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feat: implement string interpolation with %(expr) syntax in compiler and core library

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Add lexer support for `TOKEN_INTERPOLATION` to split string literals at interpolation points, introduce `MAX_INTERPOLATION_NESTING` limit of 8, and compile interpolated strings by emitting calls to `String.interpolate_()`. Optimize list and map literal construction with new `addCore_` primitives to reduce stack churn. Update `String`, `List`, and `Map` `toString` methods in core library to use interpolation syntax, and migrate all benchmark and test files from explicit concatenation to interpolated strings.
This commit is contained in:
Bob Nystrom
2015-11-11 15:55:48 +00:00
parent a8961f817e
commit 920b3e2a32
41 changed files with 321 additions and 129 deletions
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test/language/method/subscript_operators.wren
+6 -6
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@@ -1,11 +1,11 @@
class Foo {
construct new() {}
[a] { "1-subscript " + a }
[a, b] { "2-subscript " + a + " " + b }
[a, b, c] { "3-subscript " + a + " " + b + " " + c }
[a]=(value) { "1-subscript setter " + a + " = " + value }
[a, b]=(value) { "2-subscript setter " + a + " " + b + " = " + value }
[a, b, c]=(value) { "3-subscript setter " + a + " " + b + " " + c + " = " + value }
[a] { "1-subscript %(a)" }
[a, b] { "2-subscript %(a) %(b)" }
[a, b, c] { "3-subscript %(a) %(b) %(c)" }
[a]=(value) { "1-subscript setter %(a) = %(value)" }
[a, b]=(value) { "2-subscript setter %(a) %(b) = %(value)" }
[a, b, c]=(value) { "3-subscript setter %(a) %(b) %(c) = %(value)" }
}
var foo = Foo.new()