php

README

php

Archived: This project only supported PHP 5, and never matured beyond a basic parser and AST visualizer. Since I lost interest, it has fallen into disrepair, beyond the more conventional bugs.

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Parser for PHP written in Go

See this post for an introduction.

Test console:

Project Status

This project is under heavy development, though some pieces are more or less stable. Listed here are components that in progress or are ideas for future development

Feature	Status
Lexer and Parser	mostly complete. there are probably a few gaps still
Scoping	complete for simple cases. probably some gaps still, most notably that conditional definitions are treated as if they are always defined
Code search and symbol lookup	basic idea implemented, many many details missing
Code formatting	basic idea implemented, formatting needs to narrow down to PSR-2
Transpilation to Go	basic idea implemented, need follow through with more node types
Type inferencing	not begun
Dead code analysis	basic idea implemented, but only for some types of code. Also, this suffers from the same caveats as scoping

Project Components

Directory	Description
php/ast	(abstract syntax tree) describes the nodes in PHP as parsed by the parser
php/ast/printer	prints an ast back to source code
php/cmd	a tool used to debug the parser
php/lexer	reads a stream of tokens from source code
php/parser	the core parser
php/passes	tools and packages related to modifying or analyzing PHP code (heavily a work in progress)
php/passes/togo	transpiler
php/passes/deadcode	dead code analyzer
php/query	tools and packages related to analyzing and finding things in PHP code (heavily a work in progress)
php/testdata	simple examples of PHP that must parse with no errors for tests to pass
php/token	describes the tokens read by the lexer