From b0dc3c073f80fdca5ba2cab635c5cb2ae714e230 Mon Sep 17 00:00:00 2001 From: Michael Williamson Date: Sun, 31 Jan 2016 18:55:01 +0000 Subject: Support String.substring in C# backend --- .../couscous/backends/csharp/CsharpPrimitiveMethods.java | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'src/main') diff --git a/src/main/java/org/zwobble/couscous/backends/csharp/CsharpPrimitiveMethods.java b/src/main/java/org/zwobble/couscous/backends/csharp/CsharpPrimitiveMethods.java index 2bd39cb..1a956b7 100644 --- a/src/main/java/org/zwobble/couscous/backends/csharp/CsharpPrimitiveMethods.java +++ b/src/main/java/org/zwobble/couscous/backends/csharp/CsharpPrimitiveMethods.java @@ -13,7 +13,9 @@ import java.util.Map; import java.util.Optional; import static org.zwobble.couscous.ast.FieldAccessNode.fieldAccess; +import static org.zwobble.couscous.ast.MethodCallNode.methodCall; import static org.zwobble.couscous.ast.MethodCallNode.staticMethodCall; +import static org.zwobble.couscous.ast.Operations.integerSubtract; import static org.zwobble.couscous.util.ExtraLists.list; public class CsharpPrimitiveMethods { @@ -29,6 +31,17 @@ public class CsharpPrimitiveMethods { static { ImmutableMap.Builder methods = ImmutableMap.builder(); methods.put("length", (receiver, arguments) -> fieldAccess(receiver, "Length", IntegerValue.REF)); + methods.put("substring", (receiver, arguments) -> { + ExpressionNode startIndex = arguments.get(0); + ExpressionNode endIndex = arguments.get(1); + ExpressionNode length = integerSubtract(endIndex, startIndex); + // TODO: handle length going beyond end-of-string + return methodCall( + receiver, + "Substring", + list(startIndex, length), + StringValue.REF); + }); STRING_METHODS = methods.build(); } -- cgit v1.2.3