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pi-lens

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Real-time code feedback for pi — LSP, linters, formatters, type-checking, structural analysis & booboo

github.com/apmantza/pi-lens

apmantza/pi-lens

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# S978: Reserved identifiers should not be defined or declared id: no-reserved-identifiers name: Reserved Identifiers Should Not Be Defined severity: error category: maintainability defect_class: correctness inline_tier: blocking language: c message: "identifier {{NAME}} uses a reserved namespace — identifiers beginning with '_' + uppercase or '__' are reserved by the implementation" description: | The C standard reserves all identifiers that begin with an underscore followed by an uppercase letter or another underscore. Using them can cause conflicts with compiler/runtime internals. ✅ FIX: Rename without leading underscore(s) ```c int my_buffer_size = 1024; // GOOD ``` query: | [ (identifier) @NAME (#match? @NAME "^_[A-Z_]") (field_identifier) @NAME (#match? @NAME "^_[A-Z_]") (type_identifier) @NAME (#match? @NAME "^_[A-Z_]") ] metavars: - NAME tags: - maintainability - c - bad-practice - portability examples: bad: | int _MyVar = 1; // BAD - _ + uppercase int __internal = 2; // BAD - double underscore good: | int myVar = 1; // GOOD int internal = 2; // GOOD has_fix: true fix_action: rename_identifier