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/*************************************************************************
* Copyright (C) 2010 Tavian Barnes <tavianator@gmail.com> *
* *
* This file is part of Dimension. *
* *
* Dimension 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 3 of the License, or (at *
* your option) any later version. *
* *
* Dimension 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, see <http://www.gnu.org/licenses/>. *
*************************************************************************/
#include "parse.h"
#include "tokenize.h"
#include "utility.h"
#include <stdlib.h>
#include <stdio.h>
#define YYSTYPE dmnsn_parse_item
#define YYLTYPE dmnsn_parse_location
#define YYLLOC_DEFAULT(Current, Rhs, N) \
do { \
if (N) { \
(Current).first_filename = YYRHSLOC(Rhs, 1).first_filename; \
(Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
(Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
(Current).last_filename = YYRHSLOC(Rhs, N).last_filename; \
(Current).last_line = YYRHSLOC(Rhs, N).last_line; \
(Current).last_column = YYRHSLOC(Rhs, N).last_column; \
} else { \
(Current).first_filename = (Current).last_filename = \
YYRHSLOC(Rhs, 0).last_filename; \
(Current).first_line = (Current).last_line = \
YYRHSLOC(Rhs, 0).last_line; \
(Current).first_column = (Current).last_column = \
YYRHSLOC(Rhs, 0).last_column; \
} \
} while (0)
/* Create a new astnode, populating filename, line, and col */
static dmnsn_astnode
dmnsn_new_astnode(dmnsn_astnode_type type, YYLTYPE lloc)
{
dmnsn_astnode astnode = {
.type = type,
.children = dmnsn_new_array(sizeof(dmnsn_astnode)),
.ptr = NULL,
.refcount = malloc(sizeof(unsigned int)),
.filename = lloc.first_filename,
.line = lloc.first_line,
.col = lloc.first_column
};
if (!astnode.refcount) {
dmnsn_error(DMNSN_SEVERITY_HIGH, "Couldn't allocate reference count.");
}
*astnode.refcount = 1;
return astnode;
}
/* Semi-shallow copy */
static void
dmnsn_copy_children(dmnsn_astnode dest, dmnsn_astnode src)
{
unsigned int i;
for (i = 0; i < dmnsn_array_size(src.children); ++i) {
dmnsn_astnode node;
dmnsn_array_get(src.children, i, &node);
++*node.refcount;
if (i < dmnsn_array_size(dest.children)) {
dmnsn_astnode clobbered;
dmnsn_array_get(dest.children, i, &clobbered);
dmnsn_delete_astnode(clobbered);
}
dmnsn_array_set(dest.children, i, &node);
}
}
static dmnsn_astnode
dmnsn_new_astnode1(dmnsn_astnode_type type, YYLTYPE lloc, dmnsn_astnode n1)
{
dmnsn_astnode astnode = dmnsn_new_astnode(type, lloc);
dmnsn_array_push(astnode.children, &n1);
return astnode;
}
static dmnsn_astnode
dmnsn_new_astnode2(dmnsn_astnode_type type, YYLTYPE lloc,
dmnsn_astnode n1, dmnsn_astnode n2)
{
dmnsn_astnode astnode = dmnsn_new_astnode(type, lloc);
dmnsn_array_push(astnode.children, &n1);
dmnsn_array_push(astnode.children, &n2);
return astnode;
}
static dmnsn_astnode
dmnsn_new_astnode3(dmnsn_astnode_type type, YYLTYPE lloc,
dmnsn_astnode n1, dmnsn_astnode n2, dmnsn_astnode n3)
{
dmnsn_astnode astnode = dmnsn_new_astnode(type, lloc);
dmnsn_array_push(astnode.children, &n1);
dmnsn_array_push(astnode.children, &n2);
dmnsn_array_push(astnode.children, &n3);
return astnode;
}
static dmnsn_astnode
dmnsn_new_astnode4(dmnsn_astnode_type type, YYLTYPE lloc,
dmnsn_astnode n1, dmnsn_astnode n2, dmnsn_astnode n3,
dmnsn_astnode n4)
{
dmnsn_astnode astnode = dmnsn_new_astnode(type, lloc);
dmnsn_array_push(astnode.children, &n1);
dmnsn_array_push(astnode.children, &n2);
dmnsn_array_push(astnode.children, &n3);
dmnsn_array_push(astnode.children, &n4);
return astnode;
}
static dmnsn_astnode
dmnsn_new_astnode5(dmnsn_astnode_type type, YYLTYPE lloc,
dmnsn_astnode n1, dmnsn_astnode n2, dmnsn_astnode n3,
dmnsn_astnode n4, dmnsn_astnode n5)
{
dmnsn_astnode astnode = dmnsn_new_astnode(type, lloc);
dmnsn_array_push(astnode.children, &n1);
dmnsn_array_push(astnode.children, &n2);
dmnsn_array_push(astnode.children, &n3);
dmnsn_array_push(astnode.children, &n4);
dmnsn_array_push(astnode.children, &n5);
return astnode;
}
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