/*
* Copyright (c) 2010 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @file Static type system representation. */
#ifndef TDATA_T_H_
#define TDATA_T_H_
#include "intmap_t.h"
/** Class of primitive type. */
typedef enum {
/** Boolean type */
tpc_bool,
/** Character type */
tpc_char,
/** Integer type */
tpc_int,
/** Special type for nil reference */
tpc_nil,
/** String type */
tpc_string,
/** Resource type */
tpc_resource
} tprimitive_class_t;
/** Primitive type. */
typedef struct {
/** Class of primitive type */
tprimitive_class_t tpc;
} tdata_primitive_t;
/** Object type. */
typedef struct {
/** @c sn_static if expression is a static CSI reference */
statns_t static_ref;
/** CSI definition */
struct stree_csi *csi;
/** (Real) type arguments */
list_t targs; /* of tdata_item_t */
} tdata_object_t;
/** Array type. */
typedef struct {
/** Base type item */
struct tdata_item *base_ti;
/** Rank */
int rank;
/** Extents */
list_t extents; /* of stree_expr_t */
} tdata_array_t;
/** Function signature type.
*
* This is a part of functional type or delegate type.
*/
typedef struct {
/** Types of fixed arguments. */
list_t arg_ti; /* of tdata_item_t */
/** Type of variadic argument */
struct tdata_item *varg_ti;
/** Return type */
struct tdata_item *rtype;
} tdata_fun_sig_t;
/** Delegate type. */
typedef struct {
/** Delegate definition or @c NULL if anonymous delegate */
struct stree_deleg *deleg;
/** Delegate signature type */
tdata_fun_sig_t *tsig;
} tdata_deleg_t;
/** Enum-base type.
*
* Type for expression which reference an enum declaration. In run time
* enum type reference is represented by @c rdata_deleg_t. (Which is used
* for any symbol references).
*/
typedef struct {
/** Enum definition */
struct stree_enum *enum_d;
} tdata_ebase_t;
/** Enum type. */
typedef struct {
/** Enum definition */
struct stree_enum *enum_d;
} tdata_enum_t;
/** Functional type. */
typedef struct {
/** Delegate definition or @c NULL if anonymous delegate */
struct stree_deleg *deleg;
/** Function signature type */
tdata_fun_sig_t *tsig;
} tdata_fun_t;
/** Type variable reference. */
typedef struct {
/** Definition of type argument this variable is referencing. */
struct stree_targ *targ;
} tdata_vref_t;
typedef enum {
/** Primitive type item */
tic_tprimitive,
/** Object type item */
tic_tobject,
/** Array type item */
tic_tarray,
/** Delegate type item */
tic_tdeleg,
/** Enum-base type item */
tic_tebase,
/** Enum type item */
tic_tenum,
/** Function type item */
tic_tfun,
/** Type variable item */
tic_tvref,
/** Special error-recovery type item */
tic_ignore
} titem_class_t;
/** Type item, the result of evaluating a type expression. */
typedef struct tdata_item {
titem_class_t tic;
union {
tdata_primitive_t *tprimitive;
tdata_object_t *tobject;
tdata_array_t *tarray;
tdata_deleg_t *tdeleg;
tdata_ebase_t *tebase;
tdata_enum_t *tenum;
tdata_fun_t *tfun;
tdata_vref_t *tvref;
} u;
} tdata_item_t;
/** Type variable valuation (mapping of type argument names to values). */
typedef struct {
/** Maps name SID to type item */
intmap_t tvv; /* of tdata_item_t */
} tdata_tvv_t;
#endif