Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include <stdlib.h> |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6 | #include <map> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7 | |
| 8 | #include "src/v8.h" |
| 9 | |
| 10 | #include "src/ast/ast.h" |
| 11 | #include "src/ast/ast-expression-visitor.h" |
| 12 | #include "src/ast/scopes.h" |
| 13 | #include "src/parsing/parser.h" |
| 14 | #include "src/parsing/rewriter.h" |
| 15 | #include "test/cctest/cctest.h" |
| 16 | #include "test/cctest/expression-type-collector.h" |
| 17 | #include "test/cctest/expression-type-collector-macros.h" |
| 18 | |
| 19 | using namespace v8::internal; |
| 20 | |
| 21 | namespace { |
| 22 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 23 | class NodeTypeCounter : public AstExpressionVisitor { |
| 24 | public: |
| 25 | typedef std::map<AstNode::NodeType, int> Counters; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 26 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 27 | NodeTypeCounter(Isolate* isolate, Expression* expr, Counters* counts) |
| 28 | : AstExpressionVisitor(isolate, expr), counts_(counts) {} |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 29 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 30 | protected: |
| 31 | void VisitExpression(Expression* expr) override { |
| 32 | (*counts_)[expr->node_type()]++; |
| 33 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 34 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 35 | private: |
| 36 | Counters* counts_; |
| 37 | }; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 38 | |
| 39 | } // namespace |
| 40 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 41 | TEST(VisitExpression) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 42 | const char test_function[] = |
| 43 | "function GeometricMean(stdlib, foreign, buffer) {\n" |
| 44 | " \"use asm\";\n" |
| 45 | "\n" |
| 46 | " var exp = stdlib.Math.exp;\n" |
| 47 | " var log = stdlib.Math.log;\n" |
| 48 | " var values = new stdlib.Float64Array(buffer);\n" |
| 49 | "\n" |
| 50 | " function logSum(start, end) {\n" |
| 51 | " start = start|0;\n" |
| 52 | " end = end|0;\n" |
| 53 | "\n" |
| 54 | " var sum = 0.0, p = 0, q = 0;\n" |
| 55 | "\n" |
| 56 | " // asm.js forces byte addressing of the heap by requiring shifting " |
| 57 | "by 3\n" |
| 58 | " for (p = start << 3, q = end << 3; (p|0) < (q|0); p = (p + 8)|0) {\n" |
| 59 | " sum = sum + +log(values[p>>3]);\n" |
| 60 | " }\n" |
| 61 | "\n" |
| 62 | " return +sum;\n" |
| 63 | " }\n" |
| 64 | "\n" |
| 65 | " function geometricMean(start, end) {\n" |
| 66 | " start = start|0;\n" |
| 67 | " end = end|0;\n" |
| 68 | "\n" |
| 69 | " return +exp(+logSum(start, end) / +((end - start)|0));\n" |
| 70 | " }\n" |
| 71 | "\n" |
| 72 | " return { geometricMean: geometricMean };\n" |
| 73 | "}\n"; |
| 74 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 75 | // Parse + compile test_function, and extract the AST node for it. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 76 | v8::V8::Initialize(); |
| 77 | HandleAndZoneScope handles; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 78 | i::Isolate* isolate = CcTest::i_isolate(); |
| 79 | i::Handle<i::String> source_code = |
| 80 | isolate->factory() |
| 81 | ->NewStringFromUtf8(i::CStrVector(test_function)) |
| 82 | .ToHandleChecked(); |
| 83 | i::Handle<i::Script> script = isolate->factory()->NewScript(source_code); |
| 84 | i::ParseInfo info(handles.main_zone(), script); |
| 85 | i::Parser parser(&info); |
| 86 | info.set_global(); |
| 87 | info.set_lazy(false); |
| 88 | info.set_allow_lazy_parsing(false); |
| 89 | info.set_toplevel(true); |
| 90 | CHECK(i::Compiler::ParseAndAnalyze(&info)); |
| 91 | Expression* test_function_expr = |
| 92 | info.scope()->declarations()->at(0)->AsFunctionDeclaration()->fun(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 93 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 94 | // Run NodeTypeCounter and sanity check counts for 3 expression types, |
| 95 | // and for overall # of types found. |
| 96 | NodeTypeCounter::Counters counts; |
| 97 | NodeTypeCounter(isolate, test_function_expr, &counts).Run(); |
| 98 | CHECK_EQ(21, counts[AstNode::kBinaryOperation]); |
| 99 | CHECK_EQ(26, counts[AstNode::kLiteral]); |
| 100 | CHECK_EQ(3, counts[AstNode::kFunctionLiteral]); |
| 101 | CHECK_EQ(10, counts.size()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 102 | } |