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Add check for null body in if, for and while

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This commit is contained in:
SamTebbs33
2019-06-08 15:58:11 +01:00
committed by Andrew Kelley
parent 39bc82561a
commit 6c160b8856
2 changed files with 42 additions and 0 deletions
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15
src/parser.cpp
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@@ -890,6 +890,11 @@ static AstNode *ast_parse_if_statement(ParseContext *pc) {
body = ast_parse_assign_expr(pc);
}
if (body == nullptr) {
Token *tok = eat_token(pc);
ast_error(pc, tok, "expected if body, found '%s'", token_name(tok->id));
}
Token *err_payload = nullptr;
AstNode *else_body = nullptr;
if (eat_token_if(pc, TokenIdKeywordElse) != nullptr) {
@@ -994,6 +999,11 @@ static AstNode *ast_parse_for_statement(ParseContext *pc) {
body = ast_parse_assign_expr(pc);
}
if (body == nullptr) {
Token *tok = eat_token(pc);
ast_error(pc, tok, "expected loop body, found '%s'", token_name(tok->id));
}
AstNode *else_body = nullptr;
if (eat_token_if(pc, TokenIdKeywordElse) != nullptr) {
else_body = ast_expect(pc, ast_parse_statement);
@@ -1023,6 +1033,11 @@ static AstNode *ast_parse_while_statement(ParseContext *pc) {
body = ast_parse_assign_expr(pc);
}
if (body == nullptr) {
Token *tok = eat_token(pc);
ast_error(pc, tok, "expected loop body, found '%s'", token_name(tok->id));
}
Token *err_payload = nullptr;
AstNode *else_body = nullptr;
if (eat_token_if(pc, TokenIdKeywordElse) != nullptr) {