diff options
Diffstat (limited to 'gdb/ch-lang.c')
| -rw-r--r-- | gdb/ch-lang.c | 110 |
1 files changed, 109 insertions, 1 deletions
diff --git a/gdb/ch-lang.c b/gdb/ch-lang.c index 2b65fb4..e90e4a7 100644 --- a/gdb/ch-lang.c +++ b/gdb/ch-lang.c @@ -253,6 +253,10 @@ static const struct op_print chill_op_print_tab[] = { {"NOT", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, {"MOD", BINOP_MOD, PREC_MUL, 0}, {"REM", BINOP_REM, PREC_MUL, 0}, + {"SIZE",UNOP_SIZEOF, PREC_BUILTIN_FUNCTION, 0}, + {"LOWER",UNOP_LOWER, PREC_BUILTIN_FUNCTION, 0}, + {"UPPER",UNOP_UPPER, PREC_BUILTIN_FUNCTION, 0}, + {"LOWER",UNOP_UPPER, PREC_BUILTIN_FUNCTION, 0}, {":=", BINOP_ASSIGN, PREC_ASSIGN, 1}, {"=", BINOP_EQUAL, PREC_EQUAL, 0}, {"/=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, @@ -289,6 +293,87 @@ struct type ** const (chill_builtin_types[]) = 0 }; +/* Calculate LOWER or UPPER of TYPE. + Returns the result as an integer. + *RESULT_TYPE is the appropriate type for the result. */ + +LONGEST +type_lower_upper (op, type, result_type) + enum exp_opcode op; /* Either UNOP_LOWER or UNOP_UPPER */ + struct type *type; + struct type **result_type; +{ + LONGEST tmp; + *result_type = builtin_type_int; + retry: + switch (TYPE_CODE (type)) + { + case TYPE_CODE_STRUCT: + if (chill_varying_type (type)) + return type_lower_upper (op, TYPE_FIELD_TYPE (type, 1), result_type); + break; + case TYPE_CODE_ARRAY: + case TYPE_CODE_BITSTRING: + case TYPE_CODE_STRING: + type = TYPE_FIELD_TYPE (type, 0); /* Get index type */ + + /* ... fall through ... */ + case TYPE_CODE_RANGE: + if (TYPE_DUMMY_RANGE (type) > 0) + return type_lower_upper (op, TYPE_TARGET_TYPE (type), result_type); + *result_type = TYPE_TARGET_TYPE (type); + return op == UNOP_LOWER ? TYPE_LOW_BOUND (type) : TYPE_HIGH_BOUND (type); + + case TYPE_CODE_ENUM: + *result_type = type; + if (TYPE_NFIELDS (type) > 0) + return TYPE_FIELD_BITPOS (type, + op == UNOP_LOWER ? 0 + : TYPE_NFIELDS (type) - 1); + + case TYPE_CODE_BOOL: + *result_type = type; + return op == UNOP_LOWER ? 0 : 1; + case TYPE_CODE_INT: + case TYPE_CODE_CHAR: + *result_type = type; + tmp = (LONGEST) 1 << (TARGET_CHAR_BIT * TYPE_LENGTH (type)); + if (TYPE_UNSIGNED (type)) + return op == UNOP_LOWER ? 0 : tmp - (LONGEST) 1; + tmp = tmp >> 1; + return op == UNOP_LOWER ? -tmp : (tmp - 1); + } + error ("unknown mode for LOWER/UPPER builtin"); +} + +static value_ptr +value_chill_length (val) + value_ptr val; +{ + LONGEST tmp; + struct type *type = VALUE_TYPE (val); + struct type *ttype; + switch (TYPE_CODE (type)) + { + case TYPE_CODE_ARRAY: + case TYPE_CODE_BITSTRING: + case TYPE_CODE_STRING: + tmp = type_lower_upper (UNOP_UPPER, type, &ttype) + - type_lower_upper (UNOP_LOWER, type, &ttype) + 1; + break; + case TYPE_CODE_STRUCT: + if (chill_varying_type (type)) + { + tmp = unpack_long (TYPE_FIELD_TYPE (type, 0), VALUE_CONTENTS (val)); + break; + } + /* ... else fall through ... */ + default: + error ("bad argument to LENGTH builtin"); + } + return value_from_longest (builtin_type_int, tmp); +} + static value_ptr evaluate_subexp_chill (expect_type, exp, pos, noside) struct type *expect_type; @@ -297,10 +382,12 @@ evaluate_subexp_chill (expect_type, exp, pos, noside) enum noside noside; { int pc = *pos; + struct type *type; int tem, nargs; value_ptr arg1; value_ptr *argvec; - switch (exp->elts[*pos].opcode) + enum exp_opcode op = exp->elts[*pos].opcode; + switch (op) { case MULTI_SUBSCRIPT: if (noside == EVAL_SKIP || noside == EVAL_AVOID_SIDE_EFFECTS) @@ -334,11 +421,32 @@ evaluate_subexp_chill (expect_type, exp, pos, noside) arg1 = value_subscript (arg1, index); } return (arg1); + + case UNOP_LOWER: + case UNOP_UPPER: + (*pos)++; + if (noside == EVAL_SKIP) + { + (*exp->language_defn->evaluate_exp) (NULL_TYPE, exp, pos, EVAL_SKIP); + goto nosideret; + } + arg1 = (*exp->language_defn->evaluate_exp) (NULL_TYPE, exp, pos, + EVAL_AVOID_SIDE_EFFECTS); + tem = type_lower_upper (op, VALUE_TYPE (arg1), &type); + return value_from_longest (type, tem); + + case UNOP_LENGTH: + (*pos)++; + arg1 = (*exp->language_defn->evaluate_exp) (NULL_TYPE, exp, pos, noside); + return value_chill_length (arg1); + default: break; } return evaluate_subexp_standard (expect_type, exp, pos, noside); + nosideret: + return value_from_longest (builtin_type_long, (LONGEST) 1); } const struct language_defn chill_language_defn = { |