Generate a series of nested switch statements to parse CSSPrimitiveValue units.

third_party/WebKit/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl

Index: third_party/WebKit/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl
diff --git a/third_party/WebKit/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl b/third_party/WebKit/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl
index d2e2acb8c403421e200d6a8c849ebee23bde8fbe..fcfd3475530290f26bb0cf4d03a09bbd66ae5d54 100644
--- a/third_party/WebKit/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl
+++ b/third_party/WebKit/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl
@@ -1,24 +1,9 @@
 {% from 'macros.tmpl' import license %}
-{{license()}}
-{% macro trie_switch(trie, index) %}
-{# FIXME: No need to switch if there's only a single item in the subtrie:
-   can just have an if statement as we're currently doing for leaves. #}
-switch (data[{{index}}]) {
-{% for char, subtrie, tag, conditions in trie %}
-case '{{char}}':
-    {% if subtrie %}{# Recurse on subtrie #}
-    {{trie_switch(subtrie, index + 1) | indent}}
-    {% elif conditions %}{# Check suffix #}
-    if ({{conditions | join(' && ')}})
-        return {{tag}}Tag.localName().impl();
-    return 0;
-    {% else %}{# Terminal node (no suffix) #}
+{% from 'macros.tmpl' import trie_length_switch %}
+{% macro trie_return_statement(tag) %}
     return {{tag}}Tag.localName().impl();
-    {% endif %}
-{% endfor %}
-}
-return 0;
 {% endmacro %}
+{{license()}}
 
 #include "{{namespace}}ElementLookupTrie.h"
 
@@ -30,15 +15,9 @@ using namespace {{namespace}}Names;
 
 StringImpl* lookup{{namespace}}Tag(const UChar* data, unsigned length)
 {
-    ASSERT(data);
-    ASSERT(length);
-    switch (length) {
-    {% for length, trie in length_tries %}
-    case {{length}}:
-        {{trie_switch(trie, 0) | indent(8)}}
-    {% endfor %}
-    }
-    return 0;
+    DCHECK(data);
+    DCHECK(length);
+    {{trie_length_switch(empty_case_return_value, length_tries, trie_return_statement, '0')}}
 }
 
 } // namespace blink