[PR #1257] Add Object.toMixin() method #976

New Issue

2025-12-30T01:28:03+01:00

adam commented

2025-12-30 01:28:03 +01:00

📋 Pull Request Information

Original PR: https://github.com/apple/pkl/pull/1257
Author: @Mikulas
Created: 10/27/2025
Status: 🔄 Open

Base: main ← Head: tomixin

📝 Commits (1)

84e495a Add Object.toMixin() method

📊 Changes

7 files changed (+1055 additions, -5 deletions)

View changed files

➕ pkl-core/src/main/java/org/pkl/core/ast/ObjectToMixinNode.java (+150 -0)
➕ pkl-core/src/main/java/org/pkl/core/stdlib/base/ObjectNodes.java (+41 -0)
➕ pkl-core/src/test/files/LanguageSnippetTests/input/api/objectToMixin.pkl (+339 -0)
➕ pkl-core/src/test/files/LanguageSnippetTests/output/api/objectToMixin.pcf (+218 -0)
📝 pkl-core/src/test/files/LanguageSnippetTests/output/api/reflectedDeclaration.pcf (+290 -4)
📝 pkl-core/src/test/kotlin/org/pkl/core/ReplServerTest.kt (+2 -0)
📝 stdlib/base.pkl (+15 -1)

📄 Description

Adds a toMixin() method to the Object class that converts an Object
into a Mixin function applicable via the pipe operator (|>).

A generic toMixin() method cannot be implemented in user land, so this
implementation provides a native method that properly handles:

Property merging and overriding
Element appending with correct index offsetting
Entry merging with proper key handling
Nested object replacement vs amendment semantics

Implementation uses the source Object's enclosing frame to ensure
proper module context for type resolution during member evaluation.

edit: updated from Dynamic to Object

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/apple/pkl/pull/1257 **Author:** [@Mikulas](https://github.com/Mikulas) **Created:** 10/27/2025 **Status:** 🔄 Open **Base:** `main` ← **Head:** `tomixin` --- ### 📝 Commits (1) - [`84e495a`](https://github.com/apple/pkl/commit/84e495a638cf71c479f478fa2e224cd27255520a) Add Object.toMixin() method ### 📊 Changes **7 files changed** (+1055 additions, -5 deletions) <details> <summary>View changed files</summary> ➕ `pkl-core/src/main/java/org/pkl/core/ast/ObjectToMixinNode.java` (+150 -0) ➕ `pkl-core/src/main/java/org/pkl/core/stdlib/base/ObjectNodes.java` (+41 -0) ➕ `pkl-core/src/test/files/LanguageSnippetTests/input/api/objectToMixin.pkl` (+339 -0) ➕ `pkl-core/src/test/files/LanguageSnippetTests/output/api/objectToMixin.pcf` (+218 -0) 📝 `pkl-core/src/test/files/LanguageSnippetTests/output/api/reflectedDeclaration.pcf` (+290 -4) 📝 `pkl-core/src/test/kotlin/org/pkl/core/ReplServerTest.kt` (+2 -0) 📝 `stdlib/base.pkl` (+15 -1) </details> ### 📄 Description Adds a `toMixin()` method to the `Object` class that converts an `Object` into a `Mixin` function applicable via the pipe operator (`|>`). A generic `toMixin()` method cannot be implemented in user land, so this implementation provides a native method that properly handles: - Property merging and overriding - Element appending with correct index offsetting - Entry merging with proper key handling - Nested object replacement vs amendment semantics Implementation uses the source `Object`'s enclosing frame to ensure proper module context for type resolution during member evaluation. **edit:** updated from `Dynamic` to `Object` --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

adam added the pull-request label 2025-12-30 01:28:03 +01:00

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Reference: starred/pkl#976

[PR #1257] Add Object.toMixin() method #976

📋 Pull Request Information

📝 Commits (1)

📊 Changes

📄 Description

[PR #1257] Add `Object.toMixin()` method #976