1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
package org.zwobble.hobgoblin.compiler.parser;
import org.junit.jupiter.api.Test;
import org.zwobble.hobgoblin.compiler.ast.DocComment;
import org.zwobble.hobgoblin.compiler.ast.untyped.UntypedStructDefinitionNode;
import org.zwobble.hobgoblin.compiler.ast.untyped.UntypedStructFieldDefinitionNode;
import org.zwobble.hobgoblin.compiler.ast.untyped.UntypedTypeLevelReferenceNode;
import static org.zwobble.hobgoblin.compiler.ast.untyped.UntypedStructDefinitionNodeMatcher.isUntypedStructDefinitionNode;
import static org.zwobble.hobgoblin.compiler.ast.untyped.UntypedTypeParamNodeMatcher.isUntypedTypeParamNode;
import static org.zwobble.hobgoblin.compiler.parser.ParserTesting.parseString;
import static org.zwobble.precisely.AssertThat.assertThat;
import static org.zwobble.precisely.Matchers.*;
public class ParserStructDefinitionTests {
@Test
public void emptyStruct() {
var source = """
struct Point {
}""";
var node = parseString(
source,
Parser::parseNamespaceStatement
);
assertThat(node, instanceOf(
UntypedStructDefinitionNode.class,
has("name", UntypedStructDefinitionNode::name, equalTo("Point")),
has("fields", UntypedStructDefinitionNode::fields, isOptionalOf(isSequence()))
));
}
@Test
public void oneTypeParam() {
var source = """
struct A[B] {
}""";
var node = parseString(
source,
Parser::parseNamespaceStatement
);
assertThat(node, isUntypedStructDefinitionNode()
.withTypeParams(isOptionalOf(isSequence(
isUntypedTypeParamNode().withName(equalTo("B"))
)))
);
}
@Test
public void manyTypeParams() {
var source = """
struct A[B, C] {
}""";
var node = parseString(
source,
Parser::parseNamespaceStatement
);
assertThat(node, isUntypedStructDefinitionNode()
.withTypeParams(isOptionalOf(isSequence(
isUntypedTypeParamNode().withName(equalTo("B")),
isUntypedTypeParamNode().withName(equalTo("C"))
)))
);
}
@Test
public void structWithFields() {
var source = """
struct Point {
field x: Int;
field y: Int;
}""";
var node = parseString(
source,
Parser::parseNamespaceStatement
);
assertThat(node, instanceOf(
UntypedStructDefinitionNode.class,
has("fields", UntypedStructDefinitionNode::fields, isOptionalOf(isSequence(
instanceOf(
UntypedStructFieldDefinitionNode.class,
has("name", UntypedStructFieldDefinitionNode::name, equalTo("x")),
has(
"type",
UntypedStructFieldDefinitionNode::type,
instanceOf(
UntypedTypeLevelReferenceNode.class,
has("name", UntypedTypeLevelReferenceNode::name, equalTo("Int"))
)
)
),
instanceOf(
UntypedStructFieldDefinitionNode.class,
has("name", UntypedStructFieldDefinitionNode::name, equalTo("y")),
has(
"type",
UntypedStructFieldDefinitionNode::type,
instanceOf(
UntypedTypeLevelReferenceNode.class,
has("name", UntypedTypeLevelReferenceNode::name, equalTo("Int"))
)
)
)
)))
));
}
@Test
public void singletonStruct() {
var source = """
struct Point {
singleton;
}""";
var node = parseString(
source,
Parser::parseNamespaceStatement
);
assertThat(node, instanceOf(
UntypedStructDefinitionNode.class,
has("fields", UntypedStructDefinitionNode::fields, isOptionalEmpty())
));
}
@Test
public void structWithDocComment() {
var source = """
/// A 2D point.
///
/// Positive y is up.
struct Point {
}""";
var node = parseString(
source,
Parser::parseNamespaceStatement
);
assertThat(node, instanceOf(
UntypedStructDefinitionNode.class,
has(
"docComment",
UntypedStructDefinitionNode::docComment,
equalTo(new DocComment("A 2D point.\n\nPositive y is up.\n"))
)
));
}
}
|
