.compiler.modelbuilder.toolcontext.opt_no_shortcut_range.value then
+ if self.variables.length == 1 and nexpr isa ARangeExpr and not v.compiler.modelbuilder.toolcontext.opt_no_shortcut_range.value then
var from = v.expr(nexpr.n_expr, null)
var to = v.expr(nexpr.n_expr2, null)
var variable = v.variable(variables.first)
+ var one = v.new_expr("1", v.get_class("Int").mclass_type)
v.assign(variable, from)
v.add("for(;;) \{ /* shortcut range */")
- var ok = v.send(v.get_property("<", variable.mtype), [variable, to])
+ var ok
+ if nexpr isa AOrangeExpr then
+ ok = v.send(v.get_property("<", variable.mtype), [variable, to])
+ else
+ ok = v.send(v.get_property("<=", variable.mtype), [variable, to])
+ end
assert ok != null
v.add("if(!{ok}) break;")
v.stmt(self.n_block)
v.add("CONTINUE_{v.escapemark_name(escapemark)}: (void)0;")
- var succ = v.send(v.get_property("succ", variable.mtype), [variable])
+ var succ = v.send(v.get_property("successor", variable.mtype), [variable, one])
assert succ != null
v.assign(variable, succ)
v.add("\}")
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)
nitlanguage / nit.git / blobdiff