Merge: iOS support

Adds a target platform in the compiler which generates an XCode project for iOS applications.

Intro the `ios` projet to group services for iOS. It implements the callbacks expected by the iOS system for a basic graphical application. It also triggers compilation for the iOS platform.

Adds one example of a graphical application `hello_ios` and a very minimal test for the iOS platform.

This is still very much a work in progress, you will notice many TODO in the code. Here are some of the next features to implement:
* Extend support to all iOS devices, not only the iPhone in the simulator.
* Reorganize annotations for app.nit: app_name, package_name, and maybe organization_name.
* Add more services of the Cocoa touch library and rewrite the `hello_ios` app in Nit.
* Support assets and other game related features.
* Some cleanup of the generated XCode project files could be a good thing.

Pull-Request: #1227
Reviewed-by: Jean Privat <jean@pryen.org>
Reviewed-by: Lucas Bajolet <r4pass@hotmail.com>
Reviewed-by: Romain Chanoir <chanoir.romain@courrier.uqam.ca>

diff --git a/lib/standard/exec_nit.c b/lib/standard/exec_nit.c
index 5b5ffbb..93f5f9b 100644 (file)
--- a/lib/standard/exec_nit.c
+++ b/lib/standard/exec_nit.c
@@ -149,4 +149,5 @@ int string_NativeString_NativeString_system_0(const char *cmd) {
                // cmd exited on SIGINT: in my opinion the user wants the main to be discontinued
                kill(getpid(), SIGINT);
        }
+       return status;
 }

diff --git a/lib/standard/string.nit b/lib/standard/string.nit
index 4892f95..e974d91 100644 (file)
--- a/lib/standard/string.nit
+++ b/lib/standard/string.nit
@@ -531,6 +531,14 @@ abstract class Text
        #
        #     assert "abAB12<>&".escape_to_c         == "abAB12<>&"
        #     assert "\n\"'\\".escape_to_c         == "\\n\\\"\\'\\\\"
+       #
+       # Most non-printable characters (bellow ASCII 32) are escaped to an octal form `\nnn`.
+       # Three digits are always used to avoid following digits to be interpreted as an element
+       # of the octal sequence.
+       #
+       #     assert "{0.ascii}{1.ascii}{8.ascii}{31.ascii}{32.ascii}".escape_to_c == "\\000\\001\\010\\037 "
+       #
+       # The exceptions are the common `\t` and `\n`.
        fun escape_to_c: String
        do
                var b = new FlatBuffer
@@ -538,8 +546,10 @@ abstract class Text
                        var c = chars[i]
                        if c == '\n' then
                                b.append("\\n")
+                       else if c == '\t' then
+                               b.append("\\t")
                        else if c == '\0' then
-                               b.append("\\0")
+                               b.append("\\000")
                        else if c == '"' then
                                b.append("\\\"")
                        else if c == '\'' then
@@ -547,7 +557,17 @@ abstract class Text
                        else if c == '\\' then
                                b.append("\\\\")
                        else if c.ascii < 32 then
-                               b.append("\\{c.ascii.to_base(8, false)}")
+                               b.add('\\')
+                               var oct = c.ascii.to_base(8, false)
+                               # Force 3 octal digits since it is the
+                               # maximum allowed in the C specification
+                               if oct.length == 1 then
+                                       b.add('0')
+                                       b.add('0')
+                               else if oct.length == 2 then
+                                       b.add('0')
+                               end
+                               b.append(oct)
                        else
                                b.add(c)
                        end

diff --git a/src/compiler/abstract_compiler.nit b/src/compiler/abstract_compiler.nit
index 9842d1d..311d71b 100644 (file)
--- a/src/compiler/abstract_compiler.nit
+++ b/src/compiler/abstract_compiler.nit
@@ -608,6 +608,8 @@ abstract class AbstractCompiler
                self.header.add_decl("#include <stdlib.h>")
                self.header.add_decl("#include <stdio.h>")
                self.header.add_decl("#include <string.h>")
+               self.header.add_decl("#include <sys/types.h>\n")
+               self.header.add_decl("#include <unistd.h>\n")
                self.header.add_decl("#include \"gc_chooser.h\"")
                self.header.add_decl("#ifdef ANDROID")
                self.header.add_decl("  #include <android/log.h>")

diff --git a/src/compiler/separate_compiler.nit b/src/compiler/separate_compiler.nit
index ecfcc8e..f590c1a 100644 (file)
--- a/src/compiler/separate_compiler.nit
+++ b/src/compiler/separate_compiler.nit
@@ -2266,7 +2266,7 @@ class SeparateRuntimeFunction
                        var v2 = compiler.new_visitor
                        v2.add "{c_ret} {n2}{c_sig} \{"
                        v2.require_declaration(m.const_color)
-                       var call = "(({c_funptrtype})({selfvar}->class->vft[{m.const_color}]))({arguments.join(", ")});"
+                       var call = "(({c_funptrtype})({v2.class_info(selfvar)}->vft[{m.const_color}]))({arguments.join(", ")});"
                        if ret != null then
                                v2.add "return {call}"
                        else
@@ -2283,7 +2283,7 @@ class SeparateRuntimeFunction
                        var v2 = compiler.new_visitor
                        v2.add "{c_ret} {n2}{c_sig} \{"
                        v2.require_declaration(m.const_color)
-                       var call = "(({c_funptrtype})({selfvar}->class->vft[{m.const_color}]))({arguments.join(", ")});"
+                       var call = "(({c_funptrtype})({v2.class_info(selfvar)}->vft[{m.const_color}]))({arguments.join(", ")});"
                        if ret != null then
                                v2.add "return {call}"
                        else

diff --git a/tests/sav/test_parser_args1.res b/tests/sav/test_parser_args1.res
index 36503ed..3e3247e 100644 (file)
--- a/tests/sav/test_parser_args1.res
+++ b/tests/sav/test_parser_args1.res
@@ -475,7 +475,7 @@ Start ../src/test_parser.nit:17,1--147,1
                 AParExprs ../src/test_parser.nit:71,7--36
                   TOpar "(" ../src/test_parser.nit:71,7
                   AStringExpr ../src/test_parser.nit:71,8--35
-                    TString "\"  -n\11do not print anything\"" ../src/test_parser.nit:71,8--35
+                    TString "\"  -n\tdo not print anything\"" ../src/test_parser.nit:71,8--35
                   TCpar ")" ../src/test_parser.nit:71,36
               ACallExpr ../src/test_parser.nit:72,2--25
                 AImplicitSelfExpr ../src/test_parser.nit:72,2
@@ -483,7 +483,7 @@ Start ../src/test_parser.nit:17,1--147,1
                 AParExprs ../src/test_parser.nit:72,7--25
                   TOpar "(" ../src/test_parser.nit:72,7
                   AStringExpr ../src/test_parser.nit:72,8--24
-                    TString "\"  -l\11only lexer\"" ../src/test_parser.nit:72,8--24
+                    TString "\"  -l\tonly lexer\"" ../src/test_parser.nit:72,8--24
                   TCpar ")" ../src/test_parser.nit:72,25
               ACallExpr ../src/test_parser.nit:73,2--41
                 AImplicitSelfExpr ../src/test_parser.nit:73,2
@@ -491,7 +491,7 @@ Start ../src/test_parser.nit:17,1--147,1
                 AParExprs ../src/test_parser.nit:73,7--41
                   TOpar "(" ../src/test_parser.nit:73,7
                   AStringExpr ../src/test_parser.nit:73,8--40
-                    TString "\"  -p\11lexer and parser (default)\"" ../src/test_parser.nit:73,8--40
+                    TString "\"  -p\tlexer and parser (default)\"" ../src/test_parser.nit:73,8--40
                   TCpar ")" ../src/test_parser.nit:73,41
               ACallExpr ../src/test_parser.nit:74,2--68
                 AImplicitSelfExpr ../src/test_parser.nit:74,2
@@ -499,7 +499,7 @@ Start ../src/test_parser.nit:17,1--147,1
                 AParExprs ../src/test_parser.nit:74,7--68
                   TOpar "(" ../src/test_parser.nit:74,7
                   AStringExpr ../src/test_parser.nit:74,8--67
-                    TString "\"  -e\11instead on files, each argument is a content to parse\"" ../src/test_parser.nit:74,8--67
+                    TString "\"  -e\tinstead on files, each argument is a content to parse\"" ../src/test_parser.nit:74,8--67
                   TCpar ")" ../src/test_parser.nit:74,68
               ACallExpr ../src/test_parser.nit:75,2--51
                 AImplicitSelfExpr ../src/test_parser.nit:75,2
@@ -507,7 +507,7 @@ Start ../src/test_parser.nit:17,1--147,1
                 AParExprs ../src/test_parser.nit:75,7--51
                   TOpar "(" ../src/test_parser.nit:75,7
                   AStringExpr ../src/test_parser.nit:75,8--50
-                    TString "\"  -i\11tree to parse are read interactively\"" ../src/test_parser.nit:75,8--50
+                    TString "\"  -i\ttree to parse are read interactively\"" ../src/test_parser.nit:75,8--50
                   TCpar ")" ../src/test_parser.nit:75,51
               ACallExpr ../src/test_parser.nit:76,2--30
                 AImplicitSelfExpr ../src/test_parser.nit:76,2
@@ -515,7 +515,7 @@ Start ../src/test_parser.nit:17,1--147,1
                 AParExprs ../src/test_parser.nit:76,7--30
                   TOpar "(" ../src/test_parser.nit:76,7
                   AStringExpr ../src/test_parser.nit:76,8--29
-                    TString "\"  -h\11print this help\"" ../src/test_parser.nit:76,8--29
+                    TString "\"  -h\tprint this help\"" ../src/test_parser.nit:76,8--29
                   TCpar ")" ../src/test_parser.nit:76,30
             AIfExpr ../src/test_parser.nit:77,6--146,3
               TKwif "if" ../src/test_parser.nit:77,6--7