mirror of
https://github.com/i-net-software/JWebAssembly.git
synced 2025-03-25 23:47:51 +01:00
924 lines
30 KiB
Java
924 lines
30 KiB
Java
/*
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* Copyright 2017 - 2021 Volker Berlin (i-net software)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package de.inetsoftware.jwebassembly.text;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Set;
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import javax.annotation.Nonnegative;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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import de.inetsoftware.jwebassembly.WasmException;
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import de.inetsoftware.jwebassembly.module.FunctionName;
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import de.inetsoftware.jwebassembly.module.ModuleWriter;
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import de.inetsoftware.jwebassembly.module.TypeManager.StructType;
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import de.inetsoftware.jwebassembly.module.TypeManager.StructTypeKind;
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import de.inetsoftware.jwebassembly.module.ValueTypeConvertion;
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import de.inetsoftware.jwebassembly.module.WasmOptions;
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import de.inetsoftware.jwebassembly.module.WasmTarget;
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import de.inetsoftware.jwebassembly.wasm.AnyType;
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import de.inetsoftware.jwebassembly.wasm.ArrayOperator;
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import de.inetsoftware.jwebassembly.wasm.ArrayType;
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import de.inetsoftware.jwebassembly.wasm.FunctionType;
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import de.inetsoftware.jwebassembly.wasm.MemoryOperator;
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import de.inetsoftware.jwebassembly.wasm.NamedStorageType;
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import de.inetsoftware.jwebassembly.wasm.NumericOperator;
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import de.inetsoftware.jwebassembly.wasm.StructOperator;
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import de.inetsoftware.jwebassembly.wasm.ValueType;
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import de.inetsoftware.jwebassembly.wasm.VariableOperator;
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import de.inetsoftware.jwebassembly.wasm.WasmBlockOperator;
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/**
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* Module Writer for text format with S-expressions.
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*
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* @author Volker Berlin
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*
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*/
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public class TextModuleWriter extends ModuleWriter {
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private final WasmTarget target;
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private final StringBuilder output = new StringBuilder();
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private final ArrayList<String> methodParamNames = new ArrayList<>();
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private final StringBuilder typeOutput = new StringBuilder();
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private final ArrayList<String> types = new ArrayList<>();
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private StringBuilder methodOutput;
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private final StringBuilder imports = new StringBuilder();
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private final Map<String, Function> functions = new LinkedHashMap<>();
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private final Map<String, Function> abstracts = new HashMap<>();
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private final Set<String> functionNames = new HashSet<>();
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private int inset;
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private boolean isImport;
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private final HashMap<String, AnyType> globals = new HashMap<>();
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private boolean useExceptions;
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private boolean callIndirect;
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/**
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* Create a new instance.
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*
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* @param target
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* target for the result
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* @param options
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* compiler properties
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* @throws IOException
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* if any I/O error occur
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*/
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public TextModuleWriter( WasmTarget target, WasmOptions options ) throws IOException {
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super( options );
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this.target = target;
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inset++;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void close() throws IOException {
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Appendable textOutput = target.getTextOutput();
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textOutput.append( "(module" );
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for( int i = 0; i < types.size(); i++ ) {
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newline( textOutput );
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textOutput.append( "(type $t" ).append( Integer.toString( i ) ).append( " (func" ).append( types.get( i ) ).append( "))" );
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}
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textOutput.append( imports );
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for( Entry<String, AnyType> entry : globals.entrySet() ) {
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textOutput.append( "\n " );
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textOutput.append( "(global $" ).append( entry.getKey() ).append( " (mut " );
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writeTypeName( textOutput, entry.getValue() );
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textOutput.append( ')' );
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writeDefaultValue( textOutput, entry.getValue() );
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textOutput.append( ')' );
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}
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textOutput.append( output );
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for( Function func : functions.values() ) {
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textOutput.append( func.output );
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}
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if( callIndirect ) {
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int count = functions.size();
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String countStr = Integer.toString( count );
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newline( textOutput );
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textOutput.append( "(table $functions " ).append( countStr ).append( " funcref)" );
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newline( textOutput );
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textOutput.append( "(elem (i32.const 0) " );
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for( int i = 0; i < count; i++ ) {
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textOutput.append( Integer.toString( i ) ).append( ' ' );
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}
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textOutput.append( ')' );
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}
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// table for string constants
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int stringCount = options.strings.size();
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if( stringCount > 0 ) {
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if( !callIndirect ) {
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// we need to create a placeholder table with index 0 if not exists
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newline( textOutput );
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textOutput.append( "(table $functions 0 funcref)" );
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}
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newline( textOutput );
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textOutput.append( "(table $strings " ).append( Integer.toString( stringCount ) ).append( " externref)" );
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}
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// table with classes
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int typeCount = options.types.size();
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if( typeCount > 0 ) {
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newline( textOutput );
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textOutput.append( "(table $classes " ).append( Integer.toString( typeCount ) ).append( " externref)" );
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}
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int dataSize = dataStream.size();
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if( dataSize > 0 ) {
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int pages = (dataSize + 0xFFFF) / 0x10000;
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newline( textOutput );
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String pagesStr = Integer.toString( pages );
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textOutput.append( "(memory " ).append( pagesStr ).append( ')' );
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newline( textOutput );
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textOutput.append( "(data (i32.const 0) \"" );
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byte[] data = dataStream.toByteArray();
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for( byte b : data ) {
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if( b >= ' ' && b < 0x7F && b != '\"' && b != '\\' ) {
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textOutput.append( (char)b );
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} else {
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textOutput.append( '\\' ).append( Character.forDigit( (b >> 4) & 0xF, 16 ) ).append( Character.forDigit( b & 0xF, 16 ) );
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}
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}
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textOutput.append( "\")" );
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}
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inset--;
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newline( textOutput );
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textOutput.append( ')' );
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected int writeStructType( StructType type ) throws IOException {
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type.writeToStream( dataStream, (funcName) -> getFunction( funcName ).id, options );
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if( type.getKind() == StructTypeKind.primitive ) {
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return -9; // Should never use
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}
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if( !options.useGC() ) {
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return ValueType.externref.getCode();
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}
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int oldInset = inset;
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inset = 1;
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newline( output );
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String typeName = normalizeName( type.getName() );
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String kind = type.getKind() == StructTypeKind.array_native ? "array" : "struct";
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output.append( "(type $" ).append( typeName ).append( " (" ).append( kind );
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inset++;
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for( NamedStorageType field : type.getFields() ) {
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newline( output );
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output.append( "(field" );
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if( options.debugNames() && field.getName() != null ) {
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output.append( " $" ).append( typeName ).append( '.' ).append( field.getName() );
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}
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output.append( " (mut " );
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writeTypeName( output, field.getType() );
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output.append( "))" );
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}
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inset--;
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newline( output );
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output.append( "))" );
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inset = oldInset;
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return 0;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeException() throws IOException {
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if( !useExceptions ) {
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useExceptions = true;
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int oldInset = inset;
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inset = 1;
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newline( output );
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output.append( "(event (param externref))" );
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inset = oldInset;
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options.setCatchType( types.size() );
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types.add( options.getCatchType().toString() );
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void prepareFinish() {
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// nothing
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void prepareImport( FunctionName name, String importModule, String importName ) throws IOException {
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if( importName != null ) {
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methodOutput = imports;
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newline( methodOutput );
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methodOutput.append( "(import \"" ).append( importModule ).append( "\" \"" ).append( importName ).append( "\" (func $" ).append( normalizeName( name ) );
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isImport = true;
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}
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}
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/**
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* Normalize the function name for the text format
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*
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* @param name
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* the name
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* @return the normalized name
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*/
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@Nonnull
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private String normalizeName( FunctionName name ) {
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Function function = getFunction( name );
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if( function.name == null ) {
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String base;
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String str = base = normalizeName( name.fullName );
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for( int i = 1; functionNames.contains( str ); i++ ) {
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str = base + '.' + i;
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}
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functionNames.add( str );
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function.name = str;
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}
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return function.name;
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}
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/**
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* Normalize the function name for the text format of IDs.
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* https://webassembly.github.io/spec/core/text/values.html#text-id
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*
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* @param name
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* the name
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* @return the normalized name
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*/
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@Nonnull
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private String normalizeName( String name ) {
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return name.replace( '[', '/' ).replace( ";", "" );
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeExport( FunctionName name, String exportName ) throws IOException {
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newline( output );
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output.append( "(export \"" ).append( exportName ).append( "\" (func $" ).append( normalizeName( name ) ).append( "))" );
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}
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/**
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* Write the name of a type.
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*
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* @param output
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* the target
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* @param type
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* the type
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* @throws IOException
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* if any I/O error occur
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*/
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private void writeTypeName( Appendable output, AnyType type ) throws IOException {
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if( !type.isRefType() ) {
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String name = type == ValueType.u16 ? "i16" : type.toString();
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output.append( name );
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} else if( options.useGC() ) {
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//output.append( ValueType.eqref.toString() );
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output.append( "(ref null " ).append( normalizeName( type.toString() ) ).append( ')' );
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} else {
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output.append( ValueType.externref.toString() );
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeMethodParamStart( @Nonnull FunctionName name, FunctionType funcType ) throws IOException {
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switch( funcType ) {
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case Abstract:
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abstracts.put( name.signatureName, new Function() );
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break;
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case Start:
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newline( imports );
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imports.append( "(start $" ).append( normalizeName( name ) ).append( ")" );
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break;
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}
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typeOutput.setLength( 0 );
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methodParamNames.clear();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeMethodParam( String kind, AnyType valueType, @Nullable String name ) throws IOException {
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if( kind != "local" ) {
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typeOutput.append( '(' ).append( kind ).append( ' ' );
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writeTypeName( typeOutput, valueType );
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typeOutput.append( ')' );
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}
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if( methodOutput == null ) {
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return;
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}
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methodOutput.append( '(' ).append( kind );
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if( options.debugNames() ) {
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if( name != null ) {
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methodOutput.append( " $" ).append( name );
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}
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if( kind != "result" ) {
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methodParamNames.add( name );
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}
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}
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methodOutput.append( ' ' );
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writeTypeName( methodOutput, valueType );
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methodOutput.append( ')' );
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeMethodParamFinish( @Nonnull FunctionName name ) throws IOException {
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String typeStr = typeOutput.toString();
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int idx = types.indexOf( typeStr );
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if( idx < 0 ) {
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idx = types.size();
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types.add( typeStr );
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}
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getFunction( name ).typeId = idx;
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if( isImport ) {
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isImport = false;
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methodOutput.append( "))" );
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methodOutput = null;
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}
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}
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private Function getFunction( FunctionName name ) {
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String signatureName = name.signatureName;
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Function func = functions.get( signatureName );
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if( func == null ) {
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func = abstracts.get( signatureName );
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if( func == null ) {
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func = new Function();
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func.id = functions.size();
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functions.put( name.signatureName, func );
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}
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}
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return func;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeMethodStart( FunctionName name, String sourceFile ) throws IOException {
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methodOutput = getFunction( name ).output;
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newline( methodOutput );
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methodOutput.append( "(func $" );
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methodOutput.append( normalizeName( name ) );
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inset++;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void markSourceLine( int javaSourceLine ) {
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// nothing
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeMethodFinish() throws IOException {
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inset--;
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newline( methodOutput );
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methodOutput.append( ')' );
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methodOutput = null;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeConst( Number value, ValueType valueType ) throws IOException {
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newline( methodOutput );
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methodOutput.append( valueType ).append( ".const " );
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switch( valueType ) {
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case f32:
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float floatValue = value.floatValue();
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if( floatValue == Double.POSITIVE_INFINITY ) {
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methodOutput.append( "inf" );
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} else if( floatValue == Double.NEGATIVE_INFINITY ) {
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methodOutput.append( "-inf" );
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} else {
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methodOutput.append( Float.toHexString( floatValue ).toLowerCase() ).append( " ;;" ).append( value );
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}
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break;
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case f64:
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double doubleValue = value.doubleValue();
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if( doubleValue == Double.POSITIVE_INFINITY ) {
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methodOutput.append( "inf" );
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} else if( doubleValue == Double.NEGATIVE_INFINITY ) {
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methodOutput.append( "-inf" );
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} else {
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methodOutput.append( Double.toHexString( doubleValue ).toLowerCase() ).append( " ;;" ).append( value );
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}
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break;
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default:
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methodOutput.append( value );
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break;
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeLocal( VariableOperator op, int idx ) throws IOException {
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newline( methodOutput );
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methodOutput.append( "local." ).append( op ).append( ' ' );
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String name = idx < methodParamNames.size() ? methodParamNames.get( idx ) : null;
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if( name == null ) {
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methodOutput.append( Integer.toString( idx ) );
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} else {
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methodOutput.append( '$' ).append( name );
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeGlobalAccess( boolean load, FunctionName name, AnyType type ) throws IOException {
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String fullName = normalizeName( name.fullName );
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if( !globals.containsKey( fullName ) ) {
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// declare global variable if not already declared.
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globals.put( fullName, type );
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}
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newline( methodOutput );
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methodOutput.append( load ? "global.get $" : "global.set $" ).append( fullName );
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeTable( boolean load, @Nonnegative int idx ) throws IOException {
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newline( methodOutput );
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methodOutput.append( load ? "table.get " : "table.set " ).append( idx );
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void writeDefaultValue( AnyType type ) throws IOException {
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newline( methodOutput );
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writeDefaultValue( methodOutput, type );
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}
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/**
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* Write the default/initial value for type.
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*
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* @param output
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* the target
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* @param type
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* the type
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeDefaultValue( Appendable output, AnyType type ) throws IOException {
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if( type instanceof ValueType ) {
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ValueType valueType = (ValueType)type;
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switch( valueType ) {
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case i32:
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case i64:
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case f32:
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case f64:
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output.append( type.toString() ).append( ".const 0" );
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break;
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case i8:
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case i16:
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writeDefaultValue( output, ValueType.i32 );
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break;
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case externref:
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output.append( "ref.null extern" );
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break;
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default:
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throw new WasmException( "Not supported storage type: " + type, -1 );
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}
|
|
} else {
|
|
output.append( "ref.null " ).append( options.useGC() ? normalizeName( type.toString() ) : "extern" );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
@Override
|
|
protected void writeNumericOperator( NumericOperator numOp, @Nullable ValueType valueType ) throws IOException {
|
|
boolean negate = false;
|
|
String op = valueType.toString() + '.' + numOp.toString();
|
|
switch( valueType ) {
|
|
case i32:
|
|
case i64:
|
|
switch( numOp ) {
|
|
case div:
|
|
case rem:
|
|
case gt:
|
|
case lt:
|
|
case le:
|
|
case ge:
|
|
op += "_s";
|
|
break;
|
|
case ifnonnull:
|
|
op = "ref.is_null";
|
|
negate = true;
|
|
break;
|
|
case ifnull:
|
|
op = "ref.is_null";
|
|
break;
|
|
case ref_ne:
|
|
op = options.useGC() ? "ref.eq" : null;
|
|
negate = true;
|
|
break;
|
|
case ref_eq:
|
|
op = options.useGC() ? "ref.eq" : null;
|
|
break;
|
|
default:
|
|
}
|
|
break;
|
|
default:
|
|
}
|
|
if( op != null ) {
|
|
newline( methodOutput );
|
|
methodOutput.append( op );
|
|
} else {
|
|
writeFunctionCall( options.ref_eq, null );
|
|
}
|
|
if( negate ) {
|
|
writeNumericOperator( NumericOperator.eqz, ValueType.i32 );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
@Override
|
|
protected void writeCast( ValueTypeConvertion cast ) throws IOException {
|
|
String op;
|
|
switch( cast ) {
|
|
case i2l:
|
|
op = "i64.extend_i32_s";
|
|
break;
|
|
case i2f:
|
|
op = "f32.convert_i32_s";
|
|
break;
|
|
case i2d:
|
|
op = "f64.convert_i32_s";
|
|
break;
|
|
case l2i:
|
|
op = "i32.wrap_i64";
|
|
break;
|
|
case l2f:
|
|
op = "f32.convert_i64_s";
|
|
break;
|
|
case l2d:
|
|
op = "f64.convert_i64_s";
|
|
break;
|
|
case f2i:
|
|
op = "i32.trunc_sat_f32_s";
|
|
break;
|
|
case f2l:
|
|
op = "i64.trunc_sat_f32_s";
|
|
break;
|
|
case f2d:
|
|
op = "f64.promote_f32";
|
|
break;
|
|
case d2i:
|
|
op = "i32.trunc_sat_f64_s";
|
|
break;
|
|
case d2l:
|
|
op = "i64.trunc_sat_f64_s";
|
|
break;
|
|
case d2f:
|
|
op = "f32.demote_f64";
|
|
break;
|
|
case i2b:
|
|
op = "i32.extend8_s";
|
|
break;
|
|
case i2s:
|
|
op = "i32.extend16_s";
|
|
break;
|
|
case f2i_re:
|
|
op = "i32.reinterpret_f32";
|
|
break;
|
|
case i2f_re:
|
|
op = "f32.reinterpret_i32";
|
|
break;
|
|
case d2l_re:
|
|
op = "i64.reinterpret_f64";
|
|
break;
|
|
case l2d_re:
|
|
op = "f64.reinterpret_i64";
|
|
break;
|
|
default:
|
|
throw new Error( "Unknown cast/type conversion: " + cast );
|
|
}
|
|
newline( methodOutput );
|
|
methodOutput.append( op );
|
|
}
|
|
|
|
/**
|
|
* Add a newline with the insets.
|
|
*
|
|
* @param output
|
|
* the target
|
|
* @throws IOException
|
|
* if any I/O error occur
|
|
*/
|
|
private void newline( Appendable output ) throws IOException {
|
|
output.append( '\n' );
|
|
for( int i = 0; i < inset; i++ ) {
|
|
output.append( ' ' );
|
|
output.append( ' ' );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
@Override
|
|
protected void writeFunctionCall( FunctionName name, String comment ) throws IOException {
|
|
newline( methodOutput );
|
|
methodOutput.append( "call $" ).append( normalizeName( name ) );
|
|
if( comment != null ) {
|
|
methodOutput.append( " ;; \"" ).append( comment.replace( "\n", "\\n" ).replace( "\r", "\\r" ) ).append( '"' );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
@Override
|
|
protected void writeVirtualFunctionCall( FunctionName name, AnyType type ) throws IOException {
|
|
callIndirect = true;
|
|
|
|
newline( methodOutput );
|
|
methodOutput.append( "call_indirect (type $t" ).append( getFunction( name ).typeId ).append( ") ;; " ).append( name.signatureName );
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
@Override
|
|
protected void writeBlockCode( @Nonnull WasmBlockOperator op, @Nullable Object data ) throws IOException {
|
|
CharSequence name;
|
|
int insetAfter = 0;
|
|
switch( op ) {
|
|
case RETURN:
|
|
name = "return";
|
|
break;
|
|
case IF:
|
|
name = blockWithResult( "if", (AnyType)data );
|
|
insetAfter++;
|
|
break;
|
|
case ELSE:
|
|
inset--;
|
|
name = "else";
|
|
insetAfter++;
|
|
break;
|
|
case END:
|
|
inset--;
|
|
name = "end";
|
|
break;
|
|
case DROP:
|
|
name = "drop";
|
|
break;
|
|
case BLOCK:
|
|
name = blockWithResult( "block", (AnyType)data );
|
|
insetAfter++;
|
|
break;
|
|
case BR:
|
|
name = "br " + data;
|
|
break;
|
|
case BR_IF:
|
|
name = "br_if " + data;
|
|
break;
|
|
case BR_TABLE:
|
|
StringBuilder builder = new StringBuilder( "br_table");
|
|
for( int i : (int[])data ) {
|
|
builder.append( ' ' ).append( i );
|
|
}
|
|
name = builder.toString();
|
|
break;
|
|
case LOOP:
|
|
name = "loop";
|
|
insetAfter++;
|
|
break;
|
|
case UNREACHABLE:
|
|
name = "unreachable";
|
|
break;
|
|
case TRY:
|
|
name = options.useEH() ? "try" : "block";
|
|
insetAfter++;
|
|
break;
|
|
case CATCH:
|
|
inset--;
|
|
name = options.useEH() ? "catch" : "br 0";
|
|
insetAfter++;
|
|
break;
|
|
case THROW:
|
|
name = options.useEH() ? "throw 0" : "unreachable"; // currently there is only one event/exception with externref
|
|
break;
|
|
case RETHROW:
|
|
name = "rethrow";
|
|
break;
|
|
case BR_ON_EXN:
|
|
name = options.useEH() ? "br_on_exn " + data + " 0" : "unreachable"; // br_on_exn, break depth, event; // currently there is only one event/exception with externref
|
|
break;
|
|
case MONITOR_ENTER:
|
|
case MONITOR_EXIT:
|
|
name = "drop";
|
|
break;
|
|
default:
|
|
throw new Error( "Unknown block: " + op );
|
|
}
|
|
newline( methodOutput );
|
|
methodOutput.append( name );
|
|
inset += insetAfter;
|
|
}
|
|
|
|
/**
|
|
* Create a the result type for a block instruction
|
|
*
|
|
* @param blockName
|
|
* the name of the block for example "if" or "block"
|
|
* @param result
|
|
* the result type of the block
|
|
* @return the block with result type
|
|
* @throws IOException
|
|
* if any I/O error occur
|
|
*/
|
|
@Nonnull
|
|
private CharSequence blockWithResult( String blockName, AnyType result ) throws IOException {
|
|
if( result == null || result == ValueType.empty ) {
|
|
return blockName;
|
|
} else {
|
|
StringBuilder builder = new StringBuilder( blockName );
|
|
if( result.toString().contains( "(" ) ) {
|
|
builder.append( result );
|
|
} else {
|
|
builder.append( "(result " );
|
|
writeTypeName( builder, result );
|
|
builder.append( ")" );
|
|
}
|
|
return builder;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
@Override
|
|
protected void writeArrayOperator( @Nonnull ArrayOperator op, ArrayType type ) throws IOException {
|
|
String operation;
|
|
switch( op ) {
|
|
case NEW:
|
|
newline( methodOutput );
|
|
methodOutput.append( "rtt.canon" ).append( ' ' ).append( normalizeName( type.getNativeArrayType().toString() ) );
|
|
operation = "new_default_with_rtt";
|
|
break;
|
|
case GET:
|
|
operation = "get";
|
|
break;
|
|
case GET_S:
|
|
operation = "get_s";
|
|
break;
|
|
case GET_U:
|
|
operation = "get_u";
|
|
break;
|
|
case SET:
|
|
operation = "set";
|
|
break;
|
|
case LEN:
|
|
operation = "len";
|
|
break;
|
|
case NEW_ARRAY_WITH_RTT:
|
|
operation = "new_default_with_rtt";
|
|
break;
|
|
default:
|
|
throw new Error( "Unknown operator: " + op );
|
|
}
|
|
newline( methodOutput );
|
|
methodOutput.append( "array." ).append( operation ).append( ' ' ).append( normalizeName( type.getNativeArrayType().toString() ) );
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
@Override
|
|
protected void writeStructOperator( StructOperator op, AnyType type, NamedStorageType fieldName, int idx ) throws IOException {
|
|
String operation;
|
|
switch( op ) {
|
|
case NEW:
|
|
case NEW_DEFAULT:
|
|
newline( methodOutput );
|
|
methodOutput.append( "rtt.canon" ).append( ' ' ).append( normalizeName( type.toString() ) );
|
|
operation = "struct.new_default_with_rtt";
|
|
break;
|
|
case GET:
|
|
operation = "struct.get";
|
|
break;
|
|
case SET:
|
|
operation = "struct.set";
|
|
break;
|
|
case NULL:
|
|
if( options.useGC() ) {
|
|
operation = "ref.null";
|
|
} else {
|
|
operation = "ref.null extern";
|
|
type = null;
|
|
}
|
|
break;
|
|
case RTT_CANON:
|
|
operation = "rtt.canon";
|
|
break;
|
|
case NEW_WITH_RTT:
|
|
operation = "struct.new_with_rtt";
|
|
break;
|
|
default:
|
|
throw new Error( "Unknown operator: " + op );
|
|
}
|
|
newline( methodOutput );
|
|
methodOutput.append( operation );
|
|
if( type != null ) {
|
|
methodOutput.append( ' ' ).append( normalizeName( type.toString() ) );
|
|
}
|
|
if( idx >= 0 ) {
|
|
methodOutput.append( ' ' ).append( idx );
|
|
if( fieldName != null ) {
|
|
methodOutput.append( " ;; $" ).append( normalizeName( fieldName.getName() ) );
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
@Override
|
|
protected void writeMemoryOperator( MemoryOperator memOp, ValueType valueType, int offset, int alignment ) throws IOException {
|
|
newline( methodOutput );
|
|
methodOutput.append( valueType ).append( '.' ).append( memOp )
|
|
.append( " offset=" ).append( offset )
|
|
.append( " align=" ).append( 1 << alignment );
|
|
}
|
|
}
|