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Statically eliminate unnecessary branches in generic contexts

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In order to use the new compile time type checks in generics, untaken branches must be skipped because these might be invalid.
This commit is contained in:
dcodeIO
2018-03-17 14:40:58 +01:00
parent 2ed9fac171
commit 83e96892f2
18 changed files with 818 additions and 1769 deletions
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10
std/assembly.d.ts vendored
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@ -195,15 +195,15 @@ declare function isNaN<T = f32 | f64>(value: T): bool;
/** Tests if a 32-bit or 64-bit float is finite, that is not `NaN` or +/-`Infinity`. */
declare function isFinite<T = f32 | f64>(value: T): bool;
/** Tests if the specified expression is of an integer type and not a reference. Compiles to a constant. */
declare function isInteger(value: any): bool;
declare function isInteger(value: any): value is number;
/** Tests if the specified expression is of a float type. Compiles to a constant. */
declare function isFloat(value: any): bool;
declare function isFloat(value: any): value is number;
/** Tests if the specified expression is of a reference type. Compiles to a constant. */
declare function isReference(value: any): bool;
declare function isReference(value: any): value is object | string;
/** Tests if the specified expression can be used ass a string. Compiles to a constant. */
declare function isString(value: any): bool;
declare function isString(value: any): value is string | String;
/** Tests if the specified expression can be used as an array. Compiles to a constant. */
declare function isArray(value: any): bool;
declare function isArray(value: any): value is Array<any>;
/** Traps if the specified value is not true-ish, otherwise returns the (non-nullable) value. */
declare function assert<T>(isTrueish: T, message?: string): T & object; // any better way to model `: T != null`?
/** Parses an integer string to a 64-bit float. */

10
std/portable.d.ts vendored
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@ -141,15 +141,15 @@ declare function isNaN<T = f32 | f64>(value: T): bool;
/** Tests if a 32-bit or 64-bit float is finite, that is not `NaN` or +/-`Infinity`. */
declare function isFinite<T = f32 | f64>(value: T): bool;
/** Tests if the specified value is a valid integer. Can't distinguish an integer from an integral float. */
declare function isInteger(value: any): bool;
declare function isInteger(value: any): value is number;
/** Tests if the specified value is a valid float. Can't distinguish a float from an integer. */
declare function isFloat(value: any): bool;
declare function isFloat(value: any): value is number;
/** Tests if the specified value is of a reference type. */
declare function isReference(value: any): bool;
declare function isReference(value: any): value is object | string;
/** Tests if the specified value can be used as a string. */
declare function isString(value: any): bool;
declare function isString(value: any): value is string | String;
/** Tests if the specified value can be used as an array. */
declare function isArray(value: any): bool;
declare function isArray(value: any): value is Array<any>;
/** Traps if the specified value is not true-ish, otherwise returns the value. */
declare function assert<T>(isTrueish: T | null, message?: string): T;
/** Parses an integer string to a 64-bit float. */