X-Git-Url: http://nitlanguage.org

diff --git a/src/compiler/abstract_compiler.nit b/src/compiler/abstract_compiler.nit
index caf6622..07a8ede 100644
--- a/src/compiler/abstract_compiler.nit
+++ b/src/compiler/abstract_compiler.nit
@@ -120,20 +120,16 @@ redef class ModelBuilder
 	# Simple indirection to `Toolchain::write_and_make`
 	protected fun write_and_make(compiler: AbstractCompiler)
 	do
-		var platform = compiler.mainmodule.target_platform
-		var toolchain
-		if platform == null then
-			toolchain = new MakefileToolchain(toolcontext)
-		else
-			toolchain = platform.toolchain(toolcontext)
-		end
+		var platform = compiler.target_platform
+		var toolchain = platform.toolchain(toolcontext)
 		compile_dir = toolchain.compile_dir
 		toolchain.write_and_make compiler
 	end
 end
 
 redef class Platform
-	fun toolchain(toolcontext: ToolContext): Toolchain is abstract
+	# The specific tool-chain associated to the platform
+	fun toolchain(toolcontext: ToolContext): Toolchain do return new MakefileToolchain(toolcontext)
 end
 
 class Toolchain
@@ -189,10 +185,10 @@ class MakefileToolchain
 
 	fun write_files(compiler: AbstractCompiler, compile_dir: String, cfiles: Array[String])
 	do
-		var platform = compiler.mainmodule.target_platform
-		if self.toolcontext.opt_stacktrace.value == "nitstack" and (platform == null or platform.supports_libunwind) then compiler.build_c_to_nit_bindings
+		var platform = compiler.target_platform
+		if self.toolcontext.opt_stacktrace.value == "nitstack" and platform.supports_libunwind then compiler.build_c_to_nit_bindings
 		var cc_opt_with_libgc = "-DWITH_LIBGC"
-		if platform != null and not platform.supports_libgc then cc_opt_with_libgc = ""
+		if not platform.supports_libgc then cc_opt_with_libgc = ""
 
 		# Add gc_choser.h to aditionnal bodies
 		var gc_chooser = new ExternCFile("gc_chooser.c", cc_opt_with_libgc)
@@ -311,7 +307,7 @@ class MakefileToolchain
 	fun write_makefile(compiler: AbstractCompiler, compile_dir: String, cfiles: Array[String])
 	do
 		var mainmodule = compiler.mainmodule
-		var platform = compiler.mainmodule.target_platform
+		var platform = compiler.target_platform
 
 		var outname = outfile(mainmodule)
 
@@ -333,10 +329,10 @@ class MakefileToolchain
 			if libs != null then linker_options.add_all(libs)
 		end
 
-		makefile.write("CC = ccache cc\nCXX = ccache c++\nCFLAGS = -g -O2 -Wno-unused-value -Wno-switch\nCINCL =\nLDFLAGS ?= \nLDLIBS  ?= -lm {linker_options.join(" ")}\n\n")
+		makefile.write("CC = ccache cc\nCXX = ccache c++\nCFLAGS = -g -O2 -Wno-unused-value -Wno-switch -Wno-attributes\nCINCL =\nLDFLAGS ?= \nLDLIBS  ?= -lm {linker_options.join(" ")}\n\n")
 
 		var ost = toolcontext.opt_stacktrace.value
-		if (ost == "libunwind" or ost == "nitstack") and (platform == null or platform.supports_libunwind) then makefile.write("NEED_LIBUNWIND := YesPlease\n")
+		if (ost == "libunwind" or ost == "nitstack") and platform.supports_libunwind then makefile.write("NEED_LIBUNWIND := YesPlease\n")
 
 		# Dynamic adaptations
 		# While `platform` enable complex toolchains, they are statically applied
@@ -371,6 +367,18 @@ class MakefileToolchain
 			dep_rules.add(o)
 		end
 
+		# Generate linker script, if any
+		if not compiler.linker_script.is_empty then
+			var linker_script_path = "{compile_dir}/linker_script"
+			ofiles.add "linker_script"
+			var f = new OFStream.open(linker_script_path)
+			for l in compiler.linker_script do
+				f.write l
+				f.write "\n"
+			end
+			f.close
+		end
+
 		var java_files = new Array[ExternFile]
 
 		var pkgconfigs = new Array[String]
@@ -476,11 +484,19 @@ abstract class AbstractCompiler
 	# Is hardening asked? (see --hardening)
 	fun hardening: Bool do return self.modelbuilder.toolcontext.opt_hardening.value
 
+	# The targeted specific platform
+	var target_platform: Platform is noinit
+
 	init
 	do
 		self.realmainmodule = mainmodule
+		target_platform = mainmodule.target_platform or else new Platform
 	end
 
+	# Do the full code generation of the program `mainmodule`
+	# It is the main method usually called after the instantiation
+	fun do_compilation is abstract
+
 	# Force the creation of a new file
 	# The point is to avoid contamination between must-be-compiled-separately files
 	fun new_file(name: String): CodeFile
@@ -507,6 +523,10 @@ abstract class AbstractCompiler
 	# Where global declaration are stored (the main .h)
 	var header: CodeWriter is writable, noinit
 
+	# Additionnal linker script for `ld`.
+	# Mainly used to do specific link-time symbol resolution
+	var linker_script = new Array[String]
+
 	# Provide a declaration that can be requested (before or latter) by a visitor
 	fun provide_declaration(key: String, s: String)
 	do
@@ -677,11 +697,11 @@ extern void nitni_global_ref_decr( struct nitni_ref *ref );
 		var v = self.new_visitor
 		v.add_decl("#include <signal.h>")
 		var ost = modelbuilder.toolcontext.opt_stacktrace.value
-		var platform = mainmodule.target_platform
+		var platform = target_platform
 
-		if platform != null and not platform.supports_libunwind then ost = "none"
+		if not platform.supports_libunwind then ost = "none"
 
-		var no_main = (platform != null and platform.no_main) or modelbuilder.toolcontext.opt_no_main.value
+		var no_main = platform.no_main or modelbuilder.toolcontext.opt_no_main.value
 
 		if ost == "nitstack" or ost == "libunwind" then
 			v.add_decl("#define UNW_LOCAL_ONLY")
@@ -1036,8 +1056,8 @@ abstract class AbstractCompilerVisitor
 	# The current visited AST node
 	var current_node: nullable ANode = null is writable
 
-	# The current `Frame`
-	var frame: nullable Frame = null is writable
+	# The current `StaticFrame`
+	var frame: nullable StaticFrame = null is writable
 
 	# Alias for self.compiler.mainmodule.object_type
 	fun object_type: MClassType do return self.compiler.mainmodule.object_type
@@ -1279,11 +1299,11 @@ abstract class AbstractCompilerVisitor
 	fun escapemark_name(e: nullable EscapeMark): String
 	do
 		assert e != null
-		if escapemark_names.has_key(e) then return escapemark_names[e]
+		if frame.escapemark_names.has_key(e) then return frame.escapemark_names[e]
 		var name = e.name
 		if name == null then name = "label"
 		name = get_name(name)
-		escapemark_names[e] = name
+		frame.escapemark_names[e] = name
 		return name
 	end
 
@@ -1295,8 +1315,6 @@ abstract class AbstractCompilerVisitor
 		add("BREAK_{escapemark_name(e)}: (void)0;")
 	end
 
-	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
 	fun class_name_string(value: RuntimeVariable): String is abstract
@@ -1363,6 +1381,24 @@ abstract class AbstractCompilerVisitor
 	# Generate a alloc-instance + init-attributes
 	fun init_instance(mtype: MClassType): RuntimeVariable is abstract
 
+	# Allocate and init attributes of an instance of a standard or extern class
+	#
+	# Does not support universals and the pseudo-internal `NativeArray` class.
+	fun init_instance_or_extern(mtype: MClassType): RuntimeVariable
+	do
+		var recv
+		var ctype = mtype.ctype
+		assert mtype.mclass.name != "NativeArray"
+		if ctype == "val*" then
+			recv = init_instance(mtype)
+		else if ctype == "char*" then
+			recv = new_expr("NULL/*special!*/", mtype)
+		else
+			recv = new_expr("({ctype})0/*special!*/", mtype)
+		end
+		return recv
+	end
+
 	# Set a GC finalizer on `recv`, only if `recv` isa Finalizable
 	fun set_finalizer(recv: RuntimeVariable)
 	do
@@ -1460,10 +1496,11 @@ abstract class AbstractCompilerVisitor
 		self.require_declaration(s)
 	end
 
-	# look for a needed .h and .c file for a given .nit source-file
-	# FIXME: bad API, parameter should be a `MModule`, not its source-file
-	fun add_extern(file: String)
+	# Look for a needed .h and .c file for a given module
+	# This is used for the legacy FFI
+	fun add_extern(mmodule: MModule)
 	do
+		var file = mmodule.location.file.filename
 		file = file.strip_extension(".nit")
 		var tryfile = file + ".nit.h"
 		if tryfile.file_exists then
@@ -1536,6 +1573,15 @@ abstract class AbstractCompilerVisitor
 	fun stmt(nexpr: nullable AExpr)
 	do
 		if nexpr == null then return
+
+		var narray = nexpr.comprehension
+		if narray != null then
+			var recv = frame.comprehension.as(not null)
+			var val = expr(nexpr, narray.element_mtype)
+			compile_callsite(narray.push_callsite.as(not null), [recv, val])
+			return
+		end
+
 		var old = self.current_node
 		self.current_node = nexpr
 		nexpr.stmt(self)
@@ -1658,8 +1704,8 @@ class RuntimeVariable
 	end
 end
 
-# A frame correspond to a visited property in a `GlobalCompilerVisitor`
-class Frame
+# The static context of a visited property in a `AbstractCompilerVisitor`
+class StaticFrame
 
 	type VISITOR: AbstractCompilerVisitor
 
@@ -1681,6 +1727,13 @@ class Frame
 
 	# The label at the end of the property
 	var returnlabel: nullable String = null is writable
+
+	# Labels associated to a each escapemarks.
+	# Because of inlinings, escape-marks must be associated to their context (the frame)
+	private var escapemark_names = new HashMap[EscapeMark, String]
+
+	# The array comprehension currently filled, if any
+	private var comprehension: nullable RuntimeVariable = null
 end
 
 redef class MType
@@ -1692,21 +1745,9 @@ redef class MType
 
 	# 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 is protected writable
 end
 
 redef class MClassType
-	redef fun c_name
-	do
-		var res = self.c_name_cache
-		if res != null then return res
-		res = "{mclass.intro_mmodule.c_name}__{mclass.name.to_cmangle}"
-		self.c_name_cache = res
-		return res
-	end
 
 	redef fun ctype: String
 	do
@@ -1757,90 +1798,8 @@ redef class MClassType
 	end
 end
 
-redef class MGenericType
-	redef fun c_name
-	do
-		var res = self.c_name_cache
-		if res != null then return res
-		res = super
-		for t in self.arguments do
-			res = res + t.c_name
-		end
-		self.c_name_cache = res
-		return res
-	end
-end
-
-redef class MParameterType
-	redef fun c_name
-	do
-		var res = self.c_name_cache
-		if res != null then return res
-		res = "{self.mclass.c_name}_FT{self.rank}"
-		self.c_name_cache = res
-		return res
-	end
-end
-
-redef class MVirtualType
-	redef fun c_name
-	do
-		var res = self.c_name_cache
-		if res != null then return res
-		res = "{self.mproperty.intro.mclassdef.mclass.c_name}_VT{self.mproperty.name}"
-		self.c_name_cache = res
-		return res
-	end
-end
-
-redef class MNullableType
-	redef fun c_name
-	do
-		var res = self.c_name_cache
-		if res != null then return res
-		res = "nullable_{self.mtype.c_name}"
-		self.c_name_cache = res
-		return res
-	end
-end
-
-redef class MClass
-	# Return the name of the C structure associated to a Nit class
-	fun c_name: String do
-		var res = self.c_name_cache
-		if res != null then return res
-		res = "{intro_mmodule.c_name}__{name.to_cmangle}"
-		self.c_name_cache = res
-		return res
-	end
-	private var c_name_cache: nullable String
-end
-
-redef class MProperty
-	fun c_name: String do
-		var res = self.c_name_cache
-		if res != null then return res
-		res = "{self.intro.c_name}"
-		self.c_name_cache = res
-		return res
-	end
-	private var c_name_cache: nullable String
-end
-
 redef class MPropDef
 	type VISITOR: AbstractCompilerVisitor
-
-	private var c_name_cache: nullable String
-
-	# The mangled name associated to the property
-	fun c_name: String
-	do
-		var res = self.c_name_cache
-		if res != null then return res
-		res = "{self.mclassdef.mmodule.c_name}__{self.mclassdef.mclass.name.to_cmangle}__{self.mproperty.name.to_cmangle}"
-		self.c_name_cache = res
-		return res
-	end
 end
 
 redef class MMethodDef
@@ -2231,16 +2190,13 @@ redef class AMethPropdef
 	do
 		var externname
 		var at = self.get_single_annotation("extern", v.compiler.modelbuilder)
-		if at != null then
+		if at != null and at.n_args.length == 1 then
 			externname = at.arg_as_string(v.compiler.modelbuilder)
 			if externname == null then return false
 		else
 			return false
 		end
-		if location.file != null then
-			var file = location.file.filename
-			v.add_extern(file)
-		end
+		v.add_extern(mpropdef.mclassdef.mmodule)
 		var res: nullable RuntimeVariable = null
 		var ret = mpropdef.msignature.return_mtype
 		if ret != null then
@@ -2272,10 +2228,7 @@ redef class AMethPropdef
 		else
 			return false
 		end
-		if location.file != null then
-			var file = location.file.filename
-			v.add_extern(file)
-		end
+		v.add_extern(mpropdef.mclassdef.mmodule)
 		v.adapt_signature(mpropdef, arguments)
 		v.unbox_signature_extern(mpropdef, arguments)
 		var ret = arguments.first.mtype
@@ -2291,6 +2244,8 @@ redef class AMethPropdef
 end
 
 redef class AAttrPropdef
+	redef fun can_inline: Bool do return not is_lazy
+
 	redef fun compile_to_c(v, mpropdef, arguments)
 	do
 		if mpropdef == mreadpropdef then
@@ -2349,7 +2304,7 @@ redef class AAttrPropdef
 		var oldnode = v.current_node
 		v.current_node = self
 		var old_frame = v.frame
-		var frame = new Frame(v, self.mpropdef.as(not null), recv.mcasttype.as(MClassType), [recv])
+		var frame = new StaticFrame(v, self.mpropdef.as(not null), recv.mcasttype.as_notnullable.as(MClassType), [recv])
 		v.frame = frame
 
 		var value
@@ -2388,7 +2343,7 @@ redef class AAttrPropdef
 		var oldnode = v.current_node
 		v.current_node = self
 		var old_frame = v.frame
-		var frame = new Frame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
+		var frame = new StaticFrame(v, self.mpropdef.as(not null), recv.mtype.as(MClassType), [recv])
 		v.frame = frame
 		# Force read to check the initialization
 		v.read_attribute(self.mpropdef.mproperty, recv)
@@ -2742,13 +2697,18 @@ end
 redef class AArrayExpr
 	redef fun expr(v)
 	do
-		var mtype = self.mtype.as(MClassType).arguments.first
+		var mtype = self.element_mtype.as(not null)
 		var array = new Array[RuntimeVariable]
-		for nexpr in self.n_exprs.n_exprs do
-			var i = v.expr(nexpr, mtype)
-			array.add(i)
+		var res = v.array_instance(array, mtype)
+
+		var old_comprehension = v.frame.comprehension
+		v.frame.comprehension = res
+		for nexpr in self.n_exprs do
+			v.stmt(nexpr)
 		end
-		return v.array_instance(array, mtype)
+		v.frame.comprehension = old_comprehension
+
+		return res
 	end
 end
 
@@ -2932,22 +2892,17 @@ redef class ANewExpr
 	do
 		var mtype = self.recvtype
 		assert mtype != null
-		var recv
-		var ctype = mtype.ctype
+
 		if mtype.mclass.name == "NativeArray" then
 			assert self.n_args.n_exprs.length == 1
 			var l = v.expr(self.n_args.n_exprs.first, null)
 			assert mtype isa MGenericType
 			var elttype = mtype.arguments.first
 			return v.native_array_instance(elttype, l)
-		else if ctype == "val*" then
-			recv = v.init_instance(mtype)
-		else if ctype == "char*" then
-			recv = v.new_expr("NULL/*special!*/", mtype)
-		else
-			recv = v.new_expr("({ctype})0/*special!*/", mtype)
 		end
 
+		var recv = v.init_instance_or_extern(mtype)
+
 		var callsite = self.callsite.as(not null)
 		var args = v.varargize(callsite.mpropdef, recv, self.n_args.n_exprs)
 		var res2 = v.compile_callsite(callsite, args)
@@ -3020,19 +2975,6 @@ redef class Array[E]
 end
 
 redef class MModule
-	# Return the name of the global C identifier associated to `self`.
-	# This name is used to prefix files and other C identifiers associated with `self`.
-	var c_name: String is lazy do
-		var g = mgroup
-		var res
-		if g != null and g.mproject.name != name then
-			res = g.mproject.name.to_cmangle + "__" + name.to_cmangle
-		else
-			res = name.to_cmangle
-		end
-		return res
-	end
-
 	# All `MProperty` associated to all `MClassDef` of `mclass`
 	fun properties(mclass: MClass): Set[MProperty] do
 		if not self.properties_cache.has_key(mclass) then
@@ -3061,7 +3003,7 @@ redef class MModule
 
 	# Give requided addinional system libraries (as given to LD_LIBS)
 	# Note: can return null instead of an empty set
-	fun collect_linker_libs: nullable Set[String] do return null
+	fun collect_linker_libs: nullable Array[String] do return null
 end
 
 # Create a tool context to handle options and paths