49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
/* 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 */
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struct node {
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struct node *nd_left;
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#define nd_next nd_left
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struct node *nd_right;
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int nd_class; /* kind of node */
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#define Value 0 /* constant */
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#define Name 1 /* an identifier */
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#define Uoper 2 /* unary operator */
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#define Boper 3 /* binary operator */
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#define Xset 4 /* a set */
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#define Set 5 /* a set constant */
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#define Call 6 /* a function call */
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#define NameOrCall 7 /* call or name of function */
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#define Arrow 8 /* ^ construction */
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#define Arrsel 9 /* array selection */
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#define Def 10 /* an identified name */
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#define Link 11
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#define LinkDef 12
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#define Cast 13 /* convert integer to real */
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#define IntCoerc 14 /* coercion of integers to longs */
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#define IntReduc 15 /* reduction of longs to integers */
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/* do NOT change the order or the numbers!!! */
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struct type *nd_type; /* type of this node */
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struct token nd_token;
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#define nd_def nd_token.tk_data.tk_def
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#define nd_set nd_token.tk_data.tk_set
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#define nd_lab nd_token.tk_data.tk_lab
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#define nd_symb nd_token.tk_symb
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#define nd_lineno nd_token.tk_lineno
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#define nd_IDF nd_token.TOK_IDF
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#define nd_STR nd_token.TOK_STR
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#define nd_SLE nd_token.TOK_SLE
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#define nd_SLA nd_token.TOK_SLA
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#define nd_INT nd_token.TOK_INT
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#define nd_REL nd_token.TOK_REL
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#define nd_RLA nd_token.TOK_RLA
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#define nd_RIV nd_token.TOK_RIV
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};
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/* ALLOCDEF "node" 50 */
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extern struct node *MkNode(), *MkLeaf(), *ChkStdInOut();
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#define IsProcCall(lnd) ((lnd)->nd_type->tp_fund & T_ROUTINE)
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#define NULLNODE ((struct node *) 0)
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