struct Vec2 { x: u8, y: u8 }
var pos: Vec2 = Vec2 { x: 100, y: 50 }
on frame {
pos = Vec2 { x: pos.x + 1, y: pos.y }
}
- AST: new \`Expr::StructLiteral(name, fields, span)\` variant
- Parser: in expression position, \`Ident {\` enters struct-literal
mode when the new \`restrict_struct_literals\` flag is off.
\`if\`/\`while\`/\`for\` conditions set the flag so the \`{\` keeps
going to the following block. Condition contexts can still use
struct literals by parenthesizing them.
- Analyzer: validates that the struct type exists, each named field
belongs to it, and each field value has a compatible type.
- IR lowering: desugars \`var = StructLiteral { ... }\` (both in
assignments and variable initializers) into per-field StoreVar
operations against the analyzer-synthesized \`var.field\`
variables. No IR type for struct values is needed.
- AST codegen: no-op (legacy path).
- examples/structs_enums_for.ne now uses a struct literal for the
initial \`player\` state instead of per-field assignments.
https://claude.ai/code/session_01W6eQFStA66EuMKHUFo2rx3
Adds a \`for NAME in START..END { BODY }\` half-open range loop:
for i in 0..8 {
total += arr[i]
}
- Lexer: \`for\`, \`in\` keywords and the \`..\` range operator
- AST: new \`Statement::For\` variant with var/start/end/body
- Parser: \`parse_for\` after \`while\` / \`loop\`
- Analyzer: registers the loop variable as a u8 symbol for the body
(restoring any shadowed outer symbol afterwards), allocates it via
the normal RAM allocator, and tracks it as "used"
- IR lowering: desugars to \`var = start; while var < end { body;
var = var + 1 }\` using a \`for_step\` continue-edge block so
\`continue\` properly increments the index
- AST codegen: no-op (legacy path doesn't need for loops)
- Tests: parse + full-pipeline integration
https://claude.ai/code/session_01W6eQFStA66EuMKHUFo2rx3
Documents the \`enum Name { Variant, ... }\` syntax and adds
\`--dump-ir\` and \`--use-ast\` to the CLI flag table. Also adds
an integration test covering enum-variant-as-condition and variant
assignment through the full compile pipeline.
https://claude.ai/code/session_01W6eQFStA66EuMKHUFo2rx3
