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56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/*-------------------------------------------------------------------------
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*
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* parse_func.h
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*
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*
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: parse_func.h,v 1.14 1999/02/13 23:21:57 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PARSER_FUNC_H
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#define PARSER_FUNC_H
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#include <nodes/nodes.h>
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#include <nodes/pg_list.h>
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#include <nodes/parsenodes.h>
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#include <nodes/primnodes.h>
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#include <parser/parse_func.h>
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#include <parser/parse_node.h>
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/*
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* This structure is used to explore the inheritance hierarchy above
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* nodes in the type tree in order to disambiguate among polymorphic
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* functions.
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*/
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typedef struct _InhPaths
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{
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int nsupers; /* number of superclasses */
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Oid self; /* this class */
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Oid *supervec; /* vector of superclasses */
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} InhPaths;
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/*
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* This structure holds a list of possible functions or operators that
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* agree with the known name and argument types of the function/operator.
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*/
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typedef struct _CandidateList
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{
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Oid *args;
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struct _CandidateList *next;
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} *CandidateList;
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extern Node *
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ParseNestedFuncOrColumn(ParseState *pstate, Attr *attr,
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int *curr_resno, int precedence);
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extern Node *
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ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
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int *curr_resno, int precedence);
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extern void
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func_error(char *caller, char *funcname, int nargs, Oid *argtypes, char *msg);
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#endif /* PARSE_FUNC_H */
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