Class Parser

java.lang.Object

ca.mcscert.jpipe.compiler.model.Transformation<org.antlr.v4.runtime.CommonTokenStream, org.antlr.v4.runtime.tree.ParseTree>

ca.mcscert.jpipe.compiler.steps.transformations.Parser

public final class Parser
extends Transformation<org.antlr.v4.runtime.CommonTokenStream, org.antlr.v4.runtime.tree.ParseTree>

Delegate to ANTLR the transformation of a token stream into a parse tree.

Parsing errors are reported as non-fatal diagnostics via the CompilationContext, allowing the pipeline to accumulate both lexing and parsing errors before deciding to abort.

Nested Class Summary

Nested classes/interfaces inherited from class Transformation

Transformation.Step<I,O>

Field Summary

Fields inherited from class Transformation

logger

Constructor Summary

Constructors

Constructor	Description
Parser()

Method Summary

Modifier and Type	Method	Description
protected org.antlr.v4.runtime.tree.ParseTree	run(org.antlr.v4.runtime.CommonTokenStream tokens, CompilationContext ctx)	Business logic of this step.

Methods inherited from class Transformation

andThen, fire, of, shouldLog, stepName

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Parser

public Parser()

Method Details

run

protected org.antlr.v4.runtime.tree.ParseTree run(org.antlr.v4.runtime.CommonTokenStream tokens,
 CompilationContext ctx)

Description copied from class: Transformation

Business logic of this step. Must not return null; may throw any exception. Use ctx to report non-fatal diagnostics or inspect previously accumulated errors.

Specified by:

run in class Transformation<org.antlr.v4.runtime.CommonTokenStream, org.antlr.v4.runtime.tree.ParseTree>

Parameters:

tokens - the value produced by the previous step.

ctx - compilation context carrying the source path and diagnostic bag.

Returns:

the transformed value — never null.