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EXPRESSION.js
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EXPRESSION.js
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const graph = require("../graph");
const Evaluation = require("../lang/Evaluation");
const NODE = require("./NODE");
const state = require("../state");
const serialize = require("../lib/serialize");
const { append } = require("../lang/estree/estree");
const Identifier = require("../lang/ast/Identifier");
class EXPRESSION {
constructor(tokens) {
this.iof = this.constructor.name;
this.tokens = tokens;
}
before(scope) {
this.tokens.map((node) => {
if (
node.type === "MemberExpression" &&
node.last.toString() === "value"
) {
const value = state.expression(scope, {
value: node.object.generate(scope),
});
const { parse } = require("../lang/estree/parser");
const newValue = parse(serialize(value, "state"), false);
Object.keys(node.node).forEach((key) => delete node.node[key]);
Object.assign(node.node, newValue);
}
});
}
run(scope, force = false) {
this.tokens.map((node) => {
try {
if (node.type === "CallExpression") {
const func = state.expression(scope, {
value: node.function.generate(scope),
});
if (func?.value) {
const value = state.expression(scope, {
value: node.generate(scope),
});
const { parse } = require("../lang/estree/parser");
const newNode = parse(serialize(value, "state"), false);
Object.keys(node.node).forEach((key) => delete node.node[key]);
Object.assign(node.node, newNode);
}
if (func?.write) {
this.tokens.wrt = true;
}
}
} catch (err) {} // eslint-disable-line no-empty
});
const expression = this.tokens.traverse((node) => {
const evaluation = node.generate(scope);
if (
scope.retrieve(node) ||
(node.type === "MemberExpression" && graph.retrieve(node.first))
) {
try {
const test = state.expression(scope, { value: evaluation });
if (test === undefined) {
return "undefined";
}
} catch (error) {
return "undefined";
}
}
return evaluation;
});
if (force || !expression.includes("undefined")) {
return new Evaluation(expression.join(""));
}
}
next() {
const Call = require("../lang/ast/Call");
return this.tokens.map((ast) => {
if (ast instanceof Call) {
const object = ast.object;
if (object) {
const node = graph.retrieve(object);
if (node) {
return Object.values(node.next);
}
}
}
});
}
graph(scope) {
return this.tokens.graph(scope, (node) => {
const retrieved = graph.retrieve(node);
if (retrieved) {
return retrieved;
} else {
const REFERENCE = require("./REFERENCE");
for (const { left, right } of node) {
const test = graph.retrieve(left);
if (test?.value && test.value instanceof REFERENCE) {
const link = new Identifier(
append(test.value.link.node, right.node)
);
return graph.retrieve(link);
}
}
const temporary = new NODE(node);
// TODO NODE Direct
graph.$[node] = temporary;
return temporary;
}
});
}
}
module.exports = EXPRESSION;