Method shouldEmitTokenSourceMaps

internal/printer/printer.go:819–827

(token ast.Kind, pos int, contextNode *ast.Node, flags tokenEmitFlags)

}

func (p *Printer) shouldEmitTokenSourceMaps(token ast.Kind, pos int, contextNode *ast.Node, flags tokenEmitFlags) bool {
	// We don't emit source positions for most tokens as it tends to be quite noisy, however
	// we need to emit source positions for open and close braces so that tools like istanbul
	// can map branches for code coverage. However, we still omit brace source positions when
	// the output is a declaration file.
	return flags&tefNoSourceMaps == 0 &&
		p.shouldEmitSourceMaps(contextNode) &&
		!p.Options.OmitBraceSourceMapPositions && (token == ast.KindOpenBraceToken || token == ast.KindCloseBraceToken)
}

func (p *Printer) shouldEmitLeadingComments(node *ast.Node) bool {
	return p.emitContext.EmitFlags(node)&EFNoLeadingComments == 0