109 lines
2.7 KiB
JavaScript
109 lines
2.7 KiB
JavaScript
import constant from './constant';
|
|
import array from './array';
|
|
import resolve from '../resolve';
|
|
import { getFromScope } from '/imports/api/creature/creatures/CreatureVariables';
|
|
|
|
const accessor = {
|
|
create({ name, path }) {
|
|
return {
|
|
parseType: 'accessor',
|
|
path,
|
|
name,
|
|
};
|
|
},
|
|
compile(node, scope, context) {
|
|
let value = getFromScope(node.name, scope);
|
|
// Get the value from the given path
|
|
node.path?.forEach(name => {
|
|
if (value === undefined) return;
|
|
value = value[name];
|
|
});
|
|
let valueType = getType(value);
|
|
// If the accessor returns an object, get the object's value instead
|
|
while (valueType === 'object') {
|
|
// Prefer the valueNode over the value
|
|
if (value.valueNode) {
|
|
value = value.valueNode;
|
|
} else {
|
|
value = value.value;
|
|
}
|
|
valueType = getType(value);
|
|
}
|
|
// Return a discovered parse node
|
|
if (valueType === 'parseNode') {
|
|
return {
|
|
result: value,
|
|
context,
|
|
};
|
|
}
|
|
// Return a parse node based on the constant type returned
|
|
if (valueType === 'string' || valueType === 'number' || valueType === 'boolean') {
|
|
return {
|
|
result: constant.create({ value }),
|
|
context,
|
|
};
|
|
}
|
|
// Return a parser array
|
|
if (valueType === 'array') {
|
|
// If the first value is a parse node, assume all the values are
|
|
if (getType(value[0]) === 'parseNode') {
|
|
return {
|
|
result: array.create({
|
|
values: value,
|
|
}),
|
|
context,
|
|
};
|
|
}
|
|
// Create the array from js primitives instead
|
|
return {
|
|
result: array.fromConstantArray(value),
|
|
context,
|
|
};
|
|
}
|
|
if (valueType === 'undefined') {
|
|
// Undefined defaults to zero
|
|
return {
|
|
result: constant.create({
|
|
value: 0,
|
|
}),
|
|
context
|
|
};
|
|
}
|
|
context.error(`Accessing ${accessor.toString(node)} is not supported yet`);
|
|
return {
|
|
result: accessor.create({
|
|
name: node.name,
|
|
path: node.path,
|
|
}),
|
|
context,
|
|
};
|
|
},
|
|
reduce(node, scope, context) {
|
|
let { result } = accessor.compile(node, scope, context);
|
|
({ result } = resolve('reduce', result, scope, context));
|
|
if (result.parseType === 'accessor') {
|
|
return {
|
|
result: constant.create({
|
|
value: 0,
|
|
}),
|
|
context
|
|
};
|
|
} else {
|
|
return { result, context };
|
|
}
|
|
},
|
|
toString(node) {
|
|
if (!node.path) return `${node.name}`;
|
|
return `${node.name}.${node.path.join('.')}`;
|
|
}
|
|
}
|
|
|
|
function getType(val) {
|
|
if (!val) return typeof val;
|
|
if (Array.isArray(val)) return 'array';
|
|
if (val.parseType) return 'parseNode';
|
|
return typeof val;
|
|
}
|
|
|
|
export default accessor;
|