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# Copyright 2019 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import unittest
from .code_node import SymbolNode
from .code_node import SymbolScopeNode
from .code_node import TextNode
from .code_node import render_code_node
from .code_node_cxx import CxxClassDefNode
from .code_node_cxx import CxxFuncDefNode
from .code_node_cxx import CxxLikelyIfNode
from .code_node_cxx import CxxUnlikelyIfNode
from .codegen_accumulator import CodeGenAccumulator
from .mako_renderer import MakoRenderer
class CodeNodeCxxTest(unittest.TestCase):
def setUp(self):
super(CodeNodeCxxTest, self).setUp()
self.addTypeEqualityFunc(str, self.assertMultiLineEqual)
def assertRenderResult(self, node, expected):
if node.renderer is None:
node.set_renderer(MakoRenderer())
if node.accumulator is None:
node.set_accumulator(CodeGenAccumulator())
def simplify(text):
return "\n".join(
[" ".join(line.split()) for line in text.split("\n")])
actual = simplify(render_code_node(node))
expected = simplify(expected)
self.assertEqual(actual, expected)
def test_symbol_definition_with_branches(self):
root = SymbolScopeNode()
root.register_code_symbols([
SymbolNode("var1", "int ${var1} = 1;"),
SymbolNode("var2", "int ${var2} = 2;"),
SymbolNode("var3", "int ${var3} = 3;"),
SymbolNode("var4", "int ${var4} = 4;"),
SymbolNode("var5", "int ${var5} = 5;"),
SymbolNode("var6", "int ${var6} = 6;"),
])
root.extend([
TextNode("${var1};"),
CxxUnlikelyIfNode(
cond=TextNode("${var2}"),
body=[
TextNode("${var3};"),
TextNode("return ${var4};"),
]),
CxxLikelyIfNode(
cond=TextNode("${var5}"), body=[
TextNode("return ${var6};"),
]),
TextNode("${var3};"),
])
self.assertRenderResult(
root, """\
int var1 = 1;
var1;
int var2 = 2;
int var3 = 3;
if (var2) {
var3;
int var4 = 4;
return var4;
}
int var5 = 5;
if (var5) {
int var6 = 6;
return var6;
}
var3;\
""")
def test_symbol_definition_with_nested_branches(self):
root = SymbolScopeNode()
root.register_code_symbols([
SymbolNode("var1", "int ${var1} = 1;"),
SymbolNode("var2", "int ${var2} = 2;"),
SymbolNode("var3", "int ${var3} = 3;"),
SymbolNode("var4", "int ${var4} = 4;"),
SymbolNode("var5", "int ${var5} = 5;"),
SymbolNode("var6", "int ${var6} = 6;"),
])
root.extend([
CxxUnlikelyIfNode(
cond=TextNode("false"),
body=[
CxxUnlikelyIfNode(
cond=TextNode("false"),
body=[
TextNode("return ${var1};"),
]),
TextNode("return;"),
]),
CxxLikelyIfNode(
cond=TextNode("true"),
body=[
CxxLikelyIfNode(
cond=TextNode("true"),
body=[
TextNode("return ${var2};"),
]),
TextNode("return;"),
]),
])
self.assertRenderResult(
root, """\
if (false) {
if (false) {
int var1 = 1;
return var1;
}
return;
}
if (true) {
if (true) {
int var2 = 2;
return var2;
}
return;
}\
""")
def test_function_definition_minimum(self):
root = CxxFuncDefNode(
name="blink::bindings::func", arg_decls=[], return_type="void")
self.assertRenderResult(root, """\
void blink::bindings::func() {
}\
""")
def test_function_definition_full(self):
root = CxxFuncDefNode(
name="blink::bindings::func",
arg_decls=["int arg1", "int arg2"],
return_type="void",
const=True,
override=True,
member_initializer_list=[
"member1(0)",
"member2(\"str\")",
])
root.body.register_code_symbols([
SymbolNode("var1", "int ${var1} = 1;"),
SymbolNode("var2", "int ${var2} = 2;"),
])
root.body.extend([
CxxUnlikelyIfNode(
cond=TextNode("${var1}"), body=[TextNode("return ${var1};")]),
TextNode("return ${var2};"),
])
self.assertRenderResult(
root, """\
void blink::bindings::func(int arg1, int arg2) const override\
: member1(0), member2("str") {
int var1 = 1;
if (var1) {
return var1;
}
int var2 = 2;
return var2;
}\
""")
def test_class_definition(self):
root = CxxClassDefNode("X", ["A", "B"], final=True)
root.public_section.extend([
TextNode("void m1();"),
TextNode("void m2();"),
])
root.private_section.extend([
TextNode("int m1_;"),
TextNode("int m2_;"),
])
self.assertRenderResult(
root, """\
class X final : public A, public B {
public:
void m1();
void m2();
private:
int m1_;
int m2_;
};\
""")
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