mirror of
https://github.com/Telecominfraproject/ols-ucentral-schema.git
synced 2025-11-03 19:47:49 +00:00
404a9a34c2
- Introduce virtual uCentral class hierarchy - Add documentation for toplevel helper functions Signed-off-by: Jo-Philipp Wich <jo@mein.io>
651 lines
14 KiB
JavaScript
651 lines
14 KiB
JavaScript
/*
|
|
* ucode-transpiler.js - JSDoc plugin to naively transpile ucode into JS.
|
|
*
|
|
* Copyright (C) 2021 Jo-Philipp Wich <jo@mein.io>
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
function skipString(s) {
|
|
let q = s.charAt(0);
|
|
let esc = false;
|
|
|
|
for (let i = 1; i < s.length; i++) {
|
|
let c = s.charAt(i);
|
|
|
|
if (esc) {
|
|
esc = false;
|
|
continue;
|
|
}
|
|
else if (c == '\\') {
|
|
esc = true;
|
|
continue;
|
|
}
|
|
else if (c == q) {
|
|
// consume regex literal flags
|
|
while (q == '/' && s.charAt(i + 1).match(/[gis]/))
|
|
i++;
|
|
|
|
return [ s.substring(0, i + 1), s.substring(i + 1) ];
|
|
}
|
|
}
|
|
|
|
throw 'Unterminated string literal';
|
|
}
|
|
|
|
function skipComment(s) {
|
|
let q = s.charAt(1),
|
|
end = (q == '/') ? '\n' : '*/',
|
|
esc = false;
|
|
|
|
for (let i = 2; i < s.length; i++) {
|
|
let c = s.charAt(i);
|
|
|
|
if (esc) {
|
|
esc = false;
|
|
continue;
|
|
}
|
|
else if (c == '\\') {
|
|
esc = true;
|
|
continue;
|
|
}
|
|
else if (s.substring(i, i + end.length) == end) {
|
|
return [ s.substring(0, i + end.length), s.substring(i + end.length) ];
|
|
}
|
|
}
|
|
|
|
if (q == '*')
|
|
throw 'Unterminated multiline comment';
|
|
|
|
return [ s, '' ];
|
|
}
|
|
|
|
function escapeString(s) {
|
|
return "'" + s.replace(/[\\\n']/g, '\\$&') + "';";
|
|
}
|
|
|
|
const keywords = [
|
|
'break',
|
|
'case',
|
|
'catch',
|
|
'const',
|
|
'continue',
|
|
'default',
|
|
'delete',
|
|
'elif',
|
|
'else',
|
|
'endfor',
|
|
'endfunction',
|
|
'endif',
|
|
'endwhile',
|
|
'false',
|
|
'for',
|
|
'function',
|
|
'if',
|
|
'in',
|
|
'let',
|
|
'null',
|
|
'return',
|
|
'switch',
|
|
'this',
|
|
'true',
|
|
'try',
|
|
'while'
|
|
];
|
|
|
|
const reserved = [
|
|
'await',
|
|
'class',
|
|
'debugger',
|
|
'enum',
|
|
'export',
|
|
'extends',
|
|
'finally',
|
|
'implements',
|
|
'import',
|
|
'instanceof',
|
|
'interface',
|
|
'new',
|
|
'package',
|
|
'private',
|
|
'protected',
|
|
'public',
|
|
'super',
|
|
'throw',
|
|
'typeof',
|
|
'var',
|
|
'void',
|
|
'with',
|
|
'yield'
|
|
];
|
|
|
|
function Transpiler(s, raw) {
|
|
this.source = s;
|
|
this.offset = 0;
|
|
this.tokens = [];
|
|
|
|
if (raw) {
|
|
this.state = 'identify_token';
|
|
this.block = 'block_statement';
|
|
}
|
|
else {
|
|
this.state = 'identify_block';
|
|
}
|
|
|
|
let token = null;
|
|
|
|
do {
|
|
token = this.parse();
|
|
|
|
switch (token.type) {
|
|
case '-}}':
|
|
case '-%}':
|
|
case '}}':
|
|
case '%}':
|
|
if (raw)
|
|
throw 'Unexpected token "' + token.type + '"';
|
|
|
|
break;
|
|
}
|
|
|
|
this.tokens.push(token);
|
|
}
|
|
while (token.type != 'eof');
|
|
}
|
|
|
|
Transpiler.prototype = {
|
|
parse: function() {
|
|
let m;
|
|
|
|
switch (this.state) {
|
|
case 'identify_block':
|
|
m = this.source.match(/^((?:.|\n)*?)((\{[{%#])(?:.|\n)*)$/);
|
|
|
|
if (m) {
|
|
switch (m[3]) {
|
|
case '{#':
|
|
this.state = 'block_comment';
|
|
break;
|
|
|
|
case '{{':
|
|
this.state = 'block_expression';
|
|
break;
|
|
|
|
case '{%':
|
|
this.state = 'block_statement';
|
|
break;
|
|
}
|
|
|
|
this.source = m[2];
|
|
|
|
return { type: 'text', value: escapeString(m[1]), prefix: '' };
|
|
}
|
|
else if (this.source.length) {
|
|
let t = { type: 'text', value: escapeString(this.source), prefix: '' };
|
|
|
|
this.source = '';
|
|
|
|
return t;
|
|
}
|
|
else {
|
|
return { type: 'eof', value: '', prefix: '' };
|
|
}
|
|
|
|
break;
|
|
|
|
case 'block_comment':
|
|
m = this.source.match(/^((?:.|\n)*?#\})((?:.|\n)*)$/);
|
|
|
|
if (!m)
|
|
throw 'Unterminated comment block';
|
|
|
|
this.source = m[2];
|
|
this.state = 'identify_block';
|
|
this.block = null;
|
|
|
|
return {
|
|
type: 'comment',
|
|
value: m[1].replace(/\*\}/g, '*\\}').replace(/^\{##/, '/**').replace(/^\{#/, '/*').replace(/#\}$/, '*/'),
|
|
prefix: ''
|
|
};
|
|
|
|
case 'block_expression':
|
|
this.state = 'identify_token';
|
|
this.block = 'expression';
|
|
this.source = this.source.replace(/^\{\{[+-]?/, '');
|
|
|
|
return this.parse();
|
|
|
|
case 'block_statement':
|
|
this.state = 'identify_token';
|
|
this.block = 'statement';
|
|
this.source = this.source.replace(/^\{%[+-]?/, '');
|
|
|
|
return this.parse();
|
|
|
|
case 'identify_token':
|
|
let t = this.parsetoken();
|
|
|
|
if ((this.block == 'expression' && (t.type == '-}}' || t.type == '}}')) ||
|
|
(this.block == 'statement' && (t.type == '-%}' || t.type == '%}'))) {
|
|
this.state = 'identify_block';
|
|
this.block = null;
|
|
|
|
return {
|
|
type: ';',
|
|
value: ';',
|
|
prefix: t.prefix
|
|
};
|
|
}
|
|
|
|
if (this.block == 'expression' && t.type == 'eof')
|
|
throw 'Unterminated expression block';
|
|
|
|
return t;
|
|
}
|
|
},
|
|
|
|
parsetoken: function() {
|
|
let token = this.source.match(/^((?:\s|\n)*)(-[%}]\}|<<=|>>=|===|!==|\.\.\.|\?\.\[|\?\.\(|[%}]\}|\/\*|\/\/|&&|[+&|^\/%*-=!<>]=|--|\+\+|<<|>>|\|\||=>|\?\.|[+=&|[\]\^{}:,~\/>!<%*()?;.'"-]|(\d+(?:\.\d+)?)|(\w+))((?:.|\n)*)$/);
|
|
let rv, r, t;
|
|
|
|
if (token) {
|
|
switch (token[2]) {
|
|
case '"':
|
|
case "'":
|
|
r = skipString(token[2] + token[5]);
|
|
rv = r[0];
|
|
t = 'string';
|
|
this.source = r[1];
|
|
break;
|
|
|
|
case '//':
|
|
case '/*':
|
|
r = skipComment(token[2] + token[5]);
|
|
rv = r[0];
|
|
t = 'comment';
|
|
this.source = r[1];
|
|
break;
|
|
|
|
case '/':
|
|
case '/=':
|
|
if (this.lastToken.match(/[(,=:[!&|?{};]/)) {
|
|
r = skipString(token[2] + token[5]);
|
|
rv = r[0];
|
|
t = 'regexp';
|
|
this.source = r[1];
|
|
}
|
|
else {
|
|
rv = token[2];
|
|
t = token[2];
|
|
this.source = token[5];
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
this.source = token[5];
|
|
|
|
if (token[3]) {
|
|
rv = token[3];
|
|
|
|
if (token[3].indexOf('.') != -1)
|
|
t = 'double';
|
|
else
|
|
t = 'number';
|
|
}
|
|
else if (token[4]) {
|
|
rv = token[4];
|
|
|
|
if (keywords.indexOf(token[4]) != -1) {
|
|
t = token[4];
|
|
}
|
|
else {
|
|
t = 'label';
|
|
|
|
if (reserved.indexOf(token[4]) != -1)
|
|
rv += '_';
|
|
}
|
|
}
|
|
else {
|
|
rv = token[2];
|
|
t = token[2];
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
this.lastToken = token[2];
|
|
|
|
return {
|
|
type: t,
|
|
value: rv,
|
|
prefix: token[1]
|
|
};
|
|
}
|
|
else if (this.source.match(/^\s*$/)) {
|
|
rv = this.source;
|
|
this.source = '';
|
|
|
|
return {
|
|
type: 'eof',
|
|
value: '',
|
|
prefix: rv
|
|
};
|
|
}
|
|
else {
|
|
throw 'Unrecognized character near [...' + this.source + ']';
|
|
}
|
|
},
|
|
|
|
next: function() {
|
|
let idx = this.offset++;
|
|
|
|
return this.tokens[Math.min(idx, this.tokens.length - 1)];
|
|
},
|
|
|
|
skip_statement: function(tokens, ends) {
|
|
let nest = 0;
|
|
|
|
while (true) {
|
|
let token = this.next();
|
|
|
|
if (token.type == 'eof') {
|
|
this.offset--;
|
|
|
|
break;
|
|
}
|
|
|
|
if (nest == 0 && ends.indexOf(token.type) != -1) {
|
|
this.offset--;
|
|
|
|
break;
|
|
}
|
|
|
|
switch (token.type) {
|
|
case '(':
|
|
case '[':
|
|
case '{':
|
|
nest++;
|
|
break;
|
|
|
|
case ')':
|
|
case ']':
|
|
case '}':
|
|
nest--;
|
|
break;
|
|
}
|
|
|
|
tokens.push(token);
|
|
|
|
if (token.type == ';')
|
|
break;
|
|
}
|
|
|
|
return tokens;
|
|
},
|
|
|
|
skip_paren: function(tokens) {
|
|
let token = this.next();
|
|
let depth = 0;
|
|
|
|
if (token.type != '(')
|
|
throw 'Unexpected token, expected "(", got "' + token.type + '"';
|
|
|
|
do {
|
|
tokens.push(token);
|
|
|
|
switch (token.type) {
|
|
case '(':
|
|
depth++;
|
|
break;
|
|
|
|
case ')':
|
|
depth--;
|
|
|
|
if (depth == 0)
|
|
return token;
|
|
|
|
break;
|
|
|
|
case 'eof':
|
|
throw 'Unexpected EOF';
|
|
}
|
|
|
|
token = this.next();
|
|
}
|
|
while (depth != 0);
|
|
},
|
|
|
|
assert_token: function(tokens, type) {
|
|
let token = this.next();
|
|
|
|
if (token.type != type)
|
|
throw 'Unexpected token, expected "' + type + '", got "' + token.type + '"';
|
|
|
|
tokens.push(token);
|
|
|
|
return tokens;
|
|
},
|
|
|
|
check_token: function(tokens, type) {
|
|
let token = this.next();
|
|
|
|
if (token.type != type) {
|
|
this.offset--;
|
|
|
|
return false;
|
|
}
|
|
|
|
tokens.push(token);
|
|
|
|
return true;
|
|
},
|
|
|
|
patch: function(tokens, type, value) {
|
|
tokens[tokens.length - 1].type = type;
|
|
tokens[tokens.length - 1].value = (value != null) ? value : type;
|
|
},
|
|
|
|
skip_block: function(tokens, ends) {
|
|
while (true) {
|
|
let off = tokens.length;
|
|
|
|
if (this.check_token(tokens, 'if')) {
|
|
this.skip_paren(tokens);
|
|
|
|
if (this.check_token(tokens, ':')) {
|
|
this.patch(tokens, '{');
|
|
|
|
this.skip_block(tokens, ['else', 'elif', 'endif']);
|
|
|
|
while (tokens[tokens.length - 1].type == 'elif') {
|
|
let elif = tokens.pop();
|
|
|
|
tokens.push(
|
|
{ type: '}', value: '}', prefix: '' },
|
|
{ type: 'else', value: 'else', prefix: elif.prefix },
|
|
{ type: 'if', value: 'if', prefix: ' ' }
|
|
);
|
|
|
|
this.skip_paren(tokens);
|
|
|
|
this.assert_token(tokens, ':');
|
|
this.patch(tokens, '{');
|
|
|
|
this.skip_block(tokens, ['elif', 'else', 'endif']);
|
|
}
|
|
|
|
if (tokens[tokens.length - 1].type == 'else') {
|
|
let else_ = tokens.pop();
|
|
|
|
tokens.push(
|
|
{ type: '}', value: '}', prefix: '' },
|
|
{ type: 'else', value: 'else', prefix: else_.prefix },
|
|
{ type: '{', value: '{', prefix: ' ' }
|
|
);
|
|
|
|
this.skip_block(tokens, ['endif']);
|
|
}
|
|
|
|
this.patch(tokens, '}');
|
|
}
|
|
else if (this.check_token(tokens, '{')) {
|
|
this.skip_block(tokens, ['}']);
|
|
|
|
if (!this.check_token(tokens, 'else'))
|
|
continue;
|
|
|
|
if (this.check_token(tokens, '{'))
|
|
this.skip_block(tokens, ['}']);
|
|
else
|
|
this.skip_statement(tokens, ends);
|
|
}
|
|
else {
|
|
this.skip_statement(tokens, ends);
|
|
}
|
|
}
|
|
else if (this.check_token(tokens, 'for')) {
|
|
let cond = [];
|
|
|
|
this.skip_paren(cond);
|
|
|
|
// Transform `for (x, y in ...)` into `for (x/*, y*/ in ...)`
|
|
if (cond.length > 5 &&
|
|
cond[1].type == 'label' &&
|
|
cond[2].type == ',' &&
|
|
cond[3].type == 'label' &&
|
|
cond[4].type == 'in') {
|
|
cond[2].type = 'comment';
|
|
cond[2].value = '/*' + cond[2].value;
|
|
cond[3].type = 'comment';
|
|
cond[3].value = cond[3].value + '*/';
|
|
}
|
|
|
|
// Transform `for (let x, y in ...)` into `for (let x/*, y*/ in ...)`
|
|
else if (cond.length > 6 &&
|
|
cond[1].type == 'let' &&
|
|
cond[2].type == 'label' &&
|
|
cond[3].type == ',' &&
|
|
cond[4].type == 'label' &&
|
|
cond[5].type == 'in') {
|
|
cond[3].type = 'comment';
|
|
cond[3].value = '/*' + cond[3].value;
|
|
cond[4].type = 'comment';
|
|
cond[4].value = cond[4].value + '*/';
|
|
}
|
|
|
|
tokens.push(...cond);
|
|
|
|
if (this.check_token(tokens, ':')) {
|
|
this.patch(tokens, '{');
|
|
this.skip_block(tokens, ['endfor']);
|
|
this.patch(tokens, '}');
|
|
}
|
|
else if (this.check_token(tokens, '{'))
|
|
this.skip_block(tokens, ['}']);
|
|
else
|
|
this.skip_statement(tokens, ends);
|
|
}
|
|
else if (this.check_token(tokens, 'while')) {
|
|
this.skip_paren(tokens);
|
|
|
|
if (this.check_token(tokens, ':')) {
|
|
this.patch(tokens, '{');
|
|
this.skip_block(tokens, ['endwhile']);
|
|
this.patch(tokens, '}');
|
|
}
|
|
else if (this.check_token(tokens, '{'))
|
|
this.skip_block(tokens, ['}']);
|
|
else
|
|
this.skip_statement(tokens, ends);
|
|
}
|
|
else if (this.check_token(tokens, 'function')) {
|
|
this.check_token(tokens, 'label');
|
|
this.skip_paren(tokens);
|
|
|
|
if (this.check_token(tokens, ':')) {
|
|
this.patch(tokens, '{');
|
|
this.skip_block(tokens, ['endfunction']);
|
|
this.patch(tokens, '}');
|
|
}
|
|
else if (this.check_token(tokens, '{'))
|
|
this.skip_block(tokens, ['}']);
|
|
}
|
|
else if (this.check_token(tokens, 'try')) {
|
|
this.assert_token(tokens, '{');
|
|
this.skip_block(tokens, ['}']);
|
|
this.assert_token(tokens, 'catch');
|
|
|
|
// Transform `try { ... } catch { ... }` into `try { ... } catch(e) { ... }`
|
|
if (this.tokens[this.offset].type == '(')
|
|
this.skip_paren(tokens);
|
|
else
|
|
tokens.push(
|
|
{ type: '(', value: '(', prefix: '' },
|
|
{ type: 'label', value: 'e', prefix: '' },
|
|
{ type: ')', value: ')', prefix: '' }
|
|
);
|
|
|
|
this.assert_token(tokens, '{');
|
|
this.skip_block(tokens, ['}']);
|
|
}
|
|
else if (this.check_token(tokens, 'switch')) {
|
|
this.skip_paren(tokens);
|
|
this.assert_token(tokens, '{');
|
|
this.skip_block(tokens, ['}']);
|
|
}
|
|
else if (this.check_token(tokens, '{')) {
|
|
this.skip_block(tokens, ['}']);
|
|
}
|
|
else if (this.check_token(tokens, 'text')) {
|
|
/* pass */
|
|
}
|
|
else if (this.check_token(tokens, 'comment')) {
|
|
/* pass */
|
|
}
|
|
else {
|
|
this.skip_statement(tokens, ends);
|
|
}
|
|
|
|
for (let type of ends)
|
|
if (this.check_token(tokens, type))
|
|
return tokens;
|
|
|
|
if (this.check_token([], 'eof'))
|
|
break;
|
|
}
|
|
|
|
throw 'Unexpected EOF';
|
|
},
|
|
|
|
transpile: function() {
|
|
let tokens = [];
|
|
|
|
this.skip_block(tokens, ['eof']);
|
|
|
|
return tokens.map(t => t.prefix + t.value).join('');
|
|
}
|
|
};
|
|
|
|
exports.handlers = {
|
|
beforeParse: function(e) {
|
|
let raw = !e.source.match(/\{[{%]/) || e.source.match(/^#!([a-z\/]*)ucode[ \t]+-[A-Z]*R/),
|
|
t = new Transpiler(e.source, raw);
|
|
|
|
e.source = t.transpile();
|
|
}
|
|
};
|