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Commit 9d2cfd39 authored by Sathya Gunasekaran's avatar Sathya Gunasekaran Committed by Commit Bot
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[class] Fix code coverage and add tests for public class fields 

Bug: v8:5367
Change-Id: Id3c2075e3c0a8f9b81a9c6b5f0578b6ecfa58001
Reviewed-on: https://chromium-review.googlesource.com/1205834Reviewed-by: 's avatarGeorg Neis <neis@chromium.org>
Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55687}
parent 16f2853d
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Inline Side-by-side
Showing with 208 additions and 7 deletions
src/parsing/parser-base.h
View file @ 9d2cfd39
......@@ -1126,8 +1126,8 @@ class ParserBase {
ClassLiteralChecker* checker, ClassInfo* class_info,
IdentifierT* property_name, bool has_extends, bool* is_computed_name,
ClassLiteralProperty::Kind* property_kind, bool* is_static, bool* ok);
ExpressionT ParseClassFieldInitializer(ClassInfo* class_info, bool is_static,
bool* ok);
ExpressionT ParseClassFieldInitializer(ClassInfo* class_info, int beg_pos,
bool is_static, bool* ok);
ObjectLiteralPropertyT ParseObjectPropertyDefinition(
ObjectLiteralChecker* checker, bool* is_computed_name,
bool* is_rest_property, bool* ok);
......@@ -2319,7 +2319,8 @@ ParserBase<Impl>::ParseClassPropertyDefinition(
DCHECK_IMPLIES(name_token == Token::PRIVATE_NAME,
allow_harmony_private_fields());
int name_token_position = scanner()->peek_location().beg_pos;
int property_beg_pos = scanner()->peek_location().beg_pos;
int name_token_position = property_beg_pos;
*name = impl()->NullIdentifier();
ExpressionT name_expression;
if (name_token == Token::STATIC) {
......@@ -2384,8 +2385,9 @@ ParserBase<Impl>::ParseClassPropertyDefinition(
checker->CheckClassFieldName(*is_static,
CHECK_OK_CUSTOM(NullLiteralProperty));
}
ExpressionT initializer = ParseClassFieldInitializer(
class_info, *is_static, CHECK_OK_CUSTOM(NullLiteralProperty));
ExpressionT initializer =
ParseClassFieldInitializer(class_info, property_beg_pos, *is_static,
CHECK_OK_CUSTOM(NullLiteralProperty));
ExpectSemicolon(CHECK_OK_CUSTOM(NullLiteralProperty));
ClassLiteralPropertyT result = factory()->NewClassLiteralProperty(
name_expression, initializer, *property_kind, *is_static,
......@@ -2486,7 +2488,7 @@ ParserBase<Impl>::ParseClassPropertyDefinition(
template <typename Impl>
typename ParserBase<Impl>::ExpressionT
ParserBase<Impl>::ParseClassFieldInitializer(ClassInfo* class_info,
ParserBase<Impl>::ParseClassFieldInitializer(ClassInfo* class_info, int beg_pos,
bool is_static, bool* ok) {
DeclarationScope* initializer_scope = is_static
? class_info->static_fields_scope
......@@ -2496,7 +2498,7 @@ ParserBase<Impl>::ParseClassFieldInitializer(ClassInfo* class_info,
initializer_scope =
NewFunctionScope(FunctionKind::kClassFieldsInitializerFunction);
// TODO(gsathya): Make scopes be non contiguous.
initializer_scope->set_start_position(scanner()->location().end_pos);
initializer_scope->set_start_position(beg_pos);
initializer_scope->SetLanguageMode(LanguageMode::kStrict);
}
......
test/mjsunit/code-coverage-class-fields.js 0 → 100644
View file @ 9d2cfd39
// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --no-always-opt --harmony-public-fields --harmony-static-fields
// Files: test/mjsunit/code-coverage-utils.js
%DebugToggleBlockCoverage(true);
TestCoverage(
"class with no fields",
`class X { // 000
}; // 050
`,
[
{ start: 0, end: 98, count: 1 },
{ start: 0, end: 0, count: 0 },
]
);
TestCoverage(
"class that's not created",
`class X { // 000
x = function() { } // 050
}; // 100
`,
[
{ start: 0, end: 148, count: 1 },
{ start: 0, end: 0, count: 0 },
{ start: 51, end: 69, count: 0 },
]
);
TestCoverage(
"class with field thats not called",
`class X { // 000
x = function() { } // 050
}; // 100
let x = new X(); // 150
`,
[
{ start: 0, end: 198, count: 1 },
{ start: 0, end: 0, count: 1 },
{ start: 51, end: 69, count: 1 },
{ start: 55, end: 69, count: 0 }
]
);
TestCoverage(
"class field",
`class X { // 000
x = function() { } // 050
}; // 100
let x = new X(); // 150
x.x(); // 200
`,
[
{ start: 0, end: 248, count: 1 },
{ start: 0, end: 0, count: 1 },
{ start: 51, end: 69, count: 1 },
{ start: 55, end: 69, count: 1 }
]
);
TestCoverage(
"non contiguous class field",
`class X { // 000
x = function() { } // 050
foo() { } // 100
y = function() {} // 150
}; // 200
let x = new X(); // 250
x.x(); // 300
x.y(); // 350
`,
[
{ start: 0, end: 398, count: 1 },
{ start: 0, end: 0, count: 1 },
{ start: 51, end: 168, count: 1 },
{ start: 55, end: 69, count: 1 },
{ start: 101, end: 110, count: 0 },
{ start: 155, end: 168, count: 1 },
]
);
TestCoverage(
"non contiguous class field thats called",
`class X { // 000
x = function() { } // 050
foo() { } // 100
y = function() {} // 150
}; // 200
let x = new X(); // 250
x.x(); // 300
x.y(); // 350
x.foo(); // 400
`,
[
{ start: 0, end: 448, count: 1 },
{ start: 0, end: 0, count: 1 },
{ start: 51, end: 168, count: 1 },
{ start: 55, end: 69, count: 1 },
{ start: 101, end: 110, count: 1 },
{ start: 155, end: 168, count: 1 },
]
);
TestCoverage(
"class with initializer iife",
`class X { // 000
x = (function() { })() // 050
}; // 100
let x = new X(); // 150
`,
[
{ start: 0, end: 198, count: 1 },
{ start: 0, end: 0, count: 1 },
{ start: 51, end: 73, count: 1 },
{ start: 56, end: 70, count: 1 }
]
);
TestCoverage(
"class with computed field",
`
function f() {}; // 000
class X { // 050
[f()] = (function() { })() // 100
}; // 150
let x = new X(); // 200
`,
[
{ start: 0, end: 249, count: 1 },
{ start: 0, end: 15, count: 1 },
{ start: 50, end: 50, count: 1 },
{ start: 102, end: 128, count: 1 },
{ start: 111, end: 125, count: 1 }
]
);
TestCoverage(
"static class field that's not called",
`class X { // 000
static x = function() { } // 050
}; // 100
`,
[
{ start: 0, end: 148, count: 1 },
{ start: 0, end: 0, count: 0 },
{ start: 51, end: 76, count: 1 },
{ start: 62, end: 76, count: 0 }
]
);
TestCoverage(
"static class field",
`class X { // 000
static x = function() { } // 050
}; // 100
X.x(); // 150
`,
[
{ start: 0, end: 198, count: 1 },
{ start: 0, end: 0, count: 0 },
{ start: 51, end: 76, count: 1 },
{ start: 62, end: 76, count: 1 }
]
);
TestCoverage(
"static class field with iife",
`class X { // 000
static x = (function() { })() // 050
}; // 100
`,
[
{ start: 0, end: 148, count: 1 },
{ start: 0, end: 0, count: 0 },
{ start: 51, end: 80, count: 1 },
{ start: 63, end: 77, count: 1 }
]
);
TestCoverage(
"computed static class field",
`
function f() {} // 000
class X { // 050
static [f()] = (function() { })() // 100
}; // 150
`,
[
{ start: 0, end: 199, count: 1 },
{ start: 0, end: 15, count: 1 },
{ start: 50, end: 50, count: 0 },
{ start: 102, end: 135, count: 1 },
{ start: 118, end: 132, count: 1 }
]
);
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