Changeset 538

Timestamp:

07/24/16 13:50:23 (8 years ago)

Author:

Maciej Komosinski

Message:

Value of the assignment statement is now consistently the assigned value. Previously it was the value returned from set() (in cases where set() is used and the assigned expression is not a constant). Interestingly, Dictionary.set() returns the "before" value for the given key, and this created the delayed "assignment propagation" effect.

File:

• cpp/frams/vm/framscript.y (modified) (3 diffs)

cpp/frams/vm/framscript.y

@@ -1184 +1184 @@
                      {
                      if ($6.constant)
-                             {trctx.out->printf("move s0,m1\ncall [m1].\"set\",%s,%s\ninc m0\n",litstr($3),litstr($6));$$=$6;trstack.adjust(+1);}
+                             {trctx.out->printf("move s0,m1\ncall [m1].\"set\",%s,%s\ninc m0\n",litstr($3),litstr($6));trstack.adjust(+1);}
                      else
-                             {trctx.out->printf("move s1,m1\npush s0\nmove %s,s1\ncall [m1].\"set\"\nadd 2,m0\nmove s-2,s0\n",litstr($3));trstack.adjust(+1);}
+                             {trctx.out->printf("move s1,m1\npush s0\npush s0\nmove %s,s1\ncall [m1].\"set\"\nadd 3,m0\nmove s-1,s0\n",litstr($3));trstack.adjust(+1);}
                      }
              else
@@ -1193 +1193 @@
                              {trctx.out->printf("move s1,m1\npush %s\ncall [m1].\"set\"\nadd 3,m0\n",litstr($6)); trstack.adjust(+2);}
                      else
-                             {trctx.out->printf("move s2,m1\ncall [m1].\"set\"\nadd 2,m0\nmove s-2,s0\n"); trstack.adjust(+2);}
+                             {trctx.out->printf("move s2,m1\npush s1\npush s1\ncall [m1].\"set\"\nadd 4,m0\nmove s-2,s0\n"); trstack.adjust(+2);}
                      }
              }
@@ -1276 +1276 @@
                              {trctx.out->printf("move s0,m1\ncall [m1].\"set\",%s,%s\ninc m0\n",litstr($3),litstr($5));$$=$5;trstack.adjust(+1);}
                      else
-                             {trctx.out->printf("move s1,m1\npush s0\nmove %s,s1\ncall [m1].\"set\"\nadd 2,m0\nmove s-2,s0\n",litstr($3));trstack.adjust(+1);}
+                             {trctx.out->printf("move s1,m1\npush s0\npush s0\nmove %s,s1\ncall [m1].\"set\"\nadd 3,m0\nmove s-1,s0\n",litstr($3));trstack.adjust(+1);}
              }