| ------------------------------------------------------------------------------- |
| -- Copyright (c) 2006-2013 Sierra Wireless and others. |
| -- |
| -- All rights reserved. |
| -- |
| -- This program and the accompanying materials are made available |
| -- under the terms of the Eclipse Public License v1.0 which |
| -- accompanies this distribution, and is available at |
| -- http://www.eclipse.org/legal/epl-v10.html |
| -- |
| -- This program and the accompanying materials are also made available |
| -- under the terms of the MIT public license which accompanies this |
| -- distribution, and is available at http://www.lua.org/license.html |
| -- |
| -- Contributors: |
| -- Kevin Kin-Foo - API and implementation |
| -- |
| ------------------------------------------------------------------------------- |
| |
| require 'metalua.compiler' |
| -- |
| -- Ecapsulates funcion mlc.luastring_to_ast in order to protect call and parse |
| -- error string when an error occurs. |
| -- |
| -- @param src string containg Lua code to evaluate |
| -- @return AST of table type, as returned by mlc.luastring_to_ast. Contains an |
| -- error when AST generation fails |
| -- |
| function getast(src) |
| local status, result = pcall(mlc.luastring_to_ast, src) |
| if status then return result else |
| local line, column, offset = result:match '%(l.(%d+), c.(%d+), k.(%d+)%)' |
| local filename = result :match '^([^:]+)' |
| local msg = result :match 'line %d+, char %d+: (.-)\n' |
| local li = {line, column, offset, filename} |
| return {tag='Error', lineinfo={first=li, last=li}, msg} |
| end |
| end |
