DIType

Author: CodaFi

Sources/LLVM/DIBuilder.swift

@@ -1,5 +1,5 @@
 #if !NO_SWIFTPM
-  import cllvm
+import cllvm
 #endif
 
 public struct DebugInfoFlags: OptionSet {
@@ -362,6 +362,30 @@ public enum DWARFTypeEncoding {
   case ucs
 
   case ascii
+
+  static let typeEncodingMapping: [DWARFTypeEncoding: LLVMDWARFTypeEncoding] = [
+    .address: LLVMDWARFTypeEncoding_address,
+    .boolean: LLVMDWARFTypeEncoding_boolean,
+    .complexFloat: LLVMDWARFTypeEncoding_complex_float,
+    .float: LLVMDWARFTypeEncoding_float, .signed: LLVMDWARFTypeEncoding_signed,
+    .signedChar: LLVMDWARFTypeEncoding_signed_char,
+    .unsigned: LLVMDWARFTypeEncoding_unsigned,
+    .unsignedChar: LLVMDWARFTypeEncoding_unsigned_char,
+    .imaginaryFloat: LLVMDWARFTypeEncoding_imaginary_float,
+    .packedDecimal: LLVMDWARFTypeEncoding_packed_decimal,
+    .numericString: LLVMDWARFTypeEncoding_numeric_string,
+    .edited: LLVMDWARFTypeEncoding_edited,
+    .signedFixed: LLVMDWARFTypeEncoding_signed_fixed,
+    .unsignedFixed: LLVMDWARFTypeEncoding_unsigned_fixed,
+    .decimalFloat: LLVMDWARFTypeEncoding_decimal_float,
+    .utf: LLVMDWARFTypeEncoding_UTF, .ucs: LLVMDWARFTypeEncoding_UCS,
+    .ascii: LLVMDWARFTypeEncoding_ASCII,
+  ]
+
+  /// Retrieves the corresponding `LLVMDWARFTypeEncoding`.
+  public var llvm: LLVMDWARFTypeEncoding {
+    return DWARFTypeEncoding.typeEncodingMapping[self]!
+  }
 }
 
 /// The amount of debug information to emit.

Sources/LLVM/DIType.swift

@@ -0,0 +1,7 @@
+#if !NO_SWIFTPM
+import cllvm
+#endif
+
+public protocol DIType {
+  func asMetadata(with builder: DIBuilder) -> LLVMMetadataRef
+}

Sources/LLVM/FloatType.swift

@@ -4,7 +4,7 @@ import cllvm
 
 /// `FloatType` enumerates representations of a floating value of a particular
 /// bit width and semantics.
-public enum FloatType: IRType {
+public enum FloatType: IRType, DIType {
   /// 16-bit floating point value
   case half
   /// 32-bit floating point value
@@ -34,4 +34,28 @@ public enum FloatType: IRType {
     case .ppcFP128: return LLVMPPCFP128Type()
     }
   }
+
+  public func asMetadata(with builder: DIBuilder) -> LLVMMetadataRef {
+    let name: String
+    switch self {
+    case .half:
+      name = "half"
+    case .float:
+      name = "float"
+    case .double:
+      name = "double"
+    case .x86FP80:
+      name = "float80"
+    case .fp128:
+      name = "float128"
+    case .ppcFP128:
+      name = "ppcfloat128"
+    }
+    return LLVMDIBuilderCreateBasicType(
+      builder.llvm,
+      name,
+      UInt64(builder.module.dataLayout.sizeOfTypeInBits(self)),
+      DWARFTypeEncoding.float.llvm
+    )
+  }
 }