Examples with WasmMemory org.graalvm.wasm.memory.WasmMemory used on opensource projects

Example 1 with WasmMemory

use of org.graalvm.wasm.memory.WasmMemory in project graal by oracle.

the class EmscriptenGetHeapSizeNode method executeWithContext.

@Override
public Object executeWithContext(VirtualFrame frame, WasmContext context) {
    WasmMemory memory = instance.memory();
    final long byteSize = memory.byteSize();
    return (int) byteSize;
}

Example 2 with WasmMemory

use of org.graalvm.wasm.memory.WasmMemory in project graal by oracle.

the class SetErrNoNode method executeWithContext.

@Override
public Object executeWithContext(VirtualFrame frame, WasmContext context) {
    Object[] args = frame.getArguments();
    assert args.length == 1;
    int value = (int) args[0];
    // TODO: Get address (3120) via call to `___errno_location` WebAssembly function.
    WasmMemory memory = instance.memory();
    memory.store_i32(this, 3120, value);
    return value;
}

Example 3 with WasmMemory

use of org.graalvm.wasm.memory.WasmMemory in project graal by oracle.

the class WebAssembly method readModuleImports.

private static HashMap<String, ImportModule> readModuleImports(WasmModule module, Object importObject) {
    CompilerAsserts.neverPartOfCompilation();
    final Sequence<ModuleImportDescriptor> imports = moduleImports(module);
    if (imports.getArraySize() != 0 && importObject == null) {
        throw new WasmJsApiException(WasmJsApiException.Kind.TypeError, "Module requires imports, but import object is undefined.");
    }
    HashMap<String, ImportModule> importModules = new HashMap<>();
    final InteropLibrary lib = InteropLibrary.getUncached();
    try {
        int i = 0;
        while (i < imports.getArraySize()) {
            final ModuleImportDescriptor d = (ModuleImportDescriptor) imports.readArrayElement(i);
            final Object importedModule = getMember(importObject, d.module());
            final Object member = getMember(importedModule, d.name());
            switch(d.kind()) {
                case function:
                    if (!lib.isExecutable(member)) {
                        throw new WasmJsApiException(WasmJsApiException.Kind.LinkError, "Member " + member + " is not callable.");
                    }
                    WasmFunction f = module.importedFunction(d.name());
                    ensureImportModule(importModules, d.module()).addFunction(d.name(), Pair.create(f, member));
                    break;
                case memory:
                    if (!(member instanceof WasmMemory)) {
                        throw new WasmJsApiException(WasmJsApiException.Kind.LinkError, "Member " + member + " is not a valid memory.");
                    }
                    ensureImportModule(importModules, d.module()).addMemory(d.name(), (WasmMemory) member);
                    break;
                case table:
                    if (!(member instanceof WasmTable)) {
                        throw new WasmJsApiException(WasmJsApiException.Kind.LinkError, "Member " + member + " is not a valid table.");
                    }
                    ensureImportModule(importModules, d.module()).addTable(d.name(), (WasmTable) member);
                    break;
                case global:
                    if (!(member instanceof WasmGlobal)) {
                        throw new WasmJsApiException(WasmJsApiException.Kind.LinkError, "Member " + member + " is not a valid global.");
                    }
                    ensureImportModule(importModules, d.module()).addGlobal(d.name(), (WasmGlobal) member);
                    break;
                default:
                    throw WasmException.create(Failure.UNSPECIFIED_INTERNAL, "Unimplemented case: " + d.kind());
            }
            i += 1;
        }
    } catch (InvalidArrayIndexException | UnknownIdentifierException | ClassCastException | UnsupportedMessageException e) {
        throw WasmException.create(Failure.UNSPECIFIED_INTERNAL, "Unexpected state.");
    }
    return importModules;
}

Example 4 with WasmMemory

use of org.graalvm.wasm.memory.WasmMemory in project graal by oracle.

the class EmscriptenMemcpyBigNode method executeWithContext.

@Override
public Object executeWithContext(VirtualFrame frame, WasmContext context) {
    Object[] args = frame.getArguments();
    assert args.length == 3;
    int dest = (int) args[0];
    int src = (int) args[1];
    int num = (int) args[2];
    WasmMemory memory = instance.memory();
    memory.copy(this, src, dest, num);
    return 0;
}

Example 5 with WasmMemory

use of org.graalvm.wasm.memory.WasmMemory in project graal by oracle.

the class WasmJsApiSuite method testMemoryGrowLimit.

@Test
public void testMemoryGrowLimit() throws IOException {
    runTest(context -> {
        try {
            WasmMemory memory = WebAssembly.memAlloc(1, 1);
            WebAssembly.memGrow(memory, 1);
            Assert.fail("Should have failed - try to grow memory beyond max size");
        } catch (WasmJsApiException e) {
            Assert.assertEquals("Range error expected", WasmJsApiException.Kind.RangeError, e.kind());
        }
    });
}