Multiple issues: ta.dmi subscript, ta.tr syntax, function param mismatch

[hsariaslan]

PyneComp Bug Report

Summary

PyneComp generates code that attempts subscript access on ta.dmi() output values, but PyneCore's ta.dmi() returns tuple[float, float, float], not Series. This causes TypeError: 'float' object is not subscriptable at runtime.

Environment

• PyneCore Version: 6.3.4
• Python Version: 3.12
• Pine Script Version: v6
• Platform: Linux

Minimal Reproduction

Pine Script Input

//@version=6
strategy("ADX Test")

[diplus, diminus, adx] = ta.dmi(14, 14)

// Access historical ADX value
if adx[1] > 25
    strategy.entry("Long", strategy.long)

Generated Python (problematic)

diplus, diminus, adx = ta.dmi(14, 14)

# ERROR: 'float' object is not subscriptable
if adx[1] > 25:
    strategy.entry("Long", strategy.long)

Error

TypeError: 'float' object is not subscriptable

Root Cause

PyneCore's ta.dmi() returns floats (current bar values only):

# From pynecore/lib/ta.py
def dmi(diLength: int, adxSmoothing: int) -> tuple[float | NA, float | NA, float | NA]:
    ...
    return p, m, adx  # floats, not Series

PyneComp generates direct subscript access (adx[1]) which fails on floats.

Expected Behavior

PyneComp should wrap ta.dmi() output with inline_series() to enable historical access, similar to how it handles ta.crossover():

# Working pattern (ta.crossover):
result = inline_series(ta.crossover(fast, slow), i)

# Expected pattern for ta.dmi():
adx = inline_series(ta.dmi(14, 14)[2], 0)
# Then for historical access:
if inline_series(adx, 1) > 25:
    ...

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Additional Issue: ta.tr Without Parentheses

PyneComp generates ta.tr without calling it as a function:

# Generated (incorrect):
atr = ta.rma(ta.tr, 14)  # ta.tr is a function reference

# Should be:
atr = ta.rma(ta.tr(), 14)  # ta.tr() returns the value

Error: TypeError: float() argument must be a string or a real number, not 'function'

---

Additional Issue: Function Parameter Name Mismatch

PyneComp generates function definitions with mangled parameter names but calls them with non-mangled keyword arguments:

# Generated function definition:
def my_func(param__abc123__):
    pass

# Generated call site:
my_func(param="value")  # ERROR: unexpected keyword argument

Error: TypeError: got an unexpected keyword argument 'param'

---

Affected Functions

• ta.dmi() - confirmed
• ta.tr - confirmed
• Likely other TA functions returning scalars/tuples

Severity

High - Prevents execution of any strategy using ADX with historical lookback.

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PyneCore Version: 6.3.4
Date: 2025-12-04