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boot: defer, str.bytes()

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defer runs when its scope ends and before return, break and continue leave it,
newest first, and sees only the variables declared before it. Not allowed
inside a defer: defer, return, break, continue.

boot.sh: 14 passed, 0 failed, 8 skipped.
This commit is contained in:
Nexoniarz 2026-10-25 18:47:24 +01:00
commit 84693aa655
3 changed files with 96 additions and 9 deletions
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11
boot/parser.fch
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@ -283,7 +283,16 @@ fn parseStatement(ptr[Parser] p) -> ast.Node {
if k == "{" {
return parseBlock(p)
}
if k == "fn" || k == "struct" || k == "import" || k == "defer" || k == "link" {
if k == "defer" {
s := node(p, "defer")
next(p)
if at(p, "defer") {
fail(p, cur(p), "defer inside defer is not allowed")
}
s.kids.push(parseStatement(p))
return s
}
if k == "fn" || k == "struct" || k == "import" || k == "link" {
fail(p, cur(p), "'" + k + "' can't be used here in the self-hosted compiler")
}