slovo/docs/language/STANDARD_RUNTIME.md
2026-05-22 12:21:49 +02:00

30 KiB

Slovo Standard Runtime Catalog

Status: standard-runtime catalog through exp-101 over the released exp-14 conformance baseline. The latest Slovo experimental alpha release is exp-101, Standard Vec String Option And Transform Helpers Alpha. exp-29, exp-30, exp-32, exp-33, and exp-35 through exp-93 add no compiler-known std.* names; exp-31 adds exactly one checked numeric conversion name; exp-34 adds exactly one strict bool parse name; exp-94 adds exactly four concrete (vec i64) vector names; exp-95 through exp-98 add no compiler-known std.* names; and exp-99 adds exactly four concrete (vec string) vector names. exp-100 and exp-101 add no new compiler-known std.* names.

This document catalogs promoted compiler-known std.* operations only. It does not add source syntax, runtime APIs, standard library functions, manifest schema versions, ABI/layout promises, runtime headers/libraries, or beta maturity.

Post-1.0.0-beta.1 main-branch work adds the first runtime resource foundation calls for read-only text file handles. These calls use the existing concrete result families and are intended for a future 1.0.0-beta.2 bundle. Handles are positive opaque i32 process-local tokens, not stable file descriptors or ABI values.

The exp-era catalog is closed to names promoted through exp-101. exp-29, exp-30, exp-32, exp-33, and exp-35 through exp-93 add no new standard-runtime operation names. exp-32/exp-39/exp-56/exp-57 std/math.slo helpers, exp-33/exp-35 std/result.slo helpers, exp-36 std/option.slo helpers, exp-37 std/time.slo wrappers, exp-38 std/random.slo, std/env.slo, and std/fs.slo wrappers, exp-48 std/string.slo and std/num.slo facades, exp-49 std/io.slo facades, exp-52 std/process.slo facades, and exp-53/55 std/cli.slo facades are source-authored functions, not compiler-known std.* operations. exp-44 through exp-55 add explicit source-search and discovery gates for existing source modules; exp-56 through exp-93 add language/source-helper slices. exp-94 adds std.vec.i64.empty, std.vec.i64.append, std.vec.i64.len, and std.vec.i64.index; exp-95 broadens option language/source-helper support only and adds no new catalog entries; exp-99 adds std.vec.string.empty, std.vec.string.append, std.vec.string.len, and std.vec.string.index; exp-100 broadens option language/source-helper support only and adds no new catalog entries; exp-101 broadens vec-string source-helper support only and adds no new catalog entries. Legacy compatibility aliases such as print_i32, print_string, print_bool, and string_len are not std.* names and are therefore excluded from this catalog. Legacy unqualified result helper names remain compatibility syntax; the preferred source-level result helper names are the std.result.* names cataloged below.

Catalog

Operation Signature Release Fixture Behavior/trap/result note Manifest note Deferrals
std.io.print_i32 (i32) -> unit v1.5 examples/supported/standard-runtime.slo Prints the i32 using the legacy stdout behavior and returns builtin unit. Uses existing standard-runtime usage recording if present; no schema change. Unit/composite printing, formatting controls, stable helper ABI/layout.
std.io.print_string (string) -> unit v1.5 examples/supported/standard-runtime.slo Prints the string using the legacy stdout behavior and returns builtin unit. Uses existing standard-runtime usage recording if present; no schema change. String formatting controls, Unicode policy beyond existing string bytes, stable helper ABI/layout.
std.io.print_bool (bool) -> unit v1.5 examples/supported/standard-runtime.slo Prints true or false using the legacy stdout behavior and returns builtin unit. Uses existing standard-runtime usage recording if present; no schema change. Broader value printing and formatting controls.
std.io.print_f64 (f64) -> unit exp-20 examples/supported/f64-numeric-primitive.slo Prints one implementation-owned finite f64 textual representation plus a newline and returns builtin unit. Uses existing standard-runtime usage recording if present; no schema change. Formatting controls, stable printed digits, NaN/infinity policy, stable helper ABI/layout.
std.io.print_i64 (i64) -> unit exp-21 examples/supported/i64-numeric-primitive.slo Prints one signed decimal i64 textual representation plus a newline and returns builtin unit. Uses existing standard-runtime usage recording if present; no schema change. Formatting controls, unsigned/narrower integer printing, stable helper ABI/layout.
std.num.i32_to_i64 (i32) -> i64 exp-22 examples/supported/numeric-widening-conversions.slo Explicitly widens a signed i32 value to the corresponding signed i64 value. Uses existing standard-runtime usage recording if present; no schema change. Implicit promotion, narrowing conversions beyond exp-23 checked i64-to-i32 result, cast syntax, stable helper ABI/layout.
std.num.i32_to_f64 (i32) -> f64 exp-22 examples/supported/numeric-widening-conversions.slo Explicitly converts a signed i32 value to a finite f64 value representing that integer. Uses existing standard-runtime usage recording if present; no schema change. Implicit promotion, rounding-mode controls, generic casts, stable helper ABI/layout.
std.num.i64_to_f64 (i64) -> f64 exp-22 examples/supported/numeric-widening-conversions.slo Explicitly converts a signed i64 value to a finite f64; exact preservation is not promised for every i64. Uses existing standard-runtime usage recording if present; no schema change. Implicit promotion, checked lossy f64 conversion APIs, rounding-mode controls, stable helper ABI/layout.
std.num.i64_to_i32_result (i64) -> (result i32 i32) exp-23 examples/supported/checked-i64-to-i32-conversion.slo Returns ok value when the signed i64 input is in the signed i32 range, otherwise returns err 1; range failure does not trap. Uses existing standard-runtime usage recording if present; no schema change. Other narrowing conversions beyond exp-27 checked f64-to-i32 result, cast syntax, std.num.cast, checked cast generics, stable helper ABI/layout.
std.num.i32_to_string (i32) -> string exp-24 examples/supported/integer-to-string.slo Returns the decimal signed ASCII string for the input i32; negative values include -, non-negative values have no leading +. Uses existing standard-runtime usage recording if present; no schema change. f64 formatting beyond exp-26 finite decimal text, parse APIs beyond the released i32/i64/f64/bool result calls, locale/base/radix/grouping/padding controls, generic format/display, implicit conversion, stable helper ABI/layout/ownership.
std.num.i64_to_string (i64) -> string exp-24 examples/supported/integer-to-string.slo Returns the decimal signed ASCII string for the input i64; negative values include -, non-negative values have no leading +. Uses existing standard-runtime usage recording if present; no schema change. f64 formatting beyond exp-26 finite decimal text, parse APIs beyond the released i32/i64/f64/bool result calls, locale/base/radix/grouping/padding controls, generic format/display, implicit conversion, stable helper ABI/layout/ownership.
std.num.f64_to_string (f64) -> string exp-26 examples/supported/f64-to-string.slo Returns finite decimal ASCII string text for promoted finite f64 inputs; fixture values are 0.0, 3.5, -1.5, and 10.0. Uses existing standard-runtime usage recording if present; no schema change. f32, f64 parse, generic parse/format/display/interpolation, locale/base/radix/grouping/padding/precision controls, stable NaN/infinity text, implicit conversion, stable helper ABI/layout/ownership.
std.num.f64_to_i32_result (f64) -> (result i32 i32) exp-27 examples/supported/f64-to-i32-result.slo Returns ok value only when the f64 input is finite, exactly integral, and in the signed i32 range; returns err 1 for non-finite, fractional, or out-of-range input without trapping. Uses existing standard-runtime usage recording if present; no schema change. Unchecked f64-to-i32, casts/cast syntax, generic cast_checked, f32, unsigned/narrower integer families, f64 parse, mixed numeric arithmetic, numeric containers, stable helper ABI/layout/ownership.
std.num.f64_to_i64_result (f64) -> (result i64 i32) exp-31 examples/supported/f64-to-i64-result.slo Returns ok value only when the f64 input is finite, exactly integral, and in the signed i64 range; returns err 1 for non-finite, fractional, or out-of-range input without trapping. Conservative fixture values avoid pinning every f64/i64 edge. Uses existing standard-runtime usage recording if present; no schema change. Unchecked casts, unchecked f64-to-i64, cast syntax, generic cast_checked, f32, unsigned/narrower integer families, mixed numeric arithmetic, broad math, stable helper ABI/layout/ownership.
std.string.len (string) -> i32 v1.5 examples/supported/standard-runtime.slo Returns the existing decoded byte-count length used by legacy string_len. Uses existing standard-runtime usage recording if present; no schema change. Unicode scalar/grapheme length, slicing, indexing, stable string ABI/layout.
std.string.concat (string, string) -> string exp-1 examples/supported/owned-string-concat.slo Returns an immutable runtime-owned string; allocation failure traps as slovo runtime error: string allocation failed. Uses existing standard-runtime usage recording if present; no concat-specific schema field. Mutable strings, string containers, user-visible allocation/deallocation, stable string ABI/layout.
std.vec.i32.empty () -> (vec i32) exp-2 examples/supported/vec-i32.slo Returns an empty immutable runtime-owned (vec i32). Uses existing standard-runtime usage recording if present; no vector-specific schema field. Generic vectors, element families beyond i32, i64, and string, vector mutation, stable vector ABI/layout.
std.vec.i32.append ((vec i32), i32) -> (vec i32) exp-2 examples/supported/vec-i32.slo Returns a new immutable vector containing the input elements and appended value; allocation failure traps with the exp-2 vector allocation message. Uses existing standard-runtime usage recording if present; no vector-specific schema field. Mutation, push, capacity APIs, user deallocation, stable vector ABI/layout.
std.vec.i32.len ((vec i32)) -> i32 exp-2 examples/supported/vec-i32.slo Returns vector length as i32. Uses existing standard-runtime usage recording if present; no vector-specific schema field. Generic length APIs and stable vector ABI/layout.
std.vec.i32.index ((vec i32), i32) -> i32 exp-2 examples/supported/vec-i32.slo Returns the indexed value; out-of-bounds access traps with the exp-2 vector bounds message. Uses existing standard-runtime usage recording if present; no vector-specific schema field. Slices/views, iterators, mutation, stable vector ABI/layout.
std.vec.i64.empty () -> (vec i64) exp-94 examples/supported/vec-i64.slo Returns an empty immutable runtime-owned (vec i64). Uses existing standard-runtime usage recording if present; no vector-specific schema field. Generic vectors, element families beyond i32, i64, and string, vector mutation, stable vector ABI/layout.
std.vec.i64.append ((vec i64), i64) -> (vec i64) exp-94 examples/supported/vec-i64.slo Returns a new immutable vector containing the input elements and appended value; allocation failure traps with the existing vector allocation message. Uses existing standard-runtime usage recording if present; no vector-specific schema field. Mutation, push, capacity APIs, user deallocation, stable vector ABI/layout.
std.vec.i64.len ((vec i64)) -> i32 exp-94 examples/supported/vec-i64.slo Returns vector length as i32. Uses existing standard-runtime usage recording if present; no vector-specific schema field. Generic length APIs and stable vector ABI/layout.
std.vec.i64.index ((vec i64), i32) -> i64 exp-94 examples/supported/vec-i64.slo Returns the indexed value; out-of-bounds access traps with the existing vector bounds message. Uses existing standard-runtime usage recording if present; no vector-specific schema field. Slices/views, iterators, mutation, stable vector ABI/layout.
std.vec.string.empty () -> (vec string) exp-99 examples/supported/vec-string.slo Returns an empty immutable runtime-owned (vec string). Uses existing standard-runtime usage recording if present; no vector-specific schema field. Generic vectors, element families beyond i32, i64, and string, vector mutation, stable vector ABI/layout.
std.vec.string.append ((vec string), string) -> (vec string) exp-99 examples/supported/vec-string.slo Returns a new immutable vector containing the input elements and appended string; allocation failure traps with the existing vector allocation message. Uses existing standard-runtime usage recording if present; no vector-specific schema field. Mutation, push, capacity APIs, user deallocation, stable vector ABI/layout.
std.vec.string.len ((vec string)) -> i32 exp-99 examples/supported/vec-string.slo Returns vector length as i32. Uses existing standard-runtime usage recording if present; no vector-specific schema field. Generic length APIs and stable vector ABI/layout.
std.vec.string.index ((vec string), i32) -> string exp-99 examples/supported/vec-string.slo Returns the indexed value; out-of-bounds access traps with the existing vector bounds message. Uses existing standard-runtime usage recording if present; no vector-specific schema field. Slices/views, iterators, mutation, stable vector ABI/layout.
std.io.eprint (string) -> unit exp-3 examples/supported/host-io.slo Writes the string to stderr without appending a newline and returns builtin unit. Uses existing standard-runtime usage recording if present; no host-IO schema bump. Formatting controls, terminal APIs, async IO, stable helper ABI/layout.
std.process.argc () -> i32 exp-3 examples/supported/host-io.slo Returns process argument count as i32. Uses existing standard-runtime usage recording if present; no process-specific schema field. Rich process APIs, argv encoding guarantees, stable helper ABI/layout.
std.process.arg (i32) -> string exp-3 examples/supported/host-io.slo Returns zero-based process argument; out-of-range access traps as slovo runtime error: process argument index out of bounds. Uses existing standard-runtime usage recording if present; no process-specific schema field. Result-based errors are separate exp-10 names; rich process APIs remain deferred.
std.env.get (string) -> string exp-3 examples/supported/host-io.slo Returns environment value, or the empty string when missing. Uses existing standard-runtime usage recording if present; no env-specific schema field. Result-based errors are separate exp-10 names; env mutation and enumeration remain deferred.
std.fs.read_text (string) -> string exp-3 examples/supported/host-io.slo Returns file text; host read failure traps with the exp-3 file read message. Uses existing standard-runtime usage recording if present; no fs-specific schema field. Result-based errors are separate exp-10 names; binary, directory, streaming, async APIs remain deferred.
std.fs.write_text (string, string) -> i32 exp-3 examples/supported/host-io.slo Writes text, returning 0 on success and 1 on host failure. Uses existing standard-runtime usage recording if present; no fs-specific schema field. Result-based errors are separate exp-10 names; binary, directory, streaming, async APIs remain deferred.
std.time.monotonic_ms () -> i32 exp-8 examples/supported/time-sleep.slo Returns non-negative host monotonic elapsed milliseconds with implementation-owned epoch; host unavailability may trap as slovo runtime error: monotonic time unavailable. Uses existing standard-runtime usage recording if present; no time-specific schema field. Wall-clock/calendar/timezone APIs, high-resolution timers, scheduling guarantees, stable clock ABI/layout.
std.time.sleep_ms (i32) -> unit exp-8 examples/supported/time-sleep.slo Sleeps for a non-negative millisecond duration; 0 is valid. Negative runtime values trap as slovo runtime error: sleep_ms negative duration; host sleep failure may trap as slovo runtime error: sleep failed. Uses existing standard-runtime usage recording if present; no time-specific schema field. Positive-duration conformance timing assertions, async timers, cancellation, scheduling guarantees.
std.process.arg_result (i32) -> (result string i32) exp-10 examples/supported/host-io-result.slo Returns ok with argument text when in range, or err 1 when out of range. Uses existing standard-runtime usage recording if present; no exp-10-specific schema field. Rich host error ADTs, platform codes, process API breadth, stable helper ABI/layout.
std.env.get_result (string) -> (result string i32) exp-10 examples/supported/host-io-result.slo Returns ok with environment value when present, or err 1 when missing. Uses existing standard-runtime usage recording if present; no exp-10-specific schema field. Rich host error ADTs, env mutation/enumeration, platform codes.
std.fs.read_text_result (string) -> (result string i32) exp-10 examples/supported/host-io-result.slo Returns ok with file contents on success, or err 1 on ordinary host read failure. Uses existing standard-runtime usage recording if present; no exp-10-specific schema field. Binary, directory, streaming, async APIs, rich host error ADTs.
std.fs.write_text_result (string, string) -> (result i32 i32) exp-10 examples/supported/host-io-result.slo Returns ok 0 on success, or err 1 on ordinary host write failure. Uses existing standard-runtime usage recording if present; no exp-10-specific schema field. Binary, directory, streaming, async APIs, rich host error ADTs.
std.fs.exists (string) -> bool post-1.0.0-beta.1 main examples/projects/std-layout-local-fs Returns true when host metadata lookup succeeds for the path, otherwise false. Uses existing standard-runtime usage recording if present; no schema change. Rich host errors, symlink policy, permissions detail, stable platform metadata model.
std.fs.is_file (string) -> bool post-1.0.0-beta.1 main examples/projects/std-layout-local-fs Returns true when the path exists and host metadata classifies it as a regular file. Uses existing standard-runtime usage recording if present; no schema change. Rich metadata, symlink policy, stable platform file-kind model.
std.fs.is_dir (string) -> bool post-1.0.0-beta.1 main examples/projects/std-layout-local-fs Returns true when the path exists and host metadata classifies it as a directory. Uses existing standard-runtime usage recording if present; no schema change. Directory handles, enumeration, recursive traversal, symlink policy, stable platform file-kind model.
std.fs.remove_file_result (string) -> (result i32 i32) post-1.0.0-beta.1 main examples/projects/std-layout-local-fs Removes one file; success returns ok 0, while ordinary host failure returns err 1. Uses existing standard-runtime usage recording if present; no schema change. Recursive removal, directory removal, rich host errors, platform-specific error codes.
std.fs.create_dir_result (string) -> (result i32 i32) post-1.0.0-beta.1 main examples/projects/std-layout-local-fs Creates one directory; success returns ok 0, while existing paths or ordinary host failure return err 1. Uses existing standard-runtime usage recording if present; no schema change. Recursive creation, permissions/mode policy, directory handles, rich host errors, platform-specific error codes.
std.fs.open_text_read_result (string) -> (result i32 i32) post-1.0.0-beta.1 main examples/projects/std-layout-local-fs Opens a text file for read-only resource-handle flow; success returns ok handle where handle is a positive opaque process-local i32, and ordinary open or handle-table failure returns err 1. Uses existing standard-runtime usage recording if present; no schema change. Writable handles, binary IO, directory handles, process handles, sockets, async IO, platform-specific error codes, stable handle ABI/layout.
std.fs.read_open_text_result (i32) -> (result string i32) post-1.0.0-beta.1 main examples/projects/std-layout-local-fs Reads remaining text from an open read handle; success returns ok text, while invalid, closed, or failed reads return err 1. Uses existing standard-runtime usage recording if present; no schema change. Chunked reads, seek, buffering controls, binary IO, async IO, platform-specific error codes, stable handle ABI/layout.
std.fs.close_result (i32) -> (result i32 i32) post-1.0.0-beta.1 main examples/projects/std-layout-local-fs Closes an open resource handle; success returns ok 0, while invalid, closed, or failed close operations return err 1. Uses existing standard-runtime usage recording if present; no schema change. Finalizers, destructors, affine ownership, automatic cleanup, stable handle ABI/layout.
std.random.i32 () -> i32 exp-11 examples/supported/random.slo Returns a non-negative implementation-owned random i32; unavailable randomness traps as slovo runtime error: random i32 unavailable. Uses existing standard-runtime usage recording if present; no randomness-specific schema field. Seed APIs, crypto/security promises, ranges, bytes, floats, UUIDs, stable RNG ABI/layout.
std.io.read_stdin_result () -> (result string i32) exp-12 examples/supported/stdin-result.slo Reads remaining stdin as text; success returns ok text, ordinary EOF with no bytes returns ok "", ordinary host/input failure returns err 1. Uses existing standard-runtime usage recording if present; no stdin-specific schema field. Trap stdin, line APIs, prompts, terminal mode, binary/streaming/async stdin.
std.string.parse_i32_result (string) -> (result i32 i32) exp-13 examples/supported/string-parse-i32-result.slo Parses an entire ASCII decimal signed i32; success returns ok value, ordinary parse failure returns err 1. Uses existing standard-runtime usage recording if present; no parse-specific schema field. Trap parse, floats/bools/bytes, trimming, locale/radix/underscore/plus parsing, rich parse errors, Unicode digits, slicing/indexing.
std.string.parse_i64_result (string) -> (result i64 i32) exp-25 examples/supported/string-parse-i64-result.slo Parses an entire non-empty ASCII decimal signed i64 with optional leading -; success returns ok value, parse failure or out-of-range returns err 1 without trapping. Uses existing standard-runtime usage recording if present; no parse-specific schema field. Generic parse, leading plus, trimming, locale/radix/base-prefix/underscore parsing, rich parse errors, Unicode digits, stable helper ABI/layout/ownership.
std.string.parse_f64_result (string) -> (result f64 i32) exp-28 examples/supported/string-parse-f64-result.slo Parses complete finite ASCII decimal f64 text in the narrow -?digits.digits shape; success returns ok value, ordinary parse failure, non-finite text, unsupported leading/trailing characters, or out-of-domain input returns err 1 without trapping. Uses existing standard-runtime usage recording if present; no parse-specific schema field. Generic parse, trap-based f64 parse, leading +, exponent notation, .5, 5., bool parse beyond exp-34 exact lowercase true/false, string/bytes parse, locale parsing, Unicode digits, underscores, rich parse errors, stable helper ABI/layout/ownership, result genericity, f64 containers.
std.string.parse_bool_result (string) -> (result bool i32) exp-34 examples/supported/string-parse-bool-result.slo Parses exactly complete ASCII lowercase true or false; success returns ok true or ok false, and ordinary parse failure returns err 1 without trapping. Uses existing standard-runtime usage recording if present; no parse-specific schema field. Generic parse, trap-based bool parse, bool parsing beyond exact lowercase true/false, string/bytes parse, trimming, case-insensitive parsing, locale/Unicode parsing, numeric boolean parsing, rich parse errors, stable helper ABI/layout/ownership.
std.result.is_ok ((result i32 i32)) -> bool; ((result i64 i32)) -> bool; ((result string i32)) -> bool; ((result f64 i32)) -> bool; ((result bool i32)) -> bool exp-15, extended exp-25, exp-28, and exp-34 examples/supported/result-helpers.slo; examples/supported/string-parse-i64-result.slo; examples/supported/string-parse-f64-result.slo; examples/supported/string-parse-bool-result.slo Preferred source-level ok-tag observer for the supported concrete result families. No result-helper-specific manifest field; schema version remains 1. Generic results, result payload families beyond the listed concrete families, option helpers, mapping/chaining, stable helper ABI/layout.
std.result.is_err ((result i32 i32)) -> bool; ((result i64 i32)) -> bool; ((result string i32)) -> bool; ((result f64 i32)) -> bool; ((result bool i32)) -> bool exp-15, extended exp-25, exp-28, and exp-34 examples/supported/result-helpers.slo; examples/supported/string-parse-i64-result.slo; examples/supported/string-parse-f64-result.slo; examples/supported/string-parse-bool-result.slo Preferred source-level err-tag observer for the supported concrete result families. No result-helper-specific manifest field; schema version remains 1. Generic results, result payload families beyond the listed concrete families, option helpers, mapping/chaining, stable helper ABI/layout.
std.result.unwrap_ok ((result i32 i32)) -> i32; ((result i64 i32)) -> i64; ((result string i32)) -> string; ((result f64 i32)) -> f64; ((result bool i32)) -> bool exp-15, extended exp-25, exp-28, and exp-34 examples/supported/result-helpers.slo; examples/supported/string-parse-i64-result.slo; examples/supported/string-parse-f64-result.slo; examples/supported/string-parse-bool-result.slo Preferred source-level ok-payload extraction; traps with the existing unwrap_ok on err behavior when applied to err. No result-helper-specific manifest field; schema version remains 1. Generic results, result payload families beyond the listed concrete families, generic std.result.unwrap_or, mapping/chaining, stable helper ABI/layout.
std.result.unwrap_err ((result i32 i32)) -> i32; ((result i64 i32)) -> i32; ((result string i32)) -> i32; ((result f64 i32)) -> i32; ((result bool i32)) -> i32 exp-15, extended exp-25, exp-28, and exp-34 examples/supported/result-helpers.slo; examples/supported/string-parse-i64-result.slo; examples/supported/string-parse-f64-result.slo; examples/supported/string-parse-bool-result.slo Preferred source-level err-payload extraction; traps with the existing unwrap_err on ok behavior when applied to ok. No result-helper-specific manifest field; schema version remains 1. Generic results, result payload families beyond the listed concrete families, generic std.result.unwrap_or, mapping/chaining, stable helper ABI/layout.

Manifest Rule

The artifact manifest remains slovo.artifact-manifest schema version 1. If the existing implementation records standard-runtime usage, it records the names above through the same additive structure. If it does not, this catalog does not introduce one-off metadata for any operation or release.

Deferrals

This catalog does not define broad standard-library modules, importable standard packages, stable runtime helper names, C ABI symbols, headers, libraries, semantic versioning, deprecation policy, or beta compatibility. Those remain future beta work unless a later explicit contract promotes them.

For the current exp-37 language baseline, it also does not define automatic standard-library imports, compiler-loaded std/ source, source replacement of cataloged compiler-known calls, f32, generic parse or format APIs, f64 formatting beyond std.num.f64_to_string : (f64) -> string finite decimal text, locale/base/ radix/grouping/padding/precision controls, generic format/display/ interpolation traits, implicit conversions, stable NaN/infinity text, mixed numeric arithmetic/comparison, unchecked f64-to-i32, unchecked f64-to-i64, unchecked casts, casts/cast syntax, generic cast_checked, narrowing or checked numeric conversions beyond std.num.i64_to_i32_result, std.num.f64_to_i32_result, and std.num.f64_to_i64_result, unsigned or narrower integer families, broad math beyond the source-authored exp-32 std/math.slo helper slice, trigonometry, sqrt, pow, generic result helpers beyond the source-authored exp-35 std/result.slo concrete helper slice, source constructors or general source match support for (result bool i32) beyond compiler-supported fixture flow, generic std.result.unwrap_or, std.result.map, std.result.and_then, generic option helpers beyond the source-authored exp-36/exp-75/exp-95/exp-100 std/option.slo concrete helper slices, option payload families beyond i32, i64, and string, broad time APIs beyond the exp-37 std/time.slo wrappers, wall-clock/calendar/timezone APIs, high-resolution timers, async timers, cancellation, scheduling guarantees, new result payload families, numeric parse/format APIs beyond the two exp-24 integer-to-string calls, the exp-26 f64-to-string call, and the released std.string.parse_i32_result / std.string.parse_i64_result / std.string.parse_f64_result / std.string.parse_bool_result result calls, bool parsing beyond exact lowercase true/false, string/bytes parse, underscores, rich parse errors, Unicode digit parsing, f64 containers, writable resource handles, binary IO, directory handles, directory enumeration, recursive filesystem operations, process handles, sockets, async resource handling, platform-specific host error codes, rich host-error ADTs, automatic cleanup/finalizers/destructors, stable standard-library APIs or implementation replacement, stable ABI/layout/ownership, manifest schema changes, or beta maturity.