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typecheck the panic function

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This commit is contained in:
Andrew Kelley 2018-01-13 01:00:50 -05:00
parent 32ea6f54e5
commit 4551489b92
1 changed files with 7 additions and 3 deletions
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10
src/analyze.cpp
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@ -2584,17 +2584,16 @@ static bool scope_is_root_decls(Scope *scope) {
static void wrong_panic_prototype(CodeGen *g, AstNode *proto_node, TypeTableEntry *fn_type) {
add_node_error(g, proto_node,
buf_sprintf("expected 'fn([]const u8) -> unreachable', found '%s'",
buf_sprintf("expected 'fn([]const u8, ?&builtin.StackTrace) -> unreachable', found '%s'",
buf_ptr(&fn_type->name)));
}
static void typecheck_panic_fn(CodeGen *g, FnTableEntry *panic_fn) {
return; // TODO
AstNode *proto_node = panic_fn->proto_node;
assert(proto_node->type == NodeTypeFnProto);
TypeTableEntry *fn_type = panic_fn->type_entry;
FnTypeId *fn_type_id = &fn_type->data.fn.fn_type_id;
if (fn_type_id->param_count != 1) {
if (fn_type_id->param_count != 2) {
return wrong_panic_prototype(g, proto_node, fn_type);
}
TypeTableEntry *const_u8_ptr = get_pointer_to_type(g, g->builtin_types.entry_u8, true);
@ -2603,6 +2602,11 @@ static void typecheck_panic_fn(CodeGen *g, FnTableEntry *panic_fn) {
return wrong_panic_prototype(g, proto_node, fn_type);
}
TypeTableEntry *nullable_ptr_to_stack_trace_type = get_maybe_type(g, get_ptr_to_stack_trace_type(g));
if (fn_type_id->param_info[1].type != nullable_ptr_to_stack_trace_type) {
return wrong_panic_prototype(g, proto_node, fn_type);
}
TypeTableEntry *actual_return_type = fn_type_id->return_type;
if (actual_return_type != g->builtin_types.entry_unreachable) {
return wrong_panic_prototype(g, proto_node, fn_type);