Ignore duplicate mappings in SourceMapGenerator.prototype.addMapping #21

fitzgen opened this Issue Sep 5, 2012 · 1 comment


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fitzgen commented Sep 5, 2012

Quoting @mishoo:

Let's take this statement: a = 1, the AST
hierarchy for it is something like:

AST_SimpleStatement {
body: AST_Assign {
left: AST_SymbolRef (a)
operator: "="
right: AST_Number (1)

If I output mapping for all nodes, we'll have a duplicate because the
AST_SimpleStatement's start token is a, which is the same start
token in fact for the AST_Assign and for the AST_SymbolRef. So I'd
output, say, 0,0->0,0 (name: "a") three times.


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fitzgen Apr 4, 2013


Fixed in 7c3d49b


fitzgen commented Apr 4, 2013

Fixed in 7c3d49b

@fitzgen fitzgen closed this Apr 4, 2013

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