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freebsd-dev/contrib/gcc/c-pretty-print.c

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Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* Subroutines common to both C and C++ pretty-printers.
Copyright (C) 2002 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 2, 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 COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#include "config.h"
#include "system.h"
#include "real.h"
#include "c-pretty-print.h"
#include "c-tree.h"
/* literal */
static void pp_c_char PARAMS ((c_pretty_printer, int));
static void pp_c_character_literal PARAMS ((c_pretty_printer, tree));
static void pp_c_bool_literal PARAMS ((c_pretty_printer, tree));
static bool pp_c_enumerator PARAMS ((c_pretty_printer, tree));
static void pp_c_integer_literal PARAMS ((c_pretty_printer, tree));
static void pp_c_real_literal PARAMS ((c_pretty_printer, tree));
static void pp_c_string_literal PARAMS ((c_pretty_printer, tree));
static void pp_c_primary_expression PARAMS ((c_pretty_printer, tree));
/* postfix-expression */
static void pp_c_initializer_list PARAMS ((c_pretty_printer, tree));
static void pp_c_unary_expression PARAMS ((c_pretty_printer, tree));
static void pp_c_multiplicative_expression PARAMS ((c_pretty_printer, tree));
static void pp_c_additive_expression PARAMS ((c_pretty_printer, tree));
static void pp_c_shift_expression PARAMS ((c_pretty_printer, tree));
static void pp_c_relational_expression PARAMS ((c_pretty_printer, tree));
static void pp_c_equality_expression PARAMS ((c_pretty_printer, tree));
static void pp_c_and_expression PARAMS ((c_pretty_printer, tree));
static void pp_c_exclusive_or_expression PARAMS ((c_pretty_printer,
tree));
static void pp_c_inclusive_or_expression PARAMS ((c_pretty_printer,
tree));
static void pp_c_logical_and_expression PARAMS ((c_pretty_printer, tree));
static void pp_c_conditional_expression PARAMS ((c_pretty_printer, tree));
static void pp_c_assignment_expression PARAMS ((c_pretty_printer, tree));
/* declarations. */
static void pp_c_declaration_specifiers PARAMS ((c_pretty_printer, tree));
static void pp_c_init_declarator PARAMS ((c_pretty_printer, tree));
static void pp_c_declarator PARAMS ((c_pretty_printer, tree));
static void pp_c_direct_declarator PARAMS ((c_pretty_printer, tree));
static void pp_c_abstract_declarator PARAMS ((c_pretty_printer, tree));
static void pp_c_specifier_qualifier_list PARAMS ((c_pretty_printer, tree));
static void pp_c_simple_type_specifier PARAMS ((c_pretty_printer, tree));
static void pp_c_parameter_declaration PARAMS ((c_pretty_printer, tree));
static void pp_c_type_id PARAMS ((c_pretty_printer, tree));
static void pp_c_storage_class_specifier PARAMS ((c_pretty_printer, tree));
static void pp_c_function_specifier PARAMS ((c_pretty_printer, tree));
/* Declarations. */
/* Print out CV-qualifiers. Take care of possible extensions. */
void
pp_c_cv_qualifier (ppi, cv)
c_pretty_printer ppi;
int cv;
{
if (cv & TYPE_QUAL_CONST)
pp_c_identifier (ppi, "const");
if (cv & TYPE_QUAL_VOLATILE)
pp_c_identifier (ppi, "volatile");
if (cv & TYPE_QUAL_RESTRICT)
pp_c_identifier (ppi, flag_isoc99 ? "restrict" : "__restrict__");
}
static void
pp_c_simple_type_specifier (ppi, t)
c_pretty_printer ppi;
tree t;
{
const enum tree_code code = TREE_CODE (t);
switch (code)
{
case ERROR_MARK:
pp_c_identifier (ppi, "<type-error>");
break;
#if 0
case UNKNOWN_TYPE:
pp_c_identifier (ppi, "<unkown-type>");
break;
#endif
case IDENTIFIER_NODE:
pp_c_tree_identifier (ppi, t);
break;
case VOID_TYPE:
case BOOLEAN_TYPE:
case CHAR_TYPE:
case INTEGER_TYPE:
case REAL_TYPE:
pp_c_tree_identifier (ppi, DECL_NAME (t));
break;
case COMPLEX_TYPE:
case VECTOR_TYPE:
pp_c_simple_type_specifier (ppi, TYPE_MAIN_VARIANT (TREE_TYPE (t)));
if (code == COMPLEX_TYPE)
pp_c_identifier (ppi, flag_isoc99 ? "_Complex" : "__complex__");
else if (code == VECTOR_TYPE)
pp_c_identifier (ppi, "__vector__");
break;
case TYPE_DECL:
if (DECL_NAME (t))
pp_c_tree_identifier (ppi, DECL_NAME (t));
else
pp_c_identifier (ppi, "<typedef-error>");
break;
case UNION_TYPE:
case RECORD_TYPE:
case ENUMERAL_TYPE:
if (code == UNION_TYPE)
pp_c_identifier (ppi, "union");
else if (code == RECORD_TYPE)
pp_c_identifier (ppi, "struct");
else if (code == ENUMERAL_TYPE)
pp_c_identifier (ppi, "enum");
else
pp_c_identifier (ppi, "<tag-error>");
if (TYPE_NAME (t))
pp_c_tree_identifier (ppi, TYPE_NAME (t));
else
pp_c_identifier (ppi, "<anonymous>");
break;
default:
pp_unsupported_tree (ppi, t);
}
}
static inline void
pp_c_specifier_qualifier_list (ppi, t)
c_pretty_printer ppi;
tree t;
{
pp_c_simple_type_specifier (ppi, TYPE_MAIN_VARIANT (TREE_TYPE (t)));
pp_c_cv_qualifier (ppi, TYPE_QUALS (t));
}
static void
pp_c_abstract_declarator (ppi, t)
c_pretty_printer ppi;
tree t;
{
pp_unsupported_tree (ppi, t);
}
static inline void
pp_c_type_id (ppi, t)
c_pretty_printer ppi;
tree t;
{
pp_c_specifier_qualifier_list (ppi, t);
pp_c_abstract_declarator (ppi, t);
}
static inline void
pp_c_storage_class_specifier (pp, t)
c_pretty_printer pp;
tree t;
{
if (TREE_CODE (t) == TYPE_DECL)
pp_c_identifier (pp, "typedef");
else if (DECL_REGISTER (t))
pp_c_identifier (pp, "register");
}
static inline void
pp_c_function_specifier (pp, t)
c_pretty_printer pp;
tree t;
{
if (TREE_CODE (t) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (t))
pp_c_identifier (pp, "inline");
}
static inline void
pp_c_declaration_specifiers (pp, t)
c_pretty_printer pp;
tree t;
{
pp_c_storage_class_specifier (pp, t);
pp_c_function_specifier (pp, t);
pp_type_specifier (pp, TYPE_MAIN_VARIANT (TREE_TYPE (t)));
pp_c_cv_qualifier (pp, TYPE_QUALS (TREE_TYPE (t)));
}
static inline void
pp_c_direct_declarator (pp, t)
c_pretty_printer pp;
tree t;
{
pp_unsupported_tree (pp, t);
}
static inline void
pp_c_declarator (pp, t)
c_pretty_printer pp;
tree t;
{
pp_unsupported_tree (pp, t);
}
static inline void
pp_c_init_declarator (pp, t)
c_pretty_printer pp;
tree t;
{
pp_declarator (pp, t);
if (DECL_INITIAL (t))
{
pp_whitespace (pp);
pp_equal (pp);
pp_whitespace (pp);
pp_c_initializer (pp, DECL_INITIAL (t));
}
}
void
pp_c_declaration (pp, t)
c_pretty_printer pp;
tree t;
{
pp_declaration_specifiers (pp, t);
pp_c_init_declarator (pp, t);
}
static void
pp_c_parameter_declaration (pp, t)
c_pretty_printer pp;
tree t;
{
pp_unsupported_tree (pp, t);
}
/* Pretty-print ATTRIBUTES using GNU C extension syntax. */
void
pp_c_attributes (pp, attributes)
c_pretty_printer pp;
tree attributes;
{
if (attributes == NULL_TREE)
return;
pp_c_identifier (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_left_paren (pp);
pp_c_expression_list (pp, TREE_VALUE (attributes));
pp_c_right_paren (pp);
}
if (TREE_CHAIN (attributes))
pp_separate_with (pp, ',');
}
pp_c_right_paren (pp);
pp_c_right_paren (pp);
}
/* Expressions. */
/* Print out a c-char. */
static void
pp_c_char (ppi, c)
c_pretty_printer ppi;
int c;
{
switch (c)
{
case TARGET_NEWLINE:
pp_identifier (ppi, "\\n");
break;
case TARGET_TAB:
pp_identifier (ppi, "\\t");
break;
case TARGET_VT:
pp_identifier (ppi, "\\v");
break;
case TARGET_BS:
pp_identifier (ppi, "\\b");
break;
case TARGET_CR:
pp_identifier (ppi, "\\r");
break;
case TARGET_FF:
pp_identifier (ppi, "\\f");
break;
case TARGET_BELL:
pp_identifier (ppi, "\\a");
break;
case '\\':
pp_identifier (ppi, "\\\\");
break;
case '\'':
pp_identifier (ppi, "\\'");
break;
case '\"':
pp_identifier (ppi, "\\\"");
break;
default:
if (ISPRINT (c))
pp_character (ppi, c);
else
pp_format_scalar (ppi, "\\%03o", (unsigned) c);
break;
}
}
/* Print out a STRING literal. */
static inline void
pp_c_string_literal (ppi, s)
c_pretty_printer ppi;
tree s;
{
const char *p = TREE_STRING_POINTER (s);
int n = TREE_STRING_LENGTH (s) - 1;
int i;
pp_doublequote (ppi);
for (i = 0; i < n; ++i)
pp_c_char (ppi, p[i]);
pp_doublequote (ppi);
}
/* Print out a CHARACTER literal. */
static inline void
pp_c_character_literal (ppi, c)
c_pretty_printer ppi;
tree c;
{
pp_quote (ppi);
pp_c_char (ppi, tree_low_cst (c, 0));
pp_quote (ppi);
}
/* Print out a BOOLEAN literal. */
static inline void
pp_c_bool_literal (ppi, b)
c_pretty_printer ppi;
tree b;
{
if (b == boolean_false_node || integer_zerop (b))
{
if (c_language == clk_cplusplus)
pp_c_identifier (ppi, "false");
else if (c_language == clk_c && flag_isoc99)
pp_c_identifier (ppi, "_False");
else
pp_unsupported_tree (ppi, b);
}
else if (b == boolean_true_node)
{
if (c_language == clk_cplusplus)
pp_c_identifier (ppi, "true");
else if (c_language == clk_c && flag_isoc99)
pp_c_identifier (ppi, "_True");
else
pp_unsupported_tree (ppi, b);
}
else
pp_unsupported_tree (ppi, 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_enumerator (ppi, e)
c_pretty_printer ppi;
tree e;
{
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_c_tree_identifier (ppi, TREE_PURPOSE (value));
else
{
/* Value must have been cast. */
pp_c_left_paren (ppi);
pp_type_id (ppi, type);
pp_c_right_paren (ppi);
return false;
}
return true;
}
/* Print out an INTEGER constant value. */
static void
pp_c_integer_literal (ppi, i)
c_pretty_printer ppi;
tree i;
{
tree type = TREE_TYPE (i);
if (type == boolean_type_node)
pp_c_bool_literal (ppi, i);
else if (type == char_type_node)
pp_c_character_literal (ppi, i);
else if (TREE_CODE (type) == ENUMERAL_TYPE
&& pp_c_enumerator (ppi, i))
;
else
{
if (host_integerp (i, 0))
pp_wide_integer (ppi, TREE_INT_CST_LOW (i));
else
{
if (tree_int_cst_sgn (i) < 0)
{
static char format[10]; /* "%x%09999x\0" */
if (!format[0])
sprintf (format, "%%x%%0%dx", HOST_BITS_PER_INT / 4);
pp_c_char (ppi, '-');
i = build_int_2 (-TREE_INT_CST_LOW (i),
~TREE_INT_CST_HIGH (i) + !TREE_INT_CST_LOW (i));
sprintf (pp_buffer (ppi)->digit_buffer, format,
TREE_INT_CST_HIGH (i), TREE_INT_CST_LOW (i));
pp_identifier (ppi, pp_buffer (ppi)->digit_buffer);
}
}
}
}
/* Print out a REAL value. */
static inline void
pp_c_real_literal (ppi, r)
c_pretty_printer ppi;
tree r;
{
real_to_decimal (pp_buffer (ppi)->digit_buffer, &TREE_REAL_CST (r),
sizeof (pp_buffer (ppi)->digit_buffer), 0, 1);
pp_identifier (ppi, pp_buffer(ppi)->digit_buffer);
}
void
pp_c_literal (ppi, e)
c_pretty_printer ppi;
tree e;
{
switch (TREE_CODE (e))
{
case INTEGER_CST:
pp_c_integer_literal (ppi, e);
break;
case REAL_CST:
pp_c_real_literal (ppi, e);
break;
case STRING_CST:
pp_c_string_literal (ppi, e);
break;
default:
pp_unsupported_tree (ppi, e);
break;
}
}
/* Pretty-print a C primary-expression. */
static void
pp_c_primary_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
switch (TREE_CODE (e))
{
case VAR_DECL:
case PARM_DECL:
case FIELD_DECL:
case CONST_DECL:
case FUNCTION_DECL:
case LABEL_DECL:
e = DECL_NAME (e);
/* Fall through. */
case IDENTIFIER_NODE:
pp_c_tree_identifier (ppi, e);
break;
case ERROR_MARK:
pp_c_identifier (ppi, "<erroneous-expression>");
break;
case RESULT_DECL:
pp_c_identifier (ppi, "<return-value>");
break;
case INTEGER_CST:
case REAL_CST:
case STRING_CST:
pp_c_literal (ppi, e);
break;
case TARGET_EXPR:
pp_c_left_paren (ppi);
pp_c_identifier (ppi, "__builtin_memcpy");
pp_c_left_paren (ppi);
pp_ampersand (ppi);
pp_c_primary_expression (ppi, TREE_OPERAND (e, 0));
pp_separate_with (ppi, ',');
pp_ampersand (ppi);
pp_initializer (ppi, TREE_OPERAND (e, 1));
if (TREE_OPERAND (e, 2))
{
pp_separate_with (ppi, ',');
pp_c_expression (ppi, TREE_OPERAND (e, 2));
}
pp_c_right_paren (ppi);
case STMT_EXPR:
pp_c_left_paren (ppi);
pp_statement (ppi, STMT_EXPR_STMT (e));
pp_c_right_paren (ppi);
break;
default:
/* Make sure this call won't cause any infinite loop. */
pp_c_left_paren (ppi);
pp_c_expression (ppi, e);
pp_c_right_paren (ppi);
break;
}
}
/* Print out a C initializer -- also support C compound-literals. */
void
pp_c_initializer (ppi, e)
c_pretty_printer ppi;
tree e;
{
if (TREE_CODE (e) == CONSTRUCTOR)
{
enum tree_code code = TREE_CODE (TREE_TYPE (e));
if (code == RECORD_TYPE || code == UNION_TYPE || code == ARRAY_TYPE)
{
pp_left_brace (ppi);
pp_c_initializer_list (ppi, e);
pp_right_brace (ppi);
}
else
pp_unsupported_tree (ppi, TREE_OPERAND (e, 1));
}
else
pp_assignment_expression (ppi, e);
}
static void
pp_c_initializer_list (ppi, e)
c_pretty_printer ppi;
tree e;
{
tree type = TREE_TYPE (e);
const enum tree_code code = TREE_CODE (type);
if (code == RECORD_TYPE || code == UNION_TYPE || code == ARRAY_TYPE)
{
tree init = TREE_OPERAND (e, 1);
for (; init != NULL_TREE; init = TREE_CHAIN (init))
{
if (code == RECORD_TYPE || code == UNION_TYPE)
{
pp_dot (ppi);
pp_c_primary_expression (ppi, TREE_PURPOSE (init));
}
else
{
pp_c_left_bracket (ppi);
if (TREE_PURPOSE (init))
pp_c_literal (ppi, TREE_PURPOSE (init));
pp_c_right_bracket (ppi);
}
pp_c_whitespace (ppi);
pp_equal (ppi);
pp_c_whitespace (ppi);
pp_initializer (ppi, TREE_VALUE (init));
if (TREE_CHAIN (init))
pp_separate_with (ppi, ',');
}
}
else
pp_unsupported_tree (ppi, type);
}
void
pp_c_postfix_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
enum tree_code code = TREE_CODE (e);
switch (code)
{
case POSTINCREMENT_EXPR:
case POSTDECREMENT_EXPR:
pp_postfix_expression (ppi, TREE_OPERAND (e, 0));
pp_identifier (ppi, code == POSTINCREMENT_EXPR ? "++" : "--");
break;
case ARROW_EXPR:
pp_postfix_expression (ppi, TREE_OPERAND (e, 0));
pp_arrow (ppi);
break;
case ARRAY_REF:
pp_postfix_expression (ppi, TREE_OPERAND (e, 0));
pp_c_left_bracket (ppi);
pp_c_expression (ppi, TREE_OPERAND (e, 1));
pp_c_right_bracket (ppi);
break;
case CALL_EXPR:
pp_postfix_expression (ppi, TREE_OPERAND (e, 0));
pp_c_left_paren (ppi);
pp_c_expression_list (ppi, TREE_OPERAND (e, 1));
pp_c_right_paren (ppi);
break;
case ABS_EXPR:
case FFS_EXPR:
pp_c_identifier (ppi,
code == ABS_EXPR ? "__builtin_abs" : "__builtin_ffs");
pp_c_left_paren (ppi);
pp_c_expression (ppi, TREE_OPERAND (e, 0));
pp_c_right_paren (ppi);
break;
case COMPONENT_REF:
{
tree object = TREE_OPERAND (e, 0);
if (TREE_CODE (object) == INDIRECT_REF)
{
pp_postfix_expression (ppi, TREE_OPERAND (object, 0));
pp_arrow (ppi);
}
else
{
pp_postfix_expression (ppi, object);
pp_dot (ppi);
}
pp_c_expression (ppi, TREE_OPERAND (e, 1));
}
break;
case COMPLEX_CST:
case VECTOR_CST:
case COMPLEX_EXPR:
pp_c_left_paren (ppi);
pp_type_id (ppi, TREE_TYPE (e));
pp_c_right_paren (ppi);
pp_left_brace (ppi);
if (code == COMPLEX_CST)
{
pp_c_expression (ppi, TREE_REALPART (e));
pp_separate_with (ppi, ',');
pp_c_expression (ppi, TREE_IMAGPART (e));
}
else if (code == VECTOR_CST)
pp_c_expression_list (ppi, TREE_VECTOR_CST_ELTS (e));
else if (code == COMPLEX_EXPR)
{
pp_c_expression (ppi, TREE_OPERAND (e, 0));
pp_separate_with (ppi, ',');
pp_c_expression (ppi, TREE_OPERAND (e, 1));
}
pp_right_brace (ppi);
break;
case COMPOUND_LITERAL_EXPR:
e = DECL_INITIAL (e);
/* Fall through. */
case CONSTRUCTOR:
pp_initializer (ppi, e);
break;
#if 0
case SRCLOC:
pp_left_paren (ppi);
pp_identifier (ppi, "__location__");
pp_right_paren (ppi);
pp_whitespace (ppi);
pp_left_brace (ppi);
pp_dot (ppi);
pp_identifier (ppi, "file");
pp_whitespace (ppi);
pp_equal (ppi);
pp_c_whitespace (ppi);
pp_c_expression (ppi, SRCLOC_FILE (e));
pp_separate_with (ppi, ',');
pp_dot (ppi);
pp_identifier (ppi, "line");
pp_whitespace (ppi);
pp_equal (ppi);
pp_c_whitespace (ppi);
pp_c_expression (ppi, SRCLOC_LINE (e));
pp_right_brace (ppi);
break;
#endif
case VA_ARG_EXPR:
pp_c_identifier (ppi, "__builtin_va_arg");
pp_c_left_paren (ppi);
pp_assignment_expression (ppi, TREE_OPERAND (e, 0));
pp_separate_with (ppi, ',');
pp_type_id (ppi, TREE_TYPE (e));
pp_c_right_paren (ppi);
break;
default:
pp_primary_expression (ppi, e);
break;
}
}
/* Print out an expression-list; E is expected to be a TREE_LIST */
void
pp_c_expression_list (ppi, e)
c_pretty_printer ppi;
tree e;
{
for (; e != NULL_TREE; e = TREE_CHAIN (e))
{
pp_c_assignment_expression (ppi, TREE_VALUE (e));
if (TREE_CHAIN (e))
pp_separate_with (ppi, ',');
}
}
static void
pp_c_unary_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
enum tree_code code = TREE_CODE (e);
switch (code)
{
case PREINCREMENT_EXPR:
case PREDECREMENT_EXPR:
pp_identifier (ppi, code == PREINCREMENT_EXPR ? "++" : "--");
pp_c_unary_expression (ppi, TREE_OPERAND (e, 0));
break;
case ADDR_EXPR:
case INDIRECT_REF:
case CONVERT_EXPR:
case NEGATE_EXPR:
case BIT_NOT_EXPR:
case TRUTH_NOT_EXPR:
case CONJ_EXPR:
if (code == ADDR_EXPR)
pp_ampersand (ppi);
else if (code == INDIRECT_REF)
pp_star (ppi);
else if (code == NEGATE_EXPR)
pp_minus (ppi);
else if (code == BIT_NOT_EXPR || code == CONJ_EXPR)
pp_complement (ppi);
else if (code == TRUTH_NOT_EXPR)
pp_exclamation (ppi);
pp_c_cast_expression (ppi, TREE_OPERAND (e, 0));
break;
case SIZEOF_EXPR:
case ALIGNOF_EXPR:
pp_c_identifier (ppi, code == SIZEOF_EXPR ? "sizeof" : "__alignof__");
pp_c_whitespace (ppi);
if (TYPE_P (TREE_OPERAND (e, 0)))
{
pp_c_left_paren (ppi);
pp_type_id (ppi, TREE_OPERAND (e, 0));
pp_c_right_paren (ppi);
}
else
pp_c_unary_expression (ppi, TREE_OPERAND (e, 0));
break;
case REALPART_EXPR:
case IMAGPART_EXPR:
pp_c_identifier (ppi, code == REALPART_EXPR ? "__real__" : "__imag__");
pp_c_whitespace (ppi);
pp_unary_expression (ppi, TREE_OPERAND (e, 0));
break;
default:
pp_postfix_expression (ppi, e);
break;
}
}
void
pp_c_cast_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
if (TREE_CODE (e) == CONVERT_EXPR || TREE_CODE (e) == FLOAT_EXPR)
{
pp_c_left_paren (ppi);
pp_type_id (ppi, TREE_TYPE (e));
pp_c_right_paren (ppi);
pp_c_cast_expression (ppi, TREE_OPERAND (e, 0));
}
else
pp_unary_expression (ppi, e);
}
static void
pp_c_multiplicative_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
enum tree_code code = TREE_CODE (e);
switch (code)
{
case MULT_EXPR:
case TRUNC_DIV_EXPR:
case TRUNC_MOD_EXPR:
pp_c_multiplicative_expression (ppi, TREE_OPERAND (e, 0));
pp_c_whitespace (ppi);
if (code == MULT_EXPR)
pp_star (ppi);
else if (code == TRUNC_DIV_EXPR)
pp_slash (ppi);
else
pp_modulo (ppi);
pp_c_whitespace (ppi);
pp_c_cast_expression (ppi, TREE_OPERAND (e, 1));
break;
default:
pp_c_cast_expression (ppi, e);
break;
}
}
static inline void
pp_c_additive_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
enum tree_code code = TREE_CODE (e);
switch (code)
{
case PLUS_EXPR:
case MINUS_EXPR:
pp_c_additive_expression (ppi, TREE_OPERAND (e, 0));
pp_c_whitespace (ppi);
if (code == PLUS_EXPR)
pp_plus (ppi);
else
pp_minus (ppi);
pp_c_whitespace (ppi);
pp_multiplicative_expression (ppi, TREE_OPERAND (e, 1));
break;
default:
pp_multiplicative_expression (ppi, e);
break;
}
}
static inline void
pp_c_shift_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
enum tree_code code = TREE_CODE (e);
switch (code)
{
case LSHIFT_EXPR:
case RSHIFT_EXPR:
pp_c_shift_expression (ppi, TREE_OPERAND (e, 0));
pp_c_whitespace (ppi);
pp_identifier (ppi, code == LSHIFT_EXPR ? "<<" : ">>");
pp_c_whitespace (ppi);
pp_c_additive_expression (ppi, TREE_OPERAND (e, 1));
break;
default:
pp_c_additive_expression (ppi, e);
}
}
static void
pp_c_relational_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
enum tree_code code = TREE_CODE (e);
switch (code)
{
case LT_EXPR:
case GT_EXPR:
case LE_EXPR:
case GE_EXPR:
pp_c_relational_expression (ppi, TREE_OPERAND (e, 0));
pp_c_whitespace (ppi);
if (code == LT_EXPR)
pp_less (ppi);
else if (code == GT_EXPR)
pp_greater (ppi);
else if (code == LE_EXPR)
pp_identifier (ppi, "<=");
else if (code == GE_EXPR)
pp_identifier (ppi, ">=");
pp_c_whitespace (ppi);
pp_c_shift_expression (ppi, TREE_OPERAND (e, 1));
break;
default:
pp_c_shift_expression (ppi, e);
break;
}
}
static inline void
pp_c_equality_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
enum tree_code code = TREE_CODE (e);
switch (code)
{
case EQ_EXPR:
case NE_EXPR:
pp_c_equality_expression (ppi, TREE_OPERAND (e, 0));
pp_c_maybe_whitespace (ppi);
pp_identifier (ppi, code == EQ_EXPR ? "==" : "!=");
pp_c_whitespace (ppi);
pp_c_relational_expression (ppi, TREE_OPERAND (e, 1));
break;
default:
pp_c_relational_expression (ppi, e);
break;
}
}
static inline void
pp_c_and_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
if (TREE_CODE (e) == BIT_AND_EXPR)
{
pp_c_and_expression (ppi, TREE_OPERAND (e, 0));
pp_c_maybe_whitespace (ppi);
pp_ampersand (ppi);
pp_c_whitespace (ppi);
pp_c_equality_expression (ppi, TREE_OPERAND (e, 1));
}
else
pp_c_equality_expression (ppi, e);
}
static inline void
pp_c_exclusive_or_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
if (TREE_CODE (e) == BIT_XOR_EXPR)
{
pp_c_exclusive_or_expression (ppi, TREE_OPERAND (e, 0));
pp_c_maybe_whitespace (ppi);
pp_carret (ppi);
pp_c_whitespace (ppi);
pp_c_and_expression (ppi, TREE_OPERAND (e, 1));
}
else
pp_c_and_expression (ppi, e);
}
static inline void
pp_c_inclusive_or_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
if (TREE_CODE (e) == BIT_IOR_EXPR)
{
pp_c_exclusive_or_expression (ppi, TREE_OPERAND (e, 0));
pp_c_maybe_whitespace (ppi);
pp_bar (ppi);
pp_c_whitespace (ppi);
pp_c_exclusive_or_expression (ppi, TREE_OPERAND (e, 1));
}
else
pp_c_exclusive_or_expression (ppi, e);
}
static inline void
pp_c_logical_and_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
if (TREE_CODE (e) == TRUTH_ANDIF_EXPR)
{
pp_c_logical_and_expression (ppi, TREE_OPERAND (e, 0));
pp_c_maybe_whitespace (ppi);
pp_identifier (ppi, "&&");
pp_c_whitespace (ppi);
pp_c_inclusive_or_expression (ppi, TREE_OPERAND (e, 1));
}
else
pp_c_inclusive_or_expression (ppi, e);
}
void
pp_c_logical_or_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
if (TREE_CODE (e) == TRUTH_ORIF_EXPR)
{
pp_c_logical_or_expression (ppi, TREE_OPERAND (e, 0));
pp_c_maybe_whitespace (ppi);
pp_identifier (ppi, "||");
pp_c_whitespace (ppi);
pp_c_logical_and_expression (ppi, TREE_OPERAND (e, 1));
}
else
pp_c_logical_and_expression (ppi, e);
}
static void
pp_c_conditional_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
if (TREE_CODE (e) == COND_EXPR)
{
pp_c_logical_or_expression (ppi, TREE_OPERAND (e, 0));
pp_c_maybe_whitespace (ppi);
pp_question (ppi);
pp_c_whitespace (ppi);
pp_c_expression (ppi, TREE_OPERAND (e, 1));
pp_c_maybe_whitespace (ppi);
pp_colon (ppi);
pp_c_whitespace (ppi);
pp_c_conditional_expression (ppi, TREE_OPERAND (e, 2));
}
else
pp_c_logical_or_expression (ppi, e);
}
/* Pretty-print a C assignment-expression. */
static void
pp_c_assignment_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
if (TREE_CODE (e) == MODIFY_EXPR || TREE_CODE (e) == INIT_EXPR)
{
pp_c_unary_expression (ppi, TREE_OPERAND (e, 0));
pp_c_maybe_whitespace (ppi);
pp_equal (ppi);
pp_whitespace (ppi);
pp_c_assignment_expression (ppi, TREE_OPERAND (e, 1));
}
else
pp_c_conditional_expression (ppi, e);
}
/* Pretty-print an expression. */
void
pp_c_expression (ppi, e)
c_pretty_printer ppi;
tree e;
{
switch (TREE_CODE (e))
{
case INTEGER_CST:
pp_c_integer_literal (ppi, e);
break;
case REAL_CST:
pp_c_real_literal (ppi, e);
break;
case STRING_CST:
pp_c_string_literal (ppi, e);
break;
case FUNCTION_DECL:
case VAR_DECL:
case CONST_DECL:
case PARM_DECL:
case RESULT_DECL:
case FIELD_DECL:
case LABEL_DECL:
case ERROR_MARK:
case TARGET_EXPR:
case STMT_EXPR:
pp_c_primary_expression (ppi, e);
break;
case POSTINCREMENT_EXPR:
case POSTDECREMENT_EXPR:
case ARROW_EXPR:
case ARRAY_REF:
case CALL_EXPR:
case COMPONENT_REF:
case COMPLEX_CST:
case VECTOR_CST:
case ABS_EXPR:
case FFS_EXPR:
case CONSTRUCTOR:
case COMPOUND_LITERAL_EXPR:
case COMPLEX_EXPR:
case VA_ARG_EXPR:
pp_c_postfix_expression (ppi, e);
break;
case CONJ_EXPR:
case ADDR_EXPR:
case INDIRECT_REF:
case NEGATE_EXPR:
case BIT_NOT_EXPR:
case TRUTH_NOT_EXPR:
case PREINCREMENT_EXPR:
case PREDECREMENT_EXPR:
case SIZEOF_EXPR:
case ALIGNOF_EXPR:
case REALPART_EXPR:
case IMAGPART_EXPR:
pp_c_unary_expression (ppi, e);
break;
case CONVERT_EXPR:
case FLOAT_EXPR:
pp_c_cast_expression (ppi, e);
break;
case MULT_EXPR:
case TRUNC_MOD_EXPR:
case TRUNC_DIV_EXPR:
pp_c_multiplicative_expression (ppi, e);
break;
case LSHIFT_EXPR:
case RSHIFT_EXPR:
pp_c_shift_expression (ppi, e);
break;
case LT_EXPR:
case GT_EXPR:
case LE_EXPR:
case GE_EXPR:
pp_c_relational_expression (ppi, e);
break;
case BIT_AND_EXPR:
pp_c_and_expression (ppi, e);
break;
case BIT_XOR_EXPR:
pp_c_exclusive_or_expression (ppi, e);
break;
case BIT_IOR_EXPR:
pp_c_inclusive_or_expression (ppi, e);
break;
case TRUTH_ANDIF_EXPR:
pp_c_logical_and_expression (ppi, e);
break;
case TRUTH_ORIF_EXPR:
pp_c_logical_or_expression (ppi, e);
break;
case COND_EXPR:
pp_c_conditional_expression (ppi, e);
break;
case MODIFY_EXPR:
case INIT_EXPR:
pp_c_assignment_expression (ppi, e);
break;
case NOP_EXPR:
pp_c_expression (ppi, TREE_OPERAND (e, 0));
break;
case COMPOUND_EXPR:
pp_c_left_paren (ppi);
pp_c_expression (ppi, TREE_OPERAND (e, 0));
pp_separate_with (ppi, ',');
pp_assignment_expression (ppi, TREE_OPERAND (e, 1));
pp_c_right_paren (ppi);
break;
default:
pp_unsupported_tree (ppi, e);
break;
}
}
/* Statements. */
void
pp_c_statement (ppi, stmt)
c_pretty_printer ppi;
tree stmt;
{
const enum tree_code code = TREE_CODE (stmt);
switch (code)
{
case LABEL_STMT:
case CASE_LABEL:
pp_newline (ppi);
if (code == LABEL_STMT)
pp_tree_identifier (ppi, DECL_NAME (LABEL_STMT_LABEL (stmt)));
else if (code == LABEL_STMT)
{
if (CASE_LOW (stmt) == NULL_TREE)
pp_identifier (ppi, "default");
else
{
pp_c_identifier (ppi, "case");
pp_c_whitespace (ppi);
pp_conditional_expression (ppi, CASE_LOW (stmt));
if (CASE_HIGH (stmt))
{
pp_identifier (ppi, "...");
pp_conditional_expression (ppi, CASE_HIGH (stmt));
}
}
}
pp_colon (ppi);
pp_newline_and_indent (ppi, 3);
break;
case COMPOUND_STMT:
pp_left_brace (ppi);
pp_newline_and_indent (ppi, 3);
for (stmt = COMPOUND_BODY (stmt); stmt; stmt = TREE_CHAIN (stmt))
pp_c_statement (ppi, stmt);
pp_newline_and_indent (ppi, -3);
pp_right_brace (ppi);
pp_newline (ppi);
break;
case EXPR_STMT:
case CLEANUP_STMT:
pp_newline (ppi);
pp_c_expression (ppi, code == EXPR_STMT
? EXPR_STMT_EXPR (stmt)
: CLEANUP_EXPR (stmt));
pp_semicolon (ppi);
pp_newline (ppi);
break;
case IF_STMT:
pp_c_identifier (ppi, "if");
pp_whitespace (ppi);
pp_c_left_paren (ppi);
pp_c_expression (ppi, IF_COND (stmt));
pp_right_paren (ppi);
pp_newline_and_indent (ppi, 3);
pp_statement (ppi, THEN_CLAUSE (stmt));
pp_newline_and_indent (ppi, -3);
if (ELSE_CLAUSE (stmt))
{
tree else_clause = ELSE_CLAUSE (stmt);
pp_c_identifier (ppi, "else");
if (TREE_CODE (else_clause) == IF_STMT)
pp_c_whitespace (ppi);
else
pp_newline_and_indent (ppi, 3);
pp_statement (ppi, else_clause);
if (TREE_CODE (else_clause) != IF_STMT)
pp_newline_and_indent (ppi, -3);
}
break;
case SWITCH_STMT:
pp_newline (ppi);
pp_c_identifier (ppi, "switch");
pp_whitespace (ppi);
pp_c_left_paren (ppi);
pp_c_expression (ppi, SWITCH_COND (stmt));
pp_right_paren (ppi);
pp_newline_and_indent (ppi, 3);
pp_statement (ppi, SWITCH_BODY (stmt));
pp_newline_and_indent (ppi, -3);
break;
case WHILE_STMT:
pp_c_identifier (ppi, "while");
pp_whitespace (ppi);
pp_c_left_paren (ppi);
pp_c_expression (ppi, WHILE_COND (stmt));
pp_right_paren (ppi);
pp_newline_and_indent (ppi, 3);
pp_statement (ppi, WHILE_BODY (stmt));
pp_newline_and_indent (ppi, -3);
break;
case DO_STMT:
pp_c_identifier (ppi, "do");
pp_newline_and_indent (ppi, 3);
pp_statement (ppi, DO_BODY (stmt));
pp_newline_and_indent (ppi, -3);
pp_c_identifier (ppi, "while");
pp_whitespace (ppi);
pp_c_left_paren (ppi);
pp_c_expression (ppi, DO_COND (stmt));
pp_c_right_paren (ppi);
pp_semicolon (ppi);
pp_newline (ppi);
break;
case FOR_STMT:
pp_c_identifier (ppi, "for");
pp_whitespace (ppi);
pp_c_left_paren (ppi);
pp_statement (ppi, FOR_INIT_STMT (stmt));
pp_c_whitespace (ppi);
if (FOR_COND (stmt))
pp_c_expression (ppi, FOR_COND (stmt));
pp_semicolon (ppi);
pp_c_whitespace (ppi);
if (FOR_EXPR (stmt))
pp_c_expression (ppi, FOR_EXPR (stmt));
pp_right_paren (ppi);
pp_newline_and_indent (ppi, 3);
pp_statement (ppi, FOR_BODY (stmt));
pp_newline_and_indent (ppi, -3);
break;
case BREAK_STMT:
case CONTINUE_STMT:
pp_newline (ppi);
pp_identifier (ppi, code == BREAK_STMT ? "break" : "continue");
pp_semicolon (ppi);
pp_newline (ppi);
break;
case RETURN_STMT:
case GOTO_STMT:
{
tree e = code == RETURN_STMT
? RETURN_STMT_EXPR (stmt)
: GOTO_DESTINATION (stmt);
pp_newline (ppi);
pp_c_identifier (ppi, code == RETURN_STMT ? "return" : "goto");
if (e)
pp_c_expression (ppi, e);
pp_semicolon (ppi);
pp_newline (ppi);
}
break;
case SCOPE_STMT:
if (!SCOPE_NULLIFIED_P (stmt) && SCOPE_NO_CLEANUPS_P (stmt))
{
if (SCOPE_BEGIN_P (stmt))
{
pp_left_brace (ppi);
pp_newline_and_indent (ppi, 3);
}
else if (SCOPE_END_P (stmt))
{
pp_right_brace (ppi);
pp_newline_and_indent (ppi, -3);
}
}
break;
case DECL_STMT:
pp_declaration (ppi, DECL_STMT_DECL (stmt));
pp_semicolon (ppi);
pp_newline (ppi);
break;
case ASM_STMT:
{
bool has_volatile_p = ASM_VOLATILE_P (stmt);
bool is_extended = has_volatile_p || ASM_INPUTS (stmt)
|| ASM_OUTPUTS (stmt) || ASM_CLOBBERS (stmt);
pp_c_identifier (ppi, is_extended ? "__asm__" : "asm");
if (has_volatile_p)
pp_c_identifier (ppi, "__volatile__");
pp_whitespace (ppi);
pp_c_left_paren (ppi);
pp_c_string_literal (ppi, ASM_STRING (stmt));
if (is_extended)
{
pp_whitespace (ppi);
pp_separate_with (ppi, ':');
if (ASM_OUTPUTS (stmt))
pp_c_expression (ppi, ASM_OUTPUTS (stmt));
pp_whitespace (ppi);
pp_separate_with (ppi, ':');
if (ASM_INPUTS (stmt))
pp_c_expression (ppi, ASM_INPUTS (stmt));
pp_whitespace (ppi);
pp_separate_with (ppi, ':');
if (ASM_CLOBBERS (stmt))
pp_c_expression (ppi, ASM_CLOBBERS (stmt));
}
pp_right_paren (ppi);
pp_newline (ppi);
}
break;
case FILE_STMT:
pp_c_identifier (ppi, "__FILE__");
pp_whitespace (ppi);
pp_equal (ppi);
pp_c_whitespace (ppi);
pp_c_identifier (ppi, FILE_STMT_FILENAME (stmt));
pp_semicolon (ppi);
pp_newline (ppi);
break;
default:
pp_unsupported_tree (ppi, stmt);
}
}
/* Initialize the PRETTY-PRINTER for handling C codes. */
void
pp_c_pretty_printer_init (pp)
c_pretty_printer pp;
{
pp->offset_list = 0;
pp->declaration = pp_c_declaration;
pp->declaration_specifiers = pp_c_declaration_specifiers;
pp->type_specifier = pp_c_simple_type_specifier;
pp->declarator = pp_c_declarator;
pp->direct_declarator = pp_c_direct_declarator;
pp->parameter_declaration = pp_c_parameter_declaration;
pp->type_id = pp_c_type_id;
pp->statement = pp_c_statement;
pp->primary_expression = pp_c_primary_expression;
pp->postfix_expression = pp_c_postfix_expression;
pp->unary_expression = pp_c_unary_expression;
pp->initializer = pp_c_initializer;
pp->multiplicative_expression = pp_c_multiplicative_expression;
pp->conditional_expression = pp_c_conditional_expression;
pp->assignment_expression = pp_c_assignment_expression;
}
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