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* uninit: track aggregate fills per part, sticky computed-index fills, &a[k] ↵Gravatar zinc 12 days3-0/+33
| | | | and method calls set the aggregate; fix test/example hits; docs
* definite assignment: reading a local before it is initialized is a compile ↵Gravatar zinc 12 days11-0/+117
| | | | | | error (spec 4.1.5, b.1.9) track linited per local alongside the ownership state; snapshots, exit records and joins carry it, and a join keeps a local set only when every reaching path set it. x = e, a declaration initializer, &x (out-parameter), a full array initializer, or using an aggregate as an address set a local; field and element writes do not set the aggregate. while/for bodies that may run zero times do not count; do/while does. compiler, runtime, std, actor and lsp sources initialize the locals the rule flagged; zc0 accepts = {} brace lists (zeroed). tests: tests/errors/uninit_*.zc, tests/conformance/4-statements/uninit_*.zc
* duplicate case labels are an error (b.2.15); unterminated string literal ↵Gravatar zinc 12 days8-15/+43
| | | | reported where it starts (b.2.11); an unreachable droppable cycle drops whole in one collection (6.15.3)
* constant expressions: c precedence and / % ^ (b.1.3); local const usable in ↵Gravatar zinc 12 days17-32/+47
| | | | constant expressions (b.1.7, b.2.16); zc0 matches
* prescan: guess an owned return only from a local declared from new/heap, not ↵Gravatar zinc 12 days1-0/+7
| | | | a global assigned one (fixes lsp self-check); xref baseline for the new writers
* tests: alias_scope expects the block-end message; plain_return now covers a ↵Gravatar zinc 12 days1-0/+8
| | | | forwarding owned return called early; direct owned return before its body is accepted
* analyzer: a .u (declared or inferred) function can't return a borrowed ↵Gravatar zinc 12 days4-0/+36
| | | | parameter or a value derived from one; fixtures
* std.Io.print/println take any mix of printable arguments (compiler expands ↵Gravatar zinc 12 days2-0/+20
| | | | per type); docs, conformance
* analyzer: a back link (container's owner stored into it) stays a plain ↵Gravatar zinc 12 days9-0/+68
| | | | reference, fixing a compile hang on a<->b and a leak; ending an owner kills its owned children too (fixes use after reassigning a container); escape fixtures
* analyzer: infer .u from returns of fresh objects in the body (prescan guess, ↵Gravatar zinc 12 days2-0/+28
| | | | then checked as .u)
* analyzer: an outer owner moved into a deeper container can take it back ↵Gravatar zinc 12 days6-0/+94
| | | | (loop-built lists); block-end frees name the owner (why 9) in messages and LSP related info
* rt: gc_drops finalizes a droppable value that reaches itself (a cycle, or a ↵Gravatar zinc 13 days2-0/+30
| | | | drop capturing its own value), one per collection, each once; before, each waited for the other forever; spec 6.15.3, drop_gc_cycle.zc, drop_gc_self_capture.zc, design doc lists what landed
* o3: an o3 function called from normal code as a receiver method (run.method) ↵Gravatar zinc 13 days1-0/+13
| | | | enters and leaves the region and fattens its result, like a direct call; spec 4.10.3, o3_receiver_method_enter.zc
* o3: break and continue out of an o3 { } block call rt.o3_leave for each ↵Gravatar zinc 13 days1-0/+28
| | | | block they leave (the loop records the o3 depth it began at), so the depth returns to 0 and pending collections and drops run; spec 4.10.3, o3_break_continue_leave.zc
* rt: memreport marks a leaked value whose drop never ran with (drop); spec ↵Gravatar zinc 13 days1-0/+15
| | | | 4.11, readme, memdebug_report_drop.zc
* destructors: nothing moves out of a value with a drop: pop on an array with ↵Gravatar zinc 13 days4-0/+48
| | | | a drop, or on an array field of a value with a drop, is error: a: can't move out of a value with drop (fields were already borrowed projections); spec 6.15.5, four conformance programs
* destructors: reassigning an m owner that still holds a value frees the old ↵Gravatar zinc 13 days3-2/+32
| | | | value first, running its drop (right side first, then the free, then the store), with hint: x: reassigning frees the old value; a new value that is part of the old one is an error; u, d and captured owners keep the leak error; the new value's size, leaf type and drop are recorded like a declaration's; spec 6.8.5, 6.15.2
* destructors: heap(v), drop(v, f) / v.drop(f) / v.drop = f, struct drop ↵Gravatar zinc 13 days14-0/+217
| | | | methods, collector drops after the sweep (once, resurrection), freed blocks forget their drop, temporaries drop at statement end with a hint, actor send check; o3: no collection inside a region (pending until the outermost exit), no drops set or ended inside o3; spec 3.11.6, 4.10.3-4, 6.15
* conformance: defer block form without a trailing semicolon, several ↵Gravatar zinc 13 days1-0/+23
| | | | statements and a local, at a return and at the end of the scope
* defer: any single statement (if/else, loops, switch, unchecked, unbounded), ↵Gravatar zinc 13 days1-0/+19
| | | | not just an expression or a block
* merge work/exactsize: exact-size heap boundsGravatar zinc 13 days10-2/+113
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| * rt: exact-size heap bounds; n, the words new asked for, lives in bits 32..62 ↵Gravatar zinc 13 days10-2/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | of p[-4] the bnd recipe and paylen read n instead of the power-of-two block: bnd: r6 = sub p 3; r6 = ld r6; r7 = xor p 0x2B7E1516; r6 = eq r6 r7; r7 = sub p 4; r7 = ld r7; r7 = shr r7 32; r7 = mul r7 q; r8 = mul i m; r8 = ltu r8 r7; r8 = xor r8 1; r0 = and r6 r8 paylen: return p[-4] >> 32 two loads instead of three; osize, bchk, release, recycle and the memdebug leak report all read n (rt.new(4) has length 4, rt.new(0) has 0). writers: new_raw and new_k set n; stack.h line 87 and tinyvm.ts (BigInt) set it on stack segments. release clears n when a block goes into quarantine (len 0, indexing traps; under memdebug bchk reports a use after free); every free-list path (fpush, mkblock, bdrop, recycle_leaf, balloc hold) rewrites the word as k << 16, and an array that grows gets a fresh block. a request over 2^31-1-HDR words stops in new_raw (oom), and the compiler only takes the new_k fast path for constant sizes that fit, so n is never truncated. bit users checked (all mask or preserve bits 32..62; none compares or copies the whole word): gc mark and sweep; release, free, recycle, recycle_leaf; share and own; isobj, quar, checkptr, obj_base; bclass and the bfree buddy merge; balloc, mkblock, fpush, funlink, heap_grow; frame_grow; stack_allocate in src/core/stack.h and src/js/tinyvm.ts; micro.c and core.c (check word only); the compiler's two p[-4] | F_INTERNAL writes (base.zc, builtins.zc). 32-bit ports: none (baremetal, wasm and micro use int64 Cell). tests: tests/programs/exactsize.zc (n-1/n for non-power-of-two sizes, new(0), packed bytes, recycle, grow, stack growth); 8-runtime: exact_size_bounds, pointer_index_n_minus_1, pointer_index_n_traps, pointer_index_n_traps_memdebug, new_zero_index_traps, new_too_big_traps, stale_index_after_free_traps, stale_index_after_free_memdebug. expectations changed: leak report shows n (tests/test.sh line 169, examples/learn/13-memdebug.out, docs/LEARN.md, 4-statements/memdebug_report_line.zc). programs adjusted to keep test.sh expectations: quarantine.zc (unbounded), bounds_heap.zc (rt.new(11)). spec 3.7.4 and 4.11 updated. fixpoint 402204 words (main 402197).
* | merge work/xref: stale known-line check for conformance and parityGravatar zinc 13 days1-9/+16
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| * conformance and parity: a known entry that passes again is stale and fails ↵Gravatar zinc 13 days1-9/+16
| | | | | | | | the run
* | Merge branch 'main' into work/specGravatar zinc 13 days1-1/+0
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| * zc0: u*x, m*x, d*x are products when u, m or d is a visible local or global ↵Gravatar zinc 13 days1-1/+0
| | | | | | | | (spec 1.6.3); redone from zc-spec's 2f2597b
* | len: len on a char* is an error with typecheck off too (appendix b.2.14)Gravatar zinc 13 days2-3/+2
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* | prototypes: parameters may be unnamed, int f(int, int*); (appendix b.2.13)Gravatar zinc 13 days2-1/+8
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* | as: the type after as is read greedily in both compilers; x as int * y is a ↵Gravatar zinc 13 days3-4/+8
| | | | | | | | syntax error (appendix b.2.12 settled, no compiler change)
* | lexer: a block comment that is never closed is 'unterminated comment' ↵Gravatar zinc 13 days3-3/+3
| | | | | | | | (appendix b.2.11)
* | bool: a value stored into a bool is normalised to 0 or 1 (appendix b.2.6)Gravatar zinc 13 days3-2/+9
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* | enum: a member is defined as soon as it is declared, so later values can ↵Gravatar zinc 13 days2-3/+6
| | | | | | | | name it (appendix b.2.2)
* | Merge branch 'main' into work/specGravatar zinc 13 days4-11/+31
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| * Merge branch 'main' into work/xrefGravatar zinc 13 days4-4/+4
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| | * merge bounds checkingGravatar zinc 13 days4-4/+4
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| | | * bounds checking: constant loop bound proof works, plain-op fixed-array ↵Gravatar zinc 13 days4-4/+4
| | | | | | | | | | | | | | | | check, docs (readme, spec 4.15 and friends, server, vscode), conformance and test.sh fixes, todo
| * | | zc0: integer literals as the compiler reads them (010 is 10, 0x is 0, values ↵Gravatar zinc 13 days1-11/+0
| | | | | | | | | | | | | | | | wrap modulo 2^64)
| * | | zc0: x as T reads a whole type (x as int*, x as char**)Gravatar zinc 13 days1-0/+15
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| * | | zc0: reject .u on a typed parameter with the compiler's messageGravatar zinc 13 days1-0/+6
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| * | | zc0: string literals have no length limit (the token text grows)Gravatar zinc 13 days1-0/+10
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* | | globals: an integer constant initializing a float or f32 global converts to ↵Gravatar zinc 13 days1-0/+9
| | | | | | | | | | | | float (float g = 2; is 2.0)
* | | Revert "zc0: read integer literals like the compiler: decimal with leading ↵Gravatar zinc 13 days1-0/+11
| | | | | | | | | | | | | | | | | | zeros, 0x hex, wrapping (appendix b.1.11)" This reverts commit 76fc2643d1df7da7c83f7b58fe7e8459f487b816.
* | | Revert "zc0: u*x, m*x, d*x are products when u, m or d is a visible local or ↵Gravatar zinc 13 days2-0/+2
| | | | | | | | | | | | | | | | | | global (spec 1.6.3)" This reverts commit 2f2597bd753fa04edc8cf51ffe9fd324965224d2.
* | | rt.zdiv: INT_MIN / -1 is INT_MIN and % is 0 in software division too, so zc0 ↵Gravatar zinc 13 days1-2/+0
| | | | | | | | | | | | programs agree with spec 3.4.3
* | | zc0: u*x, m*x, d*x are products when u, m or d is a visible local or global ↵Gravatar zinc 13 days2-2/+0
| | | | | | | | | | | | (spec 1.6.3)
* | | zc0: read integer literals like the compiler: decimal with leading zeros, 0x ↵Gravatar zinc 13 days1-11/+0
| | | | | | | | | | | | hex, wrapping (appendix b.1.11)
* | | conformance: appendix b items the spec body documents are class cGravatar zinc 13 days1-4/+4
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* | | ternary: an int side and a float side convert the int on its own path only ↵Gravatar zinc 13 days2-2/+9
| | | | | | | | | | | | (appendix b.2.5)
* | | include: written inside a function body is 'include is top level only' ↵Gravatar zinc 13 days2-2/+1
| | | | | | | | | | | | (appendix b.2.9)
* | | globals: a float or f32 global takes a float literal initializer (appendix ↵Gravatar zinc 13 days2-2/+9
| | | | | | | | | | | | b.2.7)
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