FilesExpand file tree

 develop

/

RuntimeEnvironment.cs

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

187 lines (156 loc) · 6.26 KB

 develop

/

RuntimeEnvironment.cs

Copy path

Top

File metadata and controls

• Code
• Blame

187 lines (156 loc) · 6.26 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

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

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

/*----------------------------------------------------------

This Source Code Form is subject to the terms of the

Mozilla Public License, v.2.0. If a copy of the MPL

was not distributed with this file, You can obtain one

at http://mozilla.org/MPL/2.0/.

----------------------------------------------------------*/

using System;

using System.Collections.Generic;

using OneScript.Commons;

using OneScript.Compilation;

using OneScript.Compilation.Binding;

using OneScript.Contexts;

using OneScript.Execution;

using ScriptEngine.Libraries;

using ScriptEngine.Machine;

using SymbolScope = OneScript.Compilation.Binding.SymbolScope;

namespace ScriptEngine

{

[Obsolete("Use interface IRuntimeEnvironment")]

public class RuntimeEnvironment : IRuntimeEnvironment, ILibraryManager

{

private readonly SymbolTable _symbols = new SymbolTable();

private SymbolScope _scopeOfGlobalProperties;

private readonly PropertyBag _injectedProperties;

private readonly List<IAttachableContext> _contexts = new List<IAttachableContext>();

private readonly ILibraryManager _libraryManager;

public RuntimeEnvironment()

{

_injectedProperties = new PropertyBag();

_libraryManager = new LibraryManager(_injectedProperties);

}

private void CreateGlobalScopeIfNeeded()

{

if (_scopeOfGlobalProperties != null)

return;

lock (_injectedProperties)

{

_scopeOfGlobalProperties ??= _symbols.PushContext(_injectedProperties);

_contexts.Add(_injectedProperties);

}

}

public void InjectObject(IAttachableContext context)

{

RegisterObject(context);

}

public void InjectGlobalProperty(IValue value, string identifier, string alias, bool readOnly)

{

InjectPropertyInternal(value, identifier, alias, readOnly, null);

}

public void InjectGlobalProperty(IValue value, string identifier, bool readOnly)

{

InjectGlobalProperty(value, identifier, default, readOnly);

}

public void InjectGlobalProperty(IValue value, string identifier, PackageInfo ownerPackage)

{

InjectPropertyInternal(value, identifier, default, true, ownerPackage);

}

private void InjectPropertyInternal(

IValue value,

string identifier,

string alias,

bool readOnly,

PackageInfo ownerPackage)

{

ArgumentNullException.ThrowIfNull(value);

if(!Utils.IsValidIdentifier(identifier))

{

throw new ArgumentException("Invalid identifier", nameof(identifier));

}

if (alias != default && !Utils.IsValidIdentifier(alias))

{

throw new ArgumentException("Invalid identifier", nameof(alias));

}

CreateGlobalScopeIfNeeded();

var num = _injectedProperties.Insert(value, identifier, true, !readOnly);

var bslPropertyInfo = _injectedProperties.GetPropertyInfo(num);

IVariableSymbol registeredSymbol;

if (ownerPackage == null)

{

registeredSymbol = new WrappedPropertySymbol(bslPropertyInfo)

{

Name = identifier,

Alias = alias

};

}

else

{

registeredSymbol = new WrappedLibraryPropertySymbol(bslPropertyInfo, ownerPackage)

{

Name = identifier,

Alias = alias

};

}

_scopeOfGlobalProperties.DefineVariable(registeredSymbol);

}

public void InjectGlobalProperty(IValue value, BslPropertyInfo definition)

{

CreateGlobalScopeIfNeeded();

_injectedProperties.Insert(value, definition);

var symbol = new WrappedPropertySymbol(definition)

{

Name = definition.Name,

Alias = definition.Alias

};

_scopeOfGlobalProperties.DefineVariable(symbol);

}

private void RegisterObject(IAttachableContext context)

{

_symbols.PushContext(context);

_contexts.Add(context);

}

public void SetGlobalProperty(string propertyName, IValue value)

{

_symbols.FindVariable(propertyName, out var binding);

var context = _contexts[binding.ScopeNumber];

context.SetPropValue(binding.MemberNumber, value);

}

public IValue GetGlobalProperty(string propertyName)

{

_symbols.FindVariable(propertyName, out var binding);

var context = _contexts[binding.ScopeNumber];

return context.GetPropValue(binding.MemberNumber);

}

public SymbolTable GetSymbolTable() => _symbols;

public IReadOnlyList<IAttachableContext> AttachedContexts => _contexts;

public void InitExternalLibrary(ScriptingEngine runtime, ExternalLibraryInfo library, IBslProcess process)

{

_libraryManager.InitExternalLibrary(runtime, library, process);

}

private class WrappedPropertySymbol : IPropertySymbol

{

public WrappedPropertySymbol(BslPropertyInfo propInfo)

{

Property = propInfo;

}

public string Name { get; set; }

public string Alias { get; set; }

public Type Type => Property.PropertyType;

public BslPropertyInfo Property { get; }

}

private class WrappedLibraryPropertySymbol : IPropertySymbol, IPackageSymbol

{

public WrappedLibraryPropertySymbol(BslPropertyInfo propInfo, PackageInfo ownerPackage)

{

Property = propInfo;

Package = ownerPackage;

}

public string Name { get; set; }

public string Alias { get; set; }

public Type Type => Property.PropertyType;

public BslPropertyInfo Property { get; }

private PackageInfo Package { get; }

public PackageInfo GetPackageInfo() => Package;

}

}

}