import semantize
import platform
import c_tools
+private import annotation
# Add compiling options
redef class ToolContext
var outname = outfile(mainmodule)
- var orig_dir=".." # FIXME only works if `compile_dir` is a subdirectory of cwd
+ var orig_dir = compile_dir.relpath(".")
var outpath = orig_dir.join_path(outname).simplify_path
var makename = makefile_name(mainmodule)
var makepath = "{compile_dir}/{makename}"
# 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)
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
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]])
+ var args = [recv]
+ for x in p.intro.msignature.mparameters do
+ args.add arguments[i]
+ i += 1
+ end
+ self.send(p, args)
else if p isa MAttribute then
self.write_attribute(p, recv, arguments[i])
+ i += 1
else abort
- i += 1
end
+ assert i == arguments.length
return self.send(callsite.mproperty, [recv])
end
# 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
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
# 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
+ return false
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
+ return false
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
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
- if arguments.length > 1 then args_of_super = [arguments.first]
- for su in super_inits do
- v.send(su, args_of_super)
- end
- end
-
- var recv = arguments.first
- var i = 1
- # Collect undefined attributes
- for npropdef in self.n_propdefs do
- if npropdef isa AAttrPropdef and npropdef.n_expr == null and not npropdef.noinit then
- v.write_attribute(npropdef.mpropdef.mproperty, recv, arguments[i])
- i += 1
- end
+ assert mpropdef.mproperty.is_root_init
+ assert arguments.length == 1
+ if not mpropdef.is_intro then
+ v.supercall(mpropdef, arguments.first.mtype.as(MClassType), arguments)
end
+ return
else
abort
end
v.compile_callsite(next_meth, [it])
v.add("\}")
v.add("BREAK_{v.escapemark_name(escapemark)}: (void)0;")
+
+ var method_finish = self.method_finish
+ if method_finish != null then
+ # TODO: Find a way to call this also in long escape (e.g. return)
+ v.compile_callsite(method_finish, [it])
+ end
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)
nitlanguage / nit.git / blobdiff