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Binary expression operator overloads for +/==; Check allocation flow in ternary expressions; Cache empty array buffers; Sealed decorator for non-derivable internals

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dcodeIO
2018-03-23 12:45:29 +01:00
parent 9cc0fcd611
commit 4adb69f73a
18 changed files with 5074 additions and 267 deletions
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31
src/program.ts
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@ -2041,34 +2041,36 @@ export enum CommonFlags {
BUILTIN = 1 << 14,
/** Is unmanaged. */
UNMANAGED = 1 << 15,
/** Is sealed. */
SEALED = 1 << 16,
// Extended modifiers usually derived from basic modifiers or internal decorators
/** Is ambient, that is either declared or nested in a declared element. */
AMBIENT = 1 << 16,
AMBIENT = 1 << 17,
/** Is generic. */
GENERIC = 1 << 17,
GENERIC = 1 << 18,
/** Is part of a generic context. */
GENERIC_CONTEXT = 1 << 18,
GENERIC_CONTEXT = 1 << 19,
/** Is an instance member. */
INSTANCE = 1 << 19,
INSTANCE = 1 << 20,
/** Is a constructor. */
CONSTRUCTOR = 1 << 20,
CONSTRUCTOR = 1 << 21,
/** Is an arrow function. */
ARROW = 1 << 21,
ARROW = 1 << 22,
/** Is a module export. */
MODULE_EXPORT = 1 << 22,
MODULE_EXPORT = 1 << 23,
/** Is a module import. */
MODULE_IMPORT = 1 << 23,
MODULE_IMPORT = 1 << 24,
// Compilation states
/** Is compiled. */
COMPILED = 1 << 24,
COMPILED = 1 << 25,
/** Has a constant value and is therefore inlined. */
INLINED = 1 << 25,
INLINED = 1 << 26,
/** Is scoped. */
SCOPED = 1 << 26
SCOPED = 1 << 27
}
/** Base class of all program elements. */
@ -2873,6 +2875,13 @@ export class ClassPrototype extends Element {
);
return null;
}
if (baseClass.is(CommonFlags.SEALED)) {
this.program.error(
DiagnosticCode.Class_0_is_sealed_and_cannot_be_extended,
declaration.extendsType.range, baseClass.internalName
);
return null;
}
if (baseClass.prototype.is(CommonFlags.UNMANAGED) != this.is(CommonFlags.UNMANAGED)) {
this.program.error(
DiagnosticCode.Structs_cannot_extend_classes_and_vice_versa,