| // Copyright 2018 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.devtools.build.lib.starlarkbuildapi; |
| |
| import com.google.devtools.build.docgen.annot.DocCategory; |
| import com.google.devtools.build.lib.cmdline.Label; |
| import com.google.devtools.build.lib.packages.semantics.BuildLanguageOptions; |
| import net.starlark.java.annot.Param; |
| import net.starlark.java.annot.ParamType; |
| import net.starlark.java.annot.StarlarkBuiltin; |
| import net.starlark.java.annot.StarlarkMethod; |
| import net.starlark.java.eval.Dict; |
| import net.starlark.java.eval.EvalException; |
| import net.starlark.java.eval.NoneType; |
| import net.starlark.java.eval.Sequence; |
| import net.starlark.java.eval.Starlark; |
| import net.starlark.java.eval.StarlarkFunction; |
| import net.starlark.java.eval.StarlarkInt; |
| import net.starlark.java.eval.StarlarkThread; |
| import net.starlark.java.eval.StarlarkValue; |
| |
| /** |
| * The "attr" module of the Build API. |
| * |
| * <p>It exposes functions (for example, 'attr.string', 'attr.label_list', etc.) to Starlark users |
| * for creating attribute definitions. |
| */ |
| @StarlarkBuiltin( |
| name = "attr", |
| category = DocCategory.TOP_LEVEL_MODULE, |
| doc = |
| "This is a top-level module for defining the attribute schemas of a rule or aspect. Each" |
| + " function returns an object representing the schema of a single attribute. These" |
| + " objects are used as the values of the <code>attrs</code> dictionary argument of <a" |
| + " href=\"../globals/bzl.html#rule\"><code>rule()</code></a> and <a" |
| + " href=\"../globals/bzl.html#aspect\"><code>aspect()</code></a>.<p>See the Rules page" |
| + " for more on <a href='https://bazel.build/extending/rules#attributes'>defining</a>" |
| + " and <a href='https://bazel.build/extending/rules#implementation_function'>using</a>" |
| + " attributes.") |
| public interface StarlarkAttrModuleApi extends StarlarkValue { |
| |
| // dependency and output attributes |
| String LABEL_PARAGRAPH = |
| "<p>This attribute contains unique <a href='../builtins/Label.html'><code>Label</code></a>" |
| + " values. If a string is supplied in place of a <code>Label</code>, it will be" |
| + " converted using the <a href='../builtins/Label.html#Label'>label constructor</a>. The" |
| + " relative parts of the label path, including the (possibly renamed) repository, are" |
| + " resolved with respect to the instantiated target's package."; |
| |
| // attr.label, attr.label_list, attr.label_keyed_string_dict |
| String DEPENDENCY_ATTR_TEXT = |
| LABEL_PARAGRAPH |
| + "<p>At analysis time (within the rule's implementation function), when retrieving the" |
| + " attribute value from <code>ctx.attr</code>, labels are replaced by the corresponding" |
| + " <a href='../builtins/Target.html'><code>Target</code></a>s. This allows you to access" |
| + " the providers of the current target's dependencies."; |
| |
| // attr.output, attr.output_list |
| String OUTPUT_ATTR_TEXT = |
| LABEL_PARAGRAPH |
| + "<p>At analysis time, the corresponding <a" |
| + " href='../builtins/File.html'><code>File</code></a> can be retrieved using <a" |
| + " href='../builtins/ctx.html#outputs'><code>ctx.outputs</code></a>."; |
| |
| String ALLOW_FILES_ARG = "allow_files"; |
| String ALLOW_FILES_DOC = |
| "Whether <code>File</code> targets are allowed. Can be <code>True</code>, <code>False</code> " |
| + "(default), or a list of file extensions that are allowed (for example, " |
| + "<code>[\".cc\", \".cpp\"]</code>)."; |
| |
| String ALLOW_RULES_ARG = "allow_rules"; |
| String ALLOW_RULES_DOC = |
| "Which rule targets (name of the classes) are allowed. This is deprecated (kept only for " |
| + "compatibility), use providers instead."; |
| |
| String ASPECTS_ARG = "aspects"; |
| String ASPECTS_ARG_DOC = |
| "Aspects that should be applied to the dependency or dependencies specified by this " |
| + "attribute."; |
| |
| String SKIP_VALIDATIONS_ARG = "skip_validations"; |
| String SKIP_VALIDATIONS_ARG_DOC = |
| "If true, validation actions of transitive dependencies from " |
| + "this attribute will not run. This is a temporary mitigation and WILL be removed in " |
| + "the future."; |
| |
| String CONFIGURABLE_ARG = "configurable"; |
| String CONFIGURABLE_ARG_DOC = "If true, this attribute supports select()s"; |
| |
| String CONFIGURATION_ARG = "cfg"; |
| // TODO(b/151742236): Update when new Starlark-based configuration framework is implemented. |
| String CONFIGURATION_DOC = |
| "<a href=\"https://bazel.build/extending/rules#configurations\">" |
| + "Configuration</a> of the attribute. It can be either <code>\"exec\"</code>, which " |
| + "indicates that the dependency is built for the <code>execution platform</code>, or " |
| + "<code>\"target\"</code>, which indicates that the dependency is build for the " |
| + "<code>target platform</code>. A typical example of the difference is when building " |
| + "mobile apps, where the <code>target platform</code> is <code>Android</code> or " |
| + "<code>iOS</code> while the <code>execution platform</code> is <code>Linux</code>, " |
| + "<code>macOS</code>, or <code>Windows</code>."; |
| |
| String DEFAULT_ARG = "default"; |
| // A trailing space is required because it's often prepended to other sentences |
| String DEFAULT_DOC = |
| "A default value to use if no value for this attribute is given when instantiating the rule."; |
| |
| String DOC_ARG = "doc"; |
| String DOC_DOC = |
| "A description of the attribute that can be extracted by documentation generating tools."; |
| |
| String EXECUTABLE_ARG = "executable"; |
| String EXECUTABLE_DOC = |
| "True if the dependency has to be executable. This means the label must refer to an " |
| + "executable file, or to a rule that outputs an executable file. Access the label " |
| + "with <code>ctx.executable.<attribute_name></code>."; |
| |
| String FLAGS_ARG = "flags"; |
| String FLAGS_DOC = "Deprecated, will be removed."; |
| |
| String MANDATORY_ARG = "mandatory"; |
| String MANDATORY_DOC = |
| "If true, the value must be specified explicitly (even if it has a <code>default</code>)."; |
| |
| String ALLOW_EMPTY_ARG = "allow_empty"; |
| String ALLOW_EMPTY_DOC = "True if the attribute can be empty."; |
| |
| String PROVIDERS_ARG = "providers"; |
| String PROVIDERS_DOC = |
| "The providers that must be given by any dependency appearing in this attribute.<p>The format" |
| + " of this argument is a list of lists of providers -- <code>*Info</code> objects" |
| + " returned by <a href='../globals/bzl.html#provider'><code>provider()</code></a> (or in" |
| + " the case of a legacy provider, its string name). The dependency must return ALL" |
| + " providers mentioned in at least ONE of the inner lists. As a convenience, this" |
| + " argument may also be a single-level list of providers, in which case it is wrapped in" |
| + " an outer list with one element. It is NOT required that the rule of the dependency" |
| + " advertises those providers in its <code>provides</code> parameter, however, it is" |
| + " considered best practice."; |
| |
| String ALLOW_SINGLE_FILE_ARG = "allow_single_file"; |
| |
| String VALUES_ARG = "values"; |
| String VALUES_DOC = |
| "The list of allowed values for the attribute. An error is raised if any other " |
| + "value is given."; |
| |
| @StarlarkMethod( |
| name = "int", |
| doc = |
| "Creates a schema for an integer attribute. The value must be in the signed 32-bit range." |
| + " The corresponding <a href='../builtins/ctx.html#attr'><code>ctx.attr</code></a>" |
| + " attribute will be of type <a href='../core/int.html'><code>int</code></a>.", |
| parameters = { |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| defaultValue = "0", |
| doc = DEFAULT_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| doc = MANDATORY_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = VALUES_ARG, |
| allowedTypes = {@ParamType(type = Sequence.class, generic1 = StarlarkInt.class)}, |
| defaultValue = "[]", |
| doc = VALUES_DOC, |
| named = true, |
| positional = false) |
| }, |
| useStarlarkThread = true) |
| Descriptor intAttribute( |
| Object configurable, |
| StarlarkInt defaultValue, |
| Object doc, |
| Boolean mandatory, |
| Sequence<?> values, |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "string", |
| doc = "Creates a schema for a <a href='../core/string.html#attr'>string</a> attribute.", |
| parameters = { |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| defaultValue = "''", |
| doc = DEFAULT_DOC, |
| allowedTypes = { |
| @ParamType(type = String.class), |
| @ParamType(type = NativeComputedDefaultApi.class) |
| }, |
| named = true, |
| positional = false), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| doc = MANDATORY_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = VALUES_ARG, |
| allowedTypes = { |
| @ParamType(type = Sequence.class, generic1 = String.class), |
| }, |
| defaultValue = "[]", |
| doc = VALUES_DOC, |
| named = true, |
| positional = false) |
| }, |
| useStarlarkThread = true) |
| Descriptor stringAttribute( |
| Object configurable, |
| Object defaultValue, |
| Object doc, |
| Boolean mandatory, |
| Sequence<?> values, |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "label", |
| doc = |
| "<p>Creates a schema for a label attribute. This is a dependency attribute.</p>" |
| + DEPENDENCY_ATTR_TEXT |
| + "<p>In addition to ordinary source files, this kind of attribute is often used to" |
| + " refer to a tool -- for example, a compiler. Such tools are considered to be" |
| + " dependencies, just like source files. To avoid requiring users to specify the" |
| + " tool's label every time they use the rule in their BUILD files, you can hard-code" |
| + " the label of a canonical tool as the <code>default</code> value of this" |
| + " attribute. If you also want to prevent users from overriding this default, you" |
| + " can make the attribute private by giving it a name that starts with an" |
| + " underscore. See the <a" |
| + " href='https://bazel.build/extending/rules#private-attributes'>Rules</a> page" |
| + " for more information.", |
| parameters = { |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| allowedTypes = { |
| @ParamType(type = Label.class), |
| @ParamType(type = String.class), |
| @ParamType(type = LateBoundDefaultApi.class), |
| @ParamType(type = NativeComputedDefaultApi.class), |
| // TODO(adonovan): remove StarlarkFunction. It's undocumented, |
| // unused by Google's .bzl files, and likely unused in Bazel. |
| // I suspect it is a vestige of a "computed defaults" feature |
| // that was never fully exposed to Starlark (or was since |
| // withdrawn). |
| @ParamType(type = StarlarkFunction.class), |
| @ParamType(type = NoneType.class), |
| }, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = |
| DEFAULT_DOC |
| + "Use a string or the <a" |
| + " href=\"../builtins/Label.html#Label\"><code>Label</code></a> function to" |
| + " specify a default value, for example, <code>attr.label(default =" |
| + " \"//a:b\")</code>."), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = EXECUTABLE_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = EXECUTABLE_DOC), |
| @Param( |
| name = ALLOW_FILES_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Sequence.class, generic1 = String.class), |
| @ParamType(type = NoneType.class), |
| }, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = ALLOW_FILES_DOC), |
| @Param( |
| name = ALLOW_SINGLE_FILE_ARG, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = |
| "This is similar to <code>allow_files</code>, with the restriction that the label " |
| + "must correspond to a single <a href=\"../builtins/File.html\">File</a>. " |
| + "Access it through <code>ctx.file.<attribute_name></code>."), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = MANDATORY_DOC), |
| @Param( |
| name = SKIP_VALIDATIONS_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = SKIP_VALIDATIONS_ARG_DOC), |
| @Param( |
| name = PROVIDERS_ARG, |
| defaultValue = "[]", |
| named = true, |
| positional = false, |
| doc = PROVIDERS_DOC), |
| @Param( |
| name = ALLOW_RULES_ARG, |
| allowedTypes = { |
| @ParamType(type = Sequence.class, generic1 = String.class), |
| @ParamType(type = NoneType.class), |
| }, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = ALLOW_RULES_DOC), |
| @Param( |
| name = CONFIGURATION_ARG, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = |
| CONFIGURATION_DOC |
| + " This parameter is required if <code>executable</code> is True " |
| + "to guard against accidentally building host tools in the " |
| + "target configuration. <code>\"target\"</code> has no semantic " |
| + "effect, so don't set it when <code>executable</code> is False " |
| + "unless it really helps clarify your intentions."), |
| @Param( |
| name = ASPECTS_ARG, |
| allowedTypes = {@ParamType(type = Sequence.class, generic1 = StarlarkAspectApi.class)}, |
| defaultValue = "[]", |
| named = true, |
| positional = false, |
| doc = ASPECTS_ARG_DOC), |
| @Param( |
| name = FLAGS_ARG, |
| defaultValue = "unbound", |
| allowedTypes = {@ParamType(type = Sequence.class, generic1 = String.class)}, |
| named = true, |
| positional = false, |
| documented = false, |
| doc = FLAGS_DOC) |
| }, |
| useStarlarkThread = true) |
| Descriptor labelAttribute( |
| Object configurable, |
| Object defaultValue, |
| Object doc, |
| Boolean executable, |
| Object allowFiles, |
| Object allowSingleFile, |
| Boolean mandatory, |
| Boolean skipValidations, |
| Sequence<?> providers, |
| Object allowRules, |
| Object cfg, |
| Sequence<?> aspects, |
| Object flags, // Sequence<String> expected |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "string_list", |
| doc = "Creates a schema for a list-of-strings attribute.", |
| parameters = { |
| @Param(name = MANDATORY_ARG, defaultValue = "False", doc = MANDATORY_DOC, named = true), |
| @Param(name = ALLOW_EMPTY_ARG, defaultValue = "True", doc = ALLOW_EMPTY_DOC, named = true), |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| allowedTypes = { |
| @ParamType(type = Sequence.class, generic1 = String.class), |
| @ParamType(type = NativeComputedDefaultApi.class) |
| }, |
| defaultValue = "[]", |
| doc = DEFAULT_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false) |
| }, |
| useStarlarkThread = true) |
| Descriptor stringListAttribute( |
| Boolean mandatory, |
| Boolean allowEmpty, |
| Object configurable, |
| Object defaultValue, |
| Object doc, |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "int_list", |
| doc = |
| "Creates a schema for a list-of-integers attribute. Each element must be in the signed" |
| + " 32-bit range.", |
| parameters = { |
| @Param(name = MANDATORY_ARG, defaultValue = "False", doc = MANDATORY_DOC, named = true), |
| @Param(name = ALLOW_EMPTY_ARG, defaultValue = "True", doc = ALLOW_EMPTY_DOC, named = true), |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| allowedTypes = {@ParamType(type = Sequence.class, generic1 = StarlarkInt.class)}, |
| defaultValue = "[]", |
| doc = DEFAULT_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false) |
| }, |
| useStarlarkThread = true) |
| Descriptor intListAttribute( |
| Boolean mandatory, |
| Boolean allowEmpty, |
| Object configurable, |
| Sequence<?> defaultValue, |
| Object doc, |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "label_list", |
| doc = |
| "<p>Creates a schema for a list-of-labels attribute. This is a dependency attribute. " |
| + "The corresponding <a href='../builtins/ctx.html#attr'><code>ctx.attr</code></a> " |
| + "attribute will be of type <a href='../core/list.html'>list</a> of " |
| + "<a href='../builtins/Target.html'><code>Target</code>s</a>.</p>" |
| + DEPENDENCY_ATTR_TEXT, |
| parameters = { |
| @Param(name = ALLOW_EMPTY_ARG, defaultValue = "True", doc = ALLOW_EMPTY_DOC, named = true), |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| allowedTypes = { |
| @ParamType(type = Sequence.class, generic1 = Label.class), |
| @ParamType(type = StarlarkFunction.class) |
| }, |
| defaultValue = "[]", |
| named = true, |
| positional = false, |
| doc = |
| DEFAULT_DOC |
| + "Use strings or the <a" |
| + " href=\"../builtins/Label.html#Label\"><code>Label</code></a> function to" |
| + " specify default values, for example, <code>attr.label_list(default =" |
| + " [\"//a:b\", \"//a:c\"])</code>."), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = ALLOW_FILES_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Sequence.class, generic1 = String.class), |
| @ParamType(type = NoneType.class), |
| }, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = ALLOW_FILES_DOC), |
| @Param( |
| name = ALLOW_RULES_ARG, |
| allowedTypes = { |
| @ParamType(type = Sequence.class, generic1 = String.class), |
| @ParamType(type = NoneType.class), |
| }, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = ALLOW_RULES_DOC), |
| @Param( |
| name = PROVIDERS_ARG, |
| defaultValue = "[]", |
| named = true, |
| positional = false, |
| doc = PROVIDERS_DOC), |
| @Param( |
| name = FLAGS_ARG, |
| allowedTypes = {@ParamType(type = Sequence.class, generic1 = String.class)}, |
| defaultValue = "[]", |
| named = true, |
| positional = false, |
| doc = FLAGS_DOC), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = MANDATORY_DOC), |
| @Param( |
| name = SKIP_VALIDATIONS_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = SKIP_VALIDATIONS_ARG_DOC), |
| @Param( |
| name = CONFIGURATION_ARG, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = CONFIGURATION_DOC), |
| @Param( |
| name = ASPECTS_ARG, |
| allowedTypes = {@ParamType(type = Sequence.class, generic1 = StarlarkAspectApi.class)}, |
| defaultValue = "[]", |
| named = true, |
| positional = false, |
| doc = ASPECTS_ARG_DOC), |
| }, |
| useStarlarkThread = true) |
| Descriptor labelListAttribute( |
| Boolean allowEmpty, |
| Object configurable, |
| Object defaultValue, |
| Object doc, |
| Object allowFiles, |
| Object allowRules, |
| Sequence<?> providers, |
| Sequence<?> flags, |
| Boolean mandatory, |
| Boolean skipValidations, |
| Object cfg, |
| Sequence<?> aspects, |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "label_keyed_string_dict", |
| doc = |
| "<p>Creates a schema for an attribute holding a dictionary, where the keys are labels " |
| + "and the values are strings. This is a dependency attribute.</p>" |
| + DEPENDENCY_ATTR_TEXT, |
| parameters = { |
| @Param(name = ALLOW_EMPTY_ARG, defaultValue = "True", doc = ALLOW_EMPTY_DOC, named = true), |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| allowedTypes = { |
| @ParamType(type = Dict.class), |
| @ParamType(type = StarlarkFunction.class) |
| }, |
| defaultValue = "{}", |
| named = true, |
| positional = false, |
| doc = |
| DEFAULT_DOC |
| + "Use strings or the <a" |
| + " href=\"../builtins/Label.html#Label\"><code>Label</code></a> function to" |
| + " specify default values, for example," |
| + " <code>attr.label_keyed_string_dict(default = {\"//a:b\": \"value\"," |
| + " \"//a:c\": \"string\"})</code>."), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = ALLOW_FILES_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Sequence.class, generic1 = String.class), |
| @ParamType(type = NoneType.class), |
| }, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = ALLOW_FILES_DOC), |
| @Param( |
| name = ALLOW_RULES_ARG, |
| allowedTypes = { |
| @ParamType(type = Sequence.class, generic1 = String.class), |
| @ParamType(type = NoneType.class), |
| }, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = ALLOW_RULES_DOC), |
| @Param( |
| name = PROVIDERS_ARG, |
| defaultValue = "[]", |
| named = true, |
| positional = false, |
| doc = PROVIDERS_DOC), |
| @Param( |
| name = FLAGS_ARG, |
| allowedTypes = {@ParamType(type = Sequence.class, generic1 = String.class)}, |
| defaultValue = "[]", |
| named = true, |
| positional = false, |
| doc = FLAGS_DOC), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = MANDATORY_DOC), |
| @Param( |
| name = CONFIGURATION_ARG, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = CONFIGURATION_DOC), |
| @Param( |
| name = ASPECTS_ARG, |
| allowedTypes = {@ParamType(type = Sequence.class, generic1 = StarlarkAspectApi.class)}, |
| defaultValue = "[]", |
| named = true, |
| positional = false, |
| doc = ASPECTS_ARG_DOC) |
| }, |
| useStarlarkThread = true) |
| Descriptor labelKeyedStringDictAttribute( |
| Boolean allowEmpty, |
| Object configurable, |
| Object defaultValue, |
| Object doc, |
| Object allowFiles, |
| Object allowRules, |
| Sequence<?> providers, |
| Sequence<?> flags, |
| Boolean mandatory, |
| Object cfg, |
| Sequence<?> aspects, |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "bool", |
| doc = |
| "Creates a schema for a boolean attribute. The corresponding <a" |
| + " href='../builtins/ctx.html#attr'><code>ctx.attr</code></a> attribute will be of" |
| + " type <a href='../core/bool.html'><code>bool</code></a>.", |
| parameters = { |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = DEFAULT_DOC), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = MANDATORY_DOC) |
| }, |
| useStarlarkThread = true) |
| Descriptor boolAttribute( |
| Object configurable, |
| Boolean defaultValue, |
| Object doc, |
| Boolean mandatory, |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "output", |
| doc = "<p>Creates a schema for an output (label) attribute.</p>" + OUTPUT_ATTR_TEXT, |
| parameters = { |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = MANDATORY_DOC) |
| }, |
| useStarlarkThread = true) |
| Descriptor outputAttribute(Object doc, Boolean mandatory, StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "output_list", |
| doc = "Creates a schema for a list-of-outputs attribute." + OUTPUT_ATTR_TEXT, |
| parameters = { |
| @Param( |
| name = ALLOW_EMPTY_ARG, // |
| defaultValue = "True", |
| doc = ALLOW_EMPTY_DOC, |
| named = true), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = MANDATORY_DOC) |
| }, |
| useStarlarkThread = true) |
| Descriptor outputListAttribute( |
| Boolean allowEmpty, Object doc, Boolean mandatory, StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "string_dict", |
| doc = |
| "Creates a schema for an attribute holding a dictionary, where the keys and values are " |
| + "strings.", |
| parameters = { |
| @Param( |
| name = ALLOW_EMPTY_ARG, // |
| defaultValue = "True", |
| doc = ALLOW_EMPTY_DOC, |
| named = true), |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| named = true, |
| positional = false, |
| defaultValue = "{}", |
| doc = DEFAULT_DOC), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = MANDATORY_ARG, |
| named = true, |
| positional = false, |
| defaultValue = "False", |
| doc = MANDATORY_DOC) |
| }, |
| useStarlarkThread = true) |
| Descriptor stringDictAttribute( |
| Boolean allowEmpty, |
| Object configurable, |
| Dict<?, ?> defaultValue, |
| Object doc, |
| Boolean mandatory, |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "string_list_dict", |
| doc = |
| "Creates a schema for an attribute holding a dictionary, where the keys are strings and " |
| + "the values are lists of strings.", |
| parameters = { |
| @Param( |
| name = ALLOW_EMPTY_ARG, // |
| defaultValue = "True", |
| doc = ALLOW_EMPTY_DOC, |
| named = true), |
| @Param( |
| name = CONFIGURABLE_ARG, |
| allowedTypes = { |
| @ParamType(type = Boolean.class), |
| @ParamType(type = Starlark.UnboundMarker.class), |
| }, |
| defaultValue = "unbound", |
| doc = CONFIGURABLE_ARG_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = DEFAULT_ARG, |
| defaultValue = "{}", |
| named = true, |
| positional = false, |
| doc = DEFAULT_DOC), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = MANDATORY_DOC) |
| }, |
| useStarlarkThread = true) |
| Descriptor stringListDictAttribute( |
| Boolean allowEmpty, |
| Object configurable, |
| Dict<?, ?> defaultValue, |
| Object doc, |
| Boolean mandatory, |
| StarlarkThread thread) |
| throws EvalException; |
| |
| @StarlarkMethod( |
| name = "license", |
| doc = "Creates a schema for a license attribute.", |
| // TODO(bazel-team): Implement proper license support for Starlark. |
| parameters = { |
| // TODO(bazel-team): ensure this is the correct default value |
| @Param( |
| name = DEFAULT_ARG, |
| defaultValue = "None", |
| named = true, |
| positional = false, |
| doc = DEFAULT_DOC), |
| @Param( |
| name = DOC_ARG, |
| allowedTypes = {@ParamType(type = String.class), @ParamType(type = NoneType.class)}, |
| defaultValue = "None", |
| doc = DOC_DOC, |
| named = true, |
| positional = false), |
| @Param( |
| name = MANDATORY_ARG, |
| defaultValue = "False", |
| named = true, |
| positional = false, |
| doc = MANDATORY_DOC) |
| }, |
| disableWithFlag = BuildLanguageOptions.INCOMPATIBLE_NO_ATTR_LICENSE, |
| useStarlarkThread = true) |
| Descriptor licenseAttribute( |
| Object defaultValue, Object doc, Boolean mandatory, StarlarkThread thread) |
| throws EvalException; |
| |
| /** An attribute descriptor. */ |
| @StarlarkBuiltin( |
| name = "Attribute", |
| category = DocCategory.BUILTIN, |
| doc = |
| "Representation of a definition of an attribute. Use the <a" |
| + " href=\"../toplevel/attr.html\">attr</a> module to create an Attribute. They are" |
| + " only for use with a <a href=\"../globals/bzl.html#rule\">rule</a> or an <a" |
| + " href=\"../globals/bzl.html#aspect\">aspect</a>.") |
| interface Descriptor extends StarlarkValue {} |
| } |
