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Fix of shadowing bug. Allow pointer and subarrays to be constant initialized. Compile time values may now pass around anything considered compile time constant. It's possible to index into an initializer list at compile time. (Some work still remains on this)

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This commit is contained in:
Christoffer Lerno
2021-09-14 11:14:51 +02:00
committed by Christoffer Lerno
parent 1b103a3e22
commit e4c7dde30b
30 changed files with 1209 additions and 343 deletions
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23
src/compiler/sema_decls.c
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@@ -1394,28 +1394,9 @@ bool sema_analyse_var_decl(Context *context, Decl *decl)
if (!sema_analyse_expr_of_required_type(context, decl->type, init_expr, false)) return false;
// 2. Check const-ness
if ((is_global || decl->var.is_static) && !init_expr->constant)
if ((is_global || decl->var.is_static) && !expr_is_constant_eval(init_expr, CONSTANT_EVAL_ANY))
{
// 3. Special case is when the init expression is the reference
// to a constant global structure.
if (init_expr->expr_kind == EXPR_CONST_IDENTIFIER)
{
// 4. If so we copy the init expression, which should always be constant.
*init_expr = *init_expr->identifier_expr.decl->var.init_expr;
assert(init_expr->constant);
}
else
{
if (init_expr->expr_kind == EXPR_CAST)
{
SEMA_ERROR(init_expr, "The expression may not be a non constant cast.");
}
else
{
SEMA_ERROR(init_expr, "The expression must be a constant value.");
}
return false;
}
SEMA_ERROR(init_expr, "The expression must be a constant value.");
}
else
{