List of usage examples for org.eclipse.jdt.internal.compiler.codegen CodeStream pop
public void pop()
From source file:org.eclipse.objectteams.otdt.internal.core.compiler.statemachine.transformer.RoleMigrationImplementor.java
License:Open Source License
static void genMigrateToBaseInstructions(CodeStream codeStream, SourceTypeBinding roleBinding, Scope scope, char[] cacheName) { FieldBinding baseField = roleBinding.getField(IOTConstants._OT_BASE, true); // accessing the cache (using remove() and put()): ReferenceBinding cacheTypeBinding = (ReferenceBinding) scope.getType(IOTConstants.WEAK_HASH_MAP, 3); MethodBinding remove = getMethod(cacheTypeBinding, "remove".toCharArray(), 1); //$NON-NLS-1$ MethodBinding put = cacheTypeBinding.getMethod(scope, "put".toCharArray()); //$NON-NLS-1$ // accessing the base object (using _OT$removeRole() and _OT$addRole()): WeavingScheme weavingScheme = scope.compilerOptions().weavingScheme; ReferenceBinding iboundBase = (ReferenceBinding) scope .getType(weavingScheme == WeavingScheme.OTDRE ? IOTConstants.ORG_OBJECTTEAMS_IBOUNDBASE2 : IOTConstants.ORG_OBJECTTEAMS_IBOUNDBASE, 3); // remove old from cache codeStream.aload_0(); // this codeStream.fieldAccess(Opcodes.OPC_getfield, enclosingInstanceField(roleBinding), // this.this$n roleBinding);//from w w w. j ava 2s. c o m codeStream.fieldAccess(Opcodes.OPC_getfield, roleBinding.enclosingType().getField(cacheName, true), // this.this$n._OT$cache$R roleBinding.enclosingType()); codeStream.dup(); // for use in put() below codeStream.aload_0(); // this codeStream.fieldAccess(Opcodes.OPC_getfield, baseField, // this._OT$base roleBinding); codeStream.dup(); // share for nested method call // this._OT$base // remove role from this (old) base genAddOrRemoveRole(codeStream, scope, iboundBase, false);// -> void // -> base._OT$removeRole(this) codeStream.invoke(Opcodes.OPC_invokevirtual, remove, // -> cache.remove(base) cacheTypeBinding); codeStream.pop(); // discard result // this._OT$base = (MyBase)otherBase codeStream.aload_0(); // this codeStream.aload_1(); // otherBase codeStream.checkcast(roleBinding.baseclass()); codeStream.fieldAccess(Opcodes.OPC_putfield, baseField, roleBinding); // add new to cache (cache is still on the stack) codeStream.aload_1(); // otherBase codeStream.aload_0(); // this (role) codeStream.invoke(Opcodes.OPC_invokevirtual, put, cacheTypeBinding); // add to new base: codeStream.aload_1(); // otherBase genAddOrRemoveRole(codeStream, scope, iboundBase, true); // -> void // -> base._OT$addRemoveRole(this, false) codeStream.return_(); }