2005-02-04 15:39:11 +00:00
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/*
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2006-10-23 14:44:43 +00:00
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* $Id: obj.h,v 1.6 2006-10-23 14:42:38 bacon Exp $
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2005-02-04 15:39:11 +00:00
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*/
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2006-10-22 13:10:46 +00:00
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#ifndef _SSE_LSP_OBJ_H_
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#define _SSE_LSP_OBJ_H_
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#include <sse/lsp/types.h>
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/* object types */
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enum
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{
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SSE_LSP_OBJ_NIL = 0,
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SSE_LSP_OBJ_TRUE,
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SSE_LSP_OBJ_INT,
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SSE_LSP_OBJ_REAL,
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SSE_LSP_OBJ_SYMBOL,
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SSE_LSP_OBJ_STRING,
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SSE_LSP_OBJ_CONS,
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SSE_LSP_OBJ_FUNC,
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SSE_LSP_OBJ_MACRO,
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SSE_LSP_OBJ_PRIM,
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SSE_LSP_TYPE_COUNT // the number of lsp object types
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};
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typedef struct sse_lsp_objhdr_t sse_lsp_objhdr_t;
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typedef struct sse_lsp_obj_t sse_lsp_obj_t;
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typedef struct sse_lsp_obj_nil_t sse_lsp_obj_nil_t;
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typedef struct sse_lsp_obj_true_t sse_lsp_obj_true_t;
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typedef struct sse_lsp_obj_int_t sse_lsp_obj_int_t;
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typedef struct sse_lsp_obj_real_t sse_lsp_obj_real_t;
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typedef struct sse_lsp_obj_symbol_t sse_lsp_obj_symbol_t;
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typedef struct sse_lsp_obj_string_t sse_lsp_obj_string_t;
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typedef struct sse_lsp_obj_cons_t sse_lsp_obj_cons_t;
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typedef struct sse_lsp_obj_func_t sse_lsp_obj_func_t;
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typedef struct sse_lsp_obj_macro_t sse_lsp_obj_macro_t;
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typedef struct sse_lsp_obj_prim_t sse_lsp_obj_prim_t;
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struct sse_lsp_objhdr_t
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{
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sse_uint32_t type: 24;
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sse_uint32_t mark: 4;
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sse_uint32_t lock: 4;
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sse_size_t size;
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sse_lsp_obj_t* link;
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};
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struct sse_lsp_obj_t
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{
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sse_lsp_objhdr_t hdr;
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};
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struct sse_lsp_obj_nil_t
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{
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sse_lsp_objhdr_t hdr;
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};
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struct sse_lsp_obj_true_t
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{
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sse_lsp_objhdr_t hdr;
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};
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struct sse_lsp_obj_int_t
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{
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sse_lsp_objhdr_t hdr;
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sse_lsp_int_t value;
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};
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struct sse_lsp_obj_real_t
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{
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sse_lsp_objhdr_t hdr;
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sse_lsp_real_t value;
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};
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struct sse_lsp_obj_symbol_t
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{
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sse_lsp_objhdr_t hdr;
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#if defined(__BORLANDC__) || defined(_MSC_VER)
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#else
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sse_char_t buffer[0];
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#endif
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};
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struct sse_lsp_obj_string_t
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{
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sse_lsp_objhdr_t hdr;
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#if defined(__BORLANDC__) || defined(_MSC_VER)
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#else
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sse_char_t buffer[0];
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#endif
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};
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struct sse_lsp_obj_cons_t
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{
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sse_lsp_objhdr_t hdr;
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struct sse_lsp_obj_t* car;
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struct sse_lsp_obj_t* cdr;
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};
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struct sse_lsp_obj_func_t
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{
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sse_lsp_objhdr_t hdr;
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struct sse_lsp_obj_t* formal;
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struct sse_lsp_obj_t* body;
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};
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struct sse_lsp_obj_macro_t
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{
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sse_lsp_objhdr_t hdr;
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struct sse_lsp_obj_t* formal;
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struct sse_lsp_obj_t* body;
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};
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struct sse_lsp_obj_prim_t
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{
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sse_lsp_objhdr_t hdr;
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void* impl; /* sse_lsp_prim_t */
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};
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/* header access */
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#define SSE_LSP_TYPE(x) (((sse_lsp_obj_t*)x)->hdr.type)
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#define SSE_LSP_SIZE(x) (((sse_lsp_obj_t*)x)->hdr.size)
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#define SSE_LSP_MARK(x) (((sse_lsp_obj_t*)x)->hdr.mark)
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#define SSE_LSP_LOCK(x) (((sse_lsp_obj_t*)x)->hdr.lock)
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#define SSE_LSP_LINK(x) (((sse_lsp_obj_t*)x)->hdr.link)
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/* value access */
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#define SSE_LSP_IVALUE(x) (((sse_lsp_obj_int_t*)x)->value)
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#define SSE_LSP_RVALUE(x) (((sse_lsp_obj_real_t*)x)->value)
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#ifdef __BORLANDC__
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#define SSE_LSP_SYMVALUE(x) ((sse_char_t*)(((sse_lsp_obj_symbol_t*)x) + 1))
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#else
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#define SSE_LSP_SYMVALUE(x) (((sse_lsp_obj_symbol_t*)x)->buffer)
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#endif
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#define SSE_LSP_SYMLEN(x) ((((sse_lsp_obj_symbol_t*)x)->hdr.size - sizeof(sse_lsp_obj_t)) / sizeof(sse_char_t) - 1)
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#ifdef __BORLANDC__
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#define SSE_LSP_STRVALUE(x) ((sse_char_t*)(((sse_lsp_obj_string_t*)x) + 1))
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#else
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#define SSE_LSP_STRVALUE(x) (((sse_lsp_obj_string_t*)x)->buffer)
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#endif
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#define SSE_LSP_STRLEN(x) ((((sse_lsp_obj_string_t*)x)->hdr.size - sizeof(sse_lsp_obj_t)) / sizeof(sse_char_t) - 1)
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#define SSE_LSP_CAR(x) (((sse_lsp_obj_cons_t*)x)->car)
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#define SSE_LSP_CDR(x) (((sse_lsp_obj_cons_t*)x)->cdr)
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#define SSE_LSP_FFORMAL(x) (((sse_lsp_obj_func_t*)x)->formal)
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#define SSE_LSP_FBODY(x) (((sse_lsp_obj_func_t*)x)->body)
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#define SSE_LSP_MFORMAL(x) (((sse_lsp_obj_macro_t*)x)->formal)
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#define SSE_LSP_MBODY(x) (((sse_lsp_obj_macro_t*)x)->body)
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#define SSE_LSP_PRIM(x) ((sse_lsp_prim_t)(((sse_lsp_obj_prim_t*)x)->impl))
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#endif
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