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// Copyright (c) 2012, 2017 Peter Ohler. All rights reserved.
// Licensed under the MIT License. See LICENSE file in the project root for license details.
#include <errno.h>
#include "dump.h"
#include "oj.h"
static void dump_leaf(Leaf leaf, int depth, Out out);
inline static void dump_chars(const char *s, size_t size, Out out) {
assure_size(out, size);
APPEND_CHARS(out->cur, s, size);
*out->cur = '\0';
}
static void dump_leaf_str(Leaf leaf, Out out) {
switch (leaf->value_type) {
case STR_VAL: oj_dump_cstr(leaf->str, strlen(leaf->str), 0, 0, out); break;
case RUBY_VAL: oj_dump_cstr(StringValueCStr(leaf->value), (int)RSTRING_LEN(leaf->value), 0, 0, out); break;
case COL_VAL:
default: rb_raise(rb_eTypeError, "Unexpected value type %02x.\n", leaf->value_type); break;
}
}
static void dump_leaf_fixnum(Leaf leaf, Out out) {
switch (leaf->value_type) {
case STR_VAL: dump_chars(leaf->str, strlen(leaf->str), out); break;
case RUBY_VAL:
if (T_BIGNUM == rb_type(leaf->value)) {
oj_dump_bignum(leaf->value, 0, out, false);
} else {
oj_dump_fixnum(leaf->value, 0, out, false);
}
break;
case COL_VAL:
default: rb_raise(rb_eTypeError, "Unexpected value type %02x.\n", leaf->value_type); break;
}
}
static void dump_leaf_float(Leaf leaf, Out out) {
switch (leaf->value_type) {
case STR_VAL: dump_chars(leaf->str, strlen(leaf->str), out); break;
case RUBY_VAL: oj_dump_float(leaf->value, 0, out, false); break;
case COL_VAL:
default: rb_raise(rb_eTypeError, "Unexpected value type %02x.\n", leaf->value_type); break;
}
}
static void dump_leaf_array(Leaf leaf, int depth, Out out) {
size_t size;
int d2 = depth + 1;
size = 2;
assure_size(out, size);
*out->cur++ = '[';
if (0 == leaf->elements) {
*out->cur++ = ']';
} else {
Leaf first = leaf->elements->next;
Leaf e = first;
size = d2 * out->indent + 2;
do {
assure_size(out, size);
fill_indent(out, d2);
dump_leaf(e, d2, out);
if (e->next != first) {
*out->cur++ = ',';
}
e = e->next;
} while (e != first);
size = depth * out->indent + 1;
assure_size(out, size);
fill_indent(out, depth);
*out->cur++ = ']';
}
*out->cur = '\0';
}
static void dump_leaf_hash(Leaf leaf, int depth, Out out) {
size_t size;
int d2 = depth + 1;
size = 2;
assure_size(out, size);
*out->cur++ = '{';
if (0 == leaf->elements) {
*out->cur++ = '}';
} else {
Leaf first = leaf->elements->next;
Leaf e = first;
size = d2 * out->indent + 2;
do {
assure_size(out, size);
fill_indent(out, d2);
oj_dump_cstr(e->key, strlen(e->key), 0, 0, out);
*out->cur++ = ':';
dump_leaf(e, d2, out);
if (e->next != first) {
*out->cur++ = ',';
}
e = e->next;
} while (e != first);
size = depth * out->indent + 1;
assure_size(out, size);
fill_indent(out, depth);
*out->cur++ = '}';
}
*out->cur = '\0';
}
static void dump_leaf(Leaf leaf, int depth, Out out) {
switch (leaf->rtype) {
case T_NIL: oj_dump_nil(Qnil, 0, out, false); break;
case T_TRUE: oj_dump_true(Qtrue, 0, out, false); break;
case T_FALSE: oj_dump_false(Qfalse, 0, out, false); break;
case T_STRING: dump_leaf_str(leaf, out); break;
case T_FIXNUM: dump_leaf_fixnum(leaf, out); break;
case T_FLOAT: dump_leaf_float(leaf, out); break;
case T_ARRAY: dump_leaf_array(leaf, depth, out); break;
case T_HASH: dump_leaf_hash(leaf, depth, out); break;
default: rb_raise(rb_eTypeError, "Unexpected type %02x.\n", leaf->rtype); break;
}
}
void oj_dump_leaf_to_json(Leaf leaf, Options copts, Out out) {
if (0 == out->buf) {
oj_out_init(out);
}
out->cur = out->buf;
out->circ_cnt = 0;
out->opts = copts;
out->hash_cnt = 0;
out->indent = copts->indent;
dump_leaf(leaf, 0, out);
}
void oj_write_leaf_to_file(Leaf leaf, const char *path, Options copts) {
struct _out out;
size_t size;
FILE *f;
oj_out_init(&out);
out.omit_nil = copts->dump_opts.omit_nil;
oj_dump_leaf_to_json(leaf, copts, &out);
size = out.cur - out.buf;
if (0 == (f = fopen(path, "w"))) {
rb_raise(rb_eIOError, "%s\n", strerror(errno));
}
if (size != fwrite(out.buf, 1, size, f)) {
int err = ferror(f);
rb_raise(rb_eIOError, "Write failed. [%d:%s]\n", err, strerror(err));
}
oj_out_free(&out);
fclose(f);
}
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