1d339653d5
- Add VariableSpec class with magnitude field validation - Add Formula class supporting multiple input/output variables - Support d4rt_code as string or object with code field - Add comprehensive tests for parsing and serialization - Fix broken test import in pruebas_d4rt_test.dart Follows README.md format requirements exactly
203 lines
8.2 KiB
Dart
203 lines
8.2 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:analyzer/dart/ast/ast.dart';
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import 'package:analyzer/dart/element/element2.dart';
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import 'package:analyzer/dart/element/type.dart';
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import 'package:analyzer/dart/element/type_provider.dart';
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import 'package:analyzer/source/source.dart';
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import 'package:analyzer/src/dart/element/type.dart';
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import 'package:test/test.dart';
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/// The type of an assertion which asserts properties of [T]s.
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typedef Asserter<T> = void Function(T type);
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/// The type of a function which given an [S], builds an assertion over [T]s.
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typedef AsserterBuilder<S, T> = Asserter<T> Function(S arg);
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/// The type of a function which given an [S0] and an S1, builds an assertion
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/// over [T]s.
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typedef AsserterBuilder2<S0, S1, T> = Asserter<T> Function(S0 arg0, S1 arg1);
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/// The type of a function which given an [R] returns an [AsserterBuilder] over
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/// [S]s and [T]s. That is, it returns a function which given an [S], returns
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/// a function over [T]s.
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typedef AsserterBuilderBuilder<R, S, T> = AsserterBuilder<S, T> Function(R arg);
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class AstFinder {
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/// Return the declaration of the class with the given [className] in the
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/// given compilation [unit].
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static ClassDeclaration getClass(CompilationUnit unit, String className) {
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NodeList<CompilationUnitMember> unitMembers = unit.declarations;
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for (CompilationUnitMember unitMember in unitMembers) {
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if (unitMember is ClassDeclaration &&
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unitMember.name.lexeme == className) {
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return unitMember;
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}
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}
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Source source = unit.declaredFragment!.source;
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fail('No class named $className in $source');
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}
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/// Return the declaration of the constructor with the given [constructorName]
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/// in the class with the given [className] in the given compilation [unit].
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/// If constructorName is null, return the default constructor;
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static ConstructorDeclaration getConstructorInClass(
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CompilationUnit unit, String className, String? constructorName) {
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ClassDeclaration unitMember = getClass(unit, className);
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NodeList<ClassMember> classMembers = unitMember.members;
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for (ClassMember classMember in classMembers) {
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if (classMember is ConstructorDeclaration) {
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if (classMember.name?.lexeme == constructorName) {
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return classMember;
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}
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}
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}
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fail('No constructor named $constructorName in $className');
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}
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/// Return the declaration of the field with the given [fieldName] in the
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/// class with the given [className] in the given compilation [unit].
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static VariableDeclaration getFieldInClass(
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CompilationUnit unit, String className, String fieldName) {
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ClassDeclaration unitMember = getClass(unit, className);
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NodeList<ClassMember> classMembers = unitMember.members;
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for (ClassMember classMember in classMembers) {
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if (classMember is FieldDeclaration) {
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NodeList<VariableDeclaration> fields = classMember.fields.variables;
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for (VariableDeclaration field in fields) {
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if (field.name.lexeme == fieldName) {
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return field;
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}
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}
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}
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}
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fail('No field named $fieldName in $className');
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}
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/// Return the declaration of the method with the given [methodName] in the
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/// class with the given [className] in the given compilation [unit].
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static MethodDeclaration getMethodInClass(
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CompilationUnit unit, String className, String methodName) {
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ClassDeclaration unitMember = getClass(unit, className);
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NodeList<ClassMember> classMembers = unitMember.members;
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for (ClassMember classMember in classMembers) {
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if (classMember is MethodDeclaration) {
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if (classMember.name.lexeme == methodName) {
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return classMember;
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}
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}
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}
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fail('No method named $methodName in $className');
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}
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/// Return the statements in the body of the top-level function with the given
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/// [functionName] in the given compilation [unit].
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static List<Statement> getStatementsInTopLevelFunction(
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CompilationUnit unit, String functionName) {
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FunctionDeclaration function = getTopLevelFunction(unit, functionName);
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var body = function.functionExpression.body as BlockFunctionBody;
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return body.block.statements;
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}
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/// Return the declaration of the top-level function with the given
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/// [functionName] in the given compilation [unit].
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static FunctionDeclaration getTopLevelFunction(
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CompilationUnit unit, String functionName) {
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NodeList<CompilationUnitMember> unitMembers = unit.declarations;
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for (CompilationUnitMember unitMember in unitMembers) {
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if (unitMember is FunctionDeclaration) {
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if (unitMember.name.lexeme == functionName) {
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return unitMember;
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}
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}
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}
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fail('No toplevel function named $functionName found');
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}
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}
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/// Class for compositionally building up assertions on types
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class TypeAssertions {
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// TODO(leafp): Make these matchers.
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// https://pub.dev/documentation/matcher/latest/matcher/Matcher-class.html
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/// Provides primitive types for basic type assertions.
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final TypeProvider _typeProvider;
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TypeAssertions(this._typeProvider);
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/// Primitive assertion for the dynamic type.
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Asserter<DartType> get isDynamic => isType(_typeProvider.dynamicType);
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/// Primitive assertion for the int type.
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Asserter<DartType> get isInt => isType(_typeProvider.intType);
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/// Primitive assertion for the dynamic type.
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Asserter<DartType> get isInvalidType => isType(InvalidTypeImpl.instance);
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/// Primitive assertion for the list type.
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Asserter<DartType> get isList => hasElement(_typeProvider.listElement2);
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/// Primitive assertion for the map type.
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Asserter<DartType> get isMap => hasElement(_typeProvider.mapElement2);
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/// Primitive assertion for the Never type.
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Asserter<DartType> get isNever => isType(_typeProvider.neverType);
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/// Primitive assertion for the Null type.
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Asserter<DartType> get isNull => isType(_typeProvider.nullType);
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/// Primitive assertion for the num type.
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Asserter<DartType> get isNum => isType(_typeProvider.numType);
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/// Primitive assertion for the Object type.
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Asserter<DartType> get isObject => isType(_typeProvider.objectType);
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/// Primitive assertion for the string type.
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Asserter<DartType> get isString => isType(_typeProvider.stringType);
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/// Assert that a type has the element that is equal to the [expected].
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Asserter<DartType> hasElement(Element2 expected) =>
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(DartType type) => expect(expected, (type as InterfaceType).element3);
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/// Given assertions for the argument and return types, produce an
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/// assertion over unary function types.
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Asserter<DartType> isFunction2Of(
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Asserter<DartType> argType, Asserter<DartType> returnType) =>
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(DartType type) {
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FunctionType fType = type as FunctionType;
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argType(fType.normalParameterTypes[0]);
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returnType(fType.returnType);
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};
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/// Given an assertion for the base type and assertions over the type
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/// parameters, produce an assertion over instantiations.
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AsserterBuilder<List<Asserter<DartType>>, DartType> isInstantiationOf(
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Asserter<DartType> baseAssert) =>
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(List<Asserter<DartType>> argAsserts) => (DartType type) {
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InterfaceType t = type as InterfaceType;
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baseAssert(t);
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List<DartType> typeArguments = t.typeArguments;
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expect(typeArguments, hasLength(argAsserts.length));
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for (int i = 0; i < typeArguments.length; i++) {
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argAsserts[i](typeArguments[i]);
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}
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};
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/// Assert that a type is the List type, and that the given assertion holds
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/// over the type parameter.
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Asserter<InterfaceType> isListOf(Asserter<DartType> argAssert) =>
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isInstantiationOf(isList)([argAssert]);
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/// Assert that a type is the Map type, and that the given assertions hold
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/// over the type parameters.
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Asserter<InterfaceType> isMapOf(
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Asserter<DartType> argAssert0, Asserter<DartType> argAssert1) =>
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isInstantiationOf(isMap)([argAssert0, argAssert1]);
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/// Assert that a type is equal to the [expected].
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Asserter<DartType> isType(DartType expected) => (DartType t) {
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expect(t, expected);
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};
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}
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