/* Subroutines common to both C and C++ pretty-printers. Copyright (C) 2002 Free Software Foundation, Inc. Contributed by Gabriel Dos Reis 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 "coretypes.h" #include "tm.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, ""); break; #if 0 case UNKNOWN_TYPE: pp_c_identifier (ppi, ""); 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, ""); 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, ""); if (TYPE_NAME (t)) pp_c_tree_identifier (ppi, TYPE_NAME (t)); else pp_c_identifier (ppi, ""); 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, ""); break; case RESULT_DECL: pp_c_identifier (ppi, ""); 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; }