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Alok SwamyandClaude Opus 4.6
532b439063
Add bare-bracket rejection to Parser#expression in strict2 mode, so that
`['var']` is disallowed and `self['var']` is the required syntax.
- Add `Expression::SELF` constant ('self')
- Add `Parser#reject_bare_brackets` option, checked in `expression`
- Add `ParseContext#reject_bare_brackets?` and `force_reject_bare_brackets`
- Add `VariableLookupDrop` for `self['var']` scope-chain lookups
- Add `Variable#==` for rewriter state comparison
- Update `Context#find_variable` to return `VariableLookupDrop` for `self`
Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
39 lines
1.0 KiB
Ruby
39 lines
1.0 KiB
Ruby
# frozen_string_literal: true
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module Liquid
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# @liquid_public_docs
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# @liquid_type object
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# @liquid_name self
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# @liquid_summary
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# Provides access to variables through the current scope chain.
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# @liquid_description
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# The `self` object resolves variables through the normal lookup hierarchy
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# (local > file > global) without exposing filters, interrupts, errors,
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# or other context internals. It's used when bare bracket notation
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# (`['variable']`) needs to be replaced with an explicit variable lookup.
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#
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# If `self` is explicitly assigned as a local variable (e.g. `{% assign self = 'value' %}`),
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# then the local value takes precedence over the `self` object.
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# @liquid_access global
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class SelfDrop < Drop
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def initialize(context)
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super()
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@context = context
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end
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def [](key)
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@context.find_variable(key)
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rescue UndefinedVariable
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nil
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end
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def key?(key)
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@context.variable_defined?(key)
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end
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def to_liquid
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self
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end
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end
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end
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