Ekdohibs
/
zig
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

add error for wrong return type of main

master
Andrew Kelley 2016-05-13 13:08:54 -07:00
parent 65e0e85685
commit 33e3d56453
2 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/analyze.cpp
View File

@ -1560,6 +1560,17 @@ static void preview_fn_proto_instance(CodeGen *g, ImportTableEntry *import, AstN
proto_node->data.fn_proto.fn_table_entry = fn_table_entry;
resolve_function_proto(g, proto_node, fn_table_entry, import, containing_context);
if (is_main_fn && !g->link_libc) {
TypeTableEntry *err_void = get_error_type(g, g->builtin_types.entry_void);
TypeTableEntry *actual_return_type = fn_table_entry->type_entry->data.fn.fn_type_id.return_type;
if (actual_return_type != err_void) {
AstNode *return_type_node = fn_table_entry->proto_node->data.fn_proto.return_type;
add_node_error(g, return_type_node,
buf_sprintf("expected return type of main to be '%%void', instead is '%s'",
buf_ptr(&actual_return_type->name)));
}
}
}
static void preview_fn_proto(CodeGen *g, ImportTableEntry *import, AstNode *proto_node) {

4
test/run_tests.cpp
View File

@ -1391,6 +1391,10 @@ fn something() -> %void { }
".tmp_source.zig:3:5: error: %return statement in function with return type 'void'",
".tmp_source.zig:2:8: note: function return type here");
add_compile_fail_case("wrong return type for main", R"SOURCE(
pub fn main(args: [][]u8) { }
)SOURCE", 1, ".tmp_source.zig:2:27: error: expected return type of main to be '%void', instead is 'void'");
}
//////////////////////////////////////////////////////////////////////////////