contrib/sort_downloads: fix missing C include
[nit.git] / src / abstract_compiler.nit
index 9bf87bd..df82067 100644 (file)
@@ -32,6 +32,8 @@ redef class ToolContext
        var opt_cc_path: OptionArray = new OptionArray("Set include path for C header files (may be used more than once)", "--cc-path")
        # --make-flags
        var opt_make_flags: OptionString = new OptionString("Additional options to make", "--make-flags")
+       # --compile-dir
+       var opt_compile_dir: OptionString = new OptionString("Directory used to generate temporary files", "--compile-dir")
        # --hardening
        var opt_hardening: OptionBool = new OptionBool("Generate contracts in the C code against bugs in the compiler", "--hardening")
        # --no-shortcut-range
@@ -52,7 +54,7 @@ redef class ToolContext
        redef init
        do
                super
-               self.option_context.add_option(self.opt_output, self.opt_no_cc, self.opt_make_flags, self.opt_hardening, self.opt_no_shortcut_range)
+               self.option_context.add_option(self.opt_output, self.opt_no_cc, 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_initialization, self.opt_no_check_assert, self.opt_no_check_autocast, self.opt_no_check_other)
                self.option_context.add_option(self.opt_typing_test_metrics)
        end
@@ -105,15 +107,20 @@ redef class ModelBuilder
                var time0 = get_time
                self.toolcontext.info("*** WRITING C ***", 1)
 
-               ".nit_compile".mkdir
+               var compile_dir = toolcontext.opt_compile_dir.value
+               if compile_dir == null then compile_dir = ".nit_compile"
+
+               compile_dir.mkdir
+               var orig_dir=".." # FIXME only works if `compile_dir` is a subdirectory of cwd
 
                var outname = self.toolcontext.opt_output.value
                if outname == null then
                        outname = "{mainmodule.name}"
                end
+               var outpath = orig_dir.join_path(outname).simplify_path
 
                var hfilename = compiler.header.file.name + ".h"
-               var hfilepath = ".nit_compile/{hfilename}"
+               var hfilepath = "{compile_dir}/{hfilename}"
                var h = new OFStream.open(hfilepath)
                for l in compiler.header.decl_lines do
                        h.write l
@@ -131,8 +138,9 @@ redef class ModelBuilder
                        var i = 0
                        var hfile: nullable OFStream = null
                        var count = 0
-                       var cfilename = ".nit_compile/{f.name}.0.h"
-                       hfile = new OFStream.open(cfilename)
+                       var cfilename = "{f.name}.0.h"
+                       var cfilepath = "{compile_dir}/{cfilename}"
+                       hfile = new OFStream.open(cfilepath)
                        hfile.write "#include \"{hfilename}\"\n"
                        for key in f.required_declarations do
                                if not compiler.provided_declarations.has_key(key) then
@@ -152,10 +160,11 @@ redef class ModelBuilder
                                if file == null or count > 10000  then
                                        i += 1
                                        if file != null then file.close
-                                       cfilename = ".nit_compile/{f.name}.{i}.c"
-                                       self.toolcontext.info("new C source files to compile: {cfilename}", 3)
+                                       cfilename = "{f.name}.{i}.c"
+                                       cfilepath = "{compile_dir}/{cfilename}"
+                                       self.toolcontext.info("new C source files to compile: {cfilepath}", 3)
                                        cfiles.add(cfilename)
-                                       file = new OFStream.open(cfilename)
+                                       file = new OFStream.open(cfilepath)
                                        file.write "#include \"{f.name}.0.h\"\n"
                                        count = total_lines
                                end
@@ -175,16 +184,17 @@ redef class ModelBuilder
 
                # Generate the Makefile
 
-               var makename = ".nit_compile/{mainmodule.name}.mk"
-               var makefile = new OFStream.open(makename)
+               var makename = "{mainmodule.name}.mk"
+               var makepath = "{compile_dir}/{makename}"
+               var makefile = new OFStream.open(makepath)
 
                var cc_includes = ""
                for p in cc_paths do
-                       #p = "..".join_path(p)
+                       p = orig_dir.join_path(p).simplify_path
                        cc_includes += " -I \"" + p + "\""
                end
                makefile.write("CC = ccache cc\nCFLAGS = -g -O2\nCINCL = {cc_includes}\nLDFLAGS ?= \nLDLIBS  ?= -lm -lgc\n\n")
-               makefile.write("all: {outname}\n\n")
+               makefile.write("all: {outpath}\n\n")
 
                var ofiles = new Array[String]
                # Compile each generated file
@@ -201,17 +211,18 @@ redef class ModelBuilder
                # Compile each required extern body into a specific .o
                for f in compiler.extern_bodies do
                        var basename = f.filename.basename(".c")
-                       var o = ".nit_compile/{basename}.extern.o"
-                       makefile.write("{o}: {f.filename}\n\t$(CC) $(CFLAGS) -D NONITCNI {f.cflags} -c -o {o} {f.filename}\n\n")
+                       var o = "{basename}.extern.o"
+                       var ff = orig_dir.join_path(f.filename).simplify_path
+                       makefile.write("{o}: {ff}\n\t$(CC) $(CFLAGS) -D NONITCNI {f.cflags} -c -o {o} {ff}\n\n")
                        ofiles.add(o)
                end
 
                # Link edition
-               makefile.write("{outname}: {ofiles.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outname} {ofiles.join(" ")} $(LDLIBS)\n\n")
+               makefile.write("{outpath}: {ofiles.join(" ")}\n\t$(CC) $(LDFLAGS) -o {outpath} {ofiles.join(" ")} $(LDLIBS)\n\n")
                # Clean
                makefile.write("clean:\n\trm {ofiles.join(" ")} 2>/dev/null\n\n")
                makefile.close
-               self.toolcontext.info("Generated makefile: {makename}", 2)
+               self.toolcontext.info("Generated makefile: {makepath}", 2)
 
                var time1 = get_time
                self.toolcontext.info("*** END WRITING C: {time1-time0} ***", 2)
@@ -224,13 +235,13 @@ redef class ModelBuilder
                self.toolcontext.info("*** COMPILING C ***", 1)
                var makeflags = self.toolcontext.opt_make_flags.value
                if makeflags == null then makeflags = ""
-               self.toolcontext.info("make -B -f {makename} -j 4 {makeflags}", 2)
+               self.toolcontext.info("make -B -C {compile_dir} -f {makename} -j 4 {makeflags}", 2)
 
                var res
                if self.toolcontext.verbose_level >= 3 then
-                       res = sys.system("make -B -f {makename} -j 4 {makeflags} 2>&1")
+                       res = sys.system("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1")
                else
-                       res = sys.system("make -B -f {makename} -j 4 {makeflags} 2>&1 >/dev/null")
+                       res = sys.system("make -B -C {compile_dir} -f {makename} -j 4 {makeflags} 2>&1 >/dev/null")
                end
                if res != 0 then
                        toolcontext.error(null, "make failed! Error code: {res}.")
@@ -807,13 +818,11 @@ abstract class AbstractCompilerVisitor
                self.add("if ({name}) \{")
                self.add("{res} = {name};")
                self.add("\} else \{")
-               var nat = self.new_var(self.get_class("NativeString").mclass_type)
+               var native_mtype = self.get_class("NativeString").mclass_type
+               var nat = self.new_var(native_mtype)
                self.add("{nat} = \"{string.escape_to_c}\";")
-               var res2 = self.init_instance(mtype)
-               self.add("{res} = {res2};")
                var length = self.int_instance(string.length)
-               self.send(self.get_property("with_native", mtype), [res, nat, length])
-               self.check_init_instance(res, mtype)
+               self.add("{res} = {self.send(self.get_property("to_s_with_length", native_mtype), [nat, length]).as(not null)};")
                self.add("{name} = {res};")
                self.add("\}")
                return res
@@ -885,14 +894,31 @@ abstract class AbstractCompilerVisitor
        # used by aborts, asserts, casts, etc.
        fun add_abort(message: String)
        do
+               self.add("fprintf(stderr, \"Runtime error: %s\", \"{message.escape_to_c}\");")
+               add_raw_abort
+       end
+
+       fun add_raw_abort
+       do
                if self.current_node != null and self.current_node.location.file != null then
-                       self.add("fprintf(stderr, \"Runtime error: %s (%s:%d)\\n\", \"{message.escape_to_c}\", \"{self.current_node.location.file.filename.escape_to_c}\", {current_node.location.line_start});")
+                       self.add("fprintf(stderr, \" (%s:%d)\\n\", \"{self.current_node.location.file.filename.escape_to_c}\", {current_node.location.line_start});")
                else
-                       self.add("fprintf(stderr, \"Runtime error: %s\\n\", \"{message.escape_to_c}\");")
+                       self.add("fprintf(stderr, \"\\n\");")
                end
                self.add("exit(1);")
        end
 
+       # Add a dynamic cast
+       fun add_cast(value: RuntimeVariable, mtype: MType, tag: String)
+       do
+               var res = self.type_test(value, mtype, tag)
+               self.add("if (!{res}) \{")
+               var cn = self.class_name_string(value)
+               self.add("fprintf(stderr, \"Runtime error: Cast failed. Expected `%s`, got `%s`\", \"{mtype.to_s.escape_to_c}\", {cn});")
+               self.add_raw_abort
+               self.add("\}")
+       end
+
        # Generate a return with the value `s`
        fun ret(s: RuntimeVariable)
        do
@@ -924,10 +950,7 @@ abstract class AbstractCompilerVisitor
                res = autoadapt(res, nexpr.mtype.as(not null))
                var implicit_cast_to = nexpr.implicit_cast_to
                if implicit_cast_to != null and not self.compiler.modelbuilder.toolcontext.opt_no_check_autocast.value then
-                       var castres = self.type_test(res, implicit_cast_to, "auto")
-                       self.add("if (!{castres}) \{")
-                       self.add_abort("Cast failed")
-                       self.add("\}")
+                       add_cast(res, implicit_cast_to, "auto")
                        res = autoadapt(res, implicit_cast_to)
                end
                self.current_node = old
@@ -1275,10 +1298,7 @@ redef class MMethodDef
                        # generate the cast
                        # note that v decides if and how to implements the cast
                        v.add("/* Covariant cast for argument {i} ({self.msignature.mparameters[i].name}) {arguments[i+1].inspect} isa {mtype} */")
-                       var cond = v.type_test(arguments[i+1], mtype, "covariance")
-                       v.add("if (!{cond}) \{")
-                       v.add_abort("Cast failed")
-                       v.add("\}")
+                       v.add_cast(arguments[i+1], mtype, "covariance")
                end
        end
 end
@@ -1408,7 +1428,7 @@ redef class AInternMethPropdef
                                v.add("printf(\"%c\", {arguments.first});")
                                return
                        else if pname == "object_id" then
-                               v.ret(arguments.first)
+                               v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
                                return
                        else if pname == "+" then
                                v.ret(v.new_expr("{arguments[0]} + {arguments[1]}", ret.as(not null)))
@@ -1453,7 +1473,7 @@ redef class AInternMethPropdef
                                v.add("printf({arguments.first}?\"true\\n\":\"false\\n\");")
                                return
                        else if pname == "object_id" then
-                               v.ret(arguments.first)
+                               v.ret(v.new_expr("(long){arguments.first}", ret.as(not null)))
                                return
                        else if pname == "==" then
                                v.ret(v.equal_test(arguments[0], arguments[1]))
@@ -1514,24 +1534,6 @@ redef class AInternMethPropdef
                                v.ret(v.new_expr("(long){arguments[0]}", ret.as(not null)))
                                return
                        end
-               else if cname == "Char" then
-                       if pname == "output" then
-                               v.add("printf(\"%c\", {arguments.first});")
-                               return
-                       else if pname == "object_id" then
-                               v.ret(arguments.first)
-                               return
-                       else if pname == "==" then
-                               v.ret(v.equal_test(arguments[0], arguments[1]))
-                               return
-                       else if pname == "!=" then
-                               var res = v.equal_test(arguments[0], arguments[1])
-                               v.ret(v.new_expr("!{res}", ret.as(not null)))
-                               return
-                       else if pname == "ascii" then
-                               v.ret(v.new_expr("{arguments[0]}", ret.as(not null)))
-                               return
-                       end
                else if cname == "NativeString" then
                        if pname == "[]" then
                                v.ret(v.new_expr("{arguments[0]}[{arguments[1]}]", ret.as(not null)))
@@ -1721,7 +1723,11 @@ redef class AClassdef
 end
 
 redef class ADeferredMethPropdef
-       redef fun compile_to_c(v, mpropdef, arguments) do v.add_abort("Deferred method called")
+       redef fun compile_to_c(v, mpropdef, arguments) do
+               var cn = v.class_name_string(arguments.first)
+               v.add("fprintf(stderr, \"Runtime error: Abstract method `%s` called on `%s`\", \"{mpropdef.mproperty.name.escape_to_c}\", {cn});")
+               v.add_raw_abort
+       end
        redef fun can_inline do return true
 end
 
@@ -2178,10 +2184,7 @@ redef class AAsCastExpr
                var i = v.expr(self.n_expr, null)
                if v.compiler.modelbuilder.toolcontext.opt_no_check_assert.value then return i
 
-               var cond = v.type_test(i, self.mtype.as(not null), "as")
-               v.add("if (!{cond}) \{")
-               v.add_abort("Cast failed")
-               v.add("\}")
+               v.add_cast(i, self.mtype.as(not null), "as")
                return i
        end
 end