Mike Gerwitz
6bc872eb38
And here's the thing that I've been dreading, partly because of the `macro_rules` issues involved. But, it's not too terrible. This module was already large and complex, and this just adds to it---it's in need of refactoring, but I want to be sure it's fully working and capable of handling NIR before I go spending time refactoring only to undo it. _This does not yet use trampolining in place of the call stack._ That'll come next; I just wanted to get the macro updated, the superstate generated, and tests passing. This does convert into the superstate (`ParseState::Super`), but then converts back to the original `ParseState` for BC with the existing composition-based delegation. That will go away and will then use the equivalent of CPS, using the superstate+`Parser` as a trampoline. This will require an explicit stack via `Context`, like XIRF. And it will allow for tail calls, with respect to parser delegation, if I decide it's worth doing. The root problem is that source XML requires recursive parsing (for expressions and statements like `<section>`), which results in recursive data structures (`ParseState` enum variants). Resolving this with boxing is not appropriate, because that puts heap indirection in an extremely hot code path, and may also inhibit the aggressive optimizations that I need Rust to perform to optimize away the majority of the lowering pipeline. Once this is sorted out, this should be the last big thing for the parser. This unfortunately has been a nagging and looming issue for months, that I was hoping to avoid, and in retrospect that was naive. DEV-7145 |
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design/tpl | ||
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progtest | ||
rater | ||
src | ||
tamer | ||
test | ||
tools | ||
.gitignore | ||
.gitlab-ci.yml | ||
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COPYING | ||
COPYING.FDL | ||
HACKING | ||
Makefile.am | ||
README.md | ||
RELEASES.md | ||
VERSION.in | ||
bootstrap | ||
c1map.xsd | ||
configure.ac | ||
package-lock.json |
README.md
TAME
TAME is The Algebraic Metalanguage, a programming language and system of tools designed to aid in the development, understanding, and maintenance of systems performing numerous calculations on a complex graph of dependencies, conditions, and a large number of inputs.
This system was developed at Ryan Specialty Group (formerly LoVullo Associates) to handle the complexity of comparative insurance rating systems. It is a domain-specific language (DSL) that itself encourages, through the use of templates, the creation of sub-DSLs. TAME itself is at heart a calculator—processing only numerical input and output—driven by quantifiers as predicates. Calculations and quantifiers are written declaratively without concern for order of execution.
The system has powerful dependency resolution and data flow capabilities.
TAME consists of a macro processor (implementing a metalanguage), numerous compilers for various targets (JavaScript, HTML documentation and debugging environment, LaTeX, and others), linkers, and supporting tools. The input grammar is XML, and the majority of the project (including the macro processor, compilers, and linkers) is written in a combination of XSLT and Rust.
TAMER
Due to performance requirements, this project is currently being reimplemented in Rust. That project can be found in the tamer/ directory.
Documentation
Compiled documentation for the latest release is available via our GitLab mirror, which uses the same build pipeline as we do on our internal GitLab instance. Available formats are:
Getting Started
To get started, make sure Saxon version 9 or later is available and its path
set as SAXON_CP
; that the path to hoxsl is set via HOXSL
; and then run
the bootstrap
script:
$ export SAXON_CP=/path/to/saxon9he.jar
$ export HOXSL=/path/to/hoxsl/root
$ ./boostrap
Running Test Cases
To run the test cases, invoke make check
(or its alias, make test
).
Testing Core Features
In order to run tests located at core/test/core/**
, a supporting environment
is required. (e.g. mega rater). Inside a supporting rater, either check out a
submodule containing the core tests, or temporarily add them into the
submodule.
Build the core test suite summary page using:
$ make rater/core/test/core/suite.html
Visit the summary page in a web browser and click the Calculate Premium button. If all test cases pass, it will yield a value of $1.
Hacking
Information for TAME developers can be found in the file HACKING
.
License
This program 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.
This program 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.