Hello
I can't to find fine syntax for cyclic declaration:
.
typedef Node *(*TransformColumnRef_hook_type) (ParseState *pstate,
ColumnRef *cref);
typedef struct ParseState
{ struct ParseState *parentParseState; /* stack link */ const char *p_sourcetext; /*
sourcetext, or NULL if not
available */ List *p_rtable; /* range table so far */ List *p_joinexprs; /*
JoinExprsfor RTE_JOIN
p_rtable entries */ List *p_joinlist; /* join items so far (will
become FromExpr *
node's fromlist) */ List *p_relnamespace; /* current namespace for relations */ List
*p_varnamespace;/* current namespace for columns */ List *p_ctenamespace; /* current namespace for common
table exprs */ List *p_future_ctes; /* common table exprs not yet
in namespace */ List *p_windowdefs; /* raw representations of
window clauses */ Oid *p_paramtypes; /* OIDs of types for
$n parameter symbols */ int p_numparams; /* allocated size of
p_paramtypes[] */ int p_next_resno; /* next targetlist
resno to assign */ List *p_locking_clause; /* raw FOR UPDATE/FOR
SHARE info */ Node *p_value_substitute; /* what to replace
VALUE with, if any */ bool p_variableparams; bool p_hasAggs; bool
p_hasWindowFuncs; bool p_hasSubLinks; bool p_is_insert; bool
p_is_update; Relation p_target_relation; RangeTblEntry *p_target_rangetblentry;
TransformColumnRef_hook_type transformColumnRef_hook;
} ParseState;
with empty declaration typedef struct ParseState;
I got errors:
In file included from ../../../src/include/catalog/heap.h:18, from parse_clause.c:20:
../../../src/include/parser/parse_node.h:79: warning: useless storage
class specifier in empty declaration
../../../src/include/parser/parse_node.h:81: error: expected ‘)’
before ‘*’ token
../../../src/include/parser/parse_node.h:109: error: expected
specifier-qualifier-list before ‘TransformColumnRef_hook_type’
thank you
Pavel