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try {
if (typeof define !== 'function' || !define.amd) {
var SourceMap = require('source-map'),
SourceMapConsumer = SourceMap.SourceMapConsumer;
}
} catch (err) {
/* NOP for in browser */
}
describe('source-map', function() {
if (!Handlebars.precompile || !SourceMap) {
return;
}
it('should safely include source map info', function() {
var template = Handlebars.precompile('{{hello}}', {destName: 'dest.js', srcName: 'src.hbs'});
equal(!!template.code, true);
equal(!!template.map, !CompilerContext.browser);
});
it('should map source properly', function() {
var templateSource = ' b{{hello}} \n {{bar}}a {{#block arg hash=(subex 1 subval)}}{{/block}}',
template = Handlebars.precompile(templateSource, {destName: 'dest.js', srcName: 'src.hbs'});
if (template.map) {
var consumer = new SourceMapConsumer(template.map),
lines = template.code.split('\n'),
srcLines = templateSource.split('\n'),
generated = grepLine('" b"', lines),
source = grepLine(' b', srcLines);
var mapped = consumer.originalPositionFor(generated);
equal(mapped.line, source.line);
equal(mapped.column, source.column);
}
});
});
function grepLine(token, lines) {
for (var i = 0; i < lines.length; i++) {
var column = lines[i].indexOf(token);
if (column >= 0) {
return {
line: i + 1,
column: column
};
}
}
}
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