92dba9078c
The block-value rework routes value-position `{ … }` through the same
statement parser as every other block, so a destructure decl (and any
statement form) inside a value-bound block now parses, with the trailing
expression as the block's value. The `defer { … }` half was fixed
earlier (634cf9b). Regression: examples/0042-basic-block-value-destructure.sx.
Gates: zig build test, run_examples.sh -> 344 passed.
26 lines
769 B
Plaintext
26 lines
769 B
Plaintext
// A value-position block (`x := { … }`, a call argument, …) parses any
|
|
// statement form in its body — including a destructure decl — and yields its
|
|
// trailing expression as the value. Previously a braced value block routed
|
|
// through a restricted expression parser that rejected destructures with
|
|
// "expected ';'".
|
|
//
|
|
// Regression (issue 0065).
|
|
|
|
#import "modules/std.sx";
|
|
|
|
pair :: () -> (s32, s32) { (5, 7) }
|
|
|
|
main :: () -> s32 {
|
|
// destructure decl inside a value-bound block
|
|
sum := {
|
|
a, b := pair();
|
|
a + b // trailing expression → the block's value
|
|
};
|
|
print("sum: {}\n", sum); // 12
|
|
|
|
// block expression directly as a call argument
|
|
print("sq: {}\n", { x := 4; x * x }); // 16
|
|
|
|
sum
|
|
}
|