ack/lang/m2/comp/node.H

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/* N O D E O F A N A B S T R A C T P A R S E T R E E */
/* $Header$ */
struct node {
struct node *next;
#define nd_left next
struct node *nd_right;
int nd_class; /* kind of node */
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#define Value 1 /* constant */
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#define Oper 2 /* binary operator */
#define Uoper 3 /* unary operator */
#define Call 4 /* cast or procedure - or function call */
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#define Name 5 /* an identifier */
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#define Set 6 /* a set constant */
#define Xset 7 /* a set */
#define Def 8 /* an identified name */
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#define Stat 9 /* a statement */
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#define Link 11
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struct type *nd_type; /* type of this node */
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struct token nd_token;
#define nd_set nd_token.tk_data.tk_set
#define nd_def nd_token.tk_data.tk_def
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#define nd_lab nd_token.tk_data.tk_lab
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#define nd_symb nd_token.tk_symb
#define nd_lineno nd_token.tk_lineno
#define nd_IDF nd_token.TOK_IDF
#define nd_STR nd_token.TOK_STR
#define nd_SLE nd_token.TOK_SLE
#define nd_INT nd_token.TOK_INT
#define nd_REL nd_token.TOK_REL
};
/* ALLOCDEF "node" */
extern struct node *MkNode();
#define NULLNODE ((struct node *) 0)
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#define DESIGNATOR 1
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#define HASSELECTORS 2
#define VARIABLE 4
#define VALUE 8