ahl

Rust for rustaceans

Ch 1
Uses of multiple lifetime bounds within a single function or type eg a string split iterator

Ch 2
Use trait associated types rather than trait genetics except if you expect multiple implementations of the trait for a given type

You can use impl trait as the value for an associated type and the compiler will infer the specific type from use eg the return from IntoIterator::into_iter()

ahl

{
  "CatalogItems": [
    {
      "CatalogItemId": "OR-FWTFFXJ",
      "Dimensions": "OUTPOST_RACK",
      "EC2Capacities": [
        {
          "Family": "c5",
          "MaxSize": "24xlarge",
          "Quantity": "1"

ahl

/// This function needs to necessarily be conservative. We'd much prefer a
/// false negative than a false positive.
fn schemas_mutually_exclusive(a: &Schema, b: &Schema) -> bool {
    match (a, b) {
        // If either matches nothing then they are exclusive.
        (Schema::Bool(false), _) => true,
        (_, Schema::Bool(false)) => true,
        // If either matches anything then they are not exclusive.
        (Schema::Bool(true), _) => false,
        (_, Schema::Bool(true)) => false,

ahl

while True:
    c = getch.getch()
    if c == 'j':
        left()
    elif c == 'k':
        right()
    elif c == 'c':
        break

ahl

white = digitalio.DigitalInOut(board.C1)
black = digitalio.DigitalInOut(board.C0)
black.direction = digitalio.Direction.OUTPUT
black.value = True
white.direction = digitalio.Direction.OUTPUT
white.value = True


def tap(v):
    tnext = time.time()

ahl

{
  "NextToken": null,
  "PodCatalogItems": [
    {
      "AvailableEC2Capacities": [
        {
          "Family": "m5",
          "MaxSize": "24xlarge",
          "Quantity": "6"
        },

ahl

#!/usr/bin/env python

import uuid
import json

workflow = {
  "source_id": "271537071011674362",
  "version": "1",
  "workflow": {
    "name": "spam me please",

ahl

SELECT status.updateTime, personName.givenName, personName.familyName FROM google_hire.list_applications AS app
 JOIN google_hire.list_candidates AS can
 ON app.candidate = can.name
 WHERE app.tenant = 'my_tenant'
 AND app.filter='status.state=ACTIVE'
 AND can.tenant = 'my_tenant'
 AND can.filter='applications.status.state=ACTIVE'
 AND job = (SELECT name FROM google_hire.list_jobs
   WHERE tenant='my_tenant'
   AND filter='state=OPEN'

ahl

({ http_event }) => {
  var moment = require("moment-timezone-with-data.js");

  return {
    status_code: 200,
    headers: { "Content-Type": "application/json" },
    body: {
      "text": api.run("this.eng_active", {})
        .map((x) => moment(x.updateTime).format("YYYY MMMM Do ")
            + x.givenName +  " " + x.familyName)

ahl

SELECT * FROM google_hire.list_applications AS app
 JOIN google_hire.list_candidates AS can
 ON app.candidate = can.name
 WHERE app.tenant = 'my_tenant'
 AND app.filter='status.state=ACTIVE'
 AND can.tenant = 'my_tenant'
 AND can.filter='applications.status.state=ACTIVE'
 AND job = (SELECT name FROM google_hire.list_jobs
   WHERE tenant='my_tenant'
   AND filter='state=OPEN'