+/*
+ * This file is part of cparser.
+ * Copyright (C) 2012 Matthias Braun <matze@braunis.de>
+ */
#ifndef AST_T_H
#define AST_T_H
+#include <libfirm/firm_types.h>
+#include <assert.h>
+
#include "ast.h"
#include "symbol.h"
-#include "token_t.h"
#include "type.h"
+#include "entity_t.h"
#include "adt/obst.h"
+/** The AST obstack contains all data that must stay in the AST. */
extern struct obstack ast_obstack;
-typedef enum {
- EXPR_INVALID = 0,
+/**
+ * Operator precedence classes
+ */
+typedef enum precedence_t {
+ PREC_BOTTOM,
+ PREC_EXPRESSION, /* , left to right */
+ PREC_ASSIGNMENT, /* = += -= *= /= %= <<= >>= &= ^= |= right to left */
+ PREC_CONDITIONAL, /* ?: right to left */
+ PREC_LOGICAL_OR, /* || left to right */
+ PREC_LOGICAL_AND, /* && left to right */
+ PREC_OR, /* | left to right */
+ PREC_XOR, /* ^ left to right */
+ PREC_AND, /* & left to right */
+ PREC_EQUALITY, /* == != left to right */
+ PREC_RELATIONAL, /* < <= > >= left to right */
+ PREC_SHIFT, /* << >> left to right */
+ PREC_ADDITIVE, /* + - left to right */
+ PREC_MULTIPLICATIVE, /* * / % left to right */
+ PREC_CAST, /* (type) right to left */
+ PREC_UNARY, /* ! ~ ++ -- + - * & sizeof right to left */
+ PREC_POSTFIX, /* () [] -> . left to right */
+ PREC_PRIMARY,
+ PREC_TOP
+} precedence_t;
+
+/**
+ * Expression kinds.
+ */
+typedef enum expression_kind_t {
+ EXPR_ERROR = 1,
EXPR_REFERENCE,
- EXPR_CONST,
+ EXPR_ENUM_CONSTANT,
+ EXPR_LITERAL_BOOLEAN,
+ EXPR_LITERAL_INTEGER,
+ EXPR_LITERAL_FLOATINGPOINT,
+ EXPR_LITERAL_CHARACTER,
+ EXPR_LITERAL_MS_NOOP, /**< MS __noop extension */
EXPR_STRING_LITERAL,
+ EXPR_COMPOUND_LITERAL,
EXPR_CALL,
- EXPR_UNARY,
- EXPR_BINARY,
+ EXPR_CONDITIONAL,
EXPR_SELECT,
EXPR_ARRAY_ACCESS,
EXPR_SIZEOF,
+ EXPR_CLASSIFY_TYPE,
+ EXPR_ALIGNOF,
- EXPR_FUNCTION,
- EXPR_PRETTY_FUNCTION,
- EXPR_BUILTIN_SYMBOL,
+ EXPR_FUNCNAME,
+ EXPR_BUILTIN_CONSTANT_P,
+ EXPR_BUILTIN_TYPES_COMPATIBLE_P,
EXPR_OFFSETOF,
- EXPR_STATEMENT
-} expresion_type_t;
+ EXPR_VA_START,
+ EXPR_VA_ARG,
+ EXPR_VA_COPY,
+ EXPR_STATEMENT,
+ EXPR_LABEL_ADDRESS, /**< GCC extension &&label operator */
+
+ EXPR_UNARY_FIRST,
+ EXPR_UNARY_NEGATE = EXPR_UNARY_FIRST,
+ EXPR_UNARY_PLUS,
+ EXPR_UNARY_COMPLEMENT,
+ EXPR_UNARY_NOT,
+ EXPR_UNARY_DEREFERENCE,
+ EXPR_UNARY_TAKE_ADDRESS,
+ EXPR_UNARY_POSTFIX_INCREMENT,
+ EXPR_UNARY_POSTFIX_DECREMENT,
+ EXPR_UNARY_PREFIX_INCREMENT,
+ EXPR_UNARY_PREFIX_DECREMENT,
+ EXPR_UNARY_CAST,
+ EXPR_UNARY_ASSUME, /**< MS __assume() */
+ EXPR_UNARY_DELETE,
+ EXPR_UNARY_DELETE_ARRAY,
+ EXPR_UNARY_THROW,
+ EXPR_UNARY_REAL,
+ EXPR_UNARY_IMAG,
+ EXPR_UNARY_LAST = EXPR_UNARY_IMAG,
+
+ EXPR_BINARY_FIRST,
+ EXPR_BINARY_ADD = EXPR_BINARY_FIRST,
+ EXPR_BINARY_SUB,
+ EXPR_BINARY_MUL,
+ EXPR_BINARY_DIV,
+ EXPR_BINARY_MOD,
+ EXPR_BINARY_EQUAL,
+ EXPR_BINARY_NOTEQUAL,
+ EXPR_BINARY_LESS,
+ EXPR_BINARY_LESSEQUAL,
+ EXPR_BINARY_GREATER,
+ EXPR_BINARY_GREATEREQUAL,
+ EXPR_BINARY_BITWISE_AND,
+ EXPR_BINARY_BITWISE_OR,
+ EXPR_BINARY_BITWISE_XOR,
+ EXPR_BINARY_LOGICAL_AND,
+ EXPR_BINARY_LOGICAL_OR,
+ EXPR_BINARY_SHIFTLEFT,
+ EXPR_BINARY_SHIFTRIGHT,
+ EXPR_BINARY_ASSIGN,
+ EXPR_BINARY_MUL_ASSIGN,
+ EXPR_BINARY_DIV_ASSIGN,
+ EXPR_BINARY_MOD_ASSIGN,
+ EXPR_BINARY_ADD_ASSIGN,
+ EXPR_BINARY_SUB_ASSIGN,
+ EXPR_BINARY_SHIFTLEFT_ASSIGN,
+ EXPR_BINARY_SHIFTRIGHT_ASSIGN,
+ EXPR_BINARY_BITWISE_AND_ASSIGN,
+ EXPR_BINARY_BITWISE_XOR_ASSIGN,
+ EXPR_BINARY_BITWISE_OR_ASSIGN,
+ EXPR_BINARY_COMMA,
+
+ EXPR_BINARY_ISGREATER,
+ EXPR_BINARY_ISGREATEREQUAL,
+ EXPR_BINARY_ISLESS,
+ EXPR_BINARY_ISLESSEQUAL,
+ EXPR_BINARY_ISLESSGREATER,
+ EXPR_BINARY_ISUNORDERED,
+ EXPR_BINARY_LAST = EXPR_BINARY_ISUNORDERED,
+} expression_kind_t;
+
+typedef enum funcname_kind_t {
+ FUNCNAME_FUNCTION, /**< C99 __func__, older __FUNCTION__ */
+ FUNCNAME_PRETTY_FUNCTION, /**< GNUC __PRETTY_FUNCTION__ */
+ FUNCNAME_FUNCSIG, /**< MS __FUNCSIG__ */
+ FUNCNAME_FUNCDNAME /**< MS __FUNCDNAME__ */
+} funcname_kind_t;
+
+/* convenience macros */
+#define EXPR_BINARY_CASES \
+ EXPR_BINARY_ADD: \
+ case EXPR_BINARY_SUB: \
+ case EXPR_BINARY_MUL: \
+ case EXPR_BINARY_DIV: \
+ case EXPR_BINARY_MOD: \
+ case EXPR_BINARY_EQUAL: \
+ case EXPR_BINARY_NOTEQUAL: \
+ case EXPR_BINARY_LESS: \
+ case EXPR_BINARY_LESSEQUAL: \
+ case EXPR_BINARY_GREATER: \
+ case EXPR_BINARY_GREATEREQUAL: \
+ case EXPR_BINARY_BITWISE_AND: \
+ case EXPR_BINARY_BITWISE_OR: \
+ case EXPR_BINARY_BITWISE_XOR: \
+ case EXPR_BINARY_LOGICAL_AND: \
+ case EXPR_BINARY_LOGICAL_OR: \
+ case EXPR_BINARY_SHIFTLEFT: \
+ case EXPR_BINARY_SHIFTRIGHT: \
+ case EXPR_BINARY_ASSIGN: \
+ case EXPR_BINARY_MUL_ASSIGN: \
+ case EXPR_BINARY_DIV_ASSIGN: \
+ case EXPR_BINARY_MOD_ASSIGN: \
+ case EXPR_BINARY_ADD_ASSIGN: \
+ case EXPR_BINARY_SUB_ASSIGN: \
+ case EXPR_BINARY_SHIFTLEFT_ASSIGN: \
+ case EXPR_BINARY_SHIFTRIGHT_ASSIGN: \
+ case EXPR_BINARY_BITWISE_AND_ASSIGN: \
+ case EXPR_BINARY_BITWISE_XOR_ASSIGN: \
+ case EXPR_BINARY_BITWISE_OR_ASSIGN: \
+ case EXPR_BINARY_COMMA: \
+ case EXPR_BINARY_ISGREATER: \
+ case EXPR_BINARY_ISGREATEREQUAL: \
+ case EXPR_BINARY_ISLESS: \
+ case EXPR_BINARY_ISLESSEQUAL: \
+ case EXPR_BINARY_ISLESSGREATER: \
+ case EXPR_BINARY_ISUNORDERED
+
+/**
+ * unary expression with mandatory operand
+ */
+#define EXPR_UNARY_CASES_MANDATORY \
+ EXPR_UNARY_NEGATE: \
+ case EXPR_UNARY_PLUS: \
+ case EXPR_UNARY_COMPLEMENT: \
+ case EXPR_UNARY_NOT: \
+ case EXPR_UNARY_DEREFERENCE: \
+ case EXPR_UNARY_TAKE_ADDRESS: \
+ case EXPR_UNARY_POSTFIX_INCREMENT: \
+ case EXPR_UNARY_POSTFIX_DECREMENT: \
+ case EXPR_UNARY_PREFIX_INCREMENT: \
+ case EXPR_UNARY_PREFIX_DECREMENT: \
+ case EXPR_UNARY_CAST: \
+ case EXPR_UNARY_ASSUME: \
+ case EXPR_UNARY_DELETE: \
+ case EXPR_UNARY_DELETE_ARRAY: \
+ case EXPR_UNARY_IMAG: \
+ case EXPR_UNARY_REAL
+
+/**
+ * unary expression with optional operand
+ */
+#define EXPR_UNARY_CASES_OPTIONAL \
+ EXPR_UNARY_THROW
+
+#define EXPR_UNARY_CASES \
+ EXPR_UNARY_CASES_MANDATORY: \
+ case EXPR_UNARY_CASES_OPTIONAL
+
+#define EXPR_LITERAL_CASES \
+ EXPR_LITERAL_BOOLEAN: \
+ case EXPR_LITERAL_INTEGER: \
+ case EXPR_LITERAL_FLOATINGPOINT: \
+ case EXPR_LITERAL_MS_NOOP
+
+/**
+ * The base class of every expression.
+ */
+struct expression_base_t {
+ expression_kind_t kind; /**< The expression kind. */
+ type_t *type; /**< The type of the expression. */
+ position_t pos; /**< The source position of this expression. */
+ bool parenthesized : 1;
+#ifndef NDEBUG
+ bool transformed : 1; /**< Set if this expression was transformed. */
+#endif
+ bool implicit : 1; /**< compiler generated expression.
+ Examples: select into anonymous structs,
+ implicit casts */
+};
+
+/**
+ * integer, float and boolean constants
+ */
+struct literal_expression_t {
+ expression_base_t base;
+ string_t value;
+ char const *suffix; /**< Start of the suffix in value. */
+
+ /* ast2firm data */
+ ir_tarval *target_value;
+};
-struct context_t {
- declaration_t *declarations;
- compound_type_t *structs;
- compound_type_t *unions;
- enum_type_t *enums;
+/**
+ * string and character literals
+ */
+struct string_literal_expression_t {
+ expression_base_t base;
+ string_t value;
};
-struct expression_t {
- expresion_type_t type;
- type_t *datatype;
- source_position_t source_position;
+struct funcname_expression_t {
+ expression_base_t base;
+ funcname_kind_t kind;
};
-struct const_t {
- expression_t expression;
- int value;
+struct compound_literal_expression_t {
+ expression_base_t base;
+ type_t *type;
+ initializer_t *initializer;
+ bool global_scope;
};
-struct string_literal_t {
- expression_t expression;
- const char *value;
+struct builtin_constant_expression_t {
+ expression_base_t base;
+ expression_t *value;
};
-struct builtin_symbol_expression_t {
- symbol_t *symbol;
- expression_t expression;
+struct builtin_types_compatible_expression_t {
+ expression_base_t base;
+ type_t *left;
+ type_t *right;
};
struct reference_expression_t {
- expression_t expression;
- symbol_t *symbol;
- declaration_t *declaration;
+ expression_base_t base;
+ entity_t *entity;
};
+/**
+ * An argument of a call.
+ */
struct call_argument_t {
- expression_t *expression;
- call_argument_t *next;
+ expression_t *expression; /**< The expression which value is transmitted. */
+ call_argument_t *next; /**< Links to the next argument of this call. */
};
+
struct call_expression_t {
- expression_t expression;
- expression_t *method;
- call_argument_t *arguments;
-};
-
-typedef enum {
- UNEXPR_INVALID = 0,
- UNEXPR_NEGATE,
- UNEXPR_PLUS,
- UNEXPR_BITWISE_NEGATE,
- UNEXPR_NOT,
- UNEXPR_DEREFERENCE,
- UNEXPR_TAKE_ADDRESS,
- UNEXPR_POSTFIX_INCREMENT,
- UNEXPR_POSTFIX_DECREMENT,
- UNEXPR_PREFIX_INCREMENT,
- UNEXPR_PREFIX_DECREMENT,
- UNEXPR_CAST
-} unary_expression_type_t;
+ expression_base_t base;
+ expression_t *function; /**< The address of the function to call. */
+ call_argument_t *arguments; /**< List of arguments of this call. */
+};
+
struct unary_expression_t {
- expression_t expression;
- unary_expression_type_t type;
- expression_t *value;
-};
-
-typedef enum {
- BINEXPR_INVALID = 0,
- BINEXPR_ADD,
- BINEXPR_SUB,
- BINEXPR_MUL,
- BINEXPR_DIV,
- BINEXPR_MOD,
- BINEXPR_EQUAL,
- BINEXPR_NOTEQUAL,
- BINEXPR_LESS,
- BINEXPR_LESSEQUAL,
- BINEXPR_GREATER,
- BINEXPR_GREATEREQUAL,
- BINEXPR_BITWISE_AND,
- BINEXPR_BITWISE_OR,
- BINEXPR_BITWISE_XOR,
- BINEXPR_LOGICAL_AND,
- BINEXPR_LOGICAL_OR,
- BINEXPR_SHIFTLEFT,
- BINEXPR_SHIFTRIGHT,
- BINEXPR_ASSIGN,
- BINEXPR_MUL_ASSIGN,
- BINEXPR_DIV_ASSIGN,
- BINEXPR_MOD_ASSIGN,
- BINEXPR_ADD_ASSIGN,
- BINEXPR_SUB_ASSIGN,
- BINEXPR_SHIFTLEFT_ASSIGN,
- BINEXPR_SHIFTRIGHT_ASSIGN,
- BINEXPR_BITWISE_AND_ASSIGN,
- BINEXPR_BITWISE_XOR_ASSIGN,
- BINEXPR_BITWISE_OR_ASSIGN,
- BINEXPR_COMMA
-} binary_expression_type_t;
+ expression_base_t base;
+ expression_t *value; /**< The unary operand. */
+};
struct binary_expression_t {
- expression_t expression;
- binary_expression_type_t type;
- expression_t *left;
- expression_t *right;
+ expression_base_t base;
+ expression_t *left;
+ expression_t *right;
};
struct select_expression_t {
- expression_t expression;
- expression_t *compound;
- symbol_t *symbol;
-
- declaration_t *compound_entry;
+ expression_base_t base;
+ expression_t *compound;
+ entity_t *compound_entry;
};
struct array_access_expression_t {
- expression_t expression;
- expression_t *array_ref;
- expression_t *index;
+ expression_base_t base;
+ expression_t *array_ref; /**< the referenced array */
+ expression_t *index; /**< the index used */
+ bool flipped; /**< True if index/ref was written in a 5[a] way */
};
-struct sizeof_expression_t {
- expression_t expression;
- type_t *type;
- expression_t *size_expression;
+struct typeprop_expression_t {
+ expression_base_t base;
+ type_t *type;
+ expression_t *tp_expression;
};
-struct member_designator_t {
- symbol_t *symbol;
- expression_t *array_access;
- member_designator_t *next;
+struct designator_t {
+ position_t pos;
+ symbol_t *symbol; /**< the symbol if any */
+ expression_t *array_index; /**< the array index if any */
+ expression_t *range_last; /**< last index of a range initializer, if any */
+ designator_t *next;
};
struct offsetof_expression_t {
- expression_t expression;
- type_t *type;
- member_designator_t *member_designators;
+ expression_base_t base;
+ type_t *type;
+ designator_t *designator;
+};
+
+struct va_start_expression_t {
+ expression_base_t base;
+ expression_t *ap;
+ expression_t *parameter;
+};
+
+struct va_arg_expression_t {
+ expression_base_t base;
+ expression_t *ap;
+};
+
+struct va_copy_expression_t {
+ expression_base_t base;
+ expression_t *dst; /**< destination argument */
+ expression_t *src; /**< source argument */
};
struct conditional_expression_t {
- expression_t expression;
- expression_t *condition;
- expression_t *true_expression;
- expression_t *false_expression;
+ expression_base_t base;
+ expression_t *condition;
+ expression_t *true_expression;
+ expression_t *false_expression;
};
struct statement_expression_t {
- expression_t expression;
- statement_t *statement;
-};
-
-typedef enum {
- STORAGE_CLASS_NONE,
- STORAGE_CLASS_TYPEDEF,
- STORAGE_CLASS_EXTERN,
- STORAGE_CLASS_STATIC,
- STORAGE_CLASS_AUTO,
- STORAGE_CLASS_REGISTER,
- STORAGE_CLASS_ENUM_ENTRY
-} storage_class_t;
-
-struct declaration_t {
- storage_class_t storage_class;
- type_t *type;
- symbol_t *symbol;
- statement_t *statement;
- expression_t *initializer;
- source_position_t source_position;
- context_t context;
-
- declaration_t *next;
-};
-
-typedef enum {
- STATEMENT_INVALID,
+ expression_base_t base;
+ statement_t *statement;
+};
+
+struct classify_type_expression_t {
+ expression_base_t base;
+ expression_t *type_expression;
+};
+
+struct label_address_expression_t {
+ expression_base_t base;
+ label_t *label;
+};
+
+union expression_t {
+ expression_kind_t kind;
+ expression_base_t base;
+ literal_expression_t literal;
+ string_literal_expression_t string_literal;
+ funcname_expression_t funcname;
+ compound_literal_expression_t compound_literal;
+ builtin_constant_expression_t builtin_constant;
+ builtin_types_compatible_expression_t builtin_types_compatible;
+ reference_expression_t reference;
+ call_expression_t call;
+ unary_expression_t unary;
+ binary_expression_t binary;
+ select_expression_t select;
+ array_access_expression_t array_access;
+ typeprop_expression_t typeprop;
+ offsetof_expression_t offsetofe;
+ va_start_expression_t va_starte;
+ va_arg_expression_t va_arge;
+ va_copy_expression_t va_copye;
+ conditional_expression_t conditional;
+ statement_expression_t statement;
+ classify_type_expression_t classify_type;
+ label_address_expression_t label_address;
+};
+
+typedef enum initializer_kind_t {
+ INITIALIZER_VALUE,
+ INITIALIZER_LIST,
+ INITIALIZER_STRING,
+ INITIALIZER_DESIGNATOR
+} initializer_kind_t;
+
+struct initializer_base_t {
+ initializer_kind_t kind;
+};
+
+struct initializer_value_t {
+ initializer_base_t base;
+ expression_t *value;
+};
+
+struct initializer_list_t {
+ initializer_base_t base;
+ size_t len;
+ initializer_t *initializers[];
+};
+
+struct initializer_designator_t {
+ initializer_base_t base;
+ designator_t *designator;
+};
+
+union initializer_t {
+ initializer_kind_t kind;
+ initializer_base_t base;
+ initializer_value_t value;
+ initializer_list_t list;
+ initializer_designator_t designator;
+};
+
+static inline string_literal_expression_t const *get_init_string(initializer_t const *const init)
+{
+ assert(init->kind == INITIALIZER_STRING);
+ assert(init->value.value->kind == EXPR_STRING_LITERAL);
+ return &init->value.value->string_literal;
+}
+
+/**
+ * The statement kinds.
+ */
+typedef enum statement_kind_t {
+ STATEMENT_ERROR = 1,
+ STATEMENT_EMPTY,
STATEMENT_COMPOUND,
STATEMENT_RETURN,
STATEMENT_DECLARATION,
STATEMENT_EXPRESSION,
STATEMENT_CONTINUE,
STATEMENT_BREAK,
+ STATEMENT_COMPUTED_GOTO,
STATEMENT_GOTO,
STATEMENT_LABEL,
STATEMENT_CASE_LABEL,
- STATEMENT_WHILE,
STATEMENT_DO_WHILE,
- STATEMENT_FOR
-} statement_type_t;
-
-struct statement_t {
- statement_type_t type;
- statement_t *next;
- source_position_t source_position;
+ STATEMENT_FOR,
+ STATEMENT_ASM,
+ STATEMENT_MS_TRY, /**< MS __try/__finally or __try/__except */
+ STATEMENT_LEAVE /**< MS __leave */
+} statement_kind_t;
+
+/**
+ * The base class of every statement.
+ */
+struct statement_base_t {
+ statement_kind_t kind;
+ statement_t *next; /**< Point to the next statement in a compound statement. */
+ position_t pos;
+ statement_t *parent; /**< The Parent statement that controls the execution. */
+ bool reachable; /**< True, if this statement is reachable. */
+#ifndef NDEBUG
+ bool transformed;
+#endif
};
struct return_statement_t {
- statement_t statement;
- expression_t *return_value;
+ statement_base_t base;
+ expression_t *value; /**< The return value if any. */
};
struct compound_statement_t {
- statement_t statement;
- statement_t *statements;
- context_t context;
+ statement_base_t base;
+ statement_t *statements;
+ scope_t scope;
+ bool stmt_expr; /**< True if this compound statement is a statement expression. */
};
struct declaration_statement_t {
- statement_t statement;
- declaration_t *declarations_begin;
- declaration_t *declarations_end;
-
- int value_number; /**< filled in by semantic phase */
- int refs;
+ statement_base_t base;
+ entity_t *declarations_begin;
+ entity_t *declarations_end;
};
struct if_statement_t {
- statement_t statement;
- expression_t *condition;
- statement_t *true_statement;
- statement_t *false_statement;
+ statement_base_t base;
+ scope_t scope;
+ expression_t *condition;
+ statement_t *true_statement;
+ statement_t *false_statement;
};
struct switch_statement_t {
- statement_t statement;
- expression_t *expression;
- statement_t *body;
+ statement_base_t base;
+ scope_t scope;
+ expression_t *expression;
+ statement_t *body;
+ case_label_statement_t *first_case, *last_case; /**< List of all cases, including default. */
+ case_label_statement_t *default_label; /**< The default label if existent. */
};
struct goto_statement_t {
- statement_t statement;
- symbol_t *label_symbol;
- label_statement_t *label;
+ statement_base_t base;
+ label_t *label; /**< The destination label. */
+ goto_statement_t *next; /**< links all goto statements of a function */
+};
+
+struct computed_goto_statement_t {
+ statement_base_t base;
+ expression_t *expression; /**< The expression for the computed goto. */
};
struct case_label_statement_t {
- statement_t statement;
- expression_t *expression;
+ statement_base_t base;
+ expression_t *expression; /**< The case label expression, NULL for default label. */
+ expression_t *end_range; /**< For GNUC case a .. b: the end range expression, NULL else. */
+ case_label_statement_t *next; /**< link to the next case label in switch */
+ statement_t *statement;
+ ir_tarval *first_case;
+ ir_tarval *last_case;
+ bool is_bad; /**< If set marked as bad to suppress warnings. */
+ bool is_empty_range; /**< If set marked this as an empty range. */
+ long pn;
};
struct label_statement_t {
- statement_t statement;
- symbol_t *symbol;
+ statement_base_t base;
+ label_t *label;
+ statement_t *statement;
+ label_statement_t *next; /**< links all label statements of a function */
};
struct expression_statement_t {
- statement_t statement;
- expression_t *expression;
-};
-
-struct while_statement_t {
- statement_t statement;
- expression_t *condition;
- statement_t *body;
+ statement_base_t base;
+ expression_t *expression;
};
struct do_while_statement_t {
- statement_t statement;
- expression_t *condition;
- statement_t *body;
+ statement_base_t base;
+ scope_t scope;
+ expression_t *condition;
+ statement_t *body;
};
struct for_statement_t {
- statement_t statement;
- expression_t *initialisation;
- expression_t *condition;
- expression_t *step;
- statement_t *body;
- context_t context;
+ statement_base_t base;
+ scope_t scope;
+ expression_t *initialisation;
+ expression_t *condition;
+ expression_t *step;
+ statement_t *body;
+ bool condition_reachable:1;
+ bool step_reachable:1;
+};
+
+struct asm_argument_t {
+ string_t constraints;
+ expression_t *expression;
+ symbol_t *symbol;
+ asm_argument_t *next;
+};
+
+struct asm_clobber_t {
+ string_t clobber;
+ asm_clobber_t *next;
+};
+
+struct asm_label_t {
+ label_t *label;
+ asm_label_t *next;
+};
+
+struct asm_statement_t {
+ statement_base_t base;
+ string_t asm_text;
+ asm_argument_t *inputs;
+ asm_argument_t *outputs;
+ asm_clobber_t *clobbers;
+ asm_label_t *labels;
+ bool is_volatile;
+};
+
+struct ms_try_statement_t {
+ statement_base_t base;
+ statement_t *try_statement;
+ expression_t *except_expression; /**< non-null for except, NULL for finally */
+ statement_t *final_statement;
+};
+
+struct leave_statement_t {
+ statement_base_t base;
+};
+
+union statement_t {
+ statement_kind_t kind;
+ statement_base_t base;
+ return_statement_t returns;
+ compound_statement_t compound;
+ declaration_statement_t declaration;
+ if_statement_t ifs;
+ switch_statement_t switchs;
+ computed_goto_statement_t computed_goto;
+ goto_statement_t gotos;
+ case_label_statement_t case_label;
+ label_statement_t label;
+ expression_statement_t expression;
+ do_while_statement_t do_while;
+ for_statement_t fors;
+ asm_statement_t asms;
+ ms_try_statement_t ms_try;
+ leave_statement_t leave;
};
struct translation_unit_t {
- context_t context;
+ scope_t scope;
+ statement_t *global_asm;
};
-static inline
-void *_allocate_ast(size_t size)
+/**
+ * Allocate an AST node with given size and
+ * initialize all fields with zero.
+ */
+static inline void *allocate_ast_zero(size_t size)
{
- return obstack_alloc(&ast_obstack, size);
+ return memset(obstack_alloc(&ast_obstack, size), 0, size);
}
-#define allocate_ast(size) _allocate_ast(size)
+/** If set, implicit casts are printed. */
+extern bool print_implicit_casts;
+/** If set parenthesis are printed to indicate operator precedence. */
+extern bool print_parenthesis;
#endif
projects / cparser / blobdiff