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#! /usr/bin/env node
/* eslint-disable no-console, no-var */
// Util script for debugging source code generation issues
var script = process.argv[2].replace(/\\n/g, '\n'),
verbose = process.argv[3] === '-v';
var Handlebars = require('./lib'),
SourceMap = require('source-map'),
SourceMapConsumer = SourceMap.SourceMapConsumer;
var template = Handlebars.precompile(script, {
srcName: 'input.hbs',
destName: 'output.js',
assumeObjects: true,
compat: false,
strict: true,
trackIds: true,
knownHelpersOnly: false
});
if (!verbose) {
console.log(template);
} else {
var consumer = new SourceMapConsumer(template.map),
lines = template.code.split('\n'),
srcLines = script.split('\n');
console.log();
console.log('Source:');
srcLines.forEach(function(source, index) {
console.log(index + 1, source);
});
console.log();
console.log('Generated:');
console.log(template.code);
lines.forEach(function(source, index) {
console.log(index + 1, source);
});
console.log();
console.log('Map:');
console.log(template.map);
console.log();
function collectSource(lines, lineName, colName, order) {
var ret = {},
ordered = [],
last;
function collect(current) {
if (last) {
var mapLines = lines.slice(last[lineName] - 1, current && current[lineName]);
if (mapLines.length) {
if (current) {
mapLines[mapLines.length - 1] = mapLines[mapLines.length - 1].slice(0, current[colName]);
}
mapLines[0] = mapLines[0].slice(last[colName]);
}
ret[last[lineName] + ':' + last[colName]] = mapLines.join('\n');
ordered.push({
startLine: last[lineName],
startCol: last[colName],
endLine: current && current[lineName]
});
}
last = current;
}
consumer.eachMapping(collect, undefined, order);
collect();
return ret;
}
srcLines = collectSource(srcLines, 'originalLine', 'originalColumn', SourceMapConsumer.ORIGINAL_ORDER);
lines = collectSource(lines, 'generatedLine', 'generatedColumn');
consumer.eachMapping(function(mapping) {
var originalSrc = srcLines[mapping.originalLine + ':' + mapping.originalColumn],
generatedSrc = lines[mapping.generatedLine + ':' + mapping.generatedColumn];
if (!mapping.originalLine) {
console.log('generated', mapping.generatedLine + ':' + mapping.generatedColumn, generatedSrc);
} else {
console.log('map',
mapping.source,
mapping.originalLine + ':' + mapping.originalColumn,
originalSrc,
'->',
mapping.generatedLine + ':' + mapping.generatedColumn,
generatedSrc);
}
});
}
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