InputEdit

Overview

InputEdit describes one contiguous source change so trees can be updated and reparsed. Source: src/core/edit.zig.

Struct

pub const InputEdit = struct {
    start_byte: u32 = 0,
    old_end_byte: u32 = 0,
    new_end_byte: u32 = 0,
    start_point: Point = .{},
    old_end_point: Point = .{},
    new_end_point: Point = .{},
};

Methods

pub fn isInsertion(self: InputEdit) bool   // old_end == start
pub fn isDeletion(self: InputEdit) bool    // new_end == start
pub fn oldLength(self: InputEdit) u32
pub fn newLength(self: InputEdit) u32
pub fn editedByteCount(self: InputEdit) i64
pub fn translateByte(self: InputEdit, byte: u32) u32
pub fn translatePoint(self: InputEdit, point: Point) Point

Translation rules: positions before the start are untouched; positions at/after the old end shift by the length delta; positions inside clamp into the new span (points row-aware).

Related APIs

Tree (applyEdit helper), Point, Range; Editing Trees