diff --git a/docs/reference/mapping/types/boolean.asciidoc b/docs/reference/mapping/types/boolean.asciidoc
index 2a614aa66665c..8d211a983ba39 100644
--- a/docs/reference/mapping/types/boolean.asciidoc
+++ b/docs/reference/mapping/types/boolean.asciidoc
@@ -188,7 +188,27 @@ The following parameters are accepted by `boolean` fields:
 
     Accepts any of the true or false values listed above. The value is
     substituted for any explicit `null` values. Defaults to `null`, which
-    means the field is treated as missing.
+    means the field is treated as missing. Note that this cannot be set
+    if the `script` parameter is used.
+
+`on_script_error`::
+
+    Defines what to do if the script defined by the `script` parameter
+    throws an error at indexing time. Accepts `reject` (default), which
+    will cause the entire document to be rejected, and `ignore`, which
+    will register the field in the document's
+    <<mapping-ignored-field,`_ignored`>> metadata field and continue
+    indexing. This parameter can only be set if the `script` field is
+    also set.
+
+`script`::
+
+    If this parameter is set, then the field will index values generated
+    by this script, rather than reading the values directly from the
+    source. If a value is set for this field on the input document, then
+    the document will be rejected with an error.
+    Scripts are in the same format as their
+    <<runtime-mapping-fields,runtime equivalent>>.
 
 <<mapping-store,`store`>>::
 
diff --git a/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/SearchAsYouTypeFieldMapper.java b/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/SearchAsYouTypeFieldMapper.java
index ef1d7b4e52a4e..e26073fd81b16 100644
--- a/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/SearchAsYouTypeFieldMapper.java
+++ b/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/SearchAsYouTypeFieldMapper.java
@@ -545,7 +545,7 @@ public SearchAsYouTypeFieldMapper(String simpleName,
                                       PrefixFieldMapper prefixField,
                                       ShingleFieldMapper[] shingleFields,
                                       Builder builder) {
-        super(simpleName, mappedFieldType, indexAnalyzers, MultiFields.empty(), copyTo);
+        super(simpleName, mappedFieldType, indexAnalyzers, MultiFields.empty(), copyTo, false, null);
         this.prefixField = prefixField;
         this.shingleFields = shingleFields;
         this.maxShingleSize = builder.maxShingleSize.getValue();
diff --git a/modules/runtime-fields-common/src/yamlRestTest/resources/rest-api-spec/test/runtime_fields/63_boolean_calculated_at_index.yml b/modules/runtime-fields-common/src/yamlRestTest/resources/rest-api-spec/test/runtime_fields/63_boolean_calculated_at_index.yml
new file mode 100644
index 0000000000000..922f602f343e3
--- /dev/null
+++ b/modules/runtime-fields-common/src/yamlRestTest/resources/rest-api-spec/test/runtime_fields/63_boolean_calculated_at_index.yml
@@ -0,0 +1,134 @@
+---
+setup:
+  - do:
+      indices.create:
+        index: sensor
+        body:
+          settings:
+            number_of_shards: 1
+            number_of_replicas: 0
+          mappings:
+            properties:
+              timestamp:
+                type: date
+              temperature:
+                type: long
+              voltage:
+                type: double
+              node:
+                type: keyword
+              over_v:
+                type: boolean
+                script:
+                  source: |
+                    for (def v : doc['voltage']) {
+                      emit(v >= params.min_v);
+                    }
+                  params:
+                    min_v: 5.0
+              # Test fetching from _source
+              over_v_from_source:
+                type: boolean
+                script:
+                  source: |
+                    emit(params._source.voltage >= 5.0);
+              # Test many booleans
+              big_vals:
+                type: boolean
+                script:
+                  source: |
+                    for (def v : doc['temperature']) {
+                      emit(v >= 200);
+                    }
+                    for (def v : doc['voltage']) {
+                      emit(v >= 5.0);
+                    }
+
+
+  - do:
+      bulk:
+        index: sensor
+        refresh: true
+        body: |
+          {"index":{}}
+          {"timestamp": 1516729294000, "temperature": 200, "voltage": 5.2, "node": "a"}
+          {"index":{}}
+          {"timestamp": 1516642894000, "temperature": 201, "voltage": 5.8, "node": "b"}
+          {"index":{}}
+          {"timestamp": 1516556494000, "temperature": 202, "voltage": 5.1, "node": "a"}
+          {"index":{}}
+          {"timestamp": 1516470094000, "temperature": 198, "voltage": 5.6, "node": "b"}
+          {"index":{}}
+          {"timestamp": 1516383694000, "temperature": 200, "voltage": 4.2, "node": "c"}
+          {"index":{}}
+          {"timestamp": 1516297294000, "temperature": 202, "voltage": 4.0, "node": "c"}
+
+---
+"get mapping":
+  - do:
+      indices.get_mapping:
+        index: sensor
+  - match: {sensor.mappings.properties.over_v.type: boolean }
+  - match:
+      sensor.mappings.properties.over_v.script.source: |
+        for (def v : doc['voltage']) {
+          emit(v >= params.min_v);
+        }
+  - match: {sensor.mappings.properties.over_v.script.params: {min_v: 5.0} }
+  - match: {sensor.mappings.properties.over_v.script.lang: painless }
+
+---
+"fetch fields":
+  - do:
+      search:
+        index: sensor
+        body:
+          sort: timestamp
+          fields: [over_v, over_v_from_source, big_vals]
+  - match: {hits.total.value: 6}
+  - match: {hits.hits.0.fields.over_v: [false] }
+  - match: {hits.hits.0.fields.over_v_from_source: [false] }
+  - match: {hits.hits.0.fields.big_vals: [false, true] } # doc values are sorted with falses before trues
+
+---
+"docvalue_fields":
+  - do:
+      search:
+        index: sensor
+        body:
+          sort: timestamp
+          docvalue_fields: [over_v, over_v_from_source, big_vals]
+  - match: {hits.total.value: 6}
+  - match: {hits.hits.0.fields.over_v: [false] }
+  - match: {hits.hits.0.fields.over_v_from_source: [false] }
+  - match: {hits.hits.0.fields.big_vals: [false, true] } # doc values are sorted with falses before trues
+
+---
+"terms agg":
+  - do:
+      search:
+        index: sensor
+        body:
+          aggs:
+            over_v:
+              terms:
+                field: over_v
+  - match: {hits.total.value: 6}
+  - match: {aggregations.over_v.buckets.0.key_as_string: "true"}
+  - match: {aggregations.over_v.buckets.0.doc_count: 4}
+  - match: {aggregations.over_v.buckets.1.key_as_string: "false"}
+  - match: {aggregations.over_v.buckets.1.doc_count: 2}
+
+---
+"term query":
+  - do:
+      search:
+        index: sensor
+        body:
+          query:
+            term:
+              over_v: true
+          sort:
+            timestamp: asc
+  - match: {hits.total.value: 4}
+  - match: {hits.hits.0._source.voltage: 5.6}
diff --git a/server/src/main/java/org/elasticsearch/index/mapper/AbstractGeometryFieldMapper.java b/server/src/main/java/org/elasticsearch/index/mapper/AbstractGeometryFieldMapper.java
index e324ed89a4644..1f2015eec88b3 100644
--- a/server/src/main/java/org/elasticsearch/index/mapper/AbstractGeometryFieldMapper.java
+++ b/server/src/main/java/org/elasticsearch/index/mapper/AbstractGeometryFieldMapper.java
@@ -142,7 +142,7 @@ protected AbstractGeometryFieldMapper(String simpleName, MappedFieldType mappedF
                                           Explicit<Boolean> ignoreMalformed, Explicit<Boolean> ignoreZValue,
                                           MultiFields multiFields, CopyTo copyTo,
                                           Indexer<Parsed, Processed> indexer, Parser<Parsed> parser) {
-        super(simpleName, mappedFieldType, indexAnalyzers, multiFields, copyTo);
+        super(simpleName, mappedFieldType, indexAnalyzers, multiFields, copyTo, false, null);
         this.ignoreMalformed = ignoreMalformed;
         this.ignoreZValue = ignoreZValue;
         this.indexer = indexer;
diff --git a/server/src/main/java/org/elasticsearch/index/mapper/BooleanFieldMapper.java b/server/src/main/java/org/elasticsearch/index/mapper/BooleanFieldMapper.java
index 271c48dc9f53c..e7a195628cbda 100644
--- a/server/src/main/java/org/elasticsearch/index/mapper/BooleanFieldMapper.java
+++ b/server/src/main/java/org/elasticsearch/index/mapper/BooleanFieldMapper.java
@@ -13,6 +13,7 @@
 import org.apache.lucene.document.SortedNumericDocValuesField;
 import org.apache.lucene.document.StoredField;
 import org.apache.lucene.index.IndexOptions;
+import org.apache.lucene.index.LeafReaderContext;
 import org.apache.lucene.search.Query;
 import org.apache.lucene.search.TermRangeQuery;
 import org.apache.lucene.util.BytesRef;
@@ -25,7 +26,11 @@
 import org.elasticsearch.index.fielddata.IndexNumericFieldData.NumericType;
 import org.elasticsearch.index.fielddata.plain.SortedNumericIndexFieldData;
 import org.elasticsearch.index.query.SearchExecutionContext;
+import org.elasticsearch.script.BooleanFieldScript;
+import org.elasticsearch.script.Script;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.search.DocValueFormat;
+import org.elasticsearch.search.lookup.FieldValues;
 import org.elasticsearch.search.lookup.SearchLookup;
 
 import java.io.IOException;
@@ -34,6 +39,7 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.function.Supplier;
 
 /**
@@ -74,44 +80,69 @@ public static class Builder extends FieldMapper.Builder {
             .acceptsNull();
 
         private final Parameter<Float> boost = Parameter.boostParam();
+        private final Parameter<Script> script = Parameter.scriptParam(m -> toType(m).script);
+        private final Parameter<String> onScriptError = Parameter.onScriptErrorParam(m -> toType(m).onScriptError, script);
+
         private final Parameter<Map<String, String>> meta = Parameter.metaParam();
 
-        public Builder(String name) {
+        private final ScriptCompiler scriptCompiler;
+
+        public Builder(String name, ScriptCompiler scriptCompiler) {
             super(name);
+            this.scriptCompiler = Objects.requireNonNull(scriptCompiler);
+            this.script.precludesParameters(nullValue);
+            this.script.setValidator(s -> {
+                if (s != null && indexed.get() == false && docValues.get() == false) {
+                    throw new MapperParsingException("Cannot define script on field with index:false and doc_values:false");
+                }
+            });
         }
 
         @Override
         protected List<Parameter<?>> getParameters() {
-            return Arrays.asList(meta, boost, docValues, indexed, nullValue, stored);
+            return Arrays.asList(meta, boost, docValues, indexed, nullValue, stored, script, onScriptError);
         }
 
         @Override
         public BooleanFieldMapper build(ContentPath contentPath) {
             MappedFieldType ft = new BooleanFieldType(buildFullName(contentPath), indexed.getValue(), stored.getValue(),
-                docValues.getValue(), nullValue.getValue(), meta.getValue());
+                docValues.getValue(), nullValue.getValue(), scriptValues(), meta.getValue());
             ft.setBoost(boost.getValue());
             return new BooleanFieldMapper(name, ft, multiFieldsBuilder.build(this, contentPath), copyTo.build(), this);
         }
+
+        private FieldValues<Boolean> scriptValues() {
+            if (script.get() == null) {
+                return null;
+            }
+            BooleanFieldScript.Factory scriptFactory = scriptCompiler.compile(script.get(), BooleanFieldScript.CONTEXT);
+            return scriptFactory == null ? null : (lookup, ctx, doc, consumer) -> scriptFactory
+                .newFactory(name, script.get().getParams(), lookup)
+                .newInstance(ctx)
+                .runForDoc(doc, consumer);
+        }
     }
 
-    public static final TypeParser PARSER = new TypeParser((n, c) -> new Builder(n));
+    public static final TypeParser PARSER = new TypeParser((n, c) -> new Builder(n, c.scriptCompiler()));
 
     public static final class BooleanFieldType extends TermBasedFieldType {
 
         private final Boolean nullValue;
+        private final FieldValues<Boolean> scriptValues;
 
         public BooleanFieldType(String name, boolean isSearchable, boolean isStored, boolean hasDocValues,
-                                Boolean nullValue, Map<String, String> meta) {
+                                Boolean nullValue, FieldValues<Boolean> scriptValues, Map<String, String> meta) {
             super(name, isSearchable, isStored, hasDocValues, TextSearchInfo.SIMPLE_MATCH_ONLY, meta);
             this.nullValue = nullValue;
+            this.scriptValues = scriptValues;
         }
 
         public BooleanFieldType(String name) {
-            this(name, true, false, true, false, Collections.emptyMap());
+            this(name, true, false, true, false, null, Collections.emptyMap());
         }
 
         public BooleanFieldType(String name, boolean searchable) {
-            this(name, searchable, false, true, false, Collections.emptyMap());
+            this(name, searchable, false, true, false, null, Collections.emptyMap());
         }
 
         @Override
@@ -124,7 +155,9 @@ public ValueFetcher valueFetcher(SearchExecutionContext context, String format)
             if (format != null) {
                 throw new IllegalArgumentException("Field [" + name() + "] of type [" + typeName() + "] doesn't support formats.");
             }
-
+            if (this.scriptValues != null) {
+                return FieldValues.valueFetcher(this.scriptValues, context);
+            }
             return new SourceValueFetcher(name(), context, nullValue) {
                 @Override
                 protected Boolean parseSourceValue(Object value) {
@@ -211,14 +244,21 @@ public Query rangeQuery(Object lowerTerm, Object upperTerm, boolean includeLower
     private final boolean indexed;
     private final boolean hasDocValues;
     private final boolean stored;
+    private final Script script;
+    private final FieldValues<Boolean> scriptValues;
+    private final ScriptCompiler scriptCompiler;
 
     protected BooleanFieldMapper(String simpleName, MappedFieldType mappedFieldType,
                                  MultiFields multiFields, CopyTo copyTo, Builder builder) {
-        super(simpleName, mappedFieldType, Lucene.KEYWORD_ANALYZER, multiFields, copyTo);
+        super(simpleName, mappedFieldType, Lucene.KEYWORD_ANALYZER, multiFields, copyTo,
+            builder.script.get() != null, builder.onScriptError.getValue());
         this.nullValue = builder.nullValue.getValue();
         this.stored = builder.stored.getValue();
         this.indexed = builder.indexed.getValue();
         this.hasDocValues = builder.docValues.getValue();
+        this.script = builder.script.get();
+        this.scriptValues = builder.scriptValues();
+        this.scriptCompiler = builder.scriptCompiler;
     }
 
     @Override
@@ -243,7 +283,10 @@ protected void parseCreateField(ParseContext context) throws IOException {
                 value = context.parser().booleanValue();
             }
         }
+        indexValue(context, value);
+    }
 
+    private void indexValue(ParseContext context, Boolean value) {
         if (value == null) {
             return;
         }
@@ -260,14 +303,18 @@ protected void parseCreateField(ParseContext context) throws IOException {
         }
     }
 
+    @Override
+    protected void indexScriptValues(SearchLookup searchLookup, LeafReaderContext readerContext, int doc, ParseContext parseContext) {
+        this.scriptValues.valuesForDoc(searchLookup, readerContext, doc, value -> indexValue(parseContext, value));
+    }
+
     @Override
     public FieldMapper.Builder getMergeBuilder() {
-        return new Builder(simpleName()).init(this);
+        return new Builder(simpleName(), scriptCompiler).init(this);
     }
 
     @Override
     protected String contentType() {
         return CONTENT_TYPE;
     }
-
 }
diff --git a/server/src/main/java/org/elasticsearch/index/mapper/DynamicFieldsBuilder.java b/server/src/main/java/org/elasticsearch/index/mapper/DynamicFieldsBuilder.java
index 328c9a12495f8..131f78c30d025 100644
--- a/server/src/main/java/org/elasticsearch/index/mapper/DynamicFieldsBuilder.java
+++ b/server/src/main/java/org/elasticsearch/index/mapper/DynamicFieldsBuilder.java
@@ -15,6 +15,7 @@
 import org.elasticsearch.common.time.DateFormatter;
 import org.elasticsearch.common.xcontent.XContentParser;
 import org.elasticsearch.index.mapper.ObjectMapper.Dynamic;
+import org.elasticsearch.script.ScriptCompiler;
 
 import java.io.IOException;
 import java.time.format.DateTimeParseException;
@@ -274,7 +275,7 @@ public void newDynamicLongField(ParseContext context, String name) throws IOExce
                 new NumberFieldMapper.Builder(
                     name,
                     NumberFieldMapper.NumberType.LONG,
-                    null,
+                    ScriptCompiler.NONE,
                     context.indexSettings().getSettings()
                 ), context);
         }
@@ -287,13 +288,13 @@ public void newDynamicDoubleField(ParseContext context, String name) throws IOEx
             createDynamicField(new NumberFieldMapper.Builder(
                 name,
                 NumberFieldMapper.NumberType.FLOAT,
-                null,
+                ScriptCompiler.NONE,
                 context.indexSettings().getSettings()), context);
         }
 
         @Override
         public void newDynamicBooleanField(ParseContext context, String name) throws IOException {
-            createDynamicField(new BooleanFieldMapper.Builder(name), context);
+            createDynamicField(new BooleanFieldMapper.Builder(name, ScriptCompiler.NONE), context);
         }
 
         @Override
diff --git a/server/src/main/java/org/elasticsearch/index/mapper/FieldMapper.java b/server/src/main/java/org/elasticsearch/index/mapper/FieldMapper.java
index 52b4be0cc9a6d..0eb09d97f1de7 100644
--- a/server/src/main/java/org/elasticsearch/index/mapper/FieldMapper.java
+++ b/server/src/main/java/org/elasticsearch/index/mapper/FieldMapper.java
@@ -60,6 +60,8 @@ public abstract class FieldMapper extends Mapper implements Cloneable {
     protected final Map<String, NamedAnalyzer> indexAnalyzers;
     protected final MultiFields multiFields;
     protected final CopyTo copyTo;
+    protected final boolean hasScript;
+    protected final String onScriptError;
 
     /**
      * Create a FieldMapper with no index analyzers
@@ -70,9 +72,25 @@ public abstract class FieldMapper extends Mapper implements Cloneable {
      */
     protected FieldMapper(String simpleName, MappedFieldType mappedFieldType,
                           MultiFields multiFields, CopyTo copyTo) {
-        this(simpleName, mappedFieldType, Collections.emptyMap(), multiFields, copyTo);
+        this(simpleName, mappedFieldType, Collections.emptyMap(), multiFields, copyTo, false, null);
     }
 
+    /**
+     * Create a FieldMapper with no index analyzers
+     * @param simpleName        the leaf name of the mapper
+     * @param mappedFieldType   the MappedFieldType associated with this mapper
+     * @param multiFields       sub fields of this mapper
+     * @param copyTo            copyTo fields of this mapper
+     * @param hasScript         whether a script is defined for the field
+     * @param onScriptError     the behaviour for when the defined script fails at runtime
+     */
+    protected FieldMapper(String simpleName, MappedFieldType mappedFieldType,
+                          MultiFields multiFields, CopyTo copyTo,
+                          boolean hasScript, String onScriptError) {
+        this(simpleName, mappedFieldType, Collections.emptyMap(), multiFields, copyTo, hasScript, onScriptError);
+    }
+
+
     /**
      * Create a FieldMapper with a single associated index analyzer
      * @param simpleName        the leaf name of the mapper
@@ -84,7 +102,26 @@ protected FieldMapper(String simpleName, MappedFieldType mappedFieldType,
     protected FieldMapper(String simpleName, MappedFieldType mappedFieldType,
                           NamedAnalyzer indexAnalyzer,
                           MultiFields multiFields, CopyTo copyTo) {
-        this(simpleName, mappedFieldType, Collections.singletonMap(mappedFieldType.name(), indexAnalyzer), multiFields, copyTo);
+        this(simpleName, mappedFieldType, Collections.singletonMap(mappedFieldType.name(), indexAnalyzer), multiFields, copyTo,
+             false, null);
+    }
+
+    /**
+     * Create a FieldMapper with a single associated index analyzer
+     * @param simpleName        the leaf name of the mapper
+     * @param mappedFieldType   the MappedFieldType associated with this mapper
+     * @param indexAnalyzer     the index-time analyzer to use for this field
+     * @param multiFields       sub fields of this mapper
+     * @param copyTo            copyTo fields of this mapper
+     * @param hasScript         whether a script is defined for the field
+     * @param onScriptError     the behaviour for when the defined script fails at runtime
+     */
+    protected FieldMapper(String simpleName, MappedFieldType mappedFieldType,
+                          NamedAnalyzer indexAnalyzer,
+                          MultiFields multiFields, CopyTo copyTo,
+                          boolean hasScript, String onScriptError) {
+        this(simpleName, mappedFieldType, Collections.singletonMap(mappedFieldType.name(), indexAnalyzer), multiFields, copyTo,
+            hasScript, onScriptError);
     }
 
     /**
@@ -95,10 +132,13 @@ protected FieldMapper(String simpleName, MappedFieldType mappedFieldType,
      *                          the mapper will add
      * @param multiFields       sub fields of this mapper
      * @param copyTo            copyTo fields of this mapper
+     * @param hasScript         whether a script is defined for the field
+     * @param onScriptError     the behaviour for when the defined script fails at runtime
      */
     protected FieldMapper(String simpleName, MappedFieldType mappedFieldType,
                           Map<String, NamedAnalyzer> indexAnalyzers,
-                          MultiFields multiFields, CopyTo copyTo) {
+                          MultiFields multiFields, CopyTo copyTo,
+                          boolean hasScript, String onScriptError) {
         super(simpleName);
         if (mappedFieldType.name().isEmpty()) {
             throw new IllegalArgumentException("name cannot be empty string");
@@ -107,6 +147,8 @@ protected FieldMapper(String simpleName, MappedFieldType mappedFieldType,
         this.indexAnalyzers = indexAnalyzers;
         this.multiFields = multiFields;
         this.copyTo = Objects.requireNonNull(copyTo);
+        this.hasScript = hasScript;
+        this.onScriptError = onScriptError;
     }
 
     @Override
@@ -149,6 +191,9 @@ public boolean parsesArrayValue() {
      */
     public void parse(ParseContext context) throws IOException {
         try {
+            if (hasScript) {
+                throw new IllegalArgumentException("Cannot index data directly into a field with a [script] parameter");
+            }
             parseCreateField(context);
         } catch (Exception e) {
             String valuePreview = "";
@@ -173,11 +218,19 @@ public void parse(ParseContext context) throws IOException {
         multiFields.parse(this, context);
     }
 
+    /**
+     * Parse the field value and populate the fields on {@link ParseContext#doc()}.
+     *
+     * Implementations of this method should ensure that on failing to parse parser.currentToken() must be the
+     * current failing token
+     */
+    protected abstract void parseCreateField(ParseContext context) throws IOException;
+
     /**
      * @return whether this field mapper uses a script to generate its values
      */
-    public boolean hasScript() {
-        return false;
+    public final boolean hasScript() {
+        return hasScript;
     }
 
     /**
@@ -185,20 +238,34 @@ public boolean hasScript() {
      *
      * This method should only be called if {@link #hasScript()} has returned {@code true}
      * @param searchLookup  a SearchLookup to be passed the script
-     * @param ctx           a LeafReaderContext exposing values from an incoming document
-     * @param pc            the ParseContext over the incoming document
+     * @param readerContext a LeafReaderContext exposing values from an incoming document
+     * @param doc           the id of the document to execute the script against
+     * @param parseContext  the ParseContext over the incoming document
      */
-    public void executeScript(SearchLookup searchLookup, LeafReaderContext ctx, int doc, ParseContext pc) {
-        throw new UnsupportedOperationException("FieldMapper " + name() + " does not have an index-time script");
+    public final void executeScript(SearchLookup searchLookup, LeafReaderContext readerContext, int doc, ParseContext parseContext) {
+        try {
+            indexScriptValues(searchLookup, readerContext, doc, parseContext);
+        } catch (Exception e) {
+            if ("ignore".equals(onScriptError)) {
+                parseContext.addIgnoredField(name());
+            } else {
+                throw new MapperParsingException("Error executing script on field [" + name() + "]", e);
+            }
+        }
     }
 
     /**
-     * Parse the field value and populate the fields on {@link ParseContext#doc()}.
+     * Run the script associated with the field and index the values that it emits
      *
-     * Implementations of this method should ensure that on failing to parse parser.currentToken() must be the
-     * current failing token
+     * This method should only be called if {@link #hasScript()} has returned {@code true}
+     * @param searchLookup  a SearchLookup to be passed the script
+     * @param readerContext a LeafReaderContext exposing values from an incoming document
+     * @param doc           the id of the document to execute the script against
+     * @param parseContext  the ParseContext over the incoming document
      */
-    protected abstract void parseCreateField(ParseContext context) throws IOException;
+    protected void indexScriptValues(SearchLookup searchLookup, LeafReaderContext readerContext, int doc, ParseContext parseContext) {
+        throw new UnsupportedOperationException("FieldMapper " + name() + " does not support [script]");
+    }
 
     protected final void createFieldNamesField(ParseContext context) {
         assert fieldType().hasDocValues() == false : "_field_names should only be used when doc_values are turned off";
@@ -533,8 +600,8 @@ public static final class Parameter<T> implements Supplier<T> {
         private MergeValidator<T> mergeValidator;
         private T value;
         private boolean isSet;
-        private List<Parameter<?>> requires = new ArrayList<>();
-        private List<Parameter<?>> precludes = new ArrayList<>();
+        private final List<Parameter<?>> requires = new ArrayList<>();
+        private final List<Parameter<?>> precludes = new ArrayList<>();
 
         /**
          * Creates a new Parameter
@@ -880,7 +947,7 @@ public static Parameter<Boolean> docValuesParam(Function<FieldMapper, Boolean> i
          * @param initializer   retrieves the equivalent parameter from an existing FieldMapper for use in merges
          * @return a script parameter
          */
-        public static FieldMapper.Parameter<Script> scriptParam(
+        public static Parameter<Script> scriptParam(
             Function<FieldMapper, Script> initializer
         ) {
             return new FieldMapper.Parameter<>(
@@ -901,6 +968,20 @@ public static FieldMapper.Parameter<Script> scriptParam(
             ).acceptsNull();
         }
 
+        /**
+         * Defines an on_script_error parameter
+         * @param initializer   retrieves the equivalent parameter from an existing FieldMapper for use in merges
+         * @param dependentScriptParam the corresponding required script parameter
+         * @return a new on_error_script parameter
+         */
+        public static Parameter<String> onScriptErrorParam(Function<FieldMapper, String> initializer,
+                                                           Parameter<Script> dependentScriptParam) {
+            return Parameter.restrictedStringParam(
+                "on_script_error",
+                true,
+                initializer,
+                "reject", "ignore").requiresParameters(dependentScriptParam);
+        }
     }
 
     public static final class Conflicts {
diff --git a/server/src/main/java/org/elasticsearch/index/mapper/NumberFieldMapper.java b/server/src/main/java/org/elasticsearch/index/mapper/NumberFieldMapper.java
index d8ae48efd917f..ae64a2f3923bf 100644
--- a/server/src/main/java/org/elasticsearch/index/mapper/NumberFieldMapper.java
+++ b/server/src/main/java/org/elasticsearch/index/mapper/NumberFieldMapper.java
@@ -45,7 +45,6 @@
 import org.elasticsearch.search.DocValueFormat;
 import org.elasticsearch.search.lookup.FieldValues;
 import org.elasticsearch.search.lookup.SearchLookup;
-import org.elasticsearch.search.lookup.SourceLookup;
 
 import java.io.IOException;
 import java.time.ZoneId;
@@ -82,24 +81,19 @@ public static class Builder extends FieldMapper.Builder {
         private final Parameter<Number> nullValue;
 
         private final Parameter<Script> script = Parameter.scriptParam(m -> toType(m).builder.script.get());
-        private final Parameter<String> onScriptError = Parameter.restrictedStringParam(
-            "on_script_error",
-            true,
-            m -> toType(m).onScriptError,
-            "reject", "ignore"
-        );
+        private final Parameter<String> onScriptError = Parameter.onScriptErrorParam(m -> toType(m).onScriptError, script);
 
         private final Parameter<Map<String, String>> meta = Parameter.metaParam();
 
+        private final ScriptCompiler scriptCompiler;
         private final NumberType type;
-        private final ScriptCompiler compiler;
 
         public Builder(String name, NumberType type, ScriptCompiler compiler, Settings settings) {
             this(name, type, compiler, IGNORE_MALFORMED_SETTING.get(settings), COERCE_SETTING.get(settings));
         }
 
         public static Builder docValuesOnly(String name, NumberType type) {
-            Builder builder = new Builder(name, type, null, false, false);
+            Builder builder = new Builder(name, type, ScriptCompiler.NONE, false, false);
             builder.indexed.setValue(false);
             return builder;
         }
@@ -107,7 +101,7 @@ public static Builder docValuesOnly(String name, NumberType type) {
         public Builder(String name, NumberType type, ScriptCompiler compiler, boolean ignoreMalformedByDefault, boolean coerceByDefault) {
             super(name);
             this.type = type;
-            this.compiler = compiler;
+            this.scriptCompiler = Objects.requireNonNull(compiler);
 
             this.ignoreMalformed
                 = Parameter.explicitBoolParam("ignore_malformed", true, m -> toType(m).ignoreMalformed, ignoreMalformedByDefault);
@@ -116,7 +110,6 @@ public Builder(String name, NumberType type, ScriptCompiler compiler, boolean ig
             this.nullValue = new Parameter<>("null_value", false, () -> null,
                 (n, c, o) -> o == null ? null : type.parse(o, false), m -> toType(m).nullValue).acceptsNull();
 
-            this.onScriptError.requiresParameters(this.script);
             this.script.precludesParameters(ignoreMalformed, coerce, nullValue);
             this.script.setValidator(s -> {
                 if (s != null && indexed.get() == false && hasDocValues.get() == false) {
@@ -139,8 +132,7 @@ private FieldValues<Number> scriptValues() {
             if (this.script.get() == null) {
                 return null;
             }
-            assert compiler != null;
-            return type.compile(name, script.get(), compiler);
+            return type.compile(name, script.get(), scriptCompiler);
         }
 
         @Override
@@ -1045,28 +1037,8 @@ public ValueFetcher valueFetcher(SearchExecutionContext context, String format)
                 throw new IllegalArgumentException("Field [" + name() + "] of type [" + typeName() + "] doesn't support formats.");
             }
             if (this.scriptValues != null) {
-                return new ValueFetcher() {
-                    LeafReaderContext ctx;
-
-                    @Override
-                    public void setNextReader(LeafReaderContext context) {
-                        this.ctx = context;
-                    }
-
-                    @Override
-                    public List<Object> fetchValues(SourceLookup lookup) {
-                        List<Object> values = new ArrayList<>();
-                        try {
-                            scriptValues.valuesForDoc(context.lookup(), ctx, lookup.docId(), values::add);
-                        } catch (Exception e) {
-                            // ignore errors - if they exist here then they existed at index time
-                            // and so on_script_error must have been set to `ignore`
-                        }
-                        return values;
-                    }
-                };
+                return FieldValues.valueFetcher(this.scriptValues, context);
             }
-
             return new SourceValueFetcher(name(), context, nullValue) {
                 @Override
                 protected Object parseSourceValue(Object value) {
@@ -1111,8 +1083,6 @@ public CollapseType collapseType() {
     private final Explicit<Boolean> coerce;
     private final Number nullValue;
     private final FieldValues<Number> scriptValues;
-    private final String onScriptError;
-
     private final boolean ignoreMalformedByDefault;
     private final boolean coerceByDefault;
 
@@ -1122,7 +1092,7 @@ private NumberFieldMapper(
             MultiFields multiFields,
             CopyTo copyTo,
             Builder builder) {
-        super(simpleName, mappedFieldType, multiFields, copyTo);
+        super(simpleName, mappedFieldType, multiFields, copyTo, builder.script.get() != null, builder.onScriptError.getValue());
         this.type = builder.type;
         this.indexed = builder.indexed.getValue();
         this.hasDocValues = builder.hasDocValues.getValue();
@@ -1133,7 +1103,6 @@ private NumberFieldMapper(
         this.ignoreMalformedByDefault = builder.ignoreMalformed.getDefaultValue().value();
         this.coerceByDefault = builder.coerce.getDefaultValue().value();
         this.scriptValues = builder.scriptValues();
-        this.onScriptError = builder.onScriptError.get();
         this.builder = builder;
     }
 
@@ -1145,10 +1114,6 @@ boolean ignoreMalformed() {
         return ignoreMalformed.value();
     }
 
-    String onScriptError() {
-        return onScriptError;
-    }
-
     @Override
     public NumberFieldType fieldType() {
         return (NumberFieldType) super.fieldType();
@@ -1161,11 +1126,6 @@ protected String contentType() {
 
     @Override
     protected void parseCreateField(ParseContext context) throws IOException {
-
-        if (this.scriptValues != null) {
-            throw new IllegalArgumentException("Cannot index data directly into a field with a [script] parameter");
-        }
-
         XContentParser parser = context.parser();
         Object value;
         Number numericValue = null;
@@ -1216,26 +1176,12 @@ private void indexValue(ParseContext context, Number numericValue) {
     }
 
     @Override
-    public boolean hasScript() {
-        return this.scriptValues != null;
-    }
-
-    @Override
-    public void executeScript(SearchLookup searchLookup, LeafReaderContext readerContext, int doc, ParseContext parseContext) {
-        assert this.scriptValues != null;
-        try {
-            this.scriptValues.valuesForDoc(searchLookup, readerContext, doc, value -> indexValue(parseContext, value));
-        } catch (Exception e) {
-            if ("ignore".equals(onScriptError)) {
-                parseContext.addIgnoredField(name());
-            } else {
-                throw new MapperParsingException("Error executing script on field [" + name() + "]", e);
-            }
-        }
+    protected void indexScriptValues(SearchLookup searchLookup, LeafReaderContext readerContext, int doc, ParseContext parseContext) {
+        this.scriptValues.valuesForDoc(searchLookup, readerContext, doc, value -> indexValue(parseContext, value));
     }
 
     @Override
     public FieldMapper.Builder getMergeBuilder() {
-        return new Builder(simpleName(), type, builder.compiler, ignoreMalformedByDefault, coerceByDefault).init(this);
+        return new Builder(simpleName(), type, builder.scriptCompiler, ignoreMalformedByDefault, coerceByDefault).init(this);
     }
 }
diff --git a/server/src/main/java/org/elasticsearch/index/mapper/TextFieldMapper.java b/server/src/main/java/org/elasticsearch/index/mapper/TextFieldMapper.java
index 59b0b7c256650..25947e2e89846 100644
--- a/server/src/main/java/org/elasticsearch/index/mapper/TextFieldMapper.java
+++ b/server/src/main/java/org/elasticsearch/index/mapper/TextFieldMapper.java
@@ -797,7 +797,7 @@ protected TextFieldMapper(String simpleName, FieldType fieldType,
                               SubFieldInfo prefixFieldInfo,
                               SubFieldInfo phraseFieldInfo,
                               MultiFields multiFields, CopyTo copyTo, Builder builder) {
-        super(simpleName, mappedFieldType, indexAnalyzers, multiFields, copyTo);
+        super(simpleName, mappedFieldType, indexAnalyzers, multiFields, copyTo, false, null);
         assert mappedFieldType.getTextSearchInfo().isTokenized();
         assert mappedFieldType.hasDocValues() == false;
         if (fieldType.indexOptions() == IndexOptions.NONE && fieldType().fielddata()) {
diff --git a/server/src/main/java/org/elasticsearch/script/BooleanFieldScript.java b/server/src/main/java/org/elasticsearch/script/BooleanFieldScript.java
index e15cb6d6208a2..3a1c849d5deb0 100644
--- a/server/src/main/java/org/elasticsearch/script/BooleanFieldScript.java
+++ b/server/src/main/java/org/elasticsearch/script/BooleanFieldScript.java
@@ -12,6 +12,7 @@
 import org.elasticsearch.search.lookup.SearchLookup;
 
 import java.util.Map;
+import java.util.function.Consumer;
 
 public abstract class BooleanFieldScript extends AbstractFieldScript {
 
@@ -45,6 +46,14 @@ public final void runForDoc(int docId) {
         execute();
     }
 
+    public final void runForDoc(int docId, Consumer<Boolean> consumer) {
+        runForDoc(docId);
+        int count = trues + falses;
+        for (int i = 0; i < count; i++) {
+            consumer.accept(i < falses ? false : true);
+        }
+    }
+
     /**
      * How many {@code true} values were returned for this document.
      */
@@ -59,7 +68,7 @@ public final int falses() {
         return falses;
     }
 
-    protected final void emit(boolean v) {
+    public final void emit(boolean v) {
         if (v) {
             trues++;
         } else {
diff --git a/server/src/main/java/org/elasticsearch/script/ScriptCompiler.java b/server/src/main/java/org/elasticsearch/script/ScriptCompiler.java
index ec64b78304e3a..c1df83fbf346b 100644
--- a/server/src/main/java/org/elasticsearch/script/ScriptCompiler.java
+++ b/server/src/main/java/org/elasticsearch/script/ScriptCompiler.java
@@ -22,4 +22,10 @@ public interface ScriptCompiler {
      */
     <T> T compile(Script script, ScriptContext<T> scriptContext);
 
+    ScriptCompiler NONE = new ScriptCompiler() {
+        @Override
+        public <T> T compile(Script script, ScriptContext<T> scriptContext) {
+            throw new UnsupportedOperationException();
+        }
+    };
 }
diff --git a/server/src/main/java/org/elasticsearch/search/lookup/FieldValues.java b/server/src/main/java/org/elasticsearch/search/lookup/FieldValues.java
index 87322d8f44aa3..9302f3113248a 100644
--- a/server/src/main/java/org/elasticsearch/search/lookup/FieldValues.java
+++ b/server/src/main/java/org/elasticsearch/search/lookup/FieldValues.java
@@ -9,7 +9,11 @@
 package org.elasticsearch.search.lookup;
 
 import org.apache.lucene.index.LeafReaderContext;
+import org.elasticsearch.index.mapper.ValueFetcher;
+import org.elasticsearch.index.query.SearchExecutionContext;
 
+import java.util.ArrayList;
+import java.util.List;
 import java.util.function.Consumer;
 
 /**
@@ -25,4 +29,33 @@ public interface FieldValues<T> {
      * @param consumer  called with each document value
      */
     void valuesForDoc(SearchLookup lookup, LeafReaderContext ctx, int doc, Consumer<T> consumer);
+
+    /**
+     * Creates a {@link ValueFetcher} that fetches values from a {@link FieldValues} instance
+     * @param fieldValues the source of the values
+     * @param context the search execution context
+     * @return the value fetcher
+     */
+    static ValueFetcher valueFetcher(FieldValues<?> fieldValues, SearchExecutionContext context) {
+        return new ValueFetcher() {
+            LeafReaderContext ctx;
+
+            @Override
+            public void setNextReader(LeafReaderContext context) {
+                this.ctx = context;
+            }
+
+            @Override
+            public List<Object> fetchValues(SourceLookup lookup)  {
+                List<Object> values = new ArrayList<>();
+                try {
+                    fieldValues.valuesForDoc(context.lookup(), ctx, lookup.docId(), values::add);
+                } catch (Exception e) {
+                    // ignore errors - if they exist here then they existed at index time
+                    // and so on_script_error must have been set to `ignore`
+                }
+                return values;
+            }
+        };
+    }
 }
diff --git a/server/src/test/java/org/elasticsearch/index/codec/CodecTests.java b/server/src/test/java/org/elasticsearch/index/codec/CodecTests.java
index 3590d47664f54..39c3a6f2a9001 100644
--- a/server/src/test/java/org/elasticsearch/index/codec/CodecTests.java
+++ b/server/src/test/java/org/elasticsearch/index/codec/CodecTests.java
@@ -30,6 +30,7 @@
 import org.elasticsearch.index.mapper.MapperService;
 import org.elasticsearch.index.similarity.SimilarityService;
 import org.elasticsearch.plugins.MapperPlugin;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.test.ESTestCase;
 import org.elasticsearch.test.IndexSettingsModule;
 
@@ -108,7 +109,7 @@ private CodecService createCodecService() throws IOException {
         MapperRegistry mapperRegistry = new MapperRegistry(Collections.emptyMap(), Collections.emptyMap(), Collections.emptyMap(),
             MapperPlugin.NOOP_FIELD_FILTER);
         MapperService service = new MapperService(settings, indexAnalyzers, xContentRegistry(), similarityService, mapperRegistry,
-                () -> null, () -> false, null);
+                () -> null, () -> false, ScriptCompiler.NONE);
         return new CodecService(service, LogManager.getLogger("test"));
     }
 
diff --git a/server/src/test/java/org/elasticsearch/index/fielddata/AbstractFieldDataTestCase.java b/server/src/test/java/org/elasticsearch/index/fielddata/AbstractFieldDataTestCase.java
index e0636cbe6d683..e797164cf390f 100644
--- a/server/src/test/java/org/elasticsearch/index/fielddata/AbstractFieldDataTestCase.java
+++ b/server/src/test/java/org/elasticsearch/index/fielddata/AbstractFieldDataTestCase.java
@@ -38,6 +38,7 @@
 import org.elasticsearch.indices.IndicesService;
 import org.elasticsearch.indices.fielddata.cache.IndicesFieldDataCache;
 import org.elasticsearch.plugins.Plugin;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.test.ESSingleNodeTestCase;
 import org.elasticsearch.test.InternalSettingsPlugin;
 import org.junit.After;
@@ -92,22 +93,22 @@ public <IFD extends IndexFieldData<?>> IFD getForField(String type, String field
                     .fielddata(true).build(contentPath).fieldType();
             }
         } else if (type.equals("float")) {
-            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.FLOAT, null, false, true)
+            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.FLOAT, ScriptCompiler.NONE, false, true)
                     .docValues(docValues).build(contentPath).fieldType();
         } else if (type.equals("double")) {
-            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.DOUBLE, null, false, true)
+            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.DOUBLE, ScriptCompiler.NONE, false, true)
                     .docValues(docValues).build(contentPath).fieldType();
         } else if (type.equals("long")) {
-            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.LONG, null, false, true)
+            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.LONG, ScriptCompiler.NONE, false, true)
                     .docValues(docValues).build(contentPath).fieldType();
         } else if (type.equals("int")) {
-            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.INTEGER, null, false, true)
+            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.INTEGER, ScriptCompiler.NONE, false, true)
                     .docValues(docValues).build(contentPath).fieldType();
         } else if (type.equals("short")) {
-            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.SHORT, null, false, true)
+            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.SHORT, ScriptCompiler.NONE, false, true)
                     .docValues(docValues).build(contentPath).fieldType();
         } else if (type.equals("byte")) {
-            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.BYTE, null, false, true)
+            fieldType = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.BYTE, ScriptCompiler.NONE, false, true)
                     .docValues(docValues).build(contentPath).fieldType();
         } else if (type.equals("geo_point")) {
             fieldType = new GeoPointFieldMapper.Builder(fieldName, false).docValues(docValues).build(contentPath).fieldType();
diff --git a/server/src/test/java/org/elasticsearch/index/fielddata/IndexFieldDataServiceTests.java b/server/src/test/java/org/elasticsearch/index/fielddata/IndexFieldDataServiceTests.java
index 6fecfd15566a6..5e37a1b8e11c0 100644
--- a/server/src/test/java/org/elasticsearch/index/fielddata/IndexFieldDataServiceTests.java
+++ b/server/src/test/java/org/elasticsearch/index/fielddata/IndexFieldDataServiceTests.java
@@ -36,6 +36,7 @@
 import org.elasticsearch.indices.IndicesService;
 import org.elasticsearch.indices.fielddata.cache.IndicesFieldDataCache;
 import org.elasticsearch.plugins.Plugin;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.search.lookup.SearchLookup;
 import org.elasticsearch.test.ESSingleNodeTestCase;
 import org.elasticsearch.test.IndexSettingsModule;
@@ -80,10 +81,10 @@ public void testGetForFieldDefaults() {
         assertTrue(fd instanceof SortedSetOrdinalsIndexFieldData);
 
         for (MappedFieldType mapper : Arrays.asList(
-                new NumberFieldMapper.Builder("int", BYTE, null, false, true).build(contentPath).fieldType(),
-                new NumberFieldMapper.Builder("int", SHORT, null, false, true).build(contentPath).fieldType(),
-                new NumberFieldMapper.Builder("int", INTEGER, null, false, true).build(contentPath).fieldType(),
-                new NumberFieldMapper.Builder("long", LONG, null, false, true).build(contentPath).fieldType()
+                new NumberFieldMapper.Builder("int", BYTE, ScriptCompiler.NONE, false, true).build(contentPath).fieldType(),
+                new NumberFieldMapper.Builder("int", SHORT, ScriptCompiler.NONE, false, true).build(contentPath).fieldType(),
+                new NumberFieldMapper.Builder("int", INTEGER, ScriptCompiler.NONE, false, true).build(contentPath).fieldType(),
+                new NumberFieldMapper.Builder("long", LONG, ScriptCompiler.NONE, false, true).build(contentPath).fieldType()
                 )) {
             ifdService.clear();
             fd = ifdService.getForField(mapper, "test", () -> {
@@ -92,7 +93,7 @@ public void testGetForFieldDefaults() {
             assertTrue(fd instanceof SortedNumericIndexFieldData);
         }
 
-        final MappedFieldType floatMapper = new NumberFieldMapper.Builder("float", NumberType.FLOAT, null, false, true)
+        final MappedFieldType floatMapper = new NumberFieldMapper.Builder("float", NumberType.FLOAT, ScriptCompiler.NONE, false, true)
                 .build(contentPath).fieldType();
         ifdService.clear();
         fd = ifdService.getForField(floatMapper, "test", () -> {
@@ -101,7 +102,7 @@ public void testGetForFieldDefaults() {
         assertTrue(fd instanceof SortedNumericIndexFieldData);
 
         final MappedFieldType doubleMapper
-            = new NumberFieldMapper.Builder("double", DOUBLE, null, false, true)
+            = new NumberFieldMapper.Builder("double", DOUBLE, ScriptCompiler.NONE, false, true)
                 .build(contentPath).fieldType();
         ifdService.clear();
         fd = ifdService.getForField(doubleMapper, "test", () -> {
@@ -321,6 +322,6 @@ public void testRequireDocValuesOnDoubles() {
 
     public void testRequireDocValuesOnBools() {
         doTestRequireDocValues(new BooleanFieldMapper.BooleanFieldType("field"));
-        doTestRequireDocValues(new BooleanFieldMapper.BooleanFieldType("field", true, false, false, null, Collections.emptyMap()));
+        doTestRequireDocValues(new BooleanFieldMapper.BooleanFieldType("field", true, false, false, null, null, Collections.emptyMap()));
     }
 }
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/AbstractScriptFieldTypeTestCase.java b/server/src/test/java/org/elasticsearch/index/mapper/AbstractScriptFieldTypeTestCase.java
index 32d96cd9ee916..a76aa7b606c98 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/AbstractScriptFieldTypeTestCase.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/AbstractScriptFieldTypeTestCase.java
@@ -311,6 +311,7 @@ protected final void minimalMapping(XContentBuilder b) throws IOException {
     }
 
     @Override
+    @SuppressWarnings("unchecked")
     protected <T> T compileScript(Script script, ScriptContext<T> context) {
         if (context == BooleanFieldScript.CONTEXT) {
             return (T) BooleanFieldScriptTests.DUMMY;
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/BooleanFieldMapperTests.java b/server/src/test/java/org/elasticsearch/index/mapper/BooleanFieldMapperTests.java
index 0aad098b7e19e..70207b9f495e4 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/BooleanFieldMapperTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/BooleanFieldMapperTests.java
@@ -24,6 +24,8 @@
 
 import java.io.IOException;
 
+import static org.hamcrest.Matchers.equalTo;
+
 public class BooleanFieldMapperTests extends MapperTestCase {
 
     @Override
@@ -197,4 +199,14 @@ protected Object generateRandomInputValue(MappedFieldType ft) {
                 throw new IllegalStateException();
         }
     }
+
+    public void testScriptAndPrecludedParameters() {
+        Exception e = expectThrows(MapperParsingException.class, () -> createDocumentMapper(fieldMapping(b -> {
+            b.field("type", "boolean");
+            b.field("script", "test");
+            b.field("null_value", true);
+        })));
+        assertThat(e.getMessage(),
+            equalTo("Failed to parse mapping [_doc]: Field [null_value] cannot be set in conjunction with field [script]"));
+    }
 }
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/BooleanFieldTypeTests.java b/server/src/test/java/org/elasticsearch/index/mapper/BooleanFieldTypeTests.java
index b10e2780c8a02..81b44ebf78d4e 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/BooleanFieldTypeTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/BooleanFieldTypeTests.java
@@ -49,7 +49,7 @@ public void testFetchSourceValue() throws IOException {
         assertEquals(Collections.singletonList(false), fetchSourceValue(fieldType, ""));
 
         MappedFieldType nullFieldType = new BooleanFieldMapper.BooleanFieldType(
-            "field", true, false, true, true, Collections.emptyMap()
+            "field", true, false, true, true, null, Collections.emptyMap()
         );
         assertEquals(Collections.singletonList(true), fetchSourceValue(nullFieldType, null));
     }
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/BooleanScriptFieldTypeTests.java b/server/src/test/java/org/elasticsearch/index/mapper/BooleanScriptFieldTypeTests.java
index 913e34aa22c39..0eb5f03f4a039 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/BooleanScriptFieldTypeTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/BooleanScriptFieldTypeTests.java
@@ -32,12 +32,13 @@
 import org.elasticsearch.common.xcontent.XContentParser.Token;
 import org.elasticsearch.common.xcontent.XContentType;
 import org.elasticsearch.common.xcontent.json.JsonXContent;
+import org.elasticsearch.index.fielddata.BooleanScriptFieldData;
 import org.elasticsearch.index.fielddata.ScriptDocValues;
 import org.elasticsearch.index.query.SearchExecutionContext;
-import org.elasticsearch.index.fielddata.BooleanScriptFieldData;
 import org.elasticsearch.script.BooleanFieldScript;
 import org.elasticsearch.script.ScoreScript;
 import org.elasticsearch.script.Script;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.script.ScriptType;
 import org.elasticsearch.search.MultiValueMode;
 import org.elasticsearch.test.ESTestCase;
@@ -352,7 +353,7 @@ protected Query randomTermsQuery(MappedFieldType ft, SearchExecutionContext ctx)
     }
 
     public void testDualingQueries() throws IOException {
-        BooleanFieldMapper ootb = new BooleanFieldMapper.Builder("foo").build(new ContentPath());
+        BooleanFieldMapper ootb = new BooleanFieldMapper.Builder("foo", ScriptCompiler.NONE).build(new ContentPath());
         try (Directory directory = newDirectory(); RandomIndexWriter iw = new RandomIndexWriter(random(), directory)) {
             List<Boolean> values = randomList(0, 2, ESTestCase::randomBoolean);
             String source = "{\"foo\": " + values + "}";
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/BooleanScriptMapperTests.java b/server/src/test/java/org/elasticsearch/index/mapper/BooleanScriptMapperTests.java
new file mode 100644
index 0000000000000..d6fa6722568a7
--- /dev/null
+++ b/server/src/test/java/org/elasticsearch/index/mapper/BooleanScriptMapperTests.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+package org.elasticsearch.index.mapper;
+
+import org.apache.lucene.index.IndexableField;
+import org.apache.lucene.index.LeafReaderContext;
+import org.elasticsearch.script.BooleanFieldScript;
+import org.elasticsearch.search.lookup.SearchLookup;
+
+import java.util.Map;
+import java.util.function.Consumer;
+
+public class BooleanScriptMapperTests extends MapperScriptTestCase<BooleanFieldScript.Factory> {
+
+    private static BooleanFieldScript.Factory factory(Consumer<BooleanFieldScript> executor) {
+        return new BooleanFieldScript.Factory() {
+            @Override
+            public BooleanFieldScript.LeafFactory newFactory(String fieldName, Map<String, Object> params, SearchLookup searchLookup) {
+                return new BooleanFieldScript.LeafFactory() {
+                    @Override
+                    public BooleanFieldScript newInstance(LeafReaderContext ctx) {
+                        return new BooleanFieldScript(fieldName, params, searchLookup, ctx) {
+                            @Override
+                            public void execute() {
+                                executor.accept(this);
+                            }
+                        };
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    protected String type() {
+        return BooleanFieldMapper.CONTENT_TYPE;
+    }
+
+    @Override
+    protected BooleanFieldScript.Factory serializableScript() {
+        return factory(s -> {});
+    }
+
+    @Override
+    protected BooleanFieldScript.Factory errorThrowingScript() {
+        return factory(s -> {
+            throw new UnsupportedOperationException("Oops");
+        });
+    }
+
+    @Override
+    protected BooleanFieldScript.Factory singleValueScript() {
+        return factory(s -> s.emit(true));
+    }
+
+    @Override
+    protected BooleanFieldScript.Factory multipleValuesScript() {
+        return factory(s -> {
+            s.emit(true);
+            s.emit(false);
+        });
+    }
+
+    @Override
+    protected void assertMultipleValues(IndexableField[] fields) {
+        assertEquals(4, fields.length);
+        assertEquals("indexed,omitNorms,indexOptions=DOCS<field:F>", fields[0].toString());
+        assertEquals("docValuesType=SORTED_NUMERIC<field:0>", fields[1].toString());
+        assertEquals("indexed,omitNorms,indexOptions=DOCS<field:T>", fields[2].toString());
+        assertEquals("docValuesType=SORTED_NUMERIC<field:1>", fields[3].toString());
+    }
+
+    @Override
+    protected void assertDocValuesDisabled(IndexableField[] fields) {
+        assertEquals(1, fields.length);
+        assertEquals("indexed,omitNorms,indexOptions=DOCS<field:T>", fields[0].toString());
+    }
+
+    @Override
+    protected void assertIndexDisabled(IndexableField[] fields) {
+        assertEquals(1, fields.length);
+        assertEquals("docValuesType=SORTED_NUMERIC<field:1>", fields[0].toString());
+    }
+}
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/DoubleScriptMapperTests.java b/server/src/test/java/org/elasticsearch/index/mapper/DoubleScriptMapperTests.java
index 31c80e13be2df..fc36e63c29d52 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/DoubleScriptMapperTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/DoubleScriptMapperTests.java
@@ -13,7 +13,6 @@
 import org.elasticsearch.script.DoubleFieldScript;
 import org.elasticsearch.search.lookup.SearchLookup;
 
-import java.io.IOException;
 import java.util.Map;
 import java.util.function.Consumer;
 
@@ -40,7 +39,7 @@ public void execute() {
 
     @Override
     protected String type() {
-        return "double";
+        return NumberFieldMapper.NumberType.DOUBLE.typeName();
     }
 
     @Override
@@ -56,26 +55,20 @@ protected DoubleFieldScript.Factory errorThrowingScript() {
     }
 
     @Override
-    protected DoubleFieldScript.Factory compileScript(String name) {
-        if ("single-valued".equals(name)) {
-            return factory(s -> s.emit(3.14));
-        }
-        if ("multi-valued".equals(name)) {
-            return factory(s -> {
-                s.emit(3.14);
-                s.emit(2.78);
-            });
-        }
-        return super.compileScript(name);
+    protected DoubleFieldScript.Factory singleValueScript() {
+        return factory(s -> s.emit(3.14));
     }
 
-    public void testMultipleValues() throws IOException {
-        DocumentMapper mapper = createDocumentMapper(fieldMapping(b -> {
-            b.field("type", "double");
-            b.field("script", "multi-valued");
-        }));
-        ParsedDocument doc = mapper.parse(source(b -> {}));
-        IndexableField[] fields = doc.rootDoc().getFields("field");
+    @Override
+    protected DoubleFieldScript.Factory multipleValuesScript() {
+        return factory(s -> {
+            s.emit(3.14);
+            s.emit(2.78);
+        });
+    }
+
+    @Override
+    protected void assertMultipleValues(IndexableField[] fields) {
         assertEquals(4, fields.length);
         assertEquals("DoublePoint <field:3.14>", fields[0].toString());
         assertEquals("docValuesType=SORTED_NUMERIC<field:4614253070214989087>", fields[1].toString());
@@ -83,26 +76,14 @@ public void testMultipleValues() throws IOException {
         assertEquals("docValuesType=SORTED_NUMERIC<field:4613442422282062397>", fields[3].toString());
     }
 
-    public void testDocValuesDisabled() throws IOException {
-        DocumentMapper mapper = createDocumentMapper(fieldMapping(b -> {
-            b.field("type", "double");
-            b.field("script", "single-valued");
-            b.field("doc_values", false);
-        }));
-        ParsedDocument doc = mapper.parse(source(b -> {}));
-        IndexableField[] fields = doc.rootDoc().getFields("field");
+    @Override
+    protected void assertDocValuesDisabled(IndexableField[] fields) {
         assertEquals(1, fields.length);
         assertEquals("DoublePoint <field:3.14>", fields[0].toString());
     }
 
-    public void testIndexDisabled() throws IOException {
-        DocumentMapper mapper = createDocumentMapper(fieldMapping(b -> {
-            b.field("type", "double");
-            b.field("script", "single-valued");
-            b.field("index", false);
-        }));
-        ParsedDocument doc = mapper.parse(source(b -> {}));
-        IndexableField[] fields = doc.rootDoc().getFields("field");
+    @Override
+    protected void assertIndexDisabled(IndexableField[] fields) {
         assertEquals(1, fields.length);
         assertEquals("docValuesType=SORTED_NUMERIC<field:4614253070214989087>", fields[0].toString());
     }
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/ExternalMapper.java b/server/src/test/java/org/elasticsearch/index/mapper/ExternalMapper.java
index 407440e9e4f0b..178b3945a6665 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/ExternalMapper.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/ExternalMapper.java
@@ -18,6 +18,7 @@
 import org.elasticsearch.index.analysis.IndexAnalyzers;
 import org.elasticsearch.index.analysis.NamedAnalyzer;
 import org.elasticsearch.index.query.SearchExecutionContext;
+import org.elasticsearch.script.ScriptCompiler;
 
 import java.io.IOException;
 import java.nio.charset.Charset;
@@ -52,7 +53,7 @@ public static class Names {
     public static class Builder extends FieldMapper.Builder {
 
         private final BinaryFieldMapper.Builder binBuilder = new BinaryFieldMapper.Builder(Names.FIELD_BIN);
-        private final BooleanFieldMapper.Builder boolBuilder = new BooleanFieldMapper.Builder(Names.FIELD_BOOL);
+        private final BooleanFieldMapper.Builder boolBuilder = new BooleanFieldMapper.Builder(Names.FIELD_BOOL, ScriptCompiler.NONE);
         private final GeoPointFieldMapper.Builder latLonPointBuilder = new GeoPointFieldMapper.Builder(Names.FIELD_POINT, false);
         private final GeoShapeFieldMapper.Builder shapeBuilder = new GeoShapeFieldMapper.Builder(Names.FIELD_SHAPE, false, true);
         private final LegacyGeoShapeFieldMapper.Builder legacyShapeBuilder
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/FieldAliasMapperValidationTests.java b/server/src/test/java/org/elasticsearch/index/mapper/FieldAliasMapperValidationTests.java
index d6936646ea5ec..963752872e663 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/FieldAliasMapperValidationTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/FieldAliasMapperValidationTests.java
@@ -9,6 +9,7 @@
 
 import org.elasticsearch.Version;
 import org.elasticsearch.common.Explicit;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.test.ESTestCase;
 
 import java.util.Arrays;
@@ -175,7 +176,7 @@ public void testFieldAliasWithDifferentNestedScopes() {
     }
 
     private static FieldMapper createFieldMapper(String parent, String name) {
-        return new BooleanFieldMapper.Builder(name).build(new ContentPath(parent));
+        return new BooleanFieldMapper.Builder(name, ScriptCompiler.NONE).build(new ContentPath(parent));
     }
 
     private static ObjectMapper createObjectMapper(String name) {
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/IndexTimeScriptTests.java b/server/src/test/java/org/elasticsearch/index/mapper/IndexTimeScriptTests.java
index 86d86865c69ef..cf0df244082d9 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/IndexTimeScriptTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/IndexTimeScriptTests.java
@@ -295,10 +295,5 @@ public void execute() {
         public void emitValue(double v) {
             super.emit(v);
         }
-
-        public List<Object> extractValuesFromSource(String path) {
-            return super.extractFromSource(path);
-        }
     }
-
 }
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/LongScriptMapperTests.java b/server/src/test/java/org/elasticsearch/index/mapper/LongScriptMapperTests.java
index 520324bd56c42..c3a96b1de8757 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/LongScriptMapperTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/LongScriptMapperTests.java
@@ -13,7 +13,6 @@
 import org.elasticsearch.script.LongFieldScript;
 import org.elasticsearch.search.lookup.SearchLookup;
 
-import java.io.IOException;
 import java.util.Map;
 import java.util.function.Consumer;
 
@@ -40,7 +39,7 @@ public void execute() {
 
     @Override
     protected String type() {
-        return "long";
+        return NumberFieldMapper.NumberType.LONG.typeName();
     }
 
     @Override
@@ -56,26 +55,20 @@ protected LongFieldScript.Factory errorThrowingScript() {
     }
 
     @Override
-    protected LongFieldScript.Factory compileScript(String name) {
-        if ("single-valued".equals(name)) {
-            return factory(s -> s.emit(4));
-        }
-        if ("multi-valued".equals(name)) {
-            return factory(s -> {
-                s.emit(1);
-                s.emit(2);
-            });
-        }
-        return super.compileScript(name);
+    protected LongFieldScript.Factory singleValueScript() {
+        return factory(s -> s.emit(4));
     }
 
-    public void testMultipleValues() throws IOException {
-        DocumentMapper mapper = createDocumentMapper(fieldMapping(b -> {
-            b.field("type", "long");
-            b.field("script", "multi-valued");
-        }));
-        ParsedDocument doc = mapper.parse(source(b -> {}));
-        IndexableField[] fields = doc.rootDoc().getFields("field");
+    @Override
+    protected LongFieldScript.Factory multipleValuesScript() {
+        return factory(s -> {
+            s.emit(1);
+            s.emit(2);
+        });
+    }
+
+    @Override
+    protected void assertMultipleValues(IndexableField[] fields) {
         assertEquals(4, fields.length);
         assertEquals("LongPoint <field:1>", fields[0].toString());
         assertEquals("docValuesType=SORTED_NUMERIC<field:1>", fields[1].toString());
@@ -83,28 +76,15 @@ public void testMultipleValues() throws IOException {
         assertEquals("docValuesType=SORTED_NUMERIC<field:2>", fields[3].toString());
     }
 
-    public void testDocValuesDisabled() throws IOException {
-        DocumentMapper mapper = createDocumentMapper(fieldMapping(b -> {
-            b.field("type", "long");
-            b.field("script", "single-valued");
-            b.field("doc_values", false);
-        }));
-        ParsedDocument doc = mapper.parse(source(b -> {}));
-        IndexableField[] fields = doc.rootDoc().getFields("field");
+    @Override
+    protected void assertDocValuesDisabled(IndexableField[] fields) {
         assertEquals(1, fields.length);
         assertEquals("LongPoint <field:4>", fields[0].toString());
     }
 
-    public void testIndexDisabled() throws IOException {
-        DocumentMapper mapper = createDocumentMapper(fieldMapping(b -> {
-            b.field("type", "long");
-            b.field("script", "single-valued");
-            b.field("index", false);
-        }));
-        ParsedDocument doc = mapper.parse(source(b -> {}));
-        IndexableField[] fields = doc.rootDoc().getFields("field");
+    @Override
+    protected void assertIndexDisabled(IndexableField[] fields) {
         assertEquals(1, fields.length);
         assertEquals("docValuesType=SORTED_NUMERIC<field:4>", fields[0].toString());
     }
-
 }
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/MultiFieldsSerializationTests.java b/server/src/test/java/org/elasticsearch/index/mapper/MultiFieldsSerializationTests.java
index 05e014544c400..67259df48e3da 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/MultiFieldsSerializationTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/MultiFieldsSerializationTests.java
@@ -9,6 +9,7 @@
 package org.elasticsearch.index.mapper;
 
 import org.elasticsearch.common.Strings;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.test.ESTestCase;
 
 import java.util.ArrayList;
@@ -35,10 +36,10 @@ public void testSorting() {
         sortedNames.sort(Comparator.naturalOrder());
 
         for (String name : names) {
-            builder.add(new BooleanFieldMapper.Builder(name));
+            builder.add(new BooleanFieldMapper.Builder(name, ScriptCompiler.NONE));
         }
 
-        Mapper.Builder root = new BooleanFieldMapper.Builder("root");
+        Mapper.Builder root = new BooleanFieldMapper.Builder("root", ScriptCompiler.NONE);
         FieldMapper.MultiFields multiFields = builder.build(root, new ContentPath());
 
         String serialized = Strings.toString(multiFields);
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/NumberFieldMapperTests.java b/server/src/test/java/org/elasticsearch/index/mapper/NumberFieldMapperTests.java
index 935ac72e685e5..4c9951536be04 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/NumberFieldMapperTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/NumberFieldMapperTests.java
@@ -68,7 +68,7 @@ protected void registerParameters(ParameterChecker checker) throws IOException {
                     b.field("script", "test");
                     b.field("on_script_error", "ignore");
                 },
-                m -> assertThat(((NumberFieldMapper)m).onScriptError(), equalTo("ignore")));
+                m -> assertThat((m).onScriptError, equalTo("ignore")));
         }
     }
 
diff --git a/server/src/test/java/org/elasticsearch/index/mapper/NumberFieldTypeTests.java b/server/src/test/java/org/elasticsearch/index/mapper/NumberFieldTypeTests.java
index bdfe0da1ffb09..bcac8b00ad0eb 100644
--- a/server/src/test/java/org/elasticsearch/index/mapper/NumberFieldTypeTests.java
+++ b/server/src/test/java/org/elasticsearch/index/mapper/NumberFieldTypeTests.java
@@ -9,7 +9,6 @@
 package org.elasticsearch.index.mapper;
 
 import com.carrotsearch.randomizedtesting.generators.RandomPicks;
-
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.DoublePoint;
 import org.apache.lucene.document.FloatPoint;
@@ -42,6 +41,7 @@
 import org.elasticsearch.index.mapper.NumberFieldMapper.NumberFieldType;
 import org.elasticsearch.index.mapper.NumberFieldMapper.NumberType;
 import org.elasticsearch.index.query.SearchExecutionContext;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.search.MultiValueMode;
 import org.junit.Before;
 
@@ -634,14 +634,14 @@ public void testParsePoint() {
     }
 
     public void testFetchSourceValue() throws IOException {
-        MappedFieldType mapper = new NumberFieldMapper.Builder("field", NumberType.INTEGER, null, false, true)
+        MappedFieldType mapper = new NumberFieldMapper.Builder("field", NumberType.INTEGER, ScriptCompiler.NONE, false, true)
             .build(new ContentPath())
             .fieldType();
         assertEquals(Collections.singletonList(3), fetchSourceValue(mapper, 3.14));
         assertEquals(Collections.singletonList(42), fetchSourceValue(mapper, "42.9"));
         assertEquals(org.elasticsearch.common.collect.List.of(3, 42), fetchSourceValues(mapper, 3.14, "foo", "42.9"));
 
-        MappedFieldType nullValueMapper = new NumberFieldMapper.Builder("field", NumberType.FLOAT, null, false, true)
+        MappedFieldType nullValueMapper = new NumberFieldMapper.Builder("field", NumberType.FLOAT, ScriptCompiler.NONE, false, true)
             .nullValue(2.71f)
             .build(new ContentPath())
             .fieldType();
@@ -650,7 +650,7 @@ public void testFetchSourceValue() throws IOException {
     }
 
     public void testFetchHalfFloatFromSource() throws IOException {
-        MappedFieldType mapper = new NumberFieldMapper.Builder("field", NumberType.HALF_FLOAT, null, false, true)
+        MappedFieldType mapper = new NumberFieldMapper.Builder("field", NumberType.HALF_FLOAT, ScriptCompiler.NONE, false, true)
             .build(new ContentPath())
             .fieldType();
         /*
diff --git a/server/src/test/java/org/elasticsearch/index/query/SearchExecutionContextTests.java b/server/src/test/java/org/elasticsearch/index/query/SearchExecutionContextTests.java
index 7e2b22c04d225..db8afaedbe8df 100644
--- a/server/src/test/java/org/elasticsearch/index/query/SearchExecutionContextTests.java
+++ b/server/src/test/java/org/elasticsearch/index/query/SearchExecutionContextTests.java
@@ -44,6 +44,8 @@
 import org.elasticsearch.index.mapper.FieldMapper;
 import org.elasticsearch.index.mapper.IndexFieldMapper;
 import org.elasticsearch.index.mapper.KeywordFieldMapper;
+import org.elasticsearch.index.mapper.KeywordScriptFieldType;
+import org.elasticsearch.index.mapper.LongScriptFieldType;
 import org.elasticsearch.index.mapper.MappedFieldType;
 import org.elasticsearch.index.mapper.Mapper;
 import org.elasticsearch.index.mapper.MapperParsingException;
@@ -59,8 +61,7 @@
 import org.elasticsearch.index.mapper.TestRuntimeField;
 import org.elasticsearch.index.mapper.TextFieldMapper;
 import org.elasticsearch.indices.IndicesModule;
-import org.elasticsearch.index.mapper.KeywordScriptFieldType;
-import org.elasticsearch.index.mapper.LongScriptFieldType;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.search.DocValueFormat;
 import org.elasticsearch.search.MultiValueMode;
 import org.elasticsearch.search.aggregations.support.ValuesSourceType;
@@ -455,7 +456,7 @@ private static MapperService createMapperService(
             indexSettings.getIndexVersionCreated(),
             searchExecutionContextSupplier,
             null,
-            null,
+            ScriptCompiler.NONE,
             indexAnalyzers,
             indexSettings,
             () -> true
diff --git a/test/framework/src/main/java/org/elasticsearch/index/MapperTestUtils.java b/test/framework/src/main/java/org/elasticsearch/index/MapperTestUtils.java
index 37b563a97fd76..f6708cc2b78c1 100644
--- a/test/framework/src/main/java/org/elasticsearch/index/MapperTestUtils.java
+++ b/test/framework/src/main/java/org/elasticsearch/index/MapperTestUtils.java
@@ -18,6 +18,7 @@
 import org.elasticsearch.index.mapper.MapperService;
 import org.elasticsearch.index.similarity.SimilarityService;
 import org.elasticsearch.indices.IndicesModule;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.test.IndexSettingsModule;
 
 import java.io.IOException;
@@ -55,6 +56,6 @@ public static MapperService newMapperService(NamedXContentRegistry xContentRegis
             xContentRegistry,
             similarityService,
             mapperRegistry,
-            () -> null, () -> false, null);
+            () -> null, () -> false, ScriptCompiler.NONE);
     }
 }
diff --git a/test/framework/src/main/java/org/elasticsearch/index/mapper/MapperScriptTestCase.java b/test/framework/src/main/java/org/elasticsearch/index/mapper/MapperScriptTestCase.java
index 381030db9f520..31cdef304a3d6 100644
--- a/test/framework/src/main/java/org/elasticsearch/index/mapper/MapperScriptTestCase.java
+++ b/test/framework/src/main/java/org/elasticsearch/index/mapper/MapperScriptTestCase.java
@@ -8,6 +8,7 @@
 
 package org.elasticsearch.index.mapper;
 
+import org.apache.lucene.index.IndexableField;
 import org.elasticsearch.common.Strings;
 import org.elasticsearch.script.Script;
 import org.elasticsearch.script.ScriptContext;
@@ -26,23 +27,29 @@ public abstract class MapperScriptTestCase<FactoryType> extends MapperServiceTes
 
     protected abstract FactoryType errorThrowingScript();
 
-    protected FactoryType compileScript(String name) {
-        throw new UnsupportedOperationException("Unknown script " + name);
-    }
+    protected abstract FactoryType singleValueScript();
+
+    protected abstract FactoryType multipleValuesScript();
 
     @Override
     @SuppressWarnings("unchecked")
-    protected final <T> T compileScript(Script script, ScriptContext<T> context) {
+    protected <T> T compileScript(Script script, ScriptContext<T> context) {
         if (script.getIdOrCode().equals("serializer_test")) {
             return (T) serializableScript();
         }
         if (script.getIdOrCode().equals("throws")) {
             return (T) errorThrowingScript();
         }
-        return (T) compileScript(script.getIdOrCode());
+        if (script.getIdOrCode().equals("single-valued")) {
+            return (T) singleValueScript();
+        }
+        if (script.getIdOrCode().equals("multi-valued")) {
+            return (T) multipleValuesScript();
+        }
+        throw new UnsupportedOperationException("Unknown script " + script.getIdOrCode());
     }
 
-    public void testSerialization() throws IOException {
+    public void testToXContent() throws IOException {
         DocumentMapper mapper = createDocumentMapper(mapping(b -> {
             b.startObject("scripted");
             b.field("type", type());
@@ -70,7 +77,7 @@ public void testCannotIndexDirectlyIntoScriptMapper() throws IOException {
         assertEquals("Cannot index data directly into a field with a [script] parameter", e.getCause().getMessage());
     }
 
-    public void testStoredScriptsNotPermitted() {
+    public final void testStoredScriptsNotPermitted() {
         Exception e = expectThrows(MapperParsingException.class, () -> createDocumentMapper(fieldMapping(b -> {
             b.field("type", type());
             b.startObject("script").field("id", "foo").endObject();
@@ -78,7 +85,7 @@ public void testStoredScriptsNotPermitted() {
         assertThat(e.getMessage(), equalTo("Failed to parse mapping [_doc]: stored scripts are not supported on field [field]"));
     }
 
-    public void testIndexAndDocValuesFalseNotPermitted() {
+    public final void testIndexAndDocValuesFalseNotPermitted() {
         Exception e = expectThrows(MapperParsingException.class, () -> createDocumentMapper(fieldMapping(b -> {
             b.field("type", type());
             b.field("index", false);
@@ -88,7 +95,7 @@ public void testIndexAndDocValuesFalseNotPermitted() {
         assertThat(e.getMessage(), containsString("Cannot define script on field with index:false and doc_values:false"));
     }
 
-    public void testScriptErrorParameterRequiresScript() {
+    public final void testOnScriptErrorParameterRequiresScript() {
         Exception e = expectThrows(MapperParsingException.class, () -> createDocumentMapper(fieldMapping(b -> {
             b.field("type", type());
             b.field("on_script_error", "ignore");
@@ -97,7 +104,7 @@ public void testScriptErrorParameterRequiresScript() {
             equalTo("Failed to parse mapping [_doc]: Field [on_script_error] requires field [script] to be configured"));
     }
 
-    public void testIgnoreScriptErrors() throws IOException {
+    public final void testIgnoreScriptErrors() throws IOException {
         DocumentMapper mapper = createDocumentMapper(mapping(b -> {
             b.startObject("message").field("type", "keyword").endObject();
             b.startObject("message_error");
@@ -114,7 +121,7 @@ public void testIgnoreScriptErrors() throws IOException {
         assertThat(doc.rootDoc().getField("_ignored").stringValue(), equalTo("message_error"));
     }
 
-    public void testRejectScriptErrors() throws IOException {
+    public final void testRejectScriptErrors() throws IOException {
         DocumentMapper mapper = createDocumentMapper(mapping(b -> {
             b.startObject("message").field("type", "keyword").endObject();
             b.startObject("message_error");
@@ -128,4 +135,39 @@ public void testRejectScriptErrors() throws IOException {
         Exception e = expectThrows(MapperParsingException.class, () -> mapper.parse(source(b -> b.field("message", "foo"))));
         assertThat(e.getMessage(), equalTo("Error executing script on field [message_error]"));
     }
+
+    public final void testMultipleValues() throws IOException {
+        DocumentMapper mapper = createDocumentMapper(fieldMapping(b -> {
+            b.field("type", type());
+            b.field("script", "multi-valued");
+        }));
+        ParsedDocument doc = mapper.parse(source(b -> {}));
+        assertMultipleValues(doc.rootDoc().getFields("field"));
+    }
+
+    protected abstract void assertMultipleValues(IndexableField[] fields);
+
+    public final void testDocValuesDisabled() throws IOException {
+        DocumentMapper mapper = createDocumentMapper(fieldMapping(b -> {
+            b.field("type", type());
+            b.field("script", "single-valued");
+            b.field("doc_values", false);
+        }));
+        ParsedDocument doc = mapper.parse(source(b -> {}));
+        assertDocValuesDisabled(doc.rootDoc().getFields("field"));
+    }
+
+    protected abstract void assertDocValuesDisabled(IndexableField[] fields);
+
+    public final void testIndexDisabled() throws IOException {
+        DocumentMapper mapper = createDocumentMapper(fieldMapping(b -> {
+            b.field("type", type());
+            b.field("script", "single-valued");
+            b.field("index", false);
+        }));
+        ParsedDocument doc = mapper.parse(source(b -> {}));
+        assertIndexDisabled(doc.rootDoc().getFields("field"));
+    }
+
+    protected abstract void assertIndexDisabled(IndexableField[] fields);
 }
diff --git a/test/framework/src/main/java/org/elasticsearch/index/mapper/MockFieldMapper.java b/test/framework/src/main/java/org/elasticsearch/index/mapper/MockFieldMapper.java
index b4aa7a9daffa2..8a496c3ccffbc 100644
--- a/test/framework/src/main/java/org/elasticsearch/index/mapper/MockFieldMapper.java
+++ b/test/framework/src/main/java/org/elasticsearch/index/mapper/MockFieldMapper.java
@@ -28,7 +28,7 @@ public MockFieldMapper(MappedFieldType fieldType) {
 
     public MockFieldMapper(MappedFieldType fieldType, Map<String, NamedAnalyzer> indexAnalyzers) {
         super(findSimpleName(fieldType.name()), fieldType, indexAnalyzers,
-            MultiFields.empty(), new CopyTo.Builder().build());
+            MultiFields.empty(), new CopyTo.Builder().build(), false, null);
     }
 
     public MockFieldMapper(String fullName,
diff --git a/test/framework/src/main/java/org/elasticsearch/search/aggregations/AggregatorTestCase.java b/test/framework/src/main/java/org/elasticsearch/search/aggregations/AggregatorTestCase.java
index b45857aa67234..249cc3a0c715c 100644
--- a/test/framework/src/main/java/org/elasticsearch/search/aggregations/AggregatorTestCase.java
+++ b/test/framework/src/main/java/org/elasticsearch/search/aggregations/AggregatorTestCase.java
@@ -92,6 +92,7 @@
 import org.elasticsearch.indices.breaker.CircuitBreakerService;
 import org.elasticsearch.indices.breaker.NoneCircuitBreakerService;
 import org.elasticsearch.plugins.SearchPlugin;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.script.ScriptService;
 import org.elasticsearch.search.NestedDocuments;
 import org.elasticsearch.search.SearchModule;
@@ -887,7 +888,7 @@ private void writeTestDoc(MappedFieldType fieldType, String fieldName, RandomInd
 
     private static class MockParserContext extends Mapper.TypeParser.ParserContext {
         MockParserContext() {
-            super(null, null, null, Version.CURRENT, null, null, null, null, null, null);
+            super(null, null, null, Version.CURRENT, null, null, ScriptCompiler.NONE, null, null, null);
         }
 
         @Override
diff --git a/test/framework/src/main/java/org/elasticsearch/test/AbstractBuilderTestCase.java b/test/framework/src/main/java/org/elasticsearch/test/AbstractBuilderTestCase.java
index fe20d2df09272..4e5c509bb5351 100644
--- a/test/framework/src/main/java/org/elasticsearch/test/AbstractBuilderTestCase.java
+++ b/test/framework/src/main/java/org/elasticsearch/test/AbstractBuilderTestCase.java
@@ -57,6 +57,7 @@
 import org.elasticsearch.plugins.SearchPlugin;
 import org.elasticsearch.script.MockScriptEngine;
 import org.elasticsearch.script.MockScriptService;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.script.ScriptContext;
 import org.elasticsearch.script.ScriptEngine;
 import org.elasticsearch.script.ScriptModule;
@@ -349,7 +350,7 @@ private static class ServiceHolder implements Closeable {
             similarityService = new SimilarityService(idxSettings, null, Collections.emptyMap());
             MapperRegistry mapperRegistry = indicesModule.getMapperRegistry();
             mapperService = new MapperService(idxSettings, indexAnalyzers, xContentRegistry, similarityService, mapperRegistry,
-                    () -> createShardContext(null), () -> false, null);
+                    () -> createShardContext(null), () -> false, ScriptCompiler.NONE);
             IndicesFieldDataCache indicesFieldDataCache = new IndicesFieldDataCache(nodeSettings, new IndexFieldDataCache.Listener() {
             });
             indexFieldDataService = new IndexFieldDataService(idxSettings, indicesFieldDataCache,
diff --git a/x-pack/plugin/mapper-aggregate-metric/src/main/java/org/elasticsearch/xpack/aggregatemetric/mapper/AggregateDoubleMetricFieldMapper.java b/x-pack/plugin/mapper-aggregate-metric/src/main/java/org/elasticsearch/xpack/aggregatemetric/mapper/AggregateDoubleMetricFieldMapper.java
index 0d6e03cfe1c64..691c1728eaa95 100644
--- a/x-pack/plugin/mapper-aggregate-metric/src/main/java/org/elasticsearch/xpack/aggregatemetric/mapper/AggregateDoubleMetricFieldMapper.java
+++ b/x-pack/plugin/mapper-aggregate-metric/src/main/java/org/elasticsearch/xpack/aggregatemetric/mapper/AggregateDoubleMetricFieldMapper.java
@@ -35,6 +35,7 @@
 import org.elasticsearch.index.mapper.ValueFetcher;
 import org.elasticsearch.index.query.QueryRewriteContext;
 import org.elasticsearch.index.query.SearchExecutionContext;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.search.DocValueFormat;
 import org.elasticsearch.search.MultiValueMode;
 import org.elasticsearch.search.lookup.SearchLookup;
@@ -184,9 +185,21 @@ public AggregateDoubleMetricFieldMapper build(ContentPath context) {
 
                 if (m == Metric.value_count) {
                     // value_count metric can only be an integer and not a double
-                    builder = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.INTEGER, null, false, false);
+                    builder = new NumberFieldMapper.Builder(
+                        fieldName,
+                        NumberFieldMapper.NumberType.INTEGER,
+                        ScriptCompiler.NONE,
+                        false,
+                        false
+                    );
                 } else {
-                    builder = new NumberFieldMapper.Builder(fieldName, NumberFieldMapper.NumberType.DOUBLE, null, false, true);
+                    builder = new NumberFieldMapper.Builder(
+                        fieldName,
+                        NumberFieldMapper.NumberType.DOUBLE,
+                        ScriptCompiler.NONE,
+                        false,
+                        true
+                    );
                 }
                 NumberFieldMapper fieldMapper = builder.build(context);
                 metricMappers.put(m, fieldMapper);
diff --git a/x-pack/plugin/rollup/src/test/java/org/elasticsearch/xpack/rollup/job/RollupIndexerIndexingTests.java b/x-pack/plugin/rollup/src/test/java/org/elasticsearch/xpack/rollup/job/RollupIndexerIndexingTests.java
index 4f62cdaba5969..ef8cc06df3503 100644
--- a/x-pack/plugin/rollup/src/test/java/org/elasticsearch/xpack/rollup/job/RollupIndexerIndexingTests.java
+++ b/x-pack/plugin/rollup/src/test/java/org/elasticsearch/xpack/rollup/job/RollupIndexerIndexingTests.java
@@ -40,8 +40,9 @@
 import org.elasticsearch.index.mapper.MappedFieldType;
 import org.elasticsearch.index.mapper.NumberFieldMapper;
 import org.elasticsearch.index.mapper.NumberFieldMapper.NumberType;
-import org.elasticsearch.index.query.SearchExecutionContext;
 import org.elasticsearch.index.query.RangeQueryBuilder;
+import org.elasticsearch.index.query.SearchExecutionContext;
+import org.elasticsearch.script.ScriptCompiler;
 import org.elasticsearch.search.aggregations.Aggregations;
 import org.elasticsearch.search.aggregations.AggregatorTestCase;
 import org.elasticsearch.search.aggregations.bucket.composite.CompositeAggregation;
@@ -552,7 +553,7 @@ private Map<String, MappedFieldType> createFieldTypes(RollupJobConfig job) {
 
         if (job.getGroupConfig().getHistogram() != null) {
             for (String field : job.getGroupConfig().getHistogram().getFields()) {
-                MappedFieldType ft = new NumberFieldMapper.Builder(field, NumberType.LONG, null, false, false)
+                MappedFieldType ft = new NumberFieldMapper.Builder(field, NumberType.LONG, ScriptCompiler.NONE, false, false)
                         .build(new ContentPath(0))
                         .fieldType();
                 fieldTypes.put(ft.name(), ft);
@@ -570,7 +571,7 @@ private Map<String, MappedFieldType> createFieldTypes(RollupJobConfig job) {
 
         if (job.getMetricsConfig() != null) {
             for (MetricConfig metric : job.getMetricsConfig()) {
-                MappedFieldType ft = new NumberFieldMapper.Builder(metric.getField(), NumberType.LONG, null, false, false)
+                MappedFieldType ft = new NumberFieldMapper.Builder(metric.getField(), NumberType.LONG, ScriptCompiler.NONE, false, false)
                         .build(new ContentPath(0))
                         .fieldType();
                 fieldTypes.put(ft.name(), ft);