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Annotation of 43BSD/contrib/xns/compiler/constants.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char RCSid[] = "$Header: constants.c,v 2.0 85/11/21 07:21:34 jqj Exp $";
        !             3: #endif
        !             4: 
        !             5: /* $Log:       constants.c,v $
        !             6:  * Revision 2.0  85/11/21  07:21:34  jqj
        !             7:  * 4.3BSD standard release
        !             8:  * 
        !             9:  * Revision 1.3  85/03/11  16:39:09  jqj
        !            10:  * *** empty log message ***
        !            11:  * 
        !            12:  * Revision 1.3  85/03/11  16:39:09  jqj
        !            13:  * Public alpha-test version, released 11 March 1985
        !            14:  * 
        !            15:  * Revision 1.2  85/02/21  11:05:02  jqj
        !            16:  * alpha test version
        !            17:  * 
        !            18:  * Revision 1.1  85/02/15  13:55:22  jqj
        !            19:  * Initial revision
        !            20:  * 
        !            21:  */
        !            22: 
        !            23: /*
        !            24:  * Generate build symbol tables, etc. for constant declarations.
        !            25:  */
        !            26: 
        !            27: #include "compiler.h"
        !            28: 
        !            29: /*
        !            30:  * Allocate storage for constants
        !            31:  */
        !            32: struct constant *
        !            33: make_constant(constr)
        !            34:        enum constr constr;
        !            35: {
        !            36:        struct constant *c;
        !            37: 
        !            38:        c = New(struct constant);
        !            39:        c->cn_constr = constr;
        !            40:        return(c);
        !            41: }
        !            42: 
        !            43: 
        !            44: /*
        !            45:  * Generate parse tree for simple constants -- Booleans
        !            46:  */
        !            47: struct constant *
        !            48: Boolean_constant(value)
        !            49:        char *value;
        !            50: {
        !            51:        struct constant *c;
        !            52: 
        !            53:        c = make_constant(C_BOOLEAN);
        !            54:        c->cn_value = value;
        !            55:        return(c);
        !            56: }
        !            57: 
        !            58: /*
        !            59:  * Generate parse tree for simple constants -- strings
        !            60:  */
        !            61: struct constant *
        !            62: String_constant(value)
        !            63:        char *value;
        !            64: {
        !            65:        struct constant *c;
        !            66: 
        !            67:        c = make_constant(C_STRING);
        !            68:        c->cn_value = value;
        !            69:        return(c);
        !            70: }
        !            71: 
        !            72: /*
        !            73:  * Generate parse tree for simple constants -- numeric values
        !            74:  * Note that we don't know the actual type of such constants;
        !            75:  * they are type-compatible with any numeric type.
        !            76:  */
        !            77: struct constant *
        !            78: Numeric_constant(value)
        !            79:        char *value;
        !            80: {
        !            81:        struct constant *c;
        !            82: 
        !            83:        c = make_constant(C_NUMERIC);
        !            84:        c->cn_value = value;
        !            85:        return(c);
        !            86: }
        !            87: /*
        !            88:  * Generate parse tree for simple constants -- enumerations
        !            89:  * Note that we don't know the actual type of such constants;
        !            90:  * they are type-compatible with any numeric type.
        !            91:  */
        !            92: struct constant *
        !            93: enumeration_constant(value)
        !            94:        char *value;
        !            95: {
        !            96:        struct constant *c;
        !            97: 
        !            98:        c = make_constant(C_ENUMERATION);
        !            99:        c->cn_value = value;
        !           100:        return(c);
        !           101: }
        !           102: 
        !           103: /*
        !           104:  * Generate parse tree for complex constants -- arrays and sequences
        !           105:  * Note that we treat them all as arrays, and allow sequences to
        !           106:  * be type-compatible with arrays at declaration time.
        !           107:  */
        !           108: struct constant *
        !           109: array_constant(values)
        !           110:        list values;
        !           111: {
        !           112:        struct constant *c;
        !           113: 
        !           114:        c = make_constant(C_ARRAY);
        !           115:        c->cn_list = values;
        !           116:        return(c);
        !           117: }
        !           118: 
        !           119: /*
        !           120:  * Generate parse tree for complex constants -- records
        !           121:  * As a special case, NIL record constants are also type-compatible
        !           122:  * with some arrays and all sequences.
        !           123:  */
        !           124: struct constant *
        !           125: record_constant(values)
        !           126:        list values;
        !           127: {
        !           128:        struct constant *c;
        !           129: 
        !           130:        c = make_constant(C_RECORD);
        !           131:        c->cn_list = values;
        !           132:        return(c);
        !           133: }
        !           134: 
        !           135: /*
        !           136:  * Generate parse tree for complex constants -- choices
        !           137:  */
        !           138: struct constant *
        !           139: choice_constant(values)
        !           140:        list values;
        !           141: {
        !           142:        struct constant *c;
        !           143: 
        !           144:        c = make_constant(C_CHOICE);
        !           145:        c->cn_list = values;
        !           146:        return(c);
        !           147: }

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