mkjs-cli/test/jmacs/src/language/ast.js

Make-inspired build tool

const assembler = require('./assembler');

module.exports = {

	push(a_list, z_item) {
		if(undefined === z_item && !a_list.length) return a_list;
		a_list.push(z_item);
		return a_list;
	},

	append(a_appendage, a_primary) {
		return a_primary.concat(a_appendage);
	},

	merge(h_a, h_b) {
		for(let s_key in h_a) {
			h_b[s_key] = h_a[s_key];
		}
		return h_b;
	},

	option(h_pass, z_if, s_key) {
		if(z_if) h_pass[s_key] = true;
		return h_pass;
	},

	Inline: (a_codes, b_suppress) => ({
		type: 'inline',
		code: a_codes.join(''),
		suppress: b_suppress,
	}),

	MacroCall: (s_macro, a_args) => ({
		type: 'call',
		macro: s_macro,
		args: a_args,
	}),

	Macro: (s_def, a_body) => ({
		type: 'macro',
		macro: s_def,
		body: a_body,
	}),

	Assignment: (s_name, h_expression) => ({
		type: 'assignment',
		name: s_name,
		expression: h_expression,
	}),

	If: (s_condition, a_then_body, a_elseifs, a_else_body) => ({
		type: 'if',
		if: s_condition,
		then: a_then_body,
		elseifs: a_elseifs,
		else: a_else_body,
	}),

	Elseif: (s_condition, a_then_body) => ({
		type: 'elseif',
		if: s_condition,
		then: a_then_body,
	}),

	Include: (h_file) => ({
		type: 'include',
		file: h_file,
	}),

	Verbatim: (s_verbatim) => ({
		type: 'verbatim',
		value: s_verbatim,
	}),

	Program: (a_sections) => assembler(a_sections),
};