harmonyc/code_generator/outFile.js

Harmony Code - model-driven BDD for Vitest

import { SourceMapGenerator } from 'source-map-js';
export class OutFile {
    constructor(name) {
        this.name = name;
        this.lines = [];
        this.level = 0;
        this.sm = new SourceMapGenerator();
        this.indentSpaces = 2;
    }
    indent(fn) {
        this.level++;
        try {
            fn();
        }
        finally {
            this.level--;
        }
    }
    print(...lines) {
        const l = this.lines.length;
        this.lines.push(...lines.map((line) => ' '.repeat(this.level * this.indentSpaces) + line));
        if (this.currentLoc)
            for (const i of lines.keys()) {
                this.sm.addMapping({
                    source: this.currentLoc.fileName,
                    original: {
                        line: this.currentLoc.line,
                        column: this.currentLoc.column,
                    },
                    generated: {
                        line: l + i,
                        column: this.level * this.indentSpaces,
                    },
                });
            }
        return this;
    }
    loc({ location }) {
        this.currentLoc = location;
        return this;
    }
    get value() {
        let res = this.lines.join('\n');
        if (this.currentLoc) {
            res +=
                `\n\n//# sour` + // not for this file ;)
                    `ceMappingURL=data:application/json,${encodeURIComponent(this.sm.toString())}`;
        }
        return res;
    }
}