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preserves
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Refactor compiler before new approach

This commit is contained in:
Tony Garnock-Jones 2021-03-17 15:59:46 +01:00
parent 98346c61d5
commit bacf310648
3 changed files with 637 additions and 623 deletions
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908
implementations/javascript/packages/schema/src/compiler.ts
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@ -15,531 +15,545 @@ function fnblock(... items: Item[]): Item {
return seq('((() => ', block(... items), ')())');
}
export function compile(env: Environment, schema: Schema, options: CompilerOptions = {}): string {
const literals = new Dictionary<never, string>();
const types: Array<Item> = [];
const functions: Array<Item> = [];
const imports = new KeyedSet<[string, string]>();
let temps: Array<string> = [];
let body: Array<Item> = [];
let tempCounter = 0;
const pointerName = Schema._._field0(schema).get(M.$pointer);
class ModuleContext {
readonly env: Environment;
readonly schema: Schema;
readonly options: CompilerOptions;
function gentemp(): string {
const varname = '_tmp' + tempCounter++;
temps.push(varname);
return varname;
readonly literals = new Dictionary<never, string>();
readonly typedefs: Item[] = [];
readonly functiondefs: Item[] = [];
readonly imports = new KeyedSet<[string, string]>();
constructor(env: Environment, schema: Schema, options: CompilerOptions) {
this.env = env;
this.schema = schema;
this.options = options;
}
function literal(v: Input): Item {
let varname = literals.get(v);
literal(v: Input): Item {
let varname = this.literals.get(v);
if (varname === void 0) {
const s = v.asPreservesText()
.replace('_', '__')
.replace('*', '_STAR_');
varname = M.isValidToken('_' + s, true) ? '$' + s : '__lit' + literals.size;
literals.set(v, varname);
varname = M.isValidToken('_' + s, true) ? '$' + s : '__lit' + this.literals.size;
this.literals.set(v, varname);
}
return varname;
}
function emit(item: Item): void {
body.push(item);
}
function collectBody(f: () => void): Item {
const oldTemps = temps;
const oldBody = body;
temps = []
body = [];
f();
const ts = temps;
const result = body;
temps = oldTemps;
body = oldBody;
return block(
... ts.length > 0 ? [seq('let ', commas(... ts), ': any')] : [],
... result);
}
function accumulateCompound(p: Pattern,
kFail: () => Item[],
kAcc: (temp: string) => Item[]): Item
{
const t = gentemp();
return seq(`while (!d.closeCompound()) `, collectBody(() => {
emit(seq(`${t} = void 0`));
decoderFor(p, t);
emit(seq(`if (${t} === void 0) `, block(
... kFail(),
seq(`break`))));
kAcc(t).forEach(emit);
}));
}
function derefPattern([_name, p]: [symbol, Alternative]): Definition {
derefPattern([_name, p]: [symbol, Alternative]): Definition {
if (p.label === M.$ref) {
return lookup(refPosition(p), p, env,
return lookup(refPosition(p), p, this.env,
(p) => p,
(p) => p,
(_mod, _modPath, pp) => pp ?? p);
(_modId, _modPath, pp) => pp ?? p);
} else {
return p;
}
}
function decoderForTuple(tuplePattern: Pattern,
ps: Pattern[],
dest: string,
recordFields: boolean,
variablePattern: Pattern | undefined): void {
const temps = ps.map(gentemp);
function loop(i: number) {
if (i < ps.length) {
decoderFor(ps[i], temps[i]);
emit(seq(`if (${temps[i]} !== void 0) `,
collectBody(() => loop(i + 1))));
defineType(f: Item): void {
this.typedefs.push(f);
}
defineFunction(f: (ctx: FunctionContext) => Item): void {
this.functiondefs.push(f(new FunctionContext(this)));
}
}
class FunctionContext {
readonly mod: ModuleContext;
tempCounter = 0;
temps: string[] = [];
constructor(mod: ModuleContext) {
this.mod = mod;
}
gentemp(): string {
const varname = '_tmp' + this.tempCounter++;
this.temps.push(varname);
return varname;
}
gentemps(n: number): string[] {
const temps = [];
while (temps.length < n) temps.push(this.gentemp());
return temps;
}
block(f: () => Item[]): Item {
const oldTemps = this.temps;
this.temps = [];
const items = f();
const ts = this.temps;
this.temps = oldTemps;
return block(
... ts.length > 0 ? [seq(`let `, commas(... ts), ': any')] : [],
... items);
}
}
function unname(p: NamedPattern): Pattern {
return (p.label === M.$named) ? p[1] : p;
}
function fieldName(np: NamedPattern, index: number): string {
return (np.label === M.$named) ? np[0].description! : `_field${index}`;
}
function accumulateCompound(ctx: FunctionContext,
p: Pattern,
kFail: () => Item[],
kAcc: (temp: string) => Item[]): Item
{
const t = ctx.gentemp();
return seq(`while (!d.closeCompound()) `, ctx.block(() => [
seq(`${t} = void 0`),
... decoderFor(ctx, p, t),
seq(`if (${t} === void 0) `, block(... kFail(), seq(`break`))),
... kAcc(t)]));
}
function decoderForTuple(ctx: FunctionContext,
tuplePattern: Pattern,
ps: Pattern[],
dest: string,
recordFields: boolean,
variablePattern: Pattern | undefined): Item[]
{
const temps = ctx.gentemps(ps.length);
function loop(i: number): Item[] {
if (i < ps.length) {
return [... decoderFor(ctx, ps[i], temps[i]),
seq(`if (${temps[i]} !== void 0) `, ctx.block(() => loop(i + 1)))];
} else {
if (variablePattern === void 0) {
return [seq(`if (d.closeCompound()) ${dest} = `, brackets(... temps),
` as `, typeFor(ctx.mod, tuplePattern))];
} else {
if (variablePattern === void 0) {
emit(seq(`if (d.closeCompound()) ${dest} = `, brackets(... temps),
` as `, typeFor(tuplePattern)));
} else {
emit(block(
seq(`let vN: `, typeFor(tuplePattern),
` | undefined = `, brackets(... temps)),
accumulateCompound(variablePattern,
() => [`vN = void 0`],
(t) => [`vN.push(${t})`]),
seq(`${dest} = vN`)));
}
return [block(
seq(`let vN: `, typeFor(ctx.mod, tuplePattern),
` | undefined = `, brackets(... temps)),
accumulateCompound(ctx,
variablePattern,
() => [`vN = void 0`],
(t) => [`vN.push(${t})`]),
seq(`${dest} = vN`))];
}
}
if (recordFields) {
loop(0);
} else {
emit(seq(`if (d.openSequence()) `, collectBody(() => loop(0))));
}
}
function decoderFor(p: Definition, dest: string, recordFields = false): void {
switch (p.label) {
case M.$atom:
switch (p[0]) {
case M.$Boolean: emit(`${dest} = d.nextBoolean()`); break;
case M.$Float: emit(`${dest} = d.nextFloat()`); break;
case M.$Double: emit(`${dest} = d.nextDouble()`); break;
case M.$SignedInteger: emit(`${dest} = d.nextSignedInteger()`); break;
case M.$String: emit(`${dest} = d.nextString()`); break;
case M.$ByteString: emit(`${dest} = d.nextByteString()`); break;
case M.$Symbol: emit(`${dest} = d.nextSymbol()`); break;
}
break;
case M.$lit: {
let n: string;
switch (typeof p[0]) {
case 'boolean': n = `d.nextBoolean()`; break;
case 'string': n = `d.nextString()`; break;
case 'number': n = `d.nextSignedInteger()`; break;
case 'symbol': n = `d.nextSymbol()`; break;
default: n = `d.next()`; break;
}
emit(`${dest} = _.asLiteral(${n}, ${literal(p[0])})`);
break;
return recordFields
? loop(0)
: [seq(`if (d.openSequence()) `, ctx.block(() => loop(0)))];
}
function decoderFor(ctx: FunctionContext, p: Definition, dest: string, recordFields = false): Item[]
{
switch (p.label) {
case M.$atom:
switch (p[0]) {
case M.$Boolean: return [`${dest} = d.nextBoolean()`];
case M.$Float: return [`${dest} = d.nextFloat()`];
case M.$Double: return [`${dest} = d.nextDouble()`];
case M.$SignedInteger: return [`${dest} = d.nextSignedInteger()`];
case M.$String: return [`${dest} = d.nextString()`];
case M.$ByteString: return [`${dest} = d.nextByteString()`];
case M.$Symbol: return [`${dest} = d.nextSymbol()`];
}
case M.$ref:
lookup(refPosition(p), p, env,
(_p) => emit(`${dest} = decode${p[1].description!}(d)`),
(p) => decoderFor(p, dest),
(mod, modPath,_p) => {
imports.add([mod, modPath]);
emit(`${dest} = ${mod}.decode${p[1].description!}(d)`);
});
break;
case M.$or: {
const alts = p[0];
const recs = alts.map(derefPattern);
if (recs.length > 1 && recs.every(pp => pp.label === M.$rec)) {
// Hoist the record check up.
// This is pretty hacky. If we lift the level of
// discourse a little, we can do this
// automatically and generically...
emit(seq(`if (d.openRecord()) `, collectBody(() => {
const label = gentemp();
emit(seq(`${label} = d.next()`));
const mark = gentemp();
emit(seq(`${mark} = d.mark()`));
function loop(i: number) {
const alt = recs[i];
if (alt.label !== M.$rec) return; // avoid a cast
emit(seq(`if (`, predicateFor(label, alt[0]), `) `, collectBody(() => {
const fs = gentemp();
decoderFor(alt[1], fs, true);
emit(seq(`if (${fs} !== void 0) ${dest} = _.Record`,
anglebrackets(typeFor(alt[0]), typeFor(alt[1])),
parens(seq(label, ` as any`),
seq(fs, ` as any`))));
})));
if (i < recs.length - 1) {
emit(seq(`if (${dest} === void 0) `, collectBody(() => {
emit(`d.restoreMark(${mark})`);
loop(i + 1);
})));
}
}
loop(0);
})));
} else {
switch (alts.length) {
case 0: break; // assume dest is already void 0
case 1: decoderFor(alts[0][1], dest); break;
default: {
const mark = gentemp();
emit(`${mark} = d.mark()`);
function loop(i: number) {
decoderFor(alts[i][1], dest);
if (i < alts.length - 1) {
emit(seq(`if (${dest} === void 0) `, collectBody(() => {
emit(`d.restoreMark(${mark})`);
loop(i + 1);
})));
}
}
loop(0);
break;
}
case M.$lit: {
let n: string;
switch (typeof p[0]) {
case 'boolean': n = `d.nextBoolean()`; break;
case 'string': n = `d.nextString()`; break;
case 'number': n = `d.nextSignedInteger()`; break;
case 'symbol': n = `d.nextSymbol()`; break;
default: n = `d.next()`; break;
}
return [`${dest} = _.asLiteral(${n}, ${ctx.mod.literal(p[0])})`];
}
case M.$ref:
return lookup(refPosition(p), p, ctx.mod.env,
(_p) => [`${dest} = decode${p[1].description!}(d)`],
(p) => decoderFor(ctx, p, dest),
(modId, modPath,_p) => {
ctx.mod.imports.add([modId, modPath]);
return [`${dest} = ${modId}.decode${p[1].description!}(d)`];
});
case M.$or: {
const alts = p[0];
const recs = alts.map(p => ctx.mod.derefPattern(p));
if (recs.length > 1 && recs.every(pp => pp.label === M.$rec)) {
// Hoist the record check up.
// This is pretty hacky. If we lift the level of
// discourse a little, we can do this
// automatically and generically...
return [seq(`if (d.openRecord()) `, ctx.block(() => {
const label = ctx.gentemp();
const mark = ctx.gentemp();
function loop(i: number): Item[] {
const alt = recs[i];
if (alt.label !== M.$rec) throw new Error("Internal error"); // avoid a cast
return [
seq(`if (`, predicateFor(ctx, label, alt[0]), `) `, ctx.block(() => {
const fs = ctx.gentemp();
return [... decoderFor(ctx, alt[1], fs, true),
seq(`if (${fs} !== void 0) ${dest} = _.Record`,
anglebrackets(typeFor(ctx.mod, alt[0]),
typeFor(ctx.mod, alt[1])),
parens(seq(label, ` as any`),
seq(fs, ` as any`)))];
})),
... (i < recs.length - 1)
? [seq(`if (${dest} === void 0) `,
ctx.block(() => [`d.restoreMark(${mark})`, ... loop(i + 1)]))]
: [],
];
}
}
break;
}
case M.$and:
switch (p[0].length) {
case 0: emit(`${dest} = d.next()`); break;
case 1: decoderFor(p[0][0], dest); break;
return [seq(`${label} = d.next()`),
seq(`${mark} = d.mark()`),
... loop(0)];
}))];
} else {
switch (alts.length) {
case 0: return []; // assume dest is already void 0
case 1: return decoderFor(ctx, alts[0][1], dest);
default: {
const [pp0, ... ppN] = p[0];
decoderFor(pp0, dest);
const otherChecks =
opseq('true', ' && ', ... ppN.map(pp => predicateFor(dest, pp)));
emit(seq(`if (!`, otherChecks, `) ${dest} = void 0`));
break;
const mark = ctx.gentemp();
function loop(i: number): Item[] {
return [
... decoderFor(ctx, alts[i][1], dest),
... (i < alts.length - 1)
? [seq(`if (${dest} === void 0) `, ctx.block(() =>
[`d.restoreMark(${mark})`, ... loop(i + 1)]))]
: [],
];
}
return [`${mark} = d.mark()`, ... loop(0)];
}
}
break;
case M.$pointer:
emit(`${dest} = _decodePtr(d)`);
break;
case M.$rec:
// assume dest is already void 0
emit(seq(`if (d.openRecord()) `, collectBody(() => {
const label = gentemp();
decoderFor(p[0], label);
emit(seq(`if (${label} !== void 0) `,
collectBody(() => {
const fs = gentemp();
decoderFor(p[1], fs, true);
emit(seq(
`if (${fs} !== void 0) ${dest} = _.Record`,
anglebrackets(typeFor(p[0]), typeFor(p[1])),
parens(seq(label, ` as any`),
seq(fs, ` as any`))));
})));
})));
break;
case M.$tuple:
// assume dest is already void 0
decoderForTuple(p, p[0].map(unname), dest, recordFields, void 0);
break;
case M.$tuple_STAR_:
// assume dest is already void 0
decoderForTuple(p, p[0].map(unname), dest, recordFields, unname(p[1]));
break;
case M.$setof:
// assume dest is already void 0
emit(seq(`if (d.openSet()) `, collectBody(() => {
emit(seq(`let r: `, typeFor(p), ` | undefined = new _.KeyedSet()`));
emit(accumulateCompound(p[0],
() => [`r = void 0`],
(t) => [`r.add(${t})`]));
emit(`${dest} = r`);
})));
break;
case M.$dictof:
// assume dest is already void 0
emit(seq(`if (d.openDictionary()) `, collectBody(() => {
emit(seq(`let r: `, typeFor(p), ` | undefined = new _.KeyedDictionary()`));
emit(seq(`while (!d.closeCompound()) `, collectBody(() => {
emit(seq(`let K: undefined | `, typeFor(p[0]), ` = void 0`));
decoderFor(p[0], 'K');
emit(seq(`if (K === void 0) { r = void 0; break; }`));
emit(seq(`let V: undefined | `, typeFor(p[1]), ` = void 0`));
decoderFor(p[1], 'V');
emit(seq(`if (V === void 0) { r = void 0; break; }`));
emit(seq(`r.set(K, V)`));
})));
emit(seq(`${dest} = r`));
})));
break;
case M.$dict:
emit(seq(`${dest} = d.next()`));
emit(seq(
`if (${dest} !== void 0 && !(`, predicateFor(dest, p), `)) ${dest} = void 0`));
break;
default:
((_p: never) => {})(p);
throw new Error("Unreachable");
}
}
}
function typeFor(p: Pattern): Item {
switch (p.label) {
case M.$atom:
switch (p[0]) {
case M.$Boolean: return `boolean`;
case M.$Float: return `_.SingleFloat`;
case M.$Double: return `_.DoubleFloat`;
case M.$SignedInteger: return `number`;
case M.$String: return `string`;
case M.$ByteString: return `_.Bytes`;
case M.$Symbol: return `symbol`;
}
case M.$lit:
return `(typeof ${literal(p[0])})`;
case M.$ref:
return lookup(refPosition(p), p, env,
(_p) => p[1].description!,
(p) => typeForAlternative(p),
(mod, modPath,_p) => {
imports.add([mod, modPath]);
return `${mod}.${p[1].description!}`;
});
case M.$pointer:
return `_ptr`;
case M.$rec:
return seq('_.Record', anglebrackets(typeFor(p[0]), typeFor(p[1]), '_ptr'));
case M.$tuple:
return brackets(... p[0].map(pp => typeFor(unname(pp))));
case M.$tuple_STAR_:
if (p[0].length === 0) {
return seq('Array<', typeFor(unname(p[1])), '>');
} else {
return brackets(... p[0].map(pp => typeFor(unname(pp))),
seq('... Array<', typeFor(unname(p[1])), '>'));
}
case M.$setof:
return seq('_.KeyedSet', anglebrackets(typeFor(p[0]), '_ptr'));
case M.$dictof:
return seq('_.KeyedDictionary', anglebrackets(typeFor(p[0]), typeFor(p[1]), '_ptr'));
case M.$dict:
return parens(seq(
block(
... Array.from(p[0]).map(([k, vp]) =>
seq(`get(k: typeof ${literal(k)}): `, typeFor(unname(vp)))),
... Array.from(p[0]).map(([k, _vp]) =>
seq(`has(k: typeof ${literal(k)}): true`))),
' & _.Dictionary<_ptr>'));
default:
((_p: never) => {})(p);
throw new Error("Unreachable");
}
}
function typeForDefinition(_name: symbol, d: Definition): Item {
if (d.label === M.$or) {
return opseq('never', ' | ', ... d[0].map(a => typeForAlternative(a[1])));
} else {
return typeForAlternative(d);
}
}
function typeForAlternative(a: Alternative): Item {
if (a.label === M.$and) {
return opseq('_val', ' & ', ... a[0].map(p => typeFor(p)));
} else {
return typeFor(a);
}
}
function predicateFor(v: string, p: Definition, recordOkAsTuple = false): Item {
switch (p.label) {
case M.$atom:
switch (p[0]) {
case M.$Boolean: return `typeof ${v} === 'boolean'`;
case M.$Float: return `_.Float.isSingle(${v})`;
case M.$Double: return `_.Float.isDouble(${v})`;
case M.$SignedInteger: return `typeof ${v} === 'number'`;
case M.$String: return `typeof ${v} === 'string'`;
case M.$ByteString: return `_.Bytes.isBytes(${v})`;
case M.$Symbol: return `typeof ${v} === 'symbol'`;
}
case M.$lit:
return `_.is(${v}, ${literal(p[0])})`;
case M.$ref:
return lookup(refPosition(p), p, env,
(_p) => `is${Ref._.name(p).description!}(${v})`,
(pp) => predicateFor(v, pp),
(mod, modPath, _p) => {
imports.add([mod, modPath]);
return `${mod}.is${Ref._.name(p).description!}(${v})`;
});
case M.$or: {
const alts = p[0];
const recs = alts.map(derefPattern);
if (recs.length > 1 && recs.every(pp => pp.label === M.$rec)) {
return seq(
`_.Record.isRecord<_val, _.Tuple<_val>, _ptr>(${v}) && `,
parens(opseq('false', ' || ',
... recs.map(r =>
(r.label !== M.$rec) ? '' : parens(seq(
predicateFor(`${v}.label`, r[0]),
' && ',
predicateFor(v, r[1], true)))))));
} else {
return opseq('false', ' || ', ... p[0].map(pp => predicateFor(v, pp[1])));
case M.$and:
switch (p[0].length) {
case 0: return [`${dest} = d.next()`];
case 1: return decoderFor(ctx, p[0][0], dest);
default: {
const [pp0, ... ppN] = p[0];
return [... decoderFor(ctx, pp0, dest),
seq(`if (!`, opseq('true', ' && ',
... ppN.map(pp => predicateFor(ctx, dest, pp))),
`) ${dest} = void 0`)];
}
}
case M.$and:
return opseq('true', ' && ', ... p[0].map(pp => predicateFor(v, pp)));
case M.$pointer:
return `_.isPointer(${v})`;
case M.$rec:
return opseq('true', ' && ',
`_.Record.isRecord<_val, _.Tuple<_val>, _ptr>(${v})`,
predicateFor(`${v}.label`, p[0]),
predicateFor(v, p[1], true));
case M.$tuple:
return opseq('true', ' && ',
... (recordOkAsTuple ? []
: [`_.Array.isArray(${v})`, `!_.Record.isRecord<_val, _.Tuple<_val>, _ptr>(${v})`]),
`(${v}.length === ${p[0].length})`,
... p[0].map((pp, i) => predicateFor(`${v}[${i}]`, unname(pp))));
case M.$tuple_STAR_:
return opseq('true', ' && ',
... (recordOkAsTuple ? []
: [`_.Array.isArray(${v})`, `!_.Record.isRecord<_val, _.Tuple<_val>, _ptr>(${v})`]),
`(${v}.length >= ${p[0].length})`,
seq(p[0].length > 0 ? `${v}.slice(${p[0].length})` : v,
`.every(v => `,
parens(predicateFor('v', unname(p[1]))),
`)`),
... p[0].map((pp, i) => predicateFor(`${v}[${i}]`, unname(pp))));
case M.$setof:
return opseq('true', ' && ',
`_.Set.isSet<_val>(${v})`,
fnblock(
seq(`for (const vv of ${v}) `, block(
seq('if (!(', predicateFor('vv', p[0]), ')) return false'))),
seq('return true')));
case M.$dictof:
return opseq('true', ' && ',
`_.Dictionary.isDictionary<_ptr>(${v})`,
fnblock(
seq(`for (const e of ${v}) `, block(
seq('if (!(', predicateFor('e[0]', p[0]), ')) return false'),
seq('if (!(', predicateFor('e[1]', p[1]), ')) return false'))),
seq('return true')));
case M.$dict:
return opseq('true', ' && ',
`_.Dictionary.isDictionary<_ptr>(${v})`,
... Array.from(p[0]).map(([k, vp]) => {
const tmp = gentemp();
return parens(seq(
`(${tmp} = ${v}.get(${literal(k)})) !== void 0 && `,
predicateFor(tmp, unname(vp))));
}));
default:
((_p: never) => {})(p);
throw new Error("Unreachable");
case M.$pointer:
return [`${dest} = _decodePtr(d)`];
case M.$rec:
// assume dest is already void 0
return [seq(`if (d.openRecord()) `, ctx.block(() => {
const label = ctx.gentemp();
return [... decoderFor(ctx, p[0], label),
seq(`if (${label} !== void 0) `, ctx.block(() => {
const fs = ctx.gentemp();
return [... decoderFor(ctx, p[1], fs, true),
seq(`if (${fs} !== void 0) ${dest} = _.Record`,
anglebrackets(typeFor(ctx.mod, p[0]), typeFor(ctx.mod, p[1])),
parens(seq(label, ` as any`),
seq(fs, ` as any`)))];
}))];
}))];
case M.$tuple:
// assume dest is already void 0
return decoderForTuple(ctx, p, p[0].map(unname), dest, recordFields, void 0);
case M.$tuple_STAR_:
// assume dest is already void 0
return decoderForTuple(ctx, p, p[0].map(unname), dest, recordFields, unname(p[1]));
case M.$setof:
// assume dest is already void 0
return [seq(`if (d.openSet()) `, ctx.block(() => [
seq(`let r: `, typeFor(ctx.mod, p), ` | undefined = new _.KeyedSet()`),
accumulateCompound(ctx,
p[0],
() => [`r = void 0`],
(t) => [`r.add(${t})`]),
`${dest} = r`]))];
case M.$dictof:
// assume dest is already void 0
return [seq(`if (d.openDictionary()) `, ctx.block(() => [
seq(`let r: `, typeFor(ctx.mod, p), ` | undefined = new _.KeyedDictionary()`),
seq(`while (!d.closeCompound()) `, ctx.block(() => [
seq(`let K: undefined | `, typeFor(ctx.mod, p[0]), ` = void 0`),
... decoderFor(ctx, p[0], 'K'),
seq(`if (K === void 0) { r = void 0; break; }`),
seq(`let V: undefined | `, typeFor(ctx.mod, p[1]), ` = void 0`),
... decoderFor(ctx, p[1], 'V'),
seq(`if (V === void 0) { r = void 0; break; }`),
seq(`r.set(K, V)`)])),
seq(`${dest} = r`)]))];
case M.$dict:
return [seq(`${dest} = d.next()`),
seq(`if (${dest} !== void 0 && !(`, predicateFor(ctx, dest, p),
`)) ${dest} = void 0`)];
default:
((_p: never) => {})(p);
throw new Error("Unreachable");
}
}
function typeFor(mod: ModuleContext, p: Pattern): Item {
switch (p.label) {
case M.$atom:
switch (p[0]) {
case M.$Boolean: return `boolean`;
case M.$Float: return `_.SingleFloat`;
case M.$Double: return `_.DoubleFloat`;
case M.$SignedInteger: return `number`;
case M.$String: return `string`;
case M.$ByteString: return `_.Bytes`;
case M.$Symbol: return `symbol`;
}
case M.$lit:
return `(typeof ${mod.literal(p[0])})`;
case M.$ref:
return lookup(refPosition(p), p, mod.env,
(_p) => p[1].description!,
(p) => typeForAlternative(mod, p),
(modId, modPath,_p) => {
mod.imports.add([modId, modPath]);
return `${modId}.${p[1].description!}`;
});
case M.$pointer:
return `_ptr`;
case M.$rec:
return seq('_.Record', anglebrackets(typeFor(mod, p[0]), typeFor(mod, p[1]), '_ptr'));
case M.$tuple:
return brackets(... p[0].map(pp => typeFor(mod, unname(pp))));
case M.$tuple_STAR_:
if (p[0].length === 0) {
return seq('Array<', typeFor(mod, unname(p[1])), '>');
} else {
return brackets(... p[0].map(pp => typeFor(mod, unname(pp))),
seq('... Array<', typeFor(mod, unname(p[1])), '>'));
}
case M.$setof:
return seq('_.KeyedSet', anglebrackets(typeFor(mod, p[0]), '_ptr'));
case M.$dictof:
return seq('_.KeyedDictionary', anglebrackets(
typeFor(mod, p[0]),
typeFor(mod, p[1]),
'_ptr'));
case M.$dict:
return parens(seq(
block(
... Array.from(p[0]).map(([k, vp]) =>
seq(`get(k: typeof ${mod.literal(k)}): `, typeFor(mod, unname(vp)))),
... Array.from(p[0]).map(([k, _vp]) =>
seq(`has(k: typeof ${mod.literal(k)}): true`))),
' & _.Dictionary<_ptr>'));
default:
((_p: never) => {})(p);
throw new Error("Unreachable");
}
}
function typeForDefinition(mod: ModuleContext, _name: symbol, d: Definition): Item {
if (d.label === M.$or) {
return opseq('never', ' | ', ... d[0].map(a => typeForAlternative(mod, a[1])));
} else {
return typeForAlternative(mod, d);
}
}
function typeForAlternative(mod: ModuleContext, a: Alternative): Item {
if (a.label === M.$and) {
return opseq('_val', ' & ', ... a[0].map(p => typeFor(mod, p)));
} else {
return typeFor(mod, a);
}
}
function predicateFor(ctx: FunctionContext, v: string, p: Definition, recordOkAsTuple = false): Item
{
switch (p.label) {
case M.$atom:
switch (p[0]) {
case M.$Boolean: return `typeof ${v} === 'boolean'`;
case M.$Float: return `_.Float.isSingle(${v})`;
case M.$Double: return `_.Float.isDouble(${v})`;
case M.$SignedInteger: return `typeof ${v} === 'number'`;
case M.$String: return `typeof ${v} === 'string'`;
case M.$ByteString: return `_.Bytes.isBytes(${v})`;
case M.$Symbol: return `typeof ${v} === 'symbol'`;
}
case M.$lit:
return `_.is(${v}, ${ctx.mod.literal(p[0])})`;
case M.$ref:
return lookup(refPosition(p), p, ctx.mod.env,
(_p) => `is${Ref._.name(p).description!}(${v})`,
(pp) => predicateFor(ctx, v, pp),
(modId, modPath, _p) => {
ctx.mod.imports.add([modId, modPath]);
return `${modId}.is${Ref._.name(p).description!}(${v})`;
});
case M.$or: {
const alts = p[0];
const recs = alts.map(p => ctx.mod.derefPattern(p));
if (recs.length > 1 && recs.every(pp => pp.label === M.$rec)) {
return seq(
`_.Record.isRecord<_val, _.Tuple<_val>, _ptr>(${v}) && `,
parens(opseq('false', ' || ',
... recs.map(r =>
(r.label !== M.$rec) ? '' : parens(seq(
predicateFor(ctx, `${v}.label`, r[0]),
' && ',
predicateFor(ctx, v, r[1], true)))))));
} else {
return opseq('false', ' || ', ... p[0].map(pp => predicateFor(ctx, v, pp[1])));
}
}
case M.$and:
return opseq('true', ' && ', ... p[0].map(pp => predicateFor(ctx, v, pp)));
case M.$pointer:
return `_.isPointer(${v})`;
case M.$rec:
return opseq('true', ' && ',
`_.Record.isRecord<_val, _.Tuple<_val>, _ptr>(${v})`,
predicateFor(ctx, `${v}.label`, p[0]),
predicateFor(ctx, v, p[1], true));
case M.$tuple:
return opseq('true', ' && ',
... (recordOkAsTuple ? []
: [`_.Array.isArray(${v})`, `!_.Record.isRecord<_val, _.Tuple<_val>, _ptr>(${v})`]),
`(${v}.length === ${p[0].length})`,
... p[0].map((pp, i) => predicateFor(ctx, `${v}[${i}]`, unname(pp))));
case M.$tuple_STAR_:
return opseq('true', ' && ',
... (recordOkAsTuple ? []
: [`_.Array.isArray(${v})`, `!_.Record.isRecord<_val, _.Tuple<_val>, _ptr>(${v})`]),
`(${v}.length >= ${p[0].length})`,
seq(p[0].length > 0 ? `${v}.slice(${p[0].length})` : v,
`.every(v => `,
parens(predicateFor(ctx, 'v', unname(p[1]))),
`)`),
... p[0].map((pp, i) => predicateFor(ctx, `${v}[${i}]`, unname(pp))));
case M.$setof:
return opseq('true', ' && ',
`_.Set.isSet<_val>(${v})`,
fnblock(
seq(`for (const vv of ${v}) `, block(
seq('if (!(', predicateFor(ctx, 'vv', p[0]), ')) return false'))),
seq('return true')));
case M.$dictof:
return opseq('true', ' && ',
`_.Dictionary.isDictionary<_ptr>(${v})`,
fnblock(
seq(`for (const e of ${v}) `, block(
seq('if (!(', predicateFor(ctx, 'e[0]', p[0]), ')) return false'),
seq('if (!(', predicateFor(ctx, 'e[1]', p[1]), ')) return false'))),
seq('return true')));
case M.$dict:
return opseq('true', ' && ',
`_.Dictionary.isDictionary<_ptr>(${v})`,
... Array.from(p[0]).map(([k, vp]) => {
const tmp = ctx.gentemp();
return parens(seq(
`(${tmp} = ${v}.get(${ctx.mod.literal(k)})) !== void 0 && `,
predicateFor(ctx, tmp, unname(vp))));
}));
default:
((_p: never) => {})(p);
throw new Error("Unreachable");
}
}
function unname(p: NamedPattern): Pattern {
return (p.label === M.$named) ? p[1] : p;
}
function fieldName(np: NamedPattern, index: number): string {
return (np.label === M.$named) ? np[0].description! : `_field${index}`;
}
function fieldEntry(np: NamedPattern, index: number): Item {
return seq(JSON.stringify(fieldName(np, index)), ': ', typeFor(unname(np)));
}
export function compile(env: Environment, schema: Schema, options: CompilerOptions = {}): string {
const mod = new ModuleContext(env, schema, options);
for (const [name0, def] of Schema._._field0(schema).get(M.$definitions)) {
const name = name0 as symbol;
temps = [];
const recognizer = predicateFor('v', def);
if (def.label === M.$rec &&
def[0].label === M.$lit &&
def[1].label === M.$tuple)
{
types.push(
function fieldEntry(np: NamedPattern, index: number): Item {
return seq(JSON.stringify(fieldName(np, index)), ': ', typeFor(mod, unname(np)));
}
mod.defineType(
seq(`export const ${name.description!} = _.Record.makeConstructor<`,
braces(... def[1][0].map(fieldEntry)),
`, _ptr>()(${literal(def[0][0])}, `,
`, _ptr>()(${mod.literal(def[0][0])}, `,
JSON.stringify(def[1][0].map(fieldName)), `);`));
}
types.push(
seq(`export type ${name.description!} = `, typeForDefinition(name, def), `;`));
functions.push(
mod.defineType(
seq(`export type ${name.description!} = `, typeForDefinition(mod, name, def), `;`));
mod.defineFunction(ctx =>
seq(`export function is${name.description!}`,
'(v: any): v is ', name.description!, ' ',
block(
... temps.length > 0 ? [seq('let ', commas(... temps), ': any')] : [],
seq('return ', recognizer))));
functions.push(
ctx.block(() => [seq('return ', predicateFor(ctx, 'v', def))])));
mod.defineFunction(ctx =>
seq(`export function as${name.description!}`,
'(v: any): ', name.description!, ' ',
block(
ctx.block(() => [
seq(`if (!is${name.description!}(v)) `,
block(`throw new TypeError(\`Invalid ${name.description!}: \${_.stringify(v)}\`)`),
' else ',
block(`return v`)))));
block(`return v`))])));
functions.push(
mod.defineFunction(ctx =>
seq(`export function decode${name.description!}`,
`(d: _.TypedDecoder<_ptr>): ${name.description!} | undefined `,
collectBody(() => {
emit(seq(`let result`));
decoderFor(def, 'result');
emit(seq(`return result`));
})));
ctx.block(() => [seq(`let result`),
... decoderFor(ctx, def, 'result'),
seq(`return result`)])));
}
types.push(seq('export type _ptr = ', pointerName === false ? 'never' : typeFor(pointerName), `;`));
types.push(`export type _val = _.Value<_ptr>;`);
functions.push(seq(`export const _decodePtr = `,
(pointerName === false
? '() => { throw new _.DecodeError("Pointers forbidden"); }'
: seq(`(d: _.TypedDecoder<_ptr>) => `,
collectBody(() => {
emit(seq(`let result`));
decoderFor(pointerName, 'result');
emit(seq(`return result`));
}))),
const pointerName = Schema._._field0(schema).get(M.$pointer);
mod.defineType(seq(`export type _ptr = `,
pointerName === false ? 'never' : typeFor(mod, pointerName),
`;`));
mod.defineType(`export type _val = _.Value<_ptr>;`);
mod.defineFunction(ctx =>
seq(`export const _decodePtr = `,
(pointerName === false
? '() => { throw new _.DecodeError("Pointers forbidden"); }'
: seq(`(d: _.TypedDecoder<_ptr>) => `, ctx.block(() => [
seq(`let result`),
... decoderFor(ctx, pointerName, 'result'),
seq(`return result`)]))),
`;`));
const f = new Formatter();
f.write(`import * as _ from ${JSON.stringify(options.preservesModule ?? '@preserves/core')};\n`);
imports.forEach(([identifier, path]) => {
mod.imports.forEach(([identifier, path]) => {
f.write(`import * as ${identifier} from ${JSON.stringify(path)};\n`);
});
f.newline();
const sortedLiterals = Array.from(literals);
const sortedLiterals = Array.from(mod.literals);
sortedLiterals.sort((a, b) => a[1] < b[1] ? -1 : a[1] === b[1] ? 0 : 1);
for (const [lit, varname] of sortedLiterals) {
f.write(seq(`export const ${varname} = `, sourceCodeFor(lit), `;\n`));
}
f.newline();
types.forEach(t => {
mod.typedefs.forEach(t => {
f.write(t);
f.newline();
f.newline();
});
f.newline();
functions.forEach(p => {
mod.functiondefs.forEach(p => {
f.write(p);
f.newline();
f.newline();

350
implementations/javascript/packages/schema/src/gen/schema.ts
View File

@ -144,20 +144,20 @@ export function asSchema(v: any): Schema {
export function decodeSchema(d: _.TypedDecoder<_ptr>): Schema | undefined {
let result;
if (d.openRecord()) {
let _tmp3: any;
_tmp3 = _.asLiteral(d.nextSymbol(), $schema);
if (_tmp3 !== void 0) {
let _tmp4, _tmp5, _tmp6, _tmp7, _tmp8: any;
_tmp5 = d.next();
if (_tmp5 !== void 0 && !((
_.Dictionary.isDictionary<_ptr>(_tmp5) &&
((_tmp6 = _tmp5.get($version)) !== void 0 && isVersion(_tmp6)) &&
((_tmp7 = _tmp5.get($pointer)) !== void 0 && isPointerName(_tmp7)) &&
let _tmp0: any;
_tmp0 = _.asLiteral(d.nextSymbol(), $schema);
if (_tmp0 !== void 0) {
let _tmp1, _tmp2, _tmp3, _tmp4, _tmp5: any;
_tmp2 = d.next();
if (_tmp2 !== void 0 && !((
_.Dictionary.isDictionary<_ptr>(_tmp2) &&
((_tmp3 = _tmp2.get($version)) !== void 0 && isVersion(_tmp3)) &&
((_tmp4 = _tmp2.get($pointer)) !== void 0 && isPointerName(_tmp4)) &&
(
(_tmp8 = _tmp5.get($definitions)) !== void 0 && (
_.Dictionary.isDictionary<_ptr>(_tmp8) &&
(_tmp5 = _tmp2.get($definitions)) !== void 0 && (
_.Dictionary.isDictionary<_ptr>(_tmp5) &&
((() => {
for (const e of _tmp8) {
for (const e of _tmp5) {
if (!(typeof e[0] === 'symbol')) return false;
if (!(isDefinition(e[1]))) return false;
};
@ -165,9 +165,9 @@ export function decodeSchema(d: _.TypedDecoder<_ptr>): Schema | undefined {
})())
)
)
))) _tmp5 = void 0;
if (_tmp5 !== void 0) {
if (d.closeCompound()) _tmp4 = [_tmp5] as [
))) _tmp2 = void 0;
if (_tmp2 !== void 0) {
if (d.closeCompound()) _tmp1 = [_tmp2] as [
(
{
get(k: typeof $version): Version;
@ -180,7 +180,7 @@ export function decodeSchema(d: _.TypedDecoder<_ptr>): Schema | undefined {
)
];
};
if (_tmp4 !== void 0) result = _.Record<
if (_tmp1 !== void 0) result = _.Record<
(typeof $schema),
[
(
@ -194,7 +194,7 @@ export function decodeSchema(d: _.TypedDecoder<_ptr>): Schema | undefined {
} & _.Dictionary<_ptr>
)
]
>(_tmp3 as any, _tmp4 as any);
>(_tmp0 as any, _tmp1 as any);
};
};
return result;
@ -215,11 +215,11 @@ export function asPointerName(v: any): PointerName {
}
export function decodePointerName(d: _.TypedDecoder<_ptr>): PointerName | undefined {
let _tmp9: any;
let _tmp0: any;
let result;
_tmp9 = d.mark();
_tmp0 = d.mark();
result = decodeRef(d);
if (result === void 0) {d.restoreMark(_tmp9); result = _.asLiteral(d.nextBoolean(), __lit5);};
if (result === void 0) {d.restoreMark(_tmp0); result = _.asLiteral(d.nextBoolean(), __lit5);};
return result;
}
@ -247,32 +247,32 @@ export function asDefinition(v: any): Definition {
}
export function decodeDefinition(d: _.TypedDecoder<_ptr>): Definition | undefined {
let _tmp10: any;
let _tmp0: any;
let result;
_tmp10 = d.mark();
_tmp0 = d.mark();
if (d.openRecord()) {
let _tmp11: any;
_tmp11 = _.asLiteral(d.nextSymbol(), $or);
if (_tmp11 !== void 0) {
let _tmp12, _tmp13: any;
let _tmp1: any;
_tmp1 = _.asLiteral(d.nextSymbol(), $or);
if (_tmp1 !== void 0) {
let _tmp2, _tmp3: any;
if (d.openSequence()) {
let _tmp14: any;
let _tmp4: any;
{
let vN: Array<NamedAlternative> | undefined = [];
while (!d.closeCompound()) {
_tmp14 = void 0;
_tmp14 = decodeNamedAlternative(d);
if (_tmp14 === void 0) {vN = void 0; break;};
vN.push(_tmp14);
_tmp4 = void 0;
_tmp4 = decodeNamedAlternative(d);
if (_tmp4 === void 0) {vN = void 0; break;};
vN.push(_tmp4);
};
_tmp13 = vN;
_tmp3 = vN;
};
};
if (_tmp13 !== void 0) {if (d.closeCompound()) _tmp12 = [_tmp13] as [Array<NamedAlternative>];};
if (_tmp12 !== void 0) result = _.Record<(typeof $or), [Array<NamedAlternative>]>(_tmp11 as any, _tmp12 as any);
if (_tmp3 !== void 0) {if (d.closeCompound()) _tmp2 = [_tmp3] as [Array<NamedAlternative>];};
if (_tmp2 !== void 0) result = _.Record<(typeof $or), [Array<NamedAlternative>]>(_tmp1 as any, _tmp2 as any);
};
};
if (result === void 0) {d.restoreMark(_tmp10); result = decodeAlternative(d);};
if (result === void 0) {d.restoreMark(_tmp0); result = decodeAlternative(d);};
return result;
}
@ -291,13 +291,13 @@ export function asNamedAlternative(v: any): NamedAlternative {
}
export function decodeNamedAlternative(d: _.TypedDecoder<_ptr>): NamedAlternative | undefined {
let _tmp15, _tmp16: any;
let _tmp0, _tmp1: any;
let result;
if (d.openSequence()) {
_tmp15 = d.nextSymbol();
if (_tmp15 !== void 0) {
_tmp16 = decodeAlternative(d);
if (_tmp16 !== void 0) {if (d.closeCompound()) result = [_tmp15, _tmp16] as [symbol, Alternative];};
_tmp0 = d.nextSymbol();
if (_tmp0 !== void 0) {
_tmp1 = decodeAlternative(d);
if (_tmp1 !== void 0) {if (d.closeCompound()) result = [_tmp0, _tmp1] as [symbol, Alternative];};
};
};
return result;
@ -327,32 +327,32 @@ export function asAlternative(v: any): Alternative {
}
export function decodeAlternative(d: _.TypedDecoder<_ptr>): Alternative | undefined {
let _tmp17: any;
let _tmp0: any;
let result;
_tmp17 = d.mark();
_tmp0 = d.mark();
if (d.openRecord()) {
let _tmp18: any;
_tmp18 = _.asLiteral(d.nextSymbol(), $and);
if (_tmp18 !== void 0) {
let _tmp19, _tmp20: any;
let _tmp1: any;
_tmp1 = _.asLiteral(d.nextSymbol(), $and);
if (_tmp1 !== void 0) {
let _tmp2, _tmp3: any;
if (d.openSequence()) {
let _tmp21: any;
let _tmp4: any;
{
let vN: Array<Pattern> | undefined = [];
while (!d.closeCompound()) {
_tmp21 = void 0;
_tmp21 = decodePattern(d);
if (_tmp21 === void 0) {vN = void 0; break;};
vN.push(_tmp21);
_tmp4 = void 0;
_tmp4 = decodePattern(d);
if (_tmp4 === void 0) {vN = void 0; break;};
vN.push(_tmp4);
};
_tmp20 = vN;
_tmp3 = vN;
};
};
if (_tmp20 !== void 0) {if (d.closeCompound()) _tmp19 = [_tmp20] as [Array<Pattern>];};
if (_tmp19 !== void 0) result = _.Record<(typeof $and), [Array<Pattern>]>(_tmp18 as any, _tmp19 as any);
if (_tmp3 !== void 0) {if (d.closeCompound()) _tmp2 = [_tmp3] as [Array<Pattern>];};
if (_tmp2 !== void 0) result = _.Record<(typeof $and), [Array<Pattern>]>(_tmp1 as any, _tmp2 as any);
};
};
if (result === void 0) {d.restoreMark(_tmp17); result = decodePattern(d);};
if (result === void 0) {d.restoreMark(_tmp0); result = decodePattern(d);};
return result;
}
@ -363,11 +363,11 @@ export function asPattern(v: any): Pattern {
}
export function decodePattern(d: _.TypedDecoder<_ptr>): Pattern | undefined {
let _tmp22: any;
let _tmp0: any;
let result;
_tmp22 = d.mark();
_tmp0 = d.mark();
result = decodeSimplePattern(d);
if (result === void 0) {d.restoreMark(_tmp22); result = decodeCompoundPattern(d);};
if (result === void 0) {d.restoreMark(_tmp0); result = decodeCompoundPattern(d);};
return result;
}
@ -391,40 +391,40 @@ export function asSimplePattern(v: any): SimplePattern {
export function decodeSimplePattern(d: _.TypedDecoder<_ptr>): SimplePattern | undefined {
let result;
if (d.openRecord()) {
let _tmp23, _tmp24: any;
_tmp23 = d.next();
_tmp24 = d.mark();
if (_.is(_tmp23, $atom)) {
let _tmp25, _tmp26: any;
_tmp26 = decodeAtomKind(d);
if (_tmp26 !== void 0) {if (d.closeCompound()) _tmp25 = [_tmp26] as [AtomKind];};
if (_tmp25 !== void 0) result = _.Record<(typeof $atom), [AtomKind]>(_tmp23 as any, _tmp25 as any);
let _tmp0, _tmp1: any;
_tmp0 = d.next();
_tmp1 = d.mark();
if (_.is(_tmp0, $atom)) {
let _tmp2, _tmp3: any;
_tmp3 = decodeAtomKind(d);
if (_tmp3 !== void 0) {if (d.closeCompound()) _tmp2 = [_tmp3] as [AtomKind];};
if (_tmp2 !== void 0) result = _.Record<(typeof $atom), [AtomKind]>(_tmp0 as any, _tmp2 as any);
};
if (result === void 0) {
d.restoreMark(_tmp24);
if (_.is(_tmp23, $pointer)) {
let _tmp27: any;
if (d.closeCompound()) _tmp27 = [] as [];
if (_tmp27 !== void 0) result = _.Record<(typeof $pointer), []>(_tmp23 as any, _tmp27 as any);
d.restoreMark(_tmp1);
if (_.is(_tmp0, $pointer)) {
let _tmp4: any;
if (d.closeCompound()) _tmp4 = [] as [];
if (_tmp4 !== void 0) result = _.Record<(typeof $pointer), []>(_tmp0 as any, _tmp4 as any);
};
if (result === void 0) {
d.restoreMark(_tmp24);
if (_.is(_tmp23, $lit)) {
let _tmp28, _tmp29: any;
_tmp29 = d.next();
if (_tmp29 !== void 0) {if (d.closeCompound()) _tmp28 = [_tmp29] as [_val];};
if (_tmp28 !== void 0) result = _.Record<(typeof $lit), [_val]>(_tmp23 as any, _tmp28 as any);
d.restoreMark(_tmp1);
if (_.is(_tmp0, $lit)) {
let _tmp5, _tmp6: any;
_tmp6 = d.next();
if (_tmp6 !== void 0) {if (d.closeCompound()) _tmp5 = [_tmp6] as [_val];};
if (_tmp5 !== void 0) result = _.Record<(typeof $lit), [_val]>(_tmp0 as any, _tmp5 as any);
};
if (result === void 0) {
d.restoreMark(_tmp24);
if (_.is(_tmp23, $ref)) {
let _tmp30, _tmp31, _tmp32: any;
_tmp31 = decodeModulePath(d);
if (_tmp31 !== void 0) {
_tmp32 = d.nextSymbol();
if (_tmp32 !== void 0) {if (d.closeCompound()) _tmp30 = [_tmp31, _tmp32] as [ModulePath, symbol];};
d.restoreMark(_tmp1);
if (_.is(_tmp0, $ref)) {
let _tmp7, _tmp8, _tmp9: any;
_tmp8 = decodeModulePath(d);
if (_tmp8 !== void 0) {
_tmp9 = d.nextSymbol();
if (_tmp9 !== void 0) {if (d.closeCompound()) _tmp7 = [_tmp8, _tmp9] as [ModulePath, symbol];};
};
if (_tmp30 !== void 0) result = _.Record<(typeof $ref), [ModulePath, symbol]>(_tmp23 as any, _tmp30 as any);
if (_tmp7 !== void 0) result = _.Record<(typeof $ref), [ModulePath, symbol]>(_tmp0 as any, _tmp7 as any);
};
};
};
@ -478,91 +478,91 @@ export function asCompoundPattern(v: any): CompoundPattern {
export function decodeCompoundPattern(d: _.TypedDecoder<_ptr>): CompoundPattern | undefined {
let result;
if (d.openRecord()) {
let _tmp33, _tmp34: any;
_tmp33 = d.next();
_tmp34 = d.mark();
if (_.is(_tmp33, $rec)) {
let _tmp35, _tmp36, _tmp37: any;
_tmp36 = decodePattern(d);
if (_tmp36 !== void 0) {
_tmp37 = decodePattern(d);
if (_tmp37 !== void 0) {if (d.closeCompound()) _tmp35 = [_tmp36, _tmp37] as [Pattern, Pattern];};
let _tmp0, _tmp1: any;
_tmp0 = d.next();
_tmp1 = d.mark();
if (_.is(_tmp0, $rec)) {
let _tmp2, _tmp3, _tmp4: any;
_tmp3 = decodePattern(d);
if (_tmp3 !== void 0) {
_tmp4 = decodePattern(d);
if (_tmp4 !== void 0) {if (d.closeCompound()) _tmp2 = [_tmp3, _tmp4] as [Pattern, Pattern];};
};
if (_tmp35 !== void 0) result = _.Record<(typeof $rec), [Pattern, Pattern]>(_tmp33 as any, _tmp35 as any);
if (_tmp2 !== void 0) result = _.Record<(typeof $rec), [Pattern, Pattern]>(_tmp0 as any, _tmp2 as any);
};
if (result === void 0) {
d.restoreMark(_tmp34);
if (_.is(_tmp33, $tuple)) {
let _tmp38, _tmp39: any;
d.restoreMark(_tmp1);
if (_.is(_tmp0, $tuple)) {
let _tmp5, _tmp6: any;
if (d.openSequence()) {
let _tmp40: any;
let _tmp7: any;
{
let vN: Array<NamedPattern> | undefined = [];
while (!d.closeCompound()) {
_tmp40 = void 0;
_tmp40 = decodeNamedPattern(d);
if (_tmp40 === void 0) {vN = void 0; break;};
vN.push(_tmp40);
_tmp7 = void 0;
_tmp7 = decodeNamedPattern(d);
if (_tmp7 === void 0) {vN = void 0; break;};
vN.push(_tmp7);
};
_tmp39 = vN;
_tmp6 = vN;
};
};
if (_tmp39 !== void 0) {if (d.closeCompound()) _tmp38 = [_tmp39] as [Array<NamedPattern>];};
if (_tmp38 !== void 0) result = _.Record<(typeof $tuple), [Array<NamedPattern>]>(_tmp33 as any, _tmp38 as any);
if (_tmp6 !== void 0) {if (d.closeCompound()) _tmp5 = [_tmp6] as [Array<NamedPattern>];};
if (_tmp5 !== void 0) result = _.Record<(typeof $tuple), [Array<NamedPattern>]>(_tmp0 as any, _tmp5 as any);
};
if (result === void 0) {
d.restoreMark(_tmp34);
if (_.is(_tmp33, $tuple_STAR_)) {
let _tmp41, _tmp42, _tmp43: any;
d.restoreMark(_tmp1);
if (_.is(_tmp0, $tuple_STAR_)) {
let _tmp8, _tmp9, _tmp10: any;
if (d.openSequence()) {
let _tmp44: any;
let _tmp11: any;
{
let vN: Array<NamedPattern> | undefined = [];
while (!d.closeCompound()) {
_tmp44 = void 0;
_tmp44 = decodeNamedPattern(d);
if (_tmp44 === void 0) {vN = void 0; break;};
vN.push(_tmp44);
_tmp11 = void 0;
_tmp11 = decodeNamedPattern(d);
if (_tmp11 === void 0) {vN = void 0; break;};
vN.push(_tmp11);
};
_tmp42 = vN;
_tmp9 = vN;
};
};
if (_tmp42 !== void 0) {
_tmp43 = decodeNamedPattern(d);
if (_tmp43 !== void 0) {
if (d.closeCompound()) _tmp41 = [_tmp42, _tmp43] as [Array<NamedPattern>, NamedPattern];
if (_tmp9 !== void 0) {
_tmp10 = decodeNamedPattern(d);
if (_tmp10 !== void 0) {
if (d.closeCompound()) _tmp8 = [_tmp9, _tmp10] as [Array<NamedPattern>, NamedPattern];
};
};
if (_tmp41 !== void 0) result = _.Record<(typeof $tuple_STAR_), [Array<NamedPattern>, NamedPattern]>(_tmp33 as any, _tmp41 as any);
if (_tmp8 !== void 0) result = _.Record<(typeof $tuple_STAR_), [Array<NamedPattern>, NamedPattern]>(_tmp0 as any, _tmp8 as any);
};
if (result === void 0) {
d.restoreMark(_tmp34);
if (_.is(_tmp33, $setof)) {
let _tmp45, _tmp46: any;
_tmp46 = decodeSimplePattern(d);
if (_tmp46 !== void 0) {if (d.closeCompound()) _tmp45 = [_tmp46] as [SimplePattern];};
if (_tmp45 !== void 0) result = _.Record<(typeof $setof), [SimplePattern]>(_tmp33 as any, _tmp45 as any);
d.restoreMark(_tmp1);
if (_.is(_tmp0, $setof)) {
let _tmp12, _tmp13: any;
_tmp13 = decodeSimplePattern(d);
if (_tmp13 !== void 0) {if (d.closeCompound()) _tmp12 = [_tmp13] as [SimplePattern];};
if (_tmp12 !== void 0) result = _.Record<(typeof $setof), [SimplePattern]>(_tmp0 as any, _tmp12 as any);
};
if (result === void 0) {
d.restoreMark(_tmp34);
if (_.is(_tmp33, $dictof)) {
let _tmp47, _tmp48, _tmp49: any;
_tmp48 = decodeSimplePattern(d);
if (_tmp48 !== void 0) {
_tmp49 = decodeSimplePattern(d);
if (_tmp49 !== void 0) {
if (d.closeCompound()) _tmp47 = [_tmp48, _tmp49] as [SimplePattern, SimplePattern];
d.restoreMark(_tmp1);
if (_.is(_tmp0, $dictof)) {
let _tmp14, _tmp15, _tmp16: any;
_tmp15 = decodeSimplePattern(d);
if (_tmp15 !== void 0) {
_tmp16 = decodeSimplePattern(d);
if (_tmp16 !== void 0) {
if (d.closeCompound()) _tmp14 = [_tmp15, _tmp16] as [SimplePattern, SimplePattern];
};
};
if (_tmp47 !== void 0) result = _.Record<(typeof $dictof), [SimplePattern, SimplePattern]>(_tmp33 as any, _tmp47 as any);
if (_tmp14 !== void 0) result = _.Record<(typeof $dictof), [SimplePattern, SimplePattern]>(_tmp0 as any, _tmp14 as any);
};
if (result === void 0) {
d.restoreMark(_tmp34);
if (_.is(_tmp33, $dict)) {
let _tmp50, _tmp51: any;
_tmp51 = decodeDictionaryEntries(d);
if (_tmp51 !== void 0) {if (d.closeCompound()) _tmp50 = [_tmp51] as [DictionaryEntries];};
if (_tmp50 !== void 0) result = _.Record<(typeof $dict), [DictionaryEntries]>(_tmp33 as any, _tmp50 as any);
d.restoreMark(_tmp1);
if (_.is(_tmp0, $dict)) {
let _tmp17, _tmp18: any;
_tmp18 = decodeDictionaryEntries(d);
if (_tmp18 !== void 0) {if (d.closeCompound()) _tmp17 = [_tmp18] as [DictionaryEntries];};
if (_tmp17 !== void 0) result = _.Record<(typeof $dict), [DictionaryEntries]>(_tmp0 as any, _tmp17 as any);
};
};
};
@ -622,26 +622,26 @@ export function asAtomKind(v: any): AtomKind {
}
export function decodeAtomKind(d: _.TypedDecoder<_ptr>): AtomKind | undefined {
let _tmp52: any;
let _tmp0: any;
let result;
_tmp52 = d.mark();
_tmp0 = d.mark();
result = _.asLiteral(d.nextSymbol(), $Boolean);
if (result === void 0) {
d.restoreMark(_tmp52);
d.restoreMark(_tmp0);
result = _.asLiteral(d.nextSymbol(), $Float);
if (result === void 0) {
d.restoreMark(_tmp52);
d.restoreMark(_tmp0);
result = _.asLiteral(d.nextSymbol(), $Double);
if (result === void 0) {
d.restoreMark(_tmp52);
d.restoreMark(_tmp0);
result = _.asLiteral(d.nextSymbol(), $SignedInteger);
if (result === void 0) {
d.restoreMark(_tmp52);
d.restoreMark(_tmp0);
result = _.asLiteral(d.nextSymbol(), $String);
if (result === void 0) {
d.restoreMark(_tmp52);
d.restoreMark(_tmp0);
result = _.asLiteral(d.nextSymbol(), $ByteString);
if (result === void 0) {d.restoreMark(_tmp52); result = _.asLiteral(d.nextSymbol(), $Symbol);};
if (result === void 0) {d.restoreMark(_tmp0); result = _.asLiteral(d.nextSymbol(), $Symbol);};
};
};
};
@ -666,23 +666,23 @@ export function asNamedPattern(v: any): NamedPattern {
}
export function decodeNamedPattern(d: _.TypedDecoder<_ptr>): NamedPattern | undefined {
let _tmp53: any;
let _tmp0: any;
let result;
_tmp53 = d.mark();
_tmp0 = d.mark();
if (d.openRecord()) {
let _tmp54: any;
_tmp54 = _.asLiteral(d.nextSymbol(), $named);
if (_tmp54 !== void 0) {
let _tmp55, _tmp56, _tmp57: any;
_tmp56 = d.nextSymbol();
if (_tmp56 !== void 0) {
_tmp57 = decodeSimplePattern(d);
if (_tmp57 !== void 0) {if (d.closeCompound()) _tmp55 = [_tmp56, _tmp57] as [symbol, SimplePattern];};
let _tmp1: any;
_tmp1 = _.asLiteral(d.nextSymbol(), $named);
if (_tmp1 !== void 0) {
let _tmp2, _tmp3, _tmp4: any;
_tmp3 = d.nextSymbol();
if (_tmp3 !== void 0) {
_tmp4 = decodeSimplePattern(d);
if (_tmp4 !== void 0) {if (d.closeCompound()) _tmp2 = [_tmp3, _tmp4] as [symbol, SimplePattern];};
};
if (_tmp55 !== void 0) result = _.Record<(typeof $named), [symbol, SimplePattern]>(_tmp54 as any, _tmp55 as any);
if (_tmp2 !== void 0) result = _.Record<(typeof $named), [symbol, SimplePattern]>(_tmp1 as any, _tmp2 as any);
};
};
if (result === void 0) {d.restoreMark(_tmp53); result = decodePattern(d);};
if (result === void 0) {d.restoreMark(_tmp0); result = decodePattern(d);};
return result;
}
@ -701,16 +701,16 @@ export function asRef(v: any): Ref {
export function decodeRef(d: _.TypedDecoder<_ptr>): Ref | undefined {
let result;
if (d.openRecord()) {
let _tmp58: any;
_tmp58 = _.asLiteral(d.nextSymbol(), $ref);
if (_tmp58 !== void 0) {
let _tmp59, _tmp60, _tmp61: any;
_tmp60 = decodeModulePath(d);
if (_tmp60 !== void 0) {
_tmp61 = d.nextSymbol();
if (_tmp61 !== void 0) {if (d.closeCompound()) _tmp59 = [_tmp60, _tmp61] as [ModulePath, symbol];};
let _tmp0: any;
_tmp0 = _.asLiteral(d.nextSymbol(), $ref);
if (_tmp0 !== void 0) {
let _tmp1, _tmp2, _tmp3: any;
_tmp2 = decodeModulePath(d);
if (_tmp2 !== void 0) {
_tmp3 = d.nextSymbol();
if (_tmp3 !== void 0) {if (d.closeCompound()) _tmp1 = [_tmp2, _tmp3] as [ModulePath, symbol];};
};
if (_tmp59 !== void 0) result = _.Record<(typeof $ref), [ModulePath, symbol]>(_tmp58 as any, _tmp59 as any);
if (_tmp1 !== void 0) result = _.Record<(typeof $ref), [ModulePath, symbol]>(_tmp0 as any, _tmp1 as any);
};
};
return result;
@ -732,14 +732,14 @@ export function asModulePath(v: any): ModulePath {
export function decodeModulePath(d: _.TypedDecoder<_ptr>): ModulePath | undefined {
let result;
if (d.openSequence()) {
let _tmp62: any;
let _tmp0: any;
{
let vN: Array<symbol> | undefined = [];
while (!d.closeCompound()) {
_tmp62 = void 0;
_tmp62 = d.nextSymbol();
if (_tmp62 === void 0) {vN = void 0; break;};
vN.push(_tmp62);
_tmp0 = void 0;
_tmp0 = d.nextSymbol();
if (_tmp0 === void 0) {vN = void 0; break;};
vN.push(_tmp0);
};
result = vN;
};

2
implementations/javascript/packages/schema/src/meta.ts
View File

@ -43,7 +43,7 @@ export function lookup<R>(namePos: Position | null,
env: Environment,
kLocal: (p: Definition) => R,
kBase: (p: Alternative) => R,
kOther: (mod: string, modPath: string, p: Definition | null) => R): R
kOther: (modId: string, modPath: string, p: Definition | null) => R): R
{
for (const e of env) {
if (is(e.schemaModulePath, Ref._.module(name)) ||