motiejus/zig
1
Fork 0
Code Releases Activity

parse.zig: report error for extern fn with body

Browse Source
This commit is contained in:
Matthew Borkowski
2021-10-26 20:05:38 -04:00
parent 8081e3cbc7
commit c8a066f408
2 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
lib/std/zig/parse.zig
View File

@@ -532,11 +532,13 @@ const Parser = struct {
/// / KEYWORD_usingnamespace Expr SEMICOLON
fn expectTopLevelDecl(p: *Parser) !Node.Index {
const extern_export_inline_token = p.nextToken();
var is_extern: bool = false;
var expect_fn: bool = false;
var expect_var_or_fn: bool = false;
switch (p.token_tags[extern_export_inline_token]) {
.keyword_extern => {
_ = p.eatToken(.string_literal);
is_extern = true;
expect_var_or_fn = true;
},
.keyword_export => expect_var_or_fn = true,
@@ -554,6 +556,10 @@ const Parser = struct {
const fn_decl_index = try p.reserveNode();
const body_block = try p.parseBlock();
assert(body_block != 0);
if (is_extern) {
try p.warnMsg(.{ .tag = .extern_fn_body, .token = extern_export_inline_token });
return null_node;
}
return p.setNode(fn_decl_index, .{
.tag = .fn_decl,
.main_token = p.nodes.items(.main_token)[fn_proto],