Fix embed use-after-free, restore golden fixture + refs tests, drop dead note_entry

src/core/instrument/map/note_entry.cpp

@@ -1,111 +0,0 @@
-// note_entry.cpp — see note_entry.h.
-
-#include "core/instrument/map/note_entry.h"
-
-#include <algorithm>
-#include <cctype>
-
-namespace reasampler::instrument::map {
-
-namespace {
-char asciiUpper(char c) {
-    return static_cast<char>(std::toupper(static_cast<unsigned char>(c)));
-}
-
-std::string trim(const std::string& s) {
-    std::size_t a = 0;
-    std::size_t b = s.size();
-    while (a < b && std::isspace(static_cast<unsigned char>(s[a]))) ++a;
-    while (b > a && std::isspace(static_cast<unsigned char>(s[b - 1]))) --b;
-    return s.substr(a, b - a);
-}
-
-int clampNote(long long n) {
-    if (n < 0) return 0;
-    if (n > 127) return 127;
-    return static_cast<int>(n);
-}
-
-// Semitone offset within an octave for a note letter (C..B), or -1 for a non-letter.
-int letterSemitone(char up) {
-    switch (up) {
-        case 'C': return 0;
-        case 'D': return 2;
-        case 'E': return 4;
-        case 'F': return 5;
-        case 'G': return 7;
-        case 'A': return 9;
-        case 'B': return 11;
-        default: return -1;
-    }
-}
-
-// Parse a note name like "C4", "F#3", "Bb-1" (case-insensitive, DAW convention:
-// MIDI 0 == C-1, 60 == C4). Returns nullopt if it is not a note name.
-std::optional<int> parseNoteName(const std::string& s) {
-    if (s.empty()) return std::nullopt;
-    std::size_t i = 0;
-    const int base = letterSemitone(asciiUpper(s[i]));
-    if (base < 0) return std::nullopt;  // not a letter -> not a note name
-    ++i;
-    int semitone = base;
-    // Optional accidental(s): # / b only (not 's'/'f').
-    while (i < s.size() && (s[i] == '#' || s[i] == 'b' || s[i] == 'B')) {
-        if (s[i] == '#') ++semitone;
-        else --semitone;
-        ++i;
-    }
-    // The octave: an optional sign then digits, running to the end.
-    if (i >= s.size()) return std::nullopt;  // a bare "C" has no octave -> reject (ambiguous)
-    bool neg = false;
-    if (s[i] == '+' || s[i] == '-') {
-        neg = (s[i] == '-');
-        ++i;
-    }
-    if (i >= s.size()) return std::nullopt;
-    int octave = 0;
-    bool anyDigit = false;
-    for (; i < s.size(); ++i) {
-        if (!std::isdigit(static_cast<unsigned char>(s[i]))) return std::nullopt;
-        octave = octave * 10 + (s[i] - '0');
-        anyDigit = true;
-    }
-    if (!anyDigit) return std::nullopt;
-    if (neg) octave = -octave;
-    // MIDI note = (octave + 1) * 12 + semitone  (C-1 == 0, C4 == 60).
-    const long long note = static_cast<long long>(octave + 1) * 12 + semitone;
-    return clampNote(note);
-}
-
-std::optional<int> parseInteger(const std::string& s) {
-    if (s.empty()) return std::nullopt;
-    std::size_t i = 0;
-    bool neg = false;
-    if (s[i] == '+' || s[i] == '-') {
-        neg = (s[i] == '-');
-        ++i;
-    }
-    if (i >= s.size()) return std::nullopt;
-    long long v = 0;
-    for (; i < s.size(); ++i) {
-        if (!std::isdigit(static_cast<unsigned char>(s[i]))) return std::nullopt;
-        v = v * 10 + (s[i] - '0');
-        if (v > 1000000) v = 1000000;  // saturate; clampNote takes it to 127 anyway
-    }
-    if (neg) v = -v;
-    return clampNote(v);
-}
-}  // namespace
-
-std::optional<int> parseNoteEntry(const std::string& text) {
-    const std::string s = trim(text);
-    if (s.empty()) return std::nullopt;
-    // Try a plain integer first (the common MIDI-number case); fall back to a note name.
-    if (std::isdigit(static_cast<unsigned char>(s[0])) || s[0] == '+' ||
-        (s[0] == '-' && s.size() > 1 && std::isdigit(static_cast<unsigned char>(s[1])))) {
-        if (auto n = parseInteger(s)) return n;
-    }
-    return parseNoteName(s);
-}
-
-}  // namespace reasampler::instrument::map

src/core/instrument/map/note_entry.h

@@ -1,18 +0,0 @@
-// note_entry — parse + clamp for direct numeric/note-name entry of a zone's low/high/root
-// MIDI note (a drag on the keyboard strip can't hit a precise note reliably).
-//
-// Accepts a plain decimal integer ("60", "+5") or a note name ("C4", "f#3", "Bb-1", DAW
-// convention: MIDI 0 == C-1, 60 == C4). Out-of-range CLAMPS to [0,127] rather than
-// rejecting; unparseable input returns nullopt (shell keeps the old value).
-
-#pragma once
-
-#include <optional>
-#include <string>
-
-namespace reasampler::instrument::map {
-
-// Leading/trailing whitespace ignored. Empty or unparseable input returns nullopt.
-std::optional<int> parseNoteEntry(const std::string& text);
-
-}  // namespace reasampler::instrument::map