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| author | Charlie Stanton <charlie@shtanton.xyz> | 2024-03-30 15:20:07 +0000 |
|---|---|---|
| committer | Charlie Stanton <charlie@shtanton.xyz> | 2024-03-30 15:20:07 +0000 |
| commit | 7a9f00b9bd39173494ea734b899a9f099dafb306 (patch) | |
| tree | a169451bcba8c424ade1ff5cdac29eef6818d8d8 /subex/parse.go | |
| parent | 9d82785f46949151b783d83648b39ce9ba40c615 (diff) | |
| download | stred-go-7a9f00b9bd39173494ea734b899a9f099dafb306.tar | |
Add array value destructure
Diffstat (limited to 'subex/parse.go')
| -rw-r--r-- | subex/parse.go | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/subex/parse.go b/subex/parse.go index f1565f5..98821fd 100644 --- a/subex/parse.go +++ b/subex/parse.go @@ -34,13 +34,18 @@ const ( NoneStructure Structure = iota StringStructure ArrayStructure + ArrayValuesStructure ) -func (s Structure) innerType() Type { +func (s Structure) String() string { switch s { + case NoneStructure: + return "-" case StringStructure: - return RuneType + return "~" case ArrayStructure: - return ValueType + return "@" + case ArrayValuesStructure: + return ":" default: panic("Invalid structure") } @@ -321,6 +326,9 @@ func parseDestructure(l RuneReader, destructure Structure, inType Type) (lhs Sub case ArrayStructure: innerInType = ValueType expectedInType = ValueType + case ArrayValuesStructure: + innerInType = ValueType + expectedInType = ValueType default: panic("Invalid structure") } @@ -345,6 +353,9 @@ func parseDestructure(l RuneReader, destructure Structure, inType Type) (lhs Sub case '@': structure = ArrayStructure expectedInnerOutType = ValueType + case ':': + structure = ArrayValuesStructure + expectedInnerOutType = ValueType default: panic("Missing matching destructure") } @@ -358,6 +369,8 @@ func parseDestructure(l RuneReader, destructure Structure, inType Type) (lhs Sub outType = ValueType case ArrayStructure: outType = ValueType + case ArrayValuesStructure: + outType = ValueType } lhs = SubexASTDestructure { @@ -385,6 +398,8 @@ func parseSubex(l RuneReader, minPower int, inType Type) (lhs SubexAST, outType lhs, outType = parseDestructure(l, StringStructure, inType) case '@': lhs, outType = parseDestructure(l, ArrayStructure, inType) + case ':': + lhs, outType = parseDestructure(l, ArrayValuesStructure, inType) // TODO // case '[': // rangeParts := parseRangeSubex(l) |