49 lines
1.7 KiB
Markdown
49 lines
1.7 KiB
Markdown
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# php2go
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Convert PHP source code to Go by AST walking.
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The goal is to produce idiomatic, maintainable Go code as part of a one-off conversion. This is not generally possible for highly dynamic PHP code, that may require manual fixups.
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## Progress
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[X] Convert some small programs
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[X] All functions return `(type, error)`
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- [X] Convert `throw` to err return
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- [ ] Elide error return for functions that cannot throw
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- ?? Could be a standalone Go refactoring tool
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- [ ] Non-leaf function calls need to check + bubble errors
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[ ] Comprehensive coverage of all AST node types
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- [ ] Expr
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- [ ] Binary
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- [ ] Scalar
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- [ ] ...
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- [ ] Convert instanceof for Exception types to Go1.13 `errors.Is`
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[ ] Array handling
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- [ ] Infer whether to use slice/map for PHP array
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- [ ] Infer whether map use should be order-preserving
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[ ] Multi-file programs
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- [ ] Include/Require
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[ ] Namespaces
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[ ] Generators
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[X] Convert top-level calls to `init()`/`main()`
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- *Currently always `init`*
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[ ] Class/object transformations
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- [X] Convert `new X` constructor calls to `NewX`
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- [ ] Convert class inheritance to interfaces with interface assertion
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- [ ] Traits / `use`
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- [ ] Abstract methods
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[ ] Type inference
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- [ ] Parse extra types from phpdoc blocks
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[ ] Infer whether to declare variable (`var` / `:=`) or reuse (`=`)
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- [ ] Track current visibility scope
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[ ] Standard library transformations
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- [ ] Track golang package imports
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- [ ] Handle conflicts between golang stdlib packages / local variable names
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[ ] PHP Superglobal transformations
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- [ ] `$_SERVER['argv']` to os.Args
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- [ ] `$_GET['name']` to r.FormValue('name')
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[ ] Closures
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- [ ] Handle value/reference captures
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[X] Variadic function parameters
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[ ] Convert wordpress / mediawiki / symfony
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