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| author | Michael Williamson <mike@zwobble.org> | 2023-11-02 23:22:05 +0000 |
|---|---|---|
| committer | Michael Williamson <mike@zwobble.org> | 2023-11-02 23:22:05 +0000 |
| commit | 72779bc8003f07742a94f34853f2be94004a61ee (patch) | |
| tree | f951c9af6b6a3f237e070a8cfa9e5b5c053b8f67 /src/main/java | |
| parent | a3fc3f4b0c552443f85766fe3e057a9fcbca8cec (diff) | |
Parse unit literals
Diffstat (limited to 'src/main/java')
3 files changed, 15 insertions, 0 deletions
diff --git a/src/main/java/org/shedlang/compiler/parser/Parser.java b/src/main/java/org/shedlang/compiler/parser/Parser.java index 272c66c0..a1318300 100644 --- a/src/main/java/org/shedlang/compiler/parser/Parser.java +++ b/src/main/java/org/shedlang/compiler/parser/Parser.java @@ -817,6 +817,8 @@ public class Parser { case KEYWORD_WHEN -> parseWhen(tokens); + case KEYWORD_UNIT -> parseUnitLiteral(tokens); + case STRING -> parseStringLiteral(tokens); case SYMBOL_HASH_PAREN_OPEN -> parseTuple(tokens); @@ -1160,6 +1162,17 @@ public class Parser { return new UntypedTypeLevelReferenceNode(name, source); } + private static UntypedExpressionNode parseUnitLiteral(TokenIterator<TokenType> tokens) { + var start = tokens.position(); + + tokens.skip(TokenType.KEYWORD_UNIT); + + var end = tokens.position(); + var source = start.to(end); + + return new UntypedUnitLiteralNode(source); + } + private static Visibility parseVisibility(TokenIterator<TokenType> tokens) { var isPublic = tokens.trySkip(TokenType.KEYWORD_PUB); return isPublic ? Visibility.PUBLIC : Visibility.PRIVATE; diff --git a/src/main/java/org/shedlang/compiler/parser/TokenType.java b/src/main/java/org/shedlang/compiler/parser/TokenType.java index fd9ae5e8..5365c7de 100644 --- a/src/main/java/org/shedlang/compiler/parser/TokenType.java +++ b/src/main/java/org/shedlang/compiler/parser/TokenType.java @@ -26,6 +26,7 @@ public enum TokenType { KEYWORD_SUMTYPE, KEYWORD_TRUE, KEYWORD_TRY, + KEYWORD_UNIT, KEYWORD_VAL, KEYWORD_VAR, KEYWORD_WHEN, diff --git a/src/main/java/org/shedlang/compiler/parser/Tokeniser.java b/src/main/java/org/shedlang/compiler/parser/Tokeniser.java index 574f7c7f..202f852e 100644 --- a/src/main/java/org/shedlang/compiler/parser/Tokeniser.java +++ b/src/main/java/org/shedlang/compiler/parser/Tokeniser.java @@ -30,6 +30,7 @@ public class Tokeniser { Map.entry("sumtype", TokenType.KEYWORD_SUMTYPE), Map.entry("true", TokenType.KEYWORD_TRUE), Map.entry("try", TokenType.KEYWORD_TRY), + Map.entry("unit", TokenType.KEYWORD_UNIT), Map.entry("val", TokenType.KEYWORD_VAL), Map.entry("var", TokenType.KEYWORD_VAR), Map.entry("when", TokenType.KEYWORD_WHEN), |