55 lines
1.0 KiB
Go
55 lines
1.0 KiB
Go
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package main
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import (
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// "fmt"
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//"io/ioutil"
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"github.com/z7zmey/php-parser/node"
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"github.com/z7zmey/php-parser/node/stmt"
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//"github.com/z7zmey/php-parser/walker"
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)
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func walkMutate(n_ *node.Node, cb func(*node.Node)) {
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// Mutate in-place, non recursive...
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cb(n_)
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// Walk on the mutated version
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// We must reimplement .Walk() in order to get pointer behaviour
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switch n := (*n_).(type) {
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case *stmt.StmtList:
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for i, _ := range n.Stmts {
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walkMutate(&n.Stmts[i], cb)
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}
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case *node.Root:
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for i, _ := range n.Stmts {
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walkMutate(&n.Stmts[i], cb)
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}
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case *stmt.If:
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walkMutate(&n.Cond, cb)
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walkMutate(&n.Else, cb)
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for i, _ := range n.ElseIf {
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walkMutate(&n.ElseIf[i], cb)
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}
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walkMutate(&n.Stmt, cb)
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case *stmt.Else:
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walkMutate(&n.Stmt, cb)
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case *stmt.ElseIf:
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walkMutate(&n.Cond, cb)
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walkMutate(&n.Stmt, cb)
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default:
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// FIXME need to implement Walk() for all node types, to ensure that
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// we can perform mutation transforms in nested contexts
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// bail
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//panic(fmt.Sprintf("walkMutate: unimplemented type '%t'", n))
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}
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}
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