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Merge bfd9a84616 into 37cfd2144b

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Andrew Pimenov 2026-09-04 10:17:41 +03:00 • committed by GitHub
commit 8b091ddd87
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1 changed files with 68 additions and 54 deletions
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122
src/engine/evaluator.ts
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@ -355,62 +355,76 @@ function evalPctOp(op: string, l: Value, r: Value): Value {
throw new EvalError(`bad percent op ${op}`);
}
function evalConvUnit(v: Value, target: Extract<ConvTarget, { type: "unit" }>): Value {
if (v.kind === "percent") return pct(v.value); // "x in %" — keep
if (v.kind !== "quantity")
throw new EvalError("cannot convert date to unit");
if (!v.unit) return qty(v.value, target.unit);
return convertQ(v, target.unit);
}
function evalConvCurrency(v: Value, target: Extract<ConvTarget, { type: "currency" }>, ctx: EvalCtx): Value {
let unit;
if (target.onDate) {
const dateRates = ctx.historicalRates?.get(target.onDate);
const rate = dateRates?.get(target.code);
if (rate === undefined)
throw new EvalError(
`no historical rate for ${target.code} on ${target.onDate}`,
);
unit = ctx.reg.makeCurrencyUnitFromRate(target.code, new Decimal(rate));
} else {
unit = ctx.reg.makeCurrencyUnit(target.code);
if (!unit) throw new EvalError(`no rate for ${target.code}`);
}
if (v.kind !== "quantity")
throw new EvalError("cannot convert to currency");
if (!v.unit) return qty(v.value, unit);
return convertQ(v, unit);
}
function evalConvRepr(v: Value, target: Extract<ConvTarget, { type: "repr" }>): Value {
if (v.kind !== "quantity") throw new EvalError("bad repr conversion");
return { ...v, repr: target.repr };
}
function evalConvScale(v: Value, target: Extract<ConvTarget, { type: "scale" }>): Value {
if (v.kind !== "quantity") throw new EvalError("bad scale conversion");
return qty(v.value.div(target.mult), v.unit); // formatter shows plain number
}
function evalConvTz(v: Value, target: Extract<ConvTarget, { type: "tz" }>): Value {
const zone = resolveZone(target.words);
if (!zone) throw new EvalError("unknown timezone");
if (v.kind !== "date") throw new EvalError("timezone needs a time");
return { ...v, timeZone: zone };
}
function evalConvUnix(v: Value): Value {
if (v.kind === "date")
return qty(new Decimal(v.ms).div(1000).floor(), null, "plain");
throw new EvalError("unix needs a date");
}
function evalConvToDate(v: Value): Value {
if (v.kind !== "quantity" || v.unit)
throw new EvalError("date needs a plain number");
// heuristics: > 1e12 means milliseconds, else seconds
const ms = v.value.gt(1e12)
? v.value.toNumber()
: v.value.mul(1000).toNumber();
return { kind: "date", ms, hasTime: true };
}
function evalConv(v: Value, target: ConvTarget, ctx: EvalCtx): Value {
switch (target.type) {
case "unit": {
if (v.kind === "percent") return pct(v.value); // "x in %" — keep
if (v.kind !== "quantity")
throw new EvalError("cannot convert date to unit");
if (!v.unit) return qty(v.value, target.unit);
return convertQ(v, target.unit);
}
case "currency": {
let unit;
if (target.onDate) {
const dateRates = ctx.historicalRates?.get(target.onDate);
const rate = dateRates?.get(target.code);
if (rate === undefined)
throw new EvalError(
`no historical rate for ${target.code} on ${target.onDate}`,
);
unit = ctx.reg.makeCurrencyUnitFromRate(target.code, new Decimal(rate));
} else {
unit = ctx.reg.makeCurrencyUnit(target.code);
if (!unit) throw new EvalError(`no rate for ${target.code}`);
}
if (v.kind !== "quantity")
throw new EvalError("cannot convert to currency");
if (!v.unit) return qty(v.value, unit);
return convertQ(v, unit);
}
case "repr": {
if (v.kind !== "quantity") throw new EvalError("bad repr conversion");
return { ...v, repr: target.repr };
}
case "scale": {
if (v.kind !== "quantity") throw new EvalError("bad scale conversion");
return qty(v.value.div(target.mult), v.unit); // formatter shows plain number
}
case "tz": {
const zone = resolveZone(target.words);
if (!zone) throw new EvalError("unknown timezone");
if (v.kind !== "date") throw new EvalError("timezone needs a time");
return { ...v, timeZone: zone };
}
case "unix": {
if (v.kind === "date")
return qty(new Decimal(v.ms).div(1000).floor(), null, "plain");
throw new EvalError("unix needs a date");
}
case "todate": {
if (v.kind !== "quantity" || v.unit)
throw new EvalError("date needs a plain number");
// heuristics: > 1e12 means milliseconds, else seconds
const ms = v.value.gt(1e12)
? v.value.toNumber()
: v.value.mul(1000).toNumber();
return { kind: "date", ms, hasTime: true };
}
case "unit": return evalConvUnit(v, target);
case "currency": return evalConvCurrency(v, target, ctx);
case "repr": return evalConvRepr(v, target);
case "scale": return evalConvScale(v, target);
case "tz": return evalConvTz(v, target);
case "unix": return evalConvUnix(v);
case "todate": return evalConvToDate(v);
}
}