/* Subroutines common to both C and C++ pretty-printers. Copyright (C) 2002, 2003, 2004 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" /* 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) #define pp_c_left_bracket(PP) \ do { \ pp_left_bracket (PP); \ pp_base (PP)->padding = pp_none; \ } while (0) #define pp_c_right_bracket(PP) \ do { \ pp_right_bracket (PP); \ pp_base (PP)->padding = pp_none; \ } while (0) #define pp_c_star(PP) \ do { \ pp_star (PP); \ pp_base (PP)->padding = pp_none; \ } 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_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_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; } static void pp_c_cv_qualifier (c_pretty_printer *pp, const char *cv) { const char *p = pp_last_position_in_text (pp); if (p != NULL && *p == '*') pp_c_whitespace (pp); pp_c_identifier (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); } 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 volatile */ void pp_c_type_qualifier_list (c_pretty_printer *pp, tree t) { int qualifiers; 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__"); } /* 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; 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_identifier (pp, ""); break; case IDENTIFIER_NODE: pp_c_tree_identifier (pp, t); break; case VOID_TYPE: case BOOLEAN_TYPE: case CHAR_TYPE: case INTEGER_TYPE: case REAL_TYPE: if (TYPE_NAME (t)) t = TYPE_NAME (t); else t = c_common_type_for_mode (TYPE_MODE (t), TREE_UNSIGNED (t)); pp_c_type_specifier (pp, t); break; case TYPE_DECL: if (DECL_NAME (t)) pp_id_expression (pp, t); else pp_c_identifier (pp, ""); break; case UNION_TYPE: case RECORD_TYPE: case ENUMERAL_TYPE: if (code == UNION_TYPE) pp_c_identifier (pp, "union"); else if (code == RECORD_TYPE) pp_c_identifier (pp, "struct"); else if (code == ENUMERAL_TYPE) pp_c_identifier (pp, "enum"); else pp_c_identifier (pp, ""); if (TYPE_NAME (t)) pp_id_expression (pp, TYPE_NAME (t)); else pp_c_identifier (pp, ""); 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); } 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: pp_c_specifier_qualifier_list (pp, TREE_TYPE (t)); if (code == COMPLEX_TYPE) pp_c_identifier (pp, flag_isoc99 ? "_Complex" : "__complex__"); else if (code == VECTOR_TYPE) pp_c_identifier (pp, "__vector__"); 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_identifier (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)) pp_expression (pp, TYPE_MAX_VALUE (TYPE_DOMAIN (t))); 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 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_identifier (pp, "typedef"); else if (DECL_P (t)) { if (DECL_REGISTER (t)) pp_c_identifier (pp, "register"); else if (TREE_STATIC (t) && TREE_CODE (t) == VAR_DECL) pp_c_identifier (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_identifier (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-declaratpr ( 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: if (DECL_NAME (t)) { pp_c_space_for_pointer_operator (pp, TREE_TYPE (t)); pp_c_tree_identifier (pp, DECL_NAME (t)); } 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_identifier (pp, DECL_NAME (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 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 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_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_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. */ static void pp_c_char (c_pretty_printer *pp, int c) { switch (c) { case TARGET_NEWLINE: pp_string (pp, "\\n"); break; case TARGET_TAB: pp_string (pp, "\\t"); break; case TARGET_VT: pp_string (pp, "\\v"); break; case TARGET_BS: pp_string (pp, "\\b"); break; case TARGET_CR: pp_string (pp, "\\r"); break; case TARGET_FF: pp_string (pp, "\\f"); break; case TARGET_BELL: pp_string (pp, "\\a"); break; case '\\': pp_string (pp, "\\\\"); break; case '\'': pp_string (pp, "\\'"); break; case '\"': pp_string (pp, "\\\""); break; default: if (ISPRINT (c)) pp_character (pp, c); else pp_scalar (pp, "\\%03o", (unsigned) c); break; } } /* 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); } 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 { if (tree_int_cst_sgn (i) < 0) { pp_c_char (pp, '-'); i = build_int_2 (-TREE_INT_CST_LOW (i), ~TREE_INT_CST_HIGH (i) + !TREE_INT_CST_LOW (i)); } sprintf (pp_buffer (pp)->digit_buffer, HOST_WIDE_INT_PRINT_DOUBLE_HEX, TREE_INT_CST_HIGH (i), TREE_INT_CST_LOW (i)); pp_string (pp, pp_buffer (pp)->digit_buffer); } if (TREE_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, TREE_UNSIGNED (type))) pp_c_char (pp, tree_low_cst (c, TREE_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_identifier (pp, "false"); else if (flag_isoc99) pp_c_identifier (pp, "_False"); else pp_unsupported_tree (pp, b); } else if (b == boolean_true_node) { if (c_dialect_cxx ()) pp_c_identifier (pp, "true"); else if (flag_isoc99) pp_c_identifier (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'); } /* 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; } } /* constant: integer-constant floating-constant enumeration-constant character-constant */ void pp_c_constant (c_pretty_printer *pp, tree e) { const enum tree_code code = TREE_CODE (e); switch (code) { case INTEGER_CST: { tree type = TREE_TYPE (e); if (type == boolean_type_node) pp_c_bool_constant (pp, e); else if (type == char_type_node) pp_c_character_constant (pp, e); else if (TREE_CODE (type) == ENUMERAL_TYPE && pp_c_enumeration_constant (pp, e)) ; else pp_c_integer_constant (pp, e); } break; case REAL_CST: pp_c_floating_constant (pp, e); break; case STRING_CST: pp_c_string_literal (pp, e); break; default: pp_unsupported_tree (pp, e); break; } } void pp_c_identifier (c_pretty_printer *pp, const char *id) { pp_c_maybe_whitespace (pp); pp_identifier (pp, id); pp_base (pp)->padding = pp_before; } /* Pretty-print a C primary-expression. primary-expression: identifier constant string-literal ( expression ) */ void pp_c_primary_expression (c_pretty_printer *pp, 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 (pp, e); break; case ERROR_MARK: pp_c_identifier (pp, ""); break; case RESULT_DECL: pp_c_identifier (pp, ""); break; case INTEGER_CST: case REAL_CST: case STRING_CST: pp_c_constant (pp, e); break; case STMT_EXPR: pp_c_left_paren (pp); pp_statement (pp, STMT_EXPR_STMT (e)); pp_c_right_paren (pp); break; default: /* FIXME: Make sure we won't get into an infinie loop. */ pp_c_left_paren (pp); pp_expression (pp, e); pp_c_right_paren (pp); break; } } /* Print out a C initializer -- also support C compound-literals. initializer: assignment-expression: { initializer-list } { initializer-list , } */ static void pp_c_initializer (c_pretty_printer *pp, 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_c_brace_enclosed_initializer_list (pp, e); else pp_unsupported_tree (pp, TREE_OPERAND (e, 1)); } else pp_expression (pp, e); } /* init-declarator: declarator: declarator = initializer */ void pp_c_init_declarator (c_pretty_printer *pp, tree t) { pp_declarator (pp, t); if (DECL_INITIAL (t)) { tree init = DECL_INITIAL (t); /* This C++ bit is handled here because it is easier to do so. In templates, the C++ parser builds a TREE_LIST for a direct-initialization; the TREE_PURPOSE is the variable to initialize and the TREE_VALUE is the initializer. */ if (TREE_CODE (init) == TREE_LIST) { pp_c_left_paren (pp); pp_expression (pp, TREE_VALUE (init)); pp_right_paren (pp); } else { pp_space (pp); pp_equal (pp); pp_space (pp); pp_c_initializer (pp, init); } } } /* initializer-list: designation(opt) initializer initializer-list , designation(opt) initializer designation: designator-list = designator-list: designator designator-list designator designator: [ constant-expression ] identifier */ static void pp_c_initializer_list (c_pretty_printer *pp, tree e) { tree type = TREE_TYPE (e); const enum tree_code code = TREE_CODE (type); switch (code) { case RECORD_TYPE: case UNION_TYPE: case ARRAY_TYPE: { tree init = TREE_OPERAND (e, 0); for (; init != NULL_TREE; init = TREE_CHAIN (init)) { if (code == RECORD_TYPE || code == UNION_TYPE) { pp_c_dot (pp); pp_c_primary_expression (pp, TREE_PURPOSE (init)); } else { pp_c_left_bracket (pp); if (TREE_PURPOSE (init)) pp_c_constant (pp, TREE_PURPOSE (init)); pp_c_right_bracket (pp); } pp_c_whitespace (pp); pp_equal (pp); pp_c_whitespace (pp); pp_initializer (pp, TREE_VALUE (init)); if (TREE_CHAIN (init)) pp_separate_with (pp, ','); } } break; case VECTOR_TYPE: pp_c_expression_list (pp, TREE_VECTOR_CST_ELTS (e)); break; case COMPLEX_TYPE: { const bool cst = TREE_CODE (e) == COMPLEX_CST; pp_expression (pp, cst ? TREE_REALPART (e) : TREE_OPERAND (e, 0)); pp_separate_with (pp, ','); pp_expression (pp, cst ? TREE_IMAGPART (e) : TREE_OPERAND (e, 1)); } break; default: pp_unsupported_tree (pp, type); break; } } /* Pretty-print a brace-enclosed initializer-list. */ static void pp_c_brace_enclosed_initializer_list (c_pretty_printer *pp, tree l) { pp_c_left_brace (pp); pp_c_initializer_list (pp, l); pp_c_right_brace (pp); } /* This is a convenient function, used to bridge gap between C and C++ grammars. id-expression: identifier */ void pp_c_id_expression (c_pretty_printer *pp, tree t) { switch (TREE_CODE (t)) { case VAR_DECL: case PARM_DECL: case CONST_DECL: case TYPE_DECL: case FUNCTION_DECL: case FIELD_DECL: case LABEL_DECL: t = DECL_NAME (t); case IDENTIFIER_NODE: pp_c_tree_identifier (pp, t); break; default: pp_unsupported_tree (pp, t); break; } } /* postfix-expression: primary-expression postfix-expression [ expression ] postfix-expression ( argument-expression-list(opt) ) postfix-expression . identifier postfix-expression -> identifier postfix-expression ++ postfix-expression -- ( type-name ) { initializer-list } ( type-name ) { initializer-list , } */ void pp_c_postfix_expression (c_pretty_printer *pp, tree e) { enum tree_code code = TREE_CODE (e); switch (code) { case POSTINCREMENT_EXPR: case POSTDECREMENT_EXPR: pp_postfix_expression (pp, TREE_OPERAND (e, 0)); pp_identifier (pp, code == POSTINCREMENT_EXPR ? "++" : "--"); break; case ARROW_EXPR: pp_postfix_expression (pp, TREE_OPERAND (e, 0)); pp_c_arrow (pp); break; case ARRAY_REF: pp_postfix_expression (pp, TREE_OPERAND (e, 0)); pp_c_left_bracket (pp); pp_expression (pp, TREE_OPERAND (e, 1)); pp_c_right_bracket (pp); break; case CALL_EXPR: pp_postfix_expression (pp, TREE_OPERAND (e, 0)); pp_c_call_argument_list (pp, TREE_OPERAND (e, 1)); break; case ABS_EXPR: pp_c_identifier (pp, "__builtin_abs"); pp_c_left_paren (pp); pp_expression (pp, TREE_OPERAND (e, 0)); pp_c_right_paren (pp); break; case COMPONENT_REF: { tree object = TREE_OPERAND (e, 0); if (TREE_CODE (object) == INDIRECT_REF) { pp_postfix_expression (pp, TREE_OPERAND (object, 0)); pp_c_arrow (pp); } else { pp_postfix_expression (pp, object); pp_c_dot (pp); } pp_expression (pp, TREE_OPERAND (e, 1)); } break; case COMPLEX_CST: case VECTOR_CST: case COMPLEX_EXPR: pp_c_compound_literal (pp, e); break; case COMPOUND_LITERAL_EXPR: e = DECL_INITIAL (COMPOUND_LITERAL_EXPR_DECL (e)); /* Fall through. */ case CONSTRUCTOR: pp_initializer (pp, e); break; case VA_ARG_EXPR: pp_c_identifier (pp, "__builtin_va_arg"); pp_c_left_paren (pp); pp_assignment_expression (pp, TREE_OPERAND (e, 0)); pp_separate_with (pp, ','); pp_type_id (pp, TREE_TYPE (e)); pp_c_right_paren (pp); break; case ADDR_EXPR: if (TREE_CODE (TREE_OPERAND (e, 0)) == FUNCTION_DECL) { pp_c_id_expression (pp, TREE_OPERAND (e, 0)); break; } /* else fall through. */ default: pp_primary_expression (pp, e); break; } } /* Print out an expression-list; E is expected to be a TREE_LIST. */ void pp_c_expression_list (c_pretty_printer *pp, tree e) { for (; e != NULL_TREE; e = TREE_CHAIN (e)) { pp_expression (pp, TREE_VALUE (e)); if (TREE_CHAIN (e)) pp_separate_with (pp, ','); } } /* Print out an expression-list in parens, as in a function call. */ void pp_c_call_argument_list (c_pretty_printer *pp, tree t) { pp_c_left_paren (pp); if (t && TREE_CODE (t) == TREE_LIST) pp_c_expression_list (pp, t); pp_c_right_paren (pp); } /* unary-expression: postfix-expression ++ cast-expression -- cast-expression unary-operator cast-expression sizeof unary-expression sizeof ( type-id ) unary-operator: one of * & + - ! ~ GNU extensions. unary-expression: __alignof__ unary-expression __alignof__ ( type-id ) __real__ unary-expression __imag__ unary-expression */ void pp_c_unary_expression (c_pretty_printer *pp, tree e) { enum tree_code code = TREE_CODE (e); switch (code) { case PREINCREMENT_EXPR: case PREDECREMENT_EXPR: pp_identifier (pp, code == PREINCREMENT_EXPR ? "++" : "--"); pp_c_unary_expression (pp, TREE_OPERAND (e, 0)); break; case ADDR_EXPR: case INDIRECT_REF: case NEGATE_EXPR: case BIT_NOT_EXPR: case TRUTH_NOT_EXPR: case CONJ_EXPR: /* String literal are used by address. */ if (code == ADDR_EXPR && TREE_CODE (TREE_OPERAND (e, 0)) != STRING_CST) pp_ampersand (pp); else if (code == INDIRECT_REF) pp_c_star (pp); else if (code == NEGATE_EXPR) pp_minus (pp); else if (code == BIT_NOT_EXPR || code == CONJ_EXPR) pp_complement (pp); else if (code == TRUTH_NOT_EXPR) pp_exclamation (pp); pp_c_cast_expression (pp, TREE_OPERAND (e, 0)); break; case SIZEOF_EXPR: case ALIGNOF_EXPR: pp_c_identifier (pp, code == SIZEOF_EXPR ? "sizeof" : "__alignof__"); pp_c_whitespace (pp); if (TYPE_P (TREE_OPERAND (e, 0))) pp_c_type_cast (pp, TREE_OPERAND (e, 0)); else pp_unary_expression (pp, TREE_OPERAND (e, 0)); break; case REALPART_EXPR: case IMAGPART_EXPR: pp_c_identifier (pp, code == REALPART_EXPR ? "__real__" : "__imag__"); pp_c_whitespace (pp); pp_unary_expression (pp, TREE_OPERAND (e, 0)); break; default: pp_postfix_expression (pp, e); break; } } /* cast-expression: unary-expression ( type-name ) cast-expression */ void pp_c_cast_expression (c_pretty_printer *pp, tree e) { switch (TREE_CODE (e)) { case FLOAT_EXPR: case FIX_TRUNC_EXPR: case CONVERT_EXPR: pp_c_type_cast (pp, TREE_TYPE (e)); pp_c_cast_expression (pp, TREE_OPERAND (e, 0)); break; default: pp_unary_expression (pp, e); } } /* multiplicative-expression: cast-expression multiplicative-expression * cast-expression multiplicative-expression / cast-expression multiplicative-expression % cast-expression */ static void pp_c_multiplicative_expression (c_pretty_printer *pp, tree e) { enum tree_code code = TREE_CODE (e); switch (code) { case MULT_EXPR: case TRUNC_DIV_EXPR: case TRUNC_MOD_EXPR: pp_multiplicative_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); if (code == MULT_EXPR) pp_c_star (pp); else if (code == TRUNC_DIV_EXPR) pp_slash (pp); else pp_modulo (pp); pp_c_whitespace (pp); pp_c_cast_expression (pp, TREE_OPERAND (e, 1)); break; default: pp_c_cast_expression (pp, e); break; } } /* additive-expression: multiplicative-expression additive-expression + multiplicative-expression additive-expression - multiplicative-expression */ static void pp_c_additive_expression (c_pretty_printer *pp, tree e) { enum tree_code code = TREE_CODE (e); switch (code) { case PLUS_EXPR: case MINUS_EXPR: pp_c_additive_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); if (code == PLUS_EXPR) pp_plus (pp); else pp_minus (pp); pp_c_whitespace (pp); pp_multiplicative_expression (pp, TREE_OPERAND (e, 1)); break; default: pp_multiplicative_expression (pp, e); break; } } /* additive-expression: additive-expression shift-expression << additive-expression shift-expression >> additive-expression */ static void pp_c_shift_expression (c_pretty_printer *pp, tree e) { enum tree_code code = TREE_CODE (e); switch (code) { case LSHIFT_EXPR: case RSHIFT_EXPR: pp_c_shift_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); pp_identifier (pp, code == LSHIFT_EXPR ? "<<" : ">>"); pp_c_whitespace (pp); pp_c_additive_expression (pp, TREE_OPERAND (e, 1)); break; default: pp_c_additive_expression (pp, e); } } /* relational-expression: shift-expression relational-expression < shift-expression relational-expression > shift-expression relational-expression <= shift-expression relational-expression >= shift-expression */ static void pp_c_relational_expression (c_pretty_printer *pp, 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 (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); if (code == LT_EXPR) pp_less (pp); else if (code == GT_EXPR) pp_greater (pp); else if (code == LE_EXPR) pp_identifier (pp, "<="); else if (code == GE_EXPR) pp_identifier (pp, ">="); pp_c_whitespace (pp); pp_c_shift_expression (pp, TREE_OPERAND (e, 1)); break; default: pp_c_shift_expression (pp, e); break; } } /* equality-expression: relational-expression equality-expression == relational-expression equality-equality != relational-expression */ static void pp_c_equality_expression (c_pretty_printer *pp, tree e) { enum tree_code code = TREE_CODE (e); switch (code) { case EQ_EXPR: case NE_EXPR: pp_c_equality_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); pp_identifier (pp, code == EQ_EXPR ? "==" : "!="); pp_c_whitespace (pp); pp_c_relational_expression (pp, TREE_OPERAND (e, 1)); break; default: pp_c_relational_expression (pp, e); break; } } /* AND-expression: equality-expression AND-expression & equality-equality */ static void pp_c_and_expression (c_pretty_printer *pp, tree e) { if (TREE_CODE (e) == BIT_AND_EXPR) { pp_c_and_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); pp_ampersand (pp); pp_c_whitespace (pp); pp_c_equality_expression (pp, TREE_OPERAND (e, 1)); } else pp_c_equality_expression (pp, e); } /* exclusive-OR-expression: AND-expression exclusive-OR-expression ^ AND-expression */ static void pp_c_exclusive_or_expression (c_pretty_printer *pp, tree e) { if (TREE_CODE (e) == BIT_XOR_EXPR) { pp_c_exclusive_or_expression (pp, TREE_OPERAND (e, 0)); pp_c_maybe_whitespace (pp); pp_carret (pp); pp_c_whitespace (pp); pp_c_and_expression (pp, TREE_OPERAND (e, 1)); } else pp_c_and_expression (pp, e); } /* inclusive-OR-expression: exclusive-OR-expression inclusive-OR-expression | exclusive-OR-expression */ static void pp_c_inclusive_or_expression (c_pretty_printer *pp, tree e) { if (TREE_CODE (e) == BIT_IOR_EXPR) { pp_c_exclusive_or_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); pp_bar (pp); pp_c_whitespace (pp); pp_c_exclusive_or_expression (pp, TREE_OPERAND (e, 1)); } else pp_c_exclusive_or_expression (pp, e); } /* logical-AND-expression: inclusive-OR-expression logical-AND-expression && inclusive-OR-expression */ static void pp_c_logical_and_expression (c_pretty_printer *pp, tree e) { if (TREE_CODE (e) == TRUTH_ANDIF_EXPR) { pp_c_logical_and_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); pp_identifier (pp, "&&"); pp_c_whitespace (pp); pp_c_inclusive_or_expression (pp, TREE_OPERAND (e, 1)); } else pp_c_inclusive_or_expression (pp, e); } /* logical-OR-expression: logical-AND-expression logical-OR-expression || logical-AND-expression */ void pp_c_logical_or_expression (c_pretty_printer *pp, tree e) { if (TREE_CODE (e) == TRUTH_ORIF_EXPR) { pp_c_logical_or_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); pp_identifier (pp, "||"); pp_c_whitespace (pp); pp_c_logical_and_expression (pp, TREE_OPERAND (e, 1)); } else pp_c_logical_and_expression (pp, e); } /* conditional-expression: logical-OR-expression logical-OR-expression ? expression : conditional-expression */ static void pp_c_conditional_expression (c_pretty_printer *pp, tree e) { if (TREE_CODE (e) == COND_EXPR) { pp_c_logical_or_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); pp_question (pp); pp_c_whitespace (pp); pp_expression (pp, TREE_OPERAND (e, 1)); pp_c_whitespace (pp); pp_colon (pp); pp_c_whitespace (pp); pp_c_conditional_expression (pp, TREE_OPERAND (e, 2)); } else pp_c_logical_or_expression (pp, e); } /* assignment-expression: conditional-expression unary-expression assignment-operator assignment-expression assignment-expression: one of = *= /= %= += -= >>= <<= &= ^= |= */ static void pp_c_assignment_expression (c_pretty_printer *pp, tree e) { if (TREE_CODE (e) == MODIFY_EXPR || TREE_CODE (e) == INIT_EXPR) { pp_c_unary_expression (pp, TREE_OPERAND (e, 0)); pp_c_whitespace (pp); pp_equal (pp); pp_space (pp); pp_c_expression (pp, TREE_OPERAND (e, 1)); } else pp_c_conditional_expression (pp, e); } /* expression: assignment-expression expression , assignment-expression Implementation note: instead of going through the usual recursion chain, I take the liberty of dispatching nodes to the appropriate functions. This makes some redundancy, but it worths it. That also prevents a possible infinite recursion between pp_c_primary_expression () and pp_c_expression (). */ void pp_c_expression (c_pretty_printer *pp, tree e) { switch (TREE_CODE (e)) { case INTEGER_CST: pp_c_integer_constant (pp, e); break; case REAL_CST: pp_c_floating_constant (pp, e); break; case STRING_CST: pp_c_string_literal (pp, e); break; case IDENTIFIER_NODE: 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 STMT_EXPR: pp_primary_expression (pp, e); break; case POSTINCREMENT_EXPR: case POSTDECREMENT_EXPR: case ARROW_EXPR: case ARRAY_REF: case CALL_EXPR: case COMPONENT_REF: case COMPLEX_CST: case COMPLEX_EXPR: case VECTOR_CST: case ABS_EXPR: case CONSTRUCTOR: case COMPOUND_LITERAL_EXPR: case VA_ARG_EXPR: pp_postfix_expression (pp, 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 (pp, e); break; case FLOAT_EXPR: case FIX_TRUNC_EXPR: case CONVERT_EXPR: pp_c_cast_expression (pp, e); break; case MULT_EXPR: case TRUNC_MOD_EXPR: case TRUNC_DIV_EXPR: pp_multiplicative_expression (pp, e); break; case LSHIFT_EXPR: case RSHIFT_EXPR: pp_c_shift_expression (pp, e); break; case LT_EXPR: case GT_EXPR: case LE_EXPR: case GE_EXPR: pp_c_relational_expression (pp, e); break; case BIT_AND_EXPR: pp_c_and_expression (pp, e); break; case BIT_XOR_EXPR: pp_c_exclusive_or_expression (pp, e); break; case BIT_IOR_EXPR: pp_c_inclusive_or_expression (pp, e); break; case TRUTH_ANDIF_EXPR: pp_c_logical_and_expression (pp, e); break; case TRUTH_ORIF_EXPR: pp_c_logical_or_expression (pp, e); break; case EQ_EXPR: case NE_EXPR: pp_c_equality_expression (pp, e); break; case COND_EXPR: pp_conditional_expression (pp, e); break; case PLUS_EXPR: case MINUS_EXPR: pp_c_additive_expression (pp, e); break; case MODIFY_EXPR: case INIT_EXPR: pp_assignment_expression (pp, e); break; case COMPOUND_EXPR: pp_c_left_paren (pp); pp_expression (pp, TREE_OPERAND (e, 0)); pp_separate_with (pp, ','); pp_assignment_expression (pp, TREE_OPERAND (e, 1)); pp_c_right_paren (pp); break; case NOP_EXPR: case NON_LVALUE_EXPR: case SAVE_EXPR: case UNSAVE_EXPR: pp_expression (pp, TREE_OPERAND (e, 0)); break; case TARGET_EXPR: pp_postfix_expression (pp, TREE_OPERAND (e, 1)); break; default: pp_unsupported_tree (pp, e); break; } } /* Statements. */ /* statement: labeled-statement compound-statement expression-statement selection-statement iteration-statement jump-statement */ void pp_c_statement (c_pretty_printer *pp, tree stmt) { enum tree_code code; if (stmt == NULL) return; code = TREE_CODE (stmt); switch (code) { /* labeled-statement: identifier : statement case constant-expression : statement default : statement */ case LABEL_STMT: case CASE_LABEL: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, -3); else pp_indentation (pp) -= 3; if (code == LABEL_STMT) pp_tree_identifier (pp, DECL_NAME (LABEL_STMT_LABEL (stmt))); else if (code == CASE_LABEL) { if (CASE_LOW (stmt) == NULL_TREE) pp_identifier (pp, "default"); else { pp_c_identifier (pp, "case"); pp_c_whitespace (pp); pp_conditional_expression (pp, CASE_LOW (stmt)); if (CASE_HIGH (stmt)) { pp_identifier (pp, "..."); pp_conditional_expression (pp, CASE_HIGH (stmt)); } } } pp_colon (pp); pp_indentation (pp) += 3; pp_needs_newline (pp) = true; break; /* compound-statement: { block-item-list(opt) } block-item-list: block-item block-item-list block-item block-item: declaration statement */ case COMPOUND_STMT: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); pp_c_left_brace (pp); pp_newline_and_indent (pp, 3); for (stmt = COMPOUND_BODY (stmt); stmt; stmt = TREE_CHAIN (stmt)) pp_statement (pp, stmt); pp_newline_and_indent (pp, -3); pp_c_right_brace (pp); pp_needs_newline (pp) = true; break; /* expression-statement: expression(opt) ; */ case EXPR_STMT: case CLEANUP_STMT: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); { tree e = code == EXPR_STMT ? EXPR_STMT_EXPR (stmt) : CLEANUP_EXPR (stmt); if (e) pp_expression (pp, e); } pp_c_semicolon (pp); pp_needs_newline (pp) = true; break; /* selection-statement: if ( expression ) statement if ( expression ) statement else statement switch ( expression ) statement */ case IF_STMT: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); pp_c_identifier (pp, "if"); pp_c_whitespace (pp); pp_c_left_paren (pp); pp_expression (pp, IF_COND (stmt)); pp_c_right_paren (pp); pp_newline_and_indent (pp, 3); pp_statement (pp, THEN_CLAUSE (stmt)); pp_newline_and_indent (pp, -3); if (ELSE_CLAUSE (stmt)) { tree else_clause = ELSE_CLAUSE (stmt); pp_c_identifier (pp, "else"); if (TREE_CODE (else_clause) == IF_STMT) pp_c_whitespace (pp); else pp_newline_and_indent (pp, 3); pp_statement (pp, else_clause); if (TREE_CODE (else_clause) != IF_STMT) pp_newline_and_indent (pp, -3); } break; case SWITCH_STMT: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); pp_c_identifier (pp, "switch"); pp_space (pp); pp_c_left_paren (pp); pp_expression (pp, SWITCH_COND (stmt)); pp_c_right_paren (pp); pp_indentation (pp) += 3; pp_needs_newline (pp) = true; pp_statement (pp, SWITCH_BODY (stmt)); pp_newline_and_indent (pp, -3); break; /* iteration-statement: while ( expression ) statement do statement while ( expression ) ; for ( expression(opt) ; expression(opt) ; expression(opt) ) statement for ( declaration expression(opt) ; expression(opt) ) statement */ case WHILE_STMT: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); pp_c_identifier (pp, "while"); pp_space (pp); pp_c_left_paren (pp); pp_expression (pp, WHILE_COND (stmt)); pp_c_right_paren (pp); pp_newline_and_indent (pp, 3); pp_statement (pp, WHILE_BODY (stmt)); pp_indentation (pp) -= 3; pp_needs_newline (pp) = true; break; case DO_STMT: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); pp_c_identifier (pp, "do"); pp_newline_and_indent (pp, 3); pp_statement (pp, DO_BODY (stmt)); pp_newline_and_indent (pp, -3); pp_c_identifier (pp, "while"); pp_space (pp); pp_c_left_paren (pp); pp_expression (pp, DO_COND (stmt)); pp_c_right_paren (pp); pp_c_semicolon (pp); pp_needs_newline (pp) = true; break; case FOR_STMT: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); pp_c_identifier (pp, "for"); pp_space (pp); pp_c_left_paren (pp); if (FOR_INIT_STMT (stmt)) pp_statement (pp, FOR_INIT_STMT (stmt)); else pp_c_semicolon (pp); pp_needs_newline (pp) = false; pp_c_whitespace (pp); if (FOR_COND (stmt)) pp_expression (pp, FOR_COND (stmt)); pp_c_semicolon (pp); pp_needs_newline (pp) = false; pp_c_whitespace (pp); if (FOR_EXPR (stmt)) pp_expression (pp, FOR_EXPR (stmt)); pp_c_right_paren (pp); pp_newline_and_indent (pp, 3); pp_statement (pp, FOR_BODY (stmt)); pp_indentation (pp) -= 3; pp_needs_newline (pp) = true; break; /* jump-statement: goto identifier; continue ; return expression(opt) ; */ case BREAK_STMT: case CONTINUE_STMT: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); pp_identifier (pp, code == BREAK_STMT ? "break" : "continue"); pp_c_semicolon (pp); pp_needs_newline (pp) = true; break; case RETURN_STMT: case GOTO_STMT: { tree e = code == RETURN_STMT ? RETURN_STMT_EXPR (stmt) : GOTO_DESTINATION (stmt); if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); pp_c_identifier (pp, code == RETURN_STMT ? "return" : "goto"); pp_c_whitespace (pp); if (e) { if (TREE_CODE (e) == INIT_EXPR && TREE_CODE (TREE_OPERAND (e, 0)) == RESULT_DECL) e = TREE_OPERAND (e, 1); pp_expression (pp, e); } pp_c_semicolon (pp); pp_needs_newline (pp) = true; } break; case SCOPE_STMT: if (!SCOPE_NULLIFIED_P (stmt) && SCOPE_NO_CLEANUPS_P (stmt)) { int i = 0; if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); if (SCOPE_BEGIN_P (stmt)) { pp_left_brace (pp); i = 3; } else if (SCOPE_END_P (stmt)) { pp_right_brace (pp); i = -3; } pp_indentation (pp) += i; pp_needs_newline (pp) = true; } break; case DECL_STMT: if (pp_needs_newline (pp)) pp_newline_and_indent (pp, 0); pp_declaration (pp, DECL_STMT_DECL (stmt)); pp_needs_newline (pp) = true; 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 (pp, is_extended ? "__asm__" : "asm"); if (has_volatile_p) pp_c_identifier (pp, "__volatile__"); pp_space (pp); pp_c_left_paren (pp); pp_c_string_literal (pp, ASM_STRING (stmt)); if (is_extended) { pp_space (pp); pp_separate_with (pp, ':'); if (ASM_OUTPUTS (stmt)) pp_expression (pp, ASM_OUTPUTS (stmt)); pp_space (pp); pp_separate_with (pp, ':'); if (ASM_INPUTS (stmt)) pp_expression (pp, ASM_INPUTS (stmt)); pp_space (pp); pp_separate_with (pp, ':'); if (ASM_CLOBBERS (stmt)) pp_expression (pp, ASM_CLOBBERS (stmt)); } pp_c_right_paren (pp); pp_newline (pp); } break; case FILE_STMT: pp_c_identifier (pp, "__FILE__"); pp_space (pp); pp_equal (pp); pp_c_whitespace (pp); pp_c_identifier (pp, FILE_STMT_FILENAME (stmt)); pp_c_semicolon (pp); pp_needs_newline (pp) = true; break; default: pp_unsupported_tree (pp, stmt); } } /* Initialize the PRETTY-PRINTER for handling C codes. */ void pp_c_pretty_printer_init (c_pretty_printer *pp) { pp->offset_list = 0; pp->declaration = pp_c_declaration; pp->declaration_specifiers = pp_c_declaration_specifiers; pp->declarator = pp_c_declarator; pp->direct_declarator = pp_c_direct_declarator; pp->type_specifier_seq = pp_c_specifier_qualifier_list; pp->abstract_declarator = pp_c_abstract_declarator; pp->direct_abstract_declarator = pp_c_direct_abstract_declarator; pp->ptr_operator = pp_c_pointer; pp->parameter_list = pp_c_parameter_type_list; pp->type_id = pp_c_type_id; pp->simple_type_specifier = pp_c_type_specifier; pp->function_specifier = pp_c_function_specifier; pp->storage_class_specifier = pp_c_storage_class_specifier; pp->statement = pp_c_statement; pp->id_expression = pp_c_id_expression; 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; pp->expression = pp_c_expression; }