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Copy Interpolated Value

Copy Interpolated Value is an intention action that resolves all variable references in a Kotlin string interpolation and copies the final computed string directly to your clipboard — without running the code.

How It Works

Place the caret anywhere inside a property whose initializer is a string template with interpolation, then invoke Alt+Enter (or Option+Return on macOS) and select Copy interpolated value.

The plugin evaluates all $variable and ${expression} references statically and copies the resulting string to the clipboard.

const val NAME = "André"
const val SURNAME = "Monteiro"
const val FULL_NAME = "$NAME $SURNAME"
// Invoke on FULL_NAME → "André Monteiro" is copied to clipboard

Availability

The intention is only shown when:

  • The caret is inside a property declaration (top-level or member)
  • The initializer is a string template with interpolation ($var or ${expr})
  • All referenced variables can be statically resolved (e.g. const val chains)

It will not appear for:

  • Plain string literals with no interpolation: "Hello, World!"
  • Strings with only escape sequences: "line1\nline2"
  • Properties with unresolvable references: "Hello, $UNKNOWN"
  • Local variables inside function bodies
  • Properties without an initializer

Limitations

Compile-time constants only

Only values resolvable at compile time are supported.

  • ✅ const val chains
  • ✅ Nested interpolations (interpolating an interpolated value)
  • ❌ Runtime-computed values
  • ❌ Results of non-const functions
  • ❌ Mutable variables (var)

Example — not supported

fun greeting() = "Hello"
const val MSG = "${greeting()} world"
// Intention will not be available — greeting() is not a compile-time constant

K2 Compatibility

Fully Compatible

Works with both K1 (classic) and K2 Kotlin compiler modes.

  • ✅ Kotlin K1 (Classic Compiler)
  • ✅ Kotlin K2 (New Compiler)