/
ArrayPrototype.ts
159 lines (146 loc) · 4.71 KB
/
ArrayPrototype.ts
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import { UnknownInteger } from '../../utils/PathTracker';
import { UNKNOWN_LITERAL_BOOLEAN, UNKNOWN_LITERAL_NUMBER } from '../../values';
import { ExpressionEntity, UNKNOWN_EXPRESSION } from './Expression';
import {
Method,
METHOD_RETURNS_BOOLEAN,
METHOD_RETURNS_NUMBER,
METHOD_RETURNS_STRING,
METHOD_RETURNS_UNKNOWN
} from './MethodTypes';
import { ObjectEntity, ObjectProperty, PropertyMap } from './ObjectEntity';
import { OBJECT_PROTOTYPE } from './ObjectPrototype';
const NEW_ARRAY_PROPERTIES: ObjectProperty[] = [
{ key: UnknownInteger, kind: 'init', property: UNKNOWN_EXPRESSION },
{ key: 'length', kind: 'init', property: UNKNOWN_LITERAL_NUMBER }
];
const METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_BOOLEAN: [ExpressionEntity] = [
new Method({
callsArgs: [0],
mutatesSelfAsArray: 'deopt-only',
returns: null,
returnsPrimitive: UNKNOWN_LITERAL_BOOLEAN
})
];
const METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_NUMBER: [ExpressionEntity] = [
new Method({
callsArgs: [0],
mutatesSelfAsArray: 'deopt-only',
returns: null,
returnsPrimitive: UNKNOWN_LITERAL_NUMBER
})
];
const METHOD_MUTATES_SELF_RETURNS_NEW_ARRAY: [ExpressionEntity] = [
new Method({
callsArgs: null,
mutatesSelfAsArray: true,
returns: () => new ObjectEntity(NEW_ARRAY_PROPERTIES, ARRAY_PROTOTYPE),
returnsPrimitive: null
})
];
const METHOD_DEOPTS_SELF_RETURNS_NEW_ARRAY: [ExpressionEntity] = [
new Method({
callsArgs: null,
mutatesSelfAsArray: 'deopt-only',
returns: () => new ObjectEntity(NEW_ARRAY_PROPERTIES, ARRAY_PROTOTYPE),
returnsPrimitive: null
})
];
const METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_NEW_ARRAY: [ExpressionEntity] = [
new Method({
callsArgs: [0],
mutatesSelfAsArray: 'deopt-only',
returns: () => new ObjectEntity(NEW_ARRAY_PROPERTIES, ARRAY_PROTOTYPE),
returnsPrimitive: null
})
];
const METHOD_MUTATES_SELF_RETURNS_NUMBER: [ExpressionEntity] = [
new Method({
callsArgs: null,
mutatesSelfAsArray: true,
returns: null,
returnsPrimitive: UNKNOWN_LITERAL_NUMBER
})
];
const METHOD_MUTATES_SELF_RETURNS_UNKNOWN: [ExpressionEntity] = [
new Method({
callsArgs: null,
mutatesSelfAsArray: true,
returns: null,
returnsPrimitive: UNKNOWN_EXPRESSION
})
];
const METHOD_DEOPTS_SELF_RETURNS_UNKNOWN: [ExpressionEntity] = [
new Method({
callsArgs: null,
mutatesSelfAsArray: 'deopt-only',
returns: null,
returnsPrimitive: UNKNOWN_EXPRESSION
})
];
const METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_UNKNOWN: [ExpressionEntity] = [
new Method({
callsArgs: [0],
mutatesSelfAsArray: 'deopt-only',
returns: null,
returnsPrimitive: UNKNOWN_EXPRESSION
})
];
const METHOD_MUTATES_SELF_RETURNS_SELF: [ExpressionEntity] = [
new Method({
callsArgs: null,
mutatesSelfAsArray: true,
returns: 'self',
returnsPrimitive: null
})
];
const METHOD_CALLS_ARG_MUTATES_SELF_RETURNS_SELF: [ExpressionEntity] = [
new Method({
callsArgs: [0],
mutatesSelfAsArray: true,
returns: 'self',
returnsPrimitive: null
})
];
export const ARRAY_PROTOTYPE = new ObjectEntity(
{
__proto__: null,
// We assume that accessors have effects as we do not track the accessed value afterwards
at: METHOD_DEOPTS_SELF_RETURNS_UNKNOWN,
concat: METHOD_DEOPTS_SELF_RETURNS_NEW_ARRAY,
copyWithin: METHOD_MUTATES_SELF_RETURNS_SELF,
entries: METHOD_DEOPTS_SELF_RETURNS_NEW_ARRAY,
every: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_BOOLEAN,
fill: METHOD_MUTATES_SELF_RETURNS_SELF,
filter: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_NEW_ARRAY,
find: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_UNKNOWN,
findIndex: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_NUMBER,
findLast: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_UNKNOWN,
findLastIndex: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_NUMBER,
flat: METHOD_DEOPTS_SELF_RETURNS_NEW_ARRAY,
flatMap: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_NEW_ARRAY,
forEach: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_UNKNOWN,
includes: METHOD_RETURNS_BOOLEAN,
indexOf: METHOD_RETURNS_NUMBER,
join: METHOD_RETURNS_STRING,
keys: METHOD_RETURNS_UNKNOWN,
lastIndexOf: METHOD_RETURNS_NUMBER,
map: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_NEW_ARRAY,
pop: METHOD_MUTATES_SELF_RETURNS_UNKNOWN,
push: METHOD_MUTATES_SELF_RETURNS_NUMBER,
reduce: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_UNKNOWN,
reduceRight: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_UNKNOWN,
reverse: METHOD_MUTATES_SELF_RETURNS_SELF,
shift: METHOD_MUTATES_SELF_RETURNS_UNKNOWN,
slice: METHOD_DEOPTS_SELF_RETURNS_NEW_ARRAY,
some: METHOD_CALLS_ARG_DEOPTS_SELF_RETURNS_BOOLEAN,
sort: METHOD_CALLS_ARG_MUTATES_SELF_RETURNS_SELF,
splice: METHOD_MUTATES_SELF_RETURNS_NEW_ARRAY,
toLocaleString: METHOD_RETURNS_STRING,
toString: METHOD_RETURNS_STRING,
unshift: METHOD_MUTATES_SELF_RETURNS_NUMBER,
values: METHOD_DEOPTS_SELF_RETURNS_UNKNOWN
} as unknown as PropertyMap,
OBJECT_PROTOTYPE,
true
);