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[Basic] Add a utility function for parsing an editor placeholder.

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Swift SVN r26214
This commit is contained in:
Argyrios Kyrtzidis
2015-03-17 01:53:01 +00:00
parent 73331c4c9f
commit 0eac473455
5 changed files with 186 additions and 0 deletions
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54
unittests/Basic/EditorPlaceholderTest.cpp Normal file
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#include "swift/Basic/EditorPlaceholder.h"
#include "llvm/ADT/Optional.h"
#include "gtest/gtest.h"
using namespace swift;
TEST(EditorPlaceholder, EditorPlaceholders) {
const char *Text = "<#this is simple#>";
EditorPlaceholderData Data = *parseEditorPlaceholder(Text);
EXPECT_EQ(EditorPlaceholderKind::Basic, Data.Kind);
EXPECT_EQ("this is simple", Data.Display);
EXPECT_TRUE(Data.Type.empty());
EXPECT_TRUE(Data.TypeForExpansion.empty());
Text = "<#T##x: Int##Int#>";
Data = *parseEditorPlaceholder(Text);
EXPECT_EQ(EditorPlaceholderKind::Typed, Data.Kind);
EXPECT_EQ("x: Int", Data.Display);
EXPECT_EQ("Int", Data.Type);
EXPECT_EQ("Int", Data.TypeForExpansion);
Text = "<#T##x: Int##Blah##()->Int#>";
Data = *parseEditorPlaceholder(Text);
EXPECT_EQ(EditorPlaceholderKind::Typed, Data.Kind);
EXPECT_EQ("x: Int", Data.Display);
EXPECT_EQ("Blah", Data.Type);
EXPECT_EQ("()->Int", Data.TypeForExpansion);
// Fallback.
Text = "<#T##x: Int#>";
Data = *parseEditorPlaceholder(Text);
EXPECT_EQ(EditorPlaceholderKind::Basic, Data.Kind);
EXPECT_EQ("T##x: Int", Data.Display);
EXPECT_TRUE(Data.Type.empty());
EXPECT_TRUE(Data.TypeForExpansion.empty());
}
TEST(EditorPlaceholder, InvalidEditorPlaceholders) {
const char *Text = "<#foo";
Optional<EditorPlaceholderData> DataOpt = parseEditorPlaceholder(Text);
EXPECT_FALSE(DataOpt.hasValue());
Text = "foo#>";
DataOpt = parseEditorPlaceholder(Text);
EXPECT_FALSE(DataOpt.hasValue());
Text = "#foo#>";
DataOpt = parseEditorPlaceholder(Text);
EXPECT_FALSE(DataOpt.hasValue());
Text = " <#foo#>";
DataOpt = parseEditorPlaceholder(Text);
EXPECT_FALSE(DataOpt.hasValue());
}