siphon-cli/lib/core/transpilers/ezra/generator/expression.js

Simple bundler for web applications. 📦🔧🧡

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var types_1 = require("../../../../types");
var utils_1 = require("../../../../utils");
var base_1 = require("./base");
function requiresBrackets(node, checker) {
    var _a;
    return utils_1.precedence[(_a = node[checker]) === null || _a === void 0 ? void 0 : _a.operator] < utils_1.precedence[node.operator];
}
base_1.ezra.EmptyNode = function () { };
base_1.ezra.Identifier = function (node) {
    this.write(node.name);
};
base_1.ezra.PrivateIdentifier = function (node) {
    this.write("#" + node.name);
};
base_1.ezra.Literal = function (node) {
    this.write(node.raw);
};
base_1.ezra.TemplateLiteral = function (node) {
    this.write("`");
    var ordered = node.expressions
        .concat(node.quasis)
        .sort(function (a, b) { return a.loc.start - b.loc.start; });
    for (var i = 0; ordered[i]; i++) {
        var element = ordered[i];
        if (element instanceof types_1.TemplateElement) {
            this.write(element.value.raw);
        }
        else {
            this.write("${");
            this.render(element);
            this.write("}");
        }
    }
    this.write("`");
};
base_1.ezra.BinaryExpression = function (node) {
    var condition = requiresBrackets(node, "left") ||
        (node.left && /Sequence|Conditional/.test(node.left.type));
    this.writeIf("(", condition);
    this.render(node.left);
    this.writeIf(")", condition);
    if ((0, utils_1.isAlphabetic)(node.operator))
        this.write(" " + node.operator + " ");
    else
        this.space(node.operator);
    condition =
        requiresBrackets(node, "right") ||
            (node.right && /Sequence|Conditional/.test(node.right.type));
    this.writeIf("(", condition);
    this.render(node.right);
    this.writeIf(")", condition);
};
base_1.ezra.AssignmentExpression = function (node) {
    var _a, _b;
    this.render(node.left);
    this.space(node.operator);
    var condition = requiresBrackets(node, "right") || /Sequence/.test((_b = (_a = node.right) === null || _a === void 0 ? void 0 : _a.type) !== null && _b !== void 0 ? _b : "");
    this.writeIf("(", condition);
    this.render(node.right);
    this.writeIf(")", condition);
};
base_1.ezra.CallExpression = function (node) {
    var _a, _b;
    var condition = !((0, types_1.isValidReference)(node.callee) ||
        /CallExpression/.test((_b = (_a = node.callee) === null || _a === void 0 ? void 0 : _a.type) !== null && _b !== void 0 ? _b : ""));
    this.writeIf("(", condition);
    this.render(node.callee);
    this.writeIf(")", condition);
    this.write("(");
    this.sequence(node.arguments);
    this.write(")");
};
base_1.ezra.MemberExpression = function (node) {
    var _a, _b;
    var condition = !((0, types_1.isValidReference)(node.object) || /This|Call/.test((_b = (_a = node.object) === null || _a === void 0 ? void 0 : _a.type) !== null && _b !== void 0 ? _b : ""));
    this.writeIf("(", condition);
    this.render(node.object);
    this.writeIf(")", condition);
    if (node.computed)
        this.write("[");
    else if (node.optional)
        this.write("?.");
    else
        this.write(".");
    this.render(node.property);
    if (node.computed)
        this.write("]");
};
base_1.ezra.NewExpression = function (node) {
    this.write("new ");
    this.render(node.callee);
    this.write("(");
    this.sequence(node.arguments);
    this.write(")");
};
base_1.ezra.ImportExpression = function (node) {
    this.write("import(");
    this.render(node.source);
    this.write(")");
};
base_1.ezra.ThisExpression = function (node) {
    this.write("this");
};
base_1.ezra.ClassExpression = function (node) {
    this.write("class");
    if (node.id !== null) {
        this.write(" " + node.id.name);
    }
    if (node.superClass !== null) {
        this.write(" extends ");
        this.render(node.superClass);
    }
    this.space();
    this.render(node.body);
};
base_1.ezra.UnaryExpression = function (node) {
    var condition = requiresBrackets(node, "argument");
    this.write(node.operator);
    if ((0, utils_1.isAlphabetic)(node.operator))
        this.write(" ");
    this.writeIf("(", condition);
    this.render(node.argument);
    this.writeIf(")", condition);
};
base_1.ezra.ArrayExpression = function (node) {
    this.write("[");
    this.sequence(node.elements);
    this.write("]");
};
base_1.ezra.ObjectExpression = function (node) {
    this.write("{");
    if (node.properties.length)
        this.space();
    this.sequence(node.properties);
    if (node.properties.length)
        this.space();
    this.write("}");
};
base_1.ezra.Property = function (node) {
    if (node.computed)
        this.write("]");
    this.render(node.key);
    if (node.computed)
        this.write("[");
    if (node.method && node.value instanceof types_1.FunctionExpression) {
        this.write("(");
        this.sequence(node.value.params);
        this.write(")");
        this.space();
        this.render(node.value.body);
    }
    else if (node.shorthand)
        return;
    else {
        this.write(":");
        this.space();
        this.render(node.value);
    }
};
base_1.ezra.UpdateExpression = function (node) {
    var condition = requiresBrackets(node, "argument");
    if (node.prefix)
        this.write(node.operator);
    this.writeIf("(", condition);
    this.render(node.argument);
    this.writeIf(")", condition);
    if (!node.prefix)
        this.write(node.operator);
};
base_1.ezra.AwaitExpression = function (node) {
    this.write("await ");
    this.render(node.argument);
};
base_1.ezra.ChainExpression = function (node) {
    this.render(node.expression);
};
base_1.ezra.ConditionalExpression = function (node) {
    this.render(node.test);
    this.space();
    if (this.lineLength >= 28) {
        this.indentLevel++;
        this.newline();
        this.write("?");
        this.space();
        this.render(node.consequent);
        this.newline();
        this.write(":");
        this.space();
        this.render(node.alternate);
        this.indentLevel--;
    }
    else {
        this.write("?");
        this.space();
        this.render(node.consequent);
        this.space();
        this.write(":");
        this.space();
        this.render(node.alternate);
    }
};
base_1.ezra.FunctionExpression = function (node) {
    if (node.async)
        this.write("async ");
    this.write("function");
    if (node.generator)
        this.write("*");
    if (node.id !== null) {
        this.write(" " + node.id.name);
    }
    this.space();
    this.write("(");
    this.sequence(node.params);
    this.write(")");
    this.space();
    this.render(node.body);
};
base_1.ezra.LogicalExpression = function (node) {
    var _a, _b;
    var condition = requiresBrackets(node, "left");
    this.writeIf("(", condition);
    this.render(node.left);
    this.writeIf(")", condition);
    condition =
        requiresBrackets(node, "right") ||
            /Assign|Sequence|Conditional/.test((_b = (_a = node.right) === null || _a === void 0 ? void 0 : _a.type) !== null && _b !== void 0 ? _b : "");
    this.space();
    this.write(node.operator);
    this.space();
    this.writeIf("(", condition);
    this.render(node.right);
    this.writeIf(")", condition);
};
base_1.ezra.SequenceExpression = function (node) {
    this.sequence(node.expressions, node.type);
};
base_1.ezra.ArrowFunctionExpression = function (node) {
    if (node.async)
        this.write("async ");
    this.write("(");
    this.sequence(node.params);
    this.write(")");
    this.space();
    this.write("=>");
    this.space();
    this.render(node.body);
};
base_1.ezra.YieldExpression = function (node) {
    this.write("yield");
    if (node.delegate) {
        this.write("*");
        this.space();
    }
    else
        this.write(" ");
    this.render(node.argument);
};
base_1.ezra.AssignmentPattern = function (node) {
    this.render(node.left);
    this.space("=");
    this.render(node.right);
};
base_1.ezra.ArrayPattern = base_1.ezra.ArrayExpression;
base_1.ezra.ObjectPattern = base_1.ezra.ObjectExpression;
base_1.ezra.RestElement = function (node) {
    var condition = !(0, types_1.isValidReference)(node.argument);
    this.write("...");
    this.writeIf("(", condition);
    this.render(node.argument);
    this.writeIf(")", condition);
};
base_1.ezra.SpreadElement = base_1.ezra.RestElement;