*************************************************************************
Copyright (C) Olivetti 1989
All Rights reserved
Use and copy of this software and preparation of derivative works based
upon this software are permitted to any person, provided this same
copyright notice and the following Olivetti warranty disclaimer are
included in any copy of the software or any modification thereof or
derivative work therefrom made by any person.
This software is made available AS IS and Olivetti disclaims all
warranties with respect to this software, whether expressed or implied
under any law, including all implied warranties of merchantibility and
fitness for any purpose. In no event shall Olivetti be liable for any
damages whatsoever resulting from loss of use, data or profits or
otherwise arising out of or in connection with the use or performance
of this software.
*************************************************************************
Copyright (C) 1993, Digital Equipment Corporation
All rights reserved.
See the file COPYRIGHT for a full description.
MODULE M3LTypeToText EXPORTS M3LTypeToText, M3LTypeSpecToText;
IMPORT Wr, Thread, Text;
IMPORT M3AST_AS, M3AST_SM, M3ASTNext;
IMPORT M3AST_AS_F, M3AST_TM_F, M3AST_SM_F;
IMPORT SeqM3AST_AS_RANGE_EXP, SeqM3AST_AS_Enum_id, SeqM3AST_AS_M3TYPE,
SeqM3AST_AS_Fields, SeqM3AST_AS_Formal_param, SeqM3AST_AS_Qual_used_id,
SeqM3AST_AS_Method, SeqM3AST_AS_Override;
IMPORT M3CId;
IMPORT M3CTypesMisc, M3CStdTypes, M3CBackEnd, M3CExpValue;
IMPORT M3CBackEnd_C; (* for representation of brands *)
VAR
char_g, widechar_g, boolean_g, cardinal_g, longcard_g, text_g: INTEGER;
PROCEDURE Initialize() RAISES {}=
BEGIN
(* these guys can't be initialized as global variables because
M3CStdTypes.Cardinal returns NIL until after M3 has been parsed
and that doesn't occur until much later.
*)
char_g := M3CStdTypes.Char().tmp_type_code;
widechar_g := M3CStdTypes.WideChar().tmp_type_code;
boolean_g := M3CStdTypes.Boolean().tmp_type_code;
cardinal_g := M3CStdTypes.Cardinal().tmp_type_code;
longcard_g := M3CStdTypes.Longcard().tmp_type_code;
text_g := M3CStdTypes.Text().tmp_type_code;
END Initialize;
PROCEDURE SmallNumberDigits(s: Wr.T; n: CARDINAL)
RAISES {Wr.Failure, Thread.Alerted}=
VAR
base: CARDINAL;
baseCh: CHAR := '\x00';
BEGIN
IF n >= FirstBigNumber THEN
SmallNumberDigits(s, n DIV FirstBigNumber);
n := n MOD FirstBigNumber;
END;
CASE n OF <*NOWARN*>
| FirstDigitValue..LastDigitValue =>
base := FirstDigitValue;
baseCh := FirstDigitCh;
| FirstLowerValue..LastLowerValue =>
base := FirstLowerValue;
baseCh := FirstLowerCh;
| FirstUpperValue..LastUpperValue =>
base := FirstUpperValue;
baseCh := FirstUpperCh;
END; (* case *)
Wr.PutChar(s, VAL(ORD(baseCh) + n - base, CHAR));
END SmallNumberDigits;
PROCEDURE SmallNumber(s: Wr.T; n: CARDINAL)
RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
IF n >= FirstBigNumber THEN
Wr.PutChar(s, BigNumberBraCh);
SmallNumberDigits(s, n);
Wr.PutChar(s, BigNumberKetCh);
ELSE
SmallNumberDigits(s, n);
END;
END SmallNumber;
<*INLINE*> PROCEDURE TypeIndexDigits(
s: Wr.T;
n: CARDINAL)
RAISES {Wr.Failure, Thread.Alerted}=
VAR
div := n DIV TypeIndexBase;
mod := n MOD TypeIndexBase;
BEGIN
IF div # 0 THEN TypeIndexDigits(s, div) END;
Wr.PutChar(s, VAL(mod + ORD(TypeIndexFirstDigitCh), CHAR));
END TypeIndexDigits;
PROCEDURE TypeIndex(s: Wr.T; n: CARDINAL) RAISES {Wr.Failure, Thread.Alerted}=
CONST
MaxOneDigit = TypeIndexBase - 1;
MaxTwoDigit = TypeIndexBase * TypeIndexBase - 1;
MaxThreeDigit = TypeIndexBase * TypeIndexBase * TypeIndexBase - 1;
VAR
ch: CHAR;
BEGIN
IF n <= MaxOneDigit THEN
ch := TypeIndexOneCh;
ELSIF n <= MaxTwoDigit THEN
ch := TypeIndexTwoCh;
ELSIF n <= MaxThreeDigit THEN
ch := TypeIndexThreeCh;
ELSE
ch := TypeIndexManyCh;
END;
Wr.PutChar(s, ch);
TypeIndexDigits(s, n);
IF ch = TypeIndexManyCh THEN Wr.PutChar(s, ch) END;
END TypeIndex;
PROCEDURE Txt(s: Wr.T; t: TEXT) RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
SmallNumber(s, Text.Length(t));
Wr.PutText(s, t);
END Txt;
PROCEDURE Id(s: Wr.T; id: M3CId.T) RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
Txt(s, M3CId.ToText(id));
END Id;
PROCEDURE Exp(s: Wr.T; exp: M3AST_AS.EXP) RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
TYPECASE exp.sm_exp_type_spec OF
| M3AST_AS.RefAny_type, M3AST_AS.Root_type,
M3AST_AS.Address_type,
M3AST_AS.Ref_type, M3AST_AS.Object_type,
M3AST_AS.Opaque_type, M3AST_AS.Null_type,
M3AST_AS.Procedure_type =>
(* excepts for texts can only be NIL *)
IF exp.sm_exp_type_spec.tmp_type_code = text_g THEN
Txt(s, M3CBackEnd.ExpValueToText(
exp.sm_exp_value));
ELSE
SmallNumber(s, 0);
END;
| M3AST_AS.Record_type, M3AST_AS.Array_type =>
VAR
constructor := M3CBackEnd.ConstructorOriginal(exp.sm_exp_value);
iter := SeqM3AST_AS_RANGE_EXP.NewIter(constructor.sm_actual_s);
r: M3AST_AS.RANGE_EXP;
BEGIN
WHILE SeqM3AST_AS_RANGE_EXP.Next(iter, r) DO
Exp(s, NARROW(r, M3AST_AS.Range_EXP).as_exp);
END; (* while *)
IF constructor.as_propagate # NIL THEN
Wr.PutChar(s, PropagateCh);
END;
Wr.PutChar(s, EndSeqCh);
END;
ELSE
VAR
val: INTEGER;
BEGIN
IF M3CExpValue.Ordinal(exp, val) = M3CBackEnd.NumStatus.Valid AND
val = 0 THEN
SmallNumber(s, 0);
ELSE
Txt(s, M3CBackEnd.ExpValueToText(exp.sm_exp_value));
END;
END;
END;
END Exp;
PROCEDURE QualId(s: Wr.T; q: M3AST_AS.Qual_used_id) RAISES {Wr.Failure, Thread.Alerted}=
VAR
defId := q.as_id.sm_def;
BEGIN
Id(s, defId.tmp_unit_id.lx_symrep);
Id(s, defId.lx_symrep);
END QualId;
PROCEDURE Enumeration(
s: Wr.T;
e: M3AST_AS.Enumeration_type)
RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
IF e.tmp_type_code = char_g THEN
Wr.PutChar(s, CharCh);
ELSIF e.tmp_type_code = widechar_g THEN
Wr.PutChar(s, WideCharCh);
ELSIF e.tmp_type_code = boolean_g THEN
Wr.PutChar(s, BooleanCh);
ELSE
VAR
i := SeqM3AST_AS_Enum_id.NewIter(e.as_id_s);
id: M3AST_AS.Enum_id;
BEGIN
Wr.PutChar(s, EnumerationCh);
WHILE SeqM3AST_AS_Enum_id.Next(i, id) DO
Id(s, id.lx_symrep)
END;
Wr.PutChar(s, EndSeqCh);
END;
END;
END Enumeration;
PROCEDURE Subrange(
s: Wr.T;
sub: M3AST_AS.Subrange_type)
RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
IF sub.tmp_type_code = cardinal_g THEN
Wr.PutChar(s, CardinalCh);
ELSIF sub.tmp_type_code = longcard_g THEN
Wr.PutChar(s, LongcardCh);
ELSE
Wr.PutChar(s, SubrangeCh);
ComponentType(s, sub.sm_base_type_spec);
Exp(s, sub.as_range.as_exp1);
Exp(s, sub.as_range.as_exp2);
END;
END Subrange;
PROCEDURE Array(s: Wr.T; a: M3AST_AS.Array_type) RAISES {Wr.Failure, Thread.Alerted}=
VAR
iter := SeqM3AST_AS_M3TYPE.NewIter(a.as_indextype_s);
m3Type: M3AST_AS.M3TYPE;
BEGIN
Wr.PutChar(s, ArrayCh);
IF SeqM3AST_AS_M3TYPE.Next(iter, m3Type) THEN
ComponentType(s, m3Type);
ELSE
Wr.PutChar(s, VoidCh);
END;
ComponentType(s, a.sm_norm_type.as_elementtype);
END Array;
PROCEDURE Fields(
s: Wr.T;
fields: SeqM3AST_AS_Fields.T)
RAISES {Wr.Failure, Thread.Alerted}=
VAR
iter := M3ASTNext.NewIterField(fields);
id: M3AST_AS.Field_id;
BEGIN
WHILE M3ASTNext.Field(iter, id) DO
Id(s, id.lx_symrep);
ComponentType(s, id.sm_type_spec);
IF id.vINIT_ID.sm_init_exp # NIL THEN
Wr.PutChar(s, DefaultCh);
Exp(s, id.vINIT_ID.sm_init_exp);
END; (* if *)
END; (* while *)
Wr.PutChar(s, EndSeqCh);
END Fields;
PROCEDURE Record(
s: Wr.T;
r: M3AST_AS.Record_type)
RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
Wr.PutChar(s, RecordCh);
Fields(s, r.as_fields_s);
END Record;
PROCEDURE Packed(
s: Wr.T;
b: M3AST_AS.Packed_type)
RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
Wr.PutChar(s, BitsCh);
Exp(s, b.as_exp);
ComponentType(s, b.as_type);
END Packed;
PROCEDURE Set(s: Wr.T; set: M3AST_AS.Set_type) RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
Wr.PutChar(s, SetCh);
ComponentType(s, set.as_type);
END Set;
PROCEDURE Brand(s: Wr.T; b: M3AST_AS.Brand_NULL) RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
IF b # NIL THEN
IF b.as_exp = NIL THEN
Wr.PutChar(s, CompilerBrandCh);
ELSE
Wr.PutChar(s, UserBrandCh);
END; (* if *)
Txt(s, NARROW(b.sm_brand, M3CBackEnd_C.Text_value).sm_value);
END; (* if *)
END Brand;
PROCEDURE Ref(s: Wr.T; r: M3AST_AS.Ref_type) RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
IF r.as_trace_mode = NIL THEN
Wr.PutChar(s, RefCh);
ELSE
Wr.PutChar(s, UntracedRefCh);
END; (* if *)
Brand(s, r.as_brand);
ComponentType(s, r.as_type);
END Ref;
PROCEDURE Formals(
s: Wr.T;
formals: SeqM3AST_AS_Formal_param.T)
RAISES {Wr.Failure, Thread.Alerted}=
VAR
iter := M3ASTNext.NewIterFormal(formals);
f: M3AST_AS.Formal_param;
id: M3AST_AS.FORMAL_ID;
BEGIN
WHILE M3ASTNext.Formal(iter, f, id) DO
TYPECASE id OF
| M3AST_AS.F_Var_id => Wr.PutChar(s, VarCh);
| M3AST_AS.F_Readonly_id => Wr.PutChar(s, ReadonlyCh);
ELSE
END;
Id(s, id.lx_symrep);
ComponentType(s, id.sm_type_spec);
IF f.as_default # NIL THEN
Wr.PutChar(s, DefaultCh);
Exp(s, f.as_default);
END; (* if *)
END; (* while *)
Wr.PutChar(s, EndSeqCh);
END Formals;
PROCEDURE Procedure(
s: Wr.T;
p: M3AST_AS.Procedure_type)
RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
Wr.PutChar(s, ProcedureCh);
WITH smDefId = p.sm_def_id DO
IF (smDefId # NIL) AND (ISTYPE(smDefId, M3AST_AS.Method_id)) THEN
WITH methodId = NARROW(smDefId, M3AST_AS.Method_id) DO
Wr.PutChar(s, MethodCh);
TypeIndex(s, methodId.vRECOBJ_ID.sm_enc_type_spec.tmp_type_code);
END;
END;
END;
Formals(s, p.as_formal_param_s);
IF p.as_result_type = NIL THEN
Wr.PutChar(s, VoidCh);
ELSE
ComponentType(s, p.as_result_type);
END; (* if *)
VAR
r := p.as_raises;
BEGIN
TYPECASE r OF <*NOWARN*>
| NULL =>
Wr.PutChar(s, EndSeqCh); (* RAISES {} *)
| M3AST_AS.Raisees_any =>
Wr.PutChar(s, RaisesAnyCh);
| M3AST_AS.Raisees_some(r) =>
VAR
i := SeqM3AST_AS_Qual_used_id.NewIter(r.as_raisees_s);
q: M3AST_AS.Qual_used_id;
BEGIN
WHILE SeqM3AST_AS_Qual_used_id.Next(i, q) DO
QualId(s, q);
END; (* while *)
END;
Wr.PutChar(s, EndSeqCh);
END;
END;
END Procedure;
PROCEDURE Object(
s: Wr.T;
o: M3AST_AS.Object_type)
RAISES {Wr.Failure, Thread.Alerted}=
BEGIN
Wr.PutChar(s, ObjectCh);
Brand(s, o.as_brand);
IF o.as_ancestor = NIL THEN
Wr.PutChar(s, RootCh);
ELSE
ComponentType(s, o.as_ancestor);
END; (* if *)
Fields(s, o.as_fields_s);
VAR
i := SeqM3AST_AS_Method.NewIter(o.as_method_s);
m: M3AST_AS.Method;
BEGIN
WHILE SeqM3AST_AS_Method.Next(i, m) DO
Id(s, m.as_id.lx_symrep);
ComponentType(s, m.as_type);
IF m.as_default # NIL THEN
Wr.PutChar(s, DefaultCh);
Exp(s, m.as_id.vINIT_ID.sm_init_exp);
END; (* if *)
END; (* while *)
END;
Wr.PutChar(s, EndSeqCh);
VAR
i := SeqM3AST_AS_Override.NewIter(o.as_override_s);
m: M3AST_AS.Override;
BEGIN
WHILE SeqM3AST_AS_Override.Next(i, m) DO
Id(s, m.as_id.lx_symrep);
ComponentType(s, m.as_id.sm_type_spec);
Wr.PutChar(s, DefaultCh);
Exp(s, m.as_id.vINIT_ID.sm_init_exp);
END; (* while *)
END;
Wr.PutChar(s, EndSeqCh);
END Object;
PROCEDU