forked from illumos/gcc
/
c-pretty-print.c
2259 lines (1951 loc) · 53.9 KB
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c-pretty-print.c
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/* Subroutines common to both C and C++ pretty-printers.
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Contributed by Gabriel Dos Reis <gdr@integrable-solutions.net>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "real.h"
#include "fixed-value.h"
#include "intl.h"
#include "c-pretty-print.h"
#include "c-tree.h"
#include "tree-iterator.h"
#include "diagnostic.h"
/* Translate if being used for diagnostics, but not for dump files or
__PRETTY_FUNCTION. */
#define M_(msgid) (pp_translate_identifiers (pp) ? _(msgid) : (msgid))
/* The pretty-printer code is primarily designed to closely follow
(GNU) C and C++ grammars. That is to be contrasted with spaghetti
codes we used to have in the past. Following a structured
approach (preferably the official grammars) is believed to make it
much easier to add extensions and nifty pretty-printing effects that
takes expression or declaration contexts into account. */
#define pp_c_maybe_whitespace(PP) \
do { \
if (pp_base (PP)->padding == pp_before) \
pp_c_whitespace (PP); \
} while (0)
/* literal */
static void pp_c_char (c_pretty_printer *, int);
/* postfix-expression */
static void pp_c_initializer_list (c_pretty_printer *, tree);
static void pp_c_brace_enclosed_initializer_list (c_pretty_printer *, tree);
static void pp_c_multiplicative_expression (c_pretty_printer *, tree);
static void pp_c_additive_expression (c_pretty_printer *, tree);
static void pp_c_shift_expression (c_pretty_printer *, tree);
static void pp_c_relational_expression (c_pretty_printer *, tree);
static void pp_c_equality_expression (c_pretty_printer *, tree);
static void pp_c_and_expression (c_pretty_printer *, tree);
static void pp_c_exclusive_or_expression (c_pretty_printer *, tree);
static void pp_c_inclusive_or_expression (c_pretty_printer *, tree);
static void pp_c_logical_and_expression (c_pretty_printer *, tree);
static void pp_c_conditional_expression (c_pretty_printer *, tree);
static void pp_c_assignment_expression (c_pretty_printer *, tree);
/* declarations. */
/* Helper functions. */
void
pp_c_whitespace (c_pretty_printer *pp)
{
pp_space (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_left_paren (c_pretty_printer *pp)
{
pp_left_paren (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_right_paren (c_pretty_printer *pp)
{
pp_right_paren (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_left_brace (c_pretty_printer *pp)
{
pp_left_brace (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_right_brace (c_pretty_printer *pp)
{
pp_right_brace (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_left_bracket (c_pretty_printer *pp)
{
pp_left_bracket (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_right_bracket (c_pretty_printer *pp)
{
pp_right_bracket (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_dot (c_pretty_printer *pp)
{
pp_dot (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_ampersand (c_pretty_printer *pp)
{
pp_ampersand (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_star (c_pretty_printer *pp)
{
pp_star (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_arrow (c_pretty_printer *pp)
{
pp_arrow (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_semicolon (c_pretty_printer *pp)
{
pp_semicolon (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_complement (c_pretty_printer *pp)
{
pp_complement (pp);
pp_base (pp)->padding = pp_none;
}
void
pp_c_exclamation (c_pretty_printer *pp)
{
pp_exclamation (pp);
pp_base (pp)->padding = pp_none;
}
/* Print out the external representation of CV-QUALIFIER. */
static void
pp_c_cv_qualifier (c_pretty_printer *pp, const char *cv)
{
const char *p = pp_last_position_in_text (pp);
/* The C programming language does not have references, but it is much
simpler to handle those here rather than going through the same
logic in the C++ pretty-printer. */
if (p != NULL && (*p == '*' || *p == '&'))
pp_c_whitespace (pp);
pp_c_ws_string (pp, cv);
}
/* Pretty-print T using the type-cast notation '( type-name )'. */
static void
pp_c_type_cast (c_pretty_printer *pp, tree t)
{
pp_c_left_paren (pp);
pp_type_id (pp, t);
pp_c_right_paren (pp);
}
/* We're about to pretty-print a pointer type as indicated by T.
Output a whitespace, if needed, preparing for subsequent output. */
void
pp_c_space_for_pointer_operator (c_pretty_printer *pp, tree t)
{
if (POINTER_TYPE_P (t))
{
tree pointee = strip_pointer_operator (TREE_TYPE (t));
if (TREE_CODE (pointee) != ARRAY_TYPE
&& TREE_CODE (pointee) != FUNCTION_TYPE)
pp_c_whitespace (pp);
}
}
/* Declarations. */
/* C++ cv-qualifiers are called type-qualifiers in C. Print out the
cv-qualifiers of T. If T is a declaration then it is the cv-qualifier
of its type. Take care of possible extensions.
type-qualifier-list:
type-qualifier
type-qualifier-list type-qualifier
type-qualifier:
const
restrict -- C99
__restrict__ -- GNU C
address-space-qualifier -- GNU C
volatile
address-space-qualifier:
identifier -- GNU C */
void
pp_c_type_qualifier_list (c_pretty_printer *pp, tree t)
{
int qualifiers;
if (!t || t == error_mark_node)
return;
if (!TYPE_P (t))
t = TREE_TYPE (t);
qualifiers = TYPE_QUALS (t);
if (qualifiers & TYPE_QUAL_CONST)
pp_c_cv_qualifier (pp, "const");
if (qualifiers & TYPE_QUAL_VOLATILE)
pp_c_cv_qualifier (pp, "volatile");
if (qualifiers & TYPE_QUAL_RESTRICT)
pp_c_cv_qualifier (pp, flag_isoc99 ? "restrict" : "__restrict__");
if (!ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (t)))
{
const char *as = c_addr_space_name (TYPE_ADDR_SPACE (t));
pp_c_identifier (pp, as);
}
}
/* pointer:
* type-qualifier-list(opt)
* type-qualifier-list(opt) pointer */
static void
pp_c_pointer (c_pretty_printer *pp, tree t)
{
if (!TYPE_P (t) && TREE_CODE (t) != TYPE_DECL)
t = TREE_TYPE (t);
switch (TREE_CODE (t))
{
case POINTER_TYPE:
/* It is easier to handle C++ reference types here. */
case REFERENCE_TYPE:
if (TREE_CODE (TREE_TYPE (t)) == POINTER_TYPE)
pp_c_pointer (pp, TREE_TYPE (t));
if (TREE_CODE (t) == POINTER_TYPE)
pp_c_star (pp);
else
pp_c_ampersand (pp);
pp_c_type_qualifier_list (pp, t);
break;
/* ??? This node is now in GENERIC and so shouldn't be here. But
we'll fix that later. */
case DECL_EXPR:
pp_declaration (pp, DECL_EXPR_DECL (t));
pp_needs_newline (pp) = true;
break;
default:
pp_unsupported_tree (pp, t);
}
}
/* type-specifier:
void
char
short
int
long
float
double
signed
unsigned
_Bool -- C99
_Complex -- C99
_Imaginary -- C99
struct-or-union-specifier
enum-specifier
typedef-name.
GNU extensions.
simple-type-specifier:
__complex__
__vector__ */
void
pp_c_type_specifier (c_pretty_printer *pp, tree t)
{
const enum tree_code code = TREE_CODE (t);
switch (code)
{
case ERROR_MARK:
pp_c_ws_string (pp, M_("<type-error>"));
break;
case IDENTIFIER_NODE:
pp_c_tree_decl_identifier (pp, t);
break;
case VOID_TYPE:
case BOOLEAN_TYPE:
case INTEGER_TYPE:
case REAL_TYPE:
case FIXED_POINT_TYPE:
if (TYPE_NAME (t))
{
t = TYPE_NAME (t);
pp_c_type_specifier (pp, t);
}
else
{
int prec = TYPE_PRECISION (t);
if (ALL_FIXED_POINT_MODE_P (TYPE_MODE (t)))
t = c_common_type_for_mode (TYPE_MODE (t), TYPE_SATURATING (t));
else
t = c_common_type_for_mode (TYPE_MODE (t), TYPE_UNSIGNED (t));
if (TYPE_NAME (t))
{
pp_c_type_specifier (pp, t);
if (TYPE_PRECISION (t) != prec)
{
pp_string (pp, ":");
pp_decimal_int (pp, prec);
}
}
else
{
switch (code)
{
case INTEGER_TYPE:
pp_string (pp, (TYPE_UNSIGNED (t)
? M_("<unnamed-unsigned:")
: M_("<unnamed-signed:")));
break;
case REAL_TYPE:
pp_string (pp, M_("<unnamed-float:"));
break;
case FIXED_POINT_TYPE:
pp_string (pp, M_("<unnamed-fixed:"));
break;
default:
gcc_unreachable ();
}
pp_decimal_int (pp, prec);
pp_string (pp, ">");
}
}
break;
case TYPE_DECL:
if (DECL_NAME (t))
pp_id_expression (pp, t);
else
pp_c_ws_string (pp, M_("<typedef-error>"));
break;
case UNION_TYPE:
case RECORD_TYPE:
case ENUMERAL_TYPE:
if (code == UNION_TYPE)
pp_c_ws_string (pp, "union");
else if (code == RECORD_TYPE)
pp_c_ws_string (pp, "struct");
else if (code == ENUMERAL_TYPE)
pp_c_ws_string (pp, "enum");
else
pp_c_ws_string (pp, M_("<tag-error>"));
if (TYPE_NAME (t))
pp_id_expression (pp, TYPE_NAME (t));
else
pp_c_ws_string (pp, M_("<anonymous>"));
break;
default:
pp_unsupported_tree (pp, t);
break;
}
}
/* specifier-qualifier-list:
type-specifier specifier-qualifier-list-opt
type-qualifier specifier-qualifier-list-opt
Implementation note: Because of the non-linearities in array or
function declarations, this routine prints not just the
specifier-qualifier-list of such entities or types of such entities,
but also the 'pointer' production part of their declarators. The
remaining part is done by pp_declarator or pp_c_abstract_declarator. */
void
pp_c_specifier_qualifier_list (c_pretty_printer *pp, tree t)
{
const enum tree_code code = TREE_CODE (t);
if (TREE_CODE (t) != POINTER_TYPE)
pp_c_type_qualifier_list (pp, t);
switch (code)
{
case REFERENCE_TYPE:
case POINTER_TYPE:
{
/* Get the types-specifier of this type. */
tree pointee = strip_pointer_operator (TREE_TYPE (t));
pp_c_specifier_qualifier_list (pp, pointee);
if (TREE_CODE (pointee) == ARRAY_TYPE
|| TREE_CODE (pointee) == FUNCTION_TYPE)
{
pp_c_whitespace (pp);
pp_c_left_paren (pp);
}
else if (!c_dialect_cxx ())
pp_c_whitespace (pp);
pp_ptr_operator (pp, t);
}
break;
case FUNCTION_TYPE:
case ARRAY_TYPE:
pp_c_specifier_qualifier_list (pp, TREE_TYPE (t));
break;
case VECTOR_TYPE:
case COMPLEX_TYPE:
if (code == COMPLEX_TYPE)
pp_c_ws_string (pp, flag_isoc99 ? "_Complex" : "__complex__");
else if (code == VECTOR_TYPE)
{
pp_c_ws_string (pp, "__vector");
pp_c_left_paren (pp);
pp_wide_integer (pp, TYPE_VECTOR_SUBPARTS (t));
pp_c_right_paren (pp);
pp_c_whitespace (pp);
}
pp_c_specifier_qualifier_list (pp, TREE_TYPE (t));
break;
default:
pp_simple_type_specifier (pp, t);
break;
}
}
/* parameter-type-list:
parameter-list
parameter-list , ...
parameter-list:
parameter-declaration
parameter-list , parameter-declaration
parameter-declaration:
declaration-specifiers declarator
declaration-specifiers abstract-declarator(opt) */
void
pp_c_parameter_type_list (c_pretty_printer *pp, tree t)
{
bool want_parm_decl = DECL_P (t) && !(pp->flags & pp_c_flag_abstract);
tree parms = want_parm_decl ? DECL_ARGUMENTS (t) : TYPE_ARG_TYPES (t);
pp_c_left_paren (pp);
if (parms == void_list_node)
pp_c_ws_string (pp, "void");
else
{
bool first = true;
for ( ; parms && parms != void_list_node; parms = TREE_CHAIN (parms))
{
if (!first)
pp_separate_with (pp, ',');
first = false;
pp_declaration_specifiers
(pp, want_parm_decl ? parms : TREE_VALUE (parms));
if (want_parm_decl)
pp_declarator (pp, parms);
else
pp_abstract_declarator (pp, TREE_VALUE (parms));
}
}
pp_c_right_paren (pp);
}
/* abstract-declarator:
pointer
pointer(opt) direct-abstract-declarator */
static void
pp_c_abstract_declarator (c_pretty_printer *pp, tree t)
{
if (TREE_CODE (t) == POINTER_TYPE)
{
if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
|| TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
pp_c_right_paren (pp);
t = TREE_TYPE (t);
}
pp_direct_abstract_declarator (pp, t);
}
/* direct-abstract-declarator:
( abstract-declarator )
direct-abstract-declarator(opt) [ assignment-expression(opt) ]
direct-abstract-declarator(opt) [ * ]
direct-abstract-declarator(opt) ( parameter-type-list(opt) ) */
void
pp_c_direct_abstract_declarator (c_pretty_printer *pp, tree t)
{
switch (TREE_CODE (t))
{
case POINTER_TYPE:
pp_abstract_declarator (pp, t);
break;
case FUNCTION_TYPE:
pp_c_parameter_type_list (pp, t);
pp_direct_abstract_declarator (pp, TREE_TYPE (t));
break;
case ARRAY_TYPE:
pp_c_left_bracket (pp);
if (TYPE_DOMAIN (t) && TYPE_MAX_VALUE (TYPE_DOMAIN (t)))
{
tree maxval = TYPE_MAX_VALUE (TYPE_DOMAIN (t));
tree type = TREE_TYPE (maxval);
if (host_integerp (maxval, 0))
pp_wide_integer (pp, tree_low_cst (maxval, 0) + 1);
else
pp_expression (pp, fold_build2 (PLUS_EXPR, type, maxval,
build_int_cst (type, 1)));
}
pp_c_right_bracket (pp);
pp_direct_abstract_declarator (pp, TREE_TYPE (t));
break;
case IDENTIFIER_NODE:
case VOID_TYPE:
case BOOLEAN_TYPE:
case INTEGER_TYPE:
case REAL_TYPE:
case FIXED_POINT_TYPE:
case ENUMERAL_TYPE:
case RECORD_TYPE:
case UNION_TYPE:
case VECTOR_TYPE:
case COMPLEX_TYPE:
case TYPE_DECL:
break;
default:
pp_unsupported_tree (pp, t);
break;
}
}
/* type-name:
specifier-qualifier-list abstract-declarator(opt) */
void
pp_c_type_id (c_pretty_printer *pp, tree t)
{
pp_c_specifier_qualifier_list (pp, t);
pp_abstract_declarator (pp, t);
}
/* storage-class-specifier:
typedef
extern
static
auto
register */
void
pp_c_storage_class_specifier (c_pretty_printer *pp, tree t)
{
if (TREE_CODE (t) == TYPE_DECL)
pp_c_ws_string (pp, "typedef");
else if (DECL_P (t))
{
if (DECL_REGISTER (t))
pp_c_ws_string (pp, "register");
else if (TREE_STATIC (t) && TREE_CODE (t) == VAR_DECL)
pp_c_ws_string (pp, "static");
}
}
/* function-specifier:
inline */
void
pp_c_function_specifier (c_pretty_printer *pp, tree t)
{
if (TREE_CODE (t) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (t))
pp_c_ws_string (pp, "inline");
}
/* declaration-specifiers:
storage-class-specifier declaration-specifiers(opt)
type-specifier declaration-specifiers(opt)
type-qualifier declaration-specifiers(opt)
function-specifier declaration-specifiers(opt) */
void
pp_c_declaration_specifiers (c_pretty_printer *pp, tree t)
{
pp_storage_class_specifier (pp, t);
pp_function_specifier (pp, t);
pp_c_specifier_qualifier_list (pp, DECL_P (t) ? TREE_TYPE (t) : t);
}
/* direct-declarator
identifier
( declarator )
direct-declarator [ type-qualifier-list(opt) assignment-expression(opt) ]
direct-declarator [ static type-qualifier-list(opt) assignment-expression(opt)]
direct-declarator [ type-qualifier-list static assignment-expression ]
direct-declarator [ type-qualifier-list * ]
direct-declarator ( parameter-type-list )
direct-declarator ( identifier-list(opt) ) */
void
pp_c_direct_declarator (c_pretty_printer *pp, tree t)
{
switch (TREE_CODE (t))
{
case VAR_DECL:
case PARM_DECL:
case TYPE_DECL:
case FIELD_DECL:
case LABEL_DECL:
pp_c_space_for_pointer_operator (pp, TREE_TYPE (t));
pp_c_tree_decl_identifier (pp, t);
break;
case ARRAY_TYPE:
case POINTER_TYPE:
pp_abstract_declarator (pp, TREE_TYPE (t));
break;
case FUNCTION_TYPE:
pp_parameter_list (pp, t);
pp_abstract_declarator (pp, TREE_TYPE (t));
break;
case FUNCTION_DECL:
pp_c_space_for_pointer_operator (pp, TREE_TYPE (TREE_TYPE (t)));
pp_c_tree_decl_identifier (pp, t);
if (pp_c_base (pp)->flags & pp_c_flag_abstract)
pp_abstract_declarator (pp, TREE_TYPE (t));
else
{
pp_parameter_list (pp, t);
pp_abstract_declarator (pp, TREE_TYPE (TREE_TYPE (t)));
}
break;
case INTEGER_TYPE:
case REAL_TYPE:
case FIXED_POINT_TYPE:
case ENUMERAL_TYPE:
case UNION_TYPE:
case RECORD_TYPE:
break;
default:
pp_unsupported_tree (pp, t);
break;
}
}
/* declarator:
pointer(opt) direct-declarator */
void
pp_c_declarator (c_pretty_printer *pp, tree t)
{
switch (TREE_CODE (t))
{
case INTEGER_TYPE:
case REAL_TYPE:
case FIXED_POINT_TYPE:
case ENUMERAL_TYPE:
case UNION_TYPE:
case RECORD_TYPE:
break;
case VAR_DECL:
case PARM_DECL:
case FIELD_DECL:
case ARRAY_TYPE:
case FUNCTION_TYPE:
case FUNCTION_DECL:
case TYPE_DECL:
pp_direct_declarator (pp, t);
break;
default:
pp_unsupported_tree (pp, t);
break;
}
}
/* declaration:
declaration-specifiers init-declarator-list(opt) ; */
void
pp_c_declaration (c_pretty_printer *pp, tree t)
{
pp_declaration_specifiers (pp, t);
pp_c_init_declarator (pp, t);
}
/* Pretty-print ATTRIBUTES using GNU C extension syntax. */
void
pp_c_attributes (c_pretty_printer *pp, tree attributes)
{
if (attributes == NULL_TREE)
return;
pp_c_ws_string (pp, "__attribute__");
pp_c_left_paren (pp);
pp_c_left_paren (pp);
for (; attributes != NULL_TREE; attributes = TREE_CHAIN (attributes))
{
pp_tree_identifier (pp, TREE_PURPOSE (attributes));
if (TREE_VALUE (attributes))
pp_c_call_argument_list (pp, TREE_VALUE (attributes));
if (TREE_CHAIN (attributes))
pp_separate_with (pp, ',');
}
pp_c_right_paren (pp);
pp_c_right_paren (pp);
}
/* function-definition:
declaration-specifiers declarator compound-statement */
void
pp_c_function_definition (c_pretty_printer *pp, tree t)
{
pp_declaration_specifiers (pp, t);
pp_declarator (pp, t);
pp_needs_newline (pp) = true;
pp_statement (pp, DECL_SAVED_TREE (t));
pp_newline (pp);
pp_flush (pp);
}
/* Expressions. */
/* Print out a c-char. This is called solely for characters which are
in the *target* execution character set. We ought to convert them
back to the *host* execution character set before printing, but we
have no way to do this at present. A decent compromise is to print
all characters as if they were in the host execution character set,
and not attempt to recover any named escape characters, but render
all unprintables as octal escapes. If the host and target character
sets are the same, this produces relatively readable output. If they
are not the same, strings may appear as gibberish, but that's okay
(in fact, it may well be what the reader wants, e.g. if they are looking
to see if conversion to the target character set happened correctly).
A special case: we need to prefix \, ", and ' with backslashes. It is
correct to do so for the *host*'s \, ", and ', because the rest of the
file appears in the host character set. */
static void
pp_c_char (c_pretty_printer *pp, int c)
{
if (ISPRINT (c))
{
switch (c)
{
case '\\': pp_string (pp, "\\\\"); break;
case '\'': pp_string (pp, "\\\'"); break;
case '\"': pp_string (pp, "\\\""); break;
default: pp_character (pp, c);
}
}
else
pp_scalar (pp, "\\%03o", (unsigned) c);
}
/* Print out a STRING literal. */
void
pp_c_string_literal (c_pretty_printer *pp, tree s)
{
const char *p = TREE_STRING_POINTER (s);
int n = TREE_STRING_LENGTH (s) - 1;
int i;
pp_doublequote (pp);
for (i = 0; i < n; ++i)
pp_c_char (pp, p[i]);
pp_doublequote (pp);
}
/* Pretty-print an INTEGER literal. */
static void
pp_c_integer_constant (c_pretty_printer *pp, tree i)
{
tree type = TREE_TYPE (i);
if (TREE_INT_CST_HIGH (i) == 0)
pp_wide_integer (pp, TREE_INT_CST_LOW (i));
else
{
unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (i);
HOST_WIDE_INT high = TREE_INT_CST_HIGH (i);
if (tree_int_cst_sgn (i) < 0)
{
pp_character (pp, '-');
high = ~high + !low;
low = -low;
}
sprintf (pp_buffer (pp)->digit_buffer, HOST_WIDE_INT_PRINT_DOUBLE_HEX,
(unsigned HOST_WIDE_INT) high, (unsigned HOST_WIDE_INT) low);
pp_string (pp, pp_buffer (pp)->digit_buffer);
}
if (TYPE_UNSIGNED (type))
pp_character (pp, 'u');
if (type == long_integer_type_node || type == long_unsigned_type_node)
pp_character (pp, 'l');
else if (type == long_long_integer_type_node
|| type == long_long_unsigned_type_node)
pp_string (pp, "ll");
}
/* Print out a CHARACTER literal. */
static void
pp_c_character_constant (c_pretty_printer *pp, tree c)
{
tree type = TREE_TYPE (c);
if (type == wchar_type_node)
pp_character (pp, 'L');
pp_quote (pp);
if (host_integerp (c, TYPE_UNSIGNED (type)))
pp_c_char (pp, tree_low_cst (c, TYPE_UNSIGNED (type)));
else
pp_scalar (pp, "\\x%x", (unsigned) TREE_INT_CST_LOW (c));
pp_quote (pp);
}
/* Print out a BOOLEAN literal. */
static void
pp_c_bool_constant (c_pretty_printer *pp, tree b)
{
if (b == boolean_false_node)
{
if (c_dialect_cxx ())
pp_c_ws_string (pp, "false");
else if (flag_isoc99)
pp_c_ws_string (pp, "_False");
else
pp_unsupported_tree (pp, b);
}
else if (b == boolean_true_node)
{
if (c_dialect_cxx ())
pp_c_ws_string (pp, "true");
else if (flag_isoc99)
pp_c_ws_string (pp, "_True");
else
pp_unsupported_tree (pp, b);
}
else if (TREE_CODE (b) == INTEGER_CST)
pp_c_integer_constant (pp, b);
else
pp_unsupported_tree (pp, b);
}
/* Attempt to print out an ENUMERATOR. Return true on success. Else return
false; that means the value was obtained by a cast, in which case
print out the type-id part of the cast-expression -- the casted value
is then printed by pp_c_integer_literal. */
static bool
pp_c_enumeration_constant (c_pretty_printer *pp, tree e)
{
bool value_is_named = true;
tree type = TREE_TYPE (e);
tree value;
/* Find the name of this constant. */
for (value = TYPE_VALUES (type);
value != NULL_TREE && !tree_int_cst_equal (TREE_VALUE (value), e);
value = TREE_CHAIN (value))
;
if (value != NULL_TREE)
pp_id_expression (pp, TREE_PURPOSE (value));
else
{
/* Value must have been cast. */
pp_c_type_cast (pp, type);
value_is_named = false;
}
return value_is_named;
}
/* Print out a REAL value as a decimal-floating-constant. */
static void
pp_c_floating_constant (c_pretty_printer *pp, tree r)
{
real_to_decimal (pp_buffer (pp)->digit_buffer, &TREE_REAL_CST (r),
sizeof (pp_buffer (pp)->digit_buffer), 0, 1);
pp_string (pp, pp_buffer(pp)->digit_buffer);
if (TREE_TYPE (r) == float_type_node)
pp_character (pp, 'f');
else if (TREE_TYPE (r) == long_double_type_node)
pp_character (pp, 'l');
else if (TREE_TYPE (r) == dfloat128_type_node)
pp_string (pp, "dl");
else if (TREE_TYPE (r) == dfloat64_type_node)
pp_string (pp, "dd");
else if (TREE_TYPE (r) == dfloat32_type_node)
pp_string (pp, "df");
}
/* Print out a FIXED value as a decimal-floating-constant. */
static void
pp_c_fixed_constant (c_pretty_printer *pp, tree r)
{
fixed_to_decimal (pp_buffer (pp)->digit_buffer, &TREE_FIXED_CST (r),
sizeof (pp_buffer (pp)->digit_buffer));
pp_string (pp, pp_buffer(pp)->digit_buffer);
}
/* Pretty-print a compound literal expression. GNU extensions include
vector constants. */
static void
pp_c_compound_literal (c_pretty_printer *pp, tree e)
{
tree type = TREE_TYPE (e);
pp_c_type_cast (pp, type);
switch (TREE_CODE (type))
{
case RECORD_TYPE:
case UNION_TYPE:
case ARRAY_TYPE:
case VECTOR_TYPE:
case COMPLEX_TYPE:
pp_c_brace_enclosed_initializer_list (pp, e);
break;
default:
pp_unsupported_tree (pp, e);
break;
}
}
/* Pretty-print a COMPLEX_EXPR expression. */