diff options
Diffstat (limited to 'src/parser.cpp')
| -rw-r--r-- | src/parser.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/parser.cpp b/src/parser.cpp index 5796012d9..6461c9dd0 100644 --- a/src/parser.cpp +++ b/src/parser.cpp @@ -4532,6 +4532,12 @@ gb_internal Ast *parse_if_stmt(AstFile *f) { return ast_bad_stmt(f, f->curr_token, f->curr_token); } + if (f->recursion_depth_else_if > 256) { + syntax_error(f->curr_token, "if-else chain recursion depth limit hit. Consider using a 'switch' statement instead or refactor the code to not require a large if-else chain"); + f->recursion_depth_else_if = 0; + return ast_bad_stmt(f, f->curr_token, f->curr_token); + } + Token token = expect_token(f, Token_if); Ast *init = nullptr; Ast *cond = nullptr; @@ -4577,7 +4583,9 @@ gb_internal Ast *parse_if_stmt(AstFile *f) { Token else_token = expect_token(f, Token_else); switch (f->curr_token.kind) { case Token_if: + f->recursion_depth_else_if += 1; else_stmt = parse_if_stmt(f); + f->recursion_depth_else_if -= 1; break; case Token_OpenBrace: else_stmt = parse_block_stmt(f, false); |