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Anonymous struct initializer syntax

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nub31
2025-09-09 16:53:06 +02:00
parent 5c3551fd8c
commit ce999e4c1b
2 changed files with 11 additions and 3 deletions
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4
example/src/main.nub
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@@ -15,8 +15,8 @@ struct Human
func main(args: []cstring): i64 func main(args: []cstring): i64
{ {
let x: Human = struct { let x: Human = {
name = struct { name = {
first = "bob" first = "bob"
last = "the builder" last = "the builder"
} }

10
src/compiler/NubLang/Parsing/Parser.cs
View File

@@ -455,6 +455,7 @@ public sealed class Parser
Symbol.Minus => new UnaryExpressionSyntax(GetTokens(startIndex), UnaryOperatorSyntax.Negate, ParsePrimaryExpression()), Symbol.Minus => new UnaryExpressionSyntax(GetTokens(startIndex), UnaryOperatorSyntax.Negate, ParsePrimaryExpression()),
Symbol.Bang => new UnaryExpressionSyntax(GetTokens(startIndex), UnaryOperatorSyntax.Invert, ParsePrimaryExpression()), Symbol.Bang => new UnaryExpressionSyntax(GetTokens(startIndex), UnaryOperatorSyntax.Invert, ParsePrimaryExpression()),
Symbol.OpenBracket => ParseArrayInitializer(startIndex), Symbol.OpenBracket => ParseArrayInitializer(startIndex),
Symbol.OpenBrace => new StructInitializerSyntax(GetTokens(startIndex), Optional<TypeSyntax>.Empty(), ParseStructInitializerBody()),
Symbol.Struct => ParseStructInitializer(startIndex), Symbol.Struct => ParseStructInitializer(startIndex),
_ => throw new ParseException(Diagnostic _ => throw new ParseException(Diagnostic
.Error($"Unexpected symbol '{symbolToken.Symbol}' in expression") .Error($"Unexpected symbol '{symbolToken.Symbol}' in expression")
@@ -570,6 +571,13 @@ public sealed class Parser
ExpectSymbol(Symbol.OpenBrace); ExpectSymbol(Symbol.OpenBrace);
} }
var initializers = ParseStructInitializerBody();
return new StructInitializerSyntax(GetTokens(startIndex), type, initializers);
}
private Dictionary<string, ExpressionSyntax> ParseStructInitializerBody()
{
Dictionary<string, ExpressionSyntax> initializers = []; Dictionary<string, ExpressionSyntax> initializers = [];
while (!TryExpectSymbol(Symbol.CloseBrace)) while (!TryExpectSymbol(Symbol.CloseBrace))
{ {
@@ -579,7 +587,7 @@ public sealed class Parser
initializers.Add(name, value); initializers.Add(name, value);
} }
return new StructInitializerSyntax(GetTokens(startIndex), type, initializers); return initializers;
} }
private BlockSyntax ParseBlock() private BlockSyntax ParseBlock()