41 lines
1.7 KiB
JavaScript
41 lines
1.7 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.ModuleMemory = void 0;
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const lifetime_1 = require("./lifetime");
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/**
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* @private
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*/
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class ModuleMemory {
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constructor(module) {
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this.module = module;
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}
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toPointerArray(handleArray) {
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const typedArray = new Int32Array(handleArray.map((handle) => handle.value));
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const numBytes = typedArray.length * typedArray.BYTES_PER_ELEMENT;
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const ptr = this.module._malloc(numBytes);
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var heapBytes = new Uint8Array(this.module.HEAPU8.buffer, ptr, numBytes);
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heapBytes.set(new Uint8Array(typedArray.buffer));
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return new lifetime_1.Lifetime(ptr, undefined, (ptr) => this.module._free(ptr));
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}
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newMutablePointerArray(length) {
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const zeros = new Int32Array(new Array(length).fill(0));
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const numBytes = zeros.length * zeros.BYTES_PER_ELEMENT;
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const ptr = this.module._malloc(numBytes);
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const typedArray = new Int32Array(this.module.HEAPU8.buffer, ptr, length);
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typedArray.set(zeros);
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return new lifetime_1.Lifetime({ typedArray, ptr }, undefined, (value) => this.module._free(value.ptr));
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}
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newHeapCharPointer(string) {
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const numBytes = this.module.lengthBytesUTF8(string) + 1;
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const ptr = this.module._malloc(numBytes);
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this.module.stringToUTF8(string, ptr, numBytes);
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return new lifetime_1.Lifetime(ptr, undefined, (value) => this.module._free(value));
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}
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consumeHeapCharPointer(ptr) {
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const str = this.module.UTF8ToString(ptr);
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this.module._free(ptr);
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return str;
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}
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}
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exports.ModuleMemory = ModuleMemory;
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//# sourceMappingURL=memory.js.map
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