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Improve missing handled results for built in procedures

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This commit is contained in:
gingerBill
2022-05-30 15:57:26 +01:00
parent 5b42dd7707
commit f3868ac932
4 changed files with 61 additions and 35 deletions
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46
src/check_stmt.cpp
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@@ -1381,6 +1381,18 @@ bool all_operands_valid(Array<Operand> const &operands) {
return true;
}
bool check_stmt_internal_builtin_proc_id(Ast *expr, BuiltinProcId *id_) {
BuiltinProcId id = BuiltinProc_Invalid;
Entity *e = entity_of_node(expr);
if (e != nullptr && e->kind == Entity_Builtin) {
if (e->Builtin.id && e->Builtin.id != BuiltinProc_DIRECTIVE) {
id = cast(BuiltinProcId)e->Builtin.id;
}
}
if (id_) *id_ = id;
return id != BuiltinProc_Invalid;
}
void check_stmt_internal(CheckerContext *ctx, Ast *node, u32 flags) {
u32 mod_flags = flags & (~Stmt_FallthroughAllowed);
switch (node->kind) {
@@ -1408,26 +1420,40 @@ void check_stmt_internal(CheckerContext *ctx, Ast *node, u32 flags) {
Ast *expr = strip_or_return_expr(operand.expr);
if (expr->kind == Ast_CallExpr) {
BuiltinProcId builtin_id = BuiltinProc_Invalid;
bool do_require = false;
AstCallExpr *ce = &expr->CallExpr;
Type *t = base_type(type_of_expr(ce->proc));
if (t->kind == Type_Proc) {
if (t->Proc.require_results) {
gbString expr_str = expr_to_string(ce->proc);
error(node, "'%s' requires that its results must be handled", expr_str);
gb_string_free(expr_str);
}
do_require = t->Proc.require_results;
} else if (check_stmt_internal_builtin_proc_id(ce->proc, &builtin_id)) {
auto const &bp = builtin_procs[builtin_id];
do_require = bp.kind == Expr_Expr && !bp.ignore_results;
}
if (do_require) {
gbString expr_str = expr_to_string(ce->proc);
error(node, "'%s' requires that its results must be handled", expr_str);
gb_string_free(expr_str);
}
return;
} else if (expr->kind == Ast_SelectorCallExpr) {
BuiltinProcId builtin_id = BuiltinProc_Invalid;
bool do_require = false;
AstSelectorCallExpr *se = &expr->SelectorCallExpr;
ast_node(ce, CallExpr, se->call);
Type *t = base_type(type_of_expr(ce->proc));
if (t->kind == Type_Proc) {
if (t->Proc.require_results) {
gbString expr_str = expr_to_string(ce->proc);
error(node, "'%s' requires that its results must be handled", expr_str);
gb_string_free(expr_str);
}
do_require = t->Proc.require_results;
} else if (check_stmt_internal_builtin_proc_id(ce->proc, &builtin_id)) {
auto const &bp = builtin_procs[builtin_id];
do_require = bp.kind == Expr_Expr && !bp.ignore_results;
}
if (do_require) {
gbString expr_str = expr_to_string(ce->proc);
error(node, "'%s' requires that its results must be handled", expr_str);
gb_string_free(expr_str);
}
return;
}