/*!
* Copyright (c) Squirrel Chat et al., All rights reserved.
* SPDX-License-Identifier: BSD-3-Clause
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
*/
import { parseKey } from './struct.js';
import { extractValue } from './extract.js';
import { skipVoid } from './util.js';
import { TomlError } from './error.js';
function peekTable(key, table, meta, type) {
let t = table;
let m = meta;
let k;
let hasOwn = false;
let state;
for (let i = 0; i < key.length; i++) {
if (i) {
t = hasOwn ? t[k] : (t[k] = {});
m = (state = m[k]).c;
if (type === 0 /* Type.DOTTED */ && (state.t === 1 /* Type.EXPLICIT */ || state.t === 2 /* Type.ARRAY */)) {
return null;
}
if (state.t === 2 /* Type.ARRAY */) {
let l = t.length - 1;
t = t[l];
m = m[l].c;
}
}
k = key[i];
if ((hasOwn = Object.hasOwn(t, k)) && m[k]?.t === 0 /* Type.DOTTED */ && m[k]?.d) {
return null;
}
if (!hasOwn) {
if (k === '__proto__') {
Object.defineProperty(t, k, { enumerable: true, configurable: true, writable: true });
Object.defineProperty(m, k, { enumerable: true, configurable: true, writable: true });
}
m[k] = {
t: i < key.length - 1 && type === 2 /* Type.ARRAY */
? 3 /* Type.ARRAY_DOTTED */ : type,
d: false,
i: 0,
c: {},
};
}
}
state = m[k];
if (state.t !== type && !(type === 1 /* Type.EXPLICIT */ && state.t === 3 /* Type.ARRAY_DOTTED */)) {
// Bad key type!
return null;
}
if (type === 2 /* Type.ARRAY */) {
if (!state.d) {
state.d = true;
t[k] = [];
}
t[k].push(t = {});
state.c[state.i++] = (state = { t: 1 /* Type.EXPLICIT */, d: false, i: 0, c: {} });
}
if (state.d) {
// Redefining a table!
return null;
}
state.d = true;
if (type === 1 /* Type.EXPLICIT */) {
t = hasOwn ? t[k] : (t[k] = {});
}
else if (type === 0 /* Type.DOTTED */ && hasOwn) {
return null;
}
return [k, t, state.c];
}
export function parse(toml, { maxDepth = 1000, integersAsBigInt } = {}) {
let res = {};
let meta = {};
let tbl = res;
let m = meta;
for (let ptr = skipVoid(toml, 0); ptr < toml.length;) {
if (toml[ptr] === '[') {
let isTableArray = toml[++ptr] === '[';
let k = parseKey(toml, (ptr += +isTableArray), ']');
if (isTableArray) {
if (toml[k[1] - 1] !== ']') {
throw new TomlError('expected end of table declaration', {
toml: toml,
ptr: k[1] - 1,
});
}
k[1]++;
}
let p = peekTable(k[0], res, meta, isTableArray ? 2 /* Type.ARRAY */ : 1 /* Type.EXPLICIT */);
if (!p) {
throw new TomlError('trying to redefine an already defined table or value', {
toml: toml,
ptr: ptr,
});
}
m = p[2];
tbl = p[1];
ptr = k[1];
}
else {
let k = parseKey(toml, ptr);
let p = peekTable(k[0], tbl, m, 0 /* Type.DOTTED */);
if (!p) {
throw new TomlError('trying to redefine an already defined table or value', {
toml: toml,
ptr: ptr,
});
}
let v = extractValue(toml, k[1], void 0, maxDepth, integersAsBigInt);
p[1][p[0]] = v[0];
ptr = v[1];
}
ptr = skipVoid(toml, ptr, true);
if (toml[ptr] && toml[ptr] !== '\n' && toml[ptr] !== '\r') {
throw new TomlError('each key-value declaration must be followed by an end-of-line', {
toml: toml,
ptr: ptr,
});
}
ptr = skipVoid(toml, ptr);
}
return res;
}
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