eolian: add mstring

This is a new type representing a mutable string (no const).
Regular strings cannot be made mutable with @owned because
they might be hidden behind typedefs.

src/lib/ecore_con/efl_net_dialer_http.eo

@@ -383,7 +383,7 @@ class Efl.Net.Dialer.Http (Efl.Loop_User, Efl.Net.Dialer, Efl.Io.Sizer) {
             params {
                 epochtime: int64; [[UNIX Epoch time - seconds since 1/1/1970]]
             }
-            return: string @owned @warn_unused; [[Newly allocated null-terminated string on success or NULL on errors]]
+            return: mstring @owned @warn_unused; [[Newly allocated null-terminated string on success or NULL on errors]]
         }
     }
 

src/lib/elementary/efl_access_action.eo

@@ -59,7 +59,7 @@ mixin Efl.Access.Action ()
          params {
             @in id: int; [[ID for widget]]
          }
-         return: string @owned @warn_unused; [[Should be freed by the user.]]
+         return: mstring @owned @warn_unused; [[Should be freed by the user.]]
       }
    }
 }

src/lib/elementary/elm_entry.eo

@@ -632,7 +632,7 @@ class Elm.Entry (Efl.Ui.Layout, Elm.Interface_Scrollable, Efl.Ui.Clickable,
               Only the text is returned, any format that may exist will not be part
               of the return value. You must free the string when done with \@ref free.
             ]]
-            return: string @owned @warn_unused; [[Character]]
+            return: mstring @owned @warn_unused; [[Character]]
          }
       }
       @property selection {

src/lib/elementary/elm_interface_atspi_text.eo

@@ -70,7 +70,7 @@ interface Elm.Interface.Atspi.Text ()
             end_offset: ptr(int); [[Offset indicating end of string according to given granularity. -1 in case of error.]]
          }
          values {
-            string: string @owned; [[Newly allocated UTF-8 encoded string. Must be free by a user.]]
+            string: mstring @owned; [[Newly allocated UTF-8 encoded string. Must be free by a user.]]
          }
       }
       @property text @protected {
@@ -82,7 +82,7 @@ interface Elm.Interface.Atspi.Text ()
             end_offset: int; [[End offset of text.]]
          }
          values {
-            text: string @owned; [[UTF-8 encoded text.]]
+            text: mstring @owned; [[UTF-8 encoded text.]]
          }
       }
       @property caret_offset @protected {
@@ -108,7 +108,7 @@ interface Elm.Interface.Atspi.Text ()
             end_offset: ptr(int); [[Position in text to which given attribute is set.]]
          }
          values {
-            value: string @owned; [[Value of text attribute. Should be free()]]
+            value: mstring @owned; [[Value of text attribute. Should be free()]]
          }
       }
       @property attributes @protected {

src/lib/elementary/elm_web.eo

@@ -339,8 +339,8 @@ class Elm.Web (Elm.Widget)
               The string returned must be freed by the user when it's done
               with it.
             ]]
-            /* FIXME: const doesn't belong here */
-            return: const(string) @owned @warn_unused; [[A newly allocated string, or
+            /* FIXME: owned const string? */
+            return: string @owned @warn_unused; [[A newly allocated string, or
                                                       $null if nothing is selected
                                                       or an error occurred.]]
          }

src/lib/eolian/database_type.c

@@ -146,12 +146,7 @@ database_type_to_str(const Eolian_Type *tp, Eina_Strbuf *buf, const char *name,
           }
         int kw = eo_lexer_keyword_str_to_id(tp->name);
         if (kw && eo_lexer_is_type_keyword(kw))
-          {
-             /* FIXME: deal with aliased strings? */
-             if ((kw == KW_string) && !tp->owned)
-               eina_strbuf_append(buf, "const ");
-             eina_strbuf_append(buf, eo_lexer_get_c_type(kw));
-          }
+          eina_strbuf_append(buf, eo_lexer_get_c_type(kw));
         else
           eina_strbuf_append(buf, tp->name);
      }

src/lib/eolian/eo_lexer.c

@@ -75,7 +75,7 @@ static const char * const ctypes[] =
 
    "Eina_Accessor", "Eina_Array", "Eina_Iterator", "Eina_Hash", "Eina_List",
    "Efl_Future",
-   "Eina_Value", "char *", "Eina_Stringshare *",
+   "Eina_Value", "char *", "const char *", "Eina_Stringshare *",
 
    "void *",
 

src/lib/eolian/eo_lexer.h

@@ -54,7 +54,8 @@ enum Tokens
     \
     KW(accessor), KW(array), KW(iterator), KW(hash), KW(list), \
     KW(future),                                   \
-    KW(generic_value), KW(string), KW(stringshare), \
+    KW(generic_value), \
+    KW(mstring), KW(string), KW(stringshare), \
     \
     KW(void_ptr), \
     KW(__builtin_free_cb), \

src/lib/evas/canvas/efl_canvas_text.eo

@@ -159,7 +159,7 @@ Efl.Text.Font, Efl.Text.Style, Efl.Text.Format, Efl.Text.Cursor, Efl.Text.Annota
            @since 1.18
          ]]
          legacy: null;
-         return: string @owned; [[The text in the given range]]
+         return: mstring @owned; [[The text in the given range]]
          params {
             @in cur1: const(ptr(Efl.Text.Cursor.Cursor)); [[Start of range]]
             @in cur2: const(ptr(Efl.Text.Cursor.Cursor)); [[End of range]]

src/tests/eolian/data/complex_type.eo

@@ -12,7 +12,7 @@ class Complex_Type {
       }
       foo {
          params {
-            buf: string @owned;
+            buf: mstring @owned;
          }
          return: list<stringshare> @owned; [[comment for method return]]
       }

src/tests/eolian/data/decl.eo

@@ -16,7 +16,7 @@ class Decl {
          params {
             idx: int;
          }
-         return: string @owned;
+         return: mstring @owned;
       }
    }
 }

src/tests/eolian/data/enum.eo

@@ -39,7 +39,7 @@ class Enum {
             params {
                 idx: int;
             }
-            return: string @owned;
+            return: mstring @owned;
         }
     }
 }

src/tests/eolian/data/extern.eo

@@ -22,7 +22,7 @@ class Extern {
          params {
             idx: int;
          }
-         return: string @owned;
+         return: mstring @owned;
       }
    }
 }

src/tests/eolian/data/free_func.eo

@@ -24,7 +24,7 @@ class Free_Func {
          params {
             idx: int;
          }
-         return: string @owned;
+         return: mstring @owned;
       }
    }
 }

src/tests/eolian/data/function_as_argument.eo

@@ -19,7 +19,7 @@ class Function_As_Argument {
         a: int;
         b: double;
       }
-      return: string @owned;
+      return: mstring @owned;
     }
   }
 }

src/tests/eolian/data/function_types.eot

@@ -16,7 +16,7 @@ function SimpleFunc {
 function ComplexFunc {
   params {
     @in c: string;
-    @out d: string @owned;
+    @out d: mstring @owned;
   }
   return: double;
 };

src/tests/eolian/data/struct.eo

@@ -23,7 +23,7 @@ class Struct {
          params {
             idx: int;
          }
-         return: string @owned;
+         return: mstring @owned;
       }
       bar {
          return: ptr(Named);

src/tests/eolian/data/typedef.eo

@@ -33,7 +33,7 @@ class Typedef {
          params {
             idx: int;
          }
-         return: string @owned;
+         return: mstring @owned;
       }
    }
 }

src/tests/eolian/data/var.eo

@@ -16,7 +16,7 @@ class Var {
          params {
             idx: int;
          }
-         return: string @owned;
+         return: mstring @owned;
       }
    }
 }

src/tests/eolian_cxx/complex.eo

@@ -40,7 +40,7 @@ class Complex (Efl.Object)
       }
       instringowncont {
          params {
-           l: list<string @owned>;
+           l: list<mstring @owned>;
          }
       }
       instringcontown {
@@ -121,7 +121,7 @@ class Complex (Efl.Object)
       }
       outstringowncont {
          params {
-           @out l: list<string @owned>;
+           @out l: list<mstring @owned>;
          }
       }
       outstringcontown {

src/tests/eolian_cxx/name1_name2_type_generation.eo

@@ -56,7 +56,7 @@ class Name1.Name2.Type_Generation (Efl.Object)
      }
      instringown {
        params {
-         @in v: string @owned;
+         @in v: mstring @owned;
        }
      }
      instringptrown {
@@ -102,7 +102,7 @@ class Name1.Name2.Type_Generation (Efl.Object)
        return: ptr(string);
      }
      returnstringown {
-       return: string @owned;
+       return: mstring @owned;
      }
      returnstringownptr {
        return: ptr(string) @owned;