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Catch case of select expression on non-variable

This commit is contained in:
Nick Gasson 2008-07-24 16:00:12 +01:00
parent d3296d4895
commit 5a09819729
2 changed files with 5 additions and 3 deletions
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2
tgt-vhdl/display.cc
View File

@ -162,7 +162,7 @@ int draw_stask_display(vhdl_procedural *proc, stmt_container *container,
}
else {
vhdl_expr *base = translate_expr(net);
if (NULL == base)
if (NULL == base)
return 1;
display_write(container, base);

6
tgt-vhdl/expr.cc
View File

@ -355,8 +355,10 @@ static vhdl_expr *translate_select(ivl_expr_t e)
{
vhdl_var_ref *from =
dynamic_cast<vhdl_var_ref*>(translate_expr(ivl_expr_oper1(e)));
if (NULL == from)
if (NULL == from) {
error("Can only select from variable reference");
return NULL;
}
ivl_expr_t o2 = ivl_expr_oper2(e);
if (o2) {
@ -454,7 +456,7 @@ vhdl_expr *translate_expr(ivl_expr_t e)
{
assert(e);
ivl_expr_type_t type = ivl_expr_type(e);
switch (type) {
case IVL_EX_STRING:
return translate_string(e);