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tpl: Support text/template/parse API change in go1.11

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Thanks to @rjoleary for the investigation.

Fixes #4784
This commit is contained in:
Anthony Fok
2018-06-13 07:33:59 -06:00
committed by Bjørn Erik Pedersen
parent 187621ae24
commit 9f27091e10
3 changed files with 136 additions and 48 deletions
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48
tpl/tplimpl/template_ast_transformers.go
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@@ -91,54 +91,6 @@ func applyTemplateTransformers(templ *parse.Tree, lookupFn func(name string) *pa
return nil
}
// paramsKeysToLower is made purposely non-generic to make it not so tempting
// to do more of these hard-to-maintain AST transformations.
func (c *templateContext) paramsKeysToLower(n parse.Node) {
switch x := n.(type) {
case *parse.ListNode:
if x != nil {
c.paramsKeysToLowerForNodes(x.Nodes...)
}
case *parse.ActionNode:
c.paramsKeysToLowerForNodes(x.Pipe)
case *parse.IfNode:
c.paramsKeysToLowerForNodes(x.Pipe, x.List, x.ElseList)
case *parse.WithNode:
c.paramsKeysToLowerForNodes(x.Pipe, x.List, x.ElseList)
case *parse.RangeNode:
c.paramsKeysToLowerForNodes(x.Pipe, x.List, x.ElseList)
case *parse.TemplateNode:
subTempl := c.getIfNotVisited(x.Name)
if subTempl != nil {
c.paramsKeysToLowerForNodes(subTempl.Root)
}
case *parse.PipeNode:
for i, elem := range x.Decl {
if len(x.Cmds) > i {
// maps $site => .Site etc.
c.decl[elem.Ident[0]] = x.Cmds[i].String()
}
}
for _, cmd := range x.Cmds {
c.paramsKeysToLower(cmd)
}
case *parse.CommandNode:
for _, elem := range x.Args {
switch an := elem.(type) {
case *parse.FieldNode:
c.updateIdentsIfNeeded(an.Ident)
case *parse.VariableNode:
c.updateIdentsIfNeeded(an.Ident)
case *parse.PipeNode:
c.paramsKeysToLower(an)
}
}
}
}
func (c *templateContext) paramsKeysToLowerForNodes(nodes ...parse.Node) {
for _, node := range nodes {
c.paramsKeysToLower(node)