[antlr-interest] Help with error in C code generation (3.1)

[Jim Idle]

On Thu, 2008-08-21 at 17:30 -0600, Patrick McCormick wrote:

> Hi,
> 

Yes - someone else spotted that two - I have checked in a fix so you can
pick it up from the next snapshot build as ANTLR 3.1.1. 

Here is a hack script that I use to build on Linux:

#! /bin/bash

# Local custom tool that builds ANTLR 3.x and rejars it etc. 
#

# Your local copy of ANTLR src
#
pushd ~/antlrsrc/code/antlr/main/src/org/antlr/tool

# Compile the grammar files
#
java antlr.Tool antlr.g 
java antlr.Tool antlr.print.g 
java antlr.Tool assign.types.g 
java antlr.Tool define.g 
java antlr.Tool buildnfa.g 
cp ANTLRTokenTypes.txt ../codegen
cd ../codegen
java antlr.Tool codegen.g 

cd ~/antlrsrc/code/antlr/main/runtime/Java/src

# Build all the java shit <that's this email canned by stupid filters>
#
javac -cp "$CLASSPATH" -d .  org/antlr/runtime/*.java
org/antlr/runtime/*/*.java

# Build the runtime only jar, again, we don't worry about the extra
stuff for now
#
rm /var/tw/jars/ANTLRRuntime.jar
jar cf /var/tw/jars/ANTLRRuntime.jar org/antlr/runtime

cd ~/antlrsrc/code/antlr/main/src
javac -cp "$CLASSPATH" -d . org/antlr/Tool.java org/antlr/*/*.java

# Build the tool jar, not worrying about all the extra stuff that does
not go in the jar
# as this is just for my own testing.
#
rm /var/tw/jars/ANTLRTool.jar
jar cf /var/tw/jars/ANTLRTool.jar \
        org/antlr/Tool.class \
        org/antlr/analysis \
        org/antlr/codegen \
        org/antlr/misc \
        org/antlr/tool

# Go back to whereever we were

popd

Jim



> I've run into some issues with generating C code under the 3.1 release  
> (that is being compiled as part of a C++
> project).  The errors I'm seeing are in the generated C code that is  
> being compiled as C++ source:
> 
> 	antlr/SParser.cpp:14982: error: invalid conversion from ‘void*’ to  
> ‘ANTLR3_BASE_TREE_struct*’
> 
> This corresponds to this line in the generated parser:
> 
> 	 string_literal17_tree = ADAPTOR->create(ADAPTOR, string_literal17);
> 
> In looking over the code generation templates it appears that there is  
> really only on possibility as to where
> this is being generated from.  Here are the possible spots (the first  
> one clearly missing a cast like the others):
> 
> 	ASTParser.stg:<label>_tree = ADAPTOR->create(ADAPTOR, <label>);
> 	ASTParser.stg:<label>_tree = (<ASTLabelType>)(ADAPTOR- 
>  >create(ADAPTOR, <label>));
> 	ASTParser.stg:<label>_tree = (<ASTLabelType>)(ADAPTOR- 
>  >create(ADAPTOR, <label>));
> 
> I'm assuming adding the cast would fix this but I haven't been able to  
> rebuild ANTLR successfully
> from the source distribution to test it out.  I'm running under MacOS  
> X 10.5.4 with XCode 3.1 installed.
> I'm a newbie to both Java and ANTLR so any help would be  
> appreciated.   In particular, I'd like to know how
> I go about rebuilding the source distribution -- I'm using ant but get  
> hundreds of errors during the build.
> 
> Thanks for any help you can provide,
> 
> --Patrick
> 
> 
> 
> 
> 
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