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Introduce special treatment for the blank identifier _

Browse source 
Mostly: Do not instantiate variables within for loops and allow
reusing differently typed blanks which previously wasn't possible.

This may be missing some corner-cases, but the added tests seem
to work as expected and nothing else fell apart it seems.
This commit is contained in:
Arne Welzel 2022-09-30 17:38:00 +02:00
parent 7f7c77ab07
commit 46334f8b59
21 changed files with 318 additions and 20 deletions
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4
src/ID.cc
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@ -114,11 +114,15 @@ ID::ID(const char* arg_name, IDScope arg_scope, bool arg_is_export)
scope = arg_scope;
is_export = arg_is_export;
is_option = false;
is_blank = name && extract_var_name(name) == "_";
is_const = false;
is_enum_const = false;
is_type = false;
offset = 0;
if ( is_blank )
SetType(base_type(TYPE_ANY));
opt_info = new IDOptInfo(this);
infer_return_type = false;