* Expression kinds.
*/
typedef enum expression_kind_t {
- EXPR_UNKNOWN = 0,
- EXPR_INVALID,
+ EXPR_ERROR = 1,
EXPR_REFERENCE,
- EXPR_REFERENCE_ENUM_VALUE,
- EXPR_CONST,
- EXPR_CHARACTER_CONSTANT,
- EXPR_WIDE_CHARACTER_CONSTANT,
+ EXPR_ENUM_CONSTANT,
+ EXPR_LITERAL_BOOLEAN,
+ EXPR_LITERAL_INTEGER,
+ EXPR_LITERAL_INTEGER_OCTAL,
+ EXPR_LITERAL_INTEGER_HEXADECIMAL,
+ EXPR_LITERAL_FLOATINGPOINT,
+ EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL,
+ EXPR_LITERAL_CHARACTER,
+ EXPR_LITERAL_WIDE_CHARACTER,
+ EXPR_LITERAL_MS_NOOP, /**< MS __noop extension */
EXPR_STRING_LITERAL,
EXPR_WIDE_STRING_LITERAL,
EXPR_COMPOUND_LITERAL,
EXPR_UNARY_PREFIX_INCREMENT,
EXPR_UNARY_PREFIX_DECREMENT,
EXPR_UNARY_CAST,
- EXPR_UNARY_CAST_IMPLICIT, /**< compiler generated cast */
EXPR_UNARY_ASSUME, /**< MS __assume() */
EXPR_UNARY_DELETE,
EXPR_UNARY_DELETE_ARRAY,
} funcname_kind_t;
/* convenience macros */
-#define EXPR_BINARY_CASES \
- case 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:
+#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 \
- case EXPR_UNARY_NEGATE: \
- case EXPR_UNARY_PLUS: \
- case EXPR_UNARY_BITWISE_NEGATE: \
- 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_CAST_IMPLICIT: \
- case EXPR_UNARY_ASSUME: \
- case EXPR_UNARY_DELETE: \
- case EXPR_UNARY_DELETE_ARRAY:
+#define EXPR_UNARY_CASES_MANDATORY \
+ EXPR_UNARY_NEGATE: \
+ case EXPR_UNARY_PLUS: \
+ case EXPR_UNARY_BITWISE_NEGATE: \
+ 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
/**
* unary expression with optional operand
*/
#define EXPR_UNARY_CASES_OPTIONAL \
- case EXPR_UNARY_THROW: \
-
-#define EXPR_UNARY_CASES \
- EXPR_UNARY_CASES_MANDATORY \
- 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_INTEGER_OCTAL: \
+ case EXPR_LITERAL_INTEGER_HEXADECIMAL: \
+ case EXPR_LITERAL_FLOATINGPOINT: \
+ case EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL: \
+ case EXPR_LITERAL_CHARACTER: \
+ case EXPR_LITERAL_WIDE_CHARACTER: \
+ case EXPR_LITERAL_MS_NOOP
/**
* The base class of every expression.
#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
+ */
};
/**
- * A constant.
+ * integer/float constants, character and string literals
*/
-struct const_expression_t {
+struct literal_expression_t {
expression_base_t base;
- union {
- long long int_value;
- long double float_value;
- string_t character;
- wide_string_t wide_character;
- } v;
- bool is_ms_noop; /**< True, if this constant is the result
- of an microsoft __noop operator */
+ string_t value;
+ string_t suffix;
+
+ /* ast2firm data */
+ ir_tarval *target_value;
};
struct string_literal_expression_t {
string_t value; /**< the value once assigned. */
};
-struct wide_string_literal_expression_t {
- expression_base_t base;
- wide_string_t value;
-};
-
struct compound_literal_expression_t {
expression_base_t base;
type_t *type;
expression_base_t base;
expression_t *compound;
entity_t *compound_entry;
- bool implicit : 1; /**< compiler generated select
- (for anonymous struct/union) */
};
struct array_access_expression_t {
union expression_t {
expression_kind_t kind;
expression_base_t base;
- const_expression_t conste;
+ literal_expression_t literal;
+ string_literal_expression_t string_literal;
funcname_expression_t funcname;
- string_literal_expression_t string;
- wide_string_literal_expression_t wide_string;
compound_literal_expression_t compound_literal;
builtin_constant_expression_t builtin_constant;
builtin_types_compatible_expression_t builtin_types_compatible;
struct initializer_wide_string_t {
initializer_base_t base;
- wide_string_t string;
+ string_t string;
};
struct initializer_designator_t {
* The statement kinds.
*/
typedef enum statement_kind_t {
- STATEMENT_INVALID,
+ STATEMENT_ERROR = 1,
STATEMENT_EMPTY,
STATEMENT_COMPOUND,
STATEMENT_RETURN,
STATEMENT_EXPRESSION,
STATEMENT_CONTINUE,
STATEMENT_BREAK,
+ STATEMENT_COMPUTED_GOTO,
STATEMENT_GOTO,
STATEMENT_LABEL,
STATEMENT_CASE_LABEL,
#endif
};
-struct invalid_statement_t {
- statement_base_t base;
-};
-
-struct empty_statement_t {
- statement_base_t base;
-};
-
struct return_statement_t {
statement_base_t base;
expression_t *value; /**< The return value if any. */
struct if_statement_t {
statement_base_t base;
+ scope_t scope;
expression_t *condition;
statement_t *true_statement;
statement_t *false_statement;
struct switch_statement_t {
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. */
- unsigned long default_proj_nr; /**< The Proj-number for the default Proj. */
+ 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_base_t base;
label_t *label; /**< The destination label. */
- expression_t *expression; /**< The expression for an assigned goto. */
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_base_t base;
expression_t *expression; /**< The case label expression, NULL for default label. */
long last_case; /**< The folded value of end_range. */
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 {
struct while_statement_t {
statement_base_t base;
+ scope_t scope;
expression_t *condition;
statement_t *body;
};
struct do_while_statement_t {
statement_base_t base;
+ scope_t scope;
expression_t *condition;
statement_t *body;
};
struct for_statement_t {
statement_base_t base;
+ scope_t scope;
expression_t *initialisation;
expression_t *condition;
expression_t *step;
statement_t *body;
- scope_t scope;
bool condition_reachable:1;
bool step_reachable:1;
};
};
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;
- goto_statement_t gotos;
- case_label_statement_t case_label;
- label_statement_t label;
- expression_statement_t expression;
- while_statement_t whiles;
- do_while_statement_t do_while;
- for_statement_t fors;
- asm_statement_t asms;
- ms_try_statement_t ms_try;
- leave_statement_t leave;
+ 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;
+ while_statement_t whiles;
+ 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 {
statement_t *global_asm;
};
-static inline
-void *_allocate_ast(size_t size)
-{
- return obstack_alloc(&ast_obstack, size);
-}
-
-static inline
-bool is_invalid_expression(expression_t *expression)
-{
- return expression->base.kind == EXPR_INVALID;
-}
-
-static inline
-bool is_invalid_statement(statement_t *statement)
+/**
+ * Allocate an AST node with given size and
+ * initialize all fields with zero.
+ */
+static inline void *allocate_ast_zero(size_t size)
{
- return statement->base.kind == STATEMENT_INVALID;
+ 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