github.com/aws/aws-sdk-go-v2 v1.47.0: aws.String

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify github.com/aws/aws-sdk-go-v2/aws.String in pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0
Demonstrate these symbols/APIs:
  - github.com/aws/aws-sdk-go-v2/aws.String

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:aec56fc9c198489e110e8954e3e0fbe292ae6b1738f7b1e33d7dcfaaa720c4fa","contract":["aws.String returns a non-nil pointer to the provided string value","aws.String with empty string returns a non-nil pointer to empty string","aws.String returns distinct pointer addresses for separate calls with the same value","aws.String returned pointer can be dereferenced to recover the original string"],"goal":"verify github.com/aws/aws-sdk-go-v2/aws.String in pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0","kind":"HOW","packages":["pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0"],"schemaVersion":1,"symbols":["github.com/aws/aws-sdk-go-v2/aws.String"]},"contractCommand":["go","run","./test"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"golang","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"go","schemaVersion":1},"license":"MIT-0","packages":["pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0"],"schemaVersion":1,"subject":"pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0","symbols":["github.com/aws/aws-sdk-go-v2/aws.String"],"verifierAdapter":"golang@1"}

module sample

go 1.24

require github.com/aws/aws-sdk-go-v2 v1.47.0

require github.com/aws/smithy-go v1.28.1 // indirect

github.com/aws/aws-sdk-go-v2 v1.47.0 h1:0jsHallhJCeaU0Ko48c/3FK1ctOQ7NpzggxriJOQ8MQ=
github.com/aws/aws-sdk-go-v2 v1.47.0/go.mod h1:bttEH6JqnUL8LepvDVfdrds/fZ5bCIxzpe3abyUrhDU=
github.com/aws/smithy-go v1.28.1 h1:R/nXH00c8qcfCzQVELtRw+eLQWtzv+VAIEFJ1/xxXlQ=
github.com/aws/smithy-go v1.28.1/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=

package main

import (
	"fmt"

	"github.com/aws/aws-sdk-go-v2/aws"
)

func main() {
	val := "hello world"
	ptr := aws.String(val)

	fmt.Printf("Original string: %s\n", val)
	fmt.Printf("Pointer address: %p\n", ptr)
	fmt.Printf("Dereferenced: %s\n", *ptr)
}

{
  "schemaVersion": 1,
  "goal": "verify github.com/aws/aws-sdk-go-v2/aws.String in pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0",
  "kind": "HOW",
  "packages": [
    "pkg:golang/github.com/aws/aws-sdk-go-v2@v1.47.0"
  ],
  "symbols": [
    "github.com/aws/aws-sdk-go-v2/aws.String"
  ]
}

package main

import (
	"fmt"
	"os"

	"github.com/aws/aws-sdk-go-v2/aws"
)

func main() {
	// Assertion 1: aws.String returns a non-nil pointer to the provided string value
	strVal := "hello world"
	ptr := aws.String(strVal)
	if ptr == nil {
		fmt.Fprintln(os.Stderr, "Assertion failed: aws.String returned nil pointer")
		os.Exit(1)
	}
	if *ptr != strVal {
		fmt.Fprintf(os.Stderr, "Assertion failed: got %q, want %q\n", *ptr, strVal)
		os.Exit(1)
	}

	// Assertion 2: aws.String with empty string returns a non-nil pointer to empty string
	emptyPtr := aws.String("")
	if emptyPtr == nil {
		fmt.Fprintln(os.Stderr, "Assertion failed: aws.String(\"\") returned nil pointer")
		os.Exit(1)
	}
	if *emptyPtr != "" {
		fmt.Fprintf(os.Stderr, "Assertion failed: got %q, want empty string\n", *emptyPtr)
		os.Exit(1)
	}

	// Assertion 3: aws.String returns distinct pointer addresses for separate calls with the same value
	p1 := aws.String("constant")
	p2 := aws.String("constant")
	if p1 == p2 {
		fmt.Fprintln(os.Stderr, "Assertion failed: aws.String returned same pointer address for different calls")
		os.Exit(1)
	}
	if *p1 != *p2 || *p1 != "constant" {
		fmt.Fprintf(os.Stderr, "Assertion failed: dereferenced values mismatch: %q vs %q\n", *p1, *p2)
		os.Exit(1)
	}

	// Assertion 4: aws.String returned pointer can be dereferenced to recover the original string
	target := "aws-sdk-go-v2 test string"
	targetPtr := aws.String(target)
	recovered := *targetPtr
	if recovered != target {
		fmt.Fprintf(os.Stderr, "Assertion failed: recovered %q != original %q\n", recovered, target)
		os.Exit(1)
	}

	fmt.Println("All contract assertions passed.")
}