40 lines
696 B
TypeScript
40 lines
696 B
TypeScript
export default class PrimitiveReader {
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protected p = 0
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constructor(protected readonly buf: Uint8Array) {}
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hasNext() {
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return this.p < this.buf.length
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}
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readUint() {
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var r = 0, s = 1, b;
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do {
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b = this.buf[this.p++];
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r += (b & 0x7F) * s;
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s *= 128;
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} while (b >= 0x80)
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return r;
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}
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readInt() {
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let u = this.readUint();
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if (u % 2) {
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u = (u + 1) / -2;
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} else {
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u = u / 2;
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}
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return u;
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}
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readString() {
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var l = this.readUint();
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return new TextDecoder().decode(this.buf.subarray(this.p, this.p+=l));
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}
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readBoolean() {
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return !!this.buf[this.p++];
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}
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skip(n: number) {
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this.p += n;
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}
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}
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