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constant pool can also contains string constants

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This commit is contained in:
Volker Berlin 2019-11-03 13:52:07 +01:00
parent 4f79782bfe
commit ca9efce370
2 changed files with 17 additions and 5 deletions
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5
src/de/inetsoftware/jwebassembly/module/JavaMethodWasmCodeBuilder.java
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@ -16,7 +16,6 @@
package de.inetsoftware.jwebassembly.module; package de.inetsoftware.jwebassembly.module;
import java.io.IOException; import java.io.IOException;
import java.util.List;
import javax.annotation.Nonnull; import javax.annotation.Nonnull;
@ -126,11 +125,11 @@ class JavaMethodWasmCodeBuilder extends WasmCodeBuilder {
addConstInstruction( Integer.valueOf( byteCode.readShort() ), ValueType.i32, codePos, lineNumber ); addConstInstruction( Integer.valueOf( byteCode.readShort() ), ValueType.i32, codePos, lineNumber );
break; break;
case 18: // ldc case 18: // ldc
addConstInstruction( (Number)constantPool.get( byteCode.readUnsignedByte() ), codePos, lineNumber ); addConstInstruction( constantPool.get( byteCode.readUnsignedByte() ), codePos, lineNumber );
break; break;
case 19: // ldc_w case 19: // ldc_w
case 20: // ldc2_w case 20: // ldc2_w
addConstInstruction( (Number)constantPool.get( byteCode.readUnsignedShort() ), codePos, lineNumber ); addConstInstruction( constantPool.get( byteCode.readUnsignedShort() ), codePos, lineNumber );
break; break;
case 21: // iload case 21: // iload
addLoadStoreInstruction( ValueType.i32, true, byteCode.readUnsignedIndex( wide ), codePos, lineNumber ); addLoadStoreInstruction( ValueType.i32, true, byteCode.readUnsignedIndex( wide ), codePos, lineNumber );

17
src/de/inetsoftware/jwebassembly/module/WasmCodeBuilder.java
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@ -17,7 +17,9 @@ package de.inetsoftware.jwebassembly.module;
import java.io.IOException; import java.io.IOException;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List; import java.util.List;
import java.util.Map;
import java.util.function.Function; import java.util.function.Function;
import javax.annotation.Nonnegative; import javax.annotation.Nonnegative;
@ -59,6 +61,8 @@ public abstract class WasmCodeBuilder {
private WasmOptions options; private WasmOptions options;
private Map<String, Integer> strings = new LinkedHashMap<>();
/** /**
* Initialize the code builder; * Initialize the code builder;
* *
@ -308,8 +312,17 @@ public abstract class WasmCodeBuilder {
* @param lineNumber * @param lineNumber
* the line number in the Java source code * the line number in the Java source code
*/ */
protected void addConstInstruction( Number value, int javaCodePos, int lineNumber ) { protected void addConstInstruction( Object value, int javaCodePos, int lineNumber ) {
instructions.add( new WasmConstInstruction( value, javaCodePos, lineNumber ) ); if( value.getClass() == String.class ) {
Integer id = strings.get( value );
if( id == null ) {
strings.put( (String)value, id = strings.size() );
}
FunctionName name = getNonGC( "stringConstant", lineNumber );
addCallInstruction( name, javaCodePos, lineNumber );
} else {
instructions.add( new WasmConstInstruction( (Number)value, javaCodePos, lineNumber ) );
}
} }
/** /**