173 lines
6 KiB
C
173 lines
6 KiB
C
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/*
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** Tree types
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*/
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#define TTfree 0x0
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#define TTconstant 0x01
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#define TTsymbol 0x02
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#define TTunary 0x04
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#define TTleaf 0x08
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#define TTbinary 0x10
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#define TThybrid 0x20
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#define TTBasicShape (TTfree|TTconstant|TTsymbol|TTunary|TTbinary|TThybrid)
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#define TTzero 0x40
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typedef USHORT p2type_t;
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typedef p2type_t *pp2type_t;
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typedef struct tree_200 {
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ptree_t tr_left; /* left child */
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ptree_t tr_right; /* right child */
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} tree_200_st;
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typedef struct tree_190 {
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ptree_t tr_uchild; /* unary child */
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} tree_190_st;
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typedef struct tree_180 {
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psym_t tr_symbol; /* symbol */
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} tree_180_st;
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typedef struct tree_170 {
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value_t tr_value; /* value of the tree */
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} tree_170_st;
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typedef union tree_100 {
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tree_200_st t200;
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tree_190_st t190;
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tree_180_st t180;
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tree_170_st t170;
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} tree_100_st;
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struct s_tree {
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token_t tr_token; /* tree's token */
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shape_t tr_shape; /* tree shape */
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ptype_t tr_p1type; /* p1's view of the type */
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p2type_t tr_p2type; /* p1's view of the type p2 should have */
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tree_100_st t100;
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};
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#define TR_SHAPE(P) ((P)->tr_shape)
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#define BASIC_SHAPE(S) ((S) & TTBasicShape)
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#define TR_TOKEN(P) ((P)->tr_token)
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#define TR_P1TYPE(P) ((P)->tr_p1type) /* resultant type */
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#define TR_P2TYPE(P) ((P)->tr_p2type) /* resultant type */
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#define TR_ISZERO(P) (TR_SHAPE(P) & TTzero)
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#define TR_LEFT(P) ((P)->t100.t200.tr_left) /* left child */
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#define TR_RIGHT(P) ((P)->t100.t200.tr_right) /* right child */
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#define TR_UCHILD(P) ((P)->t100.t190.tr_uchild) /* unary's child */
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#define TR_SVALUE(P) ((P)->t100.t180.tr_symbol) /* ptr to the symbol */
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#define TR_VALUE(P) ((P)->t100.t170.tr_value) /* value of tree */
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#define TR_RCON(P) (TR_VALUE(P).v_rcon) /* real constant */
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#define TR_DVALUE(P) (TR_RCON(P)->rcon_real) /* double value */
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#define TR_LVALUE(P) (TR_VALUE(P).v_long) /* long value */
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#define TR_STRING(P) (TR_VALUE(P).v_string) /* string value */
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#define TR_CVALUE(P) (TR_STRING(P).str_ptr) /* ptr to string */
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#define TR_CLEN(P) (TR_STRING(P).str_len) /* length of string */
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#define TR_BTYPE(P) (TY_BTYPE(TR_P1TYPE(P)))/* base type */
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#define TR_ESU(P) (TY_ESU(TR_P1TYPE(P))) /* parent enum/struct/union */
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#define TR_INDIR(P) (TY_INDIR(TR_P1TYPE(P)))
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#define TR_INEXT(P) (INDIR_INEXT(TR_INDIR(P)))
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#define TR_ITYPE(P) (INDIR_ITYPE(TR_INDIR(P)))
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#define TR_ISUB(P) (INDIR_ISUB(TR_INDIR(P)))
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#define TR_IFORMALS(P) (INDIR_IFORMALS(TR_INDIR(P)))
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/*
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** for cases
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*/
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struct s_case {
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case_t *c_next; /* next in list */
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long c_expr; /* value of constant expression */
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p1key_t c_label; /* label to which to jump if expr */
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};
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#define NEXT_CASE(p) ((p)->c_next)
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#define CASE_EXPR(p) ((p)->c_expr)
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#define CASE_LABEL(p) ((p)->c_label)
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/*
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** loop inversion structs
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** for( init; test; incr ) { ... }
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** we handle : sym | const relop sym | const; sym op sym | const
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*/
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typedef struct s_loopia loopia_t, *loopiap_t;
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typedef struct s_liarray liarray_t, *liarrayp_t;
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struct s_loopia {
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token_t lia_token;
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union {
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psym_t lia_sym;
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long lia_value;
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liarrayp_t lia_array;
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} lia_union;
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};
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#define LIA_TOKEN(p) ((p)->lia_token)
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#define LIA_SYM(p) ((p)->lia_union.lia_sym)
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#define LIA_VALUE(p) ((p)->lia_union.lia_value)
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#define LIA_ARRAY(p) ((p)->lia_union.lia_array)
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typedef struct s_liarray {
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loopia_t liar_left;
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loopia_t liar_right;
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} liarray;
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#define LIAR_LEFT(p) (&((p)->liar_left))
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#define LIAR_RIGHT(p) (&((p)->liar_right))
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typedef struct s_loopi {
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int li_relop;
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int li_incop;
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loopia_t li_w;
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loopia_t li_x;
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loopia_t li_y;
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loopia_t li_z;
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} loopi_t, *loopip_t;
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#define LOOP_RELOP(p) ((p)->li_relop)
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#define LOOP_INCOP(p) ((p)->li_incop)
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#define LOOP_W(p) (&((p)->li_w))
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#define LOOP_X(p) (&((p)->li_x))
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#define LOOP_Y(p) (&((p)->li_y))
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#define LOOP_Z(p) (&((p)->li_z))
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#define LOOP_W_TOKEN(p) LIA_TOKEN(LOOP_W(p))
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#define LOOP_X_TOKEN(p) LIA_TOKEN(LOOP_X(p))
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#define LOOP_Y_TOKEN(p) LIA_TOKEN(LOOP_Y(p))
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#define LOOP_Z_TOKEN(p) LIA_TOKEN(LOOP_Z(p))
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#define LOOP_W_SYM(p) LIA_SYM(LOOP_W(p))
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#define LOOP_X_SYM(p) LIA_SYM(LOOP_X(p))
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#define LOOP_Y_SYM(p) LIA_SYM(LOOP_Y(p))
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#define LOOP_Z_SYM(p) LIA_SYM(LOOP_Z(p))
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#define LOOP_W_VALUE(p) LIA_VALUE(LOOP_W(p))
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#define LOOP_X_VALUE(p) LIA_VALUE(LOOP_X(p))
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#define LOOP_Y_VALUE(p) LIA_VALUE(LOOP_Y(p))
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#define LOOP_Z_VALUE(p) LIA_VALUE(LOOP_Z(p))
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/*
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** stack structure for saving items which must be stacked at various places
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*/
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struct s_stack {
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stack_t *stk_next;
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union {
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ptree_t sv_tree;
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psym_t sv_sym;
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int sv_int;
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loopip_t sv_loopi;
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} stk_value;
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};
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#define TEST_LAB (Test->stk_value.sv_tree)
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#define START_LAB (Start->stk_value.sv_tree)
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#define CONTINUE_LAB (Continue->stk_value.sv_tree)
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#define BREAK_LAB (Break->stk_value.sv_tree)
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#define CA_LAB (Case->stk_value.sv_tree)
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#define DEFAULT_LAB (Default->stk_value.sv_tree)
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#define LOOPI(p) ((p)->stk_value.sv_loopi)
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