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+/************************************************
+
+ node.h -
+
+ $Author: matz $
+ $Date: 1994/06/17 14:23:50 $
+ created at: Fri May 28 15:14:02 JST 1993
+
+ Copyright (C) 1994 Yukihiro Matsumoto
+
+************************************************/
+
+#ifndef NODE_H
+#define NODE_H
+
+enum node_type {
+ NODE_CFUNC,
+ NODE_SCOPE,
+ NODE_BLOCK,
+ NODE_IF,
+ NODE_CASE,
+ NODE_WHEN,
+ NODE_UNLESS,
+ NODE_WHILE,
+ NODE_UNTIL,
+ NODE_DO,
+ NODE_FOR,
+ NODE_PROT,
+ NODE_AND,
+ NODE_OR,
+ NODE_MASGN,
+ NODE_LASGN,
+ NODE_GASGN,
+ NODE_IASGN,
+ NODE_CASGN,
+ NODE_CALL,
+ NODE_CALL2,
+ NODE_SUPER,
+ NODE_ZSUPER,
+ NODE_ARRAY,
+ NODE_ZARRAY,
+ NODE_HASH,
+ NODE_REDO,
+ NODE_BREAK,
+ NODE_CONTINUE,
+ NODE_RETURN,
+ NODE_RETRY,
+ NODE_YIELD,
+ NODE_LVAR,
+ NODE_GVAR,
+ NODE_IVAR,
+ NODE_MVAR,
+ NODE_CVAR,
+ NODE_CONST,
+ NODE_LIT,
+ NODE_STR,
+ NODE_ARGS,
+ NODE_DEFN,
+ NODE_DEFS,
+ NODE_ALIAS,
+ NODE_UNDEF,
+ NODE_CLASS,
+ NODE_MODULE,
+ NODE_INC,
+ NODE_DOT3,
+ NODE_ATTRSET,
+ NODE_SELF,
+ NODE_NIL,
+};
+
+typedef struct node {
+ enum node_type type;
+ char *src;
+ unsigned int line;
+ union {
+ struct node *node;
+ ID id;
+ VALUE value;
+ VALUE (*cfunc)();
+ ID *tbl;
+ enum mth_scope scope;
+ } u1;
+ union {
+ struct node *node;
+ ID id;
+ int argc;
+ } u2;
+ union {
+ struct node *node;
+ ID id;
+ int state;
+ struct global_entry *entry;
+ int cnt;
+ VALUE value;
+ } u3;
+} NODE;
+
+#define nd_head u1.node
+#define nd_last u2.node
+#define nd_next u3.node
+
+#define nd_cond u1.node
+#define nd_body u2.node
+#define nd_else u3.node
+#define nd_break u3.state
+
+#define nd_resq u2.node
+#define nd_ensr u3.node
+
+#define nd_1st u1.node
+#define nd_2nd u2.node
+
+#define nd_stts u1.node
+
+#define nd_entry u3.entry
+#define nd_vid u1.id
+#define nd_cflag u2.id
+#define nd_cval u3.value
+
+#define nd_cnt u3.cnt
+#define nd_tbl u1.tbl
+
+#define nd_var u1.node
+#define nd_ibdy u2.node
+#define nd_iter u3.node
+
+#define nd_value u2.node
+
+#define nd_lit u1.value
+
+#define nd_frml u1.node
+#define nd_rest u2.argc
+
+#define nd_recv u1.node
+#define nd_mid u2.id
+#define nd_args u3.node
+
+#define nd_scope u1.scope
+#define nd_defn u3.node
+
+#define nd_new u1.id
+#define nd_old u2.id
+
+#define nd_cfnc u1.cfunc
+#define nd_argc u2.argc
+
+#define nd_cname u1.id
+#define nd_super u3.id
+
+#define nd_modl u1.id
+
+#define nd_beg u1.node
+#define nd_end u2.node
+#define nd_state u3.state
+
+#define nd_rval u3.node
+
+#define NEW_DEFN(i,d,m) newnode(NODE_DEFN,m,i,d)
+#define NEW_DEFS(r,i,d) newnode(NODE_DEFS,r,i,d)
+#define NEW_CFUNC(f,c) newnode(NODE_CFUNC,f,c,Qnil)
+#define NEW_RFUNC(b1,b2) NEW_SCOPE(block_append(b1,b2))
+#define NEW_SCOPE(b) newnode(NODE_SCOPE, local_tbl(),(b),local_cnt(0))
+#define NEW_BLOCK(a) newnode(NODE_BLOCK,a,Qnil,Qnil)
+#define NEW_IF(c,t,e) newnode(NODE_IF,c,t,e)
+#define NEW_UNLESS(c,t,e) newnode(NODE_UNLESS,c,t,e)
+#define NEW_CASE(h,b) newnode(NODE_CASE,h,b,Qnil)
+#define NEW_WHEN(c,t,e) newnode(NODE_WHEN,c,t,e)
+#define NEW_WHILE(c,b) newnode(NODE_WHILE,c,b,Qnil)
+#define NEW_UNTIL(c,b) newnode(NODE_UNTIL,c,b,Qnil)
+#define NEW_FOR(v,i,b) newnode(NODE_FOR,v,b,i)
+#define NEW_DO(v,i,b) newnode(NODE_DO,v,b,i)
+#define NEW_PROT(b,ex,en) newnode(NODE_PROT,b,ex,en)
+#define NEW_REDO() newnode(NODE_REDO,Qnil,Qnil,Qnil)
+#define NEW_BREAK() newnode(NODE_BREAK,Qnil,Qnil,Qnil)
+#define NEW_CONT() newnode(NODE_CONTINUE,Qnil,Qnil,Qnil)
+#define NEW_RETRY() newnode(NODE_RETRY,Qnil,Qnil,Qnil)
+#define NEW_RET(s) newnode(NODE_RETURN,s,Qnil,Qnil)
+#define NEW_YIELD(a) newnode(NODE_YIELD,a,Qnil,Qnil)
+#define NEW_LIST(a) NEW_ARRAY(a)
+#define NEW_ARRAY(a) newnode(NODE_ARRAY,a,Qnil,Qnil)
+#define NEW_ZARRAY() newnode(NODE_ZARRAY,Qnil,Qnil,Qnil)
+#define NEW_HASH(a) newnode(NODE_HASH,a,Qnil,Qnil)
+#define NEW_AND(a,b) newnode(NODE_AND,a,b,Qnil)
+#define NEW_OR(a,b) newnode(NODE_OR,a,b,Qnil)
+#define NEW_MASGN(l,val) newnode(NODE_MASGN,l,val,Qnil)
+#define NEW_GASGN(v,val) newnode(NODE_GASGN,v,val,rb_global_entry(v))
+#define NEW_LASGN(v,val) newnode(NODE_LASGN,v,val,local_cnt(v))
+#define NEW_IASGN(v,val) newnode(NODE_IASGN,v,val,Qnil)
+#define NEW_CASGN(v,val) newnode(NODE_CASGN,v,val,Qnil)
+#define NEW_GVAR(v) newnode(NODE_GVAR,v,Qnil,rb_global_entry(v))
+#define NEW_LVAR(v) newnode(NODE_LVAR,v,Qnil,local_cnt(v))
+#define NEW_IVAR(v) newnode(NODE_IVAR,v,Qnil,Qnil)
+#define NEW_MVAR(v) newnode(NODE_MVAR,v,Qnil,Qnil)
+#define NEW_CVAR(v) newnode(NODE_CVAR,v,Qnil,Qnil)
+#define NEW_LIT(l) newnode(NODE_LIT,l,Qnil,Qnil)
+#define NEW_STR(s) newnode(NODE_STR,s,Qnil,Qnil)
+#define NEW_CALL(r,m,a) newnode(NODE_CALL,r,m,a)
+#define NEW_CALL2(r,m,a) newnode(NODE_CALL2,r,m,a)
+#define NEW_SUPER(a) newnode(NODE_SUPER,Qnil,Qnil,a)
+#define NEW_ZSUPER() newnode(NODE_ZSUPER,Qnil,Qnil,Qnil)
+#define NEW_ARGS(f,r) newnode(NODE_ARGS,f,r,Qnil)
+#define NEW_ALIAS(n,o) newnode(NODE_ALIAS,n,o,Qnil)
+#define NEW_UNDEF(i) newnode(NODE_UNDEF,Qnil,i,Qnil)
+#define NEW_CLASS(n,b,s) newnode(NODE_CLASS,n,NEW_SCOPE(b),s)
+#define NEW_MODULE(n,b) newnode(NODE_MODULE,n,NEW_SCOPE(b),Qnil)
+#define NEW_INC(m) newnode(NODE_INC,m,Qnil,Qnil)
+#define NEW_DOT3(b,e) newnode(NODE_DOT3,b,e,0)
+#define NEW_ATTRSET(a) newnode(NODE_ATTRSET,a,Qnil,Qnil)
+#define NEW_SELF() newnode(NODE_SELF,Qnil,Qnil,Qnil)
+#define NEW_NIL() newnode(NODE_NIL,Qnil,Qnil,Qnil)
+
+NODE *newnode();
+NODE *rb_get_method_body();
+void freenode();
+
+#endif