/**
* Clarifies array dimensions if this defines implicitly sized array by initializer. Does nothing
* otherwise.
*/
private GLSLType clarifyArrayType(GLSLType baseType) {
if (!(baseType instanceof GLSLArrayType)) return baseType; // No need to clarify non-array types
final GLSLArrayType myArrayType = (GLSLArrayType) baseType;
final int[] myDimensions = myArrayType.getDimensions();
{ // Try clarifying using initializer list
GLSLInitializer rawInitializer = getInitializer();
if (rawInitializer != null && rawInitializer instanceof GLSLInitializerList) {
// Clarify using initializer list
GLSLInitializerList initializerList = (GLSLInitializerList) rawInitializer;
for (int i = 0; i < myDimensions.length; i++) {
GLSLInitializer[] initializers = initializerList.getInitializers();
if (myDimensions[i] == GLSLArrayType.UNDEFINED_SIZE_DIMENSION) {
// Can clarify that!
myDimensions[i] = initializers.length;
}
if (initializers.length >= 1 && initializers[0] instanceof GLSLInitializerList) {
initializerList = (GLSLInitializerList) initializers[0];
} else {
// Can't clarify any more
break;
}
}
return baseType; // Dimensions are changed in place, so no need to create new instance
}
}
{ // Try clarifying using expression
GLSLExpression rawExpression = getInitializerExpression();
if (rawExpression != null) {
GLSLType type = rawExpression.getType();
if (type instanceof GLSLArrayType) {
GLSLArrayType arrayType = (GLSLArrayType) type;
// Great, it is being correctly initialized, try to copy as many missing dimensions as we
// can
final int[] dimensions = arrayType.getDimensions();
for (int i = 0; i < myDimensions.length && i < dimensions.length; i++) {
if (myDimensions[i] == GLSLArrayType.UNDEFINED_SIZE_DIMENSION) {
// Copy that
myDimensions[i] = dimensions[i];
}
}
return baseType; // Dimensions are changed in place, so no need to create new instance
} // else - not even valid initializer
}
}
return baseType; // Could not clarify
}
@NotNull
public GLSLType getType() {
GLSLDeclaration declaration = getParentDeclaration();
if (declaration == null) return GLSLTypes.UNKNOWN_TYPE;
GLSLTypeSpecifier declarationType = declaration.getTypeSpecifierNode();
if (declarationType == null) return GLSLTypes.UNKNOWN_TYPE;
GLSLType declaredType = declarationType.getType();
if (!declaredType.isValidType()) return GLSLTypes.UNKNOWN_TYPE;
GLSLArraySpecifier[] arraySpecifiers = findChildrenByClass(GLSLArraySpecifier.class);
if (arraySpecifiers.length == 0) {
return clarifyArrayType(declaredType);
} else {
// Must _prepend_ some dimensions to the type
// In: "vec4[2][4] b[3]" b is "vec4[3][2][4]", not "vec4[2][4][3]"
if (declaredType instanceof GLSLArrayType) {
// Already an array, must append the dimensions
GLSLArrayType declaredArrayType = (GLSLArrayType) declaredType;
int[] existingDimensions = declaredArrayType.getDimensions();
int[] combinedDimensions = new int[existingDimensions.length + arraySpecifiers.length];
System.arraycopy(
existingDimensions,
0,
combinedDimensions,
arraySpecifiers.length,
existingDimensions.length);
for (int i = 0; i < arraySpecifiers.length; i++) {
combinedDimensions[i] = arraySpecifiers[i].getDimensionSize();
}
return clarifyArrayType(
new GLSLArrayType(declaredArrayType.getBaseType(), combinedDimensions));
} else {
int[] dimensions = new int[arraySpecifiers.length];
for (int i = 0; i < dimensions.length; i++) {
dimensions[i] = arraySpecifiers[i].getDimensionSize();
}
return clarifyArrayType(new GLSLArrayType(declaredType, dimensions));
}
}
}