+/*
+ * This file is part of cparser.
+ * Copyright (C) 2012 Matthias Braun <matze@braunis.de>
+ */
#ifndef TYPE_H
#define TYPE_H
#include <stdio.h>
#include <stdbool.h>
+#include "ast.h"
#include "symbol.h"
+/** Type used to express sizes. */
+typedef unsigned long il_size_t;
+typedef unsigned char il_alignment_t;
+
+/* note that the constant values represent the rank of the types as defined
+ * in § 6.3.1 */
+typedef enum atomic_type_kind_t {
+ ATOMIC_TYPE_VOID = 1,
+ ATOMIC_TYPE_BOOL,
+ ATOMIC_TYPE_WCHAR_T, /* only used in C++, in C code wchar_t is a pp-macro */
+ ATOMIC_TYPE_CHAR,
+ ATOMIC_TYPE_SCHAR,
+ ATOMIC_TYPE_UCHAR,
+ ATOMIC_TYPE_SHORT,
+ ATOMIC_TYPE_USHORT,
+ ATOMIC_TYPE_INT,
+ ATOMIC_TYPE_UINT,
+ ATOMIC_TYPE_LONG,
+ ATOMIC_TYPE_ULONG,
+ ATOMIC_TYPE_LONGLONG,
+ ATOMIC_TYPE_ULONGLONG,
+ ATOMIC_TYPE_FLOAT,
+ ATOMIC_TYPE_DOUBLE,
+ ATOMIC_TYPE_LONG_DOUBLE,
+
+ ATOMIC_TYPE_LAST = ATOMIC_TYPE_LONG_DOUBLE
+} atomic_type_kind_t;
+
+typedef enum atomic_type_flag_t {
+ ATOMIC_TYPE_FLAG_NONE = 0,
+ ATOMIC_TYPE_FLAG_SIGNED = 1 << 0,
+ ATOMIC_TYPE_FLAG_INTEGER = 1 << 1,
+ ATOMIC_TYPE_FLAG_FLOAT = 1 << 2,
+ ATOMIC_TYPE_FLAG_ARITHMETIC = 1 << 3,
+} atomic_type_flag_t;
+
+typedef enum type_qualifier_t {
+ TYPE_QUALIFIER_NONE = 0,
+ TYPE_QUALIFIER_CONST = 1 << 0,
+ TYPE_QUALIFIER_RESTRICT = 1 << 1,
+ TYPE_QUALIFIER_VOLATILE = 1 << 2,
+ /* microsoft extended qualifiers */
+ TYPE_QUALIFIER_W64 = 1 << 3,
+ TYPE_QUALIFIER_PTR32 = 1 << 4,
+ TYPE_QUALIFIER_PTR64 = 1 << 5,
+ TYPE_QUALIFIER_SPTR = 1 << 6,
+ TYPE_QUALIFIER_UPTR = 1 << 7,
+} type_qualifier_t;
+typedef unsigned short type_qualifiers_t;
+
typedef struct type_base_t type_base_t;
typedef struct atomic_type_t atomic_type_t;
typedef struct pointer_type_t pointer_type_t;
+typedef struct reference_type_t reference_type_t;
typedef struct function_parameter_t function_parameter_t;
typedef struct function_type_t function_type_t;
typedef struct compound_type_t compound_type_t;
typedef struct builtin_type_t builtin_type_t;
typedef struct array_type_t array_type_t;
typedef struct typedef_type_t typedef_type_t;
+typedef struct bitfield_type_t bitfield_type_t;
typedef struct typeof_type_t typeof_type_t;
typedef union type_t type_t;
-void init_types(void);
+/**
+ * Initializes the type system. Attempts to set some defaults on the atomic
+ * types based on a given machine size.
+ * These type properties are not final but you should adapt them to your system
+ * as your architecture and operating systems application binary interface (ABI)
+ * requires.
+ */
+void init_types(unsigned machine_size);
void exit_types(void);
+/**
+ * Prints a type.
+ *
+ * @param type The type.
+ */
void print_type(const type_t *type);
/**
* if symbol is NULL
*/
void print_type_ext(const type_t *type, const symbol_t *symbol,
- const context_t *context);
+ const scope_t *parameters);
-void print_type_qualifiers(unsigned qualifiers);
+typedef enum QualifierSeparators {
+ QUAL_SEP_NONE = 0,
+ QUAL_SEP_START = 1U << 0,
+ QUAL_SEP_END = 1U << 1
+} QualifierSeparators;
-void print_enum_definition(const declaration_t *declaration);
-void print_compound_definition(const declaration_t *declaration);
+void print_type_qualifiers(type_qualifiers_t qualifiers, QualifierSeparators);
/**
- * set output stream for the type printer
+ * Prints an enum definition.
+ *
+ * @param declaration The enum's type declaration.
*/
-void type_set_output(FILE *out);
+void print_enum_definition(const enum_t *enume);
+
+/**
+ * Print the compound part of a compound type.
+ */
+void print_compound_definition(const compound_t *compound);
void inc_type_visited(void);
/**
- * returns true if type contains integer numbers
+ * Returns true if the given type is an integer type.
+ *
+ * @param type The type to check.
+ * @return True if type is an integer type.
*/
bool is_type_integer(const type_t *type);
/**
- * return true if type contains signed numbers
+ * Returns true if the given type is an enum type.
+ *
+ * @param type The type to check.
+ * @return True if type is an enum type.
+ */
+bool is_type_enum(const type_t *type);
+
+/**
+ * Returns true if the given type is a signed type.
+ *
+ * @param type The type to check.
+ * @return True if type is a signed type.
*/
bool is_type_signed(const type_t *type);
/**
- * returns true if type contains floating point numbers
+ * Returns true if the given type is a floating point type.
+ *
+ * @param type The type to check.
+ * @return True if type is a floating point type.
*/
-bool is_type_floating(const type_t *type);
+bool is_type_float(const type_t *type);
/**
- * returns true if the type is valid. A type is valid if it contains no
- * unresolved references anymore and is not of TYPE_INVALID.
+ * Returns true if the given type is a complex type.
+ *
+ * @param type The type to check.
+ * @return True if type is a complex type.
*/
-bool type_valid(const type_t *type);
+bool is_type_complex(const type_t *type);
/**
- * returns true if the type is an arithmetic type (6.2.18)
+ * Returns true if the given type is an integer or float type.
+ *
+ * @param type The type to check.
+ * @return True if type is an integer or float type.
+ */
+bool is_type_real(const type_t *type);
+
+/**
+ * Returns true if the type is an arithmetic type (§6.2.5 clause 18)
+ *
+ * @param type The type to check.
+ * @return True if type represents an arithmetic type.
*/
bool is_type_arithmetic(const type_t *type);
/**
- * returns true if the type is a scalar type (6.2.21)
+ * Returns true if the type is a scalar type (§6.2.5 clause 21)
+ *
+ * @param type The type to check.
+ * @return True if type represents a scalar type.
*/
bool is_type_scalar(const type_t *type);
+/**
+ * Check if a given type is incomplete.
+ *
+ * @param type The type to check.
+ * @return True if the given type is incomplete (i.e. just forward).
+ */
bool is_type_incomplete(const type_t *type);
-bool types_compatible(const type_t *type1, const type_t *type2);
+bool is_type_object(const type_t *type);
-bool pointers_compatible(const type_t *type1, const type_t *type2);
+/**
+ * Check if two types are compatible.
+ */
+bool types_compatible(const type_t *type1, const type_t *type2);
+/**
+ * Returns the unqualified type of a given type.
+ *
+ * @param type The type.
+ * @returns The unqualified type.
+ */
type_t *get_unqualified_type(type_t *type);
+
+type_t *get_qualified_type(type_t*, type_qualifiers_t);
type_t *skip_typeref(type_t *type);
+/**
+ * Return the type qualifier set of a type. If skip_array_type
+ * is true, skip all array types.
+ */
+type_qualifiers_t get_type_qualifier(const type_t *type, bool skip_array_type);
+
+/**
+ * returns size of an atomic type kind in bytes
+ */
+unsigned get_atomic_type_size(atomic_type_kind_t kind);
+
+/**
+ * returns alignment of an atomic type kind in bytes
+ */
+unsigned get_atomic_type_alignment(atomic_type_kind_t kind);
+
+unsigned get_type_alignment(type_t *type);
+unsigned get_type_size(type_t *type);
+decl_modifiers_t get_type_modifiers(const type_t *type);
+
+/**
+ * returns flags of an atomic type kind
+ */
+unsigned get_atomic_type_flags(atomic_type_kind_t kind);
+
+/**
+ * Find the atomic type kind representing a given size (signed).
+ */
+atomic_type_kind_t find_signed_int_atomic_type_kind_for_size(unsigned size);
+
+/**
+ * Find the atomic type kind representing a given size (unsigned).
+ */
+atomic_type_kind_t find_unsigned_int_atomic_type_kind_for_size(unsigned size);
+
+const char *get_atomic_kind_name(atomic_type_kind_t kind);
+
+/**
+ * Finish the construction of a struct type by calculating its size, offsets,
+ * alignment.
+ */
+void layout_struct_type(compound_type_t *type);
+
+/**
+ * Finish the construction of an union type by calculating
+ * its size and alignment.
+ */
+void layout_union_type(compound_type_t *type);
+
#endif
projects / cparser / blobdiff