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This note outlines a principled way to meta-programming in Scala. It tries to combine the best ideas from LMS and Scala macros in a minimalistic design.
LMS: Types matter. Inputs, outputs and transformations should all be statically typed.
Macros: Quotations are ultimately more easy to deal with than implicit-based type-lifting
LMS: Some of the most interesting and powerful applications of meta-programming
| /** | |
| * Pretty prints a Scala value similar to its source represention. | |
| * Particularly useful for case classes. | |
| * @param a - The value to pretty print. | |
| * @param indentSize - Number of spaces for each indent. | |
| * @param maxElementWidth - Largest element size before wrapping. | |
| * @param depth - Initial depth to pretty print indents. | |
| * @return | |
| */ | |
| private def prettyPrint(a: Any, indentSize: Int = 2, maxElementWidth: Int = 30, depth: Int = 0): String = { |
