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Merge pull request #834 from DanielGavin/master

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Invalid expression causes segmentation fault in parse_binary_expr in core/odin package
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gingerBill
2021-01-21 16:08:30 +00:00
committed by GitHub
parent 53d8ec4d15 3224869c29
commit e789e1eac1
1 changed files with 6 additions and 0 deletions
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core/odin/parser/parser.odin
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@@ -3064,7 +3064,13 @@ parse_unary_expr :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
return parse_atom_expr(p, parse_operand(p, lhs), lhs); return parse_atom_expr(p, parse_operand(p, lhs), lhs);
} }
parse_binary_expr :: proc(p: ^Parser, lhs: bool, prec_in: int) -> ^ast.Expr { parse_binary_expr :: proc(p: ^Parser, lhs: bool, prec_in: int) -> ^ast.Expr {
start_pos := p.curr_tok.pos;
expr := parse_unary_expr(p, lhs); expr := parse_unary_expr(p, lhs);
if expr == nil {
return ast.new(ast.Bad_Expr, start_pos, end_pos(p.prev_tok));
}
for prec := token_precedence(p, p.curr_tok.kind); prec >= prec_in; prec -= 1 { for prec := token_precedence(p, p.curr_tok.kind); prec >= prec_in; prec -= 1 {
for { for {
op := p.curr_tok; op := p.curr_tok;