46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
/**
|
|
* Calculates the size of a node excluding trailing punctuation.
|
|
*
|
|
* Computes the character length of a node's text representation, automatically
|
|
* subtracting trailing commas or semicolons from the size. This provides a more
|
|
* accurate measure of the actual content size, which is useful for sorting by
|
|
* line length.
|
|
*
|
|
* The function is widely used across all sorting rules when the sort type is
|
|
* set to 'line-length', ensuring consistent size calculation that ignores
|
|
* syntactic punctuation.
|
|
*
|
|
* @example
|
|
*
|
|
* ```ts
|
|
* // Node text: "const foo = 'bar';"
|
|
* rangeToDiff(node, sourceCode) // Returns: 17 (18 - 1 for semicolon)
|
|
* ```
|
|
*
|
|
* @example
|
|
*
|
|
* ```ts
|
|
* // Node text: "{ name: 'John', age: 30 },"
|
|
* rangeToDiff(node, sourceCode) // Returns: 26 (27 - 1 for comma)
|
|
* ```
|
|
*
|
|
* @example
|
|
*
|
|
* ```ts
|
|
* // Node text: "const value = 42"
|
|
* rangeToDiff(node, sourceCode) // Returns: 16 (no trailing punctuation)
|
|
* ```
|
|
*
|
|
* @param node - AST node to measure.
|
|
* @param sourceCode - ESLint source code object for text extraction.
|
|
* @returns Character count of the node excluding trailing comma or semicolon.
|
|
*/
|
|
function rangeToDiff(node, sourceCode) {
|
|
let nodeText = sourceCode.getText(node)
|
|
let endsWithCommaOrSemicolon =
|
|
nodeText.endsWith(';') || nodeText.endsWith(',')
|
|
let [from, to] = node.range
|
|
return to - from - (endsWithCommaOrSemicolon ? 1 : 0)
|
|
}
|
|
export { rangeToDiff }
|