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handleImmutable.js
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handleImmutable.js
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'use strict';
const StrictModeError = require('../../error/strict');
/*!
* ignore
*/
module.exports = function(schematype) {
if (schematype.$immutable) {
schematype.$immutableSetter = createImmutableSetter(schematype.path,
schematype.options.immutable);
schematype.set(schematype.$immutableSetter);
} else if (schematype.$immutableSetter) {
schematype.setters = schematype.setters.
filter(fn => fn !== schematype.$immutableSetter);
delete schematype.$immutableSetter;
}
};
function createImmutableSetter(path, immutable) {
return function immutableSetter(v, _priorVal, _doc, options) {
if (this == null || this.$__ == null) {
return v;
}
if (this.isNew) {
return v;
}
if (options && options.overwriteImmutable) {
return v;
}
const _immutable = typeof immutable === 'function' ?
immutable.call(this, this) :
immutable;
if (!_immutable) {
return v;
}
const _value = this.$__.priorDoc != null ?
this.$__.priorDoc.$__getValue(path) :
this.$__getValue(path);
if (this.$__.strictMode === 'throw' && v !== _value) {
throw new StrictModeError(path, 'Path `' + path + '` is immutable ' +
'and strict mode is set to throw.', true);
}
return _value;
};
}