X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast.c;h=baa472da2f833301de01c34eedd4eb6fbaee1ee5;hb=ef3b0164cbb6c9d616c3fdad92fb8da669e4b5d7;hp=1aa92548703db540ecda436a6c9a645469cb58a2;hpb=a3396048eb34c4e2a972167e2b6ec73d8282501f;p=cparser diff --git a/ast.c b/ast.c index 1aa9254..baa472d 100644 --- a/ast.c +++ b/ast.c @@ -1,21 +1,6 @@ /* * This file is part of cparser. - * Copyright (C) 2007-2009 Matthias Braun - * - * This program 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 - * of the License, or (at your option) any later version. - * - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - * 02111-1307, USA. + * Copyright (C) 2012 Matthias Braun */ #include @@ -24,29 +9,19 @@ #include "type_t.h" #include "parser.h" #include "lang_features.h" -#include "entity_t.h" #include "printer.h" +#include "separator_t.h" #include "types.h" -#include -#include -#include #include -#if defined(__INTEL_COMPILER) -#include -#elif defined(__CYGWIN__) -#include "win32/cygwin_math_ext.h" -#else -#include -#endif - #include "adt/error.h" #include "adt/util.h" struct obstack ast_obstack; static int indent; +static int case_indent; bool print_implicit_casts = false; bool print_parenthesis = false; @@ -63,14 +38,7 @@ void change_indent(int delta) void print_indent(void) { for (int i = 0; i < indent; ++i) - print_string("\t"); -} - -static void print_stringrep(const string_t *string) -{ - for (size_t i = 0; i < string->size; ++i) { - print_char(string->begin[i]); - } + print_char('\t'); } /** @@ -100,91 +68,88 @@ static int right_to_left(unsigned precedence) static unsigned get_expression_precedence(expression_kind_t kind) { static const unsigned prec[] = { - [EXPR_INVALID] = PREC_PRIMARY, - [EXPR_REFERENCE] = PREC_PRIMARY, - [EXPR_REFERENCE_ENUM_VALUE] = PREC_PRIMARY, - [EXPR_LITERAL_INTEGER] = PREC_PRIMARY, - [EXPR_LITERAL_INTEGER_OCTAL] = PREC_PRIMARY, - [EXPR_LITERAL_INTEGER_HEXADECIMAL] = PREC_PRIMARY, - [EXPR_LITERAL_FLOATINGPOINT] = PREC_PRIMARY, - [EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL] = PREC_PRIMARY, - [EXPR_LITERAL_CHARACTER] = PREC_PRIMARY, - [EXPR_LITERAL_WIDE_CHARACTER] = PREC_PRIMARY, - [EXPR_LITERAL_MS_NOOP] = PREC_PRIMARY, - [EXPR_STRING_LITERAL] = PREC_PRIMARY, - [EXPR_WIDE_STRING_LITERAL] = PREC_PRIMARY, - [EXPR_COMPOUND_LITERAL] = PREC_UNARY, - [EXPR_CALL] = PREC_POSTFIX, - [EXPR_CONDITIONAL] = PREC_CONDITIONAL, - [EXPR_SELECT] = PREC_POSTFIX, - [EXPR_ARRAY_ACCESS] = PREC_POSTFIX, - [EXPR_SIZEOF] = PREC_UNARY, - [EXPR_CLASSIFY_TYPE] = PREC_UNARY, - [EXPR_ALIGNOF] = PREC_UNARY, - - [EXPR_FUNCNAME] = PREC_PRIMARY, - [EXPR_BUILTIN_CONSTANT_P] = PREC_PRIMARY, - [EXPR_BUILTIN_TYPES_COMPATIBLE_P] = PREC_PRIMARY, - [EXPR_OFFSETOF] = PREC_PRIMARY, - [EXPR_VA_START] = PREC_PRIMARY, - [EXPR_VA_ARG] = PREC_PRIMARY, - [EXPR_VA_COPY] = PREC_PRIMARY, - [EXPR_STATEMENT] = PREC_PRIMARY, - [EXPR_LABEL_ADDRESS] = PREC_PRIMARY, - - [EXPR_UNARY_NEGATE] = PREC_UNARY, - [EXPR_UNARY_PLUS] = PREC_UNARY, - [EXPR_UNARY_BITWISE_NEGATE] = PREC_UNARY, - [EXPR_UNARY_NOT] = PREC_UNARY, - [EXPR_UNARY_DEREFERENCE] = PREC_UNARY, - [EXPR_UNARY_TAKE_ADDRESS] = PREC_UNARY, - [EXPR_UNARY_POSTFIX_INCREMENT] = PREC_POSTFIX, - [EXPR_UNARY_POSTFIX_DECREMENT] = PREC_POSTFIX, - [EXPR_UNARY_PREFIX_INCREMENT] = PREC_UNARY, - [EXPR_UNARY_PREFIX_DECREMENT] = PREC_UNARY, - [EXPR_UNARY_CAST] = PREC_UNARY, - [EXPR_UNARY_ASSUME] = PREC_PRIMARY, - [EXPR_UNARY_DELETE] = PREC_UNARY, - [EXPR_UNARY_DELETE_ARRAY] = PREC_UNARY, - [EXPR_UNARY_THROW] = PREC_ASSIGNMENT, - - [EXPR_BINARY_ADD] = PREC_ADDITIVE, - [EXPR_BINARY_SUB] = PREC_ADDITIVE, - [EXPR_BINARY_MUL] = PREC_MULTIPLICATIVE, - [EXPR_BINARY_DIV] = PREC_MULTIPLICATIVE, - [EXPR_BINARY_MOD] = PREC_MULTIPLICATIVE, - [EXPR_BINARY_EQUAL] = PREC_EQUALITY, - [EXPR_BINARY_NOTEQUAL] = PREC_EQUALITY, - [EXPR_BINARY_LESS] = PREC_RELATIONAL, - [EXPR_BINARY_LESSEQUAL] = PREC_RELATIONAL, - [EXPR_BINARY_GREATER] = PREC_RELATIONAL, - [EXPR_BINARY_GREATEREQUAL] = PREC_RELATIONAL, - [EXPR_BINARY_BITWISE_AND] = PREC_AND, - [EXPR_BINARY_BITWISE_OR] = PREC_OR, - [EXPR_BINARY_BITWISE_XOR] = PREC_XOR, - [EXPR_BINARY_LOGICAL_AND] = PREC_LOGICAL_AND, - [EXPR_BINARY_LOGICAL_OR] = PREC_LOGICAL_OR, - [EXPR_BINARY_SHIFTLEFT] = PREC_SHIFT, - [EXPR_BINARY_SHIFTRIGHT] = PREC_SHIFT, - [EXPR_BINARY_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_MUL_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_DIV_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_MOD_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_ADD_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_SUB_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_SHIFTLEFT_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_SHIFTRIGHT_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_BITWISE_AND_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_BITWISE_XOR_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_BITWISE_OR_ASSIGN] = PREC_ASSIGNMENT, - [EXPR_BINARY_COMMA] = PREC_EXPRESSION, - - [EXPR_BINARY_ISGREATER] = PREC_PRIMARY, - [EXPR_BINARY_ISGREATEREQUAL] = PREC_PRIMARY, - [EXPR_BINARY_ISLESS] = PREC_PRIMARY, - [EXPR_BINARY_ISLESSEQUAL] = PREC_PRIMARY, - [EXPR_BINARY_ISLESSGREATER] = PREC_PRIMARY, - [EXPR_BINARY_ISUNORDERED] = PREC_PRIMARY + [EXPR_ERROR] = PREC_PRIMARY, + [EXPR_REFERENCE] = PREC_PRIMARY, + [EXPR_ENUM_CONSTANT] = PREC_PRIMARY, + [EXPR_LITERAL_INTEGER] = PREC_PRIMARY, + [EXPR_LITERAL_FLOATINGPOINT] = PREC_PRIMARY, + [EXPR_LITERAL_CHARACTER] = PREC_PRIMARY, + [EXPR_LITERAL_MS_NOOP] = PREC_PRIMARY, + [EXPR_STRING_LITERAL] = PREC_PRIMARY, + [EXPR_COMPOUND_LITERAL] = PREC_UNARY, + [EXPR_CALL] = PREC_POSTFIX, + [EXPR_CONDITIONAL] = PREC_CONDITIONAL, + [EXPR_SELECT] = PREC_POSTFIX, + [EXPR_ARRAY_ACCESS] = PREC_POSTFIX, + [EXPR_SIZEOF] = PREC_UNARY, + [EXPR_CLASSIFY_TYPE] = PREC_UNARY, + [EXPR_ALIGNOF] = PREC_UNARY, + + [EXPR_FUNCNAME] = PREC_PRIMARY, + [EXPR_BUILTIN_CONSTANT_P] = PREC_PRIMARY, + [EXPR_BUILTIN_TYPES_COMPATIBLE_P] = PREC_PRIMARY, + [EXPR_OFFSETOF] = PREC_PRIMARY, + [EXPR_VA_START] = PREC_PRIMARY, + [EXPR_VA_ARG] = PREC_PRIMARY, + [EXPR_VA_COPY] = PREC_PRIMARY, + [EXPR_STATEMENT] = PREC_PRIMARY, + [EXPR_LABEL_ADDRESS] = PREC_PRIMARY, + + [EXPR_UNARY_NEGATE] = PREC_UNARY, + [EXPR_UNARY_PLUS] = PREC_UNARY, + [EXPR_UNARY_COMPLEMENT] = PREC_UNARY, + [EXPR_UNARY_NOT] = PREC_UNARY, + [EXPR_UNARY_DEREFERENCE] = PREC_UNARY, + [EXPR_UNARY_TAKE_ADDRESS] = PREC_UNARY, + [EXPR_UNARY_POSTFIX_INCREMENT] = PREC_POSTFIX, + [EXPR_UNARY_POSTFIX_DECREMENT] = PREC_POSTFIX, + [EXPR_UNARY_PREFIX_INCREMENT] = PREC_UNARY, + [EXPR_UNARY_PREFIX_DECREMENT] = PREC_UNARY, + [EXPR_UNARY_CAST] = PREC_UNARY, + [EXPR_UNARY_ASSUME] = PREC_PRIMARY, + [EXPR_UNARY_DELETE] = PREC_UNARY, + [EXPR_UNARY_DELETE_ARRAY] = PREC_UNARY, + [EXPR_UNARY_THROW] = PREC_ASSIGNMENT, + [EXPR_UNARY_IMAG] = PREC_UNARY, + [EXPR_UNARY_REAL] = PREC_UNARY, + + [EXPR_BINARY_ADD] = PREC_ADDITIVE, + [EXPR_BINARY_SUB] = PREC_ADDITIVE, + [EXPR_BINARY_MUL] = PREC_MULTIPLICATIVE, + [EXPR_BINARY_DIV] = PREC_MULTIPLICATIVE, + [EXPR_BINARY_MOD] = PREC_MULTIPLICATIVE, + [EXPR_BINARY_EQUAL] = PREC_EQUALITY, + [EXPR_BINARY_NOTEQUAL] = PREC_EQUALITY, + [EXPR_BINARY_LESS] = PREC_RELATIONAL, + [EXPR_BINARY_LESSEQUAL] = PREC_RELATIONAL, + [EXPR_BINARY_GREATER] = PREC_RELATIONAL, + [EXPR_BINARY_GREATEREQUAL] = PREC_RELATIONAL, + [EXPR_BINARY_BITWISE_AND] = PREC_AND, + [EXPR_BINARY_BITWISE_OR] = PREC_OR, + [EXPR_BINARY_BITWISE_XOR] = PREC_XOR, + [EXPR_BINARY_LOGICAL_AND] = PREC_LOGICAL_AND, + [EXPR_BINARY_LOGICAL_OR] = PREC_LOGICAL_OR, + [EXPR_BINARY_SHIFTLEFT] = PREC_SHIFT, + [EXPR_BINARY_SHIFTRIGHT] = PREC_SHIFT, + [EXPR_BINARY_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_MUL_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_DIV_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_MOD_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_ADD_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_SUB_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_SHIFTLEFT_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_SHIFTRIGHT_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_BITWISE_AND_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_BITWISE_XOR_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_BITWISE_OR_ASSIGN] = PREC_ASSIGNMENT, + [EXPR_BINARY_COMMA] = PREC_EXPRESSION, + + [EXPR_BINARY_ISGREATER] = PREC_PRIMARY, + [EXPR_BINARY_ISGREATEREQUAL] = PREC_PRIMARY, + [EXPR_BINARY_ISLESS] = PREC_PRIMARY, + [EXPR_BINARY_ISLESSEQUAL] = PREC_PRIMARY, + [EXPR_BINARY_ISLESSGREATER] = PREC_PRIMARY, + [EXPR_BINARY_ISUNORDERED] = PREC_PRIMARY }; assert((size_t)kind < lengthof(prec)); unsigned res = prec[kind]; @@ -198,17 +163,17 @@ static unsigned get_expression_precedence(expression_kind_t kind) * * @param string the string constant * @param border the border char - * @param skip number of chars to skip at the end */ -static void print_quoted_string(const string_t *const string, char border, - int skip) +static void print_quoted_string(const string_t *const string, char border) { + print_string(get_string_encoding_prefix(string->encoding)); + print_char(border); - const char *end = string->begin + string->size - skip; + const char *end = string->begin + string->size; for (const char *c = string->begin; c != end; ++c) { const char tc = *c; if (tc == border) { - print_string("\\"); + print_char('\\'); } switch (tc) { case '\\': print_string("\\\\"); break; @@ -237,12 +202,9 @@ static void print_quoted_string(const string_t *const string, char border, print_char(border); } -static void print_string_literal(const string_literal_expression_t *literal) +static void print_string_literal(string_literal_expression_t const *const literal, char const delimiter) { - if (literal->base.kind == EXPR_WIDE_STRING_LITERAL) { - print_char('L'); - } - print_quoted_string(&literal->value, '"', 1); + print_quoted_string(&literal->value, delimiter); } static void print_literal(const literal_expression_t *literal) @@ -251,24 +213,13 @@ static void print_literal(const literal_expression_t *literal) case EXPR_LITERAL_MS_NOOP: print_string("__noop"); return; - case EXPR_LITERAL_INTEGER_HEXADECIMAL: - case EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL: - print_string("0x"); - /* FALLTHROUGH */ + case EXPR_LITERAL_BOOLEAN: - case EXPR_LITERAL_INTEGER: - case EXPR_LITERAL_INTEGER_OCTAL: case EXPR_LITERAL_FLOATINGPOINT: - print_stringrep(&literal->value); - if (literal->suffix.size > 0) - print_stringrep(&literal->suffix); - return; - case EXPR_LITERAL_WIDE_CHARACTER: - print_char('L'); - /* FALLTHROUGH */ - case EXPR_LITERAL_CHARACTER: - print_quoted_string(&literal->value, '\'', 0); + case EXPR_LITERAL_INTEGER: + print_string(literal->value.begin); return; + default: break; } @@ -293,9 +244,9 @@ static void print_funcname(const funcname_expression_t *funcname) static void print_compound_literal( const compound_literal_expression_t *expression) { - print_string("("); + print_char('('); print_type(expression->type); - print_string(")"); + print_char(')'); print_initializer(expression->initializer); } @@ -312,20 +263,13 @@ static void print_assignment_expression(const expression_t *const expr) static void print_call_expression(const call_expression_t *call) { print_expression_prec(call->function, PREC_POSTFIX); - print_string("("); - call_argument_t *argument = call->arguments; - int first = 1; - while (argument != NULL) { - if (!first) { - print_string(", "); - } else { - first = 0; - } - print_assignment_expression(argument->expression); - - argument = argument->next; + print_char('('); + separator_t sep = { "", ", " }; + for (call_argument_t const *arg = call->arguments; arg; arg = arg->next) { + print_string(sep_next(&sep)); + print_assignment_expression(arg->expression); } - print_string(")"); + print_char(')'); } /** @@ -387,16 +331,18 @@ static void print_unary_expression(const unary_expression_t *unexpr) { unsigned prec = get_expression_precedence(unexpr->base.kind); switch (unexpr->base.kind) { - case EXPR_UNARY_NEGATE: print_string("-"); break; - case EXPR_UNARY_PLUS: print_string("+"); break; - case EXPR_UNARY_NOT: print_string("!"); break; - case EXPR_UNARY_BITWISE_NEGATE: print_string("~"); break; - case EXPR_UNARY_PREFIX_INCREMENT: print_string("++"); break; - case EXPR_UNARY_PREFIX_DECREMENT: print_string("--"); break; - case EXPR_UNARY_DEREFERENCE: print_string("*"); break; - case EXPR_UNARY_TAKE_ADDRESS: print_string("&"); break; - case EXPR_UNARY_DELETE: print_string("delete "); break; + case EXPR_UNARY_NEGATE: print_char ('-' ); break; + case EXPR_UNARY_PLUS: print_char ('+' ); break; + case EXPR_UNARY_NOT: print_char ('!' ); break; + case EXPR_UNARY_COMPLEMENT: print_char ('~' ); break; + case EXPR_UNARY_PREFIX_INCREMENT: print_string("++"); break; + case EXPR_UNARY_PREFIX_DECREMENT: print_string("--"); break; + case EXPR_UNARY_DEREFERENCE: print_char ('*' ); break; + case EXPR_UNARY_TAKE_ADDRESS: print_char ('&' ); break; + case EXPR_UNARY_DELETE: print_string("delete "); break; case EXPR_UNARY_DELETE_ARRAY: print_string("delete [] "); break; + case EXPR_UNARY_REAL: print_string("__real__ "); break; + case EXPR_UNARY_IMAG: print_string("__imag__ "); break; case EXPR_UNARY_POSTFIX_INCREMENT: print_expression_prec(unexpr->value, prec); @@ -407,16 +353,15 @@ static void print_unary_expression(const unary_expression_t *unexpr) print_string("--"); return; case EXPR_UNARY_CAST: - print_string("("); + print_char('('); print_type(unexpr->base.type); - print_string(")"); + print_char(')'); break; case EXPR_UNARY_ASSUME: print_string("__assume("); print_assignment_expression(unexpr->value); - print_string(")"); + print_char(')'); return; - case EXPR_UNARY_THROW: if (unexpr->value == NULL) { print_string("throw"); @@ -460,14 +405,14 @@ static void print_array_expression(const array_access_expression_t *expression) { if (!expression->flipped) { print_expression_prec(expression->array_ref, PREC_POSTFIX); - print_string("["); + print_char('['); print_expression(expression->index); - print_string("]"); + print_char(']'); } else { print_expression_prec(expression->index, PREC_POSTFIX); - print_string("["); + print_char('['); print_expression(expression->array_ref); - print_string("]"); + print_char(']'); } } @@ -478,19 +423,18 @@ static void print_array_expression(const array_access_expression_t *expression) */ static void print_typeprop_expression(const typeprop_expression_t *expression) { - if (expression->base.kind == EXPR_SIZEOF) { - print_string("sizeof"); - } else { - assert(expression->base.kind == EXPR_ALIGNOF); - print_string("__alignof__"); + switch (expression->base.kind) { + case EXPR_SIZEOF: print_string("sizeof"); break; + case EXPR_ALIGNOF: print_string(c_mode & _C11 ? "_Alignof" : "__alignof__"); break; + default: panic("invalid typeprop kind"); } if (expression->tp_expression != NULL) { /* PREC_TOP: always print the '()' here, sizeof x is right but unusual */ print_expression_prec(expression->tp_expression, PREC_TOP); } else { - print_string("("); + print_char('('); print_type(expression->type); - print_string(")"); + print_char(')'); } } @@ -503,7 +447,7 @@ static void print_builtin_constant(const builtin_constant_expression_t *expressi { print_string("__builtin_constant_p("); print_assignment_expression(expression->value); - print_string(")"); + print_char(')'); } /** @@ -518,7 +462,7 @@ static void print_builtin_types_compatible( print_type(expression->left); print_string(", "); print_type(expression->right); - print_string(")"); + print_char(')'); } /** @@ -550,8 +494,8 @@ static void print_va_start(const va_start_expression_t *const expression) print_string("__builtin_va_start("); print_assignment_expression(expression->ap); print_string(", "); - print_string(expression->parameter->base.base.symbol->string); - print_string(")"); + print_assignment_expression(expression->parameter); + print_char(')'); } /** @@ -565,7 +509,7 @@ static void print_va_arg(const va_arg_expression_t *expression) print_assignment_expression(expression->ap); print_string(", "); print_type(expression->base.type); - print_string(")"); + print_char(')'); } /** @@ -579,7 +523,7 @@ static void print_va_copy(const va_copy_expression_t *expression) print_assignment_expression(expression->dst); print_string(", "); print_assignment_expression(expression->src); - print_string(")"); + print_char(')'); } /** @@ -590,10 +534,16 @@ static void print_va_copy(const va_copy_expression_t *expression) static void print_select(const select_expression_t *expression) { print_expression_prec(expression->compound, PREC_POSTFIX); + /* do not print anything for anonymous struct/union selects + * FIXME: if the anonymous select was a '->' this will print '.' + */ + if (expression->compound_entry->base.symbol == NULL) + return; + if (is_type_pointer(skip_typeref(expression->compound->base.type))) { print_string("->"); } else { - print_string("."); + print_char('.'); } print_string(expression->compound_entry->base.symbol->string); } @@ -608,7 +558,7 @@ static void print_classify_type_expression( { print_string("__builtin_classify_type("); print_assignment_expression(expr->type_expression); - print_string(")"); + print_char(')'); } /** @@ -620,11 +570,15 @@ static void print_designator(const designator_t *designator) { for ( ; designator != NULL; designator = designator->next) { if (designator->symbol == NULL) { - print_string("["); + print_char('['); print_expression(designator->array_index); - print_string("]"); + if (designator->range_last) { + print_string(" ... "); + print_expression(designator->range_last); + } + print_char(']'); } else { - print_string("."); + print_char('.'); print_string(designator->symbol->string); } } @@ -639,9 +593,9 @@ static void print_offsetof_expression(const offsetof_expression_t *expression) { print_string("__builtin_offsetof("); print_type(expression->type); - print_string(","); + print_char(','); print_designator(expression->designator); - print_string(")"); + print_char(')'); } /** @@ -651,9 +605,36 @@ static void print_offsetof_expression(const offsetof_expression_t *expression) */ static void print_statement_expression(const statement_expression_t *expression) { - print_string("("); + print_char('('); print_statement(expression->statement); - print_string(")"); + print_char(')'); +} + +static bool needs_parentheses(expression_t const *const expr, unsigned const top_prec) +{ + if (expr->base.parenthesized) + return true; + + if (top_prec > get_expression_precedence(expr->base.kind)) + return true; + + if (print_parenthesis && top_prec != PREC_BOTTOM) { + switch (expr->kind) { + case EXPR_ENUM_CONSTANT: + case EXPR_FUNCNAME: + case EXPR_LITERAL_CASES: + case EXPR_LITERAL_CHARACTER: + case EXPR_REFERENCE: + case EXPR_STRING_LITERAL: + /* Do not print () around subexpressions consisting of a single token. */ + return false; + + default: + return true; + } + } + + return false; } /** @@ -662,102 +643,63 @@ static void print_statement_expression(const statement_expression_t *expression) * @param expression the expression to print * @param top_prec the precedence of the user of this expression. */ -static void print_expression_prec(const expression_t *expression, unsigned top_prec) +static void print_expression_prec(expression_t const *expr, unsigned const top_prec) { - if (expression->kind == EXPR_UNARY_CAST - && expression->base.implicit && !print_implicit_casts) { - expression = expression->unary.value; + if (expr->kind == EXPR_UNARY_CAST && expr->base.implicit && !print_implicit_casts) { + expr = expr->unary.value; } - bool parenthesized = - expression->base.parenthesized || - (print_parenthesis && top_prec != PREC_BOTTOM) || - top_prec > get_expression_precedence(expression->base.kind); + bool const parenthesized = needs_parentheses(expr, top_prec); if (parenthesized) - print_string("("); - switch (expression->kind) { - case EXPR_ERROR: - print_string("$error$"); - break; - case EXPR_WIDE_STRING_LITERAL: - case EXPR_STRING_LITERAL: - print_string_literal(&expression->string_literal); - break; - EXPR_LITERAL_CASES - print_literal(&expression->literal); - break; - case EXPR_FUNCNAME: - print_funcname(&expression->funcname); - break; - case EXPR_COMPOUND_LITERAL: - print_compound_literal(&expression->compound_literal); - break; - case EXPR_CALL: - print_call_expression(&expression->call); - break; - EXPR_BINARY_CASES - print_binary_expression(&expression->binary); - break; - case EXPR_REFERENCE: - case EXPR_REFERENCE_ENUM_VALUE: - print_reference_expression(&expression->reference); - break; - case EXPR_ARRAY_ACCESS: - print_array_expression(&expression->array_access); - break; - case EXPR_LABEL_ADDRESS: - print_label_address_expression(&expression->label_address); - break; - EXPR_UNARY_CASES - print_unary_expression(&expression->unary); - break; - case EXPR_SIZEOF: + print_char('('); + switch (expr->kind) { case EXPR_ALIGNOF: - print_typeprop_expression(&expression->typeprop); - break; - case EXPR_BUILTIN_CONSTANT_P: - print_builtin_constant(&expression->builtin_constant); - break; - case EXPR_BUILTIN_TYPES_COMPATIBLE_P: - print_builtin_types_compatible(&expression->builtin_types_compatible); - break; - case EXPR_CONDITIONAL: - print_conditional(&expression->conditional); - break; - case EXPR_VA_START: - print_va_start(&expression->va_starte); - break; - case EXPR_VA_ARG: - print_va_arg(&expression->va_arge); - break; - case EXPR_VA_COPY: - print_va_copy(&expression->va_copye); - break; - case EXPR_SELECT: - print_select(&expression->select); - break; - case EXPR_CLASSIFY_TYPE: - print_classify_type_expression(&expression->classify_type); - break; - case EXPR_OFFSETOF: - print_offsetof_expression(&expression->offsetofe); + case EXPR_SIZEOF: print_typeprop_expression( &expr->typeprop); break; + case EXPR_ARRAY_ACCESS: print_array_expression( &expr->array_access); break; + case EXPR_BINARY_CASES: print_binary_expression( &expr->binary); break; + case EXPR_BUILTIN_CONSTANT_P: print_builtin_constant( &expr->builtin_constant); break; + case EXPR_BUILTIN_TYPES_COMPATIBLE_P: print_builtin_types_compatible(&expr->builtin_types_compatible); break; + case EXPR_CALL: print_call_expression( &expr->call); break; + case EXPR_CLASSIFY_TYPE: print_classify_type_expression(&expr->classify_type); break; + case EXPR_COMPOUND_LITERAL: print_compound_literal( &expr->compound_literal); break; + case EXPR_CONDITIONAL: print_conditional( &expr->conditional); break; + case EXPR_ERROR: print_string("$error$"); break; + case EXPR_FUNCNAME: print_funcname( &expr->funcname); break; + case EXPR_LABEL_ADDRESS: print_label_address_expression(&expr->label_address); break; + case EXPR_LITERAL_CASES: print_literal( &expr->literal); break; + case EXPR_LITERAL_CHARACTER: print_string_literal( &expr->string_literal, '\''); break; + case EXPR_OFFSETOF: print_offsetof_expression( &expr->offsetofe); break; + case EXPR_REFERENCE: + case EXPR_ENUM_CONSTANT: print_reference_expression( &expr->reference); break; + case EXPR_SELECT: print_select( &expr->select); break; + case EXPR_STATEMENT: print_statement_expression( &expr->statement); break; + case EXPR_STRING_LITERAL: print_string_literal( &expr->string_literal, '"'); break; + case EXPR_UNARY_CASES: print_unary_expression( &expr->unary); break; + case EXPR_VA_ARG: print_va_arg( &expr->va_arge); break; + case EXPR_VA_COPY: print_va_copy( &expr->va_copye); break; + case EXPR_VA_START: print_va_start( &expr->va_starte); break; + } + if (parenthesized) + print_char(')'); +} + +static void print_indented_statement(statement_t const *const stmt) +{ + switch (stmt->kind) { + case STATEMENT_LABEL: break; - case EXPR_STATEMENT: - print_statement_expression(&expression->statement); + + case STATEMENT_CASE_LABEL: + for (int i = 0; i != case_indent; ++i) + print_char('\t'); break; - case EXPR_INVALID: - panic("invalid expression found"); -#if 0 default: - /* TODO */ - print_format("some expression of type %d", (int)expression->kind); + print_indent(); break; -#endif } - if (parenthesized) - print_string(")"); + print_statement(stmt); } /** @@ -770,19 +712,14 @@ static void print_compound_statement(const compound_statement_t *block) print_string("{\n"); ++indent; - statement_t *statement = block->statements; - while (statement != NULL) { - if (statement->base.kind == STATEMENT_CASE_LABEL) - --indent; - if (statement->kind != STATEMENT_LABEL) - print_indent(); - print_statement(statement); - - statement = statement->base.next; + for (statement_t const *stmt = block->statements; stmt; stmt = stmt->base.next) { + print_indented_statement(stmt); + print_char('\n'); } + --indent; print_indent(); - print_string(block->stmt_expr ? "}" : "}\n"); + print_char('}'); } /** @@ -796,9 +733,9 @@ static void print_return_statement(const return_statement_t *statement) if (val != NULL) { print_string("return "); print_expression(val); - print_string(";\n"); + print_char(';'); } else { - print_string("return;\n"); + print_string("return;"); } } @@ -810,7 +747,19 @@ static void print_return_statement(const return_statement_t *statement) static void print_expression_statement(const expression_statement_t *statement) { print_expression(statement->expression); - print_string(";\n"); + print_char(';'); +} + +/** + * Print a computed goto statement. + * + * @param statement the computed goto statement + */ +static void print_computed_goto_statement(computed_goto_statement_t const *const stmt) +{ + print_string("goto *"); + print_expression(stmt->expression); + print_char(';'); } /** @@ -821,13 +770,8 @@ static void print_expression_statement(const expression_statement_t *statement) static void print_goto_statement(const goto_statement_t *statement) { print_string("goto "); - if (statement->expression != NULL) { - print_string("*"); - print_expression(statement->expression); - } else { - print_string(statement->label->base.symbol->string); - } - print_string(";\n"); + print_string(statement->label->base.symbol->string); + print_char(';'); } /** @@ -838,8 +782,30 @@ static void print_goto_statement(const goto_statement_t *statement) static void print_label_statement(const label_statement_t *statement) { print_format("%s:\n", statement->label->base.symbol->string); - print_indent(); - print_statement(statement->statement); + print_indented_statement(statement->statement); +} + +static void print_inner_statement(statement_t const *const stmt) +{ + if (stmt->kind == STATEMENT_COMPOUND) { + print_char(' '); + print_compound_statement(&stmt->compound); + } else { + print_char('\n'); + ++indent; + print_indented_statement(stmt); + --indent; + } +} + +static void print_after_inner_statement(statement_t const *const stmt) +{ + if (stmt->kind == STATEMENT_COMPOUND) { + print_char(' '); + } else { + print_char('\n'); + print_indent(); + } } /** @@ -851,13 +817,19 @@ static void print_if_statement(const if_statement_t *statement) { print_string("if ("); print_expression(statement->condition); - print_string(") "); - print_statement(statement->true_statement); - - if (statement->false_statement != NULL) { - print_indent(); - print_string("else "); - print_statement(statement->false_statement); + print_char(')'); + print_inner_statement(statement->true_statement); + + statement_t const *const f = statement->false_statement; + if (f) { + print_after_inner_statement(statement->true_statement); + print_string("else"); + if (f->kind == STATEMENT_IF) { + print_char(' '); + print_if_statement(&f->ifs); + } else { + print_inner_statement(f); + } } } @@ -868,10 +840,15 @@ static void print_if_statement(const if_statement_t *statement) */ static void print_switch_statement(const switch_statement_t *statement) { + int const old_case_indent = case_indent; + case_indent = indent; + print_string("switch ("); print_expression(statement->expression); - print_string(") "); - print_statement(statement->body); + print_char(')'); + print_inner_statement(statement->body); + + case_indent = old_case_indent; } /** @@ -892,21 +869,14 @@ static void print_case_label(const case_label_statement_t *statement) } print_string(":\n"); } - ++indent; - if (statement->statement != NULL) { - if (statement->statement->base.kind == STATEMENT_CASE_LABEL) { - --indent; - } - print_indent(); - print_statement(statement->statement); - } + print_indented_statement(statement->statement); } static void print_typedef(const entity_t *entity) { print_string("typedef "); print_type_ext(entity->typedefe.type, entity->base.symbol, NULL); - print_string(";"); + print_char(';'); } /** @@ -935,7 +905,7 @@ static void print_declaration_statement( bool first = true; entity_t *entity = statement->declarations_begin; if (entity == NULL) { - print_string("/* empty declaration statement */\n"); + print_string("/* empty declaration statement */"); return; } @@ -947,29 +917,16 @@ static void print_declaration_statement( continue; if (!first) { + print_char('\n'); print_indent(); } else { first = false; } print_entity(entity); - print_string("\n"); } } -/** - * Print a while statement. - * - * @param statement the statement - */ -static void print_while_statement(const while_statement_t *statement) -{ - print_string("while ("); - print_expression(statement->condition); - print_string(") "); - print_statement(statement->body); -} - /** * Print a do-while statement. * @@ -977,12 +934,12 @@ static void print_while_statement(const while_statement_t *statement) */ static void print_do_while_statement(const do_while_statement_t *statement) { - print_string("do "); - print_statement(statement->body); - print_indent(); + print_string("do"); + print_inner_statement(statement->body); + print_after_inner_statement(statement->body); print_string("while ("); print_expression(statement->condition); - print_string(");\n"); + print_string(");"); } /** @@ -992,30 +949,35 @@ static void print_do_while_statement(const do_while_statement_t *statement) */ static void print_for_statement(const for_statement_t *statement) { - print_string("for ("); - if (statement->initialisation != NULL) { - print_expression(statement->initialisation); - print_string(";"); - } else { - entity_t const *entity = statement->scope.entities; - for (; entity != NULL; entity = entity->base.next) { - if (is_generated_entity(entity)) - continue; - /* FIXME display of multiple declarations is wrong */ - print_declaration(entity); + if (statement->initialisation || statement->scope.entities || !statement->condition || statement->step) { + print_string("for ("); + if (statement->initialisation != NULL) { + print_expression(statement->initialisation); + print_char(';'); + } else { + entity_t const *entity = statement->scope.entities; + for (; entity != NULL; entity = entity->base.next) { + if (is_generated_entity(entity)) + continue; + /* FIXME display of multiple declarations is wrong */ + print_declaration(entity); + } } - } - if (statement->condition != NULL) { - print_string(" "); + if (statement->condition != NULL) { + print_char(' '); + print_expression(statement->condition); + } + print_char(';'); + if (statement->step != NULL) { + print_char(' '); + print_expression(statement->step); + } + } else { + print_string("while ("); print_expression(statement->condition); } - print_string(";"); - if (statement->step != NULL) { - print_string(" "); - print_expression(statement->step); - } - print_string(") "); - print_statement(statement->body); + print_char(')'); + print_inner_statement(statement->body); } /** @@ -1023,20 +985,18 @@ static void print_for_statement(const for_statement_t *statement) * * @param arguments the arguments */ -static void print_asm_arguments(asm_argument_t *arguments) -{ - asm_argument_t *argument = arguments; - for (; argument != NULL; argument = argument->next) { - if (argument != arguments) - print_string(", "); - - if (argument->symbol) { - print_format("[%s] ", argument->symbol->string); - } - print_quoted_string(&argument->constraints, '"', 1); +static void print_asm_arguments(asm_argument_t const *const arguments) +{ + print_string(" :"); + separator_t sep = { " ", ", " }; + for (asm_argument_t const *i = arguments; i; i = i->next) { + print_string(sep_next(&sep)); + if (i->symbol) + print_format("[%s] ", i->symbol->string); + print_quoted_string(&i->constraints, '"'); print_string(" ("); - print_expression(argument->expression); - print_string(")"); + print_expression(i->expression); + print_char(')'); } } @@ -1045,50 +1005,51 @@ static void print_asm_arguments(asm_argument_t *arguments) * * @param clobbers the clobbers */ -static void print_asm_clobbers(asm_clobber_t *clobbers) +static void print_asm_clobbers(asm_clobber_t const *const clobbers) { - asm_clobber_t *clobber = clobbers; - for (; clobber != NULL; clobber = clobber->next) { - if (clobber != clobbers) - print_string(", "); + print_string(" :"); + separator_t sep = { " ", ", " }; + for (asm_clobber_t const *i = clobbers; i; i = i->next) { + print_string(sep_next(&sep)); + print_quoted_string(&i->clobber, '"'); + } +} - print_quoted_string(&clobber->clobber, '"', 1); +static void print_asm_labels(asm_label_t const *const labels) +{ + print_string(" :"); + separator_t sep = { " ", ", " }; + for (asm_label_t const *i = labels; i; i = i->next) { + print_string(sep_next(&sep)); + print_string(i->label->base.symbol->string); } } /** * Print an assembler statement. * - * @param statement the statement + * @param stmt the statement */ -static void print_asm_statement(const asm_statement_t *statement) +static void print_asm_statement(asm_statement_t const *const stmt) { - print_string("asm "); - if (statement->is_volatile) { - print_string("volatile "); - } - print_string("("); - print_quoted_string(&statement->asm_text, '"', 1); - if (statement->outputs == NULL && - statement->inputs == NULL && - statement->clobbers == NULL) - goto end_of_print_asm_statement; - - print_string(" : "); - print_asm_arguments(statement->outputs); - if (statement->inputs == NULL && statement->clobbers == NULL) - goto end_of_print_asm_statement; - - print_string(" : "); - print_asm_arguments(statement->inputs); - if (statement->clobbers == NULL) - goto end_of_print_asm_statement; + print_string("asm"); + if (stmt->is_volatile) print_string(" volatile"); + if (stmt->labels) print_string(" goto"); + print_char('('); + print_quoted_string(&stmt->asm_text, '"'); - print_string(" : "); - print_asm_clobbers(statement->clobbers); + unsigned const n = + stmt->labels ? 4 : + stmt->clobbers ? 3 : + stmt->inputs ? 2 : + stmt->outputs ? 1 : + 0; + if (n >= 1) print_asm_arguments(stmt->outputs); + if (n >= 2) print_asm_arguments(stmt->inputs); + if (n >= 3) print_asm_clobbers( stmt->clobbers); + if (n >= 4) print_asm_labels( stmt->labels); -end_of_print_asm_statement: - print_string(");\n"); + print_string(");"); } /** @@ -1098,17 +1059,17 @@ end_of_print_asm_statement: */ static void print_ms_try_statement(const ms_try_statement_t *statement) { - print_string("__try "); - print_statement(statement->try_statement); - print_indent(); + print_string("__try"); + print_inner_statement(statement->try_statement); + print_after_inner_statement(statement->try_statement); if (statement->except_expression != NULL) { print_string("__except("); print_expression(statement->except_expression); - print_string(") "); + print_char(')'); } else { - print_string("__finally "); + print_string("__finally"); } - print_statement(statement->final_statement); + print_inner_statement(statement->final_statement); } /** @@ -1119,7 +1080,7 @@ static void print_ms_try_statement(const ms_try_statement_t *statement) static void print_leave_statement(const leave_statement_t *statement) { (void)statement; - print_string("__leave;\n"); + print_string("__leave;"); } /** @@ -1127,66 +1088,28 @@ static void print_leave_statement(const leave_statement_t *statement) * * @param statement the statement */ -void print_statement(const statement_t *statement) -{ - switch (statement->kind) { - case STATEMENT_EMPTY: - print_string(";\n"); - break; - case STATEMENT_COMPOUND: - print_compound_statement(&statement->compound); - break; - case STATEMENT_RETURN: - print_return_statement(&statement->returns); - break; - case STATEMENT_EXPRESSION: - print_expression_statement(&statement->expression); - break; - case STATEMENT_LABEL: - print_label_statement(&statement->label); - break; - case STATEMENT_GOTO: - print_goto_statement(&statement->gotos); - break; - case STATEMENT_CONTINUE: - print_string("continue;\n"); - break; - case STATEMENT_BREAK: - print_string("break;\n"); - break; - case STATEMENT_IF: - print_if_statement(&statement->ifs); - break; - case STATEMENT_SWITCH: - print_switch_statement(&statement->switchs); - break; - case STATEMENT_CASE_LABEL: - print_case_label(&statement->case_label); - break; - case STATEMENT_DECLARATION: - print_declaration_statement(&statement->declaration); - break; - case STATEMENT_WHILE: - print_while_statement(&statement->whiles); - break; - case STATEMENT_DO_WHILE: - print_do_while_statement(&statement->do_while); - break; - case STATEMENT_FOR: - print_for_statement(&statement->fors); - break; - case STATEMENT_ASM: - print_asm_statement(&statement->asms); - break; - case STATEMENT_MS_TRY: - print_ms_try_statement(&statement->ms_try); - break; - case STATEMENT_LEAVE: - print_leave_statement(&statement->leave); - break; - case STATEMENT_INVALID: - print_string("$invalid statement$\n"); - break; +void print_statement(statement_t const *const stmt) +{ + switch (stmt->kind) { + case STATEMENT_ASM: print_asm_statement( &stmt->asms); break; + case STATEMENT_BREAK: print_string("break;"); break; + case STATEMENT_CASE_LABEL: print_case_label( &stmt->case_label); break; + case STATEMENT_COMPOUND: print_compound_statement( &stmt->compound); break; + case STATEMENT_COMPUTED_GOTO: print_computed_goto_statement(&stmt->computed_goto); break; + case STATEMENT_CONTINUE: print_string("continue;"); break; + case STATEMENT_DECLARATION: print_declaration_statement( &stmt->declaration); break; + case STATEMENT_DO_WHILE: print_do_while_statement( &stmt->do_while); break; + case STATEMENT_EMPTY: print_char(';'); break; + case STATEMENT_ERROR: print_string("$error statement$"); break; + case STATEMENT_EXPRESSION: print_expression_statement( &stmt->expression); break; + case STATEMENT_FOR: print_for_statement( &stmt->fors); break; + case STATEMENT_GOTO: print_goto_statement( &stmt->gotos); break; + case STATEMENT_IF: print_if_statement( &stmt->ifs); break; + case STATEMENT_LABEL: print_label_statement( &stmt->label); break; + case STATEMENT_LEAVE: print_leave_statement( &stmt->leave); break; + case STATEMENT_MS_TRY: print_ms_try_statement( &stmt->ms_try); break; + case STATEMENT_RETURN: print_return_statement( &stmt->returns); break; + case STATEMENT_SWITCH: print_switch_statement( &stmt->switchs); break; } } @@ -1221,13 +1144,12 @@ void print_initializer(const initializer_t *initializer) } switch (initializer->kind) { - case INITIALIZER_VALUE: { - const initializer_value_t *value = &initializer->value; - print_assignment_expression(value->value); + case INITIALIZER_STRING: + case INITIALIZER_VALUE: + print_assignment_expression(initializer->value.value); return; - } + case INITIALIZER_LIST: { - assert(initializer->kind == INITIALIZER_LIST); print_string("{ "); const initializer_list_t *list = &initializer->list; @@ -1242,12 +1164,7 @@ void print_initializer(const initializer_t *initializer) print_string(" }"); return; } - case INITIALIZER_STRING: - print_quoted_string(&initializer->string.string, '"', 1); - return; - case INITIALIZER_WIDE_STRING: - print_quoted_string(&initializer->string.string, '"', 1); - return; + case INITIALIZER_DESIGNATOR: print_designator(initializer->designator.designator); print_string(" = "); @@ -1268,85 +1185,75 @@ static void print_ms_modifiers(const declaration_t *declaration) decl_modifiers_t modifiers = declaration->modifiers; - bool ds_shown = false; - const char *next = "("; + separator_t sep = { "__declspec(", ", " }; if (declaration->base.kind == ENTITY_VARIABLE) { variable_t *variable = (variable_t*)declaration; if (variable->alignment != 0 || variable->get_property_sym != NULL || variable->put_property_sym != NULL) { - if (!ds_shown) { - print_string("__declspec"); - ds_shown = true; - } - if (variable->alignment != 0) { - print_string(next); next = ", "; print_format("align(%u)", variable->alignment); + print_format("%salign(%u)", sep_next(&sep), variable->alignment); } if (variable->get_property_sym != NULL || variable->put_property_sym != NULL) { char *comma = ""; - print_string(next); next = ", "; print_string("property("); + print_format("%sproperty(", sep_next(&sep)); if (variable->get_property_sym != NULL) { print_format("get=%s", variable->get_property_sym->string); comma = ", "; } if (variable->put_property_sym != NULL) print_format("%sput=%s", comma, variable->put_property_sym->string); - print_string(")"); + print_char(')'); } } } /* DM_FORCEINLINE handled outside. */ if ((modifiers & ~DM_FORCEINLINE) != 0) { - if (!ds_shown) { - print_string("__declspec"); - ds_shown = true; - } if (modifiers & DM_DLLIMPORT) { - print_string(next); next = ", "; print_string("dllimport"); + print_format("%sdllimport", sep_next(&sep)); } if (modifiers & DM_DLLEXPORT) { - print_string(next); next = ", "; print_string("dllexport"); + print_format("%sdllexport", sep_next(&sep)); } if (modifiers & DM_THREAD) { - print_string(next); next = ", "; print_string("thread"); + print_format("%sthread", sep_next(&sep)); } if (modifiers & DM_NAKED) { - print_string(next); next = ", "; print_string("naked"); + print_format("%snaked", sep_next(&sep)); } if (modifiers & DM_THREAD) { - print_string(next); next = ", "; print_string("thread"); + print_format("%sthread", sep_next(&sep)); } if (modifiers & DM_SELECTANY) { - print_string(next); next = ", "; print_string("selectany"); + print_format("%sselectany", sep_next(&sep)); } if (modifiers & DM_NOTHROW) { - print_string(next); next = ", "; print_string("nothrow"); + print_format("%snothrow", sep_next(&sep)); } if (modifiers & DM_NORETURN) { - print_string(next); next = ", "; print_string("noreturn"); + print_format("%snoreturn", sep_next(&sep)); } if (modifiers & DM_NOINLINE) { - print_string(next); next = ", "; print_string("noinline"); + print_format("%snoinline", sep_next(&sep)); } if (modifiers & DM_DEPRECATED) { - print_string(next); next = ", "; print_string("deprecated"); + print_format("%sdeprecated", sep_next(&sep)); if (declaration->deprecated_string != NULL) print_format("(\"%s\")", declaration->deprecated_string); } if (modifiers & DM_RESTRICT) { - print_string(next); next = ", "; print_string("restrict"); + print_format("%srestrict", sep_next(&sep)); } if (modifiers & DM_NOALIAS) { - print_string(next); next = ", "; print_string("noalias"); + print_format("%snoalias", sep_next(&sep)); } } - if (ds_shown) + if (!sep_at_first(&sep)) print_string(") "); } #endif @@ -1357,7 +1264,7 @@ static void print_scope(const scope_t *scope) for ( ; entity != NULL; entity = entity->base.next) { print_indent(); print_entity(entity); - print_string("\n"); + print_char('\n'); } } @@ -1366,7 +1273,7 @@ static void print_namespace(const namespace_t *namespace) print_string("namespace "); if (namespace->base.symbol != NULL) { print_string(namespace->base.symbol->string); - print_string(" "); + print_char(' '); } print_string("{\n"); @@ -1406,17 +1313,17 @@ void print_declaration(const entity_t *entity) print_type_ext(entity->declaration.type, entity->base.symbol, &entity->function.parameters); - if (entity->function.statement != NULL) { - print_string("\n"); - print_indent(); - print_statement(entity->function.statement); + if (entity->function.body != NULL) { + print_char('\n'); + print_indented_statement(entity->function.body); + print_char('\n'); return; } break; case ENTITY_VARIABLE: if (entity->variable.thread_local) - print_string("__thread "); + print_string(c_mode & _C11 ? "_Thread_local " : "__thread "); print_type_ext(declaration->type, declaration->base.symbol, NULL); if (entity->variable.initializer != NULL) { print_string(" = "); @@ -1435,7 +1342,7 @@ void print_declaration(const entity_t *entity) print_type_ext(declaration->type, declaration->base.symbol, NULL); break; } - print_string(";"); + print_char(';'); } /** @@ -1482,17 +1389,17 @@ void print_entity(const entity_t *entity) print_compound: print_string(entity->base.symbol->string); if (entity->compound.complete) { - print_string(" "); + print_char(' '); print_compound_definition(&entity->compound); } - print_string(";"); + print_char(';'); return; case ENTITY_ENUM: print_string("enum "); print_string(entity->base.symbol->string); - print_string(" "); + print_char(' '); print_enum_definition(&entity->enume); - print_string(";"); + print_char(';'); return; case ENTITY_NAMESPACE: print_namespace(&entity->namespacee); @@ -1500,13 +1407,11 @@ print_compound: case ENTITY_LOCAL_LABEL: print_string("__label__ "); print_string(entity->base.symbol->string); - print_string(";"); + print_char(';'); return; case ENTITY_LABEL: case ENTITY_ENUM_VALUE: panic("print_entity used on unexpected entity type"); - case ENTITY_INVALID: - break; } panic("Invalid entity type encountered"); } @@ -1530,7 +1435,7 @@ void print_ast(const translation_unit_t *unit) print_indent(); print_entity(entity); - print_string("\n"); + print_char('\n'); } } @@ -1538,21 +1443,18 @@ expression_classification_t is_constant_initializer(const initializer_t *initial { switch (initializer->kind) { case INITIALIZER_STRING: - case INITIALIZER_WIDE_STRING: case INITIALIZER_DESIGNATOR: return EXPR_CLASS_CONSTANT; case INITIALIZER_VALUE: - return is_constant_expression(initializer->value.value); + return is_linker_constant(initializer->value.value); case INITIALIZER_LIST: { expression_classification_t all = EXPR_CLASS_CONSTANT; for (size_t i = 0; i < initializer->list.len; ++i) { initializer_t *sub_initializer = initializer->list.initializers[i]; expression_classification_t const cur = is_constant_initializer(sub_initializer); - if (all > cur) { - all = cur; - } + all = MIN(all, cur); } return all; } @@ -1574,6 +1476,14 @@ static expression_classification_t is_object_with_linker_constant_address( case EXPR_UNARY_DEREFERENCE: return is_linker_constant(expression->unary.value); + case EXPR_COMPOUND_LITERAL: { + const compound_literal_expression_t *literal + = &expression->compound_literal; + return literal->global_scope || + ((literal->type->base.qualifiers & TYPE_QUALIFIER_CONST) + && is_constant_initializer(literal->initializer)); + } + case EXPR_SELECT: { type_t *base_type = skip_typeref(expression->select.compound->base.type); if (is_type_pointer(base_type)) { @@ -1587,7 +1497,7 @@ static expression_classification_t is_object_with_linker_constant_address( case EXPR_ARRAY_ACCESS: { expression_classification_t const ref = is_linker_constant(expression->array_access.array_ref); expression_classification_t const idx = is_constant_expression(expression->array_access.index); - return ref < idx ? ref : idx; + return MIN(ref, idx); } case EXPR_REFERENCE: { @@ -1614,8 +1524,6 @@ static expression_classification_t is_object_with_linker_constant_address( case EXPR_ERROR: return EXPR_CLASS_ERROR; - case EXPR_INVALID: - panic("invalid expression found"); default: return EXPR_CLASS_VARIABLE; @@ -1626,11 +1534,13 @@ expression_classification_t is_linker_constant(const expression_t *expression) { switch (expression->kind) { case EXPR_STRING_LITERAL: - case EXPR_WIDE_STRING_LITERAL: case EXPR_FUNCNAME: case EXPR_LABEL_ADDRESS: return EXPR_CLASS_CONSTANT; + case EXPR_COMPOUND_LITERAL: + return is_constant_initializer(expression->compound_literal.initializer); + case EXPR_UNARY_TAKE_ADDRESS: return is_object_with_linker_constant_address(expression->unary.value); @@ -1651,11 +1561,9 @@ expression_classification_t is_linker_constant(const expression_t *expression) !(get_atomic_type_flags(dest->atomic.akind) & ATOMIC_TYPE_FLAG_INTEGER) || get_atomic_type_size(dest->atomic.akind) < get_type_size(type_void_ptr) )) - return EXPR_CLASS_VARIABLE; + return is_constant_expression(expression); - expression_classification_t const expr = is_constant_expression(expression->unary.value); - expression_classification_t const addr = is_linker_constant(expression->unary.value); - return expr > addr ? expr : addr; + return is_linker_constant(expression->unary.value); } case EXPR_BINARY_ADD: @@ -1668,15 +1576,15 @@ expression_classification_t is_linker_constant(const expression_t *expression) if (is_type_pointer(ltype)) { expression_classification_t const l = is_linker_constant(left); expression_classification_t const r = is_constant_expression(right); - return l < r ? l : r; + return MIN(l, r); } else if (is_type_pointer(rtype)) { expression_classification_t const l = is_constant_expression(left); expression_classification_t const r = is_linker_constant(right); - return l < r ? l : r; + return MIN(l, r); } else if (!is_type_valid(ltype) || !is_type_valid(rtype)) { return EXPR_CLASS_ERROR; } else { - return EXPR_CLASS_VARIABLE; + return is_constant_expression(expression); } } @@ -1702,15 +1610,13 @@ expression_classification_t is_linker_constant(const expression_t *expression) skip_typeref(revert_automatic_type_conversion(expression)); if (!is_type_array(type)) return EXPR_CLASS_VARIABLE; - expression_classification_t const ref = is_linker_constant(expression->array_access.array_ref); - expression_classification_t const idx = is_constant_expression(expression->array_access.index); - return ref < idx ? ref : idx; + return is_linker_constant(expression->array_access.array_ref); } case EXPR_CONDITIONAL: { expression_t *const c = expression->conditional.condition; expression_classification_t const cclass = is_constant_expression(c); - if (cclass != EXPR_CLASS_CONSTANT) + if (cclass < EXPR_CLASS_CONSTANT) return cclass; if (fold_constant_to_bool(c)) { @@ -1740,13 +1646,8 @@ expression_classification_t is_linker_constant(const expression_t *expression) return EXPR_CLASS_VARIABLE; } - case EXPR_ERROR: - return EXPR_CLASS_ERROR; - case EXPR_INVALID: - panic("invalid expression found"); - default: - return EXPR_CLASS_VARIABLE; + return is_constant_expression(expression); } } @@ -1764,15 +1665,8 @@ static expression_classification_t is_builtin_const_call(const expression_t *exp return EXPR_CLASS_VARIABLE; switch (ref->entity->function.btk) { - case bk_gnu_builtin_huge_val: - case bk_gnu_builtin_huge_valf: - case bk_gnu_builtin_huge_vall: - case bk_gnu_builtin_inf: - case bk_gnu_builtin_inff: - case bk_gnu_builtin_infl: - case bk_gnu_builtin_nan: - case bk_gnu_builtin_nanf: - case bk_gnu_builtin_nanl: + case BUILTIN_INF: + case BUILTIN_NAN: return EXPR_CLASS_CONSTANT; default: return EXPR_CLASS_VARIABLE; @@ -1812,11 +1706,11 @@ static expression_classification_t is_object_with_constant_address(const express array_access_expression_t const* const array_access = &expression->array_access; expression_classification_t const idx_class = is_constant_expression(array_access->index); - if (idx_class != EXPR_CLASS_CONSTANT) + if (idx_class < EXPR_CLASS_CONSTANT) return idx_class; expression_classification_t const ref_addr = is_object_with_constant_address(array_access->array_ref); expression_classification_t const ref_ptr = is_constant_pointer(array_access->array_ref); - return ref_addr > ref_ptr ? ref_addr : ref_ptr; + return MAX(ref_addr, ref_ptr); } case EXPR_UNARY_DEREFERENCE: @@ -1824,8 +1718,6 @@ static expression_classification_t is_object_with_constant_address(const express case EXPR_ERROR: return EXPR_CLASS_ERROR; - case EXPR_INVALID: - panic("invalid expression found"); default: return EXPR_CLASS_VARIABLE; @@ -1835,24 +1727,52 @@ static expression_classification_t is_object_with_constant_address(const express expression_classification_t is_constant_expression(const expression_t *expression) { switch (expression->kind) { - EXPR_LITERAL_CASES + case EXPR_LITERAL_CHARACTER: + case EXPR_BUILTIN_TYPES_COMPATIBLE_P: + case EXPR_ENUM_CONSTANT: + case EXPR_LITERAL_BOOLEAN: + case EXPR_LITERAL_MS_NOOP: + return EXPR_CLASS_INTEGER_CONSTANT; + + { + type_t *type; + case EXPR_ALIGNOF: + type = skip_typeref(expression->typeprop.type); + goto check_type; + case EXPR_CLASSIFY_TYPE: + type = skip_typeref(expression->classify_type.type_expression->base.type); + goto check_type; + + case EXPR_LITERAL_INTEGER: + type = skip_typeref(expression->base.type); + goto check_type; + case EXPR_OFFSETOF: - case EXPR_ALIGNOF: - case EXPR_BUILTIN_CONSTANT_P: - case EXPR_BUILTIN_TYPES_COMPATIBLE_P: - case EXPR_REFERENCE_ENUM_VALUE: - return EXPR_CLASS_CONSTANT; + type = skip_typeref(expression->offsetofe.type); + goto check_type; - case EXPR_SIZEOF: { - type_t *const type = skip_typeref(expression->typeprop.type); - return - !is_type_array(type) || !type->array.is_vla ? EXPR_CLASS_CONSTANT : - EXPR_CLASS_VARIABLE; + case EXPR_SIZEOF: + type = skip_typeref(expression->typeprop.type); + if (is_type_array(type) && type->array.is_vla) + return EXPR_CLASS_VARIABLE; + goto check_type; + +check_type: + return is_type_valid(type) ? EXPR_CLASS_INTEGER_CONSTANT : EXPR_CLASS_ERROR; + } + + case EXPR_LITERAL_FLOATINGPOINT: { + type_t *const type = skip_typeref(expression->base.type); + return is_type_valid(type) ? EXPR_CLASS_CONSTANT : EXPR_CLASS_ERROR; + } + + case EXPR_BUILTIN_CONSTANT_P: { + expression_classification_t const c = is_constant_expression(expression->builtin_constant.value); + return c != EXPR_CLASS_ERROR ? EXPR_CLASS_INTEGER_CONSTANT : EXPR_CLASS_ERROR; } case EXPR_STRING_LITERAL: - case EXPR_WIDE_STRING_LITERAL: case EXPR_FUNCNAME: case EXPR_LABEL_ADDRESS: case EXPR_SELECT: @@ -1897,12 +1817,28 @@ expression_classification_t is_constant_expression(const expression_t *expressio case EXPR_UNARY_NEGATE: case EXPR_UNARY_PLUS: - case EXPR_UNARY_BITWISE_NEGATE: + case EXPR_UNARY_COMPLEMENT: case EXPR_UNARY_NOT: return is_constant_expression(expression->unary.value); + case EXPR_UNARY_IMAG: + case EXPR_UNARY_REAL: { + type_t *type = skip_typeref(expression->base.type); + if (!is_type_valid(type)) + return EXPR_CLASS_ERROR; + return is_constant_expression(expression->unary.value); + } + case EXPR_UNARY_CAST: { type_t *const type = skip_typeref(expression->base.type); + if (is_type_integer(type)) { + expression_t *const val = expression->unary.value; + if (is_type_arithmetic(skip_typeref(val->base.type))) { + return val->kind == EXPR_LITERAL_FLOATINGPOINT + ? EXPR_CLASS_INTEGER_CONSTANT + : is_constant_expression(val); + } + } if (is_type_scalar(type)) return is_constant_expression(expression->unary.value); if (!is_type_valid(type)) @@ -1934,52 +1870,58 @@ expression_classification_t is_constant_expression(const expression_t *expressio case EXPR_BINARY_ISUNORDERED: { expression_classification_t const l = is_constant_expression(expression->binary.left); expression_classification_t const r = is_constant_expression(expression->binary.right); - return l < r ? l : r; + return MIN(l, r); } case EXPR_BINARY_LOGICAL_AND: { - expression_t const *const left = expression->binary.left; - expression_classification_t const lclass = is_constant_expression(left); - if (lclass != EXPR_CLASS_CONSTANT) - return lclass; + expression_t const *const left = expression->binary.left; + expression_classification_t const lcls = is_constant_expression(left); + if (lcls < EXPR_CLASS_CONSTANT) + return lcls; + expression_classification_t const rcls = is_constant_expression(expression->binary.right); + if (lcls == EXPR_CLASS_INTEGER_CONSTANT && rcls == EXPR_CLASS_INTEGER_CONSTANT) + return EXPR_CLASS_INTEGER_CONSTANT; if (!fold_constant_to_bool(left)) return EXPR_CLASS_CONSTANT; - return is_constant_expression(expression->binary.right); + return MIN(rcls, EXPR_CLASS_CONSTANT); } case EXPR_BINARY_LOGICAL_OR: { - expression_t const *const left = expression->binary.left; - expression_classification_t const lclass = is_constant_expression(left); - if (lclass != EXPR_CLASS_CONSTANT) - return lclass; + expression_t const *const left = expression->binary.left; + expression_classification_t const lcls = is_constant_expression(left); + if (lcls < EXPR_CLASS_CONSTANT) + return lcls; + expression_classification_t const rcls = is_constant_expression(expression->binary.right); + if (lcls == EXPR_CLASS_INTEGER_CONSTANT && rcls == EXPR_CLASS_INTEGER_CONSTANT) + return EXPR_CLASS_INTEGER_CONSTANT; if (fold_constant_to_bool(left)) return EXPR_CLASS_CONSTANT; - return is_constant_expression(expression->binary.right); + return MIN(rcls, EXPR_CLASS_CONSTANT); } case EXPR_COMPOUND_LITERAL: return is_constant_initializer(expression->compound_literal.initializer); case EXPR_CONDITIONAL: { - expression_t *const condition = expression->conditional.condition; - expression_classification_t const cclass = is_constant_expression(condition); - if (cclass != EXPR_CLASS_CONSTANT) - return cclass; - - if (fold_constant_to_bool(condition)) { - expression_t const *const t = expression->conditional.true_expression; - return t == NULL ? EXPR_CLASS_CONSTANT : is_constant_expression(t); - } else { - return is_constant_expression(expression->conditional.false_expression); - } + expression_t *const cond = expression->conditional.condition; + expression_classification_t const ccls = is_constant_expression(cond); + if (ccls < EXPR_CLASS_CONSTANT) + return ccls; + expression_t const *const t = expression->conditional.true_expression; + expression_classification_t const tcls = t == NULL ? ccls : is_constant_expression(t); + expression_classification_t const fcls = is_constant_expression(expression->conditional.false_expression); + if (ccls == EXPR_CLASS_INTEGER_CONSTANT && + tcls == EXPR_CLASS_INTEGER_CONSTANT && + fcls == EXPR_CLASS_INTEGER_CONSTANT) + return EXPR_CLASS_INTEGER_CONSTANT; + expression_classification_t const cls = fold_constant_to_bool(cond) ? tcls : fcls; + return MIN(cls, EXPR_CLASS_CONSTANT); } case EXPR_ERROR: return EXPR_CLASS_ERROR; - case EXPR_INVALID: - break; } - panic("invalid expression found (is constant expression)"); + panic("invalid expression"); } void init_ast(void)