dockerfile-ast/lib/flag.js

Parse a Dockerfile into an array of instructions and comments.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Flag = void 0;
const vscode_languageserver_types_1 = require("vscode-languageserver-types");
const flagOption_1 = require("./flagOption");
class Flag {
    constructor(document, range, name, nameRange, value, valueRange) {
        this.options = [];
        this.range = range;
        this.name = name;
        this.nameRange = nameRange;
        this.value = value;
        this.valueRange = valueRange;
        if (this.value !== null) {
            let offset = document.offsetAt(valueRange.start);
            let nameStart = -1;
            let valueStart = -1;
            let hasOptions = false;
            for (let i = 0; i < value.length; i++) {
                switch (value.charAt(i)) {
                    case '=':
                        hasOptions = true;
                        if (valueStart === -1) {
                            valueStart = i + 1;
                            break;
                        }
                        break;
                    case ',':
                        this.options.push(this.createFlagOption(document, value, offset, nameStart, valueStart, i));
                        nameStart = -1;
                        valueStart = -1;
                        break;
                    default:
                        if (nameStart === -1) {
                            nameStart = i;
                        }
                        break;
                }
            }
            if (hasOptions && nameStart !== -1) {
                this.options.push(this.createFlagOption(document, value, offset, nameStart, valueStart, value.length));
            }
        }
    }
    createFlagOption(document, content, documentOffset, nameStart, valueStart, valueEnd) {
        const optionRange = vscode_languageserver_types_1.Range.create(document.positionAt(documentOffset + nameStart), document.positionAt(documentOffset + valueEnd));
        if (valueStart === -1) {
            return new flagOption_1.FlagOption(optionRange, content.substring(nameStart, valueEnd), optionRange, null, null);
        }
        return new flagOption_1.FlagOption(optionRange, content.substring(nameStart, valueStart - 1), vscode_languageserver_types_1.Range.create(document.positionAt(documentOffset + nameStart), document.positionAt(documentOffset + valueStart - 1)), content.substring(valueStart, valueEnd), vscode_languageserver_types_1.Range.create(document.positionAt(documentOffset + valueStart), document.positionAt(documentOffset + valueEnd)));
    }
    toString() {
        if (this.valueRange) {
            return "--" + this.name + "=" + this.value;
        }
        return "--" + this.name;
    }
    /**
     * Returns the range that encompasses this entire flag. This includes the
     * -- prefix in the beginning to the last character of the flag's value (if
     * it has been defined).
     *
     * @return the entire range of this flag
     */
    getRange() {
        return this.range;
    }
    /**
     * Returns the name of this flag. The name does not include the -- prefix.
     * Thus, for HEALTHCHECK's --interval flag, interval is the flag's name and
     * not --interval.
     *
     * @return this flag's name
     */
    getName() {
        return this.name;
    }
    /**
     * Returns the range that encompasses the flag's name
     *
     * @return the range containing the flag's name
     */
    getNameRange() {
        return this.nameRange;
    }
    /**
     * Returns the value that has been set to this flag. May be null if the
     * flag is invalid and has no value set like a --start-period. If the flag
     * is instead a --start-period= with an equals sign then the flag's value
     * is the empty string.
     *
     * @return this flag's value if it has been defined, null otherwise
     */
    getValue() {
        return this.value;
    }
    /**
     * Returns the range that encompasses this flag's value. If no value has
     * been set then null will be returned.
     *
     * @return the range containing this flag's value, or null if the flag
     *         has no value defined
     */
    getValueRange() {
        return this.valueRange;
    }
    getOption(name) {
        for (const option of this.options) {
            if (option.getName() === name) {
                return option;
            }
        }
        return null;
    }
    getOptions() {
        return this.options;
    }
    hasOptions() {
        return this.options.length > 0;
    }
}
exports.Flag = Flag;