mirror of https://github.com/rusefi/rusefi.git
103 lines
4.1 KiB
Java
103 lines
4.1 KiB
Java
package com.rusefi.output;
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import com.rusefi.*;
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import com.rusefi.parse.TypesHelper;
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import static com.rusefi.ToolUtil.EOL;
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public class BaseCHeaderConsumer implements ConfigurationConsumer {
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private static final String BOOLEAN_TYPE = "bool";
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/**
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* This flag controls if we assign default zero value (useful while generating structures used for class inheritance)
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* versus not assigning default zero value like we need for non-class headers
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* This could be related to configuration header use-case versus "live data" (not very alive idea) use-case
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*
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* TODO: STATIC MUTABLE?! Not good code at all.
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*/
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public static boolean needZeroInit = true;
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private final StringBuilder content = new StringBuilder();
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private static String getHeaderText(FieldIteratorWithOffset iterator) {
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ConfigField configField = iterator.cf;
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if (configField.isBit()) {
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// unused bits are needed for proper struct memsize
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String comment = "\t/**" + EOL + packComment(configField.getComment(), "\t") + "\toffset " + iterator.currentOffset + " bit " + iterator.bitState.get() + " */" + EOL;
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return comment + "\t" + BOOLEAN_TYPE + " " + configField.getName() + " : 1 {};" + EOL;
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}
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String cEntry = getComment(configField.getComment(), iterator.currentOffset, configField.getUnits());
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String typeName = configField.getTypeName();
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String autoscaleSpec = configField.autoscaleSpec();
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if (autoscaleSpec != null) {
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typeName = "scaled_channel<" + typeName + ", " + autoscaleSpec + ">";
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}
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if (!configField.isArray()) {
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// not an array
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cEntry += "\t" + typeName + " " + configField.getName();
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if (needZeroInit && TypesHelper.isPrimitive(configField.getTypeName())) {
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// we need this cast in case of enums
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cEntry += " = (" + configField.getTypeName() + ")0";
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}
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cEntry += ";" + EOL;
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} else {
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cEntry += "\t" + typeName + " " + configField.getName() + "[" + configField.getArraySizeVariableName() + "];" + EOL;
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}
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return cEntry;
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}
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private static String getComment(String comment, int currentOffset, String units) {
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String start = "\t/**";
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String packedComment = packComment(comment, "\t");
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String unitsComment = units.isEmpty() ? "" : "\t * units: " + units + EOL;
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return start + EOL +
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packedComment +
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unitsComment +
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"\t * offset " + currentOffset + EOL + "\t */" + EOL;
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}
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public static String packComment(String comment, String linePrefix) {
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if (comment == null)
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return "";
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if (comment.trim().isEmpty())
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return "";
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String result = "";
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for (String line : comment.split("\\\\n")) {
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result += linePrefix + " * " + line + EOL;
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}
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return result;
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}
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@Override
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public void handleEndStruct(ReaderState readerState, ConfigStructure structure) {
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if (structure.getComment() != null) {
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content.append("/**" + EOL + packComment(structure.getComment(), "") + EOL + "*/" + EOL);
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}
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content.append("// start of " + structure.getName() + EOL);
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content.append("struct " + structure.getName() + " {" + EOL);
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FieldIteratorWithOffset iterator = new FieldIteratorWithOffset(structure.getcFields());
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for (int i = 0; i < structure.getcFields().size(); i++) {
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iterator.start(i);
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content.append(getHeaderText(iterator));
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iterator.currentOffset += iterator.cf.getSize(iterator.next);
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iterator.end();
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}
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content.append("};" + EOL);
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int realSize = iterator.currentOffset;
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// https://stackoverflow.com/questions/621616/c-what-is-the-size-of-an-object-of-an-empty-class
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int cppSize = Math.max(1, realSize);
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content.append("static_assert(sizeof(" + structure.getName() + ") == " + cppSize + ");\n");
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content.append(EOL);
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}
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public String getContent() {
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return content.toString();
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}
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}
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