IndexOfconst

IndexOfconst is a term used primarily in theoretical discussions of programming language tooling to denote a function or operation that locates the position of a constant within a sequence, a source stream, or a stream of tokens. It is not a standard built-in in major languages, but similar ideas appear in static analysis, code transformation, and editor tooling.

Conceptually, indexOfconst can be defined in two common contexts. In data collections, it represents a search for a constant value, returning the zero-based index of the first matching element, or a sentinel value if no match exists. In source-code processing or token streams, indexOfconst identifies the position of a constant literal or a typed constant token within a sequence of tokens or an abstract syntax tree, aiding analysis, refactoring, or linting.

Semantics vary by implementation. In runtime collections, matching typically uses value equality (and may or may not be type-strict). In token-level or AST contexts, matching targets a specific constant literal, such as numeric, string, or boolean literals, possibly filtered by type or scope.

Usage scenarios include detecting repeated constants for optimization, refactoring constant literals to named constants, or guiding transformation passes in compilers and linters. Performance is usually linear in the size of the input unless an index is precomputed.

See also: indexOf, const, tokenization, abstract syntax tree, static analysis.