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Support for stack overflow and infinite recursion detection in new

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parser
This commit is contained in:
ridiculousfish
2014-01-01 15:29:56 -08:00
parent 27cba56761
commit fb882f0b69
10 changed files with 204 additions and 46 deletions
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10
parse_tree.h
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@@ -209,7 +209,13 @@ class parse_node_tree_t : public std::vector<parse_node_t>
enum token_type type_for_redirection(const parse_node_t &node, const wcstring &src, int *out_fd, wcstring *out_target) const;
/* If the given node is a block statement, returns the header node (for_header, while_header, begin_header, or function_header). Otherwise returns NULL */
const parse_node_t *header_node_for_block_statement(const parse_node_t &node);
const parse_node_t *header_node_for_block_statement(const parse_node_t &node) const;
/* Given a job list, returns the next job (or NULL), and the tail of the job list. */
const parse_node_t *next_job_in_job_list(const parse_node_t &job_list, const parse_node_t **list_tail) const;
/* Given a job, return all of its statements. These are 'specific statements' (e.g. symbol_decorated_statement, not symbol_statement) */
parse_node_list_t specific_statements_for_job(const parse_node_t &job) const;
};
/* Fish grammar:
@@ -252,7 +258,7 @@ class parse_node_tree_t : public std::vector<parse_node_t>
while_header = WHILE job
begin_header = BEGIN
# Functions take arguments, and require at least one (the name)
# Functions take arguments, and require at least one (the name). No redirections allowed.
function_header = FUNCTION argument argument_list
# A boolean statement is AND or OR or NOT