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1.1 ! root 1: /* Copyright (c) 1982 Regents of the University of California */ ! 2: ! 3: static char sccsid[] = "@(#)operators.c 1.4 5/18/83"; ! 4: ! 5: /* ! 6: * Tree node classes. ! 7: */ ! 8: ! 9: #include "defs.h" ! 10: #include "operators.h" ! 11: ! 12: #ifndef public ! 13: typedef struct { ! 14: char numargs; ! 15: char opflags; ! 16: String opstring; ! 17: } Opinfo; ! 18: ! 19: typedef enum { ! 20: O_NOP, ! 21: O_NAME, O_SYM, O_LCON, O_FCON, O_SCON, ! 22: O_RVAL, O_INDEX, O_INDIR, O_DOT, ! 23: O_COMMA, ! 24: ! 25: O_ITOF, O_ADD, O_ADDF, O_SUB, O_SUBF, O_NEG, O_NEGF, ! 26: O_MUL, O_MULF, O_DIVF, O_DIV, O_MOD, ! 27: ! 28: O_AND, O_OR, ! 29: ! 30: O_LT, O_LTF, O_LE, O_LEF, O_GT, O_GTF, O_GE, O_GEF, ! 31: O_EQ, O_EQF, O_NE, O_NEF, ! 32: ! 33: O_ALIAS, /* rename a command */ ! 34: O_ASSIGN, /* assign a value to a program variable */ ! 35: O_CALL, /* call a procedure in the program */ ! 36: O_CATCH, /* catch a signal before program does */ ! 37: O_CHFILE, /* change (or print) the current source file */ ! 38: O_CONT, /* continue execution */ ! 39: O_DEBUG, /* invoke a dbx internal debugging routine */ ! 40: O_DELETE, /* remove a trace/stop */ ! 41: O_DUMP, /* dump out variables */ ! 42: O_EDIT, /* edit a file (or function) */ ! 43: O_FUNC, /* set the current function */ ! 44: O_GRIPE, /* send mail to debugger support person */ ! 45: O_HELP, /* print a synopsis of debugger commands */ ! 46: O_IGNORE, /* let program catch signal */ ! 47: O_LIST, /* list source lines */ ! 48: O_PRINT, /* print the values of a list of expressions */ ! 49: O_PSYM, /* print symbol information */ ! 50: O_RUN, /* start up program */ ! 51: O_SKIP, /* skip the current line */ ! 52: O_SOURCE, /* read commands from a file */ ! 53: O_STATUS, /* display currently active trace/stop's */ ! 54: O_STEP, /* execute a single line */ ! 55: O_STOP, /* stop on an event */ ! 56: O_STOPI, /* stop on an event at an instruction boundary */ ! 57: O_TRACE, /* trace something on an event */ ! 58: O_TRACEI, /* trace at the instruction level */ ! 59: O_WHATIS, /* print the declaration of a variable */ ! 60: O_WHERE, /* print a stack trace */ ! 61: O_WHEREIS, /* print all the symbols with the given name */ ! 62: O_WHICH, /* print out full qualification of a symbol */ ! 63: O_EXAMINE, /* examine program instructions/data */ ! 64: ! 65: O_ADDEVENT, /* add an event */ ! 66: O_ENDX, /* end of program reached */ ! 67: O_IF, /* if first arg is true, do commands in second arg */ ! 68: O_ONCE, /* add a "one-time" event, delete when first reached */ ! 69: O_PRINTCALL, /* print out the current procedure and its arguments */ ! 70: O_PRINTIFCHANGED, /* print the value of the argument if it has changed */ ! 71: O_PRINTRTN, /* print out the routine and value that just returned */ ! 72: O_PRINTSRCPOS, /* print out the current source position */ ! 73: O_PROCRTN, /* CALLPROC completed */ ! 74: O_QLINE, /* filename, line number */ ! 75: O_STOPIFCHANGED, /* stop if the value of the argument has changed */ ! 76: O_STOPX, /* stop execution */ ! 77: O_TRACEON, /* begin tracing source line, variable, or all lines */ ! 78: O_TRACEOFF, /* end tracing source line, variable, or all lines */ ! 79: ! 80: O_TYPERENAME, /* state the type of an expression */ ! 81: ! 82: O_LASTOP ! 83: } Operator; ! 84: ! 85: /* ! 86: * Operator flags and predicates. ! 87: */ ! 88: ! 89: #define null 0 ! 90: #define LEAF 01 ! 91: #define UNARY 02 ! 92: #define BINARY 04 ! 93: #define BOOL 010 ! 94: #define REALOP 020 ! 95: #define INTOP 040 ! 96: ! 97: #define isbitset(a, m) ((a&m) == m) ! 98: #define isleaf(o) isbitset(opinfo[ord(o)].opflags, LEAF) ! 99: #define isunary(o) isbitset(opinfo[ord(o)].opflags, UNARY) ! 100: #define isbinary(o) isbitset(opinfo[ord(o)].opflags, BINARY) ! 101: #define isreal(o) isbitset(opinfo[ord(o)].opflags, REALOP) ! 102: #define isint(o) isbitset(opinfo[ord(o)].opflags, INTOP) ! 103: #define isboolean(o) isbitset(opinfo[ord(o)].opflags, BOOL) ! 104: ! 105: #define degree(o) (opinfo[ord(o)].opflags&(LEAF|UNARY|BINARY)) ! 106: #define nargs(o) (opinfo[ord(o)].numargs) ! 107: ! 108: #endif ! 109: ! 110: /* ! 111: * Operator information structure. ! 112: */ ! 113: ! 114: public Opinfo opinfo[] ={ ! 115: /* O_NOP */ 0, null, 0, ! 116: /* O_NAME */ -1, LEAF, 0, ! 117: /* O_SYM */ -1, LEAF, 0, ! 118: /* O_LCON */ -1, LEAF, 0, ! 119: /* O_FCON */ -1, LEAF, 0, ! 120: /* O_SCON */ -1, LEAF, 0, ! 121: /* O_RVAL */ 1, UNARY, 0, ! 122: /* O_INDEX */ 2, BINARY, 0, ! 123: /* O_INDIR */ 1, UNARY, "^", ! 124: /* O_DOT */ 2, null, ".", ! 125: /* O_COMMA */ 2, BINARY, ",", ! 126: /* O_ITOF */ 1, UNARY|INTOP, 0, ! 127: /* O_ADD */ 2, BINARY|INTOP, "+", ! 128: /* O_ADDF */ 2, BINARY|REALOP, "+", ! 129: /* O_SUB */ 2, BINARY|INTOP, "-", ! 130: /* O_SUBF */ 2, BINARY|REALOP, "-", ! 131: /* O_NEG */ 1, UNARY|INTOP, "-", ! 132: /* O_NEGF */ 1, UNARY|REALOP, "-", ! 133: /* O_MUL */ 2, BINARY|INTOP, "*", ! 134: /* O_MULF */ 2, BINARY|REALOP, "*", ! 135: /* O_DIVF */ 2, BINARY|REALOP, "/", ! 136: /* O_DIV */ 2, BINARY|INTOP, " div ", ! 137: /* O_MOD */ 2, BINARY|INTOP, " mod ", ! 138: /* O_AND */ 2, BINARY|INTOP, " and ", ! 139: /* O_OR */ 2, BINARY|INTOP, " or ", ! 140: /* O_LT */ 2, BINARY|INTOP, " < ", ! 141: /* O_LTF */ 2, BINARY|REALOP, " < ", ! 142: /* O_LE */ 2, BINARY|INTOP, " <= ", ! 143: /* O_LEF */ 2, BINARY|REALOP, " <= ", ! 144: /* O_GT */ 2, BINARY|INTOP, " > ", ! 145: /* O_GTF */ 2, BINARY|REALOP, " > ", ! 146: /* O_GE */ 2, BINARY|INTOP, " >= ", ! 147: /* O_GEF */ 2, BINARY|REALOP, " >= ", ! 148: /* O_EQ */ 2, BINARY|INTOP, " = ", ! 149: /* O_EQF */ 2, BINARY|REALOP, " = ", ! 150: /* O_NE */ 2, BINARY|INTOP, " <> ", ! 151: /* O_NEF */ 2, BINARY|REALOP, " <> ", ! 152: ! 153: /* O_ALIAS */ 2, null, "alias", ! 154: /* O_ASSIGN */ 2, BINARY, " := ", ! 155: /* O_CALL */ 2, null, "call", ! 156: /* O_CATCH */ 0, null, "catch", ! 157: /* O_CHFILE */ 0, null, "file", ! 158: /* O_CONT */ 0, null, "cont", ! 159: /* O_DEBUG */ 0, null, "debug", ! 160: /* O_DELETE */ 0, null, "delete", ! 161: /* O_DUMP */ 0, null, "dump", ! 162: /* O_EDIT */ 0, null, "edit", ! 163: /* O_FUNC */ 1, null, "func", ! 164: /* O_GRIPE */ 0, null, "gripe", ! 165: /* O_HELP */ 0, null, "help", ! 166: /* O_IGNORE */ 0, null, "ignore", ! 167: /* O_LIST */ 2, null, "list", ! 168: /* O_PRINT */ 1, null, "print", ! 169: /* O_PSYM */ 1, null, "psym", ! 170: /* O_RUN */ 0, null, "run", ! 171: /* O_SKIP */ 0, null, "skip", ! 172: /* O_SOURCE */ 0, null, "source", ! 173: /* O_STATUS */ 0, null, "status", ! 174: /* O_STEP */ 0, null, "step", ! 175: /* O_STOP */ 3, null, "stop", ! 176: /* O_STOPI */ 3, null, "stopi", ! 177: /* O_TRACE */ 3, null, "trace", ! 178: /* O_TRACEI */ 3, null, "tracei", ! 179: /* O_WHATIS */ 1, null, "whatis", ! 180: /* O_WHERE */ 0, null, "where", ! 181: /* O_WHEREIS */ 1, null, "whereis", ! 182: /* O_WHICH */ 1, null, "which", ! 183: /* O_EXAMINE */ 0, null, "examine", ! 184: ! 185: /* O_ADDEVENT */ 0, null, "when", ! 186: /* O_ENDX */ 0, null, nil, ! 187: /* O_IF */ 0, null, "if", ! 188: /* O_ONCE */ 0, null, "once", ! 189: /* O_PRINTCALL */ 1, null, "printcall", ! 190: /* O_PRINTIFCHANGED */ 1, null, "printifchanged", ! 191: /* O_PRINTRTN */ 1, null, "printrtn", ! 192: /* O_PRINTSRCPOS */ 1, null, "printsrcpos", ! 193: /* O_PROCRTN */ 1, null, "procrtn", ! 194: /* O_QLINE */ 2, null, nil, ! 195: /* O_STOPIFCHANGED */ 1, null, "stopifchanged", ! 196: /* O_STOPX */ 0, null, "stop", ! 197: /* O_TRACEON */ 1, null, "traceon", ! 198: /* O_TRACEOFF */ 1, null, "traceoff", ! 199: /* O_TYPERENAME */ 2, UNARY, "traceoff", ! 200: };
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