diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index 53c55be4db7..b1fc802d883 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -6,7 +6,7 @@ * * Copyright (c) 1994, Regents of the University of California * - * $Id: parsenodes.h,v 1.94 2000/01/16 20:04:58 petere Exp $ + * $Id: parsenodes.h,v 1.95 2000/01/17 00:14:48 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -869,6 +869,22 @@ typedef struct A_Const } A_Const; /* + * TypeCast - a CAST expression + * + * NOTE: for mostly historical reasons, A_Const and ParamNo parsenodes contain + * room for a TypeName; we only generate a separate TypeCast node if the + * argument to be casted is neither of those kinds of nodes. In theory either + * representation would work, but it is convenient (especially for A_Const) + * to have the target type immediately available. + */ +typedef struct TypeCast +{ + NodeTag type; + Node *arg; /* the expression being casted */ + TypeName *typename; /* the target type */ +} TypeCast; + +/* * CaseExpr - a CASE expression */ typedef struct CaseExpr |