add naive record construction support

This commit is contained in:
Lizzy Hunt 2024-03-05 15:36:31 -07:00
parent 5e9a34e642
commit 89db6cf917
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GPG Key ID: E835BD4B08CCAF96
5 changed files with 5651 additions and 5128 deletions

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@ -22,9 +22,14 @@ export type DenotableType =
| 'real'
| 'bool'
| 'string'
| 'record'
| 'bytearray'
| 'function'
| 'reference';
| 'function';
export type DenotableRecord = {
length: number;
record: Array<Denotable>;
};
export type DenotableValue =
| null
@ -32,6 +37,7 @@ export type DenotableValue =
| string
| Uint8Array
| DenotableFunction
| DenotableRecord
| Identifier;
export type Denotable = {

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@ -2,13 +2,17 @@ import {
type ContinuationExpression,
type PrimitiveOperationExpression,
type ApplicationExpression,
type RecordExpression,
type Program,
type Value,
type RecordExpressionTuple,
type SelectExpression,
} from '@/parser';
import { Environment, type Denotable } from '.';
import { Environment, type Denotable, type DenotableRecord } from '.';
import {
BadArgumentError,
InvalidStateError,
InvalidType,
NotImplementedError,
type TracingLogger,
} from '@/utils';
@ -112,6 +116,89 @@ const evaluatePrimitiveOperation = (
);
};
export const evaluateRecordTuple = (
tuple: RecordExpressionTuple,
env: Environment,
logger: TracingLogger,
): Denotable => {
const { value, accessPath } = tuple;
const record = evaluateValue(value, env, logger.createChild('evaluateValue'));
if (record.type === 'record') {
// TODO: Implement nested records at accessPath
logger.debug(JSON.stringify(accessPath, null, 2));
throw new NotImplementedError('Nested records are not yet supported');
}
return record;
};
export const evaluateRecordExpression = (
{ record }: RecordExpression,
env: Environment,
logger: TracingLogger,
): Denotable => {
const {
records,
address: { name: address },
body,
} = record;
const childEnv = env.createChild();
const recordTuple = records.map(record =>
evaluateRecordTuple(
record,
childEnv,
logger.createChild('evaluateRecordTuple'),
),
);
const length = recordTuple.length;
childEnv.set(address, {
type: 'record',
value: { length, record: recordTuple },
});
return evaluteContinuationExpression(
body,
childEnv,
logger.createChild('evaluteContinuationExpression'),
);
};
export const evaluateSelectExpression = (
{ select }: SelectExpression,
env: Environment,
logger: TracingLogger,
): Denotable => {
const {
index: { int: index },
record,
bind,
continuation,
} = select;
const childEnv = env.createChild();
const recordValue = evaluateValue(
record,
env,
logger.createChild('evaluateValue'),
);
if (recordValue.type !== 'record') {
throw new InvalidType('Expected record type');
}
const { value } = recordValue as { value: DenotableRecord };
const selected = value.record[index];
childEnv.set(bind.name, selected);
return evaluteContinuationExpression(
continuation,
childEnv,
logger.createChild('evaluteContinuationExpression'),
);
};
const evaluteContinuationExpression = (
expr: ContinuationExpression,
env: Environment,
@ -136,10 +223,20 @@ const evaluteContinuationExpression = (
}
if ('record' in expr) {
throw new NotImplementedError('Continuation records are not supported yet');
logger.debug('Evaluating record');
return evaluateRecordExpression(
expr,
env,
logger.createChild('evaluateRecordExpression'),
);
}
if ('select' in expr) {
throw new NotImplementedError('Continuation select is not supported yet');
logger.debug('Evaluating select');
return evaluateSelectExpression(
expr,
env,
logger.createChild('evaluateSelectExpression'),
);
}
if ('offset' in expr) {
throw new NotImplementedError('Continuation offset is not supported yet');

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@ -17,11 +17,11 @@ SelectExpression
_?
LPAREN
_?
record:Integer
index:Integer
_?
COMMA
_?
val:Value
record:VarStatement
_?
COMMA
_?
@ -31,7 +31,7 @@ SelectExpression
_?
continuation:ContinuationExpression
_?
RPAREN { return { select: { record, val, bind, continuation } }; }
RPAREN { return { select: { index, record, bind, continuation } }; }
OffsetExpression
= OFFSET
@ -86,9 +86,17 @@ SwitchExpression
RPAREN { return { switch: { switchIndex, continuations } }; }
ApplicationExpression
= APP _? LPAREN _? fn:(LabelStatement / VarStatement) _? COMMA _? args:ValueList _? RPAREN {
return { application: { fn, args } };
}
= APP
_?
LPAREN
_?
fn:(LabelStatement / VarStatement)
_?
COMMA
_?
args:ValueList
_?
RPAREN { return { application: { fn, args } }; }
FixBinding
= LPAREN
@ -169,16 +177,29 @@ PrimitiveOperationExpression
};
}
RecordExpressionTuple
= LPAREN
AccessPath
= OffsetPath
/ SelectPath
OffsetPath = OFFP _ offset:Integer { return { offset: offset.int }; }
SelectPath
= SELP
_?
value:Value
LPAREN
_?
index:Integer
_?
COMMA
_?
offset:OffsetStatement
accessPath:AccessPath
_?
RPAREN { return { value, offset }; }
RPAREN { return { select: { index, accessPath } }; }
RecordExpressionTuple
= LPAREN _? value:Value _? COMMA _? accessPath:AccessPath _? RPAREN {
return { value, accessPath };
}
RecordExpressionTupleList
= LBRACKET
@ -238,14 +259,6 @@ BoolStatement = BOOL _ bool:Integer { return { bool: bool.int }; }
StringStatement = STRING _ string:QuotedString { return string; }
AccessStatement
= OffsetStatement
/ SelectStatement
OffsetStatement = OFFP _ offset:Integer { return offset; }
SelectStatement = SELP _ offset:Integer { return offset; }
Identifier
= name:([A-Za-z] (LETTER / DIGIT / SAFE_SYMBOL)*) {
return { name: name[0] + name[1].join('') };
@ -291,7 +304,8 @@ ComparisonOperation
/ "||"
/ "&&"
Integer = digits:("-"? [0-9]+) !"." { return { int: parseInt(digits.join(''), 10) }; }
Integer
= digits:("-"? [0-9]+) !"." { return { int: parseInt(digits.join(''), 10) }; }
QuotedString
= "'" content:[^']* "'" { return content.join(''); }
@ -299,9 +313,11 @@ QuotedString
Real
= value:("-"? [0-9]+ ("." [0-9]+)?) {
return { real: parseFloat(
value.map(x => (Array.isArray(x) ? x.join('') : x)).join(''),
) };
return {
real: parseFloat(
value.map(x => (Array.isArray(x) ? x.join('') : x)).join(''),
),
};
}
Literal

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@ -1,6 +1,6 @@
RECORD([(INT 1, OFFp 0), (INT 2, OFFp 0)], record,
SELECT(0, VAR one, record,
SELECT(1, VAR two, record,
SELECT(0, VAR record, one,
SELECT(1, VAR record, two,
PRIMOP(+, [VAR one, VAR two], [result], [])
)
)