trace自动生成

简述

运行某个节点 Kernel 的一个元素，并展示每一步。

描述

Runs one element of a node’s Kernel and shows every step of it; with no context fields, under the last frame’s context.

请求示例

{"id": 1, "op": "trace", "node": "gray"}

属性

名称	类型	必需	说明
`node`	`string`	是	the node
`at`	`[x, y] \| [x, y, z]`	否	the element in a grid or a volume; or `element`
`element`	`integer`	否	the element in rows, or a scan’s step
`time`	`number`	否	session time in seconds; 0 when not given
`rate`	`number`	否	the sound clock, frames a second, which Kernels read as rate()
`queued`	`number`	否	the samples (per channel) the sound device holds and has not played, which Kernels read as queued(); 0 when not given
`pointer`	`[x, y]`	否	the pointer in the output’s pixels from its top left, as a Kernel’s `pointer()` reads it
`down`	`bool`	否	whether the pointer is pressed, what `pointer_down()` reads
`buttons`	`[integer]`	否	buttons held: 0 left, 1 right, 2 middle, then a pad’s
`wheel`	`[x, y]`	否	the scroll for this frame
`sticks`	`[[x, y]]`	否	a pad’s left stick, right stick and triggers, up to three pairs
`pads`	`integer`	否	how many pads are connected, what `pads()` reads
`keys`	`[integer]`	否	keys held, by the browser’s codes
`text`	`string`	否	the characters typed since the last evaluation, what `typed()` reads; 32 at most
`window`	`[w, h]`	否	the window in pixels; else the session’s
`scale`	`number`	否	the window’s scale factor, with `window`; 1 when not given

应答

kernel, at, bindings, results, calls, and when the element failed, fault: its message, the function it failed in with that function’s bindings, and the operation’s path, line and column