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Code generation and runtime for class shallow copy.

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This commit is contained in:
Stephen Williams
2013-04-28 10:10:36 -07:00
parent 8e559e4e91
commit ac78ba588f
10 changed files with 106 additions and 0 deletions
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tgt-vvp/eval_object.c
+20
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@@ -90,6 +90,23 @@ static int eval_object_property(ivl_expr_t expr)
return 0;
}
static int eval_object_shallowcopy(ivl_expr_t ex)
{
ivl_expr_t dest = ivl_expr_oper1(ex);
ivl_expr_t src = ivl_expr_oper2(ex);
draw_eval_object(dest);
draw_eval_object(src);
/* The %scopy opcode pops the top of the object stack as the
source object, and shallow-copies it to the new top, the
destination object. The destination is left on the top of
the stack. */
fprintf(vvp_out, " %%scopy;\n");
return 0;
}
static int eval_object_signal(ivl_expr_t ex)
{
ivl_signal_t sig = ivl_expr_signal(ex);
@@ -125,6 +142,9 @@ int draw_eval_object(ivl_expr_t ex)
case IVL_EX_PROPERTY:
return eval_object_property(ex);
case IVL_EX_SHALLOWCOPY:
return eval_object_shallowcopy(ex);
case IVL_EX_SIGNAL:
return eval_object_signal(ex);